Form 10-Q - Quarterly report [Sections 13 or 15(d)]

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Table of Contents

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

☒	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024

OR

☐	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from _______ to _______

Commission File Number: 001-38546

NEURONETICS, INC.

(Exact name of registrant as specified in its charter)

​	​
Delaware	33-1051425
(State or other jurisdiction of	(I.R.S. Employer Identification No.)
incorporation or organization)	​
​	​
3222 Phoenixville Pike, Malvern, PA	19355
(Address of principal executive offices)	(Zip Code)
[phone]	​
(Registrant’s telephone number, including area code)	​

​

Not applicable.

(Former name, former address and former fiscal year, if changed since last report)

Securities registered pursuant to Section 12(b) of the Act:

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​	​	​	​	​
Title of each class		Trading Symbol (s)		Name on each exchange on which registered
Common Stock ($0.01 par value)	​	STIM	​	The Nasdaq Global Market

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Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

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Large accelerated filer	☐	Accelerated filer	☐
Non-accelerated filer	☒	Smaller reporting company	☒
​	​	Emerging growth company	☐

​

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

​

There were 30,347,504 shares of the registrant’s common stock outstanding as of November 7, 2024.

​

​

​

Table of Contents

NEURONETICS, INC.

Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2024

Table of Contents

​

​	​	​
​		Page
PART I – FINANCIAL INFORMATION
​	​	​
Item 1.	Financial Statements.	3
​	Balance Sheets as of September 30, 2024 and December 31, 2023	3
​	Statements of Operations for the Three and Nine Months ended September 30, 2024 and 2023	4
​	Statements of Changes in Stockholders’ Equity for the Three and Nine Months ended September 30, 2024 and 2023	5
​	Statements of Cash Flows for the Nine Months ended September 30, 2024 and 2023	6
​	Notes to Interim Financial Statements	7
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations.	25
Item 3.	Quantitative and Qualitative Disclosures About Market Risk.	36
Item 4.	Controls and Procedures.	37
PART II – OTHER INFORMATION
Item 1.	Legal Proceedings.	38
Item 1A.	Risk Factors.	38
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds.	38
Item 3.	Defaults Upon Senior Securities.	38
Item 4.	Mine Safety Disclosures.	38
Item 5.	Other Information.	39
Item 6.	Exhibits.	39
​	SIGNATURES	42

​

​

​

​

2

Table of Contents

PART I - FINANCIAL INFORMATION

Item 1.     Financial Statements.

NEURONETICS, INC.

Balance Sheets

(Unaudited; In thousands, except per share data)

​	​	​	​	​	​	​	​
​	​	September 30,		​	December 31,		​
​		2024			2023		​
Assets		​			​		​
Current assets:		​			​		​
Cash and cash equivalents	​	$	20,867	​	$	59,677	​
Accounts receivable, net	​		16,825	​		15,782	​
Inventory	​		4,960	​		8,093	​
Current portion of net investments in sales-type leases	​		572	​		905	​
Current portion of prepaid commission expense	​		2,921	​		2,514	​
Current portion of notes receivable	​	​	2,477	​	​	2,056	​
Prepaid expenses and other current assets	​		4,837	​		4,766	​
Total current assets	​		53,459	​		93,793	​
Property and equipment, net	​		1,639	​		2,009	​
Operating lease right-of-use assets	​		2,328	​		2,773	​
Net investments in sales-type leases	​		140	​		661	​
Prepaid commission expense	​		8,733	​		8,370	​
Long-term notes receivable	​	​	2,878	​		3,795	​
Other assets	​		4,940	​		4,430	​
Total assets	​	$	74,117	​	$	115,831	​
Liabilities and Stockholders’ Equity	​			​		​	​
Current liabilities:	​			​		​	​
Accounts payable	​	$	3,295	​	$	4,752	​
Accrued expenses	​		11,429	​		12,595	​
Deferred revenue	​		1,311	​		1,620	​
Current portion of operating lease liabilities	​		862	​		845	​
Total current liabilities	​		16,897	​		19,812	​
Long-term debt, net	​		46,002	​		59,283	​
Deferred revenue	​		4	​		200	​
Operating lease liabilities	​		1,833	​		2,346	​
Total liabilities	​		64,736	​		81,641	​
Commitments and contingencies (Note 18)	​		—	​		—	​
Stockholders’ equity:	​			​		​	​
Preferred stock, $0.01 par value: 10,000 shares authorized; no shares issued or outstanding on September 30, 2024 and December 31, 2023	​		—	​		—	​
Common stock, $0.01 par value: 200,000 shares authorized; 30,317 and 29,092 shares issued and outstanding on September 30, 2024 and December 31, 2023, respectively	​		303	​		291	​
Additional paid-in capital	​		416,205	​		409,980	​
Accumulated deficit	​		(407,127)	​		(376,081)	​
Total Stockholders’ equity	​		9,381	​		34,190	​
Total liabilities and Stockholders’ equity	​	$	74,117	​	$	115,831	​

The accompanying notes are an integral part of these unaudited interim financial statements.

​

3

Table of Contents

NEURONETICS, INC.

Statements of Operations

(Unaudited; In thousands, except per share data)

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Three Months Ended

​

Nine Months Ended

​

​

​

September 30,

​

September 30,

​

​

​

2024

​

2023

​

2024

​

2023

​

Revenues

$

18,530

$

17,884

​

$

52,397

$

51,034

​

Cost of revenues

​

4,529

​

6,120

​

13,129

​

15,100

​

Gross profit

​

14,001

​

11,764

​

39,268

​

35,934

​

Operating expenses:

​

​

​

​

​

​

Sales and marketing

​

11,877

​

12,141

​

35,820

​

35,602

​

General and administrative

​

7,436

​

6,339

​

19,540

​

19,151

​

Research and development

​

2,416

​

2,155

​

6,999

​

7,308

​

Total operating expenses

​

21,729

​

20,635

​

62,359

​

62,061

​

Loss from operations

​

(7,728)

​

(8,871)

​

(23,091)

​

(26,127)

​

Other (income) expense:

​

​

​

​

​

​

Interest expense

​

1,725

​

1,184

​

5,529

​

3,580

​

Loss on extinguishment of debt

​

​

4,427

​

​

—

​

​

4,427

​

​

—

​

Other income, net

​

(539)

​

(664)

​

(2,001)

​

(4,895)

​

Net loss

​

$

(13,341)

​

$

(9,391)

​

$

(31,046)

​

$

(24,812)

​

Net loss per share of common stock outstanding, basic and diluted

​

$

(0.44)

​

$

(0.33)

​

$

(1.04)

​

$

(0.87)

​

Weighted average common shares outstanding, basic and diluted

​

30,267

​

28,876

​

29,931

​

28,505

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

The accompanying notes are an integral part of these unaudited interim financial statements.

​

4

Table of Contents

NEURONETICS, INC.

Statements of Changes in Stockholders’ Equity

(Unaudited; In thousands)

​

​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
​				​			Additional						Total
​	​	Common Stock				​	Paid-in		​	Accumulated		​	Stockholders’
​		Shares		Amount			Capital			Deficit			Equity
Balance at December 31, 2022		27,268	​	$	273	​	$	402,679	​	$	(345,892)	​	$	57,060
Share-based awards and options exercises		1,197	​		12	​		(12)	​		—	​		—
Share-based compensation expense		—	​		—	​		1,805	​		—	​		1,805
Net loss		—	​		—	​		—	​		(10,520)	​		(10,520)
Balance at March 31, 2023		28,465	​	$	285	​	$	404,472	​	$	(356,412)	​	$	48,345
Share-based awards and options exercises		348	​		3	​		(3)	​		—	​		—
Share-based compensation expense		—	​		—	​		2,033	​		—	​		2,033
Net loss		—	​		—	​		—	​	​	(4,901)	​		(4,901)
Balance at June 30, 2023		28,813	​	$	288	​	$	406,502	​	$	(361,313)	​	$	45,477
Share-based awards and options exercises		89	​		1	​		(1)	​		—	​		—
Share-based compensation expense		—	​		—	​		1,855	​		—	​		1,855
Net loss		—	​		—	​		—	​		(9,391)	​		(9,391)
Balance at September 30, 2023		28,902	​	$	289	​	$	408,356	​	$	(370,704)	​	$	37,941
​	​	​	​	​	​	​	​	​	​	​	​	​	​	​
Balance at December 31, 2023		29,092	​	$	291	​	$	409,980	​	$	(376,081)	​	$	34,190
Share-based awards and options exercises		883	​		9	​		(9)	​		—	​		—
Share-based compensation expense		—	​		—	​		1,338	​		—	​		1,338
Net loss		—	​		—	​		—	​		(7,873)	​		(7,873)
Balance at March 31, 2024		29,975	​	$	300	​	$	411,309	​	$	(383,954)	​	$	27,655
Share-based awards and options exercises		161	​		1	​		(1)	​		—	​		—
Share-based compensation expense		—	​		—	​		1,563	​		—	​		1,563
Net loss		—	​		—	​		—	​		(9,832)	​		(9,832)
Balance at June 30, 2024		30,136	​	$	301	​	$	412,871	​	$	(393,786)	​	$	19,386
Share-based awards and options exercises		181	​		2	​		(2)	​		—	​		—
Issuance of warrants, net of issuance costs of $35	​	—	​	​	—	​	​	1,917	​	​	—	​	​	1,917
Share-based compensation expense		—	​		—	​		1,419	​		—	​		1,419
Net loss		—	​		—	​		—	​		(13,341)	​		(13,341)
Balance at September 30, 2024		30,317	​	$	303	​	$	416,205	​	$	(407,127)	​	$	9,381

​

The accompanying notes are an integral part of these unaudited interim financial statements.

​

5

Table of Contents

NEURONETICS, INC.

Statements of Cash Flows

(Unaudited; In thousands)

​

​	​	​	​	​	​	​	​
​	​	Nine Months Ended September 30,					​
​	​	2024		​	2023		​
Cash flows from Operating activities:		​			​		​
Net loss	​	$	(31,046)	​	$	(24,812)	​
Adjustments to reconcile net loss to net cash used in operating activities:	​			​			​
Depreciation and amortization	​		1,627	​		1,503	​
Allowance for credit losses	​	​	1,947	​	​	369	​
Inventory impairment	​	​	346	​	​	1,905	​
Share-based compensation	​		4,320	​		5,693	​
Non-cash interest expense	​		580	​		460	​
Loss on extinguishment of debt	​	​	4,427	​	​	—	​
Changes in certain assets and liabilities:	​		​	​			​
Accounts receivable, net	​		(3,834)	​		(7,933)	​
Inventory	​		2,718	​		(2,742)	​
Net investments in sales-type leases	​		854	​		1,092	​
Prepaid commission expense	​		(770)	​		(804)	​
Prepaid expenses and other assets	​		(374)	​		(3,338)	​
Accounts payable	​		(1,524)	​		54	​
Accrued expenses	​		(1,166)	​		(4,801)	​
Deferred revenue	​		(506)	​		(817)	​
Net Cash used in Operating activities	​		(22,401)	​		(34,171)	​
​	​	​	​	​	​	​	​
Cash flows from Investing activities:	​			​			​
Purchases of property and equipment and capitalized software	​		(1,377)	​		(1,490)	​
Repayment of notes receivable	​	​	1,340	​	​	731	​
Net Cash used in Investing activities	​		(37)	​		(759)	​
​	​		​	​	​	​	​
Cash flows from Financing activities:	​			​			​
Payments of debt issuance costs	​		(2,188)	​		(863)	​
Proceeds from issuance of long-term debt	​	​	48,084	​	​	2,500	​
Proceeds from issuance of warrants	​	​	1,916	​	​	—	​
Repayment of long-term debt	​	​	(60,000)	​	​	(1,200)	​
Payment for debt extinguishment cost	​	​	(4,185)	​	​	—	​
Proceeds from exercises of stock options	​		1	​		—	​
Net Cash (used in) provided by Financing activities	​		(16,372)	​		437	​
Net decrease in Cash and Cash equivalents	​		(38,810)	​		(34,493)	​
Cash and Cash equivalents, Beginning of Period	​		59,677	​		70,340	​
Cash and Cash equivalents, End of Period	​	$	20,867	​	$	35,847	​
​	​	​	​	​	​	​	​
Supplemental disclosure of cash flow information:	​		​	​			​
Cash paid for interest	​	$	4,948	​	$	3,120	​
Transfer of inventory to property and equipment	​	​	92	​	​	—	​
Supplemental disclosure of non-cash investing and financing activities:	​			​			​
Purchases of property and equipment and capitalized software in accounts payable and accrued expenses	​	$	67	​	$	335	​
Reduction of accounts receivable in current and long-term notes receivable	​	$	606	​	$	6,330	​

​

The accompanying notes are an integral part of these unaudited interim financial statements.

​

​

6

Table of Contents

NEURONETICS, INC.

Notes to Interim Financial Statements

(Unaudited)

1.     DESCRIPTION OF BUSINESS

Neuronetics, Inc. (the “Company”) is a commercial stage medical technology company focused on designing, developing and marketing products that improve the quality of life for patients who suffer from neurohealth disorders. The Company’s first commercial product, the NeuroStar Advanced Therapy System, is a non-invasive and non-systemic office-based treatment that uses transcranial magnetic stimulation (“TMS”) to create a pulsed, MRI-strength magnetic field that induces electrical currents designed to stimulate specific areas of the brain associated with mood. The NeuroStar Advanced Therapy System was cleared in 2008 by the United States (“U.S.”) Food and Drug Administration (the “FDA”) to treat adult patients with major depressive disorder (“MDD”) who have failed to achieve satisfactory improvement from prior antidepressant medication in the current MDD episode. It is also cleared by the FDA as an adjunct for adults with obsessive-compulsive disorder (“OCD”), and to decrease anxiety symptoms in adult patients with MDD that may exhibit comorbid anxiety symptoms (anxious depression), and as an adjunct for the treatment of MDD in adolescent patients aged 15-21. The NeuroStar Advanced Therapy System is also available in other parts of the world, including Japan, where it is listed under Japan’s national health insurance. The Company intends to continue to pursue development of its NeuroStar Advanced Therapy System for additional indications.

Liquidity

As of September 30, 2024, the Company had cash and cash equivalents of $20.9 million and an accumulated deficit of $407.1 million. The Company incurred negative cash flows from operating activities of $22.4 million for the nine months ended September 30, 2024 and $32.0 million for the year ended December 31, 2023. The Company has incurred operating losses since its inception, and management anticipates that its operating losses will continue in the near term as the Company continues to invest in sales, marketing and product development activities. The Company’s primary sources of capital to date have been proceeds from its initial public offering (“IPO”), private placements of its convertible preferred securities, borrowings under its credit facility, proceeds from its secondary public offering of common stock and revenues from sales of its products. On July 25, 2024, the Company entered into a Credit Agreement and Guaranty with Perceptive Credit Holdings IV, LP (“Perceptive”) as collateral agent and other lenders defined in the agreement (the “Perceptive Facility”). As of September 30, 2024, the Company had $50.0 million of borrowings outstanding under its credit facility, which has a final maturity on July 25, 2029. The Perceptive Facility is subject to certain financial covenants including a minimum net revenue covenant that escalates over the term of the Perceptive Facility and a minimum liquidity covenant. Our future ability to comply with these financial covenants is subject to risks, including our ability to continue to generate sufficient revenue growth and operating efficiencies to achieve cash flow breakeven. Management believes that the Company’s cash and cash equivalents as of September 30, 2024, anticipated revenues from sales of its products, and operational cash savings from the actions described in “Note 21. Subsequent Events” are sufficient to fund the Company’s operations for at least the next 12 months from the issuance of these financial statements.

​

​

2.     BASIS OF PRESENTATION

The accompanying financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). Any reference in these notes to applicable guidance is meant to refer to U.S. GAAP as found in the Accounting Standards Codification and Accounting Standards Updates (“ASUs”) promulgated by the Financial Accounting Standards Board (the “FASB”).

Interim Financial Statements

The accompanying unaudited interim financial statements have been prepared from the books and records of the Company in accordance with U.S. GAAP for interim financial information and Rule 10-01 of Regulation S-X promulgated by the U.S. Securities and Exchange Commission (the “SEC”), which permit reduced disclosures for interim periods. All adjustments, consisting only of normal recurring adjustments, necessary

7

Table of Contents

NEURONETICS, INC.

Notes to Interim Financial Statements

(Unaudited)

for a fair presentation of the accompanying balance sheets and statements of operations and stockholders’ equity and cash flows have been made. Although these interim financial statements do not include all of the information and footnotes required for complete annual financial statements, management believes the disclosures are adequate to make the information presented not misleading. Unaudited interim results of operations and cash flows for the three and nine months ended September 30, 2024 are not necessarily indicative of the results that may be expected for the full year. Unaudited interim financial statements and footnotes should be read in conjunction with the audited financial statements and footnotes included in the Company’s Annual Report on Form 10-K filed with the SEC on March 8, 2024, wherein a more complete discussion of significant accounting policies and certain other information can be found.

Use of Estimates

The preparation of financial statements in accordance with U.S. GAAP and the rules and regulations of the SEC, requires the use of estimates and assumptions, based on judgments considered reasonable, which affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The Company bases its estimates and assumptions on historical experience, known trends and events and various other factors that management believes to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Although management believes its estimates and assumptions are reasonable when made, they are based upon information available at the time they are made. Management evaluates the estimates and assumptions on an ongoing basis and, if necessary, makes adjustments. Due to the risks and uncertainties involved in the Company’s business and evolving market conditions, and given the subjective element of the estimates and assumptions made, actual results may differ materially from estimated results.

​

3.     SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The Company’s complete summary of significant accounting policies can be found in “Note 3. Summary of Significant Accounting Policies” in the audited financial statements included in the Company’s Annual Report on Form 10-K filed with the SEC on March 8, 2024.

​

4.     RECENT ACCOUNTING PRONOUNCEMENTS

New Accounting Standards Adopted by the Company

In November 2023, the FASB issued ASU 2023-07, Improvements to Reportable Segment Disclosures (“ASU 2023-07”), which requires public companies to disclose for each reportable segment the significant expense categories and amounts for such expenses. ASU 2023-07 is effective for annual periods beginning December 15, 2023, and for interim periods within fiscal years beginning after December 15, 2024. This ASU will be effective for our annual period ended December 31, 2024. The Company believes that the adoption of ASU 2023-07 will not have a material effect on the Company’s financial statements and related disclosures.

In December 2023, the FASB issued ASU 2023-09, Improvements to Income Tax Disclosures (“ASU 2023-09”), which requires public business entities to disclose specific categories in the rate reconciliation and provide additional information for reconciling items that meet a quantitative threshold. ASU 2023-09 is effective for annual periods beginning after December 15, 2024. This ASU will be effective for our annual period ended December 31, 2025. The Company is currently evaluating the impacts of ASU 2023-09 on its disclosures.

Other than the items noted above, there have been no new accounting pronouncements not yet effective or adopted in the current year that we believe have a significant impact, or potential significant impact, to our unaudited interim financial statements.

8

Table of Contents

NEURONETICS, INC.

Notes to Interim Financial Statements

(Unaudited)

​

​

5.     FAIR VALUE MEASUREMENT AND FINANCIAL INSTRUMENTS

The carrying values of cash equivalents, accounts receivable, prepaids and other current assets, and accounts payable on the Company’s balance sheets approximated their fair values as of September 30, 2024 and December 31, 2023 due to their short-term nature. The carrying values of the Company’s credit facility approximated its fair value as of September 30, 2024 and December 31, 2023 due to its variable interest rate. The carrying value of the Company’s notes receivable approximated its fair value as of September 30, 2024 and December 31, 2023 due to their variable interest rates.

Certain of the Company’s financial instruments are measured at fair value using a three-level hierarchy that prioritizes the inputs used to measure fair value. This hierarchy maximizes the use of observable inputs and minimizes the use of unobservable inputs. The three levels of inputs used to measure fair value are as follows:

Level 1:

Inputs are quoted prices for identical instruments in active markets.

Level 2:

Inputs are quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; or model-derived valuations whose inputs are observable or whose significant value drivers are observable.

Level 3:

Inputs are unobservable and reflect the Company’s own assumptions, based on the best information available, including the Company’s own data.

The following tables set forth the carrying amounts and fair values of the Company’s financial instruments as of September 30, 2024 and December 31, 2023 (in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

September 30, 2024

​

​

​

​

​

​

​

​

Fair Value Measurement Based on

​

​

​

​

​

​

​

​

Quoted

​

Significant

​

​

​

​

​

​

​

​

​

​

​

Prices In

​

other

​

Significant

​

​

​

​

​

​

​

​

Active

​

Observable

​

Unobservable

​

​

Carrying

​

​

​

​

Markets

​

Inputs

​

Inputs

​

Amount

Fair Value

(Level 1)

(Level 2)

(Level 3)

Assets

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Money market funds (cash equivalents)

​

$

13,488

​

$

13,488

​

$

13,488

​

$

—

​

$

—

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

December 31, 2023

​

​

​

​

​

​

​

​

Fair Value Measurement Based on

​

​

​

​

​

​

​

​

Quoted

​

Significant

​

​

​

​

​

​

​

​

​

​

​

Prices In

​

other

​

Significant

​

​

​

​

​

​

​

​

Active

​

Observable

​

Unobservable

​

​

Carrying

​

​

​

​

Markets

​

Inputs

​

Inputs

​

​

Amount

​

Fair Value

​

(Level 1)

​

(Level 2)

​

(Level 3)

Assets

​

​

​

​

​

Money market funds (cash equivalents)

​

$

27,507

​

$

27,507

​

$

27,507

​

$

—

​

$

—

​

​

9

Table of Contents

NEURONETICS, INC.

Notes to Interim Financial Statements

(Unaudited)

6.     ACCOUNTS RECEIVABLE

The following table presents the composition of accounts receivable, net, as of September 30, 2024 and December 31, 2023 (in thousands):

​

​	​	​	​	​	​	​	​
​	​	September 30,		​	December 31,		​
​		2024			2023		​
Gross accounts receivable - trade	​	$	18,825	​	$	16,577	​
Less: Allowances for credit losses	​		(2,000)	​		(795)	​
Accounts receivable, net	​	$	16,825	​	$	15,782	​

​

​

​

​

7.     INVENTORY

Inventory is stated at the lower of cost and net realizable value, with cost being determined on a first in, first out basis. The Company’s inventory is primarily comprised of finished goods and work-in-process.

​

​

​

​

​

​

8.     PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE

The following table presents the composition of property and equipment, net, as of September 30, 2024 and December 31, 2023 (in thousands):

​

​	​	​	​	​	​	​	​
​	​	September 30,		​	December 31,		​
​		2024			2023		​
Laboratory equipment	​	$	705	​	$	702	​
Office equipment	​		495	​		495	​
Auto	​	​	23	​	​	23	​
Computer equipment and software	​		1,136	​		1,082	​
Manufacturing equipment	​		575	​		551	​
Leasehold improvements	​		1,463	​		1,436	​
Rental equipment	​		598	​		542	​
Property and equipment, gross	​		4,995	​		4,831	​
Less: Accumulated depreciation	​		(3,356)	​		(2,822)	​
Property and equipment, net	​	$	1,639	​	$	2,009	​

​

As of September 30, 2024 and December 31, 2023, the Company had capitalized software costs, net, of $4.5 million and $4.2 million, respectively, which are included in “Prepaid expenses and other current assets” and “Other assets” on the balance sheet.

Depreciation and amortization expense was $0.5 million for the three months ended September 30, 2024 and 2023, respectively, and $1.6 million and $1.5 million for the nine months ended September 30, 2024 and 2023, respectively.

​

​

9.     NOTES RECEIVABLE

Greenbrook TMS Inc.

On March 31, 2023, the Company entered into a Secured Promissory Note and Guaranty Agreement (the “Promissory Note”) with TMS Neurohealth Centers Inc. (the “Maker”) and Greenbrook TMS Inc. (“Greenbrook”) and its subsidiaries, excluding the Maker (the “Guarantors”), in the principal amount of $6.0 million for a period of four years.

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NEURONETICS, INC.

Notes to Interim Financial Statements

(Unaudited)

Notes receivable outstanding from Greenbrook was $4.0 million and $5.2 million as of September 30, 2024 and December 31, 2023, respectively.

The Promissory Note bears interest at a rate equal to the sum of (a) the floating interest rate of daily secured overnight financing rate as administered by the Federal Reserve Bank of New York on its website (“SOFR”) plus (b) 7.65%.

Pursuant to the terms of the Promissory Note, in the event of an event of default thereunder, the Maker will be required to issue common share purchase warrants to the Company equal to (i) 200% of the unpaid amount of any delinquent amount or payment due and payable under the Promissory Note, together with all outstanding and unpaid accrued interest, fees, charges and costs, divided by (ii) the exercise price of the warrants, which will represent (i) if the Maker’s common shares are traded on the Nasdaq Stock Market (“Nasdaq”), a 20% discount to the 30-day volume-weighted average closing price of Greenbrook’s common shares traded on the Nasdaq prior to the date of issuance (subject to any limitations that may be required by Nasdaq), (ii) if the Maker’s common shares are not then traded on Nasdaq, but are traded on the Toronto Stock Exchange (“TSX”) or another nationally recognized U.S. or Canadian securities exchange, inter-dealer quotation system or over-the-counter market (an “Other Market”), a 20% discount to the 30-day volume-weighted average closing of Greenbrook’s common shares traded on the TSX or Other Market, as elected by the Company, or (iii) if the Maker’s common shares are not traded on any of the above trading markets, a 20% discount to the fair market value of a common share as determined pursuant to the Promissory Note.

Under the Promissory Note and related loan documents, the Maker and the Guarantors have granted to the Company a security interest in substantially all of the Maker’s and the Guarantors’ assets and the Guarantors have guaranteed the Maker’s obligations under the Promissory Note. The Company’s security interest pursuant to the Promissory Note and related loan documents ranks pari passu with the Maker’s senior lender, Madryn Fund Administration, LLC, and is subject to an intercreditor agreement.

Interest income recognized by the Company related to notes receivable was $0.1 million and $0.2 million for the three months ended September 30, 2024 and 2023. Interest income recognized by the Company related to notes receivable was $0.5 million and $0.4 million for the nine months ended September 30, 2024 and 2023, respectively, and is included within “Other income, net” on the statements of operations.

​

​

10.     LEASES

Lessee:

The Company has operating leases for its corporate headquarters, a training facility and office equipment, including copiers. The Company leases an approximately 32,000 square foot facility in Malvern, Pennsylvania for its corporate headquarters, which includes office and warehouse space. The Company leases an approximately 9,600 square foot facility in Charlotte, North Carolina as a training facility for its NeuroStar Advanced Therapy Systems. The Company does not currently have any finance leases or executed leases that have not yet commenced.

Operating lease rent expense was $0.2 million for the three months ended September 30, 2024 and 2023, and $0.6 million for the nine months ended September 30, 2024 and 2023. As of September 30, 2024, the weighted-average remaining lease term of operating leases was 3.3 years and the weighted-average discount rate was 7.2%.

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Notes to Interim Financial Statements

(Unaudited)

The following table presents the supplemental cash flow information as a lessee related to leases (in thousands):

​

​	​	​	​	​	​	​	​
​		Nine Months Ended					​
​	​	September 30, 2024			September 30, 2023		​
Cash paid for amounts included in the measurement of lease liabilities:		​			​		​
Operating cash flows from operating leases	​	$	827	​	$	807	​

​

The following table sets forth by year the required future payments of operating lease liabilities (in thousands):

​

​	​	​	​	​
​	​	September 30, 2024		​
Remainder of 2024	​	$	221	​
2025	​	​	898	​
2026	​		921	​
2027	​		882	​
2028	​		116	​
Total lease payments	​		3,038	​
Less imputed interest	​		(343)	​
Present value of operating lease liabilities	​	$	2,695	​

​

Lessor sales-type leases:

Certain customers have purchased NeuroStar Advanced Therapy Systems on a rent-to-own basis. The lease term is three or four years with a customer option to purchase the NeuroStar Advanced Therapy System at the end of the lease or automatic transfer of ownership of the NeuroStar Advanced Therapy System at the end of the lease.

The following table sets forth the profit recognized on sales-type leases (in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Three Months Ended September 30,

​

Nine Months Ended September 30,

​

​

2024

2023

2024

2023

​

Profit recognized at commencement, net

​

$

21

​

$

13

​

$

45

​

$

60

​

Interest income

​

—

​

—

​

—

​

—

​

Total sales-type lease income

​

$

21

​

$

13

​

$

45

​

$

60

​

​

The following table sets forth a maturity analysis of the undiscounted lease receivables related to sales-type leases (in thousands):

​

​	​	​	​	​
​		September 30, 2024		​
Remainder of 2024	​	$	232	​
2025	​	​	402	​
2026	​		78	​
Total sales-type lease receivables	​	$	712	​

​

As of September 30, 2024, the carrying amount of the lease receivables is $0.7 million. The Company does not have any unguaranteed residual assets.

Lessor operating leases:

​

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NEURONETICS, INC.

Notes to Interim Financial Statements

(Unaudited)

NeuroStar Advanced Therapy Systems sold for which collection is not probable are accounted for as operating leases. For the three months ended September 30, 2024 and 2023, the Company recognized operating lease income of $0.04 million and $0.02 million, respectively. For the nine months ended September 30, 2024 and 2023, the Company recognized operating lease income of $0.1 million.

The Company maintained rental equipment, net, of $0.3 million as of September 30, 2024 and December 31, 2023, which are included in “Property and equipment, net” on the balance sheet. Rental equipment depreciation expense was $0.02 million for the three months ended September 30, 2024 and 2023, and $0.07 million and $0.07 million for the nine months ended September 30, 2024 and 2023, respectively.

​

11.     PREPAID COMMISSION EXPENSE

The Company pays a commission on both NeuroStar Advanced Therapy System sales and treatment session sales. Since the commission paid for system sales is not commensurate with the commission paid for treatment sessions, the Company capitalizes commission expense associated with NeuroStar Advanced Therapy System sales commissions paid that is incremental to specifically anticipated future treatment session orders. In developing this estimate, the Company considered its historical treatment session sales and customer retention rates, as well as technology development life cycles and other industry factors. These costs are periodically reviewed for impairment.

NeuroStar Advanced Therapy System commissions are deferred and amortized on a straight-line basis over a seven year period equal to the average customer term, which the Company deems to be the expected period of benefit for these costs.

On the Company’s balance sheets, the current portion of capitalized contract costs is represented by the “Current portion of prepaid commission expense”, while the long-term portion is included in “Prepaid commission expense”. Amortization expense was $0.7 million and $0.6 million for the three months ended September 30, 2024 and 2023, respectively, and $2.1 million and $1.7 million for the nine months ended September 30, 2024 and 2023, respectively.

​

12.     ACCRUED EXPENSES

The following table presents the composition of accrued expenses as of September 30, 2024 and December 31, 2023 (in thousands):

​

​	​	​	​	​	​	​
​		September 30,			December 31,
​	​	2024		​	2023
Compensation and related benefits	​	$	6,769	​	$	8,003
Consulting and professional fees	​		1,702	​		488
Research and development expenses	​		556	​		260
Sales and marketing expenses	​	​	397	​	​	1,760
Warranty	​		237	​		213
Sales and other taxes payable	​		714	​		818
Other	​		1,054	​		1,053
Accrued expenses	​	$	11,429	​	$	12,595

​

​

13.     REVENUE AND DEFERRED REVENUE

Payment terms typically require payment upon shipment or installation of the NeuroStar Advanced Therapy System and additional payments as access codes for treatment sessions are delivered, which can span several years after the NeuroStar Advanced Therapy System is first delivered and installed. The timing of revenue recognition compared to billings and cash collections typically results in accounts receivable.

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Notes to Interim Financial Statements

(Unaudited)

However, sometimes customer advances and deposits may be required for certain customers and are recorded as contract liabilities (deferred revenue). For multi-year agreements, the Company generally invoices customers annually at the beginning of each annual coverage period and recognizes revenue over the term of the coverage period.

As of September 30, 2024, the Company expects to recognize approximately the following percentages of deferred revenue by year:

​

​	​	​	​
​		Revenue
Year:	​	Recognition
Remainder of 2024	​	43	%
2025		54	%
2026		2	%
2027		1	%
Total		100	%

​

Revenue recognized for the three months ended September 30, 2024 and 2023 that was included in the contract liability balance at the beginning of the year was $0.3 million and $0.4 million, respectively. Revenue recognized for the nine months ended September 30, 2024 and 2023 that was included in the contract liability balance at the beginning of the year was $1.4 million and $1.7 million, respectively, and primarily represented revenue earned from separately priced extended warranties, customer deposits, milestone revenue, and clinical training.

Customers

Significant customers are those that represent more than 10% of the Company’s total revenue. For the three months ended September 30, 2024 and 2023, one customer accounted for 13% and 15% of the Company’s revenue, respectively. For the nine months ended September 30, 2024 and 2023, one customer accounted for 14% and 17% of the Company’s revenue, respectively.

Accounts receivable outstanding related to that customer was $1.9 million as of September 30, 2024 and December 31, 2023.

​

Notes receivable outstanding related to that customer was $4.0 million and $5.2 million as of September 30, 2024 and December 31, 2023, respectively.

​

Geographical information

The following geographic data includes revenue generated from the Company’s third-party distributors. The Company’s revenue was generated in the following geographic regions and by product line for the periods indicated (in thousands):

​

​	​	​	​	​	​	​	​	​	​	​	​
​	​	Revenues by Geography
​	​	Three Months Ended September 30,
​	​	2024				​	2023
​	​	​	​	​	% of	​	​	​	​	% of
​	​	Amount		​	Revenues	​	Amount		​	Revenues
​	​	(in thousands, except percentages)									​
U.S.		$	17,922		97	%	$	17,211		96	%
International	​		608		3	%		673		4	%
Total revenues	​	$	18,530		100	%	$	17,884		100	%

​

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NEURONETICS, INC.

Notes to Interim Financial Statements

(Unaudited)

​	​	​	​	​	​	​	​	​	​	​	​
​	​	U.S. Revenues by Product Category
​	​	Three Months Ended September 30,
​	​	2024				​	2023
​	​	​	​	​	% of	​	​		​	% of
​		Amount			Revenues		Amount			Revenues
​		(in thousands, except percentages)									​
NeuroStar Advanced Therapy System	​	$	4,108	​	23	%	$	3,597	​	21	%
Treatment sessions	​		13,326		74	%		13,060		76	%
Other	​		488		3	%		554		3	%
Total U.S. revenues	​	$	17,922		100	%	$	17,211		100	%

​

​	​	​	​	​	​	​	​	​	​	​	​
​	​	International Revenues by Product Category
​	​	Three Months Ended September 30,
​	​	2024				​	2023
​	​	​	​	​	% of	​	​	​	​	% of
​		Amount			Revenues		Amount			Revenues
​		(in thousands, except percentages)									​
NeuroStar Advanced Therapy System	​	$	244		40	%	$	258		38	%
Treatment sessions	​		90		15	%		280		42	%
Other	​		274		45	%		135		20	%
Total international revenues	​	$	608		100	%	$	673		100	%

​

​	​	​	​	​	​	​	​	​	​	​	​
​	​	Revenues by Geography
​	​	Nine Months Ended September 30,
​	​	2024				​	2023
​	​	​	​	​	% of	​	​	​	​	% of
​	​	Amount		​	Revenues	​	Amount		​	Revenues
​	​	(in thousands, except percentages)									​
U.S.		$	50,845		97	%	$	49,464		97	%
International	​		1,552		3	%		1,570		3	%
Total revenues	​	$	52,397		100	%	$	51,034		100	%

​

​	​	​	​	​	​	​	​	​	​	​	​
​	​	U.S. Revenues by Product Category
​	​	Nine Months Ended September 30,
​	​	2024				​	2023
​	​	​	​	​	% of	​	​		​	% of
​		Amount			Revenues		Amount			Revenues
​		(in thousands, except percentages)									​
NeuroStar Advanced Therapy System	​	$	11,418	​	22	%	$	11,936	​	24	%
Treatment sessions	​		37,974		75	%		36,018		73	%
Other	​		1,453		3	%		1,510		3	%
Total U.S. revenues	​	$	50,845		100	%	$	49,464		100	%

​

​	​	​	​	​	​	​	​	​	​	​	​
​	​	International Revenues by Product Category
​	​	Nine Months Ended September 30,
​	​	2024				​	2023
​	​	​	​	​	% of	​	​	​	​	% of
​		Amount			Revenues		Amount			Revenues
​		(in thousands, except percentages)									​
NeuroStar Advanced Therapy System	​	$	502		32	%	$	573		36	%
Treatment sessions	​		400		26	%		589		38	%
Other	​		650		42	%		408		26	%
Total International revenues	​	$	1,552		100	%	$	1,570		100	%

​

​

​

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NEURONETICS, INC.

Notes to Interim Financial Statements

(Unaudited)

14.     DEBT

The following table presents the composition of debt as of September 30, 2024 and December 31, 2023 (in thousands):

​	​	​	​	​	​	​	​
​	​	September 30,		​	December 31,		​
​		2024			2023		​
Outstanding principal	​	$	50,000	​	$	60,000	​
Accrued final payment fees	​		—	​		1,856	​
Less debt discounts	​		(3,998)	​		(2,573)	​
Total debt, net	​		46,002	​		59,283	​
Less current portion	​		—	​		—	​
Long-term debt, net	​	$	46,002	​	$	59,283	​

​

For the three months ended September 30, 2024, the Company recognized interest expense of $1.7 million, of which $1.6 million was cash and $0.1 million was non-cash interest expense related to the amortization of deferred debt issuance costs and accrual of final payment fees. For the three months ended September 30, 2023, the Company recognized interest expense of $1.2 million, of which $1.1 million was cash and $0.1 million was non-cash interest expense related to the amortization of deferred debt issuance costs and accrual of final payment fees.

For the nine months ended September 30, 2024, the Company recognized interest expense of $5.5 million, of which $4.9 million was cash and $0.6 million was non-cash interest expense related to the amortization of deferred debt issuance costs and accrual of final payment fees. For the nine months ended September 30, 2023, the Company recognized interest expense of $3.6 million, of which $3.1 million was cash and $0.5 million was non-cash interest expense related to the amortization of deferred debt issuance costs and accrual of final payment fees.

Loss on extinguishment of debt amounting to $4.4 million was recorded during the three months ended September 30, 2024, related to the SLR Facility. This included $1.2 million of early prepayment fees and $3.2 million of deferred financing expense related to extinguishment of debt.

Perceptive Credit Facility

On July 25, 2024, the Company entered into the Perceptive Facility which was used to partially repay the Company’s previous $60.0 million credit facility with SLR Investment Corp.

​

The Perceptive Facility permits the Company to borrow up to an aggregate amount of $90.0 million in three tranches of term loans, a “Tranche 1 Loan”, a “Tranche 2 Loan” and a “Tranche 3 Loan.” On July 25, 2024, the Company borrowed an aggregate amount of $50.0 million, which was the aggregate amount available under the Tranche 1 Loan portion of the Perceptive Facility. Under the Tranche 2 Loan portion of the Perceptive Facility, the Company is permitted to borrow, at its election, up to an aggregate amount of $15.0 million, (i) upon the Company achieving a specified amount of trailing twelve months net revenue, and (ii) assuming there has been no event of default under the Perceptive Facility prior to such election. The Tranche 2 Loan portion of the Perceptive Facility must be borrowed on or before December 31, 2025. Under the Tranche 3 Loan portion of the Perceptive Facility, the Company may request to borrow, at the consent of the Majority Lenders (as defined in the Perceptive Facility), up to an aggregate amount of $25.0 million. The Tranche 3 Loan portion of the Perceptive Facility must be borrowed on or before June 30, 2026. There will be no scheduled repayments of the principal on the Tranche 1 Loan, Tranche 2 Loan and Tranche 3 Loan prior to the maturity date. All amounts borrowed under the Perceptive Facility are due on July 25, 2029.

​

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NEURONETICS, INC.

Notes to Interim Financial Statements

(Unaudited)

Each of the Tranche 1 Loan, Tranche 2 Loan and Tranche 3 Loan accrues interest from the date of borrowing through the date of repayment at a floating per annum rate of interest equal to the sum of 7.00% plus the greater of (a) 4.50% and (b) One-Month Term SOFR (as defined in the Perceptive Facility).

​

If the Company prepays either the Tranche 1 Loan, Tranche 2 Loan or Tranche 3 Loan prior to their scheduled maturity date, the Company will also be required to pay prepayment fees to Perceptive equal to 6% of the principal amount of such term loan then-prepaid if prepaid on or before the first anniversary of the closing date, 5% of the principal amount of such term loan then-prepaid if prepaid after the first anniversary and on or before the second anniversary of the closing date, 4% of the principal amount of such term loan then-prepaid if prepaid after the second anniversary and on or before the third anniversary of the closing date, and 3% of the principal amount of such term loan then-prepaid if prepaid after the third anniversary and on or before the fourth anniversary of the closing date.

​

The Company’s obligations under the Perceptive Facility are secured by a first priority security interest in substantially all of the Company’s assets, including its intellectual property. The Perceptive Facility requires the Company to comply with a quarterly minimum trailing revenue covenant commencing December 2024 and a minimum liquidity covenant as well as affirmative and negative covenants.

​

The Perceptive Facility contains events of default, including, without limitation, events of default upon: (i) failure to make payment pursuant to the terms of the agreement; (ii) violation of covenants; (iii) material adverse changes to the Company’s business; (iv) insolvency; (v) material cross-defaults; (vi) significant judgments, orders or decrees for payments by the Company; (vii) incorrectness of representations and warranties; (viii) significant adverse ERISA events; (ix) failure by the Company to be registered with the United States Securities and Exchange Commission in good standing; and (x) failure by the Company to maintain a valid and perfected lien on the collateral securing the borrowing.

​

As consideration for the Perceptive Facility, the Company agreed to issue to Perceptive warrants to purchase up to 1,462,500 shares of the Company’s common stock, with a warrant exercisable into 1,125,000 shares of the Company’s common stock issued on the closing date (the “Initial Warrant”). The per share exercise price for the Initial Warrant is equal to the lower of (x) the 10-day volume weighted average price of the Company’s common stock on the business day immediately prior to the closing date and (y) the 10-day volume weighted average price of the common stock ended on August 31, 2024. In addition to the Initial Warrant, an additional warrant will be issued for 337,500 shares of common stock concurrently with the borrowing of the Tranche 2 Loan. The per share exercise price for the additional warrant will be equal to the exercise price of the Initial Warrant. Each warrant will be exercisable, in whole or in part, until the tenth anniversary of the applicable date of issuance.

The Company was in compliance with the covenants under the Perceptive Facility at September 30, 2024.

SLR Credit Facility

On March 2, 2020 the Company entered into a Loan and Security Agreement with Solar Investment Corp. (formerly known as Solar Capital Ltd) (“SLR”) as collateral agent and other lenders as defined in the agreement (such agreement, as amended, the “SLR Facility”).

On March 7, 2024, the Company entered into a sixth amendment (the “SLR Sixth Amendment”) to the SLR Facility. Under the SLR Sixth Amendment, SLR: (a) waived the specified events with respect to the Company’s non-compliance with the required revenue under the net product revenue covenant; and (b) amended the financial covenants and increased the amount of the liquidity covenant and temporarily decreased the net product revenue covenant to reflect current projections.

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NEURONETICS, INC.

Notes to Interim Financial Statements

(Unaudited)

On September 29, 2023, the Company entered into a fifth amendment (the “SLR Fifth Amendment”) to the SLR Facility. The SLR Fifth Amendment allowed the Company to draw on the $22.5 million Term C Loan portion of the SLR Facility and revised the required testing levels of the net product revenue and minimum liquidity covenants for certain testing periods. On October 3, 2023, the Company borrowed $22.5 million under the Term C Loan portion of the SLR Facility, resulting in total borrowing of $60 million.

On March 29, 2023, the Company entered into a fourth amendment (the “SLR Fourth Amendment”) to the Loan and Security Agreement dated March 2, 2020 with SLR. The SLR Fourth Amendment increased the borrowings by $2.5 million, extended the interest only period from March 2023 to March 2026, and extended the maturity date from February 2025 to March 2028. In addition, the SLR Fourth Amendment changed the basis of the interest expense from LIBOR to SOFR.

The SLR Facility accrued interest from the date of borrowing through the date of repayment at a floating per annum rate of interest, which reset monthly and was equal to the greater of 5.65% plus (a) 3.95% or (b) daily simple SOFR for a term of one month. Only interest was required to be paid on the SLR Facility until March 1, 2026. Prior to the effectiveness of the SLR Fourth Amendment, the interest only period with respect to the Term A Loan expired on March 1, 2023. Commencing April 1, 2026, the Company was required to make monthly payments of principal and interest on the SLR Facility.

In addition to the principal and interest payments due under the SLR Facility, the Company was required to pay a final payment fee to SLR upon the earlier of prepayment, acceleration or the maturity date of the SLR Facility equal to 4.95% of the principal amount of the term loans actually funded. If the Company prepaid the SLR Facility prior to their respective scheduled maturities, the Company was also be required to pay prepayment fees to SLR equal to 3% of the principal amount of such term loan then-prepaid if prepaid on or before the first anniversary of the Term C Funding Date (as defined in the SLR Facility), 2% of the principal amount of such term loan then-prepaid if prepaid after the first anniversary and on or before the second anniversary of the Term C Funding Date, or 1% of the principal amount of such term loan then-prepaid if prepaid after the second anniversary of the Term C Funding Date.

The Company was also required to pay SLR an exit fee upon the occurrence of (a) any liquidation, dissolution or winding up of the Company, (b) any transaction that results in a person obtaining control over the Company, (c) the Company achieving $100 million in trailing twelve-month net product revenue or (d) the Company achieving $125 million in trailing twelve-month net product revenue. The exit fee for liquidation, dissolution, winding up or change of control of the Company was equal to 2% of the principal amount of the term loans actually funded. The exit fee for achieving either $100 million or $125 million in trailing twelve-month net product revenue was equal to 1% of the principal amount of the term loans actually funded or, if both net product revenue milestones were achieved, 2% of the principal amount of the term loans actually funded. The exit fee was capped at 2% of the principal amount of the term loans actually funded.

On January 31, 2024 and February 29, 2024, the Company was not in compliance with its minimum net product revenue covenant under the SLR Facility. The Company was granted a waiver from SLR in the SLR Sixth Amendment for the covenant violations. The amount of borrowings affected by this noncompliance was $60 million.

As of June 30, 2024, the Company was not in compliance with its minimum net product revenue covenant under the SLR Facility. The amount of borrowing affected by this noncompliance was $60 million.

As previously disclosed on the Company’s Current Report on Form 8-K filed on July 30, 2024, simultaneously with the Company’s entry into the Perceptive Facility, on July 25, 2024, the Company prepaid in full all outstanding obligations under and terminated the SLR Facility. In connection with this prepayment, the Company paid total consideration of $64.6 million, which consisted of (i) $60.0 million of remaining principal amount outstanding, (ii) $0.5 million of accrued and unpaid interest, (iii) $3.0 million in connection with the

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NEURONETICS, INC.

Notes to Interim Financial Statements

(Unaudited)

final payment fee, and (iv) $1.2 million in connection with the prepayment fee. The Company funded the prepayment of the SLR Facility using proceeds from the Perceptive Facility and cash on hand.

​

​

15.     COMMON STOCK

Common Stock

The following table summarizes the total number of shares of the Company’s common stock issued and reserved for issuance as of September 30, 2024 and December 31, 2023 (in thousands):

​

​	​	​	​	​	​
​		September 30, 2024		December 31, 2023	​
Shares of common stock issued		30,317		29,092	​
Shares of common stock reserved for issuance for:					​
Common stock warrants outstanding		1,146		41	​
Stock options outstanding		1,238		1,270	​
Restricted stock units outstanding		3,274		3,360	​
Shares available for grant under stock incentive plans		852		978	​
Shares available for sale under employee stock purchase plan		1,624		1,335	​
Total shares of common stock issued and reserved for issuance		38,451		36,076	​

​

Common Stock Warrants

During the three and nine months ended September 30, 2024, the Company issued 1,125,000 warrants as stated within “Note 14. Debt”.

​

The following tables summarizes the Company’s outstanding common stock warrants as of September 30, 2024, and December 31, 2023:

​

​	​	​	​	​	​
September 30, 2024			​
Warrants			​
Outstanding	​	​	​	​	​
(in thousands)	​	Exercise Price		​	Expiration Date
1,125	​	$	0.94	​	July-2034
21	​	$	9.73		Dec-2024
1,146	​

​

​

​	​	​	​	​	​
December 31, 2023			​
Warrants			​
Outstanding	​	​	​	​	​
(in thousands)	​	Exercise Price		​	Expiration Date
20	​	$	9.73		Mar-2024
21	​	$	9.73		Dec-2024
41	​

​

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NEURONETICS, INC.

Notes to Interim Financial Statements

(Unaudited)

The Company valued warrants issued during the three and nine months ended September 30, 2024 using the Black-Scholes option pricing model using the following assumptions:

​

​	​	​	​	​
​		2024
Estimated fair value of common stock	​	$	1.61	​
Exercise price	​	$	1.92	​
Expected term (in years)	​		9.4	​
Risk-free interest rate	​		4.2	%
Expected volatility	​		88.0	%
Dividend yield	​		—	%

​

​

​

​

​

​

​

​

16.     LOSS PER SHARE

The Company’s basic loss per common share is computed by dividing the net loss by the weighted-average number of shares of common stock outstanding during the period. The Company’s restricted stock awards (non-vested shares) are issued and outstanding at the time of grant but are excluded from the Company’s computation of weighted-average shares outstanding in the determination of basic loss per share until vesting occurs.

A net loss cannot be diluted, so when the Company is in a net loss position, basic and diluted loss per common share are the same. If the Company achieves profitability in the future, the denominator of a diluted earnings per common share calculation will include both the weighted average number of shares outstanding and the number of common stock equivalents, if the inclusion of such common stock equivalents would be dilutive. Dilutive common stock equivalents potentially include warrants, stock options, non-vested restricted stock units and non-vested performance restricted stock units (“PRSUs”) using the treasury stock method, along with the effect, if any, from the potential conversion of outstanding securities, such as convertible preferred stock.

The following potentially dilutive securities outstanding as of September 30, 2024 and 2023 have been excluded from the denominator of the diluted loss per share of common stock outstanding calculation (in thousands):

​

​	​	​	​	​	​
​	​	September 30,			​
​		2024		2023	​
Stock options	​	1,238	​	1,271	​
Non-vested PRSUs		395		395	​
Non-vested restricted stock units		2,879		3,239	​
Common stock warrants		1,146		41	​

​

​

​

17.     SHARE-BASED COMPENSATION

The amount of share-based compensation expense recognized by the Company by location in its statements of operations for the three and nine months ended September 30, 2024 and 2023 is as follows (in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Three Months Ended September 30,

​

Nine Months Ended September 30,

​

​

​

2024

2023

2024

2023

​

Cost of revenues

​

$

35

​

$

38

​

$

106

​

​

109

​

Sales and marketing

​

380

​

590

​

1,089

​

​

1,946

​

General and administrative

​

807

​

1,052

​

2,560

​

​

3,134

​

Research and development

​

197

​

175

​

565

​

​

504

​

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NEURONETICS, INC.

Notes to Interim Financial Statements

(Unaudited)

Total

​

$

1,419

​

$

1,855

​

$

4,320

​

$

5,693

​

​

2018 Equity Incentive Plan

In June 2018, the Company adopted the 2018 Equity Incentive Plan, (the “2018 Plan”), which authorized the issuance of up to 1.4 million shares, subject to an annual 4% increase based on the number of shares of common stock outstanding, in the form of restricted stock, stock appreciation rights and stock options to the Company’s directors, employees and consultants. The amount and terms of grants are determined by the Company’s board of directors. All stock options granted to date have had exercise prices equal to the fair value, as determined by the closing price as reported by the Nasdaq Global Market, of the underlying common stock on the date of grant. The contractual term of stock options is up to 10 years, and stock options are exercisable in cash or as otherwise determined by the board of directors. Generally, stock options vest 25% upon the first anniversary of the date of grant and the remainder ratably monthly thereafter for 36 months. Restricted stock units generally vest ratably in three equal installments on the first, second and third anniversaries of the grant date. PRSUs generally vest based on appreciation of the Company’s common stock to a certain price as determined by the Company’s board of directors measured using a trailing 30-day volume-weighted average price of a share of the Company’s common stock. The fair value of the PRSU awards are determined using a risk neutral Monte Carlo simulation valuation model. As of September 30, 2024, there were 0.7 million shares available for future issuance under the 2018 Plan.

2020 Inducement Incentive Plan

In December 2020, the Company adopted the 2020 Inducement Incentive Plan (the “2020 Plan”), which authorized the issuance of up to 0.4 million shares, subject to increase by approval of the Company’s board of directors, in the form of stock options, stock appreciation rights, restricted stock awards, restricted stock unit awards, performance stock awards and other stock awards to eligible employees who satisfy the standards for inducement grants under Nasdaq Global Market rules. In March 2022, the Company’s board of directors approved an additional 0.5 million shares for the issuance under the 2020 Plan. An individual who previously served as an employee or director of the Company is not eligible to receive awards under the 2020 Plan. The amount and terms of grants are determined by the Company’s board of directors. As of September 30, 2024, there were 0.1 million shares available for future issuance under the 2020 Plan.

Stock Options

The following table summarizes the Company’s stock option activity for the nine months ended September 30, 2024:

​

​	​	​	​	​	​	​	​	​	​	​
​					​		Weighted		Aggregate
​	​	Number of	​	Weighted		​	average	​	average
​	​	Shares under	​	average		​	Remaining	​	Intrinsic
​	​	Option	​	Exercise Price		​	Contractual	​	Value
​	​	(in thousands)	​	per Option		​	Life (in years)	​	(in thousands)
Outstanding at December 31, 2023		1,270	​	$	3.90		​		​	​
Granted		—	​	$	—				​
Exercised		(2)	​	$	0.96		​		​
Forfeited and Expired		(30)	​	$	9.97				​
Outstanding at September 30, 2024		1,238	​	$	3.75		5.3		$	—
Exercisable at September 30, 2024		1,238	​	$	3.75		5.3		$	—
Vested and expected to vest at September 30, 2024		1,238	​	$	3.75		5.3		$	—

​

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NEURONETICS, INC.

Notes to Interim Financial Statements

(Unaudited)

The Company recognized share-based compensation expense related to stock options of $0.0 million and $0.1 million for the three months ended September 30, 2024 and 2023, respectively, and $0.1 million and $0.3 million for the nine months ended September 30, 2024 and 2023, respectively. As of September 30, 2024, there was no remaining unrecognized compensation cost related to non-vested stock options.

For the nine months ended September 30, 2024 the Company did not grant stock options.

Restricted Stock Units and PRSUs

The following table summarizes the Company’s restricted stock unit and PRSU activity for September 30, 2024:

​

​	​	​	​	​	​	​	​	​	​	​
​		Non-vested		​	Weighted		Non-vested		​	Weighted
​	​	Restricted	​	​	average	​	PRSUs	​	​	average
​	​	Stock Units	​	​	Grant-date	​	​	​	​	Grant-date
​	​	(in thousands)	​	​	Fair Value	​	(in thousands)	​	​	Fair Value
Non-vested at December 31, 2023	​	2,965	​	$	4.37		395	​	$	6.77
Granted		1,593	​	$	3.18		—	​	$	—
Vested		(1,406)	​	$	4.35		—	​	$	—
Forfeited		(273)	​	$	4.21		—	​	$	—
Non-vested at September 30, 2024		2,879	​	$	3.74		395	​	$	6.77

​

The Company recognized $1.4 million and $1.8 million in share-based compensation expense related to the restricted stock units and PRSUs for the three months ended September 30, 2024 and 2023, respectively, and $4.2 million and $5.3 million for the nine months ended September 30, 2024 and 2023, respectively. As of September 30, 2024, there was $7.4 million of unrecognized compensation cost related to non-vested restricted stock units and PRSUs, which the Company expects to recognize over a weighted-average period of 1.9 years. The total fair value at the vesting date of restricted stock units and PRSUs vested during the nine months ended September 30, 2024 was $4.3 million.

The Company did not grant PRSUs during the nine months ended September 30, 2024.

​

​

18.     COMMITMENTS AND CONTINGENCIES

Legal Matters

The Company is subject from time to time to various claims and legal actions arising during the ordinary course of its business. Management believes that there are currently no claims or legal actions that would reasonably be expected to have a material adverse effect on the Company’s results of operations, financial condition, or cash flows.

​

19.     SEGMENT INFORMATION

Operating segments are defined as components of an enterprise about which separate discrete information is available for evaluation by the chief operating decision maker, or decision-making group, in deciding how to allocate resources and in assessing performance. The Company currently operates in one business segment as it is managed and operated as one business. A single management team that reports to the chief operating decision maker comprehensively manages the entire business. The Company does not operate any material separate lines of business or separate business entities with respect to its products or product development.

​

​

​

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NEURONETICS, INC.

Notes to Interim Financial Statements

(Unaudited)

20.     GOVERNMENT ASSISTANCE

Employee Retention Credit

​

The Coronavirus Aid, Relief and Economic Security Act provided an Employee Retention Credit (the “ERC”), which was a refundable tax credit related to certain payroll taxes. The Company applied the grant model and determined that the criteria for recognition of the ERC was met during the year ended December 31, 2023 based on the Company’s determination of eligibility and filing of the ERC claim. As of September 30, 2024, the $2.9 million ERC receivable is reported within “Prepaid expenses and other current assets” on the Company’s balance sheets.

​

21.     SUBSEQUENT EVENTS

​

On October 3, 2024, the Company received a deficiency letter from the Nasdaq Listing Qualifications Department of The Nasdaq Stock Market LLC (the “Staff”) notifying the Company that, for the 30 consecutive business days prior to such letter, the closing bid price for the Company’s common stock had been below the minimum $1.00 per share required for continued listing on The Nasdaq Global Market pursuant to Nasdaq Listing Rule 5450(a)(1) (the “Minimum Bid Price Requirement”).

​

In accordance with Nasdaq Listing Rule 5810(c)(3)(A), the Company has been given until April 1, 2025 to regain compliance with the Minimum Bid Price Requirement. If at any time before April 1, 2025, the bid price of the Company’s common stock closes at $1.00 per share or more for a minimum of 10 consecutive business days, the Staff will provide written confirmation that the Company has achieved compliance.

​

If the Company does not regain compliance with the Minimum Bid Price Requirement by April 1, 2025, the Company may be afforded a second 180 calendar day period to regain compliance. To qualify, the Company would be required to transfer to The Nasdaq Capital Market and meet the continued listing requirement for market value of publicly held shares and all other initial listing standards for The Nasdaq Capital Market, except for the Minimum Bid Price Requirement. In addition, the Company would be required to notify Nasdaq of its intent to cure the deficiency during the second compliance period. Following a transfer to The Nasdaq Capital Market, the Company will be afforded a second 180 calendar day period to regain compliance, unless it does not appear to Nasdaq that it is possible for the Company to cure the deficiency. If the Company does not regain compliance with the Minimum Bid Price Requirement by the end of the compliance period (or the second compliance period, if applicable), the Company’s common stock will become subject to delisting. In the event that the Company receives notice that its common stock is being delisted, the Nasdaq listing rules permit the Company to appeal a delisting determination by the Staff to a hearings panel.

​

The Company intends to monitor the closing bid price of its common stock and may, if appropriate, consider available options to regain compliance with the Minimum Bid Price Requirement, including initiating a reverse stock split. However, there can be no assurance that the Company will be able to regain compliance with the Minimum Bid Price Requirement or will otherwise be in compliance with other Nasdaq listing rules.

​

On November 8, 2024, Greenbrook Shareholders approved the Greenbrook Arrangement Resolution and Neuronetics Stockholders approved the Neuronetics Charter Amendment Proposal and Neuronetics Share Issuance Proposal (as such terms are defined in the Company’s Definitive Proxy Statement on Schedule 14A filed on October 4, 2024).

​

On November 8, 2024, the Company implemented a strategic reorganization to sharpen the Company’s focus on growth. This reorganization resulted in a workforce reduction of approximately 10% and will focus the Company’s commercial strategy on the highest growth drivers. The reorganization will also improve operational efficiency, with anticipated post-reorganization annualized cash savings of more than $3.5 million.

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NEURONETICS, INC.

Notes to Interim Financial Statements

(Unaudited)

The Company expects to recognize approximately $0.4 million in total expenses for severance and related benefits for employees impacted by the reduction in force, consisting primarily of severance payments and related benefits. The Company may also incur other charges or cash expenditures not currently contemplated due to events that may occur as a result of, or associated with, the reduction in force.

​

​

​

​

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Item 2.     Management’s Discussion and Analysis of Financial Condition and Results of Operations.

The following discussion and analysis of our financial condition and results of operations, as well as other sections in this Quarterly Report on Form 10-Q, should be read in conjunction with our unaudited interim financial statements and related notes thereto included elsewhere herein. In addition to historical financial information, some of the information contained in the following discussion and analysis contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”) and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). All statements other than statements of historical facts, including statements regarding our future results of operations and financial position, business strategy, current and prospective products, product approvals, research and development costs, current and prospective collaborations, timing and likelihood of success, plans and objectives of management for future operations and future results of current and anticipated products, are forward-looking statements. These statements involve known and unknown risks, uncertainties and other important factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements.

In some cases, you can identify forward-looking statements by terms such as “may,” “will,” “would,” “should,” “expect,” “plan,” “design,” “anticipate,” “could,” “intend,” “target,” “project,” “contemplate,” “believe,” “estimate,” “predict,” “potential,” “outlook” or “continue” or the negative of these terms or other similar expressions. The forward-looking statements in this Quarterly Report on Form 10-Q are only predictions. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our business, financial condition and results of operations. These forward-looking statements speak only as of the date of this Quarterly Report on Form 10-Q and are subject to a number of risks, uncertainties and assumptions described in “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our Annual Report on Form 10-K filed with the SEC on March 8, 2024.These risks and uncertainties include, without limitation, risks and uncertainties related to: the effect of the Arrangement with Greenbrook, initially announced on August 11, 2024 and approved by the Greenbrook Shareholders and Neuronetics Stockholders on November 8, 2024, on our business relationships, operating results and business generally;

our ability to achieve or sustain profitable operations due to our history of losses; our reliance on the sale and usage of our NeuroStar Advanced Therapy System to generate revenues; the scale and efficacy of our salesforce; availability of coverage and reimbursement from third-party payors for treatments using our products; physician and patient demand for treatments using our products; developments in respect of competing technologies and therapies for the indications that our products treat; product defects; our revenue has been concentrated among a small number of customers; our ability to obtain and maintain intellectual property protection for our technology; developments in clinical trials or regulatory review of the NeuroStar Advanced Therapy System for additional indications; developments in regulation in the U.S. and other applicable jurisdictions; the terms of our credit facility; our ability to successfully roll-out our Better Me Provider Program on the planned timeline; our self-sustainability and existing cash balances; and our ability to achieve cash flow break-even in the fourth quarter of 2024 and on a full-year basis in 2025. The events and circumstances reflected in our forward-looking statements may not be achieved or occur and actual results could differ materially from those projected in the forward-looking statements. The Company cautions investors not to place undue reliance on these forward-looking statements. Moreover, we operate in an evolving environment. New risk factors and uncertainties may emerge from time to time, and it is not possible for us to predict all risk factors and uncertainties. Except as required by applicable law, we do not plan to publicly update or revise any forward-looking statements contained in this Quarterly Report on Form 10-Q as a result of any new information, future events or changed circumstances or otherwise.

Overview

We are a commercial stage medical technology company focused on designing, developing and marketing products that improve the quality of life for patients who suffer from neurohealth disorders. Our first commercial product, the NeuroStar Advanced Therapy System, is a non-invasive and non-systemic office-

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based treatment that uses TMS to create a pulsed, MRI-strength magnetic field that induces electrical currents designed to stimulate specific areas of the brain associated with mood. The NeuroStar Advanced Therapy System is cleared by the FDA to treat adult patients with MDD that have failed to achieve satisfactory improvement from prior antidepressant medication in the current MDD episode. It is also cleared by the FDA as an adjunct for adults with OCD, and to decrease anxiety symptoms in adult patients with MDD that may exhibit comorbid anxiety symptoms (anxious depression), and as an adjunct for the treatment of MDD in adolescent patients aged 15-21. The NeuroStar Advanced Therapy System is safe, clinically effective, reproducible and precise and we believe is supported by the largest clinical data set of any competing TMS system. We believe we are the market leader in TMS therapy based on over 188,662 global patients treated with over 6.9 million of our treatment sessions through September 30, 2024. We generated revenues of $18.5 million and $17.9 million for the three months ended September 30, 2024 and 2023, respectively, and $52.4 million and $51.0 million for the nine months ended September 30, 2024 and 2023, respectively.

We designed the NeuroStar Advanced Therapy System as a non-invasive therapeutic alternative to treat patients who suffer from MDD and to address many of the key limitations of other treatment options. We generate revenues from initial capital sales of our systems, recurring treatment sessions, service and repair and extended warranty contracts. We derive the majority of our revenues from recurring treatment sessions. For the three months ended September 30, 2024, revenues from sales of our treatment sessions and NeuroStar Advanced Therapy Systems represented 74% and 23% of our U.S. revenues, respectively, and for the three months ended September 30, 2023 revenues from sales of our treatment sessions and NeuroStar Therapy Systems represented 76% and 21% of our U.S. revenues, respectively. For the nine months ended September 30, 2024, revenues from sales of our treatment sessions and NeuroStar Advanced Therapy Systems represented 75% and 22% of our U.S. revenues, respectively, and for the nine months ended September 30, 2023 revenues from sales of our treatment sessions and NeuroStar Therapy Systems represented 73% and 24% of our U.S. revenues, respectively.

We currently sell our NeuroStar Advanced Therapy System and recurring treatment sessions in the U.S. with the collaborative support of our 201 employees as of September 30, 2024. Symphony Health estimates that there are approximately 26,300 group and solo practice sites in the U.S. with psychiatrists that prescribe antidepressant medications. Our direct sales force primarily targets 53,000 psychiatrists at 26,300 psychiatric practices that treat approximately 13.9 million patients based on data from the Journal of the American Medical Association. Some of our customers have purchased or may purchase more than one NeuroStar Advanced Therapy System. Based on our commercial data, we believe our customers can recoup their initial capital investment in our system by providing a standard course of treatment to approximately 12 patients. We believe our customers can generate approximately $8,500 of average revenue per patient for a standard course of treatment, which may provide meaningful incremental income to their practices. We have a diverse customer base, including psychiatrists in group psychiatric practices, pain management physicians and other medical professionals in the U.S. For the three and nine months ended September 30, 2024, one customer accounted for more than 10% of our revenues.

We market our products in a few select markets outside the U.S. through independent distributors. International revenues represented 3% and 4% of our total revenues for the three months ended September 30, 2024 and 2023, respectively and 3% for the nine months ended September 30, 2024 and 2023. We received regulatory approval for our system in Japan in September 2017. We obtained reimbursement coverage for the NeuroStar Advanced Therapy System in Japan, which went into effect on June 1, 2019 and covers patients who are treated in the largest inpatient and outpatient psychiatric facilities in Japan. We expect our international revenues to be consistent as a percentage of our total revenue.

Our research and development efforts are focused on hardware and software product developments, enhancements of our NeuroStar Advanced Therapy System, and clinical development relating to additional indications. We outsource the manufacture of components of our NeuroStar Advanced Therapy Systems that are produced to our specifications, and individual components are either shipped directly from our third-party

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contract manufacturers to our customers or consolidated into pallets at our Malvern, Pennsylvania facility prior to shipment. Final installation of these systems occurs at the customer site.

Total revenues increased by $0.6 million, or 4%, from $17.9 million for the three months ended September 30, 2023 to $18.5 million for the three months ended September 30, 2024 and increased by $1.4 million, or 3%, from $51.0 million for the nine months ended September 30, 2023 to $52.4 million for the nine months ended September 30, 2024.

For the three months ended, September 30, 2024, our U.S revenue was $17.9 million, compared to $17.2 million for the three months ended September 30, 2023, which represents an increase of 4% period over period. The increase was primarily attributable to an increase in U.S. treatment sessions and U.S NeuroStar Advanced Therapy System sales period over period.

For the nine months ended September 30, 2024, our U.S. revenue was $51.0 million, compared to $49.5 million for nine months ended September 30, 2023, which represents an increase of 3% period over period. The increase was primarily attributable to an increase in U.S. treatment sessions period over period.

We incurred net losses of $13.3 million and $31.0 million for the three and nine months ended September 30, 2024 compared to net losses of $9.4 million and $24.8 million for three and nine months ended September 30, 2023. As we continue to reduce our expenses we expect to lower our losses and reach profitability in the upcoming years. As of September 30, 2024, we had an accumulated deficit of $407.1 million.

Greenbrook Acquisition

On August 11, 2024, the Company and Greenbrook entered into an arrangement agreement (the “Arrangement Agreement”), pursuant to which the Company agreed to acquire all of the issued and outstanding common shares of Greenbrook (each a “Greenbrook Share”) pursuant to a plan of arrangement (the “Plan of Arrangement”) under the Business Corporations Act (Ontario) (the “Arrangement”).

Subject to the terms and conditions set forth in the Arrangement Agreement and the Plan of Arrangement, each Greenbrook Share outstanding immediately prior to the effective time of the Arrangement (other than the shares held by Greenbrook Shareholders who have exercised rights of dissent in respect of the Arrangement) would be transferred to the Company in exchange for such number of shares of the Company’s Common Stock, as provided for in the Arrangement Agreement.

On November 8, 2024, Greenbrook Shareholders approved the Greenbrook Arrangement Resolution and Neuronetics Stockholders approved the Neuronetics Charter Amendment Proposal and Neuronetics Share Issuance Proposal (as such terms are defined in the Company’s Definitive Proxy Statement on Schedule 14A filed on October 4, 2024). Subject to the terms and conditions set forth in the Arrangement Agreement and the Plan of Arrangement, the Company and Greenbrook intend to consummate the Arrangement upon the satisfaction of the conditions precedent to closing.

Global Economic Conditions

We are continuing to closely monitor macroeconomic impacts, including, but not limited to inflationary and potential recessionary pressures, on our business, results of operations and financial results. We currently believe these conditions have no material impact.

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Components of Our Results of Operations

Revenues

We have generated revenues primarily from the capital portion of our business and related sales and rentals of the NeuroStar Advanced Therapy System and the recurring revenues from our sale of treatment sessions in the U.S.

NeuroStar Advanced Therapy System Revenues. NeuroStar Advanced Therapy System revenues consist primarily of sales or rentals of a capital component, including equipment upgrades to the initial sale of the NeuroStar Advanced Therapy System. NeuroStar Advanced Therapy Systems can be purchased outright or on a rent-to-own basis by certain customers.

Treatment Session Revenues. Treatment session revenues primarily include sales of NeuroStar treatment sessions and SenStar treatment links. The NeuroStar treatment sessions are access codes that are delivered electronically in the U.S. The SenStar treatment links are disposable units containing single-use access codes that are sold and used outside the U.S. Access codes are purchased separately by our customers, primarily on an as-needed basis, and are required by the NeuroStar Advanced Therapy System in order to deliver treatment sessions.

Other Revenues. Other revenues are derived primarily from service and repair and extended warranty contracts with our existing customers.

We refer you to the section titled “Critical Accounting Policies and Use of Estimates—Revenue Recognition” in our Annual Report on Form 10-K filed with the SEC on March 8, 2024. We also refer you to “Note 3. Summary of Significant Accounting Policies” in Notes to Interim Financial Statements located in Part I – FINANCIAL INFORMATION, Item 1. Financial Statements.

Cost of Revenues and Gross Margin

Cost of revenues primarily consists of the costs of components and products purchased from our third-party contract manufacturers of our NeuroStar Advanced Therapy Systems as well as the cost of treatment packs for individual treatment sessions. We use third-party contract manufacturing partners to produce the components for and assemble the completed NeuroStar Advanced Therapy Systems. Cost of revenues also includes costs related to personnel, warranty, shipping, and our operations and field service departments. We expect our cost of revenues to increase to the extent our revenues grow.

Our gross profit is calculated by subtracting our cost of revenues from our revenues. We calculate our gross margin as our gross profit divided by our revenues. Our gross margin has been and will continue to be affected by a variety of factors, primarily product sales mix, pricing and third-party contract manufacturing costs. Our gross margins on revenues from sales of NeuroStar Advanced Therapy Systems are lower than our gross margins on revenues from sales of treatment sessions and, as a result, the sales mix between NeuroStar Advanced Therapy Systems and treatment sessions can affect the gross margin in any reporting period.

Sales and Marketing Expenses

Sales and marketing expenses consist of market research and commercial activities related to the sale of our NeuroStar Advanced Therapy Systems and treatment sessions and salaries and related benefits, sales commissions and share-based compensation for employees focused on these efforts. Other significant sales and marketing costs include conferences and trade shows, promotional and marketing activities, including direct and online marketing, practice support programs and radio media campaigns, co-op marketing, travel, training expenses and bad debt expense.

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We anticipate that our sales and marketing expenses will remain materially consistent during 2024 compared to 2023, within this category our reduced personnel and marketing program expense have been offset by increases related to bad debt expense.

General and Administrative Expenses

General and administrative expenses consist primarily of personnel expenses, including salaries and related benefits, share-based compensation and travel expenses, for employees in executive, finance, information technology, legal and human resource functions. General and administrative expenses also include the cost of insurance, outside legal fees, accounting and other consulting services, audit fees from our independent registered public accounting firm, board of directors’ fees and other administrative costs, such as corporate facility costs, including rent, utilities, depreciation and maintenance not otherwise included in cost of revenues.

We anticipate that our general and administrative expenses will increase from 2023 mainly due to legal and professional fees in connection with our proposed transaction with Greenbrook (the “Greenbrook Acquisition”).

Research and Development Expenses

Research and development expenses consist primarily of personnel expenses, including salaries and related benefits and share-based compensation for employees in clinical development, product development, regulatory and quality assurance functions, as well as expenses associated with outsourced professional scientific development services and costs of investigative sites and consultants that conduct our preclinical and clinical development programs. We typically use our employee, consultant and infrastructure resources across our research and development programs.

​

Interest Expense

Interest expense consists of cash interest payable under our credit facility and non-cash interest attributable to the accrual of final payment fees and the amortization of deferred financing costs related to our indebtedness.

Loss on extinguishment of debt

Loss on debt extinguishment consist of prepayment penalties and impairment of deferred financing costs associated with the extinguishment of debt, as well as fees incurred with third parties in connection with debt extinguishment.

Other Income, Net

Other income, net consists primarily of interest income earned on our money market account balances and notes receivable.

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Results of Operations

Comparison of the three months ended September 30, 2024 and 2023

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Three Months Ended

​

​

​

​

​

​

​

September 30,

​

Increase / (Decrease)

​

​

2024

2023

Dollars

Percentage

​

​

(in thousands, except percentages)

Revenues

​

$

18,530

​

$

17,884

​

$

646

4

%

Cost of revenues

​

4,529

​

6,120

​

(1,591)

(26)

%

Gross Profit

​

14,001

​

11,764

​

2,237

19

%

Gross Margin

​

75.6

%

65.8

%

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Operating expenses:

​

​

​

​

​

Sales and marketing

​

11,877

​

12,141

​

(264)

(2)

%

General and administrative

​

7,436

​

6,339

​

1,097

17

%

Research and development

​

2,416

​

2,155

​

261

12

%

Total operating expenses

​

21,729

​

20,635

​

1,094

​

5

%

Loss from Operations

​

(7,728)

​

​

(8,871)

​

1,143

13

%

Other (income) expense:

​

​

​

​

​

​

Interest expense

​

1,725

​

1,184

​

541

46

%

Loss on extinguishment of debt

​

4,427

​

—

​

4,427

100

%

Other income, net

​

(539)

​

(664)

​

125

(19)

%

Net Loss

​

$

(13,341)

​

$

(9,391)

​

$

(3,950)

(42)

%

​

​	​	​	​	​	​	​	​	​	​	​	​
​	​	Revenues by Geography
​	​	Three Months Ended September 30,
​	​	2024				​	2023
​	​	​	​	​	% of	​	​	​	​	% of
​		Amount			Revenues		Amount			Revenues
​	​	(in thousands, except percentages)
U.S.	​	$	17,922	​	97	%	$	17,211	​	96	%
International	​		608		3	%		673		4	%
Total revenues	​	$	18,530		100	%	$	17,884		100	%

​

​	​	​	​	​	​	​	​	​	​	​	​
​	​	U.S. Revenues by Product Category
​	​	Three Months Ended September 30,
​	​	2024				​	2023
​	​	​	​	​	% of	​	​	​	​	% of
​		Amount			Revenues		Amount			Revenues
​	​	(in thousands, except percentages)
NeuroStar Advanced Therapy System	​	$	4,108	​	23	%	$	3,597	​	21	%
Treatment sessions	​		13,326		74	%		13,060		76	%
Other	​		488		3	%		554		3	%
Total U.S. revenues	​	$	17,922		100	%	$	17,211		100	%

​

Revenues

Total revenue for the three months ended September 30, 2024 was $18.5 million, an increase of 4% compared to the three months ended September 30, 2023 revenue of $17.9 million. During the quarter, total U.S. revenue increased by 4% and international revenue decreased marginally compared to prior year quarter. The increase in U.S. revenue was primarily attributable to an increase in U.S. treatment sessions and U.S. NeuroStar Advanced Therapy System sales period over period.

U.S. NeuroStar Advanced Therapy System revenue for the three months ended September 30, 2024 was $4.1 million, an increase of 14% compared to the three months ended September 30, 2023 revenue of $3.6

30

Table of Contents

million. For the three months ended September 30, 2024 and 2023, the Company sold 48 and 43 systems, respectively, that were recognized as NeuroStar Advanced Therapy System capital revenue during each period. Increase in U.S. NeuroStar Advanced Therapy System revenue is mainly due to the increase in the sales price of the systems.

U.S. treatment session revenue for the three months ended September 30, 2024 was $13.3 million, an increase of 2% compared to the three months ended September 30, 2023 revenue of $13.1 million. The increase in revenue was primarily attributable to an increase in treatment session volume over the prior year quarter.

Cost of Revenues and Gross Margin

Cost of revenues decreased by $1.6 million, or 26%, from $6.1 million for the three months ended September 30, 2023 to $4.5 million for the three months ended September 30, 2024. Gross margin increased from 65.8% for the three months ended September 30, 2023 to 75.6% for the three months ended September 30, 2024. The increase in gross margin was primarily a result of the change in product mix, the absence of one-time manufacturing cost by our new contract manufacturer and inventory impairment incurred in 2023.

Sales and Marketing Expenses

Sales and marketing expenses decreased by $0.2 million, or 2%, from $12.1 million for the three months ended September 30, 2023 to $11.9 million for the three months ended September 30, 2024. The decrease was primarily due to lower headcount partially offset by an increase in bad debt expense.

General and Administrative Expenses

General and administrative expenses increased by $1.1 million, or 17% from $6.3 million for the three months ended September 30, 2023 to $7.4 million for the three months ended September 30, 2024. The increase was primarily due to an increase in legal costs and professional fees in connection with the Greenbrook Acquisition.

Research and Development Expenses

Research and development expenses increased by $0.2 million, or 12%, from $2.2 million for the three months ended September 30, 2023 to $2.4 million for the three months ended September 30, 2024. The increase was primarily due to software maintenance expense for previously released software.

Interest Expense

Interest expense increased by $0.5 million, or 46%, from $1.2 million for the three months ended September 30, 2023, to $1.7 million for the three months ended September 30, 2024 due increases in interest rates.

Loss on extinguishment of debt

Loss on extinguishment of debt amounting to $4.4 million was recorded during the three months ended September 30, 2024, related to the SLR Facility. This included $1.2 million of early prepayment fees and $3.2 million of deferred financing expense related to extinguishment of debt.

Other Income, Net

Other income, net decreased by $0.1 million, or 19%, from $0.6 million for the three months ended September 30, 2023 to $0.5 million for the three months ended September 30, 2024, primarily as a result of decreased interest income earned on the Company’s money market accounts.

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Table of Contents

Comparison of the nine months ended September 30, 2024 and 2023

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Nine Months Ended

​

​

​

​

​

​

​

​

September 30,

​

Increase / (Decrease)

​

​

​

2024

2023

Dollars

Percentage

​

​

​

(in thousands, except percentages)

​

Revenues

​

$

52,397

​

$

51,034

​

$

1,363

3

%

​

Cost of revenues

​

13,129

​

15,100

​

(1,971)

(13)

%

​

Gross Profit

​

39,268

​

35,934

​

3,334

9

%

​

Gross Margin

​

74.9

%

70.4

%

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Operating expenses:

​

​

​

​

​

​

Sales and marketing

​

35,820

​

35,602

​

218

1

%

​

General and administrative

​

19,540

​

19,151

​

389

2

%

​

Research and development

​

6,999

​

7,308

​

(309)

(4)

%

​

Total operating expenses

​

62,359

​

62,061

​

298

0

%

​

Loss from Operations

​

(23,091)

​

(26,127)

​

3,036

12

%

​

Other (income) expense:

​

​

​

​

​

​

Interest expense

​

5,529

​

3,580

​

1,949

54

%

​

Loss on extinguishment of debt

​

4,427

​

—

​

4,427

100

%

​

Other income, net

​

(2,001)

​

(4,895)

​

2,894

59

%

​

Net Loss

​

$

(31,046)

​

$

(24,812)

​

$

(6,234)

(25)

%

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Revenues by Geography

​

​

​

Nine Months Ended September 30,

​

​

​

2024

​

2023

​

​

​

​

​

​

% of

​

​

​

​

% of

​

​

Amount

Revenues

Amount

Revenues

​

​

​

(in thousands, except percentages)

​

United States

​

$

50,845

​

97

%

$

49,464

​

97

%

​

International

​

1,552

3

%

1,570

3

%

​

Total revenues

​

$

52,397

100

%

$

51,034

100

%

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

U.S. Revenues by Product Category

​

​

​

Nine Months Ended September 30,

​

​

​

2024

​

2023

​

​

​

​

​

​

% of

​

​

​

​

% of

​

​

Amount

Revenues

Amount

Revenues

​

​

​

(in thousands, except percentages)

​

NeuroStar Advanced Therapy System

​

$

11,418

​

22

%

$

11,936

​

24

%

​

Treatment sessions

​

37,974

75

%

36,018

73

%

​

Other

​

1,453

3

%

1,510

3

%

​

Total U.S. revenues

​

$

50,845

100

%

$

49,464

100

%

​

​

32

Table of Contents

Total revenue for the nine months ended September 30, 2024 was $52.4 million, an increase of 3% compared to the nine months ended September 30, 2023 revenue of $51.0 million. During the nine months ended September 30, 2024, total U.S. revenue increased by 3% and international revenue decreased by 1%. The increase in U.S. revenue was primarily attributable to an increase in U.S. treatment sessions sales period over period. The decrease in international revenue was primarily driven by a decrease in treatment session sales and NeuroStar Advanced Therapy System sales period over period.

U.S. NeuroStar Advanced Therapy System revenue for the nine months ended September 30, 2024 was $11.4 million, a decrease of $0.5 million compared to the nine months ended September 30, 2023 revenue of $11.9 million. For the nine months ended September 30, 2024 and 2023, the Company sold 137 and 146 systems, respectively, that were recognized as NeuroStar Advanced Therapy System capital revenue during each period. Additionally, for the nine months ended September 30, 2024 the Company executed 1 operating lease agreement, which contributed to operating lease revenue.

U.S. treatment session revenue for the nine months ended September 30, 2024 was $38.0 million, an increase of 5% compared to the nine months ended September 30, 2023 revenue of $36.0 million. The revenue growth was primarily driven by an increase in treatment session volume and utilization over the comparative period.

Cost of Revenues and Gross Margin

Cost of revenues decreased by $2.0 million, or 13%, from $15.1 million for the nine months ended September 30, 2023 to $13.1 million for the nine months ended September 30, 2024. Gross margin increased from 70.4% for the nine months ended September 30, 2023 to 74.9% for the nine months ended September 30, 2024. The increase in gross margin was primarily a result of increased sales volume of our treatment session sales resulting in a more favorable product mix, absence of one-time manufacturing cost by our new contract manufacturer and inventory impairment incurred in 2023.

Sales and Marketing Expenses

Sales and marketing expenses increased by $0.2 million, or 1%, from $35.6 million for the nine months ended September 30, 2023 to $35.8 million for the nine months ended September 30, 2024. The increase was primarily driven by higher bad debt expense.

General and Administrative Expenses

General and administrative expenses increased by $0.4 million, or 2% from $19.2 million for the nine months ended September 30, 2023 to $19.6 million for the nine months ended September 30, 2024. The increase was primarily due to an increase in legal costs and professional fees in connection with the Greenbrook Acquisition.

Research and Development Expenses

Research and development expenses decreased by $0.3 million, or 4%, from $7.3 million for the nine months ended September 30, 2023 to $7.0 million for the nine months ended September 30, 2024. The decrease in research and development was primarily due to higher capitalization of product development costs related to certain of the Company’s software project costs.

Interest Expense

Interest expense increased by $1.9 million from $3.6 million for the nine months ended September 30, 2023 to $5.5 million for the nine months ended September 30, 2024 due to increases in interest rates.

33

Table of Contents

Loss on extinguishment of debt

Loss on extinguishment of debt amounting to $4.4 million was recorded during the three months ended September 30, 2024, related to the SLR Facility. This included $1.2 million of early prepayment fees and $3.2 million of deferred financing expense related to extinguishment of debt.

Other Income, Net

Other income, net decreased by $2.9 million from $4.9 million for the nine months ended September 30, 2023 to $2.0 million for the nine months ended September 30, 2024, primarily as a result of ERC of $2.9 million recorded for the nine months ended September 30, 2023 and decreased interest income earned on the Company’s money market accounts, which was partially offset by increase in notes receivable interest.

Liquidity and Capital Resources

Overview

As of September 30, 2024, we had cash and cash equivalents of $20.9 million and an accumulated deficit of $407.1 million, compared to cash and cash equivalents of $59.7 million and an accumulated deficit of $376.1 million as of December 31, 2023. We incurred negative cash flows from operating activities of $22.4 million and $34.2 million for the nine months ended September 30, 2024 and 2023, respectively. We have incurred operating losses since our inception, and we anticipate that our operating losses will lessen in the near term as we adjust our sales and marketing initiatives, research and development activities and other corporate initiatives. The Company’s primary sources of capital to date have been proceeds from its IPO, private placements of its convertible preferred securities, borrowings under its credit facility, proceeds from its secondary public offering of common stock and revenues from sales of its products. As of September 30, 2024, the Company had $50.0 million of borrowings outstanding under its credit facility, which has a final maturity in July 2029. Management believes that the Company’s cash and cash equivalents as of September 30, 2024 and anticipated revenues from sales of its products are sufficient to fund the Company’s operations for at least 12 months from the issuance of these financial statements.

If our cash and cash equivalents and anticipated revenues from sales or our products are insufficient to satisfy our liquidity requirements, we may seek to sell additional common equity or seek to sell preferred equity or debt securities or enter into a new credit facility or another form of third-party funding or seek other debt financing. If we raise additional funds by issuing equity or equity-linked securities, our stockholders would experience dilution and any new equity securities could have rights, preferences and privileges superior to those of holders of our common stock. Debt financing, if available, may involve covenants restricting our operations or our ability to incur additional debt. We cannot be assured that additional equity, equity-linked or debt financing will be available on terms favorable to us or our stockholders, or at all. It is also possible that we may allocate significant amounts of capital towards products or technologies for which market demand is lower than expected and, as a result, abandon such efforts. If we are unable to maintain our current financing or obtain adequate additional financing when we require it, or if we obtain financing on terms which are not favorable to us, or if we expend capital on products or technologies that are unsuccessful, our ability to continue to support our business growth and to respond to business challenges could be significantly limited, or we may be required to delay the development, commercialization and marketing of our products.

Our current and future funding requirements will depend on many factors, including:

●

our ability to achieve revenue growth and improve operating margins;

●

compliance with the terms and conditions, including covenants, set forth in our credit facility;

●

the cost of expanding our operations and offerings, including our sales and marketing efforts;

34

Table of Contents

●

our ability to improve or maintain coverage and reimbursement arrangements with domestic and international third-party and government payors;

●

our rate of progress in establishing coverage and reimbursement arrangements from international commercial third-party and government payors;

●

our rate of progress in, and cost of the sales and marketing activities associated with, establishing adoption of our products and maintaining or improving our sales to our current customers;

●

the cost of research and development activities, including research and development relating to additional indications of neurohealth disorders;

●

the effect of competing technological and market developments;

●

costs related to international expansion;

●

the potential cost of and delays in product development as a result of any regulatory oversight applicable to our products; and

●

the consummation of the Greenbrook Acquisition.

As of September 30, 2024, there were no significant changes to our material cash requirements as set forth in our Annual Report on Form 10-K filed with the SEC on March 8, 2024 outside of the Company prepaying the Solar Facility in July 2024 and obtaining new financing through the Perceptive Facility. The principal payment associated with the Perceptive Facility will be paid in July 2029.

Cash Flows

The following table sets forth a summary of our cash flows for the nine months ended September 30, 2024 and 2023:

​

​	​	​	​	​	​	​
​	​	Nine Months Ended September 30,
​		2024			2023
​	​	(in thousands)
Net Cash used in Operating activities	​	$	(22,401)	​	$	(34,171)
Net Cash used in Investing activities	​		(37)	​		(759)
Net Cash (used in) provided by Financing activities	​		(16,372)	​		437
Net (Decrease) in Cash and Cash Equivalents	​	$	(38,810)	​	$	(34,493)

​

Net Cash used in Operating activities

Net cash used in operating activities for the nine months ended September 30, 2024 was $22.4 million, consisting primarily of a net loss of $31.0 million and an increase in net operating assets of $4.6 million, offset by non-cash charges of $8.8 million and a loss on extinguishment of debt of $4.4 million. The increase in net operating assets was primarily due to decreases in accrued expenses related to the final payment fee to SLR, payment of our 2024 bonus accrued as of December 31, 2023 and increases in our accounts receivable offset by lower inventory levels from the prior year. Non-cash charges primarily consisted of depreciation and amortization, loss on extinguishment related to the SLR Facility, allowance for credit losses and share-based compensation.

Net cash used in operating activities for the nine months ended September 30, 2023 was $34.2 million, consisting primarily of a net loss of $24.8 million and an increase in net operating assets of $19.3 million, partially offset by non-cash charges of $9.9 million. The increase in net operating assets was primarily due to increases in accounts receivable, the ERC and a decrease in accrued expense. Non-cash charges consisted

35

Table of Contents

of depreciation and amortization, inventory impairment, non-cash interest expense and share-based compensation.

​

Net Cash used in Investing activities

Net cash used in investing activities for the nine months ended September 30, 2024 was $0.04 million, which was attributable to purchases of property and equipment and capitalized software costs, partially offset by the repayment of notes receivable.

Net cash used in investing activities for the nine months ended September 30, 2023 was $0.8 million, which was attributable to purchase of property and equipment and capitalized software costs, partially offset by the repayment of notes receivable.

​

Net Cash (used in) provided by Financing activities

Net cash used in financing activities for the nine months ended September 30, 2024 was $16.4 million and primarily consisted of the repayment of the SLR Facility, proceeds from the Perceptive Facility and payment of debt issuance costs related to the Perceptive Facility.

Net cash provided by financing activities for the nine months ended September 30, 2023 was $0.4 million and primarily consisted of the additional debt net of the final payment and amendment fee paid in connection with the SLR Fourth Amendment.

Indebtedness

For information regarding the Perceptive Facility, refer to “Note 14. Debt” in Notes to Interim Financial Statements located in Part I – FINANCIAL INFORMATION, Item 1. Financial Statements.

Recent Accounting Pronouncements

We refer you to “Note 3. Summary of Significant Accounting Policies” and “Note 4. Recent Accounting Pronouncements” in Notes to Interim Financial Statements located in Part I – FINANCIAL INFORMATION, Item 1. Financial Statements.

​

Item 3.     Quantitative and Qualitative Disclosures About Market Risk.

We refer you to the information described in “Item 7A. Quantitative and Qualitative Disclosures About Market Risk” section of the Company’s Annual Report on Form 10-K filed with the SEC on March 8, 2024. There have been no material changes to our market risk described therein.

We continue to monitor inflationary factors, such as increases in our cost of revenues and operating expenses that may adversely affect our operating results. Although we do not believe inflation has had a material impact on our financial condition, results of operations or cash flows to date, a high rate of inflation in the future may have an adverse effect on our ability to maintain and increase our gross margin or decrease our operating expenses as a percentage of our revenues if the selling prices of our products do not increase as much or more than our costs increase.

​

36

Table of Contents

Item 4.     Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

The term “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) of the Exchange Act, refers to controls and procedures that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosure. As required by Rules 13a-15(b) and 15d-15(b) of the Exchange Act, our management, with the participation of our Principal Executive Officer and Principal Financial and Accounting Officer, evaluated the effectiveness of our disclosure controls and procedures as of the end of the period covered by this Quarterly Report on Form 10-Q. Based on that evaluation, our Principal Executive Officer and our Principal Financial and Accounting Officer concluded that our disclosure controls and procedures were effective at the reasonable assurance level as of September 30, 2024.

Changes in Internal Control over Financial Reporting

During the quarter ended September 30, 2024, there were no changes in our internal control over financial reporting (as defined in Rule 13a-15(f) of the Exchange Act) which materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

​

37

Table of Contents

PART II—OTHER INFORMATION

Item 1.     Legal Proceedings.

We are subject from time to time to various claims and legal actions arising during the ordinary course of our business. We believe that there are currently no claims or legal actions that would reasonably be expected to have a material adverse effect on our results of operations, financial condition, or cash flows.

​

Item 1A.     Risk Factors.

You should carefully consider the information described in the “Risk Factors” section of the Company’s Annual Report on Form 10-K filed with the SEC on March 8, 2024. There have been no material changes to the risk factors described therein.

​

The Company’s failure to meet the continued listing requirements of Nasdaq could result in a delisting of the Company’s common stock.

On October 3, 2024, the Company received a deficiency letter from the Staff notifying the Company that, for the 30 consecutive business days prior to such letter, the closing bid price for the Company’s common stock had been below the Minimum Bid Price Requirement.

​

In accordance with Nasdaq Listing Rule 5810(c)(3)(A), the Company was given 180 calendar days, or until April 1, 2025, to regain compliance with the Minimum Bid Price Requirement. If at any time before April 1, 2025, the bid price of the Company’s common stock closes at $1.00 per share or more for a minimum of 10 consecutive business days, the Staff will provide written confirmation that the Company has achieved compliance.

​

If the Company fails to regain compliance with the Minimum Bid Price Requirement or fails to satisfy another continued listing requirements of Nasdaq, Nasdaq may take steps to delist the Company’s common stock, which could have a materially adverse effect on the Company’s ability to raise additional funds as well as the price and liquidity of the Company’s common stock. Such a delisting would likely have a negative effect on the price of the Company’s common stock, would impair the Company’s ability to sell or purchase the Company’s common stock when it wishes to do so, could place restrictions on the Company’s operating flexibility and subject the Company to potential default under the Perceptive Facility. In the event of a delisting, the Company could not provide assurances that any action taken by the Company to restore compliance with listing requirements would allow the Company’s common stock to become listed again, stabilize the market price or improve the liquidity of the Company’s common stock, prevent the Company’s common stock from dropping below the Minimum Bid Price Requirement, or prevent future non-compliance with Nasdaq’s listing requirements.

​

​

Item 2.     Unregistered Sales of Equity Securities and Use of Proceeds.

Not applicable.

​

Item 3.     Defaults Upon Senior Securities.

Not applicable.

​

Item 4.     Mine Safety Disclosures.

Not applicable.

38

Table of Contents

​

Item 5.     Other Information.

Not applicable.

​

Item 6.     Exhibits.

The following is a list of exhibits filed as part of this Quarterly Report on Form 10-Q. Where so indicated, exhibits that were previously filed are incorporated by reference. For exhibits incorporated by reference, the location of the exhibit in the previous filing is indicated.

39

Table of Contents

​			​		​
Exhibit Number					Description
​			​		​
2.1	​			Arrangement Agreement by and between Neuronetics and Greenbrook dated August 11, 2024 (incorporated by reference to Exhibit 2.1 to the Registrant’s Current Report on Form 8-K filed on August 13, 2024)
4.1	​			Form of Warrant (incorporated by reference to Exhibit 4.1 to the Registrant’s Current Report on Form 8-K filed on July 30, 2024)
4.2	​			Form of Note (incorporated by reference to Exhibit 4.2 to the Registrant’s Current Report on Form 8-K filed on July 30, 2024)
4.3	​			Form of Security Agreement (incorporated by reference to Exhibit 4.3 to the Registrant’s Current Report on Form 8-K filed on July 30, 2024)
10.1◊			​		Sixth Amendment to Loan and Security Agreement, dated March 7, 2024, by and among SLR Investment Corp. (formerly known as Solar Capital Ltd.), as collateral agent, the lenders listed on the signature pages thereto, and Neuronetics, Inc. (incorporated by reference to Exhibit 10.9*◊ to the Registrant’s Current Report on Form 10-K filed on March 8, 2024).
10.2◊		​			Secured Promissory Note and Guaranty Agreement, dated March 31, 2023, by and among TMS Neurohealth Centers Inc., as maker, Greenbrook TMS Inc. and its subsidiaries, excluding TMS Neurohealth Centers Inc., as guarantors, and Neuronetics, Inc. (incorporated by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K filed on April 4, 2023).
10.3◊		​			Credit Agreement and Guaranty dated, July 25, 2024, by and among Neuronetics, Inc., the Subsidiary Guarantors from time to time parties thereto, Perceptive Credit Holdings IV, LP, and each other lender that may from time to time become a party thereto (incorporated by reference to the Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on July 30, 2024).
10.4◊		​			Form of Voting and Support Agreement by and between Neuronetics and certain Greenbrook Locked-Up Shareholders dated August 11, 2024 (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on August 13, 2024)
10.5◊		​			Form of Voting and Support Agreement by and between Neuronetics and certain Greenbrook Locked-Up Shareholders dated August 11, 2024 (incorporated by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K filed on August 13, 2024)
10.6◊		​			Form of Voting and Support Agreement by and between Neuronetics and certain Greenbrook Locked-Up Shareholders dated August 11, 2024 (incorporated by reference to Exhibit 10.3 to the Registrant’s Current Report on Form 8-K filed on August 13, 2024)
10.7◊		​			Form of Registration Rights Agreement by and between Neuronetics and Investor dated August 11, 2024 (incorporated by reference to Exhibit 10.4 to the Registrant’s Current Report on Form 8-K filed on August 13, 2024)
10.8		​			Amendment to the Registration Rights Agreement by and between Neuronetics and Investor dated November 1, 2024 (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed November 1, 2024)
31.1*			​		Certification of the Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2*			​		Certification of the Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1**			​		Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2**			​		Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS		​			Inline XBRL Instance Document – the instance document does not appear in the Interactive Data File because iXBRL tags are embedded within the Inline XBRL document.
101.SCH		​			Inline XBRL Taxonomy Extension Schema Document
101.CAL		​			Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF		​			Inline XBRL Taxonomy Extension Definition Linkbase Document

40

Table of Contents

101.LAB		​			Inline XBRL Taxonomy Extension Label Linkbase Document
101.PRE		​			Inline XBRL Taxonomy Extension Presentation Linkbase Document
104		​			Cover Page Interactive Data File (Formatted as Inline XBRL and contained Exhibit 101).

*	Filed herewith.

◊	Certain portions of this exhibit have been omitted to preserve the confidentiality of such information. The Company will furnish copies of any such information to the SEC or its staff upon request.

**

This certification is being furnished solely to accompany this Quarterly Report on Form 10-Q pursuant to 18 U.S.C Section 1350 and is not being filed for purposes of Section 18 of the Exchange Act or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference into any filing of the registrant under the Securities Act or the Exchange Act, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

​

41

Table of Contents

SIGNATURES

Pursuant to the requirements of the Exchange Act, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

​

​	​	​	​
​		NEURONETICS, INC.
​	​	(Registrant)
Date: November 12, 2024	​	By:	/s/ Keith J. Sullivan
​	​	Name:	Keith J. Sullivan
​	​	Title:	President and Chief Executive Officer
​	​	​	(Principal Executive Officer)
Date: November 12, 2024	​	By:	/s/ Stephen Furlong
​	​	Name:	Stephen Furlong
​	​	Title:	EVP, Chief Financial Officer and Treasurer
​	​	​	(Principal Financial and Accounting Officer)

​

​

​

​

42

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

I, Keith J. Sullivan, certify that:

1.	I have reviewed this quarterly report on Form 10-Q of Neuronetics, Inc.;

2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.

The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)

Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)

Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)

Evaluated the effectiveness of the registrant’s disclosure controls and procedures, and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures as of the end of the period covered by this report based on such evaluation; and

(d)

Disclosed in this report, any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.	The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)

All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)

Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

​	​	​
Date: November 12, 2024	By:	/s/ Keith J. Sullivan
​	Name:	Keith J. Sullivan
​	Title:	President and Chief Executive Officer
​	​	(Principal Executive Officer)

​

---

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

I, Stephen Furlong, certify that:

1.	I have reviewed this quarterly report on Form 10-Q of Neuronetics, Inc.;

2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.

The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)

Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)

Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)

Evaluated the effectiveness of the registrant’s disclosure controls and procedures, and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures as of the end of the period covered by this report based on such evaluation; and

(d)

Disclosed in this report, any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.	The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)

All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)

Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

s	​	​
Date: November 12, 2024	By:	/s/ Stephen Furlong
​	Name:	Stephen Furlong
​	Title:	EVP, Chief Financial Officer and Treasurer
​	​	(Principal Financial and Accounting Officer)

​

---

Exhibit 32.1

​

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the quarterly report on Form 10-Q of Neuronetics, Inc. (the “Company”) for the fiscal quarter ended September 30, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1)

the Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)

the information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

​	​	​
Date: November 12, 2023	By:	/s/ Keith J. Sullivan
​	Name:	Keith J. Sullivan
​	Title:	President and Chief Executive Officer
​	​	(Principal Executive Officer)

​

---

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the quarterly report on Form 10-Q of Neuronetics, Inc. (the “Company”) for the fiscal quarter ended September 30, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1)

the Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)

the information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

​

​	​	​
Date: November 12, 2024	By:	/s/ Stephen Furlong
​	Name:	Stephen Furlong
​	Title:	EVP, Chief Financial Officer and Treasurer
​	​	(Principal Financial and Accounting Officer)

​

---

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2024	Nov. 07, 2024
Document and Entity Information
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2024
Document Transition Report	false
Entity File Number	001-38546
Entity Registrant Name	NEURONETICS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	33-1051425
Entity Address, Postal Zip Code	19355
Entity Address, Address Line One	3222 Phoenixville Pike
Entity Address, City or Town	Malvern
Entity Address, State or Province	PA
City Area Code	610
Local Phone Number	640-4202
Title of 12(b) Security	Common Stock ($0.01 par value)
Trading Symbol	STIM
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		30,347,504
Entity Central Index Key	0001227636
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3
Amendment Flag	false

Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 20,867	$ 59,677
Accounts receivable, net	16,825	15,782
Inventory	4,960	8,093
Current portion of net investments in sales-type leases	572	905
Current portion of prepaid commission expense	2,921	2,514
Current portion of notes receivable	2,477	2,056
Prepaid expenses and other current assets	4,837	4,766
Total current assets	53,459	93,793
Property and equipment, net	1,639	2,009
Operating lease right-of-use assets	2,328	2,773
Net investments in sales-type leases	140	661
Prepaid commission expense	8,733	8,370
Long-term notes receivable	2,878	3,795
Other assets	4,940	4,430
Total assets	74,117	115,831
Current liabilities:
Accounts payable	3,295	4,752
Accrued expenses	11,429	12,595
Deferred revenue	1,311	1,620
Current portion of operating lease liabilities	862	845
Total current liabilities	16,897	19,812
Long-term debt, net	46,002	59,283
Deferred revenue	4	200
Operating lease liabilities	1,833	2,346
Total liabilities	64,736	81,641
Commitments and contingencies (Note 18)
Stockholders' equity:
Preferred stock, $0.01 par value: 10,000 shares authorized; no shares issued or outstanding on September 30, 2024 and December 31, 2023
Common stock, $0.01 par value: 200,000 shares authorized; 30,317 and 29,092 shares issued and outstanding on September 30, 2024 and December 31, 2023, respectively	303	291
Additional paid-in capital	416,205	409,980
Accumulated deficit	(407,127)	(376,081)
Total Stockholders' equity	9,381	34,190
Total liabilities and Stockholders' equity	$ 74,117	$ 115,831

Balance Sheets (Parenthetical) - $ / shares shares in Thousands	Sep. 30, 2024	Dec. 31, 2023
Balance Sheets
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	10,000	10,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	200,000	200,000
Common stock, shares issued (in shares)	30,317	29,092
Common stock, shares outstanding (in shares)	30,317	29,092

Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statements of Operations
Revenues	$ 18,530	$ 17,884	$ 52,397	$ 51,034
Cost of revenues	4,529	6,120	13,129	15,100
Gross profit	14,001	11,764	39,268	35,934
Operating expenses:
Sales and marketing	11,877	12,141	35,820	35,602
General and administrative	7,436	6,339	19,540	19,151
Research and development	2,416	2,155	6,999	7,308
Total operating expenses	21,729	20,635	62,359	62,061
Loss from operations	(7,728)	(8,871)	(23,091)	(26,127)
Other (income) expense:
Interest expense	1,725	1,184	5,529	3,580
Loss on extinguishment of debt	4,427		4,427
Other income, net	(539)	(664)	(2,001)	(4,895)
Net loss	$ (13,341)	$ (9,391)	$ (31,046)	$ (24,812)
Net loss per share of common stock outstanding, basic	$ (0.44)	$ (0.33)	$ (1.04)	$ (0.87)
Net loss per share of common stock outstanding, diluted	$ (0.44)	$ (0.33)	$ (1.04)	$ (0.87)
Weighted average common shares outstanding, basic	30,267	28,876	29,931	28,505
Weighted average common shares outstanding, diluted	30,267	28,876	29,931	28,505

Statements of Changes in Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Total
Beginning balance at Dec. 31, 2022	$ 273	$ 402,679	$ (345,892)	$ 57,060
Beginning balance, shares at Dec. 31, 2022	27,268
Share-based awards and options exercises	$ 12	(12)
Share-based awards and options exercises (in shares)	1,197
Share-based compensation expense		1,805		1,805
Net loss			(10,520)	(10,520)
Ending balance at Mar. 31, 2023	$ 285	404,472	(356,412)	48,345
Ending balance, shares at Mar. 31, 2023	28,465
Beginning balance at Dec. 31, 2022	$ 273	402,679	(345,892)	57,060
Beginning balance, shares at Dec. 31, 2022	27,268
Net loss				(24,812)
Ending balance at Sep. 30, 2023	$ 289	408,356	(370,704)	37,941
Ending balance, shares at Sep. 30, 2023	28,902
Beginning balance at Mar. 31, 2023	$ 285	404,472	(356,412)	48,345
Beginning balance, shares at Mar. 31, 2023	28,465
Share-based awards and options exercises	$ 3	(3)
Share-based awards and options exercises (in shares)	348
Share-based compensation expense		2,033		2,033
Net loss			(4,901)	(4,901)
Ending balance at Jun. 30, 2023	$ 288	406,502	(361,313)	45,477
Ending balance, shares at Jun. 30, 2023	28,813
Share-based awards and options exercises	$ 1	(1)
Share-based awards and options exercises (in shares)	89
Share-based compensation expense		1,855		1,855
Net loss			(9,391)	(9,391)
Ending balance at Sep. 30, 2023	$ 289	408,356	(370,704)	37,941
Ending balance, shares at Sep. 30, 2023	28,902
Beginning balance at Dec. 31, 2023	$ 291	409,980	(376,081)	34,190
Beginning balance, shares at Dec. 31, 2023	29,092
Share-based awards and options exercises	$ 9	(9)
Share-based awards and options exercises (in shares)	883
Share-based compensation expense		1,338		1,338
Net loss			(7,873)	(7,873)
Ending balance at Mar. 31, 2024	$ 300	411,309	(383,954)	27,655
Ending balance, shares at Mar. 31, 2024	29,975
Beginning balance at Dec. 31, 2023	$ 291	409,980	(376,081)	34,190
Beginning balance, shares at Dec. 31, 2023	29,092
Net loss				(31,046)
Ending balance at Sep. 30, 2024	$ 303	416,205	(407,127)	9,381
Ending balance, shares at Sep. 30, 2024	30,317
Beginning balance at Mar. 31, 2024	$ 300	411,309	(383,954)	27,655
Beginning balance, shares at Mar. 31, 2024	29,975
Share-based awards and options exercises	$ 1	(1)
Share-based awards and options exercises (in shares)	161
Share-based compensation expense		1,563		1,563
Net loss			(9,832)	(9,832)
Ending balance at Jun. 30, 2024	$ 301	412,871	(393,786)	19,386
Ending balance, shares at Jun. 30, 2024	30,136
Share-based awards and options exercises	$ 2	(2)
Share-based awards and options exercises (in shares)	181
Issuance of warrants, net of issuance costs of $35		1,917		1,917
Share-based compensation expense		1,419		1,419
Net loss			(13,341)	(13,341)
Ending balance at Sep. 30, 2024	$ 303	$ 416,205	$ (407,127)	$ 9,381
Ending balance, shares at Sep. 30, 2024	30,317

Statements of Changes in Stockholders' Equity (Parenthetical) $ in Thousands	3 Months Ended
	Sep. 30, 2024 USD ($)
Statements of Changes in Stockholders' Equity
Warrants issuance costs net	$ 35

Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Cash flows from Operating activities:
Net loss		$ (31,046)	$ (24,812)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization		1,627	1,503
Allowance for credit losses		1,947	369
Inventory impairment		346	1,905
Share-based compensation		4,320	5,693
Non-cash interest expense		580	460
Loss on extinguishment of debt	$ 4,427	4,427
Changes in certain assets and liabilities:
Accounts receivable, net		(3,834)	(7,933)
Inventory		2,718	(2,742)
Net investments in sales-type leases		854	1,092
Prepaid commission expense		(770)	(804)
Prepaid expenses and other assets		(374)	(3,338)
Accounts payable		(1,524)	54
Accrued expenses		(1,166)	(4,801)
Deferred revenue		(506)	(817)
Net Cash used in Operating activities		(22,401)	(34,171)	$ (32,000)
Cash flows from Investing activities:
Purchases of property and equipment and capitalized software		(1,377)	(1,490)
Repayment of notes receivable		1,340	731
Net Cash used in Investing activities		(37)	(759)
Cash flows from Financing activities:
Payments of debt issuance costs		(2,188)	(863)
Proceeds from issuance of long-term debt		48,084	2,500
Proceeds from issuance of warrants		1,916
Repayment of long-term debt		(60,000)	(1,200)
Payment for debt extinguishment cost		(4,185)
Proceeds from exercises of stock options		1
Net Cash (used in) provided by Financing activities		(16,372)	437
Net decrease in Cash and Cash equivalents		(38,810)	(34,493)
Cash and Cash equivalents, Beginning of Period		59,677	70,340	70,340
Cash and Cash equivalents, End of Period	$ 20,867	20,867	35,847	$ 59,677
Supplemental disclosure of cash flow information:
Cash paid for interest		4,948	3,120
Transfer of inventory to property and equipment		92
Supplemental disclosure of non-cash investing and financing activities:
Purchases of property and equipment and capitalized software in accounts payable and accrued expenses		67	335
Reduction of accounts receivable in current and long-term notes receivable		$ 606	$ 6,330

DESCRIPTION OF BUSINESS	9 Months Ended
	Sep. 30, 2024
DESCRIPTION OF BUSINESS
DESCRIPTION OF BUSINESS	1.     DESCRIPTION OF BUSINESS Neuronetics, Inc. (the “Company”) is a commercial stage medical technology company focused on designing, developing and marketing products that improve the quality of life for patients who suffer from neurohealth disorders. The Company’s first commercial product, the NeuroStar Advanced Therapy System, is a non-invasive and non-systemic office-based treatment that uses transcranial magnetic stimulation (“TMS”) to create a pulsed, MRI-strength magnetic field that induces electrical currents designed to stimulate specific areas of the brain associated with mood. The NeuroStar Advanced Therapy System was cleared in 2008 by the United States (“U.S.”) Food and Drug Administration (the “FDA”) to treat adult patients with major depressive disorder (“MDD”) who have failed to achieve satisfactory improvement from prior antidepressant medication in the current MDD episode. It is also cleared by the FDA as an adjunct for adults with obsessive-compulsive disorder (“OCD”), and to decrease anxiety symptoms in adult patients with MDD that may exhibit comorbid anxiety symptoms (anxious depression), and as an adjunct for the treatment of MDD in adolescent patients aged 15-21. The NeuroStar Advanced Therapy System is also available in other parts of the world, including Japan, where it is listed under Japan’s national health insurance. The Company intends to continue to pursue development of its NeuroStar Advanced Therapy System for additional indications. Liquidity As of September 30, 2024, the Company had cash and cash equivalents of $20.9 million and an accumulated deficit of $407.1 million. The Company incurred negative cash flows from operating activities of $22.4 million for the nine months ended September 30, 2024 and $32.0 million for the year ended December 31, 2023. The Company has incurred operating losses since its inception, and management anticipates that its operating losses will continue in the near term as the Company continues to invest in sales, marketing and product development activities. The Company’s primary sources of capital to date have been proceeds from its initial public offering (“IPO”), private placements of its convertible preferred securities, borrowings under its credit facility, proceeds from its secondary public offering of common stock and revenues from sales of its products. On July 25, 2024, the Company entered into a Credit Agreement and Guaranty with Perceptive Credit Holdings IV, LP (“Perceptive”) as collateral agent and other lenders defined in the agreement (the “Perceptive Facility”). As of September 30, 2024, the Company had $50.0 million of borrowings outstanding under its credit facility, which has a final maturity on July 25, 2029. The Perceptive Facility is subject to certain financial covenants including a minimum net revenue covenant that escalates over the term of the Perceptive Facility and a minimum liquidity covenant. Our future ability to comply with these financial covenants is subject to risks, including our ability to continue to generate sufficient revenue growth and operating efficiencies to achieve cash flow breakeven. Management believes that the Company’s cash and cash equivalents as of September 30, 2024, anticipated revenues from sales of its products, and operational cash savings from the actions described in “Note 21. Subsequent Events” are sufficient to fund the Company’s operations for at least the next 12 months from the issuance of these financial statements. ​

BASIS OF PRESENTATION	9 Months Ended
	Sep. 30, 2024
BASIS OF PRESENTATION
BASIS OF PRESENTATION	2.     BASIS OF PRESENTATION The accompanying financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). Any reference in these notes to applicable guidance is meant to refer to U.S. GAAP as found in the Accounting Standards Codification and Accounting Standards Updates (“ASUs”) promulgated by the Financial Accounting Standards Board (the “FASB”). Interim Financial Statements The accompanying unaudited interim financial statements have been prepared from the books and records of the Company in accordance with U.S. GAAP for interim financial information and Rule 10-01 of Regulation S-X promulgated by the U.S. Securities and Exchange Commission (the “SEC”), which permit reduced disclosures for interim periods. All adjustments, consisting only of normal recurring adjustments, necessary for a fair presentation of the accompanying balance sheets and statements of operations and stockholders’ equity and cash flows have been made. Although these interim financial statements do not include all of the information and footnotes required for complete annual financial statements, management believes the disclosures are adequate to make the information presented not misleading. Unaudited interim results of operations and cash flows for the three and nine months ended September 30, 2024 are not necessarily indicative of the results that may be expected for the full year. Unaudited interim financial statements and footnotes should be read in conjunction with the audited financial statements and footnotes included in the Company’s Annual Report on Form 10-K filed with the SEC on March 8, 2024, wherein a more complete discussion of significant accounting policies and certain other information can be found. Use of Estimates The preparation of financial statements in accordance with U.S. GAAP and the rules and regulations of the SEC, requires the use of estimates and assumptions, based on judgments considered reasonable, which affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The Company bases its estimates and assumptions on historical experience, known trends and events and various other factors that management believes to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Although management believes its estimates and assumptions are reasonable when made, they are based upon information available at the time they are made. Management evaluates the estimates and assumptions on an ongoing basis and, if necessary, makes adjustments. Due to the risks and uncertainties involved in the Company’s business and evolving market conditions, and given the subjective element of the estimates and assumptions made, actual results may differ materially from estimated results.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	9 Months Ended
	Sep. 30, 2024
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	3.     SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES The Company’s complete summary of significant accounting policies can be found in “Note 3. Summary of Significant Accounting Policies” in the audited financial statements included in the Company’s Annual Report on Form 10-K filed with the SEC on March 8, 2024.

RECENT ACCOUNTING PRONOUNCEMENTS	9 Months Ended
	Sep. 30, 2024
RECENT ACCOUNTING PRONOUNCEMENTS
RECENT ACCOUNTING PRONOUNCEMENTS	4.     RECENT ACCOUNTING PRONOUNCEMENTS New Accounting Standards Adopted by the Company In November 2023, the FASB issued ASU 2023-07, Improvements to Reportable Segment Disclosures (“ASU 2023-07”), which requires public companies to disclose for each reportable segment the significant expense categories and amounts for such expenses. ASU 2023-07 is effective for annual periods beginning December 15, 2023, and for interim periods within fiscal years beginning after December 15, 2024. This ASU will be effective for our annual period ended December 31, 2024. The Company believes that the adoption of ASU 2023-07 will not have a material effect on the Company’s financial statements and related disclosures. In December 2023, the FASB issued ASU 2023-09, Improvements to Income Tax Disclosures (“ASU 2023-09”), which requires public business entities to disclose specific categories in the rate reconciliation and provide additional information for reconciling items that meet a quantitative threshold. ASU 2023-09 is effective for annual periods beginning after December 15, 2024. This ASU will be effective for our annual period ended December 31, 2025. The Company is currently evaluating the impacts of ASU 2023-09 on its disclosures. Other than the items noted above, there have been no new accounting pronouncements not yet effective or adopted in the current year that we believe have a significant impact, or potential significant impact, to our unaudited interim financial statements. ​

FAIR VALUE MEASUREMENT AND FINANCIAL INSTRUMENTS	9 Months Ended
	Sep. 30, 2024
FAIR VALUE MEASUREMENT AND FINANCIAL INSTRUMENTS
FAIR VALUE MEASUREMENT AND FINANCIAL INSTRUMENTS	5.     FAIR VALUE MEASUREMENT AND FINANCIAL INSTRUMENTS The carrying values of cash equivalents, accounts receivable, prepaids and other current assets, and accounts payable on the Company’s balance sheets approximated their fair values as of September 30, 2024 and December 31, 2023 due to their short-term nature. The carrying values of the Company’s credit facility approximated its fair value as of September 30, 2024 and December 31, 2023 due to its variable interest rate. The carrying value of the Company’s notes receivable approximated its fair value as of September 30, 2024 and December 31, 2023 due to their variable interest rates. Certain of the Company’s financial instruments are measured at fair value using a three-level hierarchy that prioritizes the inputs used to measure fair value. This hierarchy maximizes the use of observable inputs and minimizes the use of unobservable inputs. The three levels of inputs used to measure fair value are as follows: Level 1: Inputs are quoted prices for identical instruments in active markets. Level 2: Inputs are quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; or model-derived valuations whose inputs are observable or whose significant value drivers are observable. Level 3: Inputs are unobservable and reflect the Company’s own assumptions, based on the best information available, including the Company’s own data. The following tables set forth the carrying amounts and fair values of the Company’s financial instruments as of September 30, 2024 and December 31, 2023 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​      September 30, 2024 ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurement Based on ​ ​ ​ ​ ​ ​ ​ ​ Quoted ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Prices In ​ other ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ Active ​ Observable ​ Unobservable ​ ​ Carrying ​ ​ ​ ​ Markets ​ Inputs ​ Inputs ​      Amount      Fair Value      (Level 1)      (Level 2)      (Level 3) Assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Money market funds (cash equivalents) ​ $ 13,488 ​ $ 13,488 ​ $ 13,488 ​ $ — ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​      December 31, 2023 ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurement Based on ​ ​ ​ ​ ​ ​ ​ ​ Quoted ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Prices In ​ other ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ Active ​ Observable ​ Unobservable ​ ​ Carrying ​ ​ ​ ​ Markets ​ Inputs ​ Inputs ​ ​ Amount ​ Fair Value ​ (Level 1) ​ (Level 2) ​ (Level 3) Assets      ​         ​         ​         ​         ​    Money market funds (cash equivalents) ​ $ 27,507 ​ $ 27,507 ​ $ 27,507 ​ $ — ​ $ — ​

ACCOUNTS RECEIVABLE	9 Months Ended
	Sep. 30, 2024
ACCOUNTS RECEIVABLE
ACCOUNTS RECEIVABLE	6.     ACCOUNTS RECEIVABLE The following table presents the composition of accounts receivable, net, as of September 30, 2024 and December 31, 2023 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30,  ​ December 31,  ​ ​      2024      2023 ​ Gross accounts receivable - trade ​ $ 18,825 ​ $ 16,577 ​ Less: Allowances for credit losses ​   (2,000) ​   (795) ​ Accounts receivable, net ​ $ 16,825 ​ $ 15,782 ​ ​

INVENTORY	9 Months Ended
	Sep. 30, 2024
INVENTORY
INVENTORY	​ ​ 7.     INVENTORY Inventory is stated at the lower of cost and net realizable value, with cost being determined on a first in, first out basis. The Company’s inventory is primarily comprised of finished goods and work-in-process. ​ ​ ​ ​ ​

PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE	9 Months Ended
	Sep. 30, 2024
PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE
PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE	8.     PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE The following table presents the composition of property and equipment, net, as of September 30, 2024 and December 31, 2023 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30,  ​ December 31,  ​ ​      2024      2023 ​ Laboratory equipment ​ $ 705 ​ $ 702 ​ Office equipment ​   495 ​   495 ​ Auto ​ ​ 23 ​ ​ 23 ​ Computer equipment and software ​   1,136 ​   1,082 ​ Manufacturing equipment ​   575 ​   551 ​ Leasehold improvements ​   1,463 ​   1,436 ​ Rental equipment ​   598 ​   542 ​ Property and equipment, gross ​   4,995 ​   4,831 ​ Less: Accumulated depreciation ​   (3,356) ​   (2,822) ​ Property and equipment, net ​ $ 1,639 ​ $ 2,009 ​ ​ As of September 30, 2024 and December 31, 2023, the Company had capitalized software costs, net, of $4.5 million and $4.2 million, respectively, which are included in “Prepaid expenses and other current assets” and “Other assets” on the balance sheet. Depreciation and amortization expense was $0.5 million for the three months ended September 30, 2024 and 2023, respectively, and $1.6 million and $1.5 million for the nine months ended September 30, 2024 and 2023, respectively.

NOTES RECEIVABLE	9 Months Ended
	Sep. 30, 2024
NOTES RECEIVABLE
NOTES RECEIVABLE	9.     NOTES RECEIVABLE Greenbrook TMS Inc. On March 31, 2023, the Company entered into a Secured Promissory Note and Guaranty Agreement (the “Promissory Note”) with TMS Neurohealth Centers Inc. (the “Maker”) and Greenbrook TMS Inc. (“Greenbrook”) and its subsidiaries, excluding the Maker (the “Guarantors”), in the principal amount of $6.0 million for a period of four years. Notes receivable outstanding from Greenbrook was $4.0 million and $5.2 million as of September 30, 2024 and December 31, 2023, respectively. The Promissory Note bears interest at a rate equal to the sum of (a) the floating interest rate of daily secured overnight financing rate as administered by the Federal Reserve Bank of New York on its website (“SOFR”) plus (b) 7.65%. Pursuant to the terms of the Promissory Note, in the event of an event of default thereunder, the Maker will be required to issue common share purchase warrants to the Company equal to (i) 200% of the unpaid amount of any delinquent amount or payment due and payable under the Promissory Note, together with all outstanding and unpaid accrued interest, fees, charges and costs, divided by (ii) the exercise price of the warrants, which will represent (i) if the Maker’s common shares are traded on the Nasdaq Stock Market (“Nasdaq”), a 20% discount to the 30-day volume-weighted average closing price of Greenbrook’s common shares traded on the Nasdaq prior to the date of issuance (subject to any limitations that may be required by Nasdaq), (ii) if the Maker’s common shares are not then traded on Nasdaq, but are traded on the Toronto Stock Exchange (“TSX”) or another nationally recognized U.S. or Canadian securities exchange, inter-dealer quotation system or over-the-counter market (an “Other Market”), a 20% discount to the 30-day volume-weighted average closing of Greenbrook’s common shares traded on the TSX or Other Market, as elected by the Company, or (iii) if the Maker’s common shares are not traded on any of the above trading markets, a 20% discount to the fair market value of a common share as determined pursuant to the Promissory Note. Under the Promissory Note and related loan documents, the Maker and the Guarantors have granted to the Company a security interest in substantially all of the Maker’s and the Guarantors’ assets and the Guarantors have guaranteed the Maker’s obligations under the Promissory Note. The Company’s security interest pursuant to the Promissory Note and related loan documents ranks pari passu with the Maker’s senior lender, Madryn Fund Administration, LLC, and is subject to an intercreditor agreement. Interest income recognized by the Company related to notes receivable was $0.1 million and $0.2 million for the three months ended September 30, 2024 and 2023. Interest income recognized by the Company related to notes receivable was $0.5 million and $0.4 million for the nine months ended September 30, 2024 and 2023, respectively, and is included within “Other income, net” on the statements of operations. ​

LEASES	9 Months Ended
	Sep. 30, 2024
LEASES
LEASES	10.     LEASES Lessee: The Company has operating leases for its corporate headquarters, a training facility and office equipment, including copiers. The Company leases an approximately 32,000 square foot facility in Malvern, Pennsylvania for its corporate headquarters, which includes office and warehouse space. The Company leases an approximately 9,600 square foot facility in Charlotte, North Carolina as a training facility for its NeuroStar Advanced Therapy Systems. The Company does not currently have any finance leases or executed leases that have not yet commenced. Operating lease rent expense was $0.2 million for the three months ended September 30, 2024 and 2023, and $0.6 million for the nine months ended September 30, 2024 and 2023. As of September 30, 2024, the weighted-average remaining lease term of operating leases was 3.3 years and the weighted-average discount rate was 7.2%. The following table presents the supplemental cash flow information as a lessee related to leases (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​      Nine Months Ended ​ ​ ​ September 30, 2024      September 30, 2023 ​ Cash paid for amounts included in the measurement of lease liabilities:   ​      ​    ​ Operating cash flows from operating leases ​ $ 827 ​ $ 807 ​ ​ The following table sets forth by year the required future payments of operating lease liabilities (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2024 ​ Remainder of 2024 ​ $ 221 ​ 2025 ​ ​ 898 ​ 2026 ​   921 ​ 2027 ​   882 ​ 2028 ​   116 ​ Total lease payments ​   3,038 ​ Less imputed interest ​   (343) ​ Present value of operating lease liabilities ​ $ 2,695 ​ ​ Lessor sales-type leases: Certain customers have purchased NeuroStar Advanced Therapy Systems on a rent-to-own basis. The lease term is three or four years with a customer option to purchase the NeuroStar Advanced Therapy System at the end of the lease or automatic transfer of ownership of the NeuroStar Advanced Therapy System at the end of the lease. The following table sets forth the profit recognized on sales-type leases (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30,  ​ Nine Months Ended September 30,  ​ ​      2024      2023      2024      2023 ​ Profit recognized at commencement, net ​ $ 21 ​ $ 13 ​ $ 45 ​ $ 60 ​ Interest income ​   — ​   — ​   — ​   — ​ Total sales-type lease income ​ $ 21 ​ $ 13 ​ $ 45 ​ $ 60 ​ ​ The following table sets forth a maturity analysis of the undiscounted lease receivables related to sales-type leases (in thousands): ​ ​ ​ ​ ​ ​ ​      September 30, 2024 ​ Remainder of 2024 ​ $ 232 ​ 2025 ​ ​ 402 ​ 2026 ​   78 ​ Total sales-type lease receivables ​ $ 712 ​ ​ As of September 30, 2024, the carrying amount of the lease receivables is $0.7 million. The Company does not have any unguaranteed residual assets. Lessor operating leases: ​ NeuroStar Advanced Therapy Systems sold for which collection is not probable are accounted for as operating leases. For the three months ended September 30, 2024 and 2023, the Company recognized operating lease income of $0.04 million and $0.02 million, respectively. For the nine months ended September 30, 2024 and 2023, the Company recognized operating lease income of $0.1 million. The Company maintained rental equipment, net, of $0.3 million as of September 30, 2024 and December 31, 2023, which are included in “Property and equipment, net” on the balance sheet. Rental equipment depreciation expense was $0.02 million for the three months ended September 30, 2024 and 2023, and $0.07 million and $0.07 million for the nine months ended September 30, 2024 and 2023, respectively.

PREPAID COMMISSION EXPENSE	9 Months Ended
	Sep. 30, 2024
PREPAID COMMISSION EXPENSE
PREPAID COMMISSION EXPENSE	11.     PREPAID COMMISSION EXPENSE The Company pays a commission on both NeuroStar Advanced Therapy System sales and treatment session sales. Since the commission paid for system sales is not commensurate with the commission paid for treatment sessions, the Company capitalizes commission expense associated with NeuroStar Advanced Therapy System sales commissions paid that is incremental to specifically anticipated future treatment session orders. In developing this estimate, the Company considered its historical treatment session sales and customer retention rates, as well as technology development life cycles and other industry factors. These costs are periodically reviewed for impairment. NeuroStar Advanced Therapy System commissions are deferred and amortized on a straight-line basis over a seven year period equal to the average customer term, which the Company deems to be the expected period of benefit for these costs. On the Company’s balance sheets, the current portion of capitalized contract costs is represented by the “Current portion of prepaid commission expense”, while the long-term portion is included in “Prepaid commission expense”. Amortization expense was $0.7 million and $0.6 million for the three months ended September 30, 2024 and 2023, respectively, and $2.1 million and $1.7 million for the nine months ended September 30, 2024 and 2023, respectively.

ACCRUED EXPENSES	9 Months Ended
	Sep. 30, 2024
ACCRUED EXPENSES
ACCRUED EXPENSES	12.     ACCRUED EXPENSES The following table presents the composition of accrued expenses as of September 30, 2024 and December 31, 2023 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​      September 30,       December 31,  ​ ​ 2024 ​ 2023 Compensation and related benefits ​ $ 6,769 ​ $ 8,003 Consulting and professional fees ​   1,702 ​   488 Research and development expenses ​   556 ​   260 Sales and marketing expenses ​ ​ 397 ​ ​ 1,760 Warranty ​   237 ​   213 Sales and other taxes payable ​   714 ​   818 Other ​   1,054 ​   1,053 Accrued expenses ​ $ 11,429 ​ $ 12,595 ​

REVENUE AND DEFERRED REVENUE	9 Months Ended
	Sep. 30, 2024
REVENUE AND DEFERRED REVENUE
REVENUE AND DEFERRED REVENUE	13.     REVENUE AND DEFERRED REVENUE Payment terms typically require payment upon shipment or installation of the NeuroStar Advanced Therapy System and additional payments as access codes for treatment sessions are delivered, which can span several years after the NeuroStar Advanced Therapy System is first delivered and installed. The timing of revenue recognition compared to billings and cash collections typically results in accounts receivable. However, sometimes customer advances and deposits may be required for certain customers and are recorded as contract liabilities (deferred revenue). For multi-year agreements, the Company generally invoices customers annually at the beginning of each annual coverage period and recognizes revenue over the term of the coverage period. As of September 30, 2024, the Company expects to recognize approximately the following percentages of deferred revenue by year: ​ ​ ​ ​ ​ ​      Revenue   Year: ​ Recognition   Remainder of 2024 ​ 43 % 2025   54 % 2026   2 % 2027   1 % Total   100 % ​ Revenue recognized for the three months ended September 30, 2024 and 2023 that was included in the contract liability balance at the beginning of the year was $0.3 million and $0.4 million, respectively. Revenue recognized for the nine months ended September 30, 2024 and 2023 that was included in the contract liability balance at the beginning of the year was $1.4 million and $1.7 million, respectively, and primarily represented revenue earned from separately priced extended warranties, customer deposits, milestone revenue, and clinical training. Customers Significant customers are those that represent more than 10% of the Company’s total revenue. For the three months ended September 30, 2024 and 2023, one customer accounted for 13% and 15% of the Company’s revenue, respectively. For the nine months ended September 30, 2024 and 2023, one customer accounted for 14% and 17% of the Company’s revenue, respectively. Accounts receivable outstanding related to that customer was $1.9 million as of September 30, 2024 and December 31, 2023. ​ Notes receivable outstanding related to that customer was $4.0 million and $5.2 million as of September 30, 2024 and December 31, 2023, respectively. ​ Geographical information The following geographic data includes revenue generated from the Company’s third-party distributors. The Company’s revenue was generated in the following geographic regions and by product line for the periods indicated (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Revenues by Geography   ​ ​ Three Months Ended September 30,    ​ ​ 2024 ​ 2023   ​ ​ ​ ​ ​ % of ​ ​ ​ ​ % of   ​ ​ Amount ​ Revenues ​ Amount ​ Revenues   ​ ​ (in thousands, except percentages) ​ U.S.      $ 17,922      97 %   $ 17,211      96 % International ​   608   3 %     673   4 % Total revenues ​ $ 18,530   100 %   $ 17,884   100 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Revenues by Product Category   ​ ​ Three Months Ended September 30,    ​ ​ 2024 ​ 2023   ​ ​ ​ ​ ​ % of ​ ​ ​ % of   ​      Amount      Revenues      Amount      Revenues   ​   (in thousands, except percentages) ​ NeuroStar Advanced Therapy System ​ $ 4,108 ​ 23 %   $ 3,597 ​ 21 % Treatment sessions ​   13,326   74 %   13,060   76 % Other ​   488   3 %   554   3 % Total U.S. revenues ​ $ 17,922   100 % $ 17,211   100 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ International Revenues by Product Category   ​ ​ Three Months Ended September 30,    ​ ​ 2024 ​ 2023   ​ ​ ​ ​ ​ % of ​ ​ ​ ​ % of   ​      Amount      Revenues      Amount      Revenues   ​   (in thousands, except percentages) ​ NeuroStar Advanced Therapy System ​ $ 244   40 %   $ 258   38 % Treatment sessions ​   90   15 %     280   42 % Other ​   274   45 %     135   20 % Total international revenues ​ $ 608   100 %   $ 673   100 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Revenues by Geography   ​ ​ Nine Months Ended September 30,    ​ ​ 2024 ​ 2023   ​ ​ ​ ​ ​ % of ​ ​ ​ ​ % of   ​ ​ Amount ​ Revenues ​ Amount ​ Revenues   ​ ​ (in thousands, except percentages) ​ U.S.      $ 50,845      97 %   $ 49,464      97 % International ​   1,552   3 %     1,570   3 % Total revenues ​ $ 52,397   100 %   $ 51,034   100 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Revenues by Product Category   ​ ​ Nine Months Ended September 30,    ​ ​ 2024 ​ 2023   ​ ​ ​ ​ ​ % of ​ ​ ​ % of   ​      Amount      Revenues      Amount      Revenues   ​   (in thousands, except percentages) ​ NeuroStar Advanced Therapy System ​ $ 11,418 ​ 22 %   $ 11,936 ​ 24 % Treatment sessions ​   37,974   75 %   36,018   73 % Other ​   1,453   3 %   1,510   3 % Total U.S. revenues ​ $ 50,845   100 % $ 49,464   100 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ International Revenues by Product Category   ​ ​ Nine Months Ended September 30,    ​ ​ 2024 ​ 2023   ​ ​ ​ ​ ​ % of ​ ​ ​ ​ % of   ​      Amount      Revenues      Amount      Revenues   ​   (in thousands, except percentages) ​ NeuroStar Advanced Therapy System ​ $ 502   32 %   $ 573   36 % Treatment sessions ​   400   26 %     589   38 % Other ​   650   42 %     408   26 % Total International revenues ​ $ 1,552   100 %   $ 1,570   100 % ​

DEBT	9 Months Ended
	Sep. 30, 2024
DEBT
DEBT	14.     DEBT The following table presents the composition of debt as of September 30, 2024 and December 31, 2023 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30,  ​ December 31,  ​ ​      2024      2023 ​ Outstanding principal ​ $ 50,000 ​ $ 60,000 ​ Accrued final payment fees ​   — ​   1,856 ​ Less debt discounts ​   (3,998) ​   (2,573) ​ Total debt, net ​   46,002 ​   59,283 ​ Less current portion ​   — ​   — ​ Long-term debt, net ​ $ 46,002 ​ $ 59,283 ​ ​ For the three months ended September 30, 2024, the Company recognized interest expense of $1.7 million, of which $1.6 million was cash and $0.1 million was non-cash interest expense related to the amortization of deferred debt issuance costs and accrual of final payment fees. For the three months ended September 30, 2023, the Company recognized interest expense of $1.2 million, of which $1.1 million was cash and $0.1 million was non-cash interest expense related to the amortization of deferred debt issuance costs and accrual of final payment fees. For the nine months ended September 30, 2024, the Company recognized interest expense of $5.5 million, of which $4.9 million was cash and $0.6 million was non-cash interest expense related to the amortization of deferred debt issuance costs and accrual of final payment fees. For the nine months ended September 30, 2023, the Company recognized interest expense of $3.6 million, of which $3.1 million was cash and $0.5 million was non-cash interest expense related to the amortization of deferred debt issuance costs and accrual of final payment fees. Loss on extinguishment of debt amounting to $4.4 million was recorded during the three months ended September 30, 2024, related to the SLR Facility. This included $1.2 million of early prepayment fees and $3.2 million of deferred financing expense related to extinguishment of debt. Perceptive Credit Facility On July 25, 2024, the Company entered into the Perceptive Facility which was used to partially repay the Company’s previous $60.0 million credit facility with SLR Investment Corp. ​ The Perceptive Facility permits the Company to borrow up to an aggregate amount of $90.0 million in three tranches of term loans, a “Tranche 1 Loan”, a “Tranche 2 Loan” and a “Tranche 3 Loan.” On July 25, 2024, the Company borrowed an aggregate amount of $50.0 million, which was the aggregate amount available under the Tranche 1 Loan portion of the Perceptive Facility. Under the Tranche 2 Loan portion of the Perceptive Facility, the Company is permitted to borrow, at its election, up to an aggregate amount of $15.0 million, (i) upon the Company achieving a specified amount of trailing twelve months net revenue, and (ii) assuming there has been no event of default under the Perceptive Facility prior to such election. The Tranche 2 Loan portion of the Perceptive Facility must be borrowed on or before December 31, 2025. Under the Tranche 3 Loan portion of the Perceptive Facility, the Company may request to borrow, at the consent of the Majority Lenders (as defined in the Perceptive Facility), up to an aggregate amount of $25.0 million. The Tranche 3 Loan portion of the Perceptive Facility must be borrowed on or before June 30, 2026. There will be no scheduled repayments of the principal on the Tranche 1 Loan, Tranche 2 Loan and Tranche 3 Loan prior to the maturity date. All amounts borrowed under the Perceptive Facility are due on July 25, 2029. ​ Each of the Tranche 1 Loan, Tranche 2 Loan and Tranche 3 Loan accrues interest from the date of borrowing through the date of repayment at a floating per annum rate of interest equal to the sum of 7.00% plus the greater of (a) 4.50% and (b) One-Month Term SOFR (as defined in the Perceptive Facility). ​ If the Company prepays either the Tranche 1 Loan, Tranche 2 Loan or Tranche 3 Loan prior to their scheduled maturity date, the Company will also be required to pay prepayment fees to Perceptive equal to 6% of the principal amount of such term loan then-prepaid if prepaid on or before the first anniversary of the closing date, 5% of the principal amount of such term loan then-prepaid if prepaid after the first anniversary and on or before the second anniversary of the closing date, 4% of the principal amount of such term loan then-prepaid if prepaid after the second anniversary and on or before the third anniversary of the closing date, and 3% of the principal amount of such term loan then-prepaid if prepaid after the third anniversary and on or before the fourth anniversary of the closing date. ​ The Company’s obligations under the Perceptive Facility are secured by a first priority security interest in substantially all of the Company’s assets, including its intellectual property. The Perceptive Facility requires the Company to comply with a quarterly minimum trailing revenue covenant commencing December 2024 and a minimum liquidity covenant as well as affirmative and negative covenants. ​ The Perceptive Facility contains events of default, including, without limitation, events of default upon: (i) failure to make payment pursuant to the terms of the agreement; (ii) violation of covenants; (iii) material adverse changes to the Company’s business; (iv) insolvency; (v) material cross-defaults; (vi) significant judgments, orders or decrees for payments by the Company; (vii) incorrectness of representations and warranties; (viii) significant adverse ERISA events; (ix) failure by the Company to be registered with the United States Securities and Exchange Commission in good standing; and (x) failure by the Company to maintain a valid and perfected lien on the collateral securing the borrowing. ​ As consideration for the Perceptive Facility, the Company agreed to issue to Perceptive warrants to purchase up to 1,462,500 shares of the Company’s common stock, with a warrant exercisable into 1,125,000 shares of the Company’s common stock issued on the closing date (the “Initial Warrant”). The per share exercise price for the Initial Warrant is equal to the lower of (x) the 10-day volume weighted average price of the Company’s common stock on the business day immediately prior to the closing date and (y) the 10-day volume weighted average price of the common stock ended on August 31, 2024. In addition to the Initial Warrant, an additional warrant will be issued for 337,500 shares of common stock concurrently with the borrowing of the Tranche 2 Loan. The per share exercise price for the additional warrant will be equal to the exercise price of the Initial Warrant. Each warrant will be exercisable, in whole or in part, until the tenth anniversary of the applicable date of issuance. The Company was in compliance with the covenants under the Perceptive Facility at September 30, 2024. SLR Credit Facility On March 2, 2020 the Company entered into a Loan and Security Agreement with Solar Investment Corp. (formerly known as Solar Capital Ltd) (“SLR”) as collateral agent and other lenders as defined in the agreement (such agreement, as amended, the “SLR Facility”). On March 7, 2024, the Company entered into a sixth amendment (the “SLR Sixth Amendment”) to the SLR Facility. Under the SLR Sixth Amendment, SLR: (a) waived the specified events with respect to the Company’s non-compliance with the required revenue under the net product revenue covenant; and (b) amended the financial covenants and increased the amount of the liquidity covenant and temporarily decreased the net product revenue covenant to reflect current projections. On September 29, 2023, the Company entered into a fifth amendment (the “SLR Fifth Amendment”) to the SLR Facility. The SLR Fifth Amendment allowed the Company to draw on the $22.5 million Term C Loan portion of the SLR Facility and revised the required testing levels of the net product revenue and minimum liquidity covenants for certain testing periods. On October 3, 2023, the Company borrowed $22.5 million under the Term C Loan portion of the SLR Facility, resulting in total borrowing of $60 million. On March 29, 2023, the Company entered into a fourth amendment (the “SLR Fourth Amendment”) to the Loan and Security Agreement dated March 2, 2020 with SLR. The SLR Fourth Amendment increased the borrowings by $2.5 million, extended the interest only period from March 2023 to March 2026, and extended the maturity date from February 2025 to March 2028. In addition, the SLR Fourth Amendment changed the basis of the interest expense from LIBOR to SOFR. The SLR Facility accrued interest from the date of borrowing through the date of repayment at a floating per annum rate of interest, which reset monthly and was equal to the greater of 5.65% plus (a) 3.95% or (b) daily simple SOFR for a term of one month. Only interest was required to be paid on the SLR Facility until March 1, 2026. Prior to the effectiveness of the SLR Fourth Amendment, the interest only period with respect to the Term A Loan expired on March 1, 2023. Commencing April 1, 2026, the Company was required to make monthly payments of principal and interest on the SLR Facility. In addition to the principal and interest payments due under the SLR Facility, the Company was required to pay a final payment fee to SLR upon the earlier of prepayment, acceleration or the maturity date of the SLR Facility equal to 4.95% of the principal amount of the term loans actually funded. If the Company prepaid the SLR Facility prior to their respective scheduled maturities, the Company was also be required to pay prepayment fees to SLR equal to 3% of the principal amount of such term loan then-prepaid if prepaid on or before the first anniversary of the Term C Funding Date (as defined in the SLR Facility), 2% of the principal amount of such term loan then-prepaid if prepaid after the first anniversary and on or before the second anniversary of the Term C Funding Date, or 1% of the principal amount of such term loan then-prepaid if prepaid after the second anniversary of the Term C Funding Date. The Company was also required to pay SLR an exit fee upon the occurrence of (a) any liquidation, dissolution or winding up of the Company, (b) any transaction that results in a person obtaining control over the Company, (c) the Company achieving $100 million in trailing twelve-month net product revenue or (d) the Company achieving $125 million in trailing twelve-month net product revenue. The exit fee for liquidation, dissolution, winding up or change of control of the Company was equal to 2% of the principal amount of the term loans actually funded. The exit fee for achieving either $100 million or $125 million in trailing twelve-month net product revenue was equal to 1% of the principal amount of the term loans actually funded or, if both net product revenue milestones were achieved, 2% of the principal amount of the term loans actually funded. The exit fee was capped at 2% of the principal amount of the term loans actually funded. On January 31, 2024 and February 29, 2024, the Company was not in compliance with its minimum net product revenue covenant under the SLR Facility. The Company was granted a waiver from SLR in the SLR Sixth Amendment for the covenant violations. The amount of borrowings affected by this noncompliance was $60 million. As of June 30, 2024, the Company was not in compliance with its minimum net product revenue covenant under the SLR Facility. The amount of borrowing affected by this noncompliance was $60 million. As previously disclosed on the Company’s Current Report on Form 8-K filed on July 30, 2024, simultaneously with the Company’s entry into the Perceptive Facility, on July 25, 2024, the Company prepaid in full all outstanding obligations under and terminated the SLR Facility. In connection with this prepayment, the Company paid total consideration of $64.6 million, which consisted of (i) $60.0 million of remaining principal amount outstanding, (ii) $0.5 million of accrued and unpaid interest, (iii) $3.0 million in connection with the final payment fee, and (iv) $1.2 million in connection with the prepayment fee. The Company funded the prepayment of the SLR Facility using proceeds from the Perceptive Facility and cash on hand.

COMMON STOCK	9 Months Ended
	Sep. 30, 2024
COMMON STOCK
COMMON STOCK	15.     COMMON STOCK Common Stock The following table summarizes the total number of shares of the Company’s common stock issued and reserved for issuance as of September 30, 2024 and December 31, 2023 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​      September 30, 2024      December 31, 2023 ​ Shares of common stock issued   30,317   29,092 ​ Shares of common stock reserved for issuance for:           ​ Common stock warrants outstanding   1,146   41 ​ Stock options outstanding   1,238   1,270 ​ Restricted stock units outstanding   3,274   3,360 ​ Shares available for grant under stock incentive plans   852   978 ​ Shares available for sale under employee stock purchase plan   1,624   1,335 ​ Total shares of common stock issued and reserved for issuance   38,451   36,076 ​ ​ Common Stock Warrants During the three and nine months ended September 30, 2024, the Company issued 1,125,000 warrants as stated within “Note 14. Debt”. ​ The following tables summarizes the Company’s outstanding common stock warrants as of September 30, 2024, and December 31, 2023: ​ ​ ​ ​ ​ ​ ​ September 30, 2024           ​           Warrants           ​           Outstanding ​ ​ ​ ​ ​ (in thousands) ​ Exercise Price ​ Expiration Date 1,125 ​ $ 0.94 ​ July-2034 21 ​ $ 9.73   Dec-2024 1,146 ​           ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023           ​           Warrants           ​           Outstanding ​ ​ ​ ​ ​ (in thousands) ​ Exercise Price ​ Expiration Date 20 ​ $ 9.73   Mar-2024 21 ​ $ 9.73   Dec-2024 41 ​           ​ The Company valued warrants issued during the three and nine months ended September 30, 2024 using the Black-Scholes option pricing model using the following assumptions: ​ ​ ​ ​ ​ ​ ​      2024      Estimated fair value of common stock ​ $ 1.61 ​ Exercise price ​ $ 1.92 ​ Expected term (in years) ​   9.4 ​ Risk-free interest rate ​   4.2 %   Expected volatility ​   88.0 %   Dividend yield ​   — %   ​

LOSS PER SHARE	9 Months Ended
	Sep. 30, 2024
LOSS PER SHARE
LOSS PER SHARE	16.     LOSS PER SHARE The Company’s basic loss per common share is computed by dividing the net loss by the weighted-average number of shares of common stock outstanding during the period. The Company’s restricted stock awards (non-vested shares) are issued and outstanding at the time of grant but are excluded from the Company’s computation of weighted-average shares outstanding in the determination of basic loss per share until vesting occurs. A net loss cannot be diluted, so when the Company is in a net loss position, basic and diluted loss per common share are the same. If the Company achieves profitability in the future, the denominator of a diluted earnings per common share calculation will include both the weighted average number of shares outstanding and the number of common stock equivalents, if the inclusion of such common stock equivalents would be dilutive. Dilutive common stock equivalents potentially include warrants, stock options, non-vested restricted stock units and non-vested performance restricted stock units (“PRSUs”) using the treasury stock method, along with the effect, if any, from the potential conversion of outstanding securities, such as convertible preferred stock. The following potentially dilutive securities outstanding as of September 30, 2024 and 2023 have been excluded from the denominator of the diluted loss per share of common stock outstanding calculation (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30,  ​ ​      2024      2023 ​ Stock options ​ 1,238 ​ 1,271 ​ Non-vested PRSUs   395   395 ​ Non-vested restricted stock units   2,879   3,239 ​ Common stock warrants   1,146   41 ​ ​

SHARE-BASED COMPENSATION	9 Months Ended
	Sep. 30, 2024
SHARE-BASED COMPENSATION
SHARE-BASED COMPENSATION	17.     SHARE-BASED COMPENSATION The amount of share-based compensation expense recognized by the Company by location in its statements of operations for the three and nine months ended September 30, 2024 and 2023 is as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​      Three Months Ended September 30,  ​ Nine Months Ended September 30,  ​ ​ ​ 2024      2023      2024      2023 ​ Cost of revenues ​ $ 35 ​ $ 38 ​ $ 106 ​ ​ 109 ​ Sales and marketing ​   380 ​   590 ​   1,089 ​ ​ 1,946 ​ General and administrative ​   807 ​   1,052 ​   2,560 ​ ​ 3,134 ​ Research and development ​   197 ​   175 ​   565 ​ ​ 504 ​ Total ​ $ 1,419 ​ $ 1,855 ​ $ 4,320 ​ $ 5,693 ​ ​ 2018 Equity Incentive Plan In June 2018, the Company adopted the 2018 Equity Incentive Plan, (the “2018 Plan”), which authorized the issuance of up to 1.4 million shares, subject to an annual 4% increase based on the number of shares of common stock outstanding, in the form of restricted stock, stock appreciation rights and stock options to the Company’s directors, employees and consultants. The amount and terms of grants are determined by the Company’s board of directors. All stock options granted to date have had exercise prices equal to the fair value, as determined by the closing price as reported by the Nasdaq Global Market, of the underlying common stock on the date of grant. The contractual term of stock options is up to 10 years, and stock options are exercisable in cash or as otherwise determined by the board of directors. Generally, stock options vest 25% upon the first anniversary of the date of grant and the remainder ratably monthly thereafter for 36 months. Restricted stock units generally vest ratably in three equal installments on the first, second and third anniversaries of the grant date. PRSUs generally vest based on appreciation of the Company’s common stock to a certain price as determined by the Company’s board of directors measured using a trailing 30-day volume-weighted average price of a share of the Company’s common stock. The fair value of the PRSU awards are determined using a risk neutral Monte Carlo simulation valuation model. As of September 30, 2024, there were 0.7 million shares available for future issuance under the 2018 Plan. 2020 Inducement Incentive Plan In December 2020, the Company adopted the 2020 Inducement Incentive Plan (the “2020 Plan”), which authorized the issuance of up to 0.4 million shares, subject to increase by approval of the Company’s board of directors, in the form of stock options, stock appreciation rights, restricted stock awards, restricted stock unit awards, performance stock awards and other stock awards to eligible employees who satisfy the standards for inducement grants under Nasdaq Global Market rules. In March 2022, the Company’s board of directors approved an additional 0.5 million shares for the issuance under the 2020 Plan. An individual who previously served as an employee or director of the Company is not eligible to receive awards under the 2020 Plan. The amount and terms of grants are determined by the Company’s board of directors. As of September 30, 2024, there were 0.1 million shares available for future issuance under the 2020 Plan. Stock Options The following table summarizes the Company’s stock option activity for the nine months ended September 30, 2024: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​                     ​      Weighted Aggregate ​ ​ Number of ​ Weighted ​ average ​ average ​ ​ Shares under ​ average ​ Remaining ​ Intrinsic ​ ​ Option ​ Exercise Price ​ Contractual ​ Value ​ ​ (in thousands) ​ per Option ​ Life (in years) ​ (in thousands) Outstanding at December 31, 2023   1,270 ​ $ 3.90   ​   ​ ​ Granted   — ​ $ —        ​    Exercised   (2) ​ $ 0.96   ​   ​    Forfeited and Expired   (30) ​ $ 9.97        ​    Outstanding at September 30, 2024   1,238 ​ $ 3.75   5.3   $ — Exercisable at September 30, 2024   1,238 ​ $ 3.75   5.3   $ — Vested and expected to vest at September 30, 2024   1,238 ​ $ 3.75   5.3   $ — ​ The Company recognized share-based compensation expense related to stock options of $0.0 million and $0.1 million for the three months ended September 30, 2024 and 2023, respectively, and $0.1 million and $0.3 million for the nine months ended September 30, 2024 and 2023, respectively. As of September 30, 2024, there was no remaining unrecognized compensation cost related to non-vested stock options. For the nine months ended September 30, 2024 the Company did not grant stock options. Restricted Stock Units and PRSUs The following table summarizes the Company’s restricted stock unit and PRSU activity for September 30, 2024: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​      Non-vested      ​ Weighted      Non-vested      ​ Weighted ​ ​ Restricted ​ ​ average ​ PRSUs ​ ​ average ​ ​ Stock Units ​ ​ Grant-date ​ ​ ​ ​ Grant-date ​ ​ (in thousands) ​ ​ Fair Value ​ (in thousands) ​ ​ Fair Value Non-vested at December 31, 2023 ​ 2,965 ​ $ 4.37   395 ​ $ 6.77 Granted   1,593 ​ $ 3.18   — ​ $ — Vested   (1,406) ​ $ 4.35   — ​ $ — Forfeited   (273) ​ $ 4.21   — ​ $ — Non-vested at September 30, 2024   2,879 ​ $ 3.74   395 ​ $ 6.77 ​ The Company recognized $1.4 million and $1.8 million in share-based compensation expense related to the restricted stock units and PRSUs for the three months ended September 30, 2024 and 2023, respectively, and $4.2 million and $5.3 million for the nine months ended September 30, 2024 and 2023, respectively. As of September 30, 2024, there was $7.4 million of unrecognized compensation cost related to non-vested restricted stock units and PRSUs, which the Company expects to recognize over a weighted-average period of 1.9 years. The total fair value at the vesting date of restricted stock units and PRSUs vested during the nine months ended September 30, 2024 was $4.3 million. The Company did not grant PRSUs during the nine months ended September 30, 2024.

COMMITMENTS AND CONTINGENCIES	9 Months Ended
	Sep. 30, 2024
COMMITMENTS AND CONTINGENCIES
COMMITMENTS AND CONTINGENCIES	18.     COMMITMENTS AND CONTINGENCIES Legal Matters The Company is subject from time to time to various claims and legal actions arising during the ordinary course of its business. Management believes that there are currently no claims or legal actions that would reasonably be expected to have a material adverse effect on the Company’s results of operations, financial condition, or cash flows.

SEGMENT INFORMATION	9 Months Ended
	Sep. 30, 2024
SEGMENT INFORMATION
SEGMENT INFORMATION	19.     SEGMENT INFORMATION Operating segments are defined as components of an enterprise about which separate discrete information is available for evaluation by the chief operating decision maker, or decision-making group, in deciding how to allocate resources and in assessing performance. The Company currently operates in one business segment as it is managed and operated as one business. A single management team that reports to the chief operating decision maker comprehensively manages the entire business. The Company does not operate any material separate lines of business or separate business entities with respect to its products or product development. ​ ​

GOVERNMENT ASSISTANCE	9 Months Ended
	Sep. 30, 2024
GOVERNMENT ASSISTANCE
GOVERNMENT ASSISTANCE	20.     GOVERNMENT ASSISTANCE Employee Retention Credit ​ The Coronavirus Aid, Relief and Economic Security Act provided an Employee Retention Credit (the “ERC”), which was a refundable tax credit related to certain payroll taxes. The Company applied the grant model and determined that the criteria for recognition of the ERC was met during the year ended December 31, 2023 based on the Company’s determination of eligibility and filing of the ERC claim. As of September 30, 2024, the $2.9 million ERC receivable is reported within “Prepaid expenses and other current assets” on the Company’s balance sheets.

SUBSEQUENT EVENTS	9 Months Ended
	Sep. 30, 2024
SUBSEQUENT EVENTS
SUBSEQUENT EVENTS	21.     SUBSEQUENT EVENTS ​ On October 3, 2024, the Company received a deficiency letter from the Nasdaq Listing Qualifications Department of The Nasdaq Stock Market LLC (the “Staff”) notifying the Company that, for the 30 consecutive business days prior to such letter, the closing bid price for the Company’s common stock had been below the minimum $1.00 per share required for continued listing on The Nasdaq Global Market pursuant to Nasdaq Listing Rule 5450(a)(1) (the “Minimum Bid Price Requirement”). ​ In accordance with Nasdaq Listing Rule 5810(c)(3)(A), the Company has been given until April 1, 2025 to regain compliance with the Minimum Bid Price Requirement. If at any time before April 1, 2025, the bid price of the Company’s common stock closes at $1.00 per share or more for a minimum of 10 consecutive business days, the Staff will provide written confirmation that the Company has achieved compliance. ​ If the Company does not regain compliance with the Minimum Bid Price Requirement by April 1, 2025, the Company may be afforded a second 180 calendar day period to regain compliance. To qualify, the Company would be required to transfer to The Nasdaq Capital Market and meet the continued listing requirement for market value of publicly held shares and all other initial listing standards for The Nasdaq Capital Market, except for the Minimum Bid Price Requirement. In addition, the Company would be required to notify Nasdaq of its intent to cure the deficiency during the second compliance period. Following a transfer to The Nasdaq Capital Market, the Company will be afforded a second 180 calendar day period to regain compliance, unless it does not appear to Nasdaq that it is possible for the Company to cure the deficiency. If the Company does not regain compliance with the Minimum Bid Price Requirement by the end of the compliance period (or the second compliance period, if applicable), the Company’s common stock will become subject to delisting. In the event that the Company receives notice that its common stock is being delisted, the Nasdaq listing rules permit the Company to appeal a delisting determination by the Staff to a hearings panel. ​ The Company intends to monitor the closing bid price of its common stock and may, if appropriate, consider available options to regain compliance with the Minimum Bid Price Requirement, including initiating a reverse stock split. However, there can be no assurance that the Company will be able to regain compliance with the Minimum Bid Price Requirement or will otherwise be in compliance with other Nasdaq listing rules. ​ On November 8, 2024, Greenbrook Shareholders approved the Greenbrook Arrangement Resolution and Neuronetics Stockholders approved the Neuronetics Charter Amendment Proposal and Neuronetics Share Issuance Proposal (as such terms are defined in the Company’s Definitive Proxy Statement on Schedule 14A filed on October 4, 2024). ​ On November 8, 2024, the Company implemented a strategic reorganization to sharpen the Company’s focus on growth. This reorganization resulted in a workforce reduction of approximately 10% and will focus the Company’s commercial strategy on the highest growth drivers. The reorganization will also improve operational efficiency, with anticipated post-reorganization annualized cash savings of more than $3.5 million. The Company expects to recognize approximately $0.4 million in total expenses for severance and related benefits for employees impacted by the reduction in force, consisting primarily of severance payments and related benefits. The Company may also incur other charges or cash expenditures not currently contemplated due to events that may occur as a result of, or associated with, the reduction in force.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	9 Months Ended
	Sep. 30, 2024
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Interim Financial Statements	Interim Financial Statements The accompanying unaudited interim financial statements have been prepared from the books and records of the Company in accordance with U.S. GAAP for interim financial information and Rule 10-01 of Regulation S-X promulgated by the U.S. Securities and Exchange Commission (the “SEC”), which permit reduced disclosures for interim periods. All adjustments, consisting only of normal recurring adjustments, necessary for a fair presentation of the accompanying balance sheets and statements of operations and stockholders’ equity and cash flows have been made. Although these interim financial statements do not include all of the information and footnotes required for complete annual financial statements, management believes the disclosures are adequate to make the information presented not misleading. Unaudited interim results of operations and cash flows for the three and nine months ended September 30, 2024 are not necessarily indicative of the results that may be expected for the full year. Unaudited interim financial statements and footnotes should be read in conjunction with the audited financial statements and footnotes included in the Company’s Annual Report on Form 10-K filed with the SEC on March 8, 2024, wherein a more complete discussion of significant accounting policies and certain other information can be found.
Use of Estimates	Use of Estimates The preparation of financial statements in accordance with U.S. GAAP and the rules and regulations of the SEC, requires the use of estimates and assumptions, based on judgments considered reasonable, which affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The Company bases its estimates and assumptions on historical experience, known trends and events and various other factors that management believes to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Although management believes its estimates and assumptions are reasonable when made, they are based upon information available at the time they are made. Management evaluates the estimates and assumptions on an ongoing basis and, if necessary, makes adjustments. Due to the risks and uncertainties involved in the Company’s business and evolving market conditions, and given the subjective element of the estimates and assumptions made, actual results may differ materially from estimated results.

FAIR VALUE MEASUREMENT AND FINANCIAL INSTRUMENTS (Tables)	9 Months Ended
	Sep. 30, 2024
FAIR VALUE MEASUREMENT AND FINANCIAL INSTRUMENTS
Schedule of carrying amounts and fair values of financial instruments	The following tables set forth the carrying amounts and fair values of the Company’s financial instruments as of September 30, 2024 and December 31, 2023 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​      September 30, 2024 ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurement Based on ​ ​ ​ ​ ​ ​ ​ ​ Quoted ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Prices In ​ other ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ Active ​ Observable ​ Unobservable ​ ​ Carrying ​ ​ ​ ​ Markets ​ Inputs ​ Inputs ​      Amount      Fair Value      (Level 1)      (Level 2)      (Level 3) Assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Money market funds (cash equivalents) ​ $ 13,488 ​ $ 13,488 ​ $ 13,488 ​ $ — ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​      December 31, 2023 ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurement Based on ​ ​ ​ ​ ​ ​ ​ ​ Quoted ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Prices In ​ other ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ Active ​ Observable ​ Unobservable ​ ​ Carrying ​ ​ ​ ​ Markets ​ Inputs ​ Inputs ​ ​ Amount ​ Fair Value ​ (Level 1) ​ (Level 2) ​ (Level 3) Assets      ​         ​         ​         ​         ​    Money market funds (cash equivalents) ​ $ 27,507 ​ $ 27,507 ​ $ 27,507 ​ $ — ​ $ — ​

ACCOUNTS RECEIVABLE (Tables)	9 Months Ended
	Sep. 30, 2024
ACCOUNTS RECEIVABLE
Schedule of composition of accounts receivable, net	The following table presents the composition of accounts receivable, net, as of September 30, 2024 and December 31, 2023 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30,  ​ December 31,  ​ ​      2024      2023 ​ Gross accounts receivable - trade ​ $ 18,825 ​ $ 16,577 ​ Less: Allowances for credit losses ​   (2,000) ​   (795) ​ Accounts receivable, net ​ $ 16,825 ​ $ 15,782 ​ ​

PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE (Tables)	9 Months Ended
	Sep. 30, 2024
PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE
Schedule of composition of property and equipment, net	The following table presents the composition of property and equipment, net, as of September 30, 2024 and December 31, 2023 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30,  ​ December 31,  ​ ​      2024      2023 ​ Laboratory equipment ​ $ 705 ​ $ 702 ​ Office equipment ​   495 ​   495 ​ Auto ​ ​ 23 ​ ​ 23 ​ Computer equipment and software ​   1,136 ​   1,082 ​ Manufacturing equipment ​   575 ​   551 ​ Leasehold improvements ​   1,463 ​   1,436 ​ Rental equipment ​   598 ​   542 ​ Property and equipment, gross ​   4,995 ​   4,831 ​ Less: Accumulated depreciation ​   (3,356) ​   (2,822) ​ Property and equipment, net ​ $ 1,639 ​ $ 2,009 ​

LEASES (Tables)	9 Months Ended
	Sep. 30, 2024
LEASES
Schedule of supplemental cash flow information as a lessee related to leases	The following table presents the supplemental cash flow information as a lessee related to leases (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​      Nine Months Ended ​ ​ ​ September 30, 2024      September 30, 2023 ​ Cash paid for amounts included in the measurement of lease liabilities:   ​      ​    ​ Operating cash flows from operating leases ​ $ 827 ​ $ 807 ​
Schedule of future payments of operating lease liabilities	The following table sets forth by year the required future payments of operating lease liabilities (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2024 ​ Remainder of 2024 ​ $ 221 ​ 2025 ​ ​ 898 ​ 2026 ​   921 ​ 2027 ​   882 ​ 2028 ​   116 ​ Total lease payments ​   3,038 ​ Less imputed interest ​   (343) ​ Present value of operating lease liabilities ​ $ 2,695 ​
Schedule of profit recognized on sales-type leases	The following table sets forth the profit recognized on sales-type leases (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30,  ​ Nine Months Ended September 30,  ​ ​      2024      2023      2024      2023 ​ Profit recognized at commencement, net ​ $ 21 ​ $ 13 ​ $ 45 ​ $ 60 ​ Interest income ​   — ​   — ​   — ​   — ​ Total sales-type lease income ​ $ 21 ​ $ 13 ​ $ 45 ​ $ 60 ​
Schedule of maturity analysis of the undiscounted lease receivables related to sales-type leases	The following table sets forth a maturity analysis of the undiscounted lease receivables related to sales-type leases (in thousands): ​ ​ ​ ​ ​ ​ ​      September 30, 2024 ​ Remainder of 2024 ​ $ 232 ​ 2025 ​ ​ 402 ​ 2026 ​   78 ​ Total sales-type lease receivables ​ $ 712 ​

ACCRUED EXPENSES (Tables)	9 Months Ended
	Sep. 30, 2024
ACCRUED EXPENSES
Schedule of the composition of accrued expenses	The following table presents the composition of accrued expenses as of September 30, 2024 and December 31, 2023 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​      September 30,       December 31,  ​ ​ 2024 ​ 2023 Compensation and related benefits ​ $ 6,769 ​ $ 8,003 Consulting and professional fees ​   1,702 ​   488 Research and development expenses ​   556 ​   260 Sales and marketing expenses ​ ​ 397 ​ ​ 1,760 Warranty ​   237 ​   213 Sales and other taxes payable ​   714 ​   818 Other ​   1,054 ​   1,053 Accrued expenses ​ $ 11,429 ​ $ 12,595 ​

REVENUE AND DEFERRED REVENUE (Tables)	9 Months Ended
	Sep. 30, 2024
Schedule of percentages of deferred revenue by year	As of September 30, 2024, the Company expects to recognize approximately the following percentages of deferred revenue by year: ​ ​ ​ ​ ​ ​      Revenue   Year: ​ Recognition   Remainder of 2024 ​ 43 % 2025   54 % 2026   2 % 2027   1 % Total   100 %
Schedule of revenue generated in geographic regions for years indicated	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Revenues by Geography   ​ ​ Three Months Ended September 30,    ​ ​ 2024 ​ 2023   ​ ​ ​ ​ ​ % of ​ ​ ​ ​ % of   ​ ​ Amount ​ Revenues ​ Amount ​ Revenues   ​ ​ (in thousands, except percentages) ​ U.S.      $ 17,922      97 %   $ 17,211      96 % International ​   608   3 %     673   4 % Total revenues ​ $ 18,530   100 %   $ 17,884   100 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Revenues by Geography   ​ ​ Nine Months Ended September 30,    ​ ​ 2024 ​ 2023   ​ ​ ​ ​ ​ % of ​ ​ ​ ​ % of   ​ ​ Amount ​ Revenues ​ Amount ​ Revenues   ​ ​ (in thousands, except percentages) ​ U.S.      $ 50,845      97 %   $ 49,464      97 % International ​   1,552   3 %     1,570   3 % Total revenues ​ $ 52,397   100 %   $ 51,034   100 %
U.S.
Schedule of revenue generated in product category for years indicated	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Revenues by Product Category   ​ ​ Three Months Ended September 30,    ​ ​ 2024 ​ 2023   ​ ​ ​ ​ ​ % of ​ ​ ​ % of   ​      Amount      Revenues      Amount      Revenues   ​   (in thousands, except percentages) ​ NeuroStar Advanced Therapy System ​ $ 4,108 ​ 23 %   $ 3,597 ​ 21 % Treatment sessions ​   13,326   74 %   13,060   76 % Other ​   488   3 %   554   3 % Total U.S. revenues ​ $ 17,922   100 % $ 17,211   100 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Revenues by Product Category   ​ ​ Nine Months Ended September 30,    ​ ​ 2024 ​ 2023   ​ ​ ​ ​ ​ % of ​ ​ ​ % of   ​      Amount      Revenues      Amount      Revenues   ​   (in thousands, except percentages) ​ NeuroStar Advanced Therapy System ​ $ 11,418 ​ 22 %   $ 11,936 ​ 24 % Treatment sessions ​   37,974   75 %   36,018   73 % Other ​   1,453   3 %   1,510   3 % Total U.S. revenues ​ $ 50,845   100 % $ 49,464   100 %
International
Schedule of revenue generated in product category for years indicated	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ International Revenues by Product Category   ​ ​ Three Months Ended September 30,    ​ ​ 2024 ​ 2023   ​ ​ ​ ​ ​ % of ​ ​ ​ ​ % of   ​      Amount      Revenues      Amount      Revenues   ​   (in thousands, except percentages) ​ NeuroStar Advanced Therapy System ​ $ 244   40 %   $ 258   38 % Treatment sessions ​   90   15 %     280   42 % Other ​   274   45 %     135   20 % Total international revenues ​ $ 608   100 %   $ 673   100 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ International Revenues by Product Category   ​ ​ Nine Months Ended September 30,    ​ ​ 2024 ​ 2023   ​ ​ ​ ​ ​ % of ​ ​ ​ ​ % of   ​      Amount      Revenues      Amount      Revenues   ​   (in thousands, except percentages) ​ NeuroStar Advanced Therapy System ​ $ 502   32 %   $ 573   36 % Treatment sessions ​   400   26 %     589   38 % Other ​   650   42 %     408   26 % Total International revenues ​ $ 1,552   100 %   $ 1,570   100 % ​

DEBT (Tables)	9 Months Ended
	Sep. 30, 2024
DEBT
Schedule of composition of debt	The following table presents the composition of debt as of September 30, 2024 and December 31, 2023 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30,  ​ December 31,  ​ ​      2024      2023 ​ Outstanding principal ​ $ 50,000 ​ $ 60,000 ​ Accrued final payment fees ​   — ​   1,856 ​ Less debt discounts ​   (3,998) ​   (2,573) ​ Total debt, net ​   46,002 ​   59,283 ​ Less current portion ​   — ​   — ​ Long-term debt, net ​ $ 46,002 ​ $ 59,283 ​

COMMON STOCK (Tables)	9 Months Ended
	Sep. 30, 2024
COMMON STOCK
Schedule of common stock issued and reserved for issuance	The following table summarizes the total number of shares of the Company’s common stock issued and reserved for issuance as of September 30, 2024 and December 31, 2023 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​      September 30, 2024      December 31, 2023 ​ Shares of common stock issued   30,317   29,092 ​ Shares of common stock reserved for issuance for:           ​ Common stock warrants outstanding   1,146   41 ​ Stock options outstanding   1,238   1,270 ​ Restricted stock units outstanding   3,274   3,360 ​ Shares available for grant under stock incentive plans   852   978 ​ Shares available for sale under employee stock purchase plan   1,624   1,335 ​ Total shares of common stock issued and reserved for issuance   38,451   36,076 ​
Schedule of outstanding warrants	The following tables summarizes the Company’s outstanding common stock warrants as of September 30, 2024, and December 31, 2023: ​ ​ ​ ​ ​ ​ ​ September 30, 2024           ​           Warrants           ​           Outstanding ​ ​ ​ ​ ​ (in thousands) ​ Exercise Price ​ Expiration Date 1,125 ​ $ 0.94 ​ July-2034 21 ​ $ 9.73   Dec-2024 1,146 ​           ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023           ​           Warrants           ​           Outstanding ​ ​ ​ ​ ​ (in thousands) ​ Exercise Price ​ Expiration Date 20 ​ $ 9.73   Mar-2024 21 ​ $ 9.73   Dec-2024 41 ​
Schedule of perceptive warrants using the black-scholes pricing model	The Company valued warrants issued during the three and nine months ended September 30, 2024 using the Black-Scholes option pricing model using the following assumptions: ​ ​ ​ ​ ​ ​ ​      2024      Estimated fair value of common stock ​ $ 1.61 ​ Exercise price ​ $ 1.92 ​ Expected term (in years) ​   9.4 ​ Risk-free interest rate ​   4.2 %   Expected volatility ​   88.0 %   Dividend yield ​   — %   ​

LOSS PER SHARE (Tables)	9 Months Ended
	Sep. 30, 2024
LOSS PER SHARE
Schedule of potentially dilutive securities outstanding excluded from diluted loss per share calculation	The following potentially dilutive securities outstanding as of September 30, 2024 and 2023 have been excluded from the denominator of the diluted loss per share of common stock outstanding calculation (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30,  ​ ​      2024      2023 ​ Stock options ​ 1,238 ​ 1,271 ​ Non-vested PRSUs   395   395 ​ Non-vested restricted stock units   2,879   3,239 ​ Common stock warrants   1,146   41 ​ ​

SHARE-BASED COMPENSATION (Tables)	9 Months Ended
	Sep. 30, 2024
SHARE-BASED COMPENSATION
Schedule of share-based compensation expense	The amount of share-based compensation expense recognized by the Company by location in its statements of operations for the three and nine months ended September 30, 2024 and 2023 is as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​      Three Months Ended September 30,  ​ Nine Months Ended September 30,  ​ ​ ​ 2024      2023      2024      2023 ​ Cost of revenues ​ $ 35 ​ $ 38 ​ $ 106 ​ ​ 109 ​ Sales and marketing ​   380 ​   590 ​   1,089 ​ ​ 1,946 ​ General and administrative ​   807 ​   1,052 ​   2,560 ​ ​ 3,134 ​ Research and development ​   197 ​   175 ​   565 ​ ​ 504 ​ Total ​ $ 1,419 ​ $ 1,855 ​ $ 4,320 ​ $ 5,693 ​
Schedule of stock option activity	The following table summarizes the Company’s stock option activity for the nine months ended September 30, 2024: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​                     ​      Weighted Aggregate ​ ​ Number of ​ Weighted ​ average ​ average ​ ​ Shares under ​ average ​ Remaining ​ Intrinsic ​ ​ Option ​ Exercise Price ​ Contractual ​ Value ​ ​ (in thousands) ​ per Option ​ Life (in years) ​ (in thousands) Outstanding at December 31, 2023   1,270 ​ $ 3.90   ​   ​ ​ Granted   — ​ $ —        ​    Exercised   (2) ​ $ 0.96   ​   ​    Forfeited and Expired   (30) ​ $ 9.97        ​    Outstanding at September 30, 2024   1,238 ​ $ 3.75   5.3   $ — Exercisable at September 30, 2024   1,238 ​ $ 3.75   5.3   $ — Vested and expected to vest at September 30, 2024   1,238 ​ $ 3.75   5.3   $ —
Schedule of restricted stock units and performance restricted stock units activity	The following table summarizes the Company’s restricted stock unit and PRSU activity for September 30, 2024: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​      Non-vested      ​ Weighted      Non-vested      ​ Weighted ​ ​ Restricted ​ ​ average ​ PRSUs ​ ​ average ​ ​ Stock Units ​ ​ Grant-date ​ ​ ​ ​ Grant-date ​ ​ (in thousands) ​ ​ Fair Value ​ (in thousands) ​ ​ Fair Value Non-vested at December 31, 2023 ​ 2,965 ​ $ 4.37   395 ​ $ 6.77 Granted   1,593 ​ $ 3.18   — ​ $ — Vested   (1,406) ​ $ 4.35   — ​ $ — Forfeited   (273) ​ $ 4.21   — ​ $ — Non-vested at September 30, 2024   2,879 ​ $ 3.74   395 ​ $ 6.77

DESCRIPTION OF BUSINESS (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
DESCRIPTION OF BUSINESS
Cash and cash equivalents	$ 20,867		$ 59,677
Accumulated deficit	407,127		376,081
Cash flows from operating activities	22,401	$ 34,171	$ 32,000
$60.0 Million Credit Facility | Oxford Finance LLC
DESCRIPTION OF BUSINESS
Borrowings outstanding under credit facility	$ 50,000
Credit facility maturity date	Jul. 25, 2029

FAIR VALUE MEASUREMENT AND FINANCIAL INSTRUMENTS - Schedule of Carrying Amounts and Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Assets
Investment, Type [Extensible Enumeration]	us-gaap:MoneyMarketFundsMember	us-gaap:MoneyMarketFundsMember
Carrying Amount
Assets
Total assets	$ 13,488	$ 27,507
Fair Value
Assets
Total assets	13,488	27,507
Quoted Prices In Active Markets (Level 1)
Assets
Total assets	$ 13,488	$ 27,507

ACCOUNTS RECEIVABLE - Composition of Accounts Receivable, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
ACCOUNTS RECEIVABLE
Gross accounts receivable - trade	$ 18,825	$ 16,577
Less: Allowances for credit losses	(2,000)	(795)
Accounts receivable, net	$ 16,825	$ 15,782

PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE - Summary of Composition of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE
Property and equipment, gross	$ 4,995	$ 4,831
Less: Accumulated depreciation	(3,356)	(2,822)
Property and equipment, net	1,639	2,009
Laboratory Equipment
PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE
Property and equipment, gross	705	702
Office Equipment
PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE
Property and equipment, gross	495	495
Auto
PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE
Property and equipment, gross	23	23
Computer Equipment and Software
PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE
Property and equipment, gross	1,136	1,082
Manufacturing Equipment
PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE
Property and equipment, gross	575	551
Leasehold Improvements
PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE
Property and equipment, gross	1,463	1,436
Rental Equipment
PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE
Property and equipment, gross	598	542
Property and equipment, net	$ 300	$ 300

PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE
Depreciation and amortization expense	$ 0.5	$ 0.5	$ 1.6	$ 1.5
Prepaid expenses and other current assets
PROPERTY AND EQUIPMENT AND CAPITALIZED SOFTWARE
Capitalized software cost, net	$ 4.5		$ 4.5		$ 4.2

NOTES RECEIVABLE - Additional Information (Details) - Secured Promissory Note $ in Millions		3 Months Ended		9 Months Ended
	Mar. 31, 2023 USD ($) D	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
If Maker's Common Shares Are Not Traded On Any Stock Markets
NOTES RECEIVABLE
Discount rate	20.00%
Greenbrook TMS Inc
NOTES RECEIVABLE
Principal amount of notes receivable	$ 6.0
Term of notes receivable	4 years
Notes receivable outstanding		$ 4.0		$ 4.0		$ 5.2
Percentage of unpaid amount	200.00%
Greenbrook TMS Inc | If Maker's Common Shares Are Traded On Nasdaq Stock Market
NOTES RECEIVABLE
Discount rate	20.00%
Number of day volume-weighted average closing price | D	30
Greenbrook TMS Inc | If Maker's Common Shares Are Traded On Stock Markets Other Than Nasdaq
NOTES RECEIVABLE
Discount rate	20.00%
Number of day volume-weighted average closing price | D	30
Greenbrook TMS Inc | Secured Overnight Financing Rate
NOTES RECEIVABLE
Interest rate (as a percent)	7.65%
Success TMS | Other income, net
NOTES RECEIVABLE
Interest income recognized		$ 0.1	$ 0.2	$ 0.5	$ 0.4

LEASES - Additional Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($) ft²	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) ft²	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
LEASES
Lessee, finance lease, lease not yet commenced, description			The Company does not currently have any finance leases or executed leases that have not yet commenced.
Operating lease, rent expense, net	$ 200	$ 200	$ 600	$ 600
Operating lease, weighted-average remaining lease term	3 years 3 months 18 days		3 years 3 months 18 days
Operating lease, weighted-average discount rate	7.20%		7.20%
Carrying amount of lease receivables	$ 700		$ 700
Unguaranteed residual assets	0		0
Operating lease income	40	20	100	100
Property and equipment, net	$ 1,639		$ 1,639		$ 2,009
NeuroStar Advanced Therapy Systems | Minimum
LEASES
Lessor sales-type lease, Term	3 years		3 years
NeuroStar Advanced Therapy Systems | Maximum
LEASES
Lessor sales-type lease, Term	4 years		4 years
Headquarters and Office Equipment, Including Copiers
LEASES
Area of lease facility | ft²	32,000		32,000
Rental Equipment
LEASES
Property and equipment, net	$ 300		$ 300		$ 300
Rental equipment depreciation expense	$ 20	$ 20	$ 70	$ 70
Charlotte, North Carolina
LEASES
Area of lease facility | ft²	9,600		9,600

LEASES - Schedule of Supplemental Cash Flow Information as Lessee Related to Leases (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 827	$ 807

LEASES - Schedule of Future Payments of Operating Lease Liabilities (Details) $ in Thousands	Sep. 30, 2024 USD ($)
LEASES
Remainder of 2024	$ 221
2025	898
2026	921
2027	882
2028	116
Total lease payments	3,038
Less imputed interest	(343)
Present value of operating lease liabilities	$ 2,695

LEASES - Schedule of Profit Recognized on Sales-type Leases (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
LEASES
Profit recognized at commencement, net	$ 21	$ 13	$ 45	$ 60
Total sales-type lease income	$ 21	$ 13	$ 45	$ 60

LEASES - Schedule of Maturity Analysis of Undiscounted Lease Receivables Related to Sales-type Leases (Details) $ in Thousands	Sep. 30, 2024 USD ($)
LEASES
Remainder of 2024	$ 232
2025	402
2026	78
Total sales-type lease receivables	$ 712

PREPAID COMMISSION EXPENSE - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
PREPAID COMMISSION EXPENSE
Amortization period of deferred commissions			7 years
Amortization expense	$ 0.7	$ 0.6	$ 2.1	$ 1.7

ACCRUED EXPENSES - Summary of Composition of Accrued Expenses (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
ACCRUED EXPENSES
Compensation and related benefits	$ 6,769	$ 8,003
Consulting and professional fees	1,702	488
Research and development expenses	556	260
Sales and marketing expenses	397	1,760
Warranty	237	213
Sales and other taxes payable	714	818
Other	1,054	1,053
Accrued expenses	$ 11,429	$ 12,595

REVENUE AND DEFERRED REVENUE - Summary of Percentages of Deferred Revenue by Year (Details)	Sep. 30, 2024
REVENUE AND DEFERRED REVENUE
Revenue, remaining performance obligation	100.00%
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Start Date [Axis]: 2024-10-01
REVENUE AND DEFERRED REVENUE
Revenue, remaining performance obligation	43.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period	9 months
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Start Date [Axis]: 2025-01-01
REVENUE AND DEFERRED REVENUE
Revenue, remaining performance obligation	54.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Start Date [Axis]: 2026-01-01
REVENUE AND DEFERRED REVENUE
Revenue, remaining performance obligation	2.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Start Date [Axis]: 2027-01-01
REVENUE AND DEFERRED REVENUE
Revenue, remaining performance obligation	1.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year

REVENUE AND DEFERRED REVENUE - Additional Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($) customer	Sep. 30, 2023 USD ($) customer	Sep. 30, 2024 USD ($) customer	Sep. 30, 2023 USD ($) customer	Dec. 31, 2023 USD ($)
Disaggregation of Revenue [Line Items]
Revenue recognized	$ 300	$ 400	$ 1,400	$ 1,700
Number of customer accounted for more than 10% of revenues | customer	1	1	1	1
Accounts receivable	$ 16,825		$ 16,825		$ 15,782
Customer 1
Disaggregation of Revenue [Line Items]
Notes receivable	4,000		4,000		5,200
Credit concentration risk | Customer 1
Disaggregation of Revenue [Line Items]
Accounts receivable	$ 1,900		$ 1,900		$ 1,900
Revenue | Customer concentration risk | Customer 1
Disaggregation of Revenue [Line Items]
Percentage of Revenues	13.00%	15.00%	14.00%	17.00%

REVENUE AND DEFERRED REVENUE - Summary of Revenue Generated in Geographic Regions for Years Indicated (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
REVENUE AND DEFERRED REVENUE
Revenues	$ 18,530	$ 17,884	$ 52,397	$ 51,034
Revenue | Geographic Concentration
REVENUE AND DEFERRED REVENUE
Revenues	$ 18,530	$ 17,884	$ 52,397	$ 51,034
Percentage of Revenues	100.00%	100.00%	100.00%	100.00%
Revenue | U.S. | Geographic Concentration
REVENUE AND DEFERRED REVENUE
Revenues	$ 17,922	$ 17,211	$ 50,845	$ 49,464
Percentage of Revenues	97.00%	96.00%	97.00%	97.00%
Revenue | International | Geographic Concentration
REVENUE AND DEFERRED REVENUE
Revenues	$ 608	$ 673	$ 1,552	$ 1,570
Percentage of Revenues	3.00%	4.00%	3.00%	3.00%

REVENUE AND DEFERRED REVENUE - Summary of Revenue Generated in Product Category for Years Indicated (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
REVENUE AND DEFERRED REVENUE
Revenues	$ 18,530	$ 17,884	$ 52,397	$ 51,034
Product Category | U.S. | Revenue
REVENUE AND DEFERRED REVENUE
Revenues	$ 17,922	$ 17,211	$ 50,845	$ 49,464
Percentage of Revenues	100.00%	100.00%	100.00%	100.00%
Product Category | U.S. | Revenue | NeuroStar Advanced Therapy System
REVENUE AND DEFERRED REVENUE
Revenues	$ 4,108	$ 3,597	$ 11,418	$ 11,936
Percentage of Revenues	23.00%	21.00%	22.00%	24.00%
Product Category | U.S. | Revenue | Treatment Sessions
REVENUE AND DEFERRED REVENUE
Revenues	$ 13,326	$ 13,060	$ 37,974	$ 36,018
Percentage of Revenues	74.00%	76.00%	75.00%	73.00%
Product Category | U.S. | Revenue | Other
REVENUE AND DEFERRED REVENUE
Revenues	$ 488	$ 554	$ 1,453	$ 1,510
Percentage of Revenues	3.00%	3.00%	3.00%	3.00%
Product Category | International | Revenue
REVENUE AND DEFERRED REVENUE
Revenues	$ 608	$ 673	$ 1,552	$ 1,570
Percentage of Revenues	100.00%	100.00%	100.00%	100.00%
Product Category | International | Revenue | NeuroStar Advanced Therapy System
REVENUE AND DEFERRED REVENUE
Revenues	$ 244	$ 258	$ 502	$ 573
Percentage of Revenues	40.00%	38.00%	32.00%	36.00%
Product Category | International | Revenue | Treatment Sessions
REVENUE AND DEFERRED REVENUE
Revenues	$ 90	$ 280	$ 400	$ 589
Percentage of Revenues	15.00%	42.00%	26.00%	38.00%
Product Category | International | Revenue | Other
REVENUE AND DEFERRED REVENUE
Revenues	$ 274	$ 135	$ 650	$ 408
Percentage of Revenues	45.00%	20.00%	42.00%	26.00%

DEBT - Summary of Composition of Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024	Feb. 29, 2024	Jan. 31, 2024	Dec. 31, 2023
DEBT
Outstanding principal	$ 50,000	$ 60,000	$ 60,000	$ 60,000	$ 60,000
Accrued final payment fees					1,856
Less debt discounts	(3,998)				(2,573)
Total debt, net	46,002				59,283
Long-term debt, net	$ 46,002				$ 59,283

DEBT - Additional Information (Details) $ in Thousands					3 Months Ended		9 Months Ended
	Jul. 25, 2024 USD ($) D tranche shares	Feb. 29, 2024 USD ($)	Jan. 31, 2024 USD ($)	Mar. 29, 2023 USD ($)	Sep. 30, 2024 USD ($) shares	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) shares	Sep. 30, 2023 USD ($)	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)	Oct. 03, 2023 USD ($)	Sep. 29, 2023 USD ($)
DEBT
Interest expense					$ 1,700	$ 1,200	$ 5,500	$ 3,600
Cash interest expense					1,600	1,100	4,900	3,100
Non-cash interest expense					100	$ 100	600	$ 500
Total borrowing amount		$ 60,000	$ 60,000		50,000		50,000		$ 60,000	$ 60,000
Debt Instrument, Covenant Compliance		On January 31, 2024 and February 29, 2024, the Company was not in compliance with its minimum net product revenue covenant under the SLR Facility. The Company was granted a waiver from SLR in the SLR Sixth Amendment for the covenant violations. The amount of borrowings affected by this noncompliance was $60 million	On January 31, 2024 and February 29, 2024, the Company was not in compliance with its minimum net product revenue covenant under the SLR Facility. The Company was granted a waiver from SLR in the SLR Sixth Amendment for the covenant violations. The amount of borrowings affected by this noncompliance was $60 million
Loss on extinguishment of debt					(4,427)		$ (4,427)
$22.5 Million Credit Facility | Term C Loan
DEBT
Line of credit facility, maximum borrowing capacity												$ 22,500
Borrowings outstanding under credit facility											$ 22,500
SLR Credit Facility
DEBT
Trailing twelve month net product revenue first threshold limit to pay exit fee				$ 100,000
Trailing twelve month net product revenue Second threshold limit to pay exit fee				$ 125,000
Solar investment corp
DEBT
Line of credit facility, maximum borrowing capacity	$ 60,000
Prepayment fees percentage				2.00%
Trailing twelve month net product revenue first threshold limit to pay exit fee				$ 100,000
Trailing twelve month net product revenue Second threshold limit to pay exit fee				$ 125,000
Percentage of exit fee for liquidation, dissolution, winding up or change of control of the Company				4.95%
Percentage of exit fee upon achievement of any trailing twelve month revenues				1.00%
Percentage of exit fee upon achievement of both trailing twelve month revenues				2.00%
Loss on extinguishment of debt					4,400
Early prepayment fees					1,200
Deferred financing expense					$ 3,200
Repayments of lines of credit	64,600
Principal repayments	60,000
Accrued interest	500
Final payment fee	3,000
Prepayment fee	1,200
Solar investment corp | Prepaid on or Before First Anniversary of Funding
DEBT
Prepayment fees percentage				3.00%
Solar investment corp | Prepaid After First and on or Before Second Anniversary of Funding
DEBT
Prepayment fees percentage				2.00%
Solar investment corp | Prepaid After Second Anniversary of Funding
DEBT
Prepayment fees percentage				1.00%
Solar investment corp | Term A Loan
DEBT
Interest rate during the period				3.95%
Solar investment corp | Term A Loan | Minimum
DEBT
Interest rate during the period				5.65%
Solar investment corp | Term C Loan
DEBT
Borrowings outstanding under credit facility				$ 2,500
Total borrowing amount											$ 60,000
Perceptive credit facility
DEBT
Line of credit facility, maximum borrowing capacity	$ 90,000
Term loans number of tranches | tranche	3
Basis spread on variable rate	7.00%
Threshold rate considered for calculating floating interest rate	4.50%
Number of warrants issued | shares	1,462,500
Warrant exercisable | shares					1,125,000		1,125,000
Number of days volume weighted average price prior to closing date | D	10
Number of days volume weighted average price on specific date | D	10
Perceptive credit facility | Prepaid on or Before First Anniversary of Funding
DEBT
Prepayment fees percentage	6.00%
Perceptive credit facility | Prepaid After First and on or Before Second Anniversary of Funding
DEBT
Prepayment fees percentage	5.00%
Perceptive credit facility | Prepaid After Second Anniversary of Funding
DEBT
Prepayment fees percentage	4.00%
Perceptive credit facility | Prepaid After the Third Anniversary of Funding
DEBT
Prepayment fees percentage	3.00%
Perceptive, Tranche One
DEBT
Borrowings outstanding under credit facility	$ 50,000
Warrant exercisable | shares	1,125,000
Perceptive, Tranche Two
DEBT
Borrowings outstanding under credit facility	$ 15,000
Warrant exercisable | shares	337,500
Perceptive, Tranche Three
DEBT
Borrowings outstanding under credit facility	$ 25,000

COMMON STOCK - Summary of Common Stock Issued and Reserved for Issuance (Details) - shares shares in Thousands	Sep. 30, 2024	Dec. 31, 2023
COMMON STOCK
Shares of common stock issued	30,317	29,092
Shares of common stock reserved for issuance for:
Total shares of common stock issued and reserved for issuance	38,451	36,076
Common stock warrants outstanding
Shares of common stock reserved for issuance for:
Shares of common stock reserved for issuance	1,146	41
Stock options outstanding
Shares of common stock reserved for issuance for:
Shares of common stock reserved for issuance	1,238	1,270
Restricted stock units outstanding
Shares of common stock reserved for issuance for:
Shares of common stock reserved for issuance	3,274	3,360
Shares available for grant under stock incentive plans
Shares of common stock reserved for issuance for:
Shares of common stock reserved for issuance	852	978
Shares available for sale under employee stock purchase plan
Shares of common stock reserved for issuance for:
Shares of common stock reserved for issuance	1,624	1,335

COMMON STOCK - Summary of Outstanding Common Stock Warrants (Details) - $ / shares	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
COMMON STOCK
Warrants Outstanding	1,146,000	41,000
Perceptive credit facility
COMMON STOCK
Warrant exercisable	1,125,000
Exercise Price $0.94
COMMON STOCK
Warrants Outstanding	1,125,000
Exercise Price	$ 0.94
Expiration Date	2034-07
Exercise Price $9.73
COMMON STOCK
Warrants Outstanding		20,000
Exercise Price		$ 9.73
Expiration Date		2024-03
Exercise Price $9.73
COMMON STOCK
Warrants Outstanding	21,000	21,000
Exercise Price	$ 9.73	$ 9.73
Expiration Date	2024-12	2024-12

COMMON STOCK - Summary of Perceptive Warrants Using Black-Scholes Pricing Model (Details)	Sep. 30, 2024 Y item
Estimated fair value of common stock
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants and rights outstanding	0.0161
Exercise price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants and rights outstanding	0.0192
Expected term (in years)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants and rights outstanding | Y	9.4
Risk-free interest rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants and rights outstanding	0.042
Expected volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants and rights outstanding	0.880

LOSS PER SHARE - Schedule of Potentially Dilutive Securities Outstanding Excluded from Diluted Loss Per Share Calculation (Details) - shares shares in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Stock options
LOSS PER SHARE
Potentially dilutive securities outstanding excluded from diluted loss per share	1,238	1,271
Non-vested PRSUs
LOSS PER SHARE
Potentially dilutive securities outstanding excluded from diluted loss per share	395	395
Non-vested restricted stock units
LOSS PER SHARE
Potentially dilutive securities outstanding excluded from diluted loss per share	2,879	3,239
Common stock warrants
LOSS PER SHARE
Potentially dilutive securities outstanding excluded from diluted loss per share	1,146	41

SHARE-BASED COMPENSATION - Summary of Share-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
SHARE-BASED COMPENSATION
Total	$ 1,419	$ 1,855	$ 4,320	$ 5,693
Cost of revenues
SHARE-BASED COMPENSATION
Total	35	38	106	109
Sales and marketing
SHARE-BASED COMPENSATION
Total	380	590	1,089	1,946
General and administrative
SHARE-BASED COMPENSATION
Total	807	1,052	2,560	3,134
Research and development
SHARE-BASED COMPENSATION
Total	$ 197	$ 175	$ 565	$ 504

SHARE-BASED COMPENSATION - Additional Information (Details) $ in Thousands, shares in Millions	1 Months Ended		3 Months Ended		9 Months Ended
	Mar. 31, 2022 shares	Jun. 30, 2018 installment shares	Sep. 30, 2024 USD ($) shares	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) shares	Sep. 30, 2023 USD ($)	Dec. 31, 2020 shares
SHARE-BASED COMPENSATION
Share-based compensation expenses			$ 1,419	$ 1,855	$ 4,320	$ 5,693
Stock options
SHARE-BASED COMPENSATION
Share-based compensation expenses			0	100	100	300
Unrecognized compensation cost related to non-vested stock options			0		0
Restricted Stock Units and PRSUs
SHARE-BASED COMPENSATION
Share-based compensation expenses			1,400	$ 1,800	$ 4,200	$ 5,300
Non-vested awards not yet recognized weighted-average period for recognition					1 year 10 months 24 days
Unrecognized compensation cost related to non-vested restricted stock			$ 7,400		$ 7,400
Fair value of restricted stock vested					$ 4,300
2018 Plan
SHARE-BASED COMPENSATION
Annual percentage increase in number of shares authorized for issuance		4.00%
Vesting terms of stock options		stock options vest 25% upon the first anniversary of the date of grant and the remainder ratably monthly thereafter for 36 months. Restricted stock units generally vest ratably in three equal installments on the first, second and third anniversaries of the grant date.
Number of vesting installments | installment		3
Shares available for future issuance | shares			0.7		0.7
2018 Plan | PRSUs | Common Stock
SHARE-BASED COMPENSATION
Weighted average price, number of days trailing		30 days
2018 Plan | First Anniversary of Date of Grant
SHARE-BASED COMPENSATION
Vesting percentage of stock options		25.00%
2018 Plan | Maximum
SHARE-BASED COMPENSATION
Number of shares authorized for issuance | shares		1.4
Maximum contractual term of stock options		10 years
2020 Plan
SHARE-BASED COMPENSATION
Number of additional shares authorized for issuance | shares	0.5
Shares available for future issuance | shares			0.1		0.1
2020 Plan | Maximum
SHARE-BASED COMPENSATION
Number of shares authorized for issuance | shares							0.4

SHARE-BASED COMPENSATION - Summary of Stock Option Activity (Details) - Stock options - $ / shares shares in Thousands	9 Months Ended
	Sep. 30, 2024
SHARE-BASED COMPENSATION
Number of Shares under Option, Outstanding, Beginning balance	1,270
Number of Shares under Option, Granted	0
Number of Shares under Option, Exercised	(2)
Number of Shares under Option, Forfeited and Expired	(30)
Number of Shares under Option, Outstanding, Ending balance	1,238
Number of Shares under Option, Exercisable	1,238
Number of Shares under Option, Vested and expected to vest	1,238
Weighted average Exercise Price per Option, Outstanding, Beginning balance	$ 3.90
Weighted average Exercise Price per Option, Exercised	0.96
Weighted average Exercise Price per Option, Forfeited and Expired	9.97
Weighted average Exercise Price per Option, Outstanding, Ending balance	3.75
Weighted average Exercise Price per Option, Exercisable	3.75
Weighted average Exercise Price per Option, Vested and expected to vest	$ 3.75
Weighted average Remaining Contractual Life, Outstanding	5 years 3 months 18 days
Weighted average Remaining Contractual Life, Exercisable	5 years 3 months 18 days
Weighted average Remaining Contractual Life, Vested and expected to vest	5 years 3 months 18 days

SHARE-BASED COMPENSATION - Summary of Restricted Stock Units and PRSUs Activity (Details) shares in Thousands	9 Months Ended
	Sep. 30, 2024 $ / shares shares
Restricted stock units
SHARE-BASED COMPENSATION
Non-vested, Beginning balance	2,965
Granted	1,593
Vested	(1,406)
Forfeited	(273)
Non-vested, Ending balance	2,879
Weighted average Grant-date Fair Value, Non-vested, Beginning balance | $ / shares	$ 4.37
Weighted average Grant-date Fair Value, Granted | $ / shares	3.18
Weighted average Grant-date Fair Value, Vested | $ / shares	4.35
Weighted average Grant-date Fair Value, Forfeited | $ / shares	4.21
Weighted average Grant-date Fair Value, Non-vested, Ending balance | $ / shares	$ 3.74
PRSUs
SHARE-BASED COMPENSATION
Non-vested, Beginning balance	395
Granted	0
Non-vested, Ending balance	395
Weighted average Grant-date Fair Value, Non-vested, Beginning balance | $ / shares	$ 6.77
Weighted average Grant-date Fair Value, Non-vested, Ending balance | $ / shares	$ 6.77

SEGMENT INFORMATION - Additional Information (Details)	9 Months Ended
	Sep. 30, 2024 segment
SEGMENT INFORMATION
Number of operating business segment	1

GOVERNMENT ASSISTANCE (Details) $ in Millions	9 Months Ended
	Sep. 30, 2024 USD ($)
Employee Retention Credit
GOVERNMENT ASSISTANCE
Government assistance amount recognized in income statement	$ 2.9

SUBSEQUENT EVENTS - Additional Information (Details) - Subsequent Event $ in Millions	Nov. 08, 2024 USD ($)
SUBSEQUENT EVENTS
Percentage of reduction in workforce by reorganization	10.00%
Cash savings on reorganization	$ 3.5
Total expenses for severance and benefits for employees	$ 0.4

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