Form 10-Q/A - Quarterly report [Sections 13 or 15(d)]: [Amend]

Share Name	Share Symbol	Market	Type
Avalo Therapeutics Inc	NASDAQ:AVTX	NASDAQ	Common Stock

	Price Change	% Change	Share Price	Bid Price	Offer Price	High Price	Low Price	Open Price	Shares Traded	Last Trade
	0.00	0.00%	11.50	4.76	13.47				0	00:00:00

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 10-Q/A

(Amendment No. 1)


☑			QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
for the quarterly period ended March 31, 2024
OR
☐			TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

COMMISSION FILE NUMBER: 001-37590

AVALO THERAPEUTICS, INC.

(Exact name of registrant as specified in its charter)


Delaware (State of incorporation)			45-0705648 (I.R.S. Employer Identification No.)
540 Gaither Road, Suite 400 Rockville, Maryland 20850 (Address of principal executive offices)			(410) 522-8707 (Registrant’s telephone number, including area code)

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


Title of each class	Trading Symbol	Name of each exchange on which registered
Common Stock, $0.001 par value	AVTX	Nasdaq Capital Market

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.


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 ☑

As of May 8, 2024, the registrant had 1,034,130 shares of common stock outstanding.

EXPLANATORY NOTE

Avalo Therapeutics, Inc. (the “Company”) is filing this Amendment No. 1 (this “Amendment”) to its Quarterly Report on Form 10-Q for the period ended March 31, 2024, as filed with the U.S. Securities and Exchange Commission on May 13, 2024 (the “Original Form 10-Q”), to furnish revised certifications by the Company’s principal executive officer and principal financial officer in Exhibit 32.1, pursuant to Section 906 of the Sarbanes-Oxley Act of 2022 (the “Section 906 Certifications”). The Section 906 Certifications in the Original Form 10-Q inadvertently contained a typographical error in the execution date. The Company also is filing currently dated certifications by the Company’s principal executive officer and principal financial officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2022 (the “Section 302 Certifications”) with this Amendment. This Amendment does not reflect any events occurring after the date the Original Form 10-Q was filed or modify or update in any way those disclosures made in the Original Form 10-Q and all information other than the cover page, this explanatory note, references to the Form 10-Q or Quarterly Report on Form 10-Q, Part II, Item 6, the Section 906 Certifications, the Section 302 Certifications, and the signature page remain unchanged.

AVALO THERAPEUTICS, INC.

FORM 10-Q/A

For the Quarter Ended March 31, 2024

TABLE OF CONTENTS

Page

PART I.

FINANCIAL INFORMATION

Item 1.

Financial Statements

Condensed Consolidated Balance Sheets as of March 31, 2024 (Unaudited) and December 31, 2023

Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) for the Three Months Ended March 31, 2024 and 2023

Condensed Consolidated Statements of Preferred Stock and Changes in Stockholders’ (Deficit) Equity (Unaudited) for the Three Months Ended March 31, 2024 and 2023

Condensed Consolidated Statements of Cash Flows (Unaudited) for the Three Months Ended March 31, 2024 and 2023

Notes to Unaudited Condensed Consolidated Financial Statements

Item 2.

Management’s Discussion and Analysis of Financial Condition and Results of Operations

Item 3.

Quantitative and Qualitative Disclosures About Market Risk

Item 4.

Controls and Procedures

PART I - FINANCIAL INFORMATION

Item 1. Financial Statements.

AVALO THERAPEUTICS, INC. and SUBSIDIARIES

Condensed Consolidated Balance Sheets

(In thousands, except share and per share data)

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	March 31, 2024		December 31, 2023
	(unaudited)
Assets
Current assets:
Cash and cash equivalents	$	110,177	$	7,415

Other receivables	35		136

Prepaid expenses and other current assets	997		843
Restricted cash, current portion	4		1
Total current assets	111,213		8,395
Property and equipment, net	1,882		1,965
Goodwill	10,502		10,502
Restricted cash, net of current portion	131		131
Total assets	$	123,728	$	20,993
Liabilities, mezzanine equity and stockholders’ (deficit) equity
Current liabilities:
Accounts payable	$	916	$	446
Accrued expenses and other current liabilities	7,383		4,172
Warrant liability	194,901		—
Contingent consideration	12,500		—
Total current liabilities	215,700		4,618
Royalty obligation	2,000		2,000
Deferred tax liability, net	162		155
Derivative liability	5,670		5,550
Other long-term liabilities	1,281		1,366
Total liabilities	224,813		13,689
Mezzanine equity:
Series C Preferred Stock—$0.001 par value; 34,326 and 0 shares of Series C Preferred Stock authorized at March 31, 2024 and December 31, 2023, respectively; 22,358 and 0 shares of Series C Preferred Stock issued and outstanding at March 31, 2024 and December 31, 2023, respectively	11,457		—
Series D Preferred Stock—$0.001 par value; 1 and 0 shares of Series D Preferred Stock authorized at March 31, 2024 and December 31, 2023, respectively; 1 and 0 shares of Series D Preferred Stock issued and outstanding at March 31, 2024 and December 31, 2023, respectively	—		—
Series E Preferred Stock—$0.001 par value; 1 and 0 shares of Series E Preferred Stock authorized at March 31, 2024 and December 31, 2023, respectively; 1 and 0 shares of Series E Preferred Stock issued and outstanding at March 31, 2024 and December 31, 2023, respectively	—		—
Stockholders’ (deficit) equity:
Common stock—$0.001 par value; 200,000,000 shares authorized at March 31, 2024 and December 31, 2023; 1,034,130 and 801,746 shares issued and outstanding at March 31, 2024 and December 31, 2023, respectively	1		1
Additional paid-in capital	343,881		342,437
Accumulated deficit	(456,424)		(335,134)
Total stockholders’ (deficit) equity	(112,542)		7,304
Total liabilities, mezzanine equity and stockholders’ (deficit) equity	$	123,728	$	20,993

See accompanying notes to the unaudited condensed consolidated financial statements.

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AVALO THERAPEUTICS, INC. and SUBSIDIARIES

Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited)

(In thousands, except per share data)


	Three Months Ended
	March 31,
	2024		2023
Revenues:
Product revenue, net	$	—	$	475

Total revenues, net	—		475

Operating expenses:
Cost of product sales	(80)		551
Research and development	2,116		6,008
Acquired in-process research and development	27,538		—
General and administrative	3,193		2,708

Total operating expenses	32,767		9,267
	(32,767)		(8,792)
Other expense:
Excess of warrant fair value over private placement proceeds	(79,276)		—
Private placement transaction costs	(9,220)		—
Change in fair value of derivative liability	(120)		(180)
Interest income, net	100		(949)
Other expense, net	—		(26)
Total other expense, net	(88,516)		(1,155)
Loss before taxes	(121,283)		(9,947)
Income tax expense	7		8
Net loss and comprehensive loss	$	(121,290)	$	(9,955)
Net loss per share of common stock, basic and diluted1	$	(141)	$	(204)

1 Amounts for prior periods presented have been retroactively adjusted to reflect the 1-for-240 reverse stock split effected on December 28, 2023. See Note 1 for details.

See accompanying notes to the unaudited condensed consolidated financial statements.

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AVALO THERAPEUTICS, INC. and SUBSIDIARIES

Condensed Consolidated Statements of Preferred Stock and Changes in Stockholders’ (Deficit) Equity (Unaudited)

(In thousands, except share amounts)


	Preferred Stock			Common stock			Additional paid-in	Accumulated		Total stockholders’
	Shares	Amount		Shares	Amount			capital		deficit		(deficit) equity
Three Months Ended March 31, 2024
Balance, December 31, 2023	—	—		801,746	$	1		$	342,437	$	(335,134)	$	7,304
Impact of reverse split fractional share round-up	—	—		60,779	—			—		—		—
Issuance of common stock pursuant to Almata Transaction	—	—		171,605	—			815		—		815
Issuance of Series C Preferred Stock pursuant to Almata Transaction	2,412	11,457		—	—			—		—		—
Issuance of Series C Preferred Stock in private placement	19,946	—		—	—			—		—		—
Issuance of Series D Preferred Stock in private placement	1	—
Issuance of Series E Preferred Stock in private placement	1	—
Stock-based compensation	—	—		—	—			629		—		629
Net loss	—	—		—	—			—		(121,290)		(121,290)
Balance, March 31, 2024	22,360	$	11,457	1,034,130	$	1		$	343,881	$	(456,424)	$	(112,542)


	Preferred Stock			Common stock			Additional paid-in	Accumulated		Total stockholders’
	Shares	Amount		Shares1	Amount1			capital1		deficit		deficit
Three Months Ended March 31, 2023
Balance, December 31, 2022	—	—		39,294	$	—		$	292,909	$	(303,824)	$	(10,915)
Issuance of shares of common stock and warrants in underwritten public offering, net	—	—		15,709	—			13,748		—		13,748
Stock-based compensation	—	—		—	—			855		—		855
Net loss	—	—		—	—			—		(9,955)		(9,955)
Balance, March 31, 2023	—	$	—	55,003	$	—		$	307,512	$	(313,779)	$	(6,267)

1 Amounts for prior periods presented have been retroactively adjusted to reflect the 1-for-240 reverse stock split effected on December 28, 2023. See Note 1 for details.

See accompanying notes to the unaudited condensed consolidated financial statements.

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AVALO THERAPEUTICS, INC. and SUBSIDIARIES

Condensed Consolidated Statements of Cash Flows (Unaudited)

(Amounts in thousands)


	Three Months Ended March 31,
	2024		2023
Operating activities
Net loss	$	(121,290)	$	(9,955)
Adjustments to reconcile net loss used in operating activities:
Depreciation and amortization	34		33
Stock-based compensation	629		855
Acquired in-process research and development	27,538		—
Excess of warrant fair value over private placement proceeds	79,276		—
Transaction costs paid pursuant to private placement	7,013		—
Transaction costs payable upon exercise of warrants issued in private placement	1,734		—
Change in fair value of derivative liability	120		180
Accretion of debt discount	—		350
Deferred taxes	7		8
Changes in assets and liabilities:

Other receivables	101		1,062

Inventory, net	—		1
Prepaid expenses and other assets	(154)		(337)

Lease incentive	158		—
Accounts payable	470		2,683

Deferred revenue	—		22
Accrued expenses and other liabilities	(1,652)		(4,941)
Lease liability, net	(186)		(13)
Net cash used in operating activities	(6,202)		(10,052)
Investing activities
Cash assumed from Almata Transaction	356		—
Leasehold improvements	—		(158)
Disposal of property and equipment	—		25

Net cash provided by (used in) investing activities	356		(133)
Financing activities

Proceeds from private placement investment, gross	115,625		—
Transaction costs paid pursuant to private placement	(7,013)		—
Proceeds from issuance of common stock and pre-funded warrants in underwritten public offering, net	—		13,748





Net cash provided by financing activities	108,612		13,748
Increase in cash, cash equivalents and restricted cash	102,766		3,563
Cash, cash equivalents, and restricted cash at beginning of period	7,546		13,318
Cash, cash equivalents, and restricted cash at end of period	$	110,312	$	16,881
Supplemental disclosures of cash flow information
Cash paid for interest	$	—	$	704

Supplemental disclosures of non-cash activities
Issuance of common stock and Series C Preferred Stock pursuant to Almata Transaction	$	12,727	$	—

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the condensed consolidated balance sheets that sum to the total of the same such amounts shown in the condensed consolidated statements of cash flows (in thousands):


	March 31,
	2024		2023
Cash and cash equivalents	$	110,177	$	16,687
Restricted cash, current	4		63
Restricted cash, non-current	131		131
Total cash, cash equivalents and restricted cash	$	110,312	16,881

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See accompanying notes to the unaudited condensed consolidated financial statements.

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AVALO THERAPEUTICS, INC. and SUBSIDIARIES

Notes to Unaudited Condensed Consolidated Financial Statements

1. Business

Avalo Therapeutics, Inc. (the “Company,” “Avalo” or “we”) is a clinical stage biotechnology company focused on the treatment of immune dysregulation. Avalo’s lead asset is AVTX-009, an anti-IL-1β monoclonal antibody (“mAb”), targeting inflammatory diseases. Avalo’s pipeline also includes quisovalimab (anti-LIGHT mAb) and AVTX-008 (BTLA agonist fusion protein).

Avalo was incorporated in Delaware and commenced operation in 2011, and completed its initial public offering in October 2015.

On March 27, 2024, the Company acquired AVTX-009, a Phase 2-ready anti-IL-1β mAb, through a merger with AlmataBio, Inc. (“AlmataBio”) with and into its wholly owned subsidiary (the “Almata Transaction”). Additionally, on March 28, 2024, the Company closed a private placement investment for up to $185 million in gross proceeds, including initial upfront gross investment of $115.6 million. The upfront net proceeds were approximately $108.1 million after deducting transaction costs. The Company could receive up to an additional $69.4 million of gross proceeds upon the exercise of warrants issued in the financing.

Liquidity

Since inception, we have incurred significant operating and cash losses from operations. We have primarily funded our operations to date through sales of equity securities, out-licensing transactions and sales of assets.

For the three months ended March 31, 2024, Avalo generated a net loss of $121.3 million and negative cash flows from operations of $6.2 million. As of March 31, 2024, Avalo had $110.2 million in cash and cash equivalents. In March 2024, the Company closed a private placement investment for up to $185 million in gross proceeds, including an initial upfront gross investment of $115.6 million. Net proceeds were $108.1 million after deducting transaction costs. The Company could receive up to an additional $69.4 million of gross proceeds upon the exercise of warrants issued in the financing.

Based on our current operating plans, we expect that our existing cash and cash equivalents are sufficient to fund operations for at least twelve months from the filing date of the Original Form 10-Q and we expect current cash on hand to fund operations into 2027. The Company closely monitors its cash and cash equivalents and seeks to balance the level of cash and cash equivalents with our projected needs to allow us to withstand periods of uncertainty relative to the availability of funding on favorable terms. We may need to satisfy our future cash needs through sales of equity securities under the Company’s ATM program or otherwise, out-licensing transactions, strategic alliances/collaborations, sale of programs, and/or mergers and acquisitions. There can be no assurance that any financing or business development initiatives can be realized by the Company, or if realized, what the terms may be. Further, if the Company raises additional funds through collaborations, strategic alliances or licensing arrangements with third parties, the Company might have to relinquish valuable rights to its technologies, future revenue streams, research programs or product candidates. To the extent that we raise capital through the sale of equity, the ownership interest of our existing stockholders will be diluted, and the terms may include liquidation or other preferences that adversely affect the rights of our stockholders.

2. Basis of Presentation and Significant Accounting Policies

Basis of Presentation

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The Company’s unaudited condensed consolidated 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 the authoritative GAAP as found in the Accounting Standards Codification (“ASC”) and Accounting Standards Updates (“ASU”) of the Financial Accounting Standards Board (“FASB”).

In the opinion of management, the accompanying unaudited condensed consolidated financial statements include all adjustments, consisting of normal recurring adjustments, which are necessary to present fairly the Company’s financial position, results of operations, and cash flows. The condensed consolidated balance sheet at December 31, 2023 has been derived from audited financial statements at that date. The interim results of operations are not necessarily indicative of the results that may occur for the full fiscal year. Certain information and footnote disclosure normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to instructions, rules, and regulations prescribed by the United States Securities and Exchange Commission (“SEC”).

The Company believes that the disclosures provided herein are adequate to make the information presented not misleading when these unaudited condensed consolidated financial statements are read in conjunction with the December 31, 2023 audited consolidated financial statements.

On December 28, 2023, Avalo effected a 1-for-240 reverse stock split of the outstanding shares of the Company’s common stock and began trading on a split-adjusted basis on December 29, 2023. The Company retroactively applied the reverse stock split to common share and per share amounts for periods prior to December 28, 2023, including the unaudited consolidated financial statements for the quarter ended March 31, 2023. Additionally, pursuant to their terms, a proportionate adjustment was made to the per share exercise price and number of shares issuable under all of the Company’s outstanding options and warrants, and the number of shares authorized for issuance pursuant to the Company’s equity incentive plans have been reduced proportionately. Avalo retroactively applied such adjustments in the notes to consolidated financial statements for periods presented prior to December 28, 2023, including the quarter ended March 31, 2023. The reverse stock split did not reduce the number of authorized shares of common and preferred stock and did not alter the par value.

Unless otherwise indicated, all amounts in the following tables are in thousands except share and per share amounts.

Significant Accounting Policies

During the three months ended March 31, 2024, there were no significant changes to the Company’s summary of significant accounting policies contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, as filed with the SEC on March 29, 2024, except for the policies related to asset acquisitions and warrant liability as described below.

Asset Acquisitions

The Company evaluates acquisitions of assets and other similar transactions to assess whether the transaction should be accounted for as a business combination or asset acquisition by first applying a screen test to determine if substantially all of the fair value of the gross assets acquired is concentrated in a single identifiable asset or group of similar identifiable assets. If the screen test is met, the transaction is accounted for as an asset acquisition. If the screen test is not met, further determination is required as to whether the Company has acquired inputs and processes that have the ability to create outputs which would meet the definition of a business. Significant judgment is required in the application of the screen test to determine whether an acquisition is a business combination or an acquisition of assets.

Warrant Liability

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The Company accounts for warrants as either equity-classified or liability-classified instruments based on an assessment of the warrant’s specific terms and applicable authoritative guidance in ASC 480, Distinguishing Liabilities from Equity and ASC 815, Derivatives and Hedging. Warrants classified as equity are recorded at fair value as of the date of issuance on the Company’s consolidated balance sheets and no further adjustments to their valuation are made. Warrants classified as derivative liabilities that require separate accounting as liabilities are recorded on the Company’s consolidated balance sheets at their fair value on the date of issuance and are revalued on each subsequent balance sheet date until such instruments are exercised or expire, with any changes in the fair value between reporting periods recorded on the consolidated statement of operations. The assessment of whether the warrants are accounted for as equity-classified or liability-classified instruments is re-evaluated on a periodic basis.

3. Asset Acquisition

Almata Transaction

On March 27, 2024, the Company acquired AVTX-009, a Phase 2-ready anti-IL-1β mAb, through a merger with AlmataBio with and into its wholly owned subsidiary. The Company’s acquisition of AlmataBio was structured as a stock-for-stock transaction whereby all outstanding equity interests in AlmataBio were exchanged in a merger for a combination of the Company’s common stock and shares of the Company’s Series C Preferred Stock, resulting in the issuance of 171,605 shares of Company common stock and 2,412 shares of Series C Preferred Stock. Subject to Company stockholder approval, each share of Company Series C Preferred Stock (i) issued to former AlmataBio stockholders and ii) pursuant to the private placement investment will automatically convert to 1,000 shares of common stock, subject to certain beneficial ownership limitations. The Series C Preferred Stock holds no voting rights.

In addition to the shares issued, a cash payment of $7.5 million was due to the former AlmataBio stockholders upon the closing of a private placement investment. The private placement closed on March 28, 2024 and the Company paid the $7.5 million in April 2024. The Company is also required to pay potential development milestone payments to the former AlmataBio stockholders, including $5.0 million due upon the first patient dosed in a Phase 2 trial in patients with HS for AVTX-009 and $15.0 million due upon the first patient dosed in a Phase 3 trial for AVTX-009, both of which are payable in cash, Avalo stock, or a combination thereof at the election of the former AlmataBio stockholders, subject to the terms and conditions of the definitive merger agreement.

The Company has been determined to be the acquiring company for accounting purposes. In connection with the Almata Transaction, substantially all of the consideration paid is allocable to the fair value of acquired in-process research and development (“IPR&D”), specifically AVTX-009, and as such the acquisition is treated as an asset acquisition. The Company initially recognized AlmataBio’s assets and liabilities by allocating the accumulated cost of the acquisition based on their relative fair values, as estimated by management. The net assets acquired as of the transaction date have been combined with the assets, liabilities, and results of operations of the Company on consummation of the Almata Transaction. In accordance with ASC 730, Research and Development, the portion of the consideration allocated to the acquired IPR&D, specifically AVTX-009, based on its relative fair value, is included as an operating expense as there is no alternative future use.

Below is a summary of the total consideration, assets acquired and the liabilities assumed in connection with the Almata Transaction (in thousands):

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	Three Months Ended March 31, 2024
Stock consideration1	$	12,272
Milestone payment due upon close of private placement investment2	7,500
Milestone payment due upon first patient dosed in a Phase 2 trial2	5,000
Transaction costs	2,402
Total GAAP Purchase Price at Close	$	27,174

Acquired IPR&D	$	27,538
Cash	356
Accrued expenses and other current liabilities	(720)
Total net assets acquired and liabilities assumed	$	27,174

1 Equal to the aggregate common shares issued of 171,605 and the aggregate preferred shares issued of 2,412 (as-converted to 2,412,000 shares of common stock), multiplied by the Company’s closing stock price of $4.75 on March 27, 2024.

2 Avalo deemed these milestones probable and estimable as of the transaction close date and therefore included them as part of the GAAP purchase price at close. The first milestone payment due upon the close of the private placement investment was met on March 28, 2024 and was paid on April 1, 2024.

The cost to acquire the IPR&D asset related to AVTX-009 was expensed on the date of the Almata Transaction as it was determined to have no future alternative use. Accordingly, costs associated with the Almata Transaction to acquire the asset were expensed as incurred in acquired IPR&D.

4. Revenue

The Company’s license and supply agreement for Millipred®, an oral prednisolone indicated across a wide variety of inflammatory conditions, ended on September 30, 2023, and therefore there was no net product revenues for the three months ended March 31, 2024. Avalo considered Millipred® a non-core asset. Historically, the Company sold Millipred® in the United States primarily through wholesale distributors, who accounted for substantially all of the Company’s net product revenues and trade receivables. For the three months ended March 31, 2023, the Company recognized net product revenue of $0.5 million.

The Company will continue to monitor estimates for commercial liabilities, such as sales returns. As additional information becomes available, the Company could recognize expense (or a benefit) for differences between actuals or updated estimates to the reserves previously recognized. Pursuant the Millipred® license and supply agreement, Avalo was required to pay the supplier fifty percent of the net profit of the Millipred® product following each calendar quarter, subject to a $0.5 million quarterly minimum payment dependent on Avalo reaching certain net profit amounts as stipulated in the agreement. The profit share commenced on July 1, 2021 and ended on September 30, 2023. Within twenty-five months of September 30, 2023, the net profit share is subject to a reconciliation process where estimated deductions to arrive at net profit will be trued-up to actuals and could result in Avalo owing additional amounts to the supplier or vice versa, which would be recognized in cost of product sales.

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Aytu BioScience, Inc. (“Aytu”), to which the Company sold its rights, title, and interests in assets relating to certain commercialized products in 2019 (the “Aytu Transaction”), managed Millipred® commercial operations until August 31, 2021 pursuant to transition service agreements, which included managing the third-party logistics provider. As a result, Aytu collected cash on behalf of Avalo for revenue generated by sales of Millipred® from the second quarter of 2020 through the third quarter of 2021. The transition services agreement allows Aytu to withhold up to $1.0 million until December of 2024. In the second quarter of 2022, Avalo fully reserved the receivable as a result of Aytu’s conclusion within its Quarterly Report on Form 10-Q for the quarter ended June 30, 2022 that substantial doubt existed with respect to its ability to continue as a going concern within one year after the date those financial statements were issued. As of March 31, 2024, the total receivable balance was approximately $0.6 million and remains fully reserved as of March 31, 2024. We will continue to reassess its collectability each reporting period.

5. Net Loss Per Share

The Company had two classes of stock outstanding during the three months ended March 31, 2024, common stock and preferred stock, and had only common stock outstanding during the three months ended March 31, 2023. The Company computes net loss per share using the two-class method, as the Series C Preferred Stock participates in distributions with the Company’s common stock. The two-class method of computing net loss per share is an earnings allocation formula that determines net loss for common stock and any participating securities according to dividends declared and participation rights in undistributed earnings. As the Company is in a net loss position for the three months ended March 31, 2024, the two-class method of computing net loss per share results in no allocation of undistributed losses to participating securities.

Basic net loss per share for common stock is computed by dividing the sum of distributed earnings by the weighted average number of shares outstanding for the period. The weighted average number of common shares outstanding as of March 31, 2023 includes the weighted average effect of pre-funded warrants, the exercise of which required nominal consideration for the delivery of the shares of common stock. There were no pre-funded warrants outstanding as of March 31, 2024.

Diluted net loss per share may include the potential dilutive effect of common stock equivalents as if such securities were converted or exercised during the period, when the effect is dilutive. Common stock equivalents include: (i) outstanding stock options and restricted stock units, which are included under the “treasury stock method” when dilutive; (ii) common stock to be issued upon the exercise of outstanding warrants, which are included under the “treasury stock method” when dilutive, and (iii) preferred stock under the if-converted method. Because the impact of these items is anti-dilutive during periods of net loss, there is no difference between basic and diluted loss per common share for periods with net losses.

The following tables set forth the computation of basic and diluted net loss per share of common stock for the three months ended March 31, 2024 and March 31, 2023 (in thousands, except share and per share amounts):


	Three Months Ended March 31, 2024
	Common stock

Net loss	$	(121,290)
Weighted average shares	859,381
Basic and diluted net loss per share	$	(141)

As the Company is in a net loss position as of March 31, 2024, the two-class method of computing net loss per share results in no allocation of undistributed losses to participating securities. As such, there is no allocation of undistributed losses to the Series C Preferred Stock outstanding for the three months ended March 31, 2024, and therefore the preferred stock is not reflected in the above table.

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	Three Months Ended March 31, 2023
	Common stock

Net loss	$	(9,955)
Weighted average shares	48,845
Basic and diluted net loss per share	$	(204)

The following outstanding securities have been excluded from the computation of diluted weighted shares outstanding for the three months ended March 31, 2024 and 2023, as they could have been anti-dilutive:


	Three Months Ended
	March 31,
	2024	2023
Stock options	7,543	7,558
Warrants on common stock1	11,969,063	17,254
Series C Preferred Stock (as-converted to common stock)2	22,357,897	—

1 The weighted average number of common shares outstanding for the three months ended March 31, 2023 includes the weighted average outstanding pre-funded warrants for the period because their exercise price was nominal. There were no pre-funded warrants outstanding as of March 31, 2024.

2 Subject to stockholder approval, each share of the Company’s Series C Preferred Stock will automatically convert to 1,000 shares of common stock, subject to certain beneficial ownership limitations.

6. Fair Value Measurements

ASC 820, Fair Value Measurements and Disclosures (“ASC 820”) defines fair value as the price that would be received to sell an asset, or paid to transfer a liability, in the principal or most advantageous market in an orderly transaction between market participants on the measurement date. The fair value standard also establishes a three‑level hierarchy, which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The valuation hierarchy is based upon the transparency of inputs to the valuation of an asset or liability on the measurement date. The three levels are defined as follows:

•Level 1—inputs to the valuation methodology are quoted prices (unadjusted) for an identical asset or liability in an active market.

•Level 2—inputs to the valuation methodology include quoted prices for a similar asset or liability in an active market or model‑derived valuations in which all significant inputs are observable for substantially the full term of the asset or liability.

•Level 3—inputs to the valuation methodology are unobservable and significant to the fair value measurement of the asset or liability.

The following table presents, for each of the fair value hierarchy levels required under ASC 820, the Company’s assets and liabilities that are measured at fair value on a recurring basis (in thousands):

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	March 31, 2024
	Fair Value Measurements Using
	Quoted prices in active markets for identical assets		Significant other observable inputs		Significant unobservable inputs
	(Level 1)		(Level 2)		(Level 3)
Assets
Investments in money market funds*	$	104,776	$	—	$	—
Liabilities
Derivative liability	$	—	$	—	$	5,670
Warrant liability	$	—	$	—	194,901


	December 31, 2023
	Fair Value Measurements Using
	Quoted prices in active markets for identical assets		Significant other observable inputs		Significant unobservable inputs
	(Level 1)		(Level 2)		(Level 3)
Assets
Investments in money market funds*	$	7,077	$	—	$	—
Liabilities
Derivative liability	$	—	$	—	$	5,550

*Investments in money market funds are reflected in cash and cash equivalents on the accompanying unaudited condensed consolidated balance sheets.

As of March 31, 2024, the Company’s financial instruments included cash and cash equivalents, restricted cash, other receivables, prepaid and other current assets, accounts payable, accrued expenses and other current liabilities, derivative liability, and warrant liability. As of December 31, 2023, the Company’s financial instruments included cash and cash equivalents, restricted cash, accounts receivable, other receivables, prepaid and other current assets, accounts payable, accrued expenses and other current liabilities, and derivative liability.

The carrying amounts reported in the accompanying unaudited condensed consolidated financial statements for cash and cash equivalents, restricted cash, accounts receivable, other receivables, prepaid and other current assets, accounts payable, and accrued expenses and other current liabilities approximate their respective fair values because of the short-term nature of these accounts.

Level 3 Valuation

The table presented below is a summary of changes in the fair value of the Company’s Level 3 valuations for the warrant liability and derivative liability for the three months ended March 31, 2024:


	Warrant liability		Derivative liability		Total
Balance at December 31, 2023	$	—	$	5,550	$	5,550
Initial valuation of warrant liability	194,901		—		194,901
Change in fair value	—		120		120
Balance at March 31, 2024	$	194,901	$	5,670	$	200,571

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	Warrant liability		Derivative liability		Total
Balance at December 31, 2022	$	—	$	4,830	$	4,830
Initial valuation of warrant liability	—		—		—
Change in fair value	—		180		180
Balance at March 31, 2023	$	—	$	5,010	$	5,010

Warrant liability

On March 28, 2024, the Company closed a private placement investment with institutional investors in which the investors received (i) 19,946 shares of non-voting convertible preferred stock (the “Series C Preferred Stock”) and (ii) warrants to purchase up to an aggregate of 11,967,526 shares of Avalo’s common stock (or a number of shares of Series C Preferred Stock convertible into the number of shares of common stock the warrant is then exercisable into). Refer to Note 10 - Capital Structure and sub-header “Q1 2024 Financing” for more information regarding the warrants.

The Company’s warrant liability is measured at fair value each reporting period utilizing the Black-Scholes option pricing model, which requires assumptions including the value of the stock on the measurement date, exercise price, expected term, expected volatility, and the risk-free interest rate. Certain assumptions, including the expected term and expected volatility, are subjective and require judgment to develop. As a result, if factors or expected outcomes change and we use significantly different assumptions or estimates, our warrant liability could be materially different.

The closing stock price of Avalo’s common stock on March 28, 2024, which was the date the transaction closed, as well as the last trading day of the first quarter of 2024, was the main driver of the fair value of the warrant liability. Future increases or decreases to the stock price at each reporting period will drive increases or decreases, respectively, to the fair value of the warrant liability. The expected term was estimated based on when the Company expects the first patient dosed in a Phase 2 trial of AVTX-009 in hidradenitis suppurativa (the “Dosing Date”), to occur. If the Dosing Date occurs earlier or later than expected, then the expected term will decrease or increase, respectively, which may decrease or increase, respectively, the value of the warrant liability. Expected volatility is based on a blend between the Company’s historical volatility and the volatility of comparable peer companies. The risk-free interest rate was based on the implied yield available on U.S. treasury securities with a maturity equivalent to the expected term. The warrant liability was classified as a Level 3 instrument as its value was based on unobservable market inputs. The inputs utilized include the following:


	As of March 31, 2024
Common stock price	$	21.75
Expected term (in years)	0.5
Expected volatility	109		%
Risk-free rate	5.35		%
Exercise price	$	5.796933
Dividend yield rate	—		%

The initial measurement of the warrant liability of $194.9 million exceeded the proceeds received from the private placement investment of $115.6 million, which resulted in a $79.3 million loss recognized in other expense, net. Subsequently, the warrants are carried at fair value with changes in fair value recognized in the Company’s consolidated statements of operations and comprehensive loss until either exercised or expired.

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Derivative liability

In the fourth quarter of 2022, Avalo sold its economic rights to future milestone and royalty payments for previously out-licensed assets AVTX-501, AVTX-007, and AVTX-611 to ES Therapeutics, LLC (“ES”), an affiliate of Armistice, in exchange for $5.0 million (the “ES Transaction”). At the time of the transaction, Armistice was a significant stockholder of the Company and whose chief investment officer, Steven Boyd, and managing director, Keith Maher, served on Avalo’s Board until August 8, 2022. The ES Transaction was approved in accordance with Avalo’s related party transaction policy.

The economic rights sold include (a) rights to a milestone payment of $20.0 million upon the filing and acceptance of an NDA for AVTX-501 pursuant to an agreement with Janssen Pharmaceutics, Inc., (the “AVTX-501 Milestone”) and (b) rights to any future milestone payments and royalties relating to AVTX-007 under a license agreement with Apollo AP43 Limited, including up to $6.25 million of development milestones, up to $67.5 million in sales-based milestones, and royalty payments of a low single digit percentage of annual net sales (which percentage increases to another low single digit percentage if annual net sales exceed a specified threshold) (the “AVTX-007 Milestones and Royalties”). In addition, Avalo waived all its rights to AVTX-611 sales-based payments of up to $20.0 million that were payable by ES.

The exchange of the economic rights of the AVTX-501 Milestone and AVTX-007 Milestones and Royalties for cash meets the definition of a derivative instrument. The fair value of the derivative liability is determined using a combination of a scenario-based method and an option pricing method (implemented using a Monte Carlo simulation). The significant inputs including probabilities of success, expected timing, and forecasted sales as well as market-based inputs for volatility, risk-adjusted discount rates and allowance for counterparty credit risk are unobservable and based on the best information available to Avalo. Certain information used in the valuation is inherently limited in nature and could differ from Janssen and Apollo’s internal estimates.

The fair value of the derivative liability as of the transaction date was approximately $4.8 million, of which $3.5 million was attributable to the AVTX-501 Milestone and $1.3 million was attributable to the AVTX-007 Milestones and Royalties. Subsequent to the transaction date, at each reporting period, the derivative liability is remeasured at fair value. As of March 31, 2024, the fair value of the derivative liability was $5.7 million, of which $3.8 million was attributable to the AVTX-501 Milestone and $1.9 million was attributable to the AVTX-007 Milestones and Royalties. For the three months ended March 31, 2024, the $0.1 million change in fair value was recognized in other expense, net in the accompanying unaudited condensed consolidated statements of operations and comprehensive loss.

The fair value of the AVTX-501 Milestone was primarily driven by an approximate 23% probability of success to reach the milestone in approximately 3.6 years. The fair value of AVTX-007 Milestones and Royalties was primarily driven by an approximate 17% probability of success, time to commercialization of approximately 4.6 years, and sales forecasts with peak annual net sales reaching $300 million. As discussed above, these unobservable inputs were estimated by Avalo based on limited publicly available information and therefore could differ from Janssen and Apollo’s internal development plans. Any changes to these inputs may result in significant changes to the fair value measurement. Notably, the probability of success is the largest driver of the fair value and therefore changes to such input would likely result in significant changes to such fair value.

In the event that Janssen and/or Apollo are required to make payment(s) to ES Therapeutics pursuant to the underlying agreements, Avalo will recognize revenue under its existing contracts with those customers for that amount when it is no longer probable there would be a significant revenue reversal with any differences between the fair value of the derivative liability related to that payment immediately prior to the revenue recognition and revenue recognized to be recorded as other expense. However, given Avalo is no longer entitled to collect these payments, the potential ultimate settlement of the payments in the future from Janssen and/or Apollo to ES Therapeutics (and the future mark-to-market activity each reporting period) will not impact Avalo’s future cash flows.

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No changes in valuation techniques or inputs occurred during the three months ended March 31, 2024 and 2023. No transfers of assets between Level 1 and Level 2 of the fair value measurement hierarchy occurred during the three months ended March 31, 2024 and 2023.

7. Leases

Avalo currently occupies two leased properties, both of which serve as administrative office space. The Company determined that both of these leases are operating leases based on the lease classification test performed at lease commencement.

The annual base rent for the Company’s office located in Rockville, Maryland is $0.2 million, subject to annual 2.5% increases over the term of the lease. The applicable lease provided for a rent abatement for a period of 12 months following the Company’s date of occupancy. The lease has an initial term of 10 years from the date the Company made its first annual fixed rent payment, which occurred in January 2020. The Company has the option to extend the lease two times, each for a period of five years, and may terminate the lease as of the sixth anniversary of the first annual fixed rent payment, upon the payment of a termination fee.

The initial annual base rent for the Company’s office located in Chesterbrook, Pennsylvania is $0.2 million and the annual operating expenses are approximately $0.1 million. The annual base rent is subject to periodic increases of approximately 2.4% over the term of the lease. The lease has an initial term of 5.25 years from the lease commencement on December 1, 2021.

The weighted average remaining term of the operating leases at March 31, 2024 was 4.4 years.

Supplemental balance sheet information related to the leased properties include (in thousands):


	As of
	March 31, 2024		December 31, 2023
Property and equipment, net	$	1,280	$	1,329

Accrued expenses and other current liabilities	$	545	$	537
Other long-term liabilities	1,281		1,366
Total operating lease liabilities	$	1,826	$	1,903

The operating lease right-of-use (“ROU”) assets are included in property and equipment, net and the lease liabilities are included in accrued expenses and other current liabilities and other long-term liabilities in our unaudited condensed consolidated balance sheets. The Company utilized a weighted average discount rate of 9.1% to determine the present value of the lease payments.

The components of lease expense for the three months ended March 31, 2024 and 2023 were as follows (in thousands):


	Three Months Ended March 31,
	2024		2023
Operating lease cost*	$	108	$	120

*Includes short-term leases, which are immaterial.

The following table shows a maturity analysis of the operating lease liabilities as of March 31, 2024 (in thousands):

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	Undiscounted Cash Flows
April 1, 2024 through December 31, 2024	$	407
2025	553
2026	563
2027	259
2028	201
2029	207
Thereafter	17
Total lease payments	$	2,207
Less implied interest	(381)
Total	$	1,826

8. Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities as of March 31, 2024 and December 31, 2023 consisted of the following (in thousands):


	As of
	March 31, 2024		December 31, 2023
Research and development	$	329	$	352
Compensation and benefits	752		580
General and administrative (including asset acquisition related transaction costs)	1,934		830
Private placement investment transaction costs	2,034		—

Commercial operations	1,789		1,873

Lease liability, current	545		537

Total accrued expenses and other current liabilities	$	7,383	$	4,172

9. Notes Payable

On June 4, 2021, the Company entered into a $35.0 million venture loan and security agreement (the “Loan Agreement”) with Horizon Technology Finance Corporation (“Horizon”) and Powerscourt Investments XXV, LP (“Powerscourt”, and together with Horizon, the “Lenders”). Between June and September of 2021, the Company borrowed the full $35.0 million (the “Note”) available under the Loan Agreement.

In the second quarter of 2022, the Company, as collectively agreed upon with the Lenders, prepaid $15.0 million of principal and accrued interest. In June of 2023, the Company, as collectively agreed upon with the Lenders, prepaid $6.0 million of principal. On September 22, 2023, the Company and the Lenders entered into a Payoff Letter (the “Payoff Letter”), pursuant to which the Company repaid all outstanding principal, inclusive of the final payment fee, and interest under the Loan Agreement in the aggregate amount of $14.3 million. As a result of the payment, all obligations of the parties under the Loan Agreement were deemed satisfied and terminated.

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On June 4, 2021, pursuant to the Loan Agreement, the Company issued warrants to the Lenders to purchase 148 shares of the Company’s common stock with an exercise price of $7,488 per share (the “Warrants”). The Warrants are exercisable for ten years from the date of issuance. Pursuant to the Payoff Letter, Avalo’s obligations under the Warrants shall survive pursuant to the original terms at issuance. The Warrants, which met equity classification, were recognized as a component of permanent stockholders’ (deficit) equity within additional paid-in-capital and were recorded at the issuance date using a relative fair value allocation method. The Company recognized debt issuance costs and the amount allocated to the warrants as a debt discount on the date of issuance and amortized these costs to interest expense using the effective interest method over the original term of the loan. As a result of the payoff in the third quarter of 2023, the Company accelerated the remaining $0.9 million amortization of the debt discount, which was recognized as interest expense in the third quarter of 2023.

10. Capital Structure

Pursuant to the Company’s amended and restated certificate of incorporation, the Company is authorized to issue two classes of stock, common stock and preferred stock. At March 31, 2024, the total number of shares of capital stock the Company was authorized to issue was 205,000,000, of which 200,000,000 was common stock and 5,000,000 was preferred stock. All shares of common and preferred stock have a par value of $0.001 per share.

Almata Transaction

On March 27, 2024, the Company acquired AlmataBio in which the former AlmataBio stockholders received (i) 171,605 shares of the Company’s common stock and (ii) 2,412 shares of the Company’s Series C Preferred Stock. Subject to the Requisite Stockholder Approval, the date Company shareholders approve the issuance of common stock for conversion of Series C Preferred Stock and for exercise of warrants, each share of the Series C Preferred Stock issued to former AlmataBio stockholders will automatically convert to 1,000 shares of common stock, subject to certain beneficial ownership limitations. The Series C Preferred Stock holds no voting rights. Refer to Note 3 - Asset Acquisition for more information regarding the acquisition and refer to sub-header “Series C Preferred Stock” within the “Q1 2024 Financing” section below for more information regarding the Series C Preferred Stock issued pursuant to the Almata Transaction.

Q1 2024 Financing

On March 28, 2024, the Company closed a private placement investment with institutional investors in which the investors received (i) 19,946 shares of non-voting convertible preferred stock, the Series C Preferred Stock, and (ii) warrants to purchase up to an aggregate of 11,967,526 shares of Avalo’s common stock (or a number of shares of Series C Preferred Stock convertible into the number of shares of common stock the warrant is then exercisable into), resulting in upfront gross proceeds of $115.6 million. Net proceeds were $108.1 million after deducting transaction costs. The Company could receive up to an additional $69.4 million of gross proceeds upon the exercise of the warrants.

Warrants on common stock or Series C Preferred Stock issued in Q1 2024 Financing

The warrants are exercisable via gross physical settlement for $5.796933 per underlying share of common stock (or a number of shares of Series C Preferred Stock convertible into the number of shares of common stock the warrant is then exercisable into). The warrants will become exercisable on (i) March 28, 2024, if exercised for shares of Series C Preferred Stock, or (ii) upon receipt of Requisite Stockholder Approval if exercised for shares of common stock. The warrants will expire on the earlier of (y) the fifth anniversary of the date of issuance or (z) the Dosing Date (as defined in Note 6 - Fair Value Measurements), provided that if the Requisite Stockholder Approval has not been received by the Dosing Date, then the warrants will expire on the earlier of the (A) the fifth anniversary of the date of issuance or (B) thirty-first day following receipt of the Requisite Stockholder Approval. The warrants include anti-dilution protection provisions.

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The Company determined that the warrants do not satisfy the conditions to be accounted for as equity instruments. As the warrants do not meet the equity contract scope exception, the Company classified the warrants as a derivative liability upon issuance. The initial measurement of the warrant at fair value exceeded the proceeds received such that the difference between the initial fair value of the warrants and net upfront cash proceeds is recognized in the income statement as a loss. Subsequently, the warrants are carried at fair value with changes in fair value recognized in the Company’s unaudited consolidated statements of operations and comprehensive loss until either exercised or expired. The valuation of the warrants is considered under Level 3 of the fair value hierarchy due to the need to use assumptions in the valuation that are both significant to the fair value measurement and unobservable. See Note 6 - Fair Value Measurement for a description of the warrant’s valuation methodology.

No warrants were exercised for the quarterly period ended on March 31, 2024.

Upon exercise of the warrants, the Company will pay an additional amount of transaction costs to a third-party financial institution, based on 2.5% gross proceeds received from the exercise. As the warrants are in the money as of the quarterly period ended March 31, 2024, the Company has recognized $1.7 million for transaction costs within other expense, net. The Company also incurred an additional $7.5 million of transaction costs related to the private placement investment which were expensed within other expense, net.

Series C Preferred Stock issued in the Almata Transaction and Q1 2024 Financing

As of March 31, 2024, the Company had 5,000,000 shares of Preferred Stock authorized, of which 34,326 have been designated as Series C Preferred Stock. As of March 31, 2024, there were 22,358 shares of Series C Preferred Stock outstanding, with a par value of $0.001 per share. The Series C Preferred Stock have no voting rights, no liquidation preference, and are not redeemable. In the event of any liquidation, dissolution or winding up of the Company, Series C Preferred Stock are entitled to be paid out of the assets with the Company legally available for distribution to its stockholders on an as-converted and pari-passu basis with common stock. The Series C Preferred Stock is subject to broad-based weighted average anti-dilution protection for certain issuances of common stock and securities convertible into common stock. The Series C Preferred Stock are entitled to receive dividends equal to and in the same form, and in the same manner, based on the then-current conversion ratio as dividends actually paid on shares of the common stock, when, as and if such dividends are paid on shares of the common stock. Upon Requisite Stockholder Approval, each share of Series C Preferred Stock (i) issued to the former AlmataBio stockholders (as discussed above) and (ii) pursuant to the private placement investment will automatically convert to 1,000 shares of common stock, subject to certain beneficial ownership limitations.

The Series C Preferred Stock is contingently redeemable outside the control of the Company such that the Series C Preferred Stock is recognized outside of permanent equity. The carrying value of Series C Preferred Stock issued to the former AlmataBio stockholders pursuant to the Almata Transaction of $11.5 million is recognized outside of stockholder’s (deficit) equity on the Company’s unaudited consolidated balance sheet. No amounts were allocated to the Series C Preferred Stock issued pursuant to the Q1 2024 Financing because the initial fair value of the warrants exceeded gross proceeds received for the issuance of the private placement bundle that included both Series C Preferred Stock and warrants. The Series C Preferred Stock is not remeasured to redemption value until the shares are probable of becoming redeemable for cash. As of March 31, 2024, the Company expects to have sufficient authorized and unissued shares to settle the Series C Preferred Stock upon Requisite Stockholder Approval, and therefore it is not probable that the Series C Preferred Stock would be redeemable for cash as of the balance sheet date.

As of March 31, 2024, no Series C Preferred Stock were converted to common stock.

Series D and Series E Preferred Stock issued in the Q1 2024 Financing

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As a condition to the Q1 2024 Financing, a single Series D Preferred Stock and a single Series E Preferred Stock were issued to two institutional investors that participated in the private placement. Both the Series D and the Series E Preferred Stock have a par value and liquidation preference of $0.001 per share. The Series D and Series E Preferred Stock do not have voting rights, are not entitled to dividends, and are not convertible into common stock. The holders of the Series D and Series E Preferred Stock have the option to require the Company to redeem their shares at a price equal to the par value at any time. The Company retains the right to redeem the Series D and Series E Preferred Stock at a price equal to the par value if the holder owns less than a certain threshold of the Company’s outstanding common stock. While the Series D and Series E Preferred Stock do not provide the holders with substantive economics, the Series D and Series E Preferred Stock were issued solely to allow for the institutional investors to appoint a director to the Company’s board of directors.

Common Stock Warrants

At March 31, 2024, the following common stock warrants were outstanding:


Number of common shares	Exercise price			Expiration
underlying warrants	per share			date
1,389	$	36,000		June 2024
148	$	7,488		June 2031
11,967,526	$	5.80	(1)	(1)
11,969,063

(1) The warrants will become exercisable (i) on March 28, 2024, if exercised for shares of Series C Preferred Stock, or (ii) upon receipt of Requisite Stockholder Approval, the date Company shareholders approve the issuance of common stock for conversion of Series C Preferred Stock and for exercise of warrants, if exercised for shares of common stock. The warrants will expire on the earlier of (y) the fifth anniversary of the date of issuance or (z) the thirty-first day following the Dosing Date, provided that if the Requisite Stockholder Approval has not been received by the Dosing Date, then the warrants will expire on the earlier of the (A) the fifth anniversary of the date of issuance or (B) thirty-first day following receipt of the Requisite Stockholder Approval. The warrants include anti-dilution protection provisions.

11. Stock-Based Compensation

2016 Equity Incentive Plan

In April 2016, our board of directors adopted the 2016 Equity Incentive Plan, which was approved by our stockholders in May 2016 and which was subsequently amended and restated in May 2018 and August 2019 with the approval of our board of directors and our stockholders (the “2016 Third Amended Plan”). During the term of the 2016 Third Amended Plan, the share reserve will automatically increase on the first trading day in January of each calendar year ending on (and including) January 1, 2026, by an amount equal to 4% of the total number of outstanding shares of common stock of the Company on the last trading day in December of the prior calendar year. On January 1, 2024, pursuant to the terms of the 2016 Third Amended Plan, an additional 32,070 shares were made available for issuance. As of March 31, 2024, there were 32,520 shares available for future issuance under the 2016 Third Amended Plan.

Option grants expire after ten years. Employee options typically vest over four years. Employees typically receive a new hire option grant, as well as an annual grant in the first or second quarter of each year. Options granted to directors typically vest either immediately or over a period of one or three years. Directors may elect to receive stock options in lieu of board compensation, which vest immediately. For stock options granted to employees and non-employee directors, the estimated grant date fair market value of the Company’s stock-based awards is amortized ratably over the individuals’ service periods, which is the period in which the awards vest. Stock-based compensation expense includes expense related to stock options and employee stock purchase plan shares. The amount of stock-based compensation expense recognized for the three months ended March 31, 2024 and 2023 was as follows (in thousands):

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	Three Months Ended March 31,
	2024		2023
Research and development	$	269	$	326
General and administrative	360		529
Total stock-based compensation	$	629	$	855

Stock options with service-based vesting conditions

The Company has granted options that contain service-based vesting conditions. The compensation cost for these options is recognized on a straight-line basis over the vesting periods. A summary of option activity for the three months ended March 31, 2024 is as follows:


	Options Outstanding
	Number of shares	Weighted average exercise price per share		Weighted average grant date fair value per share		Weighted average remaining contractual term (in years)
Balance at December 31, 2023	7,211	$	3,192	$	1,930	8.3
Granted	—	$	—	$	—


Forfeited	(13)	$	660	$	473
Expired	(3)	$	11,232	$	6,444
Balance at March 31, 2024	7,195	$	3,192	$	1,936	8.0

Exercisable at March 31, 2024	4,058	$	4,791	$	2,803	7.4

The aggregate intrinsic value of stock options is calculated as the difference between the exercise price of the stock options and the fair value of the Company’s common stock for those stock options that had exercise prices lower than the fair value of the Company’s common stock. As of March 31, 2024, the aggregate intrinsic value of options outstanding was minimal. There were 545 options that vested during the three months ended March 31, 2024 with a weighted average exercise price of $1,598 per share. The total grant date fair value of shares which vested during the three months ended March 31, 2024 was $0.6 million.

The Company recognized stock-based compensation expense of $0.6 million related to stock options with service-based vesting conditions for the three months ended March 31, 2024. At March 31, 2024, there was $2.2 million of total unrecognized compensation cost related to unvested service-based vesting condition awards. The unrecognized compensation cost is expected to be recognized over a weighted-average period of 1.4 years.

Stock-based compensation assumptions

There were no stock options granted in the three months ended March 31, 2024.

Stock options with market-based vesting conditions

As of March 31, 2024, there were 348 exercisable stock options that contained market-based vesting conditions (that had been previously satisfied). The options have a weighted average share price per share of $9,488 and a weighted average remaining contractual term of 0.2 years. There were no stock options with market-based vesting conditions granted, exercised, or forfeited for the three months ended March 31, 2024.

Employee Stock Purchase Plan

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On April 5, 2016, the Company’s board of directors approved the 2016 Employee Stock Purchase Plan (the “ESPP”). The ESPP was approved by the Company’s stockholders and became effective on May 18, 2016 (the “ESPP Effective Date”).

Under the ESPP, eligible employees can purchase common stock through accumulated payroll deductions at such times as are established by the administrator. The ESPP is administered by the compensation committee of the Company’s board of directors. Under the ESPP, eligible employees may purchase stock at 85% of the lower of the fair market value of a share of the Company’s common stock (i) on the first day of an offering period or (ii) on the purchase date. Eligible employees may contribute up to 15% of their earnings during the offering period. The Company’s board of directors may establish a maximum number of shares of the Company’s common stock that may be purchased by any participant, or all participants in the aggregate, during each offering or offering period. Under the ESPP, a participant may not accrue rights to purchase more than $25,000 of the fair market value of the Company’s common stock for each calendar year in which such right is outstanding.

The Company initially reserved and authorized up to 174 shares of common stock for issuance under the ESPP. On January 1 of each calendar year, the aggregate number of shares that may be issued under the ESPP automatically increases by a number equal to the lesser of (i) 1% of the total number of shares of the Company’s capital stock outstanding on December 31 of the preceding calendar year, (ii) 174 shares of the Company’s common stock, or (iii) a number of shares of the Company’s common stock as determined by the Company’s board of directors or compensation committee. On January 1, 2024, the number of shares available for issuance under the ESPP increased by 174. As of March 31, 2024, 958 shares remained available for issuance.

In accordance with the guidance in ASC 718-50, Employee Share Purchase Plans, the ability to purchase shares of the Company’s common stock at the lower of the offering date price or the purchase date price represents an option and, therefore, the ESPP is a compensatory plan under this guidance. Accordingly, stock-based compensation expense is determined based on the option’s grant-date fair value and is recognized over the requisite service period of the option. The Company used the Black-Scholes valuation model and recognized minimal stock-based compensation expense for the three months ended March 31, 2024.

12. Income Taxes

The Company recognized minimal income tax expense for the three months ended March 31, 2024 and 2023 due to the significant valuation allowance against the Company’s deferred tax assets and the current and prior period losses.

13. Commitments and Contingencies

Litigation

Litigation - General

The Company may become party to various contractual disputes, litigation, and potential claims arising in the ordinary course of business. Reserves are established in connection with such matters when a loss is probable and the amount of such loss can be reasonably estimated. The Company currently does not believe that the resolution of such matters will have a material adverse effect on its financial position or results of operations except as otherwise disclosed in this report.

Dispute Notice Settlement

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On August 14, 2023, the Company received a notice from Apollo AP43 Limited alleging that the Company was in breach of the license agreement between them dated July 29, 2022 by virtue of owing $0.8 million to a service provider under the terms of that license. On January 25, 2024, the Company and Apollo entered into a settlement and release agreement, pursuant to which Avalo agreed to pay Apollo $0.2 million to settle the dispute and Apollo released Avalo from any and all liabilities or claims relating to the dispute that Apollo may have against Avalo from the date of the license agreement through the date of the settlement and release agreement. The Company recognized the $0.2 million settlement within accrued expenses and other current liabilities as of December 2023 and made the $0.2 million settlement payment in the first quarter of 2024.

Possible Future Milestone Payments for In-Licensed Compounds

General

Avalo is a party to license and development agreements with various third parties, which contain future payment obligations such as royalties and milestone payments. The Company recognizes a liability (and related expense) for each milestone if and when such milestone is probable and can be reasonably estimated. As typical in the biotechnology industry, each milestone has unique risks that the Company evaluates when determining the probability of achieving each milestone and the probability of success evolves over time as the programs progress and additional information is obtained. The Company considers numerous factors when evaluating whether a given milestone is probable including (but not limited to) the regulatory pathway, development plan, ability to dedicate sufficient funding to reach a given milestone and the probability of success.

AVTX-009 Agreements

On March 27, 2024, Avalo obtained the rights to an anti-IL-1β mAb (AVTX-009), including the world-wide exclusive license from Eli Lilly and Company (the “Lilly License Agreement”), pursuant to its acquisition of AlmataBio. AlmataBio had previously purchased the rights, title and interest in the asset from Leap Therapeutics, Inc. (“Leap”) in 2023.

Avalo is required to pay up to $70 million based on the achievement of specified development and regulatory milestones. Upon commercialization, the Company is required to pay sales-based milestones aggregating up to $720 million. Additionally, Avalo is required to pay royalties during a country-by-country royalty term equal to a mid-single digit-to-low double digit of Avalo or its sublicensees’ annual net sales.

No expense related to these AVTX-009 agreements was recognized in the three months ended March 31, 2024. There has been no cumulative expense recognized as of March 31, 2024 related to the milestones under these AVTX-009 agreements. The Company will continue to monitor the milestones at each reporting period.

Refer to the sub-header below entitled “Acquisition Related and Other Contingent Liabilities” for information regarding future development milestones that are payable to the former AlmataBio stockholders.

AVTX-002 KKC License Agreement

On March 25, 2021, the Company entered into a license agreement with Kyowa Kirin Co., Ltd. (“KKC”) for exclusive worldwide rights to develop, manufacture and commercialize AVTX-002, KKC’s first-in-class fully human anti-LIGHT (TNFSF14) monoclonal antibody for all indications (the “KKC License Agreement”). The KKC License Agreement replaced the Amended and Restated Clinical Development and Option Agreement between the Company and KKC dated May 28, 2020.

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Under the KKC License Agreement, the Company paid KKC an upfront license fee of $10.0 million, which we recognized within research and development expenses in 2021. The Company is also required to pay KKC up to an aggregate of $112.5 million based on the achievement of specified development and regulatory milestones. Upon commercialization, the Company is required to pay KKC sales-based milestones aggregating up to $75.0 million tied to the achievement of annual net sales targets.

Additionally, the Company is required to pay KKC royalties during a country-by-country royalty term equal to a mid-teen percentage of annual net sales. The Company is required to pay KKC a double-digit percentage (less than 30%) of the payments that the Company receives from any sublicensing of its rights under the KKC License Agreement, subject to certain exclusions. Avalo is responsible for the development and commercialization of AVTX-002 in all indications worldwide (other than the option in the KKC License Agreement that, upon exercise by KKC, allows KKC to develop, manufacture and commercialize AVTX-002 in Japan). In addition to the KKC License Agreement, Avalo is subject to additional royalties upon commercialization of up to an amount of less than 10% of net sales.

No expense related to the KKC License Agreement was recognized in the three months ended March 31, 2024. There has been no cumulative expense recognized as of March 31, 2024 related to the milestones under the KKC License Agreement. The Company will continue to monitor the milestones at each reporting period.

AVTX-008 Sanford Burnham Prebys License Agreement

On June 22, 2021, the Company entered into an Exclusive Patent License Agreement with Sanford Burnham Prebys Medical Discovery Institute (the “Sanford Burnham Prebys License Agreement”) under which the Company obtained an exclusive license to a portfolio of issued patents and patent applications covering an immune checkpoint program (AVTX-008).

Under the terms of the Sanford Burnham Prebys License Agreement, the Company incurred an upfront license fee of $0.4 million, as well as patent costs of $0.5 million, which we recognized within research and development expenses and within general and administrative expenses, respectively, in 2021. The Company is required to pay Sanford Burnham Prebys up to an aggregate of $24.2 million based on achievement of specified development and regulatory milestones. Upon commercialization, the Company is required to pay Sanford Burnham Prebys sales-based milestone payments aggregating up to $50.0 million tied to annual net sales targets. Additionally, the Company is required to pay Sanford Burnham Prebys royalties during a country-by-country royalty term equal to a low-to-mid single digit percentage of annual net sales. The Company is also required to pay Sanford Burnham Prebys a tiered low-double digit percentage of the payments that Avalo receives from sublicensing of its rights under the Sanford Burnham Prebys License Agreement, subject to certain exclusions. Avalo is fully responsible for the development and commercialization of the program.

No material expense related to the Sanford Burnham Prebys License Agreement was recognized in the three months ended March 31, 2024. There has been no cumulative expense recognized as of March 31, 2024 related to the milestones under this license agreement. The Company will continue to monitor the milestones at each reporting period.

AVTX-006 Astellas License Agreement

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The Company has an exclusive license agreement with OSI Pharmaceuticals, LLC, an indirect wholly owned subsidiary of Astellas Pharma, Inc. (“Astellas”), for the worldwide development and commercialization of the novel, second generation mTORC1/2 inhibitor (AVTX-006). Under the terms of the license agreement, there was an upfront license fee of $0.5 million. The Company is required to pay Astellas up to an aggregate of $5.5 million based on the achievement of specified development and regulatory milestones. The Company is also required to pay Astellas a tiered mid-to-high single digit percentage of the payments that Avalo receives from any sublicensing of its rights under the Astellas license agreement, subject to certain exclusions. Upon commercialization, the Company is required to pay Astellas royalties during a country-by-country royalty term equal to a tiered mid-to-high single digit percentage of annual net sales. Avalo is fully responsible for the development and commercialization of the program.

No expense related to this license agreement was recognized in the three months ended March 31, 2024. There has been $0.5 million of cumulative expense recognized as of March 31, 2024 related to the milestones under this license agreement. The Company will continue to monitor the remaining milestones at each reporting period.

Possible Future Milestone Proceeds for Out-Licensed Compounds

AVTX-301 Out-License

On May 28, 2021, the Company out-licensed its rights in respect of its non-core asset, AVTX-301, to Alto Neuroscience, Inc. (“Alto”). The Company initially in-licensed the compound from an affiliate of Merck & Co., Inc. in 2013.

Under the out-license agreement, the Company received a mid-six digit upfront payment from Alto, which we recognized as license revenue in 2021. The Company is also eligible to receive up to an aggregate of $18.6 million based on the achievement of specified development, regulatory and commercial sales milestones. Additionally, the Company is entitled to a less than single digit percentage royalty based on annual net sales. Alto is fully responsible for the development and commercialization of the program.

The Company had not recognized any milestones as of March 31, 2024.

AVTX-406 License Assignment

On June 9, 2021, the Company assigned its rights, title, interest, and obligations under an in-license covering its non-core asset, AVTX-406, to ES, a wholly owned subsidiary of Armistice, who was a significant stockholder of the Company at the time of the financing and whose chief investment officer, Steven Boyd, and managing director, Keith Maher, served on Avalo’s Board until August 8, 2022. The transaction with ES was approved in accordance with Avalo’s related party transaction policy.

Under the assignment agreement, the Company received a low-six digit upfront payment from ES, which we recognized as license revenue in 2021. The Company is also eligible to receive up to an aggregate of $6.0 million based on the achievement of specified development and regulatory milestones. Upon commercialization, the Company is eligible to receive sales-based milestone payments aggregating up to $20.0 million tied to annual net sales targets. ES is fully responsible for the development and commercialization of the program.

The Company had not recognized any milestones as of March 31, 2024.

AVTX-800 Series Asset Sale

On October 27, 2023, the Company sold its rights, title and interests in assets relating to the 800 Series to AUG.

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Pursuant to the Purchase Agreement with AUG, the Company received an upfront payment of $0.2 million. Additionally, AUG assumed aggregate liabilities of $0.4 million, which included certain liabilities incurred prior to the date of the Purchase Agreement, costs due and payable between the date of the Purchase Agreement and the closing date, and obligations under 800 Series contracts assumed by AUG. Avalo is also entitled to a contingent milestone payment of 20% of certain amounts, if any, granted to AUG upon sale of any priority review voucher related to the 800 Series compounds granted to AUG by the FDA, net of any selling costs, or $15.0 million for each compound (for a potential aggregate of $45.0 million) if the first FDA approval is for any indication other than a Rare Pediatric Disease (as defined in the Purchase Agreement).

The Company had not recognized any revenue related to the milestones as of March 31, 2024.

Acquisition Related and Other Contingent Liabilities

Almata Transaction Possible Future Milestone Payments

On March 27, 2024, the Company acquired AVTX-009 through its acquisition of AlmataBio. The Company agreed to an aggregate milestone payment of $7.5 million in cash due upon the closing of the private placement investment (which closed on March 28, 2024), a second aggregate milestone payment of $5.0 million due upon the first patient being dosed in a Phase 2 trial for the indication of hidradenitis suppurative and a third aggregate milestone payment of $15.0 million due upon the first patient being dosed in a Phase 3 trial (regardless of indication). The former Almata stockholders have the option to elect to have the second and third milestone payments be paid in cash, shares of Avalo common stock or a combination thereof.

The Company recognized the $7.5 million initial milestone payment as a current liability within contingent consideration as of March 31, 2024 and paid this milestone on April 1, 2024. In addition, as of March 31, 2024, the Company concluded the second milestone payment was probable and therefore recognized the $5.0 million milestone as a current liability within contingent consideration as of March 31, 2024. The Company will continue to monitor the third milestone each reporting period.

Aevi Merger Possible Future Milestone Payments

In the first quarter of 2020, the Company consummated its merger with Aevi Genomic Medicine Inc. (“Aevi”), in which Avalo acquired the rights to AVTX-002, AVTX-006 and AVTX-007 (the “Merger” or the “Aevi Merger”). A portion of the consideration for the Aevi Merger included two future contingent development milestones worth up to an additional $6.5 million, payable in either shares of Avalo’s common stock or cash, at the election of Avalo.

The first milestone was the enrollment of a patient in a Phase 2 study related to AVTX-002 (for treatment of pediatric onset Crohn’s disease), AVTX-006 (for treatment of any indication) or AVTX-007 (for treatment of any indication) prior to February 3, 2022, which would have resulted in a milestone payment of $2.0 million. The Company did not meet the first milestone prior to February 3, 2022. Therefore, no contingent consideration related to this milestone was recognized as of March 31, 2024 and no future contingent consideration will be recognized.

The second milestone is the receipt of an NDA approval for either AVTX-006 or AVTX-007 from the FDA on or prior to February 3, 2025. If this milestone is met, the Company is required to make a milestone payment of $4.5 million. The contingent consideration related to the second development milestone will be recognized if and when such milestone is probable and can be reasonably estimated. No contingent consideration related to the second development milestone had been recognized as of March 31, 2024. The Company will continue to monitor the second milestone each reporting period.

AVTX-006 Royalty Agreement with Certain Related Parties

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In July 2019, Aevi entered into a royalty agreement, and liabilities thereunder were assumed by Avalo upon close of the Aevi Merger in February 2020. The royalty agreement provided certain investors, including LeoGroup Private Investment Access, LLC on behalf of Garry Neil, the Company’s Chief Executive Officer and Chairman of the Board, and Mike Cola, the Company’s former Chief Executive Officer (collectively, the “Investors”), a royalty stream, in exchange for a one-time aggregate payment of $2.0 million (the “Royalty Agreement”). Pursuant to the Royalty Agreement, the Investors will be entitled collectively to an aggregate amount equal to a low-single digit percentage of the aggregate net sales of the Company’s second generation mTORC1/2 inhibitor, AVTX-006. At any time beginning three years after the date of the first public launch of AVTX-006, Avalo may exercise, at its sole discretion, a buyout option that terminates any further obligations under the Royalty Agreement in exchange for a payment to the Investors of an aggregate of 75% of the net present value of the royalty payments. A majority of the independent members of the board of directors and the audit committee of Aevi approved the Royalty Agreement.

Avalo assumed this Royalty Agreement upon closing of the Aevi Merger and it is recorded as a royalty obligation within the Company's accompanying unaudited condensed consolidated balance sheet as of March 31, 2024 and December 31, 2023. Because there is a significant related party relationship between the Company and the Investors, the Company has treated its obligation to make royalty payments under the Royalty Agreement as an implicit obligation to repay the funds advanced by the Investors. As the Company makes royalty payments in accordance with the Royalty Agreement, it will reduce the liability balance. At the time that such royalty payments become probable and estimable, and if such amounts exceed the liability balance, the Company will impute interest accordingly on a prospective basis based on such estimates, which will result in a corresponding increase in the liability balance.

Karbinal Royalty Make-Whole Provision

In 2018, in connection with the acquisition of certain commercialized products, the Company entered into a supply and distribution agreement (the “Karbinal Agreement”) with TRIS Pharma Inc. (“TRIS”). As part of the Karbinal Agreement, the Company had an annual minimum sales commitment, which is based on a commercial year that spans from August 1 through July 31, of 70,000 units through 2025. The Company was required to pay TRIS a royalty make whole payment (“Make-Whole Payments”) of $30 for each unit under the 70,000 units annual minimum sales commitment through 2025.

As a part of the Aytu transaction, the Company assigned all its payment obligations, including the Make-Whole Payments, under the Karbinal Agreement (collectively, the “TRIS Obligations”) to Aytu. However, under the original license agreement, the Company could ultimately be liable for the TRIS Obligations to the extent Aytu fails to make the required payments. The future Make-Whole Payments to be made by Aytu are unknown as the amount owed to TRIS is dependent on the number of units sold.

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

This Quarterly Report on Form 10-Q/A and the information incorporated herein by reference contain forward-looking statements that involve a number of risks and uncertainties, as well as assumptions that, if they never materialize or prove incorrect, could cause our results to differ materially from those expressed or implied by such forward-looking statements. Forward-looking statements can be identified by the use of forward-looking words such as “projects,” “may,” “might,” “will,” “could,” “would,” “should,” “continue,” “seeks,” “aims,” “predicts,” “believes,” “expects,” “anticipates,” “estimates,” “intends,” “plans,” “potential,” “pro forma” or other similar words (including their use in the negative), or by discussions of future matters such as: the future financial and operational outlook; the development of product candidates; and other statements that are not historical. Although our forward-looking statements reflect the good faith judgment of our management, these statements can only be based on facts and factors currently known by us. Consequently, forward-looking statements are inherently subject to risks and uncertainties, and actual results and outcomes may differ materially from results and outcomes discussed in the forward-looking statements. Factors that could cause or contribute to these differences include those below and elsewhere in this Quarterly Report on Form 10-Q/A, particularly in Part II – Item 1A, “Risk Factors,” as well as in our Annual Report on Form 10-K filed with the Securities and Exchange Commission, or SEC, on March 29, 2024, and in our other filings with the SEC. Statements made herein are as of the date of the filing of the Original Form 10-Q with the SEC and should not be relied upon as of any subsequent date. Unless otherwise required by applicable law, we do not undertake, and we specifically disclaim any obligation to update any forward-looking statements to reflect occurrences, developments, unanticipated events or circumstances after the date of such statement.

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our unaudited financial statements and related notes that appear in Item 1 of this Quarterly Report on Form 10-Q/A and with our audited financial statements and related notes for the year ended December 31, 2023 appearing in our Annual Report on Form 10-K filed with the SEC on March 29, 2024.

Overview

Management’s primary evaluation of the success of the Company is the ability to progress its pipeline assets forward towards commercialization or opportunistically out-licensing rights to indications or geographies. We believe the ability to achieve the anticipated milestones as presented in the following chart represents our most immediate evaluation points as to the progress of our goal to move the pipeline forward.

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Recent Developments

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On March 27, 2024, the Company acquired AVTX-009, a Phase 2-ready anti-IL-1β mAb, through a merger with AlmataBio Inc. (“AlmataBio”) with and into its wholly owned subsidiary (the “Almata Transaction”). Additionally, on March 28, 2024, the Company closed a private placement investment for up to $185 million in gross proceeds, including an initial upfront gross investment of $115.6 million. The upfront net proceeds were approximately $108.1 million after deducting transaction costs. The Company could receive up to an additional $69.4 million of gross proceeds upon the exercise of warrants issued in the financing.

Liquidity

Our Strategy

Our strategy for increasing stockholder value includes:

•Advancing our pipeline of compounds through development and to regulatory approval;

•Developing the go-to-market strategy to quickly and effectively market, launch, and distribute each of our compounds that receive regulatory approval;

•Opportunistically out-licensing rights to indications or geographies; and

•Acquiring or licensing rights to targeted, complementary differentiated preclinical and clinical stage compounds.

Results of Operations

Comparison of the Three Months Ended March 31, 2024 and 2023

Product Revenue, Net

There was no net product revenue for the three months ended March 31, 2024, compared to $0.5 million for the three months ended March 31, 2023. The decrease was driven by the planned expiration of our license and supply agreement for our only commercially marketed product, Millipred® on September 30, 2023.

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We do not expect gross product revenue for Millipred®, which the Company considered a non-core asset. However, the Company will continue to monitor estimates for commercial liabilities, such as sales returns. As additional information becomes available, the Company could recognize expense (or benefit) for differences between actuals or updated estimates to the reserves previously recognized.

Cost of Product Sales

Cost of product sales were minimal for the three months ended March 31, 2024, compared to $0.6 million for the same period in 2023. The decrease in cost of product sales during the period was primarily related to the expiration of Avalo’s license and supply agreement for Millipred® on September 30, 2023.

The Company will continue to monitor estimates for commercial liabilities, such as sales returns, profit share with the supplier pursuant to the reconciliation process, and commercial activity with Aytu BioScience, Inc, who previously managed Millipred® commercial operations on our behalf for an interim period. As additional information becomes available, the Company could recognize expense (or a benefit) for differences between actuals or updated estimates to the reserves previously recognized, which could be recognized in cost of product sales.

Research and Development Expenses

The following table summarizes our research and development expenses for the three months ended March 31, 2024 and 2023 (in thousands):


	Three Months Ended March 31,
	2024		2023
Nonclinical expenses	$	152	$	364
Clinical expenses	62		2,776
CMC expenses	254		1,292

Internal expenses:
Salaries, benefits and related costs	1,324		1,193
Stock-based compensation expense	269		326
Other	55		57
	$	2,116	$	6,008

Research and development expenses decreased $3.9 million for the three months ended March 31, 2024. This decrease was mainly driven by a $2.7 million decrease in clinical expenses and a $1.0 million decrease in chemistry, manufacturing, and controls (“CMC”) expenses. Clinical and CMC expenses decreased due to decreased activities as a result of the AVTX-002 PEAK trial concluding in June of 2023 and the corresponding timing of raw material orders.

We expect future research and development expenses to increase in 2024 as a result of acquiring AVTX-009 in late March 2024 and our associated development plans.

Acquired in-process research and development

In the first quarter of 2024, we acquired AVTX-009, a Phase 2 ready anti-IL-1β mAb, through a merger with AlmataBio, Inc. (“AlmataBio”) and its wholly owned subsidiary (the “Almata Transaction”), resulting in us acquiring $27.5 million of in-process research and development (“IPR&D”). The fair value of the IPR&D, substantially all of which is related to AVTX-009, was immediately recognized as acquired IPR&D expense as there is no alternative future use. There was no acquired IPR&D for the three months ended March 31, 2023.

General and Administrative Expenses

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The following table summarizes our general and administrative expenses for the three months ended March 31, 2024 and 2023 (in thousands):


	Three Months Ended March 31,
	2024		2023

Salaries, benefits and related costs	$	909	$	754
Legal, consulting and other professional expenses	1,576		1,182
Stock-based compensation expense	360		529
Advertising and marketing expense	7		13
Other	341		230
	$	3,193	$	2,708

General and administrative expenses increased $0.5 million for the three months ended March 31, 2024 compared to the prior period. The increase was driven by $0.4 million increase in legal, consulting and other professional expenses for consulting activities incurred prior the close of the Almata Transaction.

While we expect the majority of operating expense increases will be focused on research and development activities to progress AVTX-009, we also expect moderate increases to general and administrative expenses to support the AVTX-009 program.

Other Expense, Net

The following table summarizes our other expense, net for the three months ended March 31, 2024 and 2023 (in thousands):


	Three Months Ended March 31,
	2024		2023

Excess of warrant fair value over private placement proceeds	(79,276)		—
Private placement transaction costs	(9,220)		—
Change in fair value of derivative liability	(120)		(180)
Interest income (expense), net	100		(949)
Other expense, net	—		(26)
	$	(88,516)	$	(1,155)

Other expense, net increased for the three months ended March 31, 2024 compared to the prior period primarily due to the excess of warrant fair value over private placement proceeds. On March 28, 2024, the Company closed a private placement investment with institutional investors in which the investors received shares of Series C Preferred Stock and warrants to purchase shares of Avalo’s common stock (or number of shares of Series C Preferred Stock convertible into the number of shares of common stock the warrant is then exercisable into).

The warrants did not meet the equity contract scope exception and therefore were classified as a liability upon issuance. The initial measurement of the warrant liability of $194.9 million exceeded the proceeds received from the private placement investment of $115.6 million, which resulted in a $79.3 million loss recognized in other expense, net. The fair value of the warrant liability was estimated using a Black-Scholes option-pricing model and the key input driving the fair value was the closing stock price of $21.75 on March 28, 2024, which was the initial valuation date, as well as the last trading day of the first quarter of 2024.

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As the warrants are carried at fair value, future changes in fair value will be recognized in other (expense) income, net at each reporting period until the warrants are either exercised or expired. Notably, future increases or decreases to the stock price at each reporting period will drive increases or decreases, respectively, to the fair value of the warrant liability. The warrants are set to expire on the earlier of five years from the date of issuance or 30 days after the public announcement of the first patient dosed in a Phase 2 trial of AVTX-009 in hidradenitis suppurativa (the “Dosing Date”). However, if the Requisite Stockholder Approval, the date the Company shareholders approve the issuance of common stock for conversion of Series C Preferred Stock and for exercise of warrants, has not been received by the Dosing Date, then the warrants will expire on the earlier of the five years from the date of issuance or 30 days following receipt of the Requisite Stockholder Approval. Refer to Note 6 - Fair Value Measurements of the unaudited consolidated financial statements for more information.

Additionally, other expense, net increased as a result of the recognition of $9.2 million of private placement transaction costs, largely consisting of the placement agent fee of $7.0 million due on the transaction close date, and $1.7 million fee payable upon exercise of the warrants issued in the private placement investment. The Company recognized this $1.7 million fee within other expense, net given the warrants are in the money as of the quarterly period ended March 31, 2024.

Finally, the Company fully paid off its loan in the third quarter of 2023, driving the change in interest income (expense) from the prior period.

Income Tax Expense

The Company recognized minimal income tax expense for both the three months ended March 31, 2024 and 2023.

Liquidity and Capital Resources

Uses of Liquidity

The Company uses cash to primarily fund the ongoing development of its research and development pipeline assets, mainly AVTX-009, and costs associated with its organizational infrastructure.

Cash Flows

The following table summarizes our cash flows for the three months ended March 31, 2024 and 2023 (in thousands):


	Three Months Ended March 31,
	2024		2023

Net cash (used in) provided by:
Operating activities	$	(6,202)	$	(10,052)
Investing activities	356		(133)
Financing activities	108,612		13,748
Net increase in cash and cash equivalents	$	102,766	$	3,563

Net cash used in operating activities

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Net cash used in operating activities was $6.2 million for the three months ended March 31, 2024 and consisted primarily of a net loss of $121.3 million and adjustments to reconcile net loss to net cash used in operating activities including the excess of warrant fair value over private placement investment proceeds of $79.3 million, acquired IPR&D of $27.5 million, transaction costs payable upon exercise of the warrants issued pursuant to the private placement investment of $1.7 million, and stock-based compensation of $0.6 million. Accrued expenses and other liabilities increased primarily due to the $1.7 million transaction costs payable upon exercise of the warrants issued pursuant to the private placement investment.

Net cash used in operating activities was $10.1 million for the three months ended March 31, 2023, and consisted primarily of a net loss of $10.0 million and non-cash adjustments to reconcile cash used in operating activities including stock-based compensation expense of $0.9 million. Changes in net liabilities were primarily driven by a $4.9 million decrease in accrued expenses and other liabilities partially offset by a $2.7 million increase in accounts payable and $1.1 million decrease in other receivables.

We expect future cash used in operating activities to increase in 2024 as a result of acquiring AVTX-009 in March 2024 and our associated development plans.

Net cash provided by (used in) investing activities

Net cash provided by investing activities for the three months ended March 31, 2024 consisted of the cash acquired as part of the Almata Transaction. Net cash used in investing activities was minimal for the three months ended March 31, 2023.

Net cash provided by financing activities

Net cash provided by financing activities for the three months ended March 31, 2024 consisted of gross proceeds of $115.6 million from the private placement investment that closed on March 28, 2024 partially offset by transaction costs paid related to the private placement investment of $7.0 million.

Net cash provided by financing activities for the three months ended March 31, 2023 consisted of net proceeds of $13.7 million from an underwritten public offering closed in February 2023.

The Company could receive up to an additional $69.4 million of gross proceeds upon the exercise of the warrants that were issued pursuant to the private placement investment that closed on March 28, 2024. The warrants are exercisable for approximately $5.80 per underlying share of common stock (or a number of shares of Series C Preferred Stock convertible into the number of shares of common stock the warrant is then exercisable into) until the earlier of five years from the date of issuance or 30 days after the Dosing Date. However, if the Requisite Stockholder Approval, the date the Company shareholders approve the issuance of common stock for conversion of Series C Preferred Stock and for exercise of warrants, has not been received by the Dosing Date, then the warrants will expire on the earlier of the five years from the date of issuance of 30 days following receipt of the Requisite Stockholder Approval.

Critical Accounting Policies, Estimates, and Assumptions

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This Management’s Discussion and Analysis of Financial Condition and Results of Operations is based on our unaudited condensed consolidated financial statements included in this Quarterly Report on Form 10-Q/A, which have been prepared in accordance with GAAP. In preparing the financial statements in conformity with GAAP, the Company makes estimates and assumptions that have an impact on assets, liabilities, revenue and expenses reported. These estimates can also affect supplemental information disclosed by us, including information about contingencies, risk, and financial condition. In our unaudited condensed consolidated financial statements, estimates are used for, but not limited to, revenue recognition, cost of product sales, stock-based compensation, fair value measurements, the valuation of derivative liabilities, cash flows used in management’s going concern assessment, income taxes, goodwill, and clinical trial accruals. The Company believes, given current facts and circumstances, that our estimates and assumptions are reasonable, adhere to GAAP and are consistently applied. Inherent in the nature of an estimate or assumption is the fact that actual results may differ from estimates, and estimates may vary as new facts and circumstances arise. Our most critical accounting estimates and assumptions are included in our Annual Report on Form 10-K for the year ended December 31, 2023 filed with the SEC on March 29, 2024, except for the warrant liability and asset acquisition, both of which were recognized as a result of transactions that closed in the first quarter of 2024. There have been no significant changes to our critical accounting policies during the three months ended March 31, 2024, except for the asset acquisition and warrant liability accounting policies as described in Note 2 - Basis of Presentation and Significant Accounting Policies to our unaudited consolidated financial statements included in this Quarterly Report on Form 10-Q/A.

Warrant Liability

On March 28, 2024, the Company closed a private placement investment with institutional investors in which the investors received (i) 19,946 shares of non-voting convertible preferred stock (the “Series C Preferred Stock”) and (ii) warrants to purchase up to an aggregate of 11,967,526 shares of Avalo’s common stock (or a number of shares of Series C Preferred Stock convertible into the number of shares of common stock the warrant is then exercisable into). Refer to Note 11 - Capital Structure and sub-header “Q1 2024 Financing” for more information regarding the warrants.

The closing stock price of Avalo’s common stock on March 28, 2024, which was the date the transaction closed, as well as the last trading day of the first quarter of 2024, was the main driver of the fair value of the warrant liability. Future increases or decreases to the stock price at each reporting period will drive increases or decreases, respectively, to the fair value of the warrant liability. The expected term was estimated based on when the Company expects the Dosing Date, as defined in Note 11, to occur. If the Dosing Date occurs earlier or later than expected, then the expected term will decrease or increase, respectively, which may decrease or increase, respectively, the value of the warrant liability. Expected volatility is based on a blend between the Company’s historical volatility and the volatility of comparable peer companies. The risk-free interest rate was based on the implied yield available on U.S. treasury securities with a maturity equivalent to the expected term. The warrant liability was classified as a Level 3 instrument as its value was based on unobservable market inputs.

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	As of March 31, 2024
Common stock price	$	21.75
Expected term (in years)	0.5
Expected volatility	109		%
Risk-free rate	5.35		%
Exercise price	$	5.796933
Dividend yield rate	—		%

The initial measurement of the warrant liability of $194.9 million exceeded the proceeds received from the private placement investment of $115.6 million, which resulted in a $79.3 million loss recognized in other expense, net. Subsequently, the warrants are carried at fair value with changes in fair value recognized in the Company’s unaudited consolidated statements of operations and comprehensive loss until either exercised or expired.

Asset Acquisition

The Company evaluates acquisitions of assets and other similar transactions to assess whether or not the transaction should be accounted for as a business combination or asset acquisition by first applying a screen test to determine if substantially all of the fair value of the gross assets acquired is concentrated in a single identifiable asset or group of similar identifiable assets. If the screen is met, the transaction is accounted for as an asset acquisition. If the screen is not met, further determination is required as to whether or not the Company has acquired inputs and processes that have the ability to create outputs which would meet the definition of a business. Significant judgment is required in the application of the screen test to determine whether an acquisition is a business combination or an acquisition of assets.

In the first quarter of 2024, we acquired AVTX-009, a Phase 2 ready anti-IL-1β mAb, through a merger with AlmataBio, Inc. and its wholly owned subsidiary, resulting in us acquiring $27.5 million of IPR&D. The fair value of the IPR&D, substantially all of which is related to AVTX-009, was immediately recognized as acquired IPR&D expense as there is no alternative future use.

Off-Balance Sheet Arrangements

We do not have any off-balance sheet arrangements, as defined by applicable SEC rules and regulations.

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Item 3. Quantitative and Qualitative Disclosures About Market Risk.

As a smaller reporting company, we are not required to provide the information required by this Item.

Item 4. Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

As required by Rule 13a-15(b) and Rule 15d-15(b) of the Securities Exchange Act of 1934, as amended, or the Exchange Act, our management, including our principal executive officer and our principal financial officer, conducted an evaluation as of the end of the period covered by this Quarterly Report on Form 10-Q/A of the effectiveness of the design and operation of our disclosure controls and procedures. In designing and evaluating our disclosure controls and procedures, our management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. Based on that evaluation, our principal executive officer and principal financial officer concluded that our disclosure controls and procedures were effective at the reasonable assurance level as of the end of the period covered by this Quarterly Report on Form 10-Q/A.

Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by us in the reports we file or submit under the Exchange Act is accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting identified in management’s evaluation pursuant to Rules 13a-15(d) or 15d-15(d) of the Exchange Act during the period covered by this Quarterly Report on Form 10-Q/A that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II – OTHER INFORMATION

Item 1. Legal Proceedings.

The information set forth in Note 13 - Commitments and Contingencies, under the heading “Litigation” to our Unaudited Condensed Financial Statements, included in Part I, Item 1 of this Quarterly Report on Form 10-Q/A, is incorporated herein by reference.

Item 1A. Risk Factors.

In addition to the other information set forth in this Quarterly Report on Form 10-Q/A, you should carefully consider the factors discussed in Part I, “Item 1A. Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2023, filed with the SEC on March 29, 2024 (the “2023 10-K”), which could materially affect our business, financial condition, or future results. Our risk factors as of the date of the Original Form 10-Q have not changed materially from those described in the Form 10-K referenced above. The risks described in the Form 10-K referenced above are not the only risks facing our Company. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial may also materially adversely affect our business, financial condition, or future results of operations and the trading price of our common stock.

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Item 6. Exhibits.


Exhibit Number						Description of Exhibit

2.1*						Agreement and Plan of Merger and Reorganization, dated March 27, 2024, by and among Avalo Therapeutics, Inc., Project Athens Merger Sub, Inc., Second Project Athens Merger Sub, LLC, and AlmataBio, Inc. (incorporated by reference to Exhibit 2.1 to the Form 8-K filed on March 28, 2024).

3.1						Certificate of Designation for Avalo Therapeutics, Inc.’s Series C Preferred Stock filed with the Secretary of State of Delaware on March 27, 2024 (incorporated by reference to Exhibit 3.1 to the Form 8-K filed on March 28, 2024).

3.2						Certificate of Designation for Avalo Therapeutics, Inc.’s Series D Preferred Stock filed with the Secretary of State of Delaware on March 27, 2024 (incorporated by reference to Exhibit 3.2 to the Form 8-K filed on March 28, 2024).

3.3						Certificate of Designation for Avalo Therapeutics, Inc.’s Series E Preferred Stock filed with the Secretary of State of Delaware on March 27, 2024 (incorporated by reference to Exhibit 3.3 to the Form 8-K filed on March 28, 2024).

3.4						Fifth Amended and Restated Bylaws of Avalo Therapeutics, Inc. (incorporated by reference to Exhibit 3.2 to the Form 10-K filed on March 29, 2024).

4.1*						Form of Warrant (incorporated by reference to Exhibit 4.1 to the Form 8-K filed on March 28, 2024).

10.1#						Asset Purchase Agreement, dated December 6, 2023, by and among AlmataBio, Inc., Leap Therapeutics, Inc., and Flame Biosciences LLC . (incorporated by reference to Exhibit 10.1 to the Form 10-Q filed on May 13, 2024).

10.2#						License Agreement by, dated November 25, 2019, by and between Flame Biosciences LLC and Eli Lilly and Company (incorporated by reference to Exhibit 10.2 to t he Form 10-Q filed on May 13, 2024).

10.3#						First Amendment to License Agreement, dated February 2, 2021, by and between Flame Biosciences LLC and Eli Lilly and Company (incorporated by reference to Exhibit 10.3 to the Form 10-Q filed on May 13, 2024).

10.4*						Securities Purchase Agreement, dated March 27, 2024, by and among Avalo Therapeutics, Inc. and the investors signatory thereto (incorporated by reference to Exhibit 10.1 to the Form 8-K filed on March 28, 2024).

10.5						Registration Rights Agreement, dated March 27, 2024, by and among Avalo Therapeutics, Inc. and the investors signatory thereto (incorporated by reference to Exhibit 10.2 to the Form 8-K filed on March 28, 2024).

31.1+						Certification of Principal Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

31.2+						Certification of Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

32.1†						Certification of Principal Executive Officer and Principal Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

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101						Interactive data files pursuant to Rule 405 of Regulation S-T: (i) Condensed Consolidated Balance Sheets as of March 31, 2024 (Unaudited) and December 31, 2023; (ii) Condensed Consolidated Statements of Operations (Unaudited) for the Three Months Ended March 31, 2024 and 2023; (iii) Condensed Consolidated Statements of Cash Flows (Unaudited) for the Three Months Ended March 31, 2024 and 2023; (iv) Condensed Consolidated Statements of Preferred Stock and Changes in Stockholders’ (Deficit) Equity (Unaudited) for the Three Months Ended March 31, 2024 and 2023; and (v) Notes to Unaudited Financial Statements.

104						Cover Page Interactive Data File, formatted in XBRL (included in Exhibit 101).

*Certain exhibits and schedules to this exhibit have been omitted pursuant to Item 601(a)(5) of Regulation S-K. The Company hereby undertakes to furnish supplemental copies of any of the omitted exhibits or schedules upon request by the U.S. Securities and Exchange Commission.

# Certain confidential portions to this exhibit have been omitted from this filing pursuant to Item 601(b)(2) of Regulation S-K. The Company will furnish copies of the unredacted exhibit to the SEC upon request.

+ Filed herewith.

† This certification is being furnished solely to accompany this Quarterly Report on Form 10-Q/A pursuant to 18 U.S.C. Section 1350, and is not being filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and is not to be incorporated by reference into any filing of the registrant, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

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SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

									Avalo Therapeutics, Inc.

Date: July 11, 2024									/s/ Christopher Sullivan
									Christopher Sullivan
									Chief Financial Officer
									(on behalf of the registrant and as the registrant’s principal financial officer)

Exhibit 31.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Garry Neil, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q/A of Avalo Therapeutics, Inc. (the “registrant”);

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.


Date: July 11, 2024			/s/ Garry Neil, M.D.
			Garry Neil, M.D. Chief Executive Officer (Registrant’s Principal Executive Officer)

Exhibit 31.2

CERTIFICATION PRINCIPAL FINANCIAL OFFICER

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Christopher Sullivan, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q/A of Avalo Therapeutics, Inc. (the “registrant”);

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: July 11, 2024			/s/ Christopher Sullivan
			Christopher Sullivan Chief Financial Officer (Registrant’s Principal Financial Officer)

Exhibit 32.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER
AND PRINCIPAL FINANCIAL OFFICER

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 of Avalo Therapeutics, Inc. (the “Registrant”) on Form 10-Q/A for the period ended March 31, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Garry Neil, Chief Executive Officer (principal executive officer) of the Registrant, and I, Christopher Sullivan, Chief Financial Officer (principal financial officer) of the Registrant, each hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2.The information contained in the Report fairly presents, in all material respects, the financial condition at the end of the period covered by the Report and the results of operations of the Registrant for the periods covered by the Report.


Date: July 11, 2024	By:	/s/ Garry Neil, M.D.
	Name:	Garry Neil, M.D.
	Title:	Chief Executive Officer (Registrant’s Principal Executive Officer)

Date: July 11, 2024	By:	/s/ Christopher Sullivan
	Name:	Christopher Sullivan
	Title:	Chief Financial Officer (Registrant’s Principal Financial Officer)

The foregoing certifications are not deemed filed with the Securities and Exchange Commission for purposes of section 18 of the Securities Exchange Act of 1934, as amended (Exchange Act), and are not to be incorporated by reference into any filing of Avalo Therapeutics, Inc. under the Securities Act of 1933, as amended, or the Exchange Act, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

Cover - shares	3 Months Ended
Cover - shares	Mar. 31, 2024	May 08, 2024
Cover [Abstract]
Document Type	10-Q/A
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
Document Transition Report	false
Entity File Number	001-37590
Entity Registrant Name	AVALO THERAPEUTICS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	45-0705648
Entity Address, Address Line One	540 Gaither Road, Suite 400
Entity Address, City or Town	Rockville
Entity Address, State or Province	MD
Entity Address, Postal Zip Code	20850
City Area Code	410
Local Phone Number	522-8707
Title of 12(b) Security	Common Stock, $0.001 par value
Trading Symbol	AVTX
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		1,034,130
Entity Central Index Key	0001534120
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Amendment Flag	false

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 110,177	$ 7,415
Other receivables	35	136
Prepaid expenses and other current assets	997	843
Restricted cash, current portion	4	1
Total current assets	111,213	8,395
Property and equipment, net	1,882	1,965
Goodwill	10,502	10,502
Restricted cash, net of current portion	131	131
Total assets	123,728	20,993
Current liabilities:
Accounts payable	916	446
Accrued expenses and other current liabilities	7,383	4,172
Warrant liability	194,901	0
Contingent consideration	12,500	0
Total current liabilities	215,700	4,618
Royalty obligation	2,000	2,000
Deferred tax liability, net	162	155
Derivative liability	5,670	5,550
Other long-term liabilities	1,281	1,366
Total liabilities	224,813	13,689
Mezzanine equity:
Temporary equity, values issued	11,457	0
Stockholders’ (deficit) equity:
Common stock—$0.001 par value; 200,000,000 shares authorized at March 31, 2024 and December 31, 2023; 1,034,130 and 801,746 shares issued and outstanding at March 31, 2024 and December 31, 2023, respectively	1	1
Additional paid-in capital	343,881	342,437
Accumulated deficit	(456,424)	(335,134)
Total stockholders’ (deficit) equity	(112,542)	7,304
Total liabilities, mezzanine equity and stockholders’ (deficit) equity	123,728	20,993
Series C Preferred Stock
Mezzanine equity:
Temporary equity, values issued	11,457	0
Series D Preferred Stock
Mezzanine equity:
Temporary equity, values issued	0	0
Series E Preferred Stock
Mezzanine equity:
Temporary equity, values issued	$ 0	$ 0

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2024	Dec. 31, 2023
Temporary equity, par value per share (in dollars per share)	$ 0.001
Temporary equity, shares authorized (in shares)	5,000,000
Temporary equity, shares outstanding (in shares)	22,360	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	1,034,130	801,746
Common stock, shares outstanding (in shares)	1,034,130	801,746
Series C Preferred Stock
Temporary equity, par value per share (in dollars per share)	$ 0.001	$ 0.001
Temporary equity, shares authorized (in shares)	34,326	0
Temporary equity, shares issued (in shares)	22,358	0
Temporary equity, shares outstanding (in shares)	22,358	0
Series D Preferred Stock
Temporary equity, par value per share (in dollars per share)	$ 0.001	$ 0.001
Temporary equity, shares authorized (in shares)	1	0
Temporary equity, shares issued (in shares)	1	0
Temporary equity, shares outstanding (in shares)	1	0
Series E Preferred Stock
Temporary equity, par value per share (in dollars per share)	$ 0.001	$ 0.001
Temporary equity, shares authorized (in shares)	1	0
Temporary equity, shares issued (in shares)	1	0
Temporary equity, shares outstanding (in shares)	1	0

Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($)
$ in Thousands

3 Months Ended

Mar. 31, 2024

Mar. 31, 2023

Revenues:

Total revenues, net

$ 0

$ 475

Operating expenses:

Cost of product sales

(80)

551

Research and development

2,116

6,008

Acquired in-process research and development

27,538

General and administrative

3,193

2,708

Total operating expenses

32,767

9,267

Total operating income (loss)

(32,767)

(8,792)

Other expense:

Excess of warrant fair value over private placement proceeds

(79,276)

Private placement transaction costs

(9,220)

Change in fair value of derivative liability

(120)

(180)

Interest income, net

100

(949)

Other expense, net

(26)

Total other expense, net

(88,516)

(1,155)

Loss before taxes

(121,283)

(9,947)

Income tax expense

Net loss

(121,290)

(9,955)

Comprehensive loss

$ (121,290)

$ (9,955)

Net loss per share of common stock, basic (in dollars per share)

^[1]

$ (141)

$ (204)

Net loss per share of common stock, diluted (in dollars per share)

^[1]

$ (141)

$ (204)

Product revenue, net

Revenues:

Total revenues, net

$ 0

$ 475

[1]	Amounts for prior periods presented have been retroactively adjusted to reflect the 1-for-240 reverse stock split effected on December 28, 2023. See Note 1 for details.

Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) (Parenthetical)	Dec. 28, 2023
Income Statement [Abstract]
Stock split, conversion ratio	0.0042

Condensed Consolidated Statements of Preferred Stock and Changes in Stockholders’ (Deficit) Equity (Unaudited) - USD ($)
$ in Thousands

Total

Series C Preferred Stock

AlmataBio Transaction

Series C Preferred Stock

Private Placement

Series D Preferred Stock

Private Placement

Series E Preferred Stock

Private Placement

Common stock

Additional paid-in capital

Accumulated deficit

Balance at the beginning (in shares) at Dec. 31, 2022

39,294

Balance at the beginning at Dec. 31, 2022

$ (10,915)

$ 0

^[1]

$ 292,909

^[1]

$ (303,824)

Increase (Decrease) in Stockholders' Equity [Roll Forward]

Issuance of shares of common stock and warrants in underwritten public offering, net (in shares)

15,709

Issuance of shares of common stock and warrants in underwritten public offering, net

13,748

^[1]

Stock-based compensation

855

^[1]

Net loss

(9,955)

Balance at the end (in shares) at Mar. 31, 2023

55,003

Balance at the end at Mar. 31, 2023

$ (6,267)

$ 0

^[1]

307,512

^[1]

(313,779)

Balance at the beginning (in shares) at Dec. 31, 2023

Balance at the beginning at Dec. 31, 2023

$ 0

Increase (Decrease) in Temporary Equity [Roll Forward]

Issuance of stock

2,412

19,946

Issuance of Series C Preferred Stock pursuant to Almata Transaction

$ 11,457

Balance at the end at Mar. 31, 2024

$ 11,457

$ 0

Balance at the end (in shares) at Mar. 31, 2024

22,360

22,358

Balance at the beginning (in shares) at Dec. 31, 2023

801,746

Balance at the beginning at Dec. 31, 2023

$ 7,304

$ 1

342,437

(335,134)

Increase (Decrease) in Stockholders' Equity [Roll Forward]

Impact of reverse split fractional share round-up (in shares)

60,779

Issuance of common stock and preferred stock as part of Almata Transaction (in shares)

171,605

Issuance of common stock pursuant to Almata Transaction

815

Stock-based compensation

629

Net loss

$ (121,290)

(121,290)

Balance at the end (in shares) at Mar. 31, 2024

1,034,130

Balance at the end at Mar. 31, 2024

$ (112,542)

$ 1

$ 343,881

$ (456,424)

[1]	Amounts for prior periods presented have been retroactively adjusted to reflect the 1-for-240 reverse stock split effected on December 28, 2023. See Note 1 for details.

Condensed Consolidated Statements of Cash Flows (Unaudited) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)
Operating activities
Net loss	$ (121,290)	$ (9,955)
Adjustments to reconcile net loss used in operating activities:
Depreciation and amortization	34	33
Stock-based compensation	629	855
Acquired in-process research and development	27,538	0
Excess of warrant fair value over private placement proceeds	79,276	0
Transaction costs paid pursuant to private placement	7,013	0
Transaction costs payable upon exercise of warrants issued in private placement	1,734	0
Change in fair value of derivative liability	120	180
Accretion of debt discount	0	350
Deferred taxes	7	8
Changes in assets and liabilities:
Other receivables	101	1,062
Inventory, net	0	1
Prepaid expenses and other assets	(154)	(337)
Lease incentive	158	0
Accounts payable	470	2,683
Deferred revenue	0	22
Accrued expenses and other liabilities	(1,652)	(4,941)
Lease liability, net	(186)	(13)
Net cash used in operating activities	(6,202)	(10,052)
Investing activities
Cash assumed from Almata Transaction	356	0
Leasehold improvements	0	(158)
Disposal of property and equipment	0	25
Net cash provided by (used in) investing activities	356	(133)
Financing activities
Proceeds from private placement investment, gross	115,625	0
Transaction costs paid pursuant to private placement	(7,013)	0
Proceeds from issuance of common stock and pre-funded warrants in underwritten public offering, net	0	13,748
Net cash provided by financing activities	108,612	13,748
Increase in cash, cash equivalents and restricted cash	102,766	3,563
Cash, cash equivalents, and restricted cash at beginning of period	7,546	13,318
Cash, cash equivalents, and restricted cash at end of period	110,312	16,881
Supplemental disclosures of cash flow information
Cash paid for interest	0	704
Supplemental disclosures of non-cash activities
Issuance of common stock and Series C Preferred Stock pursuant to Almata Transaction	12,727	0
Cash and cash equivalents	110,177	16,687
Restricted cash, current	4	63
Restricted cash, non-current	131	131
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Total	$ 110,312	$ 16,881

Condensed Consolidated Statements of Preferred Stock and Changes in Stockholders’ (Deficit) Equity (Unaudited) (Parenthetical)	Dec. 28, 2023
Statement of Stockholders' Equity [Abstract]
Stock split, conversion ratio	0.0042

Business	3 Months Ended
Business	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business	Business Avalo Therapeutics, Inc. (the “Company,” “Avalo” or “we”) is a clinical stage biotechnology company focused on the treatment of immune dysregulation. Avalo’s lead asset is AVTX-009, an anti-IL-1β monoclonal antibody (“mAb”), targeting inflammatory diseases. Avalo’s pipeline also includes quisovalimab (anti-LIGHT mAb) and AVTX-008 (BTLA agonist fusion protein). Avalo was incorporated in Delaware and commenced operation in 2011, and completed its initial public offering in October 2015. On March 27, 2024, the Company acquired AVTX-009, a Phase 2-ready anti-IL-1β mAb, through a merger with AlmataBio, Inc. (“AlmataBio”) with and into its wholly owned subsidiary (the “Almata Transaction”). Additionally, on March 28, 2024, the Company closed a private placement investment for up to $185 million in gross proceeds, including initial upfront gross investment of $115.6 million. The upfront net proceeds were approximately $108.1 million after deducting transaction costs. The Company could receive up to an additional $69.4 million of gross proceeds upon the exercise of warrants issued in the financing. Liquidity Since inception, we have incurred significant operating and cash losses from operations. We have primarily funded our operations to date through sales of equity securities, out-licensing transactions and sales of assets. For the three months ended March 31, 2024, Avalo generated a net loss of $121.3 million and negative cash flows from operations of $6.2 million. As of March 31, 2024, Avalo had $110.2 million in cash and cash equivalents. In March 2024, the Company closed a private placement investment for up to $185 million in gross proceeds, including an initial upfront gross investment of $115.6 million. Net proceeds were $108.1 million after deducting transaction costs. The Company could receive up to an additional $69.4 million of gross proceeds upon the exercise of warrants issued in the financing. Based on our current operating plans, we expect that our existing cash and cash equivalents are sufficient to fund operations for at least twelve months from the filing date of the Original Form 10-Q and we expect current cash on hand to fund operations into 2027. The Company closely monitors its cash and cash equivalents and seeks to balance the level of cash and cash equivalents with our projected needs to allow us to withstand periods of uncertainty relative to the availability of funding on favorable terms. We may need to satisfy our future cash needs through sales of equity securities under the Company’s ATM program or otherwise, out-licensing transactions, strategic alliances/collaborations, sale of programs, and/or mergers and acquisitions. There can be no assurance that any financing or business development initiatives can be realized by the Company, or if realized, what the terms may be. Further, if the Company raises additional funds through collaborations, strategic alliances or licensing arrangements with third parties, the Company might have to relinquish valuable rights to its technologies, future revenue streams, research programs or product candidates. To the extent that we raise capital through the sale of equity, the ownership interest of our existing stockholders will be diluted, and the terms may include liquidation or other preferences that adversely affect the rights of our stockholders.

Basis of Presentation and Significant Accounting Policies	3 Months Ended
	Mar. 31, 2024
Accounting Policies [Abstract]
Basis of Presentation and Significant Accounting Policies	Basis of Presentation and Significant Accounting Policies Basis of Presentation The Company’s unaudited condensed consolidated 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 the authoritative GAAP as found in the Accounting Standards Codification (“ASC”) and Accounting Standards Updates (“ASU”) of the Financial Accounting Standards Board (“FASB”). In the opinion of management, the accompanying unaudited condensed consolidated financial statements include all adjustments, consisting of normal recurring adjustments, which are necessary to present fairly the Company’s financial position, results of operations, and cash flows. The condensed consolidated balance sheet at December 31, 2023 has been derived from audited financial statements at that date. The interim results of operations are not necessarily indicative of the results that may occur for the full fiscal year. Certain information and footnote disclosure normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to instructions, rules, and regulations prescribed by the United States Securities and Exchange Commission (“SEC”). The Company believes that the disclosures provided herein are adequate to make the information presented not misleading when these unaudited condensed consolidated financial statements are read in conjunction with the December 31, 2023 audited consolidated financial statements. On December 28, 2023, Avalo effected a 1-for-240 reverse stock split of the outstanding shares of the Company’s common stock and began trading on a split-adjusted basis on December 29, 2023. The Company retroactively applied the reverse stock split to common share and per share amounts for periods prior to December 28, 2023, including the unaudited consolidated financial statements for the quarter ended March 31, 2023. Additionally, pursuant to their terms, a proportionate adjustment was made to the per share exercise price and number of shares issuable under all of the Company’s outstanding options and warrants, and the number of shares authorized for issuance pursuant to the Company’s equity incentive plans have been reduced proportionately. Avalo retroactively applied such adjustments in the notes to consolidated financial statements for periods presented prior to December 28, 2023, including the quarter ended March 31, 2023. The reverse stock split did not reduce the number of authorized shares of common and preferred stock and did not alter the par value. Unless otherwise indicated, all amounts in the following tables are in thousands except share and per share amounts. Significant Accounting Policies During the three months ended March 31, 2024, there were no significant changes to the Company’s summary of significant accounting policies contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, as filed with the SEC on March 29, 2024, except for the policies related to asset acquisitions and warrant liability as described below. Asset Acquisitions The Company evaluates acquisitions of assets and other similar transactions to assess whether the transaction should be accounted for as a business combination or asset acquisition by first applying a screen test to determine if substantially all of the fair value of the gross assets acquired is concentrated in a single identifiable asset or group of similar identifiable assets. If the screen test is met, the transaction is accounted for as an asset acquisition. If the screen test is not met, further determination is required as to whether the Company has acquired inputs and processes that have the ability to create outputs which would meet the definition of a business. Significant judgment is required in the application of the screen test to determine whether an acquisition is a business combination or an acquisition of assets. Warrant Liability The Company accounts for warrants as either equity-classified or liability-classified instruments based on an assessment of the warrant’s specific terms and applicable authoritative guidance in ASC 480, Distinguishing Liabilities from Equity and ASC 815, Derivatives and Hedging. Warrants classified as equity are recorded at fair value as of the date of issuance on the Company’s consolidated balance sheets and no further adjustments to their valuation are made. Warrants classified as derivative liabilities that require separate accounting as liabilities are recorded on the Company’s consolidated balance sheets at their fair value on the date of issuance and are revalued on each subsequent balance sheet date until such instruments are exercised or expire, with any changes in the fair value between reporting periods recorded on the consolidated statement of operations. The assessment of whether the warrants are accounted for as equity-classified or liability-classified instruments is re-evaluated on a periodic basis.

Asset Acquisition

3 Months Ended

Mar. 31, 2024

Business Combination and Asset Acquisition [Abstract]

Asset Acquisition

Almata Transaction

Below is a summary of the total consideration, assets acquired and the liabilities assumed in connection with the Almata Transaction (in thousands):


	Three Months Ended March 31, 2024
Stock consideration1	$	12,272
Milestone payment due upon close of private placement investment2	7,500
Milestone payment due upon first patient dosed in a Phase 2 trial2	5,000
Transaction costs	2,402
Total GAAP Purchase Price at Close	$	27,174

Acquired IPR&D	$	27,538
Cash	356
Accrued expenses and other current liabilities	(720)
Total net assets acquired and liabilities assumed	$	27,174

Revenue	3 Months Ended
Revenue	Mar. 31, 2024
Revenue from Contract with Customer [Abstract]
Revenue	Revenue The Company’s license and supply agreement for Millipred®, an oral prednisolone indicated across a wide variety of inflammatory conditions, ended on September 30, 2023, and therefore there was no net product revenues for the three months ended March 31, 2024. Avalo considered Millipred® a non-core asset. Historically, the Company sold Millipred® in the United States primarily through wholesale distributors, who accounted for substantially all of the Company’s net product revenues and trade receivables. For the three months ended March 31, 2023, the Company recognized net product revenue of $0.5 million. The Company will continue to monitor estimates for commercial liabilities, such as sales returns. As additional information becomes available, the Company could recognize expense (or a benefit) for differences between actuals or updated estimates to the reserves previously recognized. Pursuant the Millipred® license and supply agreement, Avalo was required to pay the supplier fifty percent of the net profit of the Millipred® product following each calendar quarter, subject to a $0.5 million quarterly minimum payment dependent on Avalo reaching certain net profit amounts as stipulated in the agreement. The profit share commenced on July 1, 2021 and ended on September 30, 2023. Within twenty-five months of September 30, 2023, the net profit share is subject to a reconciliation process where estimated deductions to arrive at net profit will be trued-up to actuals and could result in Avalo owing additional amounts to the supplier or vice versa, which would be recognized in cost of product sales. Aytu BioScience, Inc. (“Aytu”), to which the Company sold its rights, title, and interests in assets relating to certain commercialized products in 2019 (the “Aytu Transaction”), managed Millipred® commercial operations until August 31, 2021 pursuant to transition service agreements, which included managing the third-party logistics provider. As a result, Aytu collected cash on behalf of Avalo for revenue generated by sales of Millipred® from the second quarter of 2020 through the third quarter of 2021. The transition services agreement allows Aytu to withhold up to $1.0 million until December of 2024. In the second quarter of 2022, Avalo fully reserved the receivable as a result of Aytu’s conclusion within its Quarterly Report on Form 10-Q for the quarter ended June 30, 2022 that substantial doubt existed with respect to its ability to continue as a going concern within one year after the date those financial statements were issued. As of March 31, 2024, the total receivable balance was approximately $0.6 million and remains fully reserved as of March 31, 2024. We will continue to reassess its collectability each reporting period.

Net Loss Per Share

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Net Loss Per Share


	Three Months Ended March 31, 2024
	Common stock

Net loss	$	(121,290)
Weighted average shares	859,381
Basic and diluted net loss per share	$	(141)


	Three Months Ended March 31, 2023
	Common stock

Net loss	$	(9,955)
Weighted average shares	48,845
Basic and diluted net loss per share	$	(204)


	Three Months Ended
	March 31,
	2024	2023
Stock options	7,543	7,558
Warrants on common stock1	11,969,063	17,254
Series C Preferred Stock (as-converted to common stock)2	22,357,897	—

Fair Value Measurements

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Fair Value Measurements

•Level 1—inputs to the valuation methodology are quoted prices (unadjusted) for an identical asset or liability in an active market.

•Level 3—inputs to the valuation methodology are unobservable and significant to the fair value measurement of the asset or liability.


	March 31, 2024
	Fair Value Measurements Using
	Quoted prices in active markets for identical assets		Significant other observable inputs		Significant unobservable inputs
	(Level 1)		(Level 2)		(Level 3)
Assets
Investments in money market funds*	$	104,776	$	—	$	—
Liabilities
Derivative liability	$	—	$	—	$	5,670
Warrant liability	$	—	$	—	194,901


	December 31, 2023
	Fair Value Measurements Using
	Quoted prices in active markets for identical assets		Significant other observable inputs		Significant unobservable inputs
	(Level 1)		(Level 2)		(Level 3)
Assets
Investments in money market funds*	$	7,077	$	—	$	—
Liabilities
Derivative liability	$	—	$	—	$	5,550

*Investments in money market funds are reflected in cash and cash equivalents on the accompanying unaudited condensed consolidated balance sheets.

Level 3 Valuation

The table presented below is a summary of changes in the fair value of the Company’s Level 3 valuations for the warrant liability and derivative liability for the three months ended March 31, 2024:


	Warrant liability		Derivative liability		Total
Balance at December 31, 2023	$	—	$	5,550	$	5,550
Initial valuation of warrant liability	194,901		—		194,901
Change in fair value	—		120		120
Balance at March 31, 2024	$	194,901	$	5,670	$	200,571


	Warrant liability		Derivative liability		Total
Balance at December 31, 2022	$	—	$	4,830	$	4,830
Initial valuation of warrant liability	—		—		—
Change in fair value	—		180		180
Balance at March 31, 2023	$	—	$	5,010	$	5,010

Warrant liability


	As of March 31, 2024
Common stock price	$	21.75
Expected term (in years)	0.5
Expected volatility	109		%
Risk-free rate	5.35		%
Exercise price	$	5.796933
Dividend yield rate	—		%

Derivative liability

Leases

3 Months Ended

Mar. 31, 2024

Leases [Abstract]

Leases

The weighted average remaining term of the operating leases at March 31, 2024 was 4.4 years.

Supplemental balance sheet information related to the leased properties include (in thousands):


	As of
	March 31, 2024		December 31, 2023
Property and equipment, net	$	1,280	$	1,329

Accrued expenses and other current liabilities	$	545	$	537
Other long-term liabilities	1,281		1,366
Total operating lease liabilities	$	1,826	$	1,903

The components of lease expense for the three months ended March 31, 2024 and 2023 were as follows (in thousands):


	Three Months Ended March 31,
	2024		2023
Operating lease cost*	$	108	$	120

*Includes short-term leases, which are immaterial.

The following table shows a maturity analysis of the operating lease liabilities as of March 31, 2024 (in thousands):



	Undiscounted Cash Flows
April 1, 2024 through December 31, 2024	$	407
2025	553
2026	563
2027	259
2028	201
2029	207
Thereafter	17
Total lease payments	$	2,207
Less implied interest	(381)
Total	$	1,826

Accrued Expenses and Other Current Liabilities

3 Months Ended

Mar. 31, 2024

Accrued Liabilities and Other Liabilities [Abstract]

Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities as of March 31, 2024 and December 31, 2023 consisted of the following (in thousands):


	As of
	March 31, 2024		December 31, 2023
Research and development	$	329	$	352
Compensation and benefits	752		580
General and administrative (including asset acquisition related transaction costs)	1,934		830
Private placement investment transaction costs	2,034		—

Commercial operations	1,789		1,873

Lease liability, current	545		537

Total accrued expenses and other current liabilities	$	7,383	$	4,172

Notes Payable	3 Months Ended
Notes Payable	Mar. 31, 2024
Debt Disclosure [Abstract]
Notes Payable	Notes Payable On June 4, 2021, the Company entered into a $35.0 million venture loan and security agreement (the “Loan Agreement”) with Horizon Technology Finance Corporation (“Horizon”) and Powerscourt Investments XXV, LP (“Powerscourt”, and together with Horizon, the “Lenders”). Between June and September of 2021, the Company borrowed the full $35.0 million (the “Note”) available under the Loan Agreement. In the second quarter of 2022, the Company, as collectively agreed upon with the Lenders, prepaid $15.0 million of principal and accrued interest. In June of 2023, the Company, as collectively agreed upon with the Lenders, prepaid $6.0 million of principal. On September 22, 2023, the Company and the Lenders entered into a Payoff Letter (the “Payoff Letter”), pursuant to which the Company repaid all outstanding principal, inclusive of the final payment fee, and interest under the Loan Agreement in the aggregate amount of $14.3 million. As a result of the payment, all obligations of the parties under the Loan Agreement were deemed satisfied and terminated. On June 4, 2021, pursuant to the Loan Agreement, the Company issued warrants to the Lenders to purchase 148 shares of the Company’s common stock with an exercise price of $7,488 per share (the “Warrants”). The Warrants are exercisable for ten years from the date of issuance. Pursuant to the Payoff Letter, Avalo’s obligations under the Warrants shall survive pursuant to the original terms at issuance. The Warrants, which met equity classification, were recognized as a component of permanent stockholders’ (deficit) equity within additional paid-in-capital and were recorded at the issuance date using a relative fair value allocation method. The Company recognized debt issuance costs and the amount allocated to the warrants as a debt discount on the date of issuance and amortized these costs to interest expense using the effective interest method over the original term of the loan. As a result of the payoff in the third quarter of 2023, the Company accelerated the remaining $0.9 million amortization of the debt discount, which was recognized as interest expense in the third quarter of 2023.

Capital Structure

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Capital Structure

Almata Transaction

Q1 2024 Financing

On March 28, 2024, the Company closed a private placement investment with institutional investors in which the investors received (i) 19,946 shares of non-voting convertible preferred stock, the Series C Preferred Stock, and (ii) warrants to purchase up to an aggregate of 11,967,526 shares of Avalo’s common stock (or a number of shares of Series C Preferred Stock convertible into the number of shares of common stock the warrant is then exercisable into), resulting in upfront gross proceeds of $115.6 million. Net proceeds were $108.1 million after deducting transaction costs. The Company could receive up to an additional $69.4 million of gross proceeds upon the exercise of the warrants.

Warrants on common stock or Series C Preferred Stock issued in Q1 2024 Financing

No warrants were exercised for the quarterly period ended on March 31, 2024.

Series C Preferred Stock issued in the Almata Transaction and Q1 2024 Financing

As of March 31, 2024, no Series C Preferred Stock were converted to common stock.

Series D and Series E Preferred Stock issued in the Q1 2024 Financing

Common Stock Warrants

At March 31, 2024, the following common stock warrants were outstanding:


Number of common shares	Exercise price			Expiration
underlying warrants	per share			date
1,389	$	36,000		June 2024
148	$	7,488		June 2031
11,967,526	$	5.80	(1)	(1)
11,969,063

Stock-Based Compensation

3 Months Ended

Mar. 31, 2024

Share-Based Payment Arrangement [Abstract]

Stock-Based Compensation

2016 Equity Incentive Plan


	Three Months Ended March 31,
	2024		2023
Research and development	$	269	$	326
General and administrative	360		529
Total stock-based compensation	$	629	$	855

Stock options with service-based vesting conditions


	Options Outstanding
	Number of shares	Weighted average exercise price per share		Weighted average grant date fair value per share		Weighted average remaining contractual term (in years)
Balance at December 31, 2023	7,211	$	3,192	$	1,930	8.3
Granted	—	$	—	$	—


Forfeited	(13)	$	660	$	473
Expired	(3)	$	11,232	$	6,444
Balance at March 31, 2024	7,195	$	3,192	$	1,936	8.0

Exercisable at March 31, 2024	4,058	$	4,791	$	2,803	7.4

Stock-based compensation assumptions

There were no stock options granted in the three months ended March 31, 2024.

Stock options with market-based vesting conditions

Employee Stock Purchase Plan

Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2024
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company recognized minimal income tax expense for the three months ended March 31, 2024 and 2023 due to the significant valuation allowance against the Company’s deferred tax assets and the current and prior period losses.

Commitments and Contingencies	3 Months Ended
Commitments and Contingencies	Mar. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Litigation Litigation - General The Company may become party to various contractual disputes, litigation, and potential claims arising in the ordinary course of business. Reserves are established in connection with such matters when a loss is probable and the amount of such loss can be reasonably estimated. The Company currently does not believe that the resolution of such matters will have a material adverse effect on its financial position or results of operations except as otherwise disclosed in this report. Dispute Notice Settlement On August 14, 2023, the Company received a notice from Apollo AP43 Limited alleging that the Company was in breach of the license agreement between them dated July 29, 2022 by virtue of owing $0.8 million to a service provider under the terms of that license. On January 25, 2024, the Company and Apollo entered into a settlement and release agreement, pursuant to which Avalo agreed to pay Apollo $0.2 million to settle the dispute and Apollo released Avalo from any and all liabilities or claims relating to the dispute that Apollo may have against Avalo from the date of the license agreement through the date of the settlement and release agreement. The Company recognized the $0.2 million settlement within accrued expenses and other current liabilities as of December 2023 and made the $0.2 million settlement payment in the first quarter of 2024. Possible Future Milestone Payments for In-Licensed Compounds General Avalo is a party to license and development agreements with various third parties, which contain future payment obligations such as royalties and milestone payments. The Company recognizes a liability (and related expense) for each milestone if and when such milestone is probable and can be reasonably estimated. As typical in the biotechnology industry, each milestone has unique risks that the Company evaluates when determining the probability of achieving each milestone and the probability of success evolves over time as the programs progress and additional information is obtained. The Company considers numerous factors when evaluating whether a given milestone is probable including (but not limited to) the regulatory pathway, development plan, ability to dedicate sufficient funding to reach a given milestone and the probability of success. AVTX-009 Agreements On March 27, 2024, Avalo obtained the rights to an anti-IL-1β mAb (AVTX-009), including the world-wide exclusive license from Eli Lilly and Company (the “Lilly License Agreement”), pursuant to its acquisition of AlmataBio. AlmataBio had previously purchased the rights, title and interest in the asset from Leap Therapeutics, Inc. (“Leap”) in 2023. Avalo is required to pay up to $70 million based on the achievement of specified development and regulatory milestones. Upon commercialization, the Company is required to pay sales-based milestones aggregating up to $720 million. Additionally, Avalo is required to pay royalties during a country-by-country royalty term equal to a mid-single digit-to-low double digit of Avalo or its sublicensees’ annual net sales. No expense related to these AVTX-009 agreements was recognized in the three months ended March 31, 2024. There has been no cumulative expense recognized as of March 31, 2024 related to the milestones under these AVTX-009 agreements. The Company will continue to monitor the milestones at each reporting period. Refer to the sub-header below entitled “Acquisition Related and Other Contingent Liabilities” for information regarding future development milestones that are payable to the former AlmataBio stockholders. AVTX-002 KKC License Agreement On March 25, 2021, the Company entered into a license agreement with Kyowa Kirin Co., Ltd. (“KKC”) for exclusive worldwide rights to develop, manufacture and commercialize AVTX-002, KKC’s first-in-class fully human anti-LIGHT (TNFSF14) monoclonal antibody for all indications (the “KKC License Agreement”). The KKC License Agreement replaced the Amended and Restated Clinical Development and Option Agreement between the Company and KKC dated May 28, 2020. Under the KKC License Agreement, the Company paid KKC an upfront license fee of $10.0 million, which we recognized within research and development expenses in 2021. The Company is also required to pay KKC up to an aggregate of $112.5 million based on the achievement of specified development and regulatory milestones. Upon commercialization, the Company is required to pay KKC sales-based milestones aggregating up to $75.0 million tied to the achievement of annual net sales targets. Additionally, the Company is required to pay KKC royalties during a country-by-country royalty term equal to a mid-teen percentage of annual net sales. The Company is required to pay KKC a double-digit percentage (less than 30%) of the payments that the Company receives from any sublicensing of its rights under the KKC License Agreement, subject to certain exclusions. Avalo is responsible for the development and commercialization of AVTX-002 in all indications worldwide (other than the option in the KKC License Agreement that, upon exercise by KKC, allows KKC to develop, manufacture and commercialize AVTX-002 in Japan). In addition to the KKC License Agreement, Avalo is subject to additional royalties upon commercialization of up to an amount of less than 10% of net sales. No expense related to the KKC License Agreement was recognized in the three months ended March 31, 2024. There has been no cumulative expense recognized as of March 31, 2024 related to the milestones under the KKC License Agreement. The Company will continue to monitor the milestones at each reporting period. AVTX-008 Sanford Burnham Prebys License Agreement On June 22, 2021, the Company entered into an Exclusive Patent License Agreement with Sanford Burnham Prebys Medical Discovery Institute (the “Sanford Burnham Prebys License Agreement”) under which the Company obtained an exclusive license to a portfolio of issued patents and patent applications covering an immune checkpoint program (AVTX-008). Under the terms of the Sanford Burnham Prebys License Agreement, the Company incurred an upfront license fee of $0.4 million, as well as patent costs of $0.5 million, which we recognized within research and development expenses and within general and administrative expenses, respectively, in 2021. The Company is required to pay Sanford Burnham Prebys up to an aggregate of $24.2 million based on achievement of specified development and regulatory milestones. Upon commercialization, the Company is required to pay Sanford Burnham Prebys sales-based milestone payments aggregating up to $50.0 million tied to annual net sales targets. Additionally, the Company is required to pay Sanford Burnham Prebys royalties during a country-by-country royalty term equal to a low-to-mid single digit percentage of annual net sales. The Company is also required to pay Sanford Burnham Prebys a tiered low-double digit percentage of the payments that Avalo receives from sublicensing of its rights under the Sanford Burnham Prebys License Agreement, subject to certain exclusions. Avalo is fully responsible for the development and commercialization of the program. No material expense related to the Sanford Burnham Prebys License Agreement was recognized in the three months ended March 31, 2024. There has been no cumulative expense recognized as of March 31, 2024 related to the milestones under this license agreement. The Company will continue to monitor the milestones at each reporting period. AVTX-006 Astellas License Agreement The Company has an exclusive license agreement with OSI Pharmaceuticals, LLC, an indirect wholly owned subsidiary of Astellas Pharma, Inc. (“Astellas”), for the worldwide development and commercialization of the novel, second generation mTORC1/2 inhibitor (AVTX-006). Under the terms of the license agreement, there was an upfront license fee of $0.5 million. The Company is required to pay Astellas up to an aggregate of $5.5 million based on the achievement of specified development and regulatory milestones. The Company is also required to pay Astellas a tiered mid-to-high single digit percentage of the payments that Avalo receives from any sublicensing of its rights under the Astellas license agreement, subject to certain exclusions. Upon commercialization, the Company is required to pay Astellas royalties during a country-by-country royalty term equal to a tiered mid-to-high single digit percentage of annual net sales. Avalo is fully responsible for the development and commercialization of the program. No expense related to this license agreement was recognized in the three months ended March 31, 2024. There has been $0.5 million of cumulative expense recognized as of March 31, 2024 related to the milestones under this license agreement. The Company will continue to monitor the remaining milestones at each reporting period. Possible Future Milestone Proceeds for Out-Licensed Compounds AVTX-301 Out-License On May 28, 2021, the Company out-licensed its rights in respect of its non-core asset, AVTX-301, to Alto Neuroscience, Inc. (“Alto”). The Company initially in-licensed the compound from an affiliate of Merck & Co., Inc. in 2013. Under the out-license agreement, the Company received a mid-six digit upfront payment from Alto, which we recognized as license revenue in 2021. The Company is also eligible to receive up to an aggregate of $18.6 million based on the achievement of specified development, regulatory and commercial sales milestones. Additionally, the Company is entitled to a less than single digit percentage royalty based on annual net sales. Alto is fully responsible for the development and commercialization of the program. The Company had not recognized any milestones as of March 31, 2024. AVTX-406 License Assignment On June 9, 2021, the Company assigned its rights, title, interest, and obligations under an in-license covering its non-core asset, AVTX-406, to ES, a wholly owned subsidiary of Armistice, who was a significant stockholder of the Company at the time of the financing and whose chief investment officer, Steven Boyd, and managing director, Keith Maher, served on Avalo’s Board until August 8, 2022. The transaction with ES was approved in accordance with Avalo’s related party transaction policy. Under the assignment agreement, the Company received a low-six digit upfront payment from ES, which we recognized as license revenue in 2021. The Company is also eligible to receive up to an aggregate of $6.0 million based on the achievement of specified development and regulatory milestones. Upon commercialization, the Company is eligible to receive sales-based milestone payments aggregating up to $20.0 million tied to annual net sales targets. ES is fully responsible for the development and commercialization of the program. The Company had not recognized any milestones as of March 31, 2024. AVTX-800 Series Asset Sale On October 27, 2023, the Company sold its rights, title and interests in assets relating to the 800 Series to AUG. Pursuant to the Purchase Agreement with AUG, the Company received an upfront payment of $0.2 million. Additionally, AUG assumed aggregate liabilities of $0.4 million, which included certain liabilities incurred prior to the date of the Purchase Agreement, costs due and payable between the date of the Purchase Agreement and the closing date, and obligations under 800 Series contracts assumed by AUG. Avalo is also entitled to a contingent milestone payment of 20% of certain amounts, if any, granted to AUG upon sale of any priority review voucher related to the 800 Series compounds granted to AUG by the FDA, net of any selling costs, or $15.0 million for each compound (for a potential aggregate of $45.0 million) if the first FDA approval is for any indication other than a Rare Pediatric Disease (as defined in the Purchase Agreement). The Company had not recognized any revenue related to the milestones as of March 31, 2024. Acquisition Related and Other Contingent Liabilities Almata Transaction Possible Future Milestone Payments On March 27, 2024, the Company acquired AVTX-009 through its acquisition of AlmataBio. The Company agreed to an aggregate milestone payment of $7.5 million in cash due upon the closing of the private placement investment (which closed on March 28, 2024), a second aggregate milestone payment of $5.0 million due upon the first patient being dosed in a Phase 2 trial for the indication of hidradenitis suppurative and a third aggregate milestone payment of $15.0 million due upon the first patient being dosed in a Phase 3 trial (regardless of indication). The former Almata stockholders have the option to elect to have the second and third milestone payments be paid in cash, shares of Avalo common stock or a combination thereof. The Company recognized the $7.5 million initial milestone payment as a current liability within contingent consideration as of March 31, 2024 and paid this milestone on April 1, 2024. In addition, as of March 31, 2024, the Company concluded the second milestone payment was probable and therefore recognized the $5.0 million milestone as a current liability within contingent consideration as of March 31, 2024. The Company will continue to monitor the third milestone each reporting period. Aevi Merger Possible Future Milestone Payments In the first quarter of 2020, the Company consummated its merger with Aevi Genomic Medicine Inc. (“Aevi”), in which Avalo acquired the rights to AVTX-002, AVTX-006 and AVTX-007 (the “Merger” or the “Aevi Merger”). A portion of the consideration for the Aevi Merger included two future contingent development milestones worth up to an additional $6.5 million, payable in either shares of Avalo’s common stock or cash, at the election of Avalo. The first milestone was the enrollment of a patient in a Phase 2 study related to AVTX-002 (for treatment of pediatric onset Crohn’s disease), AVTX-006 (for treatment of any indication) or AVTX-007 (for treatment of any indication) prior to February 3, 2022, which would have resulted in a milestone payment of $2.0 million. The Company did not meet the first milestone prior to February 3, 2022. Therefore, no contingent consideration related to this milestone was recognized as of March 31, 2024 and no future contingent consideration will be recognized. The second milestone is the receipt of an NDA approval for either AVTX-006 or AVTX-007 from the FDA on or prior to February 3, 2025. If this milestone is met, the Company is required to make a milestone payment of $4.5 million. The contingent consideration related to the second development milestone will be recognized if and when such milestone is probable and can be reasonably estimated. No contingent consideration related to the second development milestone had been recognized as of March 31, 2024. The Company will continue to monitor the second milestone each reporting period. AVTX-006 Royalty Agreement with Certain Related Parties In July 2019, Aevi entered into a royalty agreement, and liabilities thereunder were assumed by Avalo upon close of the Aevi Merger in February 2020. The royalty agreement provided certain investors, including LeoGroup Private Investment Access, LLC on behalf of Garry Neil, the Company’s Chief Executive Officer and Chairman of the Board, and Mike Cola, the Company’s former Chief Executive Officer (collectively, the “Investors”), a royalty stream, in exchange for a one-time aggregate payment of $2.0 million (the “Royalty Agreement”). Pursuant to the Royalty Agreement, the Investors will be entitled collectively to an aggregate amount equal to a low-single digit percentage of the aggregate net sales of the Company’s second generation mTORC1/2 inhibitor, AVTX-006. At any time beginning three years after the date of the first public launch of AVTX-006, Avalo may exercise, at its sole discretion, a buyout option that terminates any further obligations under the Royalty Agreement in exchange for a payment to the Investors of an aggregate of 75% of the net present value of the royalty payments. A majority of the independent members of the board of directors and the audit committee of Aevi approved the Royalty Agreement. Avalo assumed this Royalty Agreement upon closing of the Aevi Merger and it is recorded as a royalty obligation within the Company's accompanying unaudited condensed consolidated balance sheet as of March 31, 2024 and December 31, 2023. Because there is a significant related party relationship between the Company and the Investors, the Company has treated its obligation to make royalty payments under the Royalty Agreement as an implicit obligation to repay the funds advanced by the Investors. As the Company makes royalty payments in accordance with the Royalty Agreement, it will reduce the liability balance. At the time that such royalty payments become probable and estimable, and if such amounts exceed the liability balance, the Company will impute interest accordingly on a prospective basis based on such estimates, which will result in a corresponding increase in the liability balance. Karbinal Royalty Make-Whole Provision In 2018, in connection with the acquisition of certain commercialized products, the Company entered into a supply and distribution agreement (the “Karbinal Agreement”) with TRIS Pharma Inc. (“TRIS”). As part of the Karbinal Agreement, the Company had an annual minimum sales commitment, which is based on a commercial year that spans from August 1 through July 31, of 70,000 units through 2025. The Company was required to pay TRIS a royalty make whole payment (“Make-Whole Payments”) of $30 for each unit under the 70,000 units annual minimum sales commitment through 2025. As a part of the Aytu transaction, the Company assigned all its payment obligations, including the Make-Whole Payments, under the Karbinal Agreement (collectively, the “TRIS Obligations”) to Aytu. However, under the original license agreement, the Company could ultimately be liable for the TRIS Obligations to the extent Aytu fails to make the required payments. The future Make-Whole Payments to be made by Aytu are unknown as the amount owed to TRIS is dependent on the number of units sold.

Basis of Presentation and Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2024
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The Company’s unaudited condensed consolidated 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 the authoritative GAAP as found in the Accounting Standards Codification (“ASC”) and Accounting Standards Updates (“ASU”) of the Financial Accounting Standards Board (“FASB”). In the opinion of management, the accompanying unaudited condensed consolidated financial statements include all adjustments, consisting of normal recurring adjustments, which are necessary to present fairly the Company’s financial position, results of operations, and cash flows. The condensed consolidated balance sheet at December 31, 2023 has been derived from audited financial statements at that date. The interim results of operations are not necessarily indicative of the results that may occur for the full fiscal year. Certain information and footnote disclosure normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to instructions, rules, and regulations prescribed by the United States Securities and Exchange Commission (“SEC”). The Company believes that the disclosures provided herein are adequate to make the information presented not misleading when these unaudited condensed consolidated financial statements are read in conjunction with the December 31, 2023 audited consolidated financial statements. On December 28, 2023, Avalo effected a 1-for-240 reverse stock split of the outstanding shares of the Company’s common stock and began trading on a split-adjusted basis on December 29, 2023. The Company retroactively applied the reverse stock split to common share and per share amounts for periods prior to December 28, 2023, including the unaudited consolidated financial statements for the quarter ended March 31, 2023. Additionally, pursuant to their terms, a proportionate adjustment was made to the per share exercise price and number of shares issuable under all of the Company’s outstanding options and warrants, and the number of shares authorized for issuance pursuant to the Company’s equity incentive plans have been reduced proportionately. Avalo retroactively applied such adjustments in the notes to consolidated financial statements for periods presented prior to December 28, 2023, including the quarter ended March 31, 2023. The reverse stock split did not reduce the number of authorized shares of common and preferred stock and did not alter the par value. Unless otherwise indicated, all amounts in the following tables are in thousands except share and per share amounts.
Asset Acquisitions	Asset Acquisitions The Company evaluates acquisitions of assets and other similar transactions to assess whether the transaction should be accounted for as a business combination or asset acquisition by first applying a screen test to determine if substantially all of the fair value of the gross assets acquired is concentrated in a single identifiable asset or group of similar identifiable assets. If the screen test is met, the transaction is accounted for as an asset acquisition. If the screen test is not met, further determination is required as to whether the Company has acquired inputs and processes that have the ability to create outputs which would meet the definition of a business. Significant judgment is required in the application of the screen test to determine whether an acquisition is a business combination or an acquisition of assets.
Warrant Liability	Warrant Liability The Company accounts for warrants as either equity-classified or liability-classified instruments based on an assessment of the warrant’s specific terms and applicable authoritative guidance in ASC 480, Distinguishing Liabilities from Equity and ASC 815, Derivatives and Hedging. Warrants classified as equity are recorded at fair value as of the date of issuance on the Company’s consolidated balance sheets and no further adjustments to their valuation are made. Warrants classified as derivative liabilities that require separate accounting as liabilities are recorded on the Company’s consolidated balance sheets at their fair value on the date of issuance and are revalued on each subsequent balance sheet date until such instruments are exercised or expire, with any changes in the fair value between reporting periods recorded on the consolidated statement of operations. The assessment of whether the warrants are accounted for as equity-classified or liability-classified instruments is re-evaluated on a periodic basis.

Asset Acquisition (Tables)

3 Months Ended

Mar. 31, 2024

Business Combination and Asset Acquisition [Abstract]

Schedule of Asset Acquisition

Below is a summary of the total consideration, assets acquired and the liabilities assumed in connection with the Almata Transaction (in thousands):


	Three Months Ended March 31, 2024
Stock consideration1	$	12,272
Milestone payment due upon close of private placement investment2	7,500
Milestone payment due upon first patient dosed in a Phase 2 trial2	5,000
Transaction costs	2,402
Total GAAP Purchase Price at Close	$	27,174

Acquired IPR&D	$	27,538
Cash	356
Accrued expenses and other current liabilities	(720)
Total net assets acquired and liabilities assumed	$	27,174

Net Loss Per Share (Tables)

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Schedule of Net Loss Per Share


	Three Months Ended March 31, 2024
	Common stock

Net loss	$	(121,290)
Weighted average shares	859,381
Basic and diluted net loss per share	$	(141)


	Three Months Ended March 31, 2023
	Common stock

Net loss	$	(9,955)
Weighted average shares	48,845
Basic and diluted net loss per share	$	(204)

Schedule of Anti-dilutive Securities


	Three Months Ended
	March 31,
	2024	2023
Stock options	7,543	7,558
Warrants on common stock1	11,969,063	17,254
Series C Preferred Stock (as-converted to common stock)2	22,357,897	—

Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities that are Measured at Fair Value on a Recurring Basis


	March 31, 2024
	Fair Value Measurements Using
	Quoted prices in active markets for identical assets		Significant other observable inputs		Significant unobservable inputs
	(Level 1)		(Level 2)		(Level 3)
Assets
Investments in money market funds*	$	104,776	$	—	$	—
Liabilities
Derivative liability	$	—	$	—	$	5,670
Warrant liability	$	—	$	—	194,901


	December 31, 2023
	Fair Value Measurements Using
	Quoted prices in active markets for identical assets		Significant other observable inputs		Significant unobservable inputs
	(Level 1)		(Level 2)		(Level 3)
Assets
Investments in money market funds*	$	7,077	$	—	$	—
Liabilities
Derivative liability	$	—	$	—	$	5,550

*Investments in money market funds are reflected in cash and cash equivalents on the accompanying unaudited condensed consolidated balance sheets.

Schedule of Changes in the Fair Value

The table presented below is a summary of changes in the fair value of the Company’s Level 3 valuations for the warrant liability and derivative liability for the three months ended March 31, 2024:


	Warrant liability		Derivative liability		Total
Balance at December 31, 2023	$	—	$	5,550	$	5,550
Initial valuation of warrant liability	194,901		—		194,901
Change in fair value	—		120		120
Balance at March 31, 2024	$	194,901	$	5,670	$	200,571


	Warrant liability		Derivative liability		Total
Balance at December 31, 2022	$	—	$	4,830	$	4,830
Initial valuation of warrant liability	—		—		—
Change in fair value	—		180		180
Balance at March 31, 2023	$	—	$	5,010	$	5,010

Fair Value Measurement Inputs and Valuation Techniques

The warrant liability was classified as a Level 3 instrument as its value was based on unobservable market inputs. The inputs utilized include the following:


	As of March 31, 2024
Common stock price	$	21.75
Expected term (in years)	0.5
Expected volatility	109		%
Risk-free rate	5.35		%
Exercise price	$	5.796933
Dividend yield rate	—		%

Leases (Tables)

3 Months Ended

Mar. 31, 2024

Leases [Abstract]

Schedule of Assets and Liabilities Lessee

Supplemental balance sheet information related to the leased properties include (in thousands):


	As of
	March 31, 2024		December 31, 2023
Property and equipment, net	$	1,280	$	1,329

Accrued expenses and other current liabilities	$	545	$	537
Other long-term liabilities	1,281		1,366
Total operating lease liabilities	$	1,826	$	1,903

Schedule of Lease Cost

The components of lease expense for the three months ended March 31, 2024 and 2023 were as follows (in thousands):


	Three Months Ended March 31,
	2024		2023
Operating lease cost*	$	108	$	120

*Includes short-term leases, which are immaterial.

Schedule of Operating Lease Liability

The following table shows a maturity analysis of the operating lease liabilities as of March 31, 2024 (in thousands):



	Undiscounted Cash Flows
April 1, 2024 through December 31, 2024	$	407
2025	553
2026	563
2027	259
2028	201
2029	207
Thereafter	17
Total lease payments	$	2,207
Less implied interest	(381)
Total	$	1,826

Accrued Expenses and Other Current Liabilities (Tables)

3 Months Ended

Mar. 31, 2024

Accrued Liabilities and Other Liabilities [Abstract]

Schedule of Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities as of March 31, 2024 and December 31, 2023 consisted of the following (in thousands):


	As of
	March 31, 2024		December 31, 2023
Research and development	$	329	$	352
Compensation and benefits	752		580
General and administrative (including asset acquisition related transaction costs)	1,934		830
Private placement investment transaction costs	2,034		—

Commercial operations	1,789		1,873

Lease liability, current	545		537

Total accrued expenses and other current liabilities	$	7,383	$	4,172

Capital Structure (Tables)

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Schedule of Outstanding Common Stock Warrants

At March 31, 2024, the following common stock warrants were outstanding:


Number of common shares	Exercise price			Expiration
underlying warrants	per share			date
1,389	$	36,000		June 2024
148	$	7,488		June 2031
11,967,526	$	5.80	(1)	(1)
11,969,063

Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2024

Share-Based Payment Arrangement [Abstract]

Schedule of Stock-based Compensation Expense

The amount of stock-based compensation expense recognized for the three months ended March 31, 2024 and 2023 was as follows (in thousands):


	Three Months Ended March 31,
	2024		2023
Research and development	$	269	$	326
General and administrative	360		529
Total stock-based compensation	$	629	$	855

Schedule of Option Activity

A summary of option activity for the three months ended March 31, 2024 is as follows:


	Options Outstanding
	Number of shares	Weighted average exercise price per share		Weighted average grant date fair value per share		Weighted average remaining contractual term (in years)
Balance at December 31, 2023	7,211	$	3,192	$	1,930	8.3
Granted	—	$	—	$	—


Forfeited	(13)	$	660	$	473
Expired	(3)	$	11,232	$	6,444
Balance at March 31, 2024	7,195	$	3,192	$	1,936	8.0

Exercisable at March 31, 2024	4,058	$	4,791	$	2,803	7.4

Business (Details) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended
Business (Details) - USD ($) $ in Thousands	Mar. 28, 2024	Mar. 31, 2024	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Debt Instrument [Line Items]
Proceeds from issuance of common stock	$ 108,100
Net loss			$ 121,283	$ 9,947
Net cash used in operating activities			(6,202)	(10,052)
Cash and cash equivalents		$ 110,177	110,177	16,687	$ 7,415
Proceeds from sale of shares pursuant to common stock private placement, net			115,625	$ 0
Private Placement
Debt Instrument [Line Items]
Net proceeds	185,000	185,000
Proceeds from sale of shares pursuant to common stock private placement, net	108,100	108,100
Private Placement \| Preferred Stock
Debt Instrument [Line Items]
Net proceeds	115,600	115,600
Private Placement \| Warrant liability
Debt Instrument [Line Items]
Fair value of warrant	$ 69,400	$ 69,400	$ 69,400

Basis of Presentation and Significant Accounting Policies (Details)	Dec. 28, 2023
Accounting Policies [Abstract]
Stock split, conversion ratio	0.0042

Asset Acquisition - Narrative (Details) - USD ($) $ in Thousands			1 Months Ended	3 Months Ended
	Mar. 28, 2024	Mar. 27, 2024	Apr. 30, 2024	Mar. 31, 2024
Private Placement
Asset Acquisition, Contingent Consideration [Line Items]
Preferred Stock, convertible, shares issuable in common stock (in shares)		1,000		1,000
AlmataBio Transaction
Asset Acquisition, Contingent Consideration [Line Items]
Common stock shares issued (in shares)		171,605
Shares issuable in common stock (in shares)		2,412
Payments to acquire productive assets	$ 7,500			$ 7,500
AlmataBio Transaction \| Subsequent Event
Asset Acquisition, Contingent Consideration [Line Items]
Payments to acquire productive assets			$ 7,500
AlmataBio Transaction \| Milestone One
Asset Acquisition, Contingent Consideration [Line Items]
Milestone payment due upon first patient dosed in a Phase 2 trial	5,000
AlmataBio Transaction \| Milestone Two
Asset Acquisition, Contingent Consideration [Line Items]
Milestone payment due upon first patient dosed in a Phase 2 trial	$ 15,000

Asset Acquisition - Schedule of Total Consideration, Assets and the Liabilities (Details) - AlmataBio Transaction - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended
	Mar. 28, 2024	Mar. 27, 2024	Mar. 31, 2024
Asset Acquisition, Contingent Consideration [Line Items]
Stock consideration			$ 12,272
Milestone payment due upon close of private placement investment	$ 7,500		7,500
Milestone payment due upon first patient dosed in a Phase 2 trial			5,000
Transaction costs			2,402
Total GAAP Purchase Price at Close			27,174
Acquired IPR&D			27,538
Cash			356
Accrued expenses and other current liabilities			(720)
Total net assets acquired and liabilities assumed			$ 27,174
Common stock shares issued (in shares)		171,605
Shares issuable in common stock (in shares)		2,412
Convertible preferred stock, shares issued upon conversion (in shares)		2,412,000
Closing stock price (in dollars per share)		$ 4.75

Revenue (Details) - USD ($) $ in Thousands		3 Months Ended
Revenue (Details) - USD ($) $ in Thousands	Jul. 01, 2021	Dec. 31, 2024	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Total revenue			$ 0	$ 475
Discontinued Operations, Disposed of by Sale \| Pediatric Portfolio
Disaggregation of Revenue [Line Items]
Other long-term debt			600
Discontinued Operations, Disposed of by Sale \| Pediatric Portfolio \| Forecast
Disaggregation of Revenue [Line Items]
Proceeds from divestiture of businesses		$ 1,000
Product revenue, net
Disaggregation of Revenue [Line Items]
Total revenue			$ 0	$ 475
Millipred \| Teva
Disaggregation of Revenue [Line Items]
Percent of net profit for installment payments	50.00%
Installment payment	$ 500

Net Loss Per Share - Schedule of Net Loss Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands

3 Months Ended

Mar. 31, 2024

Mar. 31, 2023

Earnings Per Share [Abstract]

Net loss

$ (121,290)

$ (9,955)

Weighted average shares, basic (in shares)

859,381

48,845

Weighted average shares, diluted (in shares)

48,845

Basic net loss per share (in dollars per share)

^[1]

$ (141)

$ (204)

Diluted net loss per share (in dollars per share)

^[1]

$ (141)

$ (204)

[1]	Amounts for prior periods presented have been retroactively adjusted to reflect the 1-for-240 reverse stock split effected on December 28, 2023. See Note 1 for details.

Net Loss Per Share - Schedule of Anti-dilutive Securities (Details) - shares	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 27, 2024
Stock options
Anti-dilutive securities
Anti-dilutive securities excluded from the computation of diluted weighted shares outstanding (in shares)	7,543	7,558
Warrants on common stock
Anti-dilutive securities
Anti-dilutive securities excluded from the computation of diluted weighted shares outstanding (in shares)	11,969,063	17,254
Series C Preferred Stock (as-converted to common stock)
Anti-dilutive securities
Anti-dilutive securities excluded from the computation of diluted weighted shares outstanding (in shares)	22,357,897	0
Preferred Stock, convertible, shares issuable in common stock (in shares)			1,000

Fair Value Measurements - Schedule of Assets and Liabilities That Are Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Derivative liability	Derivative liability
Recurring Basis \| Quoted prices in active markets for identical assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in money market funds	$ 104,776	$ 7,077
Derivative liability	0	0
Warrant liability	0
Recurring Basis \| Significant other observable inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in money market funds	0	0
Derivative liability	0	0
Warrant liability	0
Recurring Basis \| Significant unobservable inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in money market funds	0	0
Derivative liability	5,670	$ 5,550
Warrant liability	$ 194,901

Fair Value Measurements - Schedule of Changes in the Fair Value (Details) - Level 3 - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Fair Value, Assets Measured on Recurring Basis [Roll Forward]
Beginning balance	$ 5,550	$ 4,830
Initial valuation of warrant liability	194,901	0
Change in fair value	120	180
Ending balance	200,571	5,010
Warrant liability
Fair Value, Assets Measured on Recurring Basis [Roll Forward]
Beginning balance	0	0
Initial valuation of warrant liability	194,901	0
Change in fair value	0	0
Ending balance	194,901	0
Derivative liability
Fair Value, Assets Measured on Recurring Basis [Roll Forward]
Beginning balance	5,550	4,830
Initial valuation of warrant liability	0	0
Change in fair value	120	180
Ending balance	$ 5,670	$ 5,010

Fair Value Measurements - Narrative (Details) $ in Thousands		3 Months Ended
	Mar. 28, 2024 USD ($) shares	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net proceeds from the sale	$ 79,300	$ 79,276	$ 0
Change in fair value of derivative liability		120	$ 180
AVTX-501
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Maximum aggregate milestone payment				$ 20,000
AVTX-007 \| Milestone One
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Maximum aggregate milestone payment				6,250
AVTX-007 \| Milestone Two
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Maximum aggregate milestone payment				67,500
AVTX-611
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Maximum aggregate milestone payment				20,000
Derivative liability \| AVTX-501
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Initial valuation of warrant liability		3,800		$ 3,500
Derivative liability \| AVTX-501 \| Measurement Input, Probability Of Success
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input				0.23
Derivative liability \| AVTX-501 \| Expected term (in years)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input, term				3 years 7 months 6 days
Derivative liability \| AVTX-007
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Initial valuation of warrant liability		1,900		$ 1,300
Derivative liability \| AVTX-007 \| Measurement Input, Probability Of Success
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input				0.17
Derivative liability \| AVTX-007 \| Expected term (in years)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input, term				4 years 7 months 6 days
Derivative liability \| AVTX-007 \| Measurement Input, Sales Forecast Peak
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input				300,000
Derivative liability \| AVTX-501 And AVTX-007
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Initial valuation of warrant liability		$ 5,700		$ 4,800
ES \| Derivative liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Initial valuation of warrant liability				$ 5,000
Warrant liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Initial valuation of warrant liability	194,900
Proceeds from issuance of warrants	$ 115,600
Warrant liability \| Private Placement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Sale of stock (in shares) \| shares	11,967,526
Series C Preferred Stock \| Private Placement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Sale of stock (in shares) \| shares	19,946

Fair Value Measurements - Fair Value Measurement Inputs and Valuation Techniques (Details) - Level 3 - Warrant liability	Mar. 31, 2024 $ / shares
Level 3 Valuation
Common stock price (in dollars per share)	$ 21.75
Exercise price per share (in dollars per share)	$ 5.796933
Expected term (in years)
Level 3 Valuation
Warrants liability measurement input	0.5
Expected volatility
Level 3 Valuation
Warrants liability measurement input	1.09
Risk-free rate
Level 3 Valuation
Warrants liability measurement input	0.0535
Dividend yield rate
Level 3 Valuation
Warrants liability measurement input	0

Leases - Narrative (Details) $ in Millions	3 Months Ended
Leases - Narrative (Details) $ in Millions	Mar. 31, 2024 USD ($) renewal_option property
Lessee, Lease, Description [Line Items]
Number of leased properties \| property	2
Remaining lease team	4 years 4 months 24 days
Discount rate	9.10%
Building \| Maryland
Lessee, Lease, Description [Line Items]
Annual base rent	$ 0.2
Annual rent increase (as a percent)	2.50%
Rent abatement period	12 months
Lease term of contract	10 years
Number of renewal options \| renewal_option	2
Renewal term	5 years
Building \| Pennsylvania
Lessee, Lease, Description [Line Items]
Annual rent increase (as a percent)	2.40%
Lease term of contract	5 years 3 months
Lessee, operating lease, annual base rent	$ 0.2
Operating lease, expense	$ 0.1

Leases - Schedule of Assets and Liabilities Lessee (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Leases [Abstract]
Property and equipment, net	$ 1,280	$ 1,329
Accrued expenses and other current liabilities	545	537
Other long-term liabilities	1,281	1,366
Total operating lease liabilities	$ 1,826	$ 1,903
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property and equipment, net	Property and equipment, net
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued expenses and other current liabilities	Accrued expenses and other current liabilities
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other long-term liabilities	Other long-term liabilities

Leases - Schedule of Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Leases [Abstract]
Operating lease cost	$ 108	$ 120

Leases - Schedule of Operating Lease Liability (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Leases [Abstract]
April 1, 2024 through December 31, 2024	$ 407
2025	553
2026	563
2027	259
2028	201
2029	207
Thereafter	17
Total lease payments	2,207
Less implied interest	(381)
Total	$ 1,826	$ 1,903

Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Accrued Liabilities and Other Liabilities [Abstract]
Research and development	$ 329	$ 352
Compensation and benefits	752	580
General and administrative (including asset acquisition related transaction costs)	1,934	830
Private placement investment transaction costs	2,034	0
Commercial operations	1,789	1,873
Lease liability, current	545	537
Total accrued expenses and other current liabilities	$ 7,383	$ 4,172

Notes Payable - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended	3 Months Ended
	Sep. 22, 2023	Jun. 04, 2021	Jun. 30, 2023	Mar. 31, 2024	Sep. 30, 2023	Mar. 31, 2023	Jun. 30, 2022
Line of Credit Facility [Line Items]
Accretion of debt discount				$ 0		$ 350
Horizon & Powerscourt Notes \| Notes Payable
Line of Credit Facility [Line Items]
Principal amount		$ 35,000
Principal payments on Notes	$ 14,300		$ 6,000				$ 15,000
Horizon & Powerscourt Notes \| Notes Payable \| Warrant liability
Line of Credit Facility [Line Items]
Sale of stock (in shares)		148
Exercise price per share (in dollars per share)		$ 7,488
Warrants or rights exercisable term		10 years
Accretion of debt discount					$ 900

Capital Structure - Narrative (Details) $ / shares in Units, $ in Thousands			1 Months Ended	3 Months Ended
	Mar. 28, 2024 USD ($) shares	Mar. 27, 2024 shares	Mar. 31, 2024 USD ($) class_of_stock $ / shares shares	Mar. 31, 2024 USD ($) class_of_stock $ / shares shares	Mar. 31, 2023 USD ($)	Dec. 31, 2023 $ / shares shares
Common Stock Warrants
Number of classes of stock authorized (in shares) \| class_of_stock			2	2
Number of shares of capital stock authorized to issue (in shares)			205,000,000	205,000,000
Common stock, shares authorized (in shares)			200,000,000	200,000,000		200,000,000
Temporary equity, shares authorized (in shares)			5,000,000	5,000,000
Common stock, par value (in dollars per share) \| $ / shares			$ 0.001	$ 0.001		$ 0.001
Temporary equity, par value per share (in dollars per share) \| $ / shares			$ 0.001	$ 0.001
Proceeds from sale of shares pursuant to common stock private placement, net \| $				$ 115,625	$ 0
Private placement transaction costs \| $				$ 9,220	$ 0
Temporary equity, shares outstanding (in shares)			22,360	22,360		0
Other Expense
Common Stock Warrants
Private placement transaction costs \| $				$ 1,700
Warrant liability \| Level 3
Common Stock Warrants
Exercise price per share (in dollars per share) \| $ / shares			$ 5.796933	$ 5.796933
Series C Preferred Stock
Common Stock Warrants
Temporary equity, shares authorized (in shares)			34,326	34,326		0
Temporary equity, par value per share (in dollars per share) \| $ / shares			$ 0.001	$ 0.001		$ 0.001
Temporary equity, shares outstanding (in shares)			22,358	22,358		0
Series D Preferred Stock
Common Stock Warrants
Temporary equity, shares authorized (in shares)			1	1		0
Temporary equity, par value per share (in dollars per share) \| $ / shares			$ 0.001	$ 0.001		$ 0.001
Temporary equity, shares outstanding (in shares)			1	1		0
Temporary equity, liquidation preference (in dollars per share) \| $ / shares			$ 0.001	$ 0.001
Series E Preferred Stock
Common Stock Warrants
Temporary equity, shares authorized (in shares)			1	1		0
Temporary equity, par value per share (in dollars per share) \| $ / shares			$ 0.001	$ 0.001		$ 0.001
Temporary equity, shares outstanding (in shares)			1	1		0
Temporary equity, liquidation preference (in dollars per share) \| $ / shares			$ 0.001	$ 0.001
Private Placement
Common Stock Warrants
Preferred Stock, convertible, shares issuable in common stock (in shares)		1,000	1,000	1,000
Net proceeds \| $	$ 185,000		$ 185,000
Proceeds from sale of shares pursuant to common stock private placement, net \| $	$ 108,100		108,100
Transactions costs, percentage of gross proceeds				2.50%
Private Placement \| Other Expense
Common Stock Warrants
Private placement transaction costs \| $				$ 7,500
Private Placement \| Warrant liability
Common Stock Warrants
Sale of stock (in shares)	11,967,526
Fair value of warrant \| $	$ 69,400		69,400	69,400
Private Placement \| Preferred Stock
Common Stock Warrants
Net proceeds \| $	$ 115,600		$ 115,600
Private Placement \| Series C Preferred Stock
Common Stock Warrants
Sale of stock (in shares)	19,946
AlmataBio Transaction
Common Stock Warrants
Common stock shares issued (in shares)		171,605
Shares issuable in common stock (in shares)		2,412
AlmataBio Transaction \| Series C Preferred Stock
Common Stock Warrants
Issuance of Series C Preferred Stock pursuant to Almata Transaction \| $				$ 11,457

Capital Structure - Schedule of Outstanding Common Stock Warrants (Details) - Common Stock	Mar. 31, 2024 $ / shares shares
Common Stock Warrants
Number of shares available under warrant (in shares)	11,969,063
Common Stock Warrants Expiration Date Of June 2024
Common Stock Warrants
Number of shares available under warrant (in shares)	1,389
Exercise price per share (in dollars per share) \| $ / shares	$ 36,000
Common Stock Warrants Expiration June 2031
Common Stock Warrants
Number of shares available under warrant (in shares)	148
Exercise price per share (in dollars per share) \| $ / shares	$ 7,488
Common Stock Warrants Expiration February 2024
Common Stock Warrants
Number of shares available under warrant (in shares)	11,967,526
Exercise price per share (in dollars per share) \| $ / shares	$ 5.80

Stock-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands				3 Months Ended		6 Months Ended
	Jan. 01, 2024	Jan. 01, 2023	Apr. 05, 2016	Mar. 31, 2024	Mar. 31, 2023	Jun. 30, 2023	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation				$ 629	$ 855
Employee Stock Purchase Plan (ESPP)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock remaining for future issuance (in shares)				958
Purchase price of common stock, percentage			85.00%
Maximum portion of earning an employee may contribute to the ESPP Plan			15.00%
Maximum annual amount of fair market value of the company's common stock that a participant may accrue the rights to purchase			$ 25
Shares of common stock for future issuance (in shares)			174
Automatic increase to shares authorized as percentage of outstanding stock at end of preceding year			1.00%
Service Based Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options vested (in shares)				545
Weighted average exercise price (in dollars per share)				$ 1,598
Fair value of options vested in period				$ 600
Total stock-based compensation				600
Compensation not yet recognized				$ 2,200
Period for recognition				1 year 4 months 24 days
Exercisable stock options (in shares)				7,195			7,211
Weighted average share price (in dollars per share)				$ 3,192			$ 3,192
Weighted average remaining contractual term				8 years		8 years 3 months 18 days
Market Based Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercisable stock options (in shares)				348
Weighted average share price (in dollars per share)				$ 9,488
Weighted average remaining contractual term				2 months 12 days
Exercise of stock options (in shares)				0
Forfeited (in shares)				0
Granted (in shares)				0
2016 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual share reserve increase				4.00%
Increase in number of shares reserved for issuance (in shares)		32,070
Common stock remaining for future issuance (in shares)				32,520
2016 Plan \| Equity Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award expiration period				10 years
2016 Plan \| Equity Option \| Maximum \| Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				3 years
2016 Plan \| Equity Option \| Maximum \| Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				4 years
2016 Plan \| Equity Option \| Minimum \| Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				1 year
Employee Stock Purchase Plan (ESPP)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase in number of shares reserved for issuance (in shares)	174

Stock-Based Compensation - Schedule of Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	$ 629	$ 855
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	269	326
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation	$ 360	$ 529

Stock-Based Compensation - Schedule of Option Activity (Details) - Service Based Options - $ / shares	3 Months Ended	6 Months Ended
	Mar. 31, 2024	Jun. 30, 2023
Number of shares
Balance, beginning of period (in shares)	7,211
Granted (in shares)	0
Forfeited (in shares)	(13)
Expired (in shares)	(3)
Balance, ending of period (in shares)	7,195
Exercisable (in shares)	4,058
Weighted average exercise price per share
Balance, beginning of period (in dollars per share)	$ 3,192
Granted (in dollars per share)	0
Forfeitures (in dollars per share)	660
Expired (in dollars per share)	11,232
Balance, ending of period (in dollars per share)	3,192
Exercisable (in dollars per share)	4,791
Weighted average grant date fair value per share
Balance, beginning of period (in dollars per share)	1,930
Granted (in dollars per share)	0
Forfeited (in dollars per share)	473
Expired (in dollars per share)	6,444
Balance, ending of period (in dollars per share)	1,936
Exercisable (in dollars per share)	$ 2,803
Weighted average remaining contractual term (in years)
Weighted average remaining contractual term	8 years	8 years 3 months 18 days
Exercisable	7 years 4 months 24 days

Commitments and Contingencies (Details)			1 Months Ended	3 Months Ended		12 Months Ended
Commitments and Contingencies (Details)	Mar. 28, 2024 USD ($)	Oct. 27, 2023 USD ($)	Jul. 31, 2019 USD ($)	Mar. 31, 2024 USD ($)	Mar. 31, 2020 USD ($) milestone	Dec. 31, 2018 unit $ / shares	Dec. 31, 2023 USD ($)	Aug. 14, 2023 USD ($)	Jun. 22, 2021 USD ($)	Jun. 09, 2021 USD ($)	May 28, 2021 USD ($)	Mar. 25, 2021 USD ($)	Feb. 03, 2020 USD ($)
Other Commitments [Line Items]
Accrued expenses and other current liabilities				$ 7,383,000			$ 4,172,000
Contingent consideration				12,500,000			0
Payment received			$ 2,000,000
Period after public launch to terminate agreement			3 years
Percentage of net present value of royalty payments			75.00%
Aevi
Other Commitments [Line Items]
Milestone payment				0
AlmataBio Transaction
Other Commitments [Line Items]
Payments to acquire productive assets	$ 7,500,000			7,500,000
Milestone payment due upon first patient dosed in a Phase 2 trial				5,000,000
Aevi
Other Commitments [Line Items]
Number of milestones \| milestone					2
Milestone payment due upon first patient dosed in a Phase 2 trial					$ 6,500,000
Milestone One \| AlmataBio Transaction
Other Commitments [Line Items]
Milestone payment due upon first patient dosed in a Phase 2 trial	5,000,000
Milestone One \| Aevi
Other Commitments [Line Items]
Milestone payment due upon first patient dosed in a Phase 2 trial													$ 2,000,000
Milestone One \| AVTX-009
Other Commitments [Line Items]
Contingent consideration				7,500,000
Milestone Two \| AlmataBio Transaction
Other Commitments [Line Items]
Milestone payment due upon first patient dosed in a Phase 2 trial	$ 15,000,000
Milestone Two \| Aevi
Other Commitments [Line Items]
Milestone payment due upon first patient dosed in a Phase 2 trial													$ 4,500,000
Milestone Two \| AVTX-009
Other Commitments [Line Items]
Contingent consideration				5,000,000
Lilly License Agreement \| AVTX-009 Lilly License Agreement
Other Commitments [Line Items]
Milestone payments				70,000,000
Lilly License Agreement \| AVTX-009 Lilly License Agreement \| Milestone One
Other Commitments [Line Items]
Maximum aggregate milestone payment				720,000,000
Kyowa Kirin Co., Ltd. (KKC) \| AVTX-002 KKC License Agreement
Other Commitments [Line Items]
Upfront license fee												$ 10,000,000
Percent of payments received from sublicensing												30.00%
Research and development expense				0
Cumulative expense recognized to date				0
Kyowa Kirin Co., Ltd. (KKC) \| AVTX-002 KKC License Agreement \| Milestone One
Other Commitments [Line Items]
Maximum aggregate milestone payment												$ 112,500,000
Kyowa Kirin Co., Ltd. (KKC) \| AVTX-002 KKC License Agreement \| Milestone Two
Other Commitments [Line Items]
Maximum aggregate milestone payment												$ 75,000,000
Sanford Burnham Prebys Medical Discovery Institute \| AVTX-008 Sanford Burnham Prebys License Agreement
Other Commitments [Line Items]
Upfront license fee									$ 400,000
Research and development expense				0
Cumulative expense recognized to date				0
Patent costs									500,000
Sanford Burnham Prebys Medical Discovery Institute \| AVTX-008 Sanford Burnham Prebys License Agreement \| Milestone One
Other Commitments [Line Items]
Maximum aggregate milestone payment									24,200,000
Sanford Burnham Prebys Medical Discovery Institute \| AVTX-008 Sanford Burnham Prebys License Agreement \| Milestone Two
Other Commitments [Line Items]
Maximum aggregate milestone payment									$ 50,000,000
Astellas Pharma, Inc. (Astellas) \| AVTX-006 Astellas License Agreement
Other Commitments [Line Items]
Maximum aggregate milestone payment				5,500,000
Upfront license fee				500,000
Research and development expense				0
Cumulative expense recognized to date				500,000
ES \| AVTX-406 License Assignment
Other Commitments [Line Items]
Revenue recognized from milestones to date				0
ES \| Milestone One \| AVTX-406 License Assignment
Other Commitments [Line Items]
Maximum proceeds from milestones										$ 6,000,000
ES \| Milestone Two \| AVTX-406 License Assignment
Other Commitments [Line Items]
Maximum proceeds from milestones										$ 20,000,000
Alto \| AVTX-301 Out-License
Other Commitments [Line Items]
Maximum proceeds from milestones											$ 18,600,000
Revenue recognized from milestones to date				0
AUG Therapeutics, LLC \| Purchase Agreement \| AVTX-800 Series Asset Sale
Other Commitments [Line Items]
Upfront payment paid		$ 200,000
Asset acquisition consideration transferred, liabilities		$ 400,000
Contingent milestone upfront payment percentage		0.20
Contingent milestone payment		$ 15,000,000
Maximum potential payments		$ 45,000,000
TRIS Pharma \| Karbinal Agreement
Other Commitments [Line Items]
Minimum quantity required \| unit						70,000
Make whole payment per unit (in dollars per share) \| $ / shares						$ 30
Apollo AP43 Limited
Other Commitments [Line Items]
Payments for legal settlements				$ 200,000
Accrued expenses and other current liabilities							$ 200,000
Apollo AP43 Limited \| Maximum
Other Commitments [Line Items]
Estimate of possible loss								$ 800,000

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AVTX Avalo Therapeutics Inc