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

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES

EXCHANGE ACT OF 1934

For the quarterly period ended: March 31, 2024

☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES

EXCHANGE ACT OF 1934

For the transition period from                      to                

Commission File Number: 001-41090

Southland Holdings, Inc.

(Exact name of registrant as specified in its charter)

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​	​	​
Delaware		87-1783910
(State or other jurisdiction of incorporation or organization)	​	(IRS Employer Identification No.)

​

1100 Kubota Dr.

Grapevine, TX 76051

(Address of principal executive offices) (Zip Code)

[phone]

(Registrant’s telephone number, including area code)

Securities Registered Pursuant to Section 12(b) of the Act:

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	​		​
	​		​
Title of Each Class		Trading Symbol		Name of Each Exchange on Which Registered
Common Stock, par value $0.0001 per share	​	SLND	​	NYSE American LLC
Redeemable warrants, exercisable for shares of common stock at an exercise price of $11.50 per share	​	SLND WS	​	NYSE American LLC

​

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 9, 2024, there were 48,025,688 shares of common stock, par value $0.0001 per share, issued and outstanding.

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Table of Contents

SOUTHLAND HOLDINGS, INC.

TABLE OF CONTENTS

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​	Page
PART I – Financial Information	​
ITEM 1. Financial Statements	1
ITEM 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	19
ITEM 3. Quantitative and Qualitative Disclosures About Market Risk	27
ITEM 4. Controls and Procedures	27
​	​
PART II – Other Information	28
ITEM 1. Legal Proceedings	28
ITEM 1A. Risk Factors	28
ITEM 5. Other Information	28
ITEM 6. Exhibits	29
Signatures	30
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Unless otherwise stated in this Quarterly Report on Form 10-Q (this “Quarterly Report”), references to the “Company,” “our,” “us,” “we,” or “Southland” refer to Southland Holdings, Inc.

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This Quarterly Report includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 (the “Securities Act”), as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). These statements are based on the reasonable beliefs and assumptions of our management. Forward-looking statements are inherently subject to risks, uncertainties and assumptions. Generally, statements that are not historical facts, including statements concerning possible or assumed future actions, business strategies, events or results of operations, are forward-looking statements. These statements may be preceded by, followed by or include the words “believes,” “estimates,” “expects,” “projects,” “forecasts,” “may,” “will,” “should,” “seeks,” “plans,” “scheduled,” “anticipates,” “intends” or similar expressions. Forward-looking statements contained in this Quarterly Report include, but are not limited to, statements about our ability to:

●

Access, collect and use personal data about consumers;

●

Execute our business strategy, including monetization of services provided and expansions in and into existing and new lines of business;

●

Anticipate the impact of the novel coronavirus (“COVID-19”) pandemic and its effect on our business and financial condition;

●

Manage risks associated with operational changes in response to the COVID-19 pandemic;

●

Anticipate the uncertainties inherent in the development of new business lines and business strategies;

●

Retain and hire necessary employees;

●

Increase brand awareness;

●

Attract, train and retain effective officers, key employees or directors;

●

Upgrade and maintain information technology systems;

●

Potential disruptions, failures or security breaches of the information technology systems on which we rely to conduct our business;

●

Acquire and protect intellectual property;

●

Meet future liquidity requirements and comply with restrictive covenants related to long-term indebtedness;

●

Effectively respond to general economic and business conditions;

●

Maintain the listing of our securities on the NYSE American LLC (“NYSE”) or another national securities exchange;

●

Obtain additional capital, including use of debt markets;

●

Enhance future operating and financial results;

●

Anticipate rapid technological changes;

●

Comply with laws and regulations applicable to its business, including laws and regulations related to data privacy and insurance operations;

●

Stay abreast of modified or new laws and regulations applying to our business;

●

Anticipate the impact of, and respond to, new accounting standards;

●

Anticipate any rise in interest rates which would increase our cost of capital;

●

Anticipate the significance and timing of contractual obligations;

●

Maintain key strategic relationships with partners and distributors;

●

Respond to uncertainties associated with product and service development and market acceptance;

●

Anticipate the ability of the renewable sector to develop to the size or at the rate it expects;

●

Anticipate the impact of various federal, state, and local government funding initiatives;

●

Manage to finance operations on an economically viable basis;

●

Anticipate the impact of new U.S. federal income tax law, including the impact on deferred tax assets; and

●

Successfully defend or pursue claims and litigation.

​

Forward-looking statements are not guarantees of performance and speak only as of the date hereof. While we believe that these forward-looking statements are reasonable, there can be no assurance that we will achieve or realize these plans, intentions, or expectations. You should understand that the following important factors, in addition to those

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Table of Contents

discussed under the heading “Item 1A. Risk Factors” and elsewhere in our Annual Report on Form 10-K for the year ended December 31, 2023 (the “Annual Report”), “Item 1A. Risk Factors” to Part II in this Quarterly Report and other reports or documents we file with the Securities and Exchange Commission (“SEC”), could affect our future results and could cause those results or other outcomes to differ materially from those expressed or implied in the forward-looking statements in this Quarterly Report:

●

Litigation, complaints, product liability claims and/or adverse publicity;

●

The impact of changes in consumer spending patterns, consumer preferences, local, regional and national economic conditions, crime, weather, demographic trends and employee availability;

●

Increases and decreases in utility and other energy costs, increased costs related to utility or governmental requirements;

●

Privacy and data protection laws, privacy or data breaches or the loss of data; and

●

The impact of the COVID-19 pandemic and its effect on business and financial conditions.

​

These and other factors that could cause actual results to differ from those implied by the forward-looking statements in this Quarterly Report are more fully described under the heading “Item 1A. Risk Factors” in the Annual Report and elsewhere in this Quarterly Report. The risks described under the heading “Item 1A. Risk Factors” in the Annual Report are not exhaustive. Other sections of this Quarterly Report may describe additional factors that could adversely affect our business, financial condition or results of operations. New risk factors emerge from time to time and it is not possible to predict all such risk factors, nor can we assess the impact of all such risk factors on the business, nor the extent to which any factor or combination of facts may cause actual results to differ materially from those contained in any forward-looking statements. All forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by the foregoing cautionary statements. We undertake no obligations to update or revise publicly any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

In addition, statements of belief and similar statements reflect our reasonable beliefs and opinions on the relevant subject. These statements are based upon information available to us, as applicable, as of the date of this Quarterly Report, and while we believe such information forms a reasonable basis for such statements, such information may be limited or incomplete, and such statements should not be read to indicate that we have conducted an exhaustive inquiry into, or review of, all potentially available relevant information. These statements are inherently uncertain, involve risks and are subject to change based on various factors, including those discussed under the headings “Item 1A. Risk Factors and “Item 2. Management Discussion and Analysis of Financial Condition and Results of Operations” in this Quarterly Report.

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PART I – FINANCIAL INFORMATION

Item 1. Financial Statements

SOUTHLAND HOLDINGS, INC.

Condensed Consolidated Balance Sheets (unaudited)

​	​	​	​	​	​
(Amounts in thousands, except share and per share data)	As of
ASSETS	March 31, 2024			December 31, 2023
Current assets	​	​	​	​	​
Cash and cash equivalents	$	31,239	​	$	49,176
Restricted cash		15,278	​		14,644
Accounts receivable, net		217,233	​		194,869
Retainage receivables		118,558	​		109,562
Contract assets		570,120	​		554,202
Other current assets		14,632	​		20,083
Total current assets		967,060	​		942,536
​	​	​	​	​	​
Property and equipment, net		102,773	​		102,150
Right-of-use assets		10,494	​		12,492
Investments - unconsolidated entities		124,628	​		121,648
Investments - limited liability companies		2,590	​		2,590
Investments - private equity		3,120	​		3,235
Deferred tax asset	​	11,896	​	​	11,496
Goodwill		1,528	​		1,528
Intangible assets, net		1,616	​		1,682
Other noncurrent assets		1,711	​		1,711
Total noncurrent assets		260,356	​		258,532
Total assets	$	1,227,416	​	$	1,201,068
​	​	​	​	​	​
LIABILITIES AND EQUITY	​	​	​	​	​
Current liabilities	​	​	​	​	​
Accounts payable	$	202,441	​	$	162,464
Retainage payable		43,422	​		40,950
Accrued liabilities		117,714	​		124,667
Current portion of long-term debt		46,425	​		48,454
Short-term lease liabilities		11,096	​		14,081
Contract liabilities		185,183	​		193,351
Total current liabilities		606,281	​		583,967
​	​	​	​	​	​
Long-term debt		255,590	​		251,906
Long-term lease liabilities		4,985	​		5,246
Deferred tax liabilities		2,250	​		2,548
Long-term accrued liabilities	​	49,593	​	​	49,109
Other noncurrent liabilities		47,738	​		47,728
Total long-term liabilities		360,156	​		356,537
Total liabilities		966,437	​		940,504
​	​	​	​	​	​
Commitment and contingencies (Note 7)		​	​		​
​	​	​	​	​	​
Stockholders' equity	​	​	​	​	​
Preferred stock, $0.0001 par value, authorized 50,000,000 shares, none issued and outstanding as of March 31, 2024 and December 31, 2023		—	​		—
Common stock, $0.0001 par value, authorized 500,000,000 shares, 48,025,688 and 47,891,984 issued and outstanding as of March 31, 2024 and December 31, 2023, respectively		5	​		5
Additional paid-in-capital		270,801	​		270,330
Accumulated deficit	​	(19,659)	​	​	(19,253)
Accumulated other comprehensive loss		(1,832)	​		(1,460)
Total stockholders' equity	​	249,315	​	​	249,622
Noncontrolling interest		11,664	​		10,942
Total equity		260,979	​		260,564
Total liabilities and equity	$	1,227,416	​	$	1,201,068

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See notes to unaudited condensed consolidated financial statements

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Table of Contents

SOUTHLAND HOLDINGS, INC.

Condensed Consolidated Statements of Operations (unaudited)

​	​	​	​	​	​
​	Three Months Ended
(Amounts in thousands except shares and per share data)	March 31, 2024			March 31, 2023
Revenue	$	288,097	​	$	274,829
Cost of construction		267,676	​		255,886
Gross profit		20,421	​		18,943
Selling, general, and administrative expenses		14,394	​		15,571
Operating income		6,027	​		3,372
Loss on investments, net		(76)	​		(32)
Other income (loss), net		536	​		(2,599)
Interest expense		(5,655)	​		(3,254)
Earnings (losses) before income taxes		832	​		(2,513)
Income tax expense		307	​		1,753
Net income (loss)		525	​		(4,266)
Net income attributable to noncontrolling interests		931	​		398
Net loss attributable to Southland Stockholders	$	(406)	​	$	(4,664)
​	​	​	​	​	​
Net loss per share attributable to common stockholders	​	​	​	​	​
Basic	$	(0.01)	​	​	(0.11)
Diluted	$	(0.01)	​	​	(0.11)
Weighted average shares outstanding	​	​	​	​	​
Basic	​	47,925,072	​	​	44,407,831
Diluted	​	47,925,072	​	​	44,407,831

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See notes to unaudited condensed consolidated financial statements

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SOUTHLAND HOLDINGS, INC.

Condensed Consolidated Statements of Comprehensive Loss (unaudited)

​	​	​	​	​	​
​	Three Months Ended
(Amounts in thousands)	March 31, 2024			March 31, 2023
Net income (loss)	$	525	​	$	(4,266)
Foreign currency translation adjustment, net of tax		(581)	​		506
Comprehensive loss, net of tax	​	(56)	​	​	(3,760)
Comprehensive income attributable to noncontrolling interest	​	722	​	​	400
Comprehensive loss attributable to Southland Stockholders	$	(778)	​	$	(4,160)

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See notes to unaudited condensed consolidated financial statements

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SOUTHLAND HOLDINGS, INC.

Condensed Consolidated Statements of Equity (unaudited)

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Shares

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Preferred

​

Common

​

Preferred

Common

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​

Additional

Accumulated

Members

Noncontrolling

Total

(Amounts in thousands)

​

stock

​

stock

​

Stock

​

Stock

​

AOCI

​

Paid-In Capital

​

Deficit

​

Capital

​

Interest

​

Equity

Balance as of December 31, 2023

​

—

​

47,891,984

​

$

—

​

$

5

​

$

(1,460)

​

$

270,330

​

$

(19,253)

​

$

—

​

$

10,942

​

$

260,564

Issuance of shares - RSUs, net of tax

​

—

​

133,704

​

​

—

​

​

—

​

​

—

​

​

(206)

​

​

—

​

​

—

​

​

—

​

​

(206)

Share Based Compensation

​

—

​

—

​

​

—

​

​

—

​

​

—

​

​

677

​

​

—

​

​

—

​

​

—

​

​

677

Net income (loss)

​

—

​

—

​

—

​

—

​

—

​

—

​

(406)

​

—

​

931

​

525

Other comprehensive loss

​

—

​

—

​

—

​

—

​

(372)

​

—

​

—

​

—

​

(209)

​

(581)

Balance as of March 31, 2024

​

—

​

48,025,688

​

$

—

​

$

5

​

$

(1,832)

​

$

270,801

​

$

(19,659)

​

$

—

​

$

11,664

​

$

260,979

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​

​

​

​

​

​

​

​

​

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​

​

​

​

​

​

​

​

​

​

Shares

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Preferred

​

Common

​

Preferred

Common

​

​

Additional

Accumulated

Members

Noncontrolling

Total

(Amounts in thousands)

​

stock

​

stock

​

Stock

​

Stock

​

AOCI

​

Paid-In Capital

​

Deficit

​

Capital

​

Interest

​

Equity

Balance as of December 31, 2022

​

24,400,000

​

—

​

$

24,400

​

$

—

​

$

(2,576)

​

$

—

​

$

—

​

$

327,614

​

$

10,446

​

$

359,884

Recapitalization

​

—

​

44,407,831

​

​

—

​

​

4

​

​

—

​

​

284,569

​

​

—

​

​

(327,614)

​

​

—

​

​

(43,041)

Balance as of December 31, 2022

​

24,400,000

​

44,407,831

​

​

24,400

​

​

4

​

​

(2,576)

​

​

284,569

​

​

—

​

​

—

​

​

10,446

​

​

316,843

Preferred stock repurchase and dividends

​

(24,400,000)

​

—

​

(24,400)

​

—

​

—

​

(50,129)

​

—

​

—

​

(24)

​

(74,553)

Issuance of post-merger earnout shares

​

—

​

—

​

​

—

​

​

4

​

​

—

​

​

34,996

​

​

—

​

​

—

​

​

—

​

​

35,000

Distributions to joint venture partner

​

—

​

—

​

—

​

—

​

—

​

—

​

—

​

—

​

(110)

​

(110)

Net (loss) income

​

—

​

—

​

—

​

—

​

—

​

—

​

(4,664)

​

—

​

398

​

(4,266)

Other comprehensive income

​

—

​

—

​

—

​

—

​

504

​

—

​

—

​

—

​

2

​

506

Balance as of March 31, 2023

​

—

​

44,407,831

​

$

—

​

$

8

​

$

(2,072)

​

$

269,436

​

$

(4,664)

​

$

—

​

$

10,712

​

$

273,420

​

​

See notes to unaudited condensed consolidated financial statements

​

​

​

​

4

Table of Contents

​

SOUTHLAND HOLDINGS, INC.

Condensed Consolidated Statements of Cash Flows (unaudited)

​	​	​	​	​	​
​	Three Months Ended
(Amounts in thousands)	March 31, 2024			March 31, 2023
Cash flows from operating activities:	​			​
Net income (loss)	$	525	​	$	(4,266)
Adjustments to reconcile net income (loss) to net cash used in operating activities			​
Depreciation and amortization		5,577	​		8,560
Deferred taxes		(642)	​		(514)
Change in fair value of earnout liability	​	—	​	​	2,936
Share based compensation	​	677	​	​	—
Gain on sale of assets		(2,385)	​		(967)
Foreign currency remeasurement (gain) loss		64	​		(5)
Earnings from equity method investments	​	(1,907)	​	​	(3,242)
TZC investment present value accretion	​	(627)	​	​	(603)
Loss on trading securities, net		76	​		32
Changes in assets and liabilities:	​	​	​	​	​
Accounts receivable		(32,071)	​		(49,278)
Contract assets		(16,175)	​		(30,306)
Prepaid expenses and other current assets		5,450	​		119
Right-of-use assets		1,994	​		(1,764)
Accounts payable and accrued expenses		40,059	​		33,705
Contract liabilities		(8,162)	​		7,241
Operating lease liabilities		(1,883)	​		1,820
Other		(467)	​		1,753
Net cash used in operating activities		(9,897)	​		(34,779)
​	​	​	​	​	​
Cash flows from investing activities:			​
Purchase of property and equipment		(3,128)	​		(1,166)
Proceeds from sale of property and equipment		2,657	​		1,295
Contributions to other investments	​	(13)	​	​	(81)
Distributions from other investments		52	​		—
Net cash (used in) provided by investing activities		(432)	​		48
​	​	​	​	​	​
Cash flows from financing activities:			​
Borrowings on revolving credit facility		5,000	​		3,000
Borrowings on notes payable		222	​		181
Payments on notes payable		(10,650)	​		(12,382)
Payments of deferred financing costs		(75)	​		—
Advances from related parties		—	​		(493)
Payments from related parties		125	​		6
Payments on finance lease		(1,359)	​		(1,189)
Distribution to members		—	​		(110)
Payment of taxes related to net share settlement of RSUs		(206)	​		—
Other	​	—	​	​	17,088
Net cash (used in) provided by financing activities		(6,943)	​		6,101
​	​	​	​	​	​
Effect of exchange rate on cash		(31)	​		190
​	​	​	​	​	​
Net decrease in cash and cash equivalents and restricted cash		(17,303)	​		(28,440)
Beginning of period		63,820	​		71,991
End of period	$	46,517	​	$	43,551
​	​	​	​	​	​
Supplemental cash flow information			​
Cash refunds from income taxes	$	454	​	$	87
Cash paid for interest	$	5,527	​	$	3,230
Non-cash investing and financing activities:			​		​
Lease assets obtained in exchange for new leases	$	1,252	​	$	6,416
Assets obtained in exchange for notes payable	$	3,341	​	$	2,299
Related party payable exchanged for note payable	$	3,797	​	$	—
Issuance of post-merger earn out shares	$	—	​	$	35,000
Dividend financed with notes payable	$	—	​	$	50,000

​

See notes to unaudited condensed consolidated financial statements

5

Table of Contents

SOUTHLAND HOLDINGS, INC.

Notes to Condensed Consolidated Financial Statements

(Unaudited)

​

1. Description of Business

Southland Holdings, Inc. (“Southland”, the “Company”, “we”, “us”, or “our”) is a diverse leader in specialty infrastructure construction with roots dating back to 1900. We design and construct projects in the bridges, tunnels, transportation and facilities, marine, steel structures, water and wastewater treatment, and water pipelines end markets.

Southland is based in Grapevine, Texas. It is the parent company of Johnson Bros. Corporation, American Bridge Holding Company (“American Bridge”), Oscar Renda Contracting, Southland Contracting, Mole Constructors, Heritage Materials and other affiliates. American Bridge, a builder of specialty construction projects, was acquired in 2020. With the combined capabilities of these six primary subsidiaries and their affiliates, Southland has become a diversified industry leader with both public and private customers. The majority of our customers are located in the United States.

In the second quarter of 2023, Southland decided to discontinue certain types of projects in its Materials & Paving business line (“M&P”) and sold assets related to producing large scale concrete and asphalt. M&P is reported in the Transportation segment. The Company will not be pursuing production of concrete and asphalt products for use on self-performed paving projects where the majority of the scope of work contains large-scale concrete and asphalt production or sale of asphalt and concrete products to third parties. This operational shift will allow the Company to better focus its resources on more profitable lines of business. The Company has concluded this action with M&P does not qualify for Discontinued Operations treatment and presentation as it does not represent a strategic shift in the Company’s business.

As previously announced, on May 25, 2022, Legato Merger Corp. II, a Delaware corporation (“Legato II”), entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Legato Merger Sub Inc., a Delaware corporation and wholly owned subsidiary of Legato II (“Merger Sub”), and Southland Holdings LLC, a Texas limited liability company (“Southland LLC”).

On February 14, 2023 (the “Closing Date”), as contemplated by the Merger Agreement, Merger Sub merged with and into Southland LLC, with Southland LLC surviving the merger as a wholly owned subsidiary of Legato II (the “Merger”). The transactions contemplated by the Merger Agreement are referred to herein collectively as the “Business Combination.” In connection with the Business Combination, Legato II changed its name to “Southland Holdings, Inc.”

The Merger was accounted for as a reverse recapitalization with Southland LLC as the accounting acquirer and Legato II as the acquired company for accounting purposes. Accordingly, all historical financial information presented in the consolidated financial statements represents the accounts of Southland and its subsidiaries as if Southland had been the predecessor Company.

COVID-19 Considerations

Certain impacts to public health conditions particular to the coronavirus (“COVID-19”) outbreak have had a significant negative impact on our operations and profitability. The continuing extent of the impact to our financial performance will depend on future developments, including (i) the duration and spread of the outbreak, (ii) the restrictions and advisories, (iii) the effects on the financial markets, and (iv) the effects on the economy overall, all of which are highly uncertain and cannot be predicted. If our financial performance is impacted because of these developments for an extended period, our results may be materially adversely affected. We cannot anticipate how the potential widespread distribution of a vaccine will mitigate this impact on either COVID-19 or on future variants of the disease.

Under the provision of the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”), employers were eligible for a refundable employee retention credit subject to certain criteria. As of December 31, 2022, the Companies had filed a claim with the IRS and received a refund of $2.4 million in 2023.

​

6

Table of Contents

2. Basis of Presentation

Consolidated U.S. GAAP Presentation

These interim unaudited condensed consolidated financial statements have been prepared in conformity with United States generally accepted accounting principles (“GAAP”). The Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) contains guidance that form GAAP. New guidance is released via Accounting Standards Update (“ASU”).

The unaudited condensed consolidated financial statements have been prepared by us pursuant to the rules and regulations of the SEC regarding interim financial reporting. Accordingly, certain information and footnote disclosures required by GAAP for complete financial statements have been condensed or omitted in accordance with such rules and regulations. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation of the unaudited condensed consolidated financial statements have been included. These unaudited condensed consolidated financial statements should be read in conjunction with our Annual Report which was filed on Form 10-K on March 4, 2024.

The accompanying consolidated balance sheet and related disclosures as of December 31, 2023, have been derived from the Form 10-K filed on March 4, 2024. The Company’s financial condition as of March 31, 2024, and operating results for the three months ended March 31, 2024, are not necessarily indicative of the financial conditions and results of operations that may be expected for any future interim period or for the year ending December 31, 2024.

The unaudited condensed consolidated financial statements include the accounts of Southland Holdings, Inc., and our majority-owned and controlled subsidiaries and affiliates. All significant intercompany transactions are eliminated within the consolidations process. Investments in non-construction related partnerships and less-than-majority owned subsidiaries that we do not control, but where we have significant influence are accounted for under the equity method. Certain construction related joint ventures and partnerships that we do not control, nor do we have significant influence are accounted for under the equity method for the balance sheet and the proportionate consolidation method for the statement of operations.

Use of Estimates

The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amount of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Management periodically evaluates estimates used in the preparation of the consolidated financial statements for continued reasonableness. It is reasonably possible that changes may occur in the near term that would affect our estimates with respect to revenue recognition, the allowance for credit losses, recoverability of unapproved contract modifications, deferred tax assets, and other accounts for which estimates are required.

Cash, Cash Equivalents, and Restricted Cash

We consider all highly liquid instruments purchased with a maturity of three months or less as cash equivalents. We maintain our cash in accounts at certain financial institutions. The majority of our balances exceed federally insured limits.

We have not experienced any losses in these accounts, and we do not believe they are exposed to any significant credit risk.

Restricted cash and cash equivalents consist of amounts held in accounts in our name at certain financial institutions. These accounts are subject to certain control provisions in favor of various surety and insurance companies for purposes of compliance and security perfections.

​

7

Table of Contents

​	​	​	​	​	​
(Amounts in thousands)	March 31, 2024			December 31, 2023
Cash and cash equivalents at beginning of period	$	49,176	​	$	57,915
Restricted cash at beginning of period		14,644	​		14,076
Cash, cash equivalents, and restricted cash at beginning of period	$	63,820	​	$	71,991
​	​	​	​	​	​
Cash and cash equivalents at end of period	$	31,239	​	$	49,176
Restricted cash at end of period		15,278	​		14,644
Cash, cash equivalents, and restricted cash at end of period	$	46,517	​	$	63,820

​

Goodwill and Indefinite-Lived Intangibles

Goodwill and indefinite-lived intangibles are tested for impairment annually in the fourth quarter, or more frequently if events or circumstances indicate that goodwill or indefinite-lived intangibles may be impaired. We evaluate goodwill at the reporting unit level (operating segment or one level below an operating segment). We identify our reporting unit and determine the carrying value of the reporting unit by assigning the assets and liabilities, including the existing goodwill and indefinite-lived intangibles, to the reporting unit. Our reporting units are based on our organizational and reporting structure. We currently identify three reporting units. We begin with a qualitative assessment using inputs based on our business, our industry, and overall macroeconomic factors. If our qualitative assessment deems that the fair value of a reporting unit is more likely than not less than its carrying amount, we then complete a quantitative assessment to determine the fair value of the reporting unit and compare it to the carrying amount of the reporting unit. During the three months ended March 31, 2024 and 2023, based on the results of our qualitative assessments which determined that it was more likely than not that the fair value of the reporting units exceeded the carrying amounts and that the fair value of the indefinite-lived intangible assets exceeded the carrying amounts, we did not complete quantitative assessments, and we did not record any impairment of goodwill or indefinite-lived intangible assets.

Valuation of Long-Lived Assets

We review long-lived assets, including finite-lived intangible assets subject to amortization, for impairment upon the occurrence of events or changes in circumstances that would indicate that the carrying value of the asset or group of assets may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset or group of assets to the future net cash flows expected to be generated by the asset or group of assets. If such assets are not considered to be fully recoverable, any impairment to be recognized is measured by the amount by which the carrying amount of the asset or group of assets exceeds its respective fair value. Assets to be disposed of are reported at the lower of the carrying amount or fair value less costs to sell.  During the three months ended March 31, 2024 and 2023, we did not identify any triggering events that would require a quantitative assessment.

Accounts Receivable, Net

We provide an allowance for credit losses, which is based upon a review of outstanding receivables, historical collection information, existing economic conditions, and future expectations. Normal contracts receivables are typically due 30 days after the issuance of the invoice. Retainages are due 30 days after completion of the project and acceptance by the contract owner. Warranty retainage receivables are typically due two years after completion of the project and acceptance by the contract owner. Receivables past due more than 120 days are considered delinquent. Delinquent receivables are written off based on individual credit evaluations and specific circumstances of the customer.

As of March 31, 2024, and December 31, 2023, we had an allowance for credit losses of $1.2 million and $1.3 million, respectively.

Recently Issued Accounting Pronouncements

In August 2023, the FASB issued ASU 2023-05, “Business Combinations-Joint Venture Formations (Subtopic 805-60): Recognition and Initial Measurement” (“ASU 2023-05”), which requires that a joint venture apply a new basis of accounting upon formation. As a result, a newly formed joint venture, upon formation, would initially measure its assets and liabilities at fair value. ASU 2023-05 is effective prospectively for all joint venture formations with a formation date on or after January 1, 2025. We plan to adopt ASU 2023-05 in the first quarter of 2025, but do not expect the adoption to have a material impact on our consolidated financial statements.

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Table of Contents

In October 2023, the FASB issued ASU 2023-06 “Codification Amendments in Response to the SEC’s Disclosure Update and Simplification Initiative,” which amends GAAP to include 14 disclosure requirements that are currently required under SEC Regulation S-X or Regulation S-K. Each amendment will be effective on the date on which the SEC removes the related disclosure requirement from SEC Regulation S-X or Registration S-K. The Company has evaluated the new standard and determined that it will have no material impact on its consolidated financial statements or disclosures since the Company is already subject to the relevant SEC disclosure requirements.

In November 2023, FASB issued ASU 2023-07, "Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures" ("ASU 2023-07"), which requires expanded disclosure of significant segment expenses and other segment items on an annual and interim basis. ASU 2023-07 is effective for us for annual periods beginning after January 1, 2024 and interim periods beginning after January 1, 2025. We are currently evaluating the impact ASU 2023-07 will have on our consolidated financial statements and related disclosures.

On December 14, 2023, the FASB issued ASU 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures,” which established new income tax disclosure requirements. Public business entities must apply the guidance to annual periods beginning after December 15, 2024. We have not elected to early adopt this standard. We are currently evaluating the impact ASU 2023-09 will have on our consolidated financial statements and related disclosures.

Recent SEC Rules

In March 2024, the SEC adopted the final rule under SEC Release No. 33-11275, The Enhancement and Standardization of Climate-Related Disclosures for Investors. Unless legal challenges to the rule prevail, this rule will require registrants to disclose certain climate-related information in registration statements and annual reports, and the revisions to Regulation S-X would apply to our financial statements beginning with our fiscal year ending December 31, 2025. We are currently assessing the effect of these new rules on our condensed consolidated financial statements and related disclosures.

Significant Accounting Policies

The significant accounting policies followed by the Company are set forth in Note 2 to the 10-K filed on March 4, 2024, and contained elsewhere herein, other than the policy for warrants, which is included below. For the three months ended March 31, 2024, there were no significant changes in our use of estimates or significant accounting policies.

Warrants

The Company accounts for warrants as either equity-classified or liability-classified instruments based on an assessment of the instruments’ specific terms and applicable authoritative guidance in FASB ASC 480, “Distinguishing Liabilities from Equity” (“ASC 480”), and ASC 815, “Derivatives and Hedging” (“ASC 815”). The assessment considers whether the instruments are freestanding financial instruments pursuant to ASC 480, meet the definition of a liability pursuant to ASC 480, and whether the instruments meet all of the requirements for equity classification under ASC 815, including whether the instruments are indexed to the Company’s own common shares and whether the instrument holders could potentially require “net cash settlement” in a circumstance outside of the Company’s control, among other conditions for equity classification. This assessment, which requires the use of professional judgment, was conducted at the time of warrant issuance and as of each subsequent quarterly period end date while the instruments are outstanding. The Company has concluded that the public warrants and private warrants issued pursuant to the warrant agreement qualify for equity accounting treatment. 

​

3. Recapitalization

As discussed in Note 1 – Description of Business, on the Closing Date, the Company issued 33,793,111 shares of common stock to the former members of Southland (“Southland Members”) in exchange for their membership interests in Southland (“Southland Membership Interests”). Southland received net proceeds of $17.1 million. Transaction costs of $9.9 million directly related to the Merger, are included in additional paid-in capital in the condensed consolidated balance sheet as of March 31, 2024.

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Table of Contents

Prior to the Merger, Southland LLC declared a $50.0 million dividend to be payable to Southland Members, which is recorded in other noncurrent liabilities on the condensed consolidated balance sheets. Southland Members, in lieu of cash payment, agreed to receive a promissory note for payment in the future. The notes have a four-year term and accrue interest at 7.0%. Southland, at its discretion, may make interim interest and principal payments during the term.

Immediately after giving effect to the Business Combination, there were 44,407,831 shares of common stock and 14,385,500 warrants, each exercisable for a share of common stock at an exercise price of $11.50 per share (including public and private placement warrants) (each a “Warrant” and together, collectively, the “Warrants”), outstanding.

Earnout Shares

Pursuant to the Merger Agreement, Southland Members have the potential to be issued additional consideration of up to 10,344,828 shares of common stock for attaining certain performance targets for the years ended December 31, 2022, and December 31, 2023. On April 27, 2023, Southland issued 3,448,283 shares of common stock to the Southland Members pursuant to the attainment of the 2022 Base Target (as defined in the Merger Agreement).

4. Fair Value Investments

Fair value of investments measured on a recurring basis as of March 31, 2024, and December 31, 2023, were as follows:

​

​	​	​	​	​	​	​	​	​	​	​	​
​	As of
​	March 31, 2024
(Amounts in thousands)	Fair Value			Level 1			Level 2			Level 3
Marketable Securities	​			​			​			​
Common stocks	$	—	​	$	—	​	$	—	​	$	—
Total		—	​		—	​		—	​		—
Investments Noncurrent			​			​			​
Private equity		3,120	​		—	​		—	​		3,120
Total noncurrent		3,120	​		—	​		—	​		3,120
Overall Total	$	3,120	​	$	—	​	$	—	​	$	3,120

​

​	​	​	​	​	​	​	​	​	​	​	​
​	As of
​	December 31, 2023
(Amounts in thousands)	Fair Value			Level 1			Level 2			Level 3
Marketable Securities	​			​			​			​
Common stocks	$	—	​	$	—	​	$	—	​	$	—
Total		—	​		—	​		—	​		—
Investments Noncurrent			​			​			​
Private equity		3,235	​		—	​		—	​		3,235
Total noncurrent		3,235	​		—	​		—	​		3,235
Overall Total	$	3,235	​	$	—	​	$	—	​	$	3,235

​

​

​

5. Revenue

Revenue is recognized over time using the input method in accordance with ASC 606, measured by the percentage of cost incurred to date to estimated total cost for each contract. This method is used because we believe expended cost to be the best available measure of progress on contracts.

Our contracts are primarily in the form of firm fixed-price and fixed-price per unit. A large portion of our contracts have scope defined adequately, which allows us to estimate total contract value upon the signing of a new contract. Upon signing a new contract, we allocate the total consideration across various contractual promises to transfer a distinct good or service to a customer. These are grouped into specific performance obligations. This process requires significant management judgement. Most of our contracts have a single performance obligation. For contracts with multiple performance obligations, we allocate the total transaction price based on the estimated standalone selling price, which is the total project costs plus a budgeted margin percentage, for each of the performance obligations.

10

Table of Contents

Revenue is recognized when, or as, the performance obligations are satisfied. Our contracts do not include a significant financing component. Costs to obtain contracts are generally not significant and are expensed in the period incurred.

Estimating cost to complete of long-term contracts involves a significant amount of estimation and judgement. For long-term contracts, we use the calculated transaction price, estimated cost to complete the project, and the total costs incurred on the project to date to calculate the percentage of the project that is complete. The costs to complete the project and the transaction price can change due to unforeseen events that can either increase or decrease the margin on a particular project.

Our contract structure allows for variable consideration. A significant portion of this variable consideration comes in the form of change order requests and claims. Other variable consideration can include performance bonuses, incentives, liquidated damages, and other terms that can either raise or lower the total transaction price. We estimate variable consideration based on the probability of being entitled to collection of specific amounts. We include amounts that we believe we have an enforceable right to collect based on our probability of success with specific claims or contractual rights. Our estimates of total variable consideration rely on all available information about our customer including historical, current, and forecasted information.

Many of our contracts require contract modifications resulting from a change in contract scope or requirements. Change orders are issued to document changes to the original contract. We can have approved and unapproved change orders. Unapproved change orders are contract modifications for which we or our customers have not agreed to terms, scope and price. Contract modifications are necessary for many reasons, including but not limited to, changes to the contract specifications or design from the customer, modification to the original scope, changes to engineering drawings, or other required deviation from the original construction plan. Contract modifications may also be necessary for reasons including, but not limited to, other changes to the contract which may be out of our control, such as rain or other weather delays, incomplete, insufficient, inaccurate engineering drawings, different site conditions from information made available during the estimating process, or other reasons. An unapproved change order may turn into a formal claim if we cannot come to an agreement with the owner but are contractually entitled to recovery of costs and profits for work performed. Costs incurred related to contract modifications are included in the estimated costs to complete and are treated as project costs when incurred. Unless the contract modification is distinct from the other goods and services included within the project, the contract modification is accounted for as part of the existing contract. The effect of any modifications on the transaction price, and our measure of the percentage-of-completion on specific performance obligations for which the contract modification relates, is recognized as a cumulative catch-up adjustment to revenue recognized. In some cases, contract modifications may not be fully settled until after the completion of work as specified in the original contract.

We review and update our contract estimates regularly. Any adjustments in estimated profit on contracts is recognized under the cumulative catch-up method. Under this method, the cumulative impact of the profit adjustment is recognized in the period the adjustment is identified. Revenue and profit in future periods are then recognized using an updated estimate that uses inputs consisting of the estimated transaction price and the estimated remaining costs to be incurred on the project.

If a contract is deemed to be in a loss position, the projected loss is recognized in full, including reversal of any previously recognized margin, in the period in which the change in estimate is made. Losses are recognized as an accrued loss provision on the consolidated balance sheets in the accrued liabilities caption. For contract revenue after the date that the loss is accrued, the accrued loss provision is adjusted so that the gross profit for the contract remains zero in future periods, subject to future adjustments to the overall expected profit or loss as determined at such time. As of March 31, 2024 and December 31, 2023, we had $16.1 million and $17.3 million, respectively, in accrued loss provisions.

As of March 31, 2024 and December 31, 2023, we had $162.9 million and $139.6 million, respectively, of unapproved contract modifications included within our various projects’ transaction prices. These modifications are in negotiation with our customers or other third parties.

We estimate the likelihood of collection during the bidding process for new contracts. Customers with history of late or non-payment are avoided in the bidding process. We consider the necessity for write-down of receivable balances in conjunction with GAAP when evaluating our estimates of transaction price and estimated costs to complete our projects.

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Table of Contents

We bill our customers in conjunction with our contract terms. Our contracts have three main categories, (i) contracts that are billed based on a specific timeline, (ii) contracts that are billed upon the completion of certain phases of work, or milestones, and (iii) contracts that are billed as services are provided. Some of our contracts are billed following the recognition of certain revenue. This creates an asset on our consolidated balance sheets captioned “contract assets.” Other contracts’ schedules allow us to bill customers prior to recognizing revenue. These contracts create a liability on our consolidated balance sheets captioned “contract liabilities.”

We segregate our business into two reportable segments: Transportation and Civil. Our Chief Operating Decision Maker (“CODM”) uses these segments in order to operate the business. Our segments offer different specialty infrastructure services. Our CODM regularly reviews our operating and financial performance based on these segments. Each of our reportable segments is composed of similar business units that specialize in specialty infrastructure projects that are unique.

Our business is managed using revenue and gross profit primarily. Our CODM regularly uses this information to review operating results, plan future bids, allocate resources, target customers, and plan future growth and capital allocations. To determine reportable segment gross profit, certain allocations, including allocations of shared and indirect costs, such as facility costs, equipment costs, and indirect operating expenses, were made.

Our Civil segment is comprised of Oscar Renda Contracting, Inc., Mole Constructors, Inc., Southland Contracting, Inc., Southland Holdings, LLC, Renda Pacific, LLC, Southland Renda JV, Southland RE Properties, Oscar Renda Contracting Canada, Southland Mole of Canada, Southland Technicore Mole joint venture, and Southland Astaldi joint venture. This segment focuses on projects throughout North America that include the design and construction of water pipeline, pump stations, lift stations, water and wastewater treatment plants, concrete and structural steel, outfall, and tunneling.

Our Transportation segment is comprised of American Bridge, Heritage Materials, LLC, and Johnson Bros. Corporation. This segment operates throughout North America and specializes in services that include the design and construction of bridges, roadways, marine, dredging, ship terminals, and piers, and specialty structures and facilities.

Total assets by segment are not presented as our CODM, as defined by ASC 280, does not review or allocate resources based on segment assets. We do not have material intersegment revenue or gross profit. Joint ventures are classified into the segment with which the projects align.

Segment Revenue

Revenue by segment for the three months ended March 31, 2024 and 2023, was as follows:  

​

​	​	​	​	​	​	​	​	​	​	​
​	Three Months Ended									​
(Amounts in thousands)	March 31, 2024					March 31, 2023
​	​	​		% of Total		​	​		% of Total
Segment	Revenue		​	Revenue	​	Revenue		​	Revenue
Civil	$	84,273		29.3	%	$	72,989		26.6	%
Transportation		203,824		70.7	%		201,840		73.4	%
Total revenue	$	288,097		100.0	%	$	274,829		100.0	%

​

Segment Gross Profit

Gross profit by segment for the three months ended March 31, 2024 and 2023, was as follows:

​

​	​	​	​	​	​	​	​	​	​	​
​	Three Months Ended									​
(Amounts in thousands)	March 31, 2024					March 31, 2023
​	​			% of Segment		​	​		% of Segment
Segment	Gross Profit		​	Revenue	​	Gross Profit		​	Revenue
Civil	$	17,870		21.2	%	$	8,766		12.0	%
Transportation		2,551		1.3	%		10,177		5.0	%
Gross profit	$	20,421		7.1	%	$	18,943		6.9	%

​

Revenue earned outside of the United States was 26% and 23% for the three months ended March 31, 2024 and 2023, respectively.

​

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6. Debt

Long-term debt and credit facilities consisted of the following as of March 31, 2024, and December 31, 2023:

​

​	​	​	​	​	​
​	As of
(Amounts in thousands)	March 31, 2024			December 31, 2023
Secured notes	$	206,892	​	$	210,197
Mortgage notes		667	​		689
Revolving credit facility		95,000	​		90,000
Total debt		302,559	​		300,886
Unamortized deferred financing costs		(544)	​		(526)
Total debt, net		302,015	​		300,360
Less: Current portion		(46,425)	​		(48,454)
Total long-term debt	$	255,590	​		251,906

​

The weighted average interest rate on total debt outstanding as of March 31, 2024 and December 31, 2023, was 6.21% and 6.12%, respectively.

As of March 31, 2024, our fleet of equipment was subject to liens securing our debt.

In February 2024, the Company amended the revolving credit facility to restructure certain covenant levels through December 31, 2024.  In May 2024, the Company amended the revolving credit facility to extend the maturity to April 15, 2025 and a waiver was granted for certain debt covenants as of March 31, 2024. We are currently in compliance with all applicable debt covenants, as amended or waived. The Company projects to be in compliance with all applicable debt covenants through March 31, 2025.

Revolving Credit Facility

In July 2021, we entered into a revolving credit facility agreement with Frost Bank for $50.0 million. As of December 31, 2022, the revolving credit facility agreement had been amended and increased to $100.0 million. In August 2023, the revolving credit facility was extended through January 15, 2025 and we incurred $0.3 million in deferred financing costs. The revolving credit facility agreement bears interest on drawn balances at 1-month SOFR, subject to a floor of 0.90%, plus an applicable margin rate of 3.00%. The waiver granted for March 31, 2024 covenant non-compliance amended the revolving credit facility limit to $95.0 million, required a $5.0 million cash collateral deposit to be made by June 15, 2024, and extended maturity to April 15, 2025. As of March 31, 2024, $95.0 million was drawn on the revolving credit facility. The revolving credit facility is collateralized by certain real estate assets, unencumbered assets, and a junior lien position on certain assets of Southland.

​

Secured Notes

We enter into secured notes in order to finance growth within our business. In July 2023, we refinanced approximately $76.4 million of existing secured notes in exchange for a new equipment note in the amount of $113.5 million. The new equipment note is secured by specific construction equipment assets and has a five-year fully amortizing term at a fixed rate of 7.25%. We incurred $0.3 million as deferred financing cost in connection with the refinancing. The deferred financing costs are included in long-term debt on our consolidated balance sheets. Additionally, as part of the refinancing, we incurred a loss on extinguishment of debt of $0.6 million, which was included in other income, net on our consolidated statements of operations and $0.6 million as bank service charges in connection with the refinancing. As of March 31, 2024, we had outstanding secured notes expiring between April 2024 and March 2033. Interest rates on the secured notes range between 1.29% and 8.00%. The secured notes are collateralized by certain assets of Southland’s fleet of equipment.

Mortgage Notes

We enter into mortgage notes in order to finance growth within our business. As of March 31, 2024, we had mortgage notes expiring between October 2024 and February 2029. Interest rates on the mortgage notes range between 3.84% and 5.99%. The mortgage notes are collateralized by certain real estate owned by Southland.

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7. Commitments and Contingencies

Litigation

In the ordinary course of business, we and our affiliates are involved in various legal proceedings alleging, among other things, liability issues or breach of contract or tortious conduct in connection with the performance of services and/or materials provided, the outcomes of which cannot be predicted with certainty. We and our affiliates are also subject to government inquiries in the ordinary course of business seeking information concerning our compliance with government construction contracting requirements and various laws and regulations, the outcomes of which cannot be predicted with certainty.

Some of the matters in which we or our joint ventures and affiliates are involved may involve compensatory, punitive, or other claims or sanctions that, if granted, could require us to pay damages or make other expenditures in amounts that are not currently probable to be incurred or cannot currently be reasonably estimated. In addition, in some circumstances, our government contracts could be terminated, we could be suspended or incur other administrative penalties or sanctions, or payment of our costs could be disallowed. While any of our pending legal proceedings may be subject to early resolution as a result of our ongoing efforts to resolve the proceeding, whether or when any legal proceeding will be resolved is neither predictable nor guaranteed.

Accordingly, it is possible that future developments in such proceedings and inquiries could require us to (i) adjust existing accruals, or (ii) record new accruals that we did not originally believe to be probable or that could not be reasonably estimated. Such changes could be material to our financial condition, results of operations, and/or cash flows in any particular reporting period. In addition to matters that are considered probable for which the loss can be reasonably estimated, disclosure is also provided when it is reasonably possible and estimable that a loss will be incurred, when it is reasonably possible that the amount of a loss will exceed the amount recorded, or a loss is probable but the loss cannot be estimated.

Liabilities relating to legal proceedings and government inquiries, to the extent that we have concluded such liabilities are probable and the amounts of such liabilities are reasonably estimable, are recorded on the consolidated balance sheets. A certain number of the claims are insured but subject to varying deductibles, and a certain number of the claims are uninsured. The aggregate range of possible loss related to (i) matters considered reasonably possible, and (ii) reasonably possible amounts in excess of accrued losses recorded for probable loss contingencies was immaterial, as of March 31, 2024, and December 31, 2023. Our estimates of such matters could change in future periods.

Surety Bonds

We, as a condition for entering into a substantial portion of our construction contracts, had outstanding surety bonds as of March 31, 2024, and December 31, 2023. We have agreed to indemnify the surety if the surety experiences a loss on the bonds of any of our affiliates.

Self-Insurance

We are self-insured up to certain limits with respect to workers’ compensation, general liability and auto liability matters, and health insurance. We maintain accruals for self-insurance retentions based upon third-party data and claims history.

​

8. Income Taxes

Prior to the Merger in 2023, Southland LLC, and various domestic subsidiaries, elected to be taxed as an S-corporation, under the provisions of Subchapter S of the Internal Revenue Code. As such, their respective earnings were not subject to entity level income tax, but instead, the owners were liable for federal income taxes on their respective shares of the applicable income. American Bridge and Oscar Renda, two domestic subsidiaries of Southland LLC, had historically been taxed as separate C-corporation and their income subject to entity-level tax.

​

Following the closing of the Merger on February 14, 2023, Southland LLC, along with various domestic subsidiaries, elected to voluntarily revoke their S-corporation status effective January 1, 2023. As a result, Southland Holdings LLC, and their domestic subsidiaries, elected to file a consolidated corporate income tax return for the 2023 calendar year.

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Effective January 1, 2024 Southland Holdings LLC and subsidiary filing group elected to join the Southland Holdings, Inc. and Subsidiaries filing group to have all domestic corporate entities included within one consolidated federal income tax return for the 2024 calendar year.

​

The federal statutory tax rate is 21%. Southland’s effective tax rate was 36.9% for the three months ended March 31, 2024. The primary differences between the statutory rate and the effective rate were due to state income taxes including adjustments in the quarter for additional state refunds received previously not recorded and a change in state rate applied to deferred tax assets and liabilities. Additionally, as with previous periods, the Company has recorded income earned in a foreign jurisdiction with a zero tax rate; however, that foreign income is included within U.S taxable income through GILTI. Lastly, the Company has recorded an additional $0.3 million in calculated penalties and interest mainly related to the previously recorded uncertain tax position accrual related to 2020 U.S. federal net operating loss treatment.  

​

Southland’s effective tax rate was a negative 69.8% for the three months ended March 31, 2023. The primary difference between the statutory rate and the Company’s effective rate was due to the pre-tax loss and the change in the U.S consolidated filing structure effective January 1, 2023, as a result of the Merger.  This change in filing structure required recording deferred tax assets and liabilities related to entities previously not subject to income tax with $5.0 million being recorded to income tax expense for the three months ended March, 31 2023.  As the Merger did not require acquisition accounting under U.S. GAAP, the recording of these deferred tax assets and liabilities was recorded to current operations in accordance with the requirements under ASC 740.  Additionally, $1.1 million was recorded to income tax expense as of March 31, 2023 due to the change in the state effective tax rate applied to both American Bridge and Oscar Renda deferred tax assets and liabilities.  Lastly, as a result of the new U.S. consolidated filing structure, Southland is in a net deferred tax liability position for both federal and state income tax. As a result the U.S. and state deferred tax assets are considered to be more-likely-than-not realizable, and therefore a valuation allowance is not deemed necessary. The previously recorded valuation allowance related to American Bridge federal and state net deferred tax assets has been removed resulting with a benefit to income tax of $3.8 million recorded in the three months ended March 31, 2023.

​

Southland is in a net deferred tax asset position for both federal and state income tax mainly resulting from the capitalization of R&D expenses under IRC 174 offset by a deferred tax liability for the acceleration of depreciation for income tax purposes as for the three month period ended March 31, 2024. Southland is in a three-year cumulative book income position after adjusting for permanent and one-time items and is forecasting that the net deferred tax assets, are more-likely-than-not to be fully utilized.

​

9. Remaining Unsatisfied Performance Obligations

Remaining Unsatisfied Performance Obligations (“RUPO”) consists of two components: (1) unearned revenue and (2) awarded but not started. Unearned revenue includes the revenue we expect to record in the future on in-progress contracts, including 100% of our consolidated joint venture contracts and our proportionate share of unconsolidated joint venture contracts. Contracts that are awarded, but not yet started, are included in RUPO once a contract has been fully executed and/or we have received a formal “Notice to Proceed” from the project owner.

​

Although RUPO reflects business that we consider to be firm, deferrals, cancellations and/or scope adjustments may occur. RUPO is adjusted to reflect any known project cancellations, revisions to project scope and cost, foreign currency exchange fluctuations and project deferrals, as appropriate.

​

Fixed price contracts, particularly with federal, state and local government customers, are expected to continue to represent a majority of our total RUPO.

​

The following schedule shows the RUPO as of March 31, 2024, and December 31, 2023:

​

​	​	​	​	​	​
​	As of
(Amounts in millions)	March 31, 2024			March 31, 2023
Remaining Unsatisfied Performance Obligations	$	2,639	​	$	2,862

​

The Company expects to recognize approximately 42% of its RUPOs as revenue during the next twelve months, and the balance thereafter.

​

​

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10. Cost and Estimated Earnings on Uncompleted Contracts

Contract assets as of March 31, 2024, and December 31, 2023, consisted of the following:

​

​	​	​	​	​	​
​	As of
(Amounts in thousands)	March 31, 2024			December 31, 2023
Costs in excess of billings	$	539,407	​	$	525,588
Costs to fulfill contracts, net		30,713	​		28,614
Contract assets	$	570,120	​	$	554,202

​

Costs and estimated earnings on uncompleted contracts were as follows as of March 31, 2024, and December 31, 2023:

​

​	​	​	​	​	​
​	As of
(Amounts in thousands)	March 31, 2024			December 31, 2023
Costs incurred on uncompleted contracts	$	7,416,687	​	$	7,293,246
Estimated earnings		406,603	​		456,852
Costs incurred and estimated earnings		7,823,290	​		7,750,098
Less: billings to date		(7,469,066)	​		(7,417,861)
Costs to fulfill contracts, net		30,713	​		28,614
Net contract position	$	384,937	​	$	360,851

​

Our net contract position is included on the condensed consolidated balance sheets under the following captions:

​

​	​	​	​	​	​
​	As of
(Amounts in thousands)	March 31, 2024			December 31, 2023
Contract assets	$	570,120	​	$	554,202
Contract liabilities		(185,183)	​		(193,351)
Net contract position	$	384,937	​	$	360,851

​

As of March 31, 2024, and December 31, 2023, we had recorded $323.3 million and $306.4 million, respectively, related to claims. The classification of these amounts are represented on the consolidated balance sheets as of March 31, 2024, and December 31, 2023, as follows:

​

​	​	​	​	​	​
​	As of
(Amounts in thousands)	March 31, 2024			December 31, 2023
Costs in excess of billings	$	225,121	​	$	208,203
Investments		98,222	​		98,209
Claims asset total	$	323,343	​	$	306,412

​

​

On January 1, 2024, we had contract liabilities of $193.4 million, of which $93.5 million was recognized as revenue during the three months ended March 31, 2024.

​

On January 1, 2023, we had contract liabilities of $131.6 million, of which $74.2 million was recognized as revenue during the three months ended March 31, 2023.

​

​

11. Noncontrolling Interests Holders

Southland has several controlling interests including both joint ventures and partnerships. We have controlling interests and allocate earnings and losses in those entities to the noncontrolling interest holders based on our ownership percentages.

We owned an 84.7% interest in Oscar Renda Contracting, Inc. (“Oscar Renda”), as of March 31, 2024, and March 31, 2023.

We owned a 65.0% interest in the Southland Technicore Mole joint venture and a 70.0% interest in the Southland Astaldi joint venture as of March 31, 2024, and March 31, 2023.

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American Bridge entered into a joint venture with Commodore Maintenance Corporation, forming American Bridge/Commodore Joint Venture. According to the joint venture agreement, each of the parties is paid in accordance with its respective work performed and has no responsibility for losses incurred by the other party in performance of its work. At March 31, 2024, American Bridge was responsible for approximately 83% of the total contracted work.

We consolidated each of Oscar Renda Contracting, Inc., Southland Technicore Mole joint venture, Southland Astaldi joint venture, and American Bridge/Commodore Joint Venture as a result of our ownership percentage over the joint venture operations. We have fully consolidated revenue, cost of construction, and other costs on our unaudited condensed consolidated statements of operations and balances on the unaudited condensed consolidated balance sheets.

​

12. Related Party Transactions

​

Southland occasionally enters into subcontracts with a subcontractor in which certain employees hold a minority ownership. Cost of construction related to this subcontractor was $1.1 million and $0.5 million for the three months ended March 31, 2024 and 2023, respectively. Accounts payable balance due to this subcontractor was $2.6 million and $0.4 million as of March 31, 2024 and December 31, 2023. The terms on which Southland enters into agreements with this related party are substantially the same as terms the Company would enter into with a similar, unrelated party.

​

13. Share-Based Compensation

On May 24, 2022, the board of directors of Legato Merger Corp. II, a Delaware corporation, adopted Southland Holdings, Inc. 2022 Equity Incentive Plan (“2022 Plan”). A total of 2,220,392 shares of our common stock were reserved for issuance under the 2022 Plan of which 1,772,583 remained available as of March 31, 2024.

Restricted Stock Units (“RSUs”): RSUs are issued for compensatory purposes. RSU stock compensation cost is measured at our common stock’s fair value based on the market price at the date of grant. We recognize stock compensation cost only for RSUs that we estimate will ultimately vest. We estimate the number of shares that will ultimately vest at each grant date based on our historical experience and adjust stock compensation cost based on changes in those estimates over time.

A summary of the changes in our RSUs during the three months ended March 31, 2024 is as follows (shares in thousands):

​	​	​	​	​	​	​
​	​	​	March 31, 2024
​		RSUs			Weighted-Average Grant-Date Fair Value per RSU
Outstanding, beginning balance	​	​	173,333	​	$	8.94
Granted	​	​	238,606		​	5.16
Vested	​	​	(133,704)		​	6.62
Canceled	​	​	(41,568)	​	​	8.32
Outstanding, ending balance	​	​	236,667	​	$	6.54

​

Compensation cost related to RSUs was $0.7 million for the three months ended March 31, 2024, which is included in selling, general and administrative expenses on the consolidated statements of operations. As of March 31, 2024, there was $1.4 million of unrecognized compensation cost related to RSUs which will be recognized over a remaining weighted-average period of 3.3 years.

​

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14. Loss per Share

​

Basic and diluted net loss per share for the three months ended March 31, 2024 and 2023 consisted of the following (in thousands, except shares and per share amounts):

​	​	​	​	​	​
​	Three Months Ended
​	March 31, 2024		​	March 31, 2023
Numerator:	​		​	​
Net income (loss)	$	525	​	$	(4,266)
Less net income attributable to noncontrolling interests	​	931	​	​	398
Net loss attributable to common stockholders, basic and diluted	​	(406)	​	​	(4,664)
​	​	​	​	​	​
Denominator(1):	​		​	​
Weighted average common shares outstanding — basic	​	47,925,072	​	​	44,407,831
Weighted average common shares outstanding — diluted	​	47,925,072	​	​	44,407,831
​	​	​	​	​	​
Net loss per share — basic	$	(0.01)	​	$	(0.11)
Net loss per share — diluted	$	(0.01)	​	$	(0.11)

​

As the average market price of common stock for the three months ended March 31, 2024 did not exceed the exercise price of the Warrants, the potential dilution from the Warrants converting into 14,385,500 shares of common stock for both periods have been excluded from the number of shares used in calculating diluted net loss per share as their inclusion would have been antidilutive.

​

​

​

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

The following discussion and analysis contain forward-looking statements relating to future events or our future financial performance, which involve risk and uncertainties. Our actual results could differ materially from those anticipated in these forward-looking statements. Please see the discussion regarding forward-looking statements included under the “Cautionary Note Regarding Forward-Looking Statements” section for a discussion of some of the uncertainties, risks, and assumptions associated with these statements.

The following discussion and analysis present information that we believe is relevant to an assessment and understanding of our condensed consolidated balance sheets, statements of cash flows, and results of operations. This information should be read in conjunction with the condensed consolidated financial statements and the notes thereto.

Overview

Southland is a diverse leader in specialty infrastructure construction with roots dating back to 1900. The end markets for which we provide services cover a broad spectrum of specialty services within infrastructure construction. We design and construct projects in the bridges, tunnels, communications, transportation and facilities, marine, steel structures, water and wastewater treatment, and water pipelines end markets.

Southland is based in Grapevine, Texas. We are the parent company of Johnson Bros. Corporation, American Bridge Company, Oscar Renda Contracting, Southland Contracting, Mole Constructors, and Heritage Materials. With the combined capabilities of these six subsidiaries, Southland has become a diversified industry leader with projects spanning North America in various end markets.

Key Factors Affecting Results of Operations

Business Environment

Our Civil segment operates throughout North America and specializes in services that include the design and construction of water pipeline, pump stations, lift stations, water and wastewater treatment plants, concrete and structural steel, outfall, and tunneling.

Our Transportation segment operates throughout North America and specializes in services that include the design and construction of bridges, roadways, marine, dredging, ship terminals and piers, and specialty structures and facilities. Our Transportation segment is responsible for the construction of bridges and structures including many of the most recognizable bridges, convention centers, sports stadiums, marine facilities, and ferris wheels in the world.

Both our Civil and Transportation segments continue to identify new opportunities to grow our business, and the future outlook of the end markets we serve remains positive. Although risk and uncertainty exist, including, but not limited to, the items addressed within our forward-looking statements and risk factors, we believe that we are well positioned to compete on new infrastructure projects in both the public and private sectors. We believe that we have the operational excellence, reputation, and technical skill to continue to grow our business.

Market Trends and Uncertainties

In both our Transportation and Civil segments, we have competitors within the individual markets and geographic areas in which we operate, ranging from small, local companies to larger regional, national, and international companies. Although the construction business is highly competitive, there are few, if any, companies which compete in all of our 33 market areas, both geographically and from an end market perspective. The degree and type of competition is influenced by the type and scope of construction projects within individual markets. Equipment ownership and ability to self-perform across numerous disciplines are two of our significant competitive advantages. We believe that the primary factors influencing competition in our industry are price, reputation for quality, safety, schedule certainty, relevant experience, availability of field supervision and skilled labor, machinery and equipment, financial strength, as well as knowledge of local markets and conditions. We believe that we can compete favorably in all of these factors.

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Many of our competitors have the ability to perform work in either the private or public sectors. When opportunities for work in one sector are reduced, competitors tend to look for opportunities in the other sector. This migration has the potential to reduce revenue growth and/or increase pressure on gross profit margins.

We have seen an increase in demand for specialty construction projects in recent years at the federal, state, and local level. We anticipate the further spending on infrastructure related to economic stimulus spending including the Infrastructure Investment and Jobs Act that was passed in 2021, and other federal, state, or local initiatives.

We believe that the combination of our experience, reputation, and technical expertise places us at the top among companies of our size. This combination of skills has allowed us to pursue complex projects with fewer competitors.

Seasonality, Cyclicality, and Variability

The results of our operations are subject to quarterly variations. Much of the variation is the result of weather, particularly rain, ice, snow, heat, wind, and named storms, which can impact our ability to perform construction activities. These weather impacts can affect revenue and profitability in either of our business segments. Any quarter can be affected either negatively or positively by atypical weather patterns in any part of North America, or other areas in which we operate. Traditionally, our first quarter is the most weather-affected; however, this may or may not necessarily be true in future periods.

Our business may also be affected by overall economic market conditions, including but not limited to declines in spending by project owners, delays in new projects, by changes in client schedules, or for other reasons.

Critical Accounting Policies

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent liabilities as of the date of the financial statements and the reported amounts of revenues and expenses earned and incurred, respectively, during the reporting period. Critical accounting estimates are fundamental to the portrayal of both our financial condition and results of operations and often require difficult, subjective, and complex estimates and judgments. We evaluate our estimates and assumptions on an ongoing basis using historical experience and other factors, including the current economic environment, which we believe to be reasonable under the circumstances. We adjust such estimates and assumptions when facts and circumstances dictate. As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates. Changes in these estimates resulting from the continuing changes in the economic environment will be reflected in the financial statements in future periods. With respect to our critical accounting policies and estimates, there have been no material developments or changes from the policies and estimates discussed in our annual disclosures.

More information about our accounting policies can be found in Note 2 of our audited financial statements, and Management’s Discussion and Analysis, for the year ended December 31, 2023 on our Annual Report on Form 10-K, as originally filed with the SEC on March 4, 2024.

Materials and Paving

In the second quarter of 2023, Southland decided to discontinue certain types of projects in its Materials & Paving business line (“M&P”) and sold assets related to producing large scale concrete and asphalt. M&P is reported in the Transportation segment. In an effort to wind down this component of its Transportation segment and reallocate resources towards core operations, the Company sold various materials production assets. The Company has concluded this action with M&P does not qualify for Discontinued Operations treatment and presentation under ASC 205-20 as it does not represent a strategic shift in the Company’s business.  For the three months ended March 31, 2024, M&P contributed $38.6 million to revenue and $10.4 million in gross loss. This compares to $58.1 million to revenue and $10.6 million to gross loss for the three months ended March 31, 2023. As of March 31, 2024, approximately 7.7% of Southland’s backlog was in M&P, and Southland estimates this work to be substantially completed in the next 15 months.

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Results of Operations

The following table sets forth summary financial information for the three months ended March 31, 2024 and 2023:

​	​	​	​	​	​	​
​	​	Three Months Ended
(Amounts in thousands)	​	March 31, 2024			March 31, 2023
Revenue	​	$	288,097	​	$	274,829
Cost of construction	​		267,676	​		255,886
Gross profit	​		20,421	​		18,943
Selling, general, and administrative expenses	​		14,394	​		15,571
Operating income	​		6,027	​		3,372
Loss on investments, net	​		(76)	​		(32)
Other income (loss), net	​		536	​		(2,599)
Interest expense	​		(5,655)	​		(3,254)
Earnings (losses) before income taxes	​		832	​		(2,513)
Income tax expense	​		307	​		1,753
Net income (loss)	​		525	​		(4,266)
Net income attributable to noncontrolling interests	​		931	​		398
Net loss attributable to Southland Stockholders	​	$	(406)	​	$	(4,664)

​

Revenue

Revenue for the three months ended March 31, 2024, was $288.1 million, an increase of $13.3 million, or 4.8%, compared to the three months ended March 31, 2023. The increase was primarily attributable to an $11.3 million increase of revenue in our Civil segment and a $2.0 million increase in revenue in our Transportation segment.

Cost of construction

Cost of construction for the three months ended March 31, 2024, was $267.7 million, an increase of $11.8 million, or 4.6%, compared to the three months ended March 31, 2023. The increase was primarily attributable to a $2.2 million increase in our Civil segment and a $9.6 million increase in our Transportation segment.

Gross profit

Gross profit for the three months ended March 31, 2024, was $20.4 million, an increase of $1.5 million, or 7.8%, compared to the three months ended March 31, 2023. The increase was primarily attributable to a $9.1 million increase in our Civil segment offset by a $7.6 million decrease in our Transportation segment.

Selling, general, and administrative expenses

Selling, general, and administrative expenses for the three months ended March 31, 2024, were $14.4 million, a decrease of $1.2 million, or 7.6%, compared to the three months ended March 31, 2023. The decrease was due to a reduction of public company costs and incentive compensation expense in 2024 compared to the same period in 2023.

Interest expense

Interest expense for the three months ended March 31, 2024, was $5.7 million, an increase of $2.4 million, or 73.8%, compared to the three months ended March 31, 2023. The difference is primarily driven by an increase in external borrowings compared to the prior year and higher interest rates on the additional borrowings. We also experienced increased borrowing costs on our revolving credit facility compared to the same period in 2023.

Income tax expense

Income tax expense for the three months ended March 31, 2024, was $0.3 million, or an effective rate of 36.9%. The primary differences between the federal statutory tax rate of 21% and the effective rate were state income taxes, federal tax credits, the income earned in foreign jurisdictions with a zero tax rate; however that foreign income is included

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within U.S. taxable income through GILTI, and finally the impact of worldwide forecast on the interim calculation under ASC 740.

​

Income tax expense for the three months ended March 31, 2023, was $1.8 million, or an effective rate of negative 69.8%. The difference from the federal statutory tax rate of 21% was driven by the pre-tax loss, change in the U.S. consolidated filing structure as a result of the Merger, and elections made by various subsidiaries to voluntarily revoke their S-corporation status effective January 1, 2023.

​

Segment Results

​

The following table sets forth segment information for the three months ended March 31, 2024 and 2023:

​

​	​	​	​	​	​	​	​	​	​	​	​
​	​	Three Months Ended
(Amounts in thousands)	​	March 31, 2024					March 31, 2023
​	​	​	​		% of Total		​	​		% of Total
Segment	​	Revenue		​	Revenue	​	Revenue		​	Revenue
Civil	​	$	84,273		29.3	%	$	72,989		26.6	%
Transportation	​		203,824		70.7	%		201,840		73.4	%
Total revenue	​	$	288,097		100.0	%	$	274,829		100.0	%

​

​	​	​	​	​	​	​	​	​	​	​	​
​	​	Three Months Ended
(Amounts in thousands)	​	March 31, 2024				​	March 31, 2023
​	​	​	​		% of Segment		​	​		% of Segment
Segment	​	Gross Profit			Revenue	​	Gross Profit			Revenue	​
Civil	​	$	17,870		21.2	%	$	8,766		12.0	%
Transportation	​		2,551		1.3	%		10,177		5.0	%
Gross profit	​	$	20,421		7.1	%	$	18,943		6.9	%

​

Civil

Revenue for the three months ended March 31, 2024, was $84.3 million, an increase of $11.3 million, or 15.5%, compared to the three months ended March 31, 2023. This was primarily attributable to increased revenues of $7.5 million from a project in Colorado and $7.1 million from a water pipeline project in the Southwest, for the three months ended March 31, 2024 versus the same period in 2023.

​

Gross profit for the three months ended March 31, 2024, was $17.9 million, or 21.2% of segment revenue, compared to $8.8 million, or 12.0% of segment revenue, for the three months ended March 31, 2023. The primary drivers to the increase of $9.1 million were increased profit contribution of $2.4 million for a project in Colorado, $2.2 million from a water project on the east coast and $3.8 million from two water projects in the Southwest for the three months ended March 31, 2024 versus the same period in 2023.

​

Transportation

Revenue for the three months ended March 31, 2024, was $203.8 million, an increase of $2.0 million, or 1.0%, compared to the three months ended March 31, 2023. The increase was primarily attributable to increased revenues of $15.0 million and $7.6 million from a project in the Bahamas and a bridge project on the east coast, respectively, in the three months ended March 31, 2024 versus the same period in 2023. These increases were offset by decreased revenue from the M&P line of $19.5 million in the three months ended March 31, 2024 versus the same period in 2023.

​

Gross profit for the three months ended March 31, 2024, was $2.6 million, or 1.3% of segment revenue, compared to gross profit of $10.2 million, or 5.0% of segment revenue, for the three months ended March 31, 2023. The primary contributions to the decrease of $7.6 million was a decrease in profitability of $7.2 million from a bridge project in the Midwest, for the three months ended March 31, 2024 versus the same period in 2023.

​

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Key Business Metrics

 

Non-GAAP Financial Measures

​

In addition to our results determined in accordance with GAAP, we believe the following non-GAAP measures are useful in evaluating our operational performance. We use the following non-GAAP measures to evaluate our ongoing operations and for internal planning and forecasting purposes. We believe that the non-GAAP financial information may be helpful in assessing our operating performance and facilitates an alternative comparison among fiscal periods. The non-GAAP financial measures are not, and should not be viewed as, a substitute for GAAP reporting measures.

​

EBITDA and Adjusted EBITDA

​

In our industry, it is customary to manage our business using earnings before interest expense, income taxes, depreciation and amortization (“EBITDA”). EBITDA assists management and the board of directors and may be useful to investors in comparing our operating performance consistently over time as it removes the impact of our capital structure and expenses that do not relate to our core operations.

​

Additionally, it is also customary to manage our business using adjusted EBITDA, which may include adjustments such as, but is not limited to, certain non-cash charges, stock-based compensation, and other one-time income or expenses (“Adjusted EBITDA”). Adjusted EBITDA is intended as a supplemental measure of our performance that is neither required by, nor presented in accordance with, GAAP. We believe that the use of Adjusted EBITDA provides an additional tool for investors to use in evaluating ongoing operating results and trends and in comparing our financial measures with those comparable companies, which may present similar non-GAAP financial measures to investors. However, you should be aware that, when evaluating Adjusted EBITDA, we may have future activities similar to those excluded when calculating these measures. In addition, our presentation of these measures should not be construed as an inference that our future results will be unaffected by unusual or non-recurring items. Our computation of Adjusted EBITDA may not be comparable to other similarly titled measures computed by other companies, because all companies may not calculate Adjusted EBITDA in the same fashion.

​

Because of these limitations, Adjusted EBITDA should not be considered in isolation or as a substitute for performance measures calculated in accordance with GAAP. We compensate for these limitations by relying primarily on our GAAP results and using Adjusted EBITDA on a supplemental basis. The reconciliation of net loss to Adjusted EBITDA below should be reviewed, and no single financial measure should be relied upon to evaluate our business. Below is a reconciliation of net loss to Adjusted EBITDA.

​

​	​	​	​	​	​
​	Three Months Ended
(Amounts in thousands)	March 31, 2024		​	March 31, 2023
Net loss attributable to Southland Stockholders	$	(406)	​	$	(4,664)
Depreciation and amortization		5,577	​		8,560
Income tax expense		307	​		1,753
Interest expense		5,655	​		3,254
Interest income		(184)	​		(137)
EBITDA	​	10,949	​	​	8,766
Transaction related costs	​	—	​	​	1,035
Contingent earnout consideration non-cash expense reversal	​	—	​	​	2,936
Adjusted EBITDA	$	10,949	​	$	12,737

​

Backlog

 

We define contract backlog (“Backlog”) as a measure of the total amount of revenue remaining to be earned on projects that have been awarded. Backlog consists of two components: (1) unearned revenue and (2) contracts awarded but not started. Unearned revenue includes the revenue we expect to record in the future on in-progress contracts, including 100% of our consolidated joint venture contracts and our proportionate share of unconsolidated joint venture contracts. Contracts that are awarded, but not yet started, are included in Backlog once a contract has been fully executed and/or we have received a formal “Notice to Proceed” from the project owner.

  

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​	​	​
(Amounts in thousands)	​
Balance December 31, 2023	$	2,834,966
New contracts, change orders, and adjustments		100,893
Less: contract revenue recognized in 2024		(296,947)
Balance March 31, 2024	$	2,638,912

​

Backlog should not be considered a comprehensive indicator of future revenue as any of our contracts can be terminated by our customers on relatively short notice, and Backlog does not include future work for which we may be awarded or new awards for which we are awaiting an executed contract or an authorized “Notice to Proceed.” In the event of a cancelation, we are typically reimbursed for all of our costs through a specific contractual date, as well as our costs to demobilize from the project site. Costs may include preconstruction and engineering services as well as that of our subcontractors. Our contracts do not typically grant us rights to revenue reflected in Backlog. Projects may remain in the Backlog for extended periods of time as a result of schedule delays, regulatory requirements, project specific issues, or other reasons. Contract amounts from contracts where a transaction price cannot be reasonably estimated are not included within our Backlog amount.

 

Below is our Backlog by segment.

​

Civil

​	​	​
(Amounts in thousands)	​
Balance December 31, 2023	$	634,458
New contracts, change orders, and adjustments		74,142
Less: contract revenue recognized in 2024		(90,094)
Balance March 31, 2024	$	618,506

​

Transportation

​	​	​
(Amounts in thousands)	​
Balance December 31, 2023	$	2,200,508
New contracts, change orders, and adjustments		26,751
Less: contract revenue recognized in 2024		(206,853)
Balance March 31, 2024	$	2,020,406

​

Liquidity, Capital Commitments and Resources

Our principal sources of liquidity are cash generated from operations, funds from borrowings, and existing cash on hand. Our principal uses of cash typically include the funding of working capital obligations, debt service, and investment in machinery and equipment for our projects.

​

We will receive cash proceeds from the exercise of any Warrants. We believe the likelihood that Warrant holders will exercise their Warrants, and therefore the amount of cash proceeds that we would receive, is dependent upon the trading price of our common stock. On May 9, 2024, the closing price of our common stock was $4.69 per share. To the extent the market price of our common stock remains below the exercise price of $11.50 per share, we believe that Warrant holders will be unlikely to exercise their Warrants for cash, resulting in little or no cash proceeds to us for any such exercise. To the extent we receive any cash proceeds, we expect to use such proceeds for general corporate and working capital purposes, which would increase our liquidity. However, we do not expect to rely materially on the cash exercise of Warrants to fund our operations.

Based on historical results, losses and other negative impacts related to M&P and other certain projects, and delays in settling claims and change orders, our liquidity position has been negatively impacted. However, we believe anticipated future operating results, available cash, and other financing sources and initiatives will be adequate to meet our liquidity needs for at least the next twelve months, including any anticipated requirements for working capital, capital expenditures, and scheduled debt service.

​

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Our current and future liquidity is greatly dependent upon our operating results, which are largely determined by overall economic conditions and our current contracts and Backlog. Our liquidity could be adversely affected by a disruption in the availability of credit. If such a material adverse event were to occur, we may be unable to borrow under our revolving credit facility agreement or may be required to seek additional financing. In addition, we may be required to seek additional financing to refinance all or a significant portion of our existing debt on or prior to maturity. We may also seek to access the public or private equity markets to support our liquidity whenever required or conditions are favorable to us. We have filed a shelf registration statement on Form S-3 with the SEC that was declared effective by the SEC on April 8, 2024 (File No. 333-278008), which allows us to offer and sell up to an aggregate amount of $150.0 million of any combination of common stock, preferred stock, debt securities, warrants to purchase common stock, preferred stock or debt securities, or units of these securities from time to time. There can be no assurance that we will be able to raise additional capital or obtain additional financing when needed or on terms that are favorable to us.

We are exposed to market risks relating to fluctuations in interest rates and currency exchange risks. Significant changes in market conditions could cause interest rates to increase and have a material impact on the financing needed to operate our business.

​

The following table sets forth summary change in cash, cash equivalent and restricted cash for the three months ended March 31, 2024 and 2023:

​

​	​	​	​	​	​	​
​	​	Three Months Ended
(Amounts in thousands)	​	March 31, 2024			March 31, 2023
Net cash used in operating activities	​	$	(9,897)	​	$	(34,779)
Net cash (used in) provided by investing activities	​		(432)	​		48
Net cash (used in) provided by financing activities	​		(6,943)	​		6,101
Effect of exchange rate changes	​		(31)	​		190
Net change in cash, cash equivalents, and restricted cash	​	$	(17,303)	​	$	(28,440)

​

Net cash used in operating activities was $9.9 million during the three months ended March 31, 2024, compared to $34.8 million for the three months ended March 31, 2023. During the three months ended March 31, 2024, the primary drivers in cash used in operating activities were increases in accounts receivables and contract assets of $32.1 million and $16.2 million, respectively, offset by increases in accounts payable of $40.0 million. During the three months ended March 31, 2023, the primary drivers in cash used in operating activities were increases in accounts receivables and contract assets of $49.3 million and $30.3 million, respectively, offset by increases in accounts payable of $33.7 million and contract liabilities of $7.2 million.

​

Net cash used in investing activities was $0.4 million during the three months ended March 31, 2024, compared to $0.0 million provided by investing activities for the three months ended March 31, 2023. During the three months ended March 31, 2024, the primary drivers in cash used in investing activities were an increase in purchase of property and equipment of $3.1 million, offset by the increase in proceeds from sale of property and equipment of $2.7 million. During the three months ended March 31, 2023, the primary drivers in cash provided by investing activities were an increase in purchase of property and equipment of $1.2 million, offset by the increase in proceeds from sale of property and equipment of $1.3 million.

​

Net cash used in financing activities was $6.9 million for the three months ended March 31, 2024, compared to $6.1 million provided by financing activities for the three months ended March 31, 2023. During the three months ended March 31, 2024, the primary drivers in cash provided by financing activities were payments on notes payable and finance leases of $10.7 and $1.4 million, respectively, offset by borrowings on the revolving credit facility of $5.0 million. During the three months ended March 31, 2023, the primary drivers in cash provided by financing activities were payments on notes payable and finance leases of $12.4 million and $1.2 million, respectively, offset by $3.0 million in borrowings on the revolving credit facility and $17.1 million in proceeds from the Merger.

​

As of March 31, 2024, we had long-term debt of $302.0 million, of which $46.4 million is due within the next twelve months. In February 2024 and May 2024, the Company amended the revolving credit facility to restructure certain covenant levels. We are currently in compliance with all applicable debt covenants, as amended or waived.

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Revolving Credit Facility

In July 2021, we entered into a revolving credit facility agreement with Frost Bank for $50.0 million. As of December 31, 2022, the revolving credit facility agreement had been amended and increased to $100.0 million. In August 2023, the revolving credit facility was extended through January 15, 2025 and we incurred $0.3 million as deferred financing cost. The revolving credit facility agreement bears interest on drawn balances at 1-month SOFR, subject to a floor of 0.90%, plus an applicable margin rate of 2.10%. The waiver granted for March 31, 2024 covenant non-compliance amended the revolving credit facility limit to $95.0 million, required a $5.0 million cash collateral deposit to be made by June 15, 2024, and extended maturity to April 15, 2025. As of March 31, 2024, $95.0 million was drawn on the revolving credit facility.

​

Secured Notes

We enter into secured notes in order to finance growth within our business. In July 2023, we refinanced approximately $76.4 million of existing secured notes in exchange for a new equipment note in the amount of $113.5 million. The new equipment note is secured by specific construction equipment assets and has a five-year fully amortizing term at a fixed rate of 7.25%. We incurred $0.3 million as deferred financing cost and $0.6 million as bank service charges in connection with the refinancing. The deferred financing costs are included in long-term debt on our consolidated balance sheets. Additionally, as part of the refinancing, we incurred a loss on extinguishment of debt of $0.6 million, which was included in other income, net on our consolidated statements of operations. As of March 31, 2024, we had outstanding secured notes scheduled to expire between April 2024 and March 2033. Interest rates on the secured notes range between 1.29% and 8.00%.

Mortgage Notes

We also enter into mortgage notes in order to finance growth within our business. As of March 31, 2024, we had outstanding mortgage notes scheduled to expire between October 2024 and February 2029. Interest rates on the mortgage notes range between 3.84% and 5.99%.

​

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Item 3. Quantitative and Qualitative Disclosures About Market Risk

Not applicable.

Item 4. Controls and Procedures

​

Evaluation of Disclosure Controls and Procedures

It is management’s responsibility to establish and maintain adequate disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act. Disclosure controls and procedures are controls and other procedures of a company that are designed to ensure that information required to be disclosed by the company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to management, including the company’s principal executive and principal financial officers, as appropriate, to allow timely decisions regarding required disclosure.

Our management, including our Chief Executive Officer and our Chief Financial Officer, have reviewed and evaluated the effectiveness of our disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, as of the end of the period covered by this Quarterly Report. Following this review and evaluation, our management determined that as of the end of the period covered by this Quarterly Report, our disclosure controls and procedures were effective to ensure that information required to be disclosed in reports filed or submitted under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in SEC rules and forms, and is accumulated and communicated to management, including our Chief Executive Officer and our Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

Changes in Internal Control over Financial Reporting

There was no change in our internal control over financial reporting that occurred during the fiscal quarter ended March 31, 2024 covered by this Quarterly Report on Form 10-Q that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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PART II — OTHER INFORMATION

Item 1. Legal Proceedings

​

See Note 7 – “Commitments and Contingencies”, included in the notes to our unaudited condensed consolidated financial statements included under Part I of this Quarterly Report.

​

Item 1A. Risk Factors

​

Other than as set forth below, there have been no additional risk factors identified and no material changes with regard to the risk factors previously disclosed under “Item 1A. Risk Factors” to Part I of our Annual Report on Form 10-K as of the fiscal year ended December 31, 2023.

Item 5. Other Information

​

During the last fiscal quarter, none of our directors or officers adopted or terminated any “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as those terms are defined in Regulation S-K, Item 408.

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Item 6. Exhibits

​

​ ​
​
Exhibit No.	Description
2.1	Agreement and Plan of Merger, dated as of May 25, 2022, by and among the Company, Legato Merger Sub, Inc. and Southland Holdings, LLC (incorporated by reference to Exhibit 2.1 to the Company’s Current Report on Form 8-K filed with the SEC on May 25, 2022).
3.1	Second Amended and Restated Certificate of Incorporation of the Company (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed with the SEC on February 14, 2023).
3.2	Amended and Restated Bylaws of the Company (incorporated by reference to Exhibit 3.2 to the Company’s Current Report on Form 8-K filed with the SEC on February 14, 2023).
4.1	Specimen Warrant Certificate (incorporated by reference to Exhibit 4.3 to the Company’s Registration Statement on Form S-1 (File No. 333-260816) filed with the SEC on November 5, 2021).
4.2	Warrant Agreement between American Stock Transfer & Trust Company and the Company (incorporated by reference to Exhibit 4.1 to the Company’s Current Report on Form 8-K filed with the SEC on November 23, 2021).
4.3	Specimen Common Stock Certificate (incorporated by reference to Exhibit 4.2 to the Company’s Registration Statement on Form S-1 (File No. 333-260816) filed with the SEC on November 5, 2021).
31.1*	Certification of Principal Executive Officer pursuant to Exchange Act Rules 13a-14 and 15d-14, as adopted pursuant to Section 302 Sarbanes Oxley Act of 2002.
31.2*	Certification of Principal Financial Officer pursuant to Exchange Act Rules 13a-14 and 15d-14, as adopted pursuant to Section 302 Sarbanes Oxley Act of 2002.
32.1**	Certification of Principal Executive Officer pursuant to Section 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes Oxley Act of 2002.
32.2**	Certification of Principal Financial Officer pursuant to Section 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes Oxley Act of 2002.
101*	The following financial statements from the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2024, formatted in Inline XBRL: (i) Condensed Consolidated Balance Sheets (Unaudited); (ii) Condensed Consolidated Statements of Operations (unaudited); (iii) Condensed Consolidated Statements of Comprehensive Income (unaudited); (iv) Condensed Consolidated Statements of Equity (unaudited); (v) Condensed Consolidated Statements of Cash Flows (unaudited); and (vi) Notes to Condensed Consolidated Financial Statements (unaudited), tagged as blocks of text and including detailed tags.
104*	Cover Page Interactive Data File (formatted in Inline XBRL and contained in Exhibit 101).

​

*Filed herewith.

**Furnished herewith.

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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, duly authorized.

Date: May 13, 2024

​

​	​	​
​	SOUTHLAND HOLDINGS, INC.
​	​	​
​	By:	/s/ Frank Renda
​	Name:	Frank Renda
​	Title:	President, Chief Executive Officer
​	​	(Principal Executive Officer)
​	​	​
​	By:	/s/ Cody Gallarda
​	Name:	Cody Gallarda
​	Title:	Executive Vice President, Chief Financial Officer
​	​	(Principal Financial and Accounting Officer)
​	​	​

​

​

30

​

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER
PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Frank S. Renda certify that:

1.

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

2.

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

3.

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

4.

The registrant’s other certifying officer(s) 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(s) 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.

​	​
Dated:  May 13, 2024	By:	/s/ Frank S. Renda
​	​	Name:	Frank S. Renda
​	​	Title:	President and Chief Executive Officer
​	​	​	(Principal Executive Officer)

​

​

---

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER
PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Cody Gallarda, certify that:

1.

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

2.

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

3.

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

4.

The registrant’s other certifying officer(s) 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(s) 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.

​	​
Dated:  May 13, 2024	By:	/s/ Cody Gallarda
​	​	Name:	Cody Gallarda
​	​	Title:	Executive Vice President, Chief Financial Officer
​	​	​	(Principal Financial and Accounting Officer)

​

---

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

​

Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Southland Holdings, Inc. (the “Company”) hereby certifies, to the best of my knowledge, that:

(i)

the accompanying Quarterly Report on Form 10-Q of the Company for the fiscal quarter ended March 31, 2024 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934; and

(ii)

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

​	​
Dated:  May 13, 2024	By:	/s/ Frank S. Renda
​	​	Name:	Frank S. Renda
​	​	Title:	President and Chief Executive Officer
​	​	​	(Principal Executive Officer)

​

---

​

Exhibit 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Southland Holdings, Inc. (the “Company”) hereby certifies, to the best of my knowledge, that:

(i)

the accompanying Quarterly Report on Form 10-Q of the Company for the fiscal quarter ended March 31, 2024 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934; and

(ii)

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

​	​
Dated:  May 13, 2024	By:	/s/ Cody Gallarda
​	​	Name:	Cody Gallarda
​	​	Title:	Executive Vice President, Chief Financial Officer
​	​	​	(Principal Financial and Accounting Officer)

​

​

---

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2024	May 09, 2024
Document and Entity Information
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
Document Transition Report	false
Entity File Number	001-41090
Entity Registrant Name	Southland Holdings, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	87-1783910
Entity Address, Address Line One	1100 Kubota Dr.
Entity Address, City or Town	Grapevine
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	76051
City Area Code	817
Local Phone Number	293-4263
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Elected Not To Use the Extended Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		48,025,688
Entity Central Index Key	0001883814
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Amendment Flag	false
Common Stock
Document and Entity Information
Title of 12(b) Security	Common Stock, par value $0.0001 per share
Trading Symbol	SLND
Security Exchange Name	NYSEAMER
Redeemable warrants
Document and Entity Information
Title of 12(b) Security	Redeemable warrants, exercisable for shares of common stock at an exercise price of $11.50 per share
Trading Symbol	SLND WS
Security Exchange Name	NYSEAMER

Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 31,239	$ 49,176
Restricted cash	15,278	14,644
Accounts receivable, net	217,233	194,869
Retainage receivables	118,558	109,562
Contract assets	570,120	554,202
Other current assets	14,632	20,083
Total current assets	967,060	942,536
Property and equipment, net	102,773	102,150
Right-of-use assets	10,494	12,492
Investments - unconsolidated entities	124,628	121,648
Investments - limited liability companies	2,590	2,590
Investments - private equity	3,120	3,235
Deferred tax asset	11,896	11,496
Goodwill	1,528	1,528
Intangible assets, net	1,616	1,682
Other noncurrent assets	1,711	1,711
Total noncurrent assets	260,356	258,532
Total assets	1,227,416	1,201,068
Current liabilities
Accounts payable	202,441	162,464
Retainage payable	43,422	40,950
Accrued liabilities	117,714	124,667
Current portion of long-term debt	46,425	48,454
Short-term lease liabilities	11,096	14,081
Contract liabilities	185,183	193,351
Total current liabilities	606,281	583,967
Long-term debt	255,590	251,906
Long-term lease liabilities	4,985	5,246
Deferred tax liabilities	2,250	2,548
Long-term accrued liabilities	49,593	49,109
Other noncurrent liabilities	47,738	47,728
Total long-term liabilities	360,156	356,537
Total liabilities	966,437	940,504
Commitment and contingencies (Note 7)
Stockholders' equity
Preferred stock, $0.0001 par value, authorized 50,000,000 shares, none issued and outstanding as of March 31, 2024 and December 31, 2023
Common stock, $0.0001 par value, authorized 500,000,000 shares, 48,025,688 and 47,891,984 issued and outstanding as of March 31, 2024 and December 31, 2023, respectively	5	5
Additional paid-in-capital	270,801	270,330
Accumulated deficit	(19,659)	(19,253)
Accumulated other comprehensive loss	(1,832)	(1,460)
Total stockholders' equity	249,315	249,622
Noncontrolling interest	11,664	10,942
Total equity	260,979	260,564
Total liabilities and equity	$ 1,227,416	$ 1,201,068

Condensed Consolidated Balance Sheets (unaudited) (Parenthetical) - $ / shares	Mar. 31, 2024	Dec. 31, 2023
Condensed Consolidated Balance Sheets (unaudited) (Parenthetical)
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	48,025,688	47,891,984
Common stock, shares outstanding	48,025,688	47,891,984

Condensed Consolidated Statements of Operations (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Condensed Consolidated Statements of Operations (unaudited)
Revenue	$ 288,097	$ 274,829
Cost of construction	267,676	255,886
Gross profit	20,421	18,943
Selling, general, and administrative expenses	14,394	15,571
Operating income	6,027	3,372
Loss on investments, net	(76)	(32)
Other income (loss), net	536	(2,599)
Interest expense	(5,655)	(3,254)
Earnings (losses) before income taxes	832	(2,513)
Income tax expense	307	1,753
Net income (loss)	525	(4,266)
Net income attributable to noncontrolling interests	931	398
Net loss attributable to Southland Stockholders	$ (406)	$ (4,664)
Net loss per share attributable to common stockholders
Basic	$ (0.01)	$ (0.11)
Diluted	$ (0.01)	$ (0.11)
Weighted average shares outstanding
Basic	47,925,072	44,407,831
Diluted	47,925,072	44,407,831

Condensed Consolidated Statements of Comprehensive Loss (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Condensed Consolidated Statements of Comprehensive Loss (unaudited)
Net income (loss)	$ 525	$ (4,266)
Foreign currency translation adjustment, net of tax	(581)	506
Comprehensive loss, net of tax	(56)	(3,760)
Comprehensive income attributable to noncontrolling interest	722	400
Comprehensive loss attributable to Southland Stockholders	$ (778)	$ (4,160)

Condensed Consolidated Statements of Equity (unaudited) - USD ($) $ in Thousands	Preferred Stock Adjusted Balance	Preferred Stock	Common Stock Adjustment	Common Stock Adjusted Balance	Common Stock	AOCI Adjusted Balance	AOCI	Additional Paid-In Capital Adjustment	Additional Paid-In Capital Adjusted Balance	Additional Paid-In Capital	Accumulated Deficit	Members Capital Adjustment	Members Capital	Noncontrolling Interest Adjusted Balance	Noncontrolling Interest	Adjustment	Adjusted Balance	Total
Beginning balance at Dec. 31, 2022	$ 24,400	$ 24,400	$ 4	$ 4		$ (2,576)	$ (2,576)	$ 284,569	$ 284,569			$ (327,614)	$ 327,614	$ 10,446	$ 10,446	$ (43,041)	$ 316,843	$ 359,884
Beginning balance (shares) at Dec. 31, 2022	24,400,000	24,400,000	44,407,831	44,407,831
Preferred stock repurchase and dividends		$ (24,400)								$ (50,129)					(24)			(74,553)
Preferred stock repurchase and dividends (shares)		(24,400,000)
Issuance of post-merger earnout shares					$ 4					34,996								35,000
Distributions to joint venture partner															(110)			(110)
Net income (loss)											$ (4,664)				398			(4,266)
Other comprehensive income (loss)							504								2			506
Ending balance at Mar. 31, 2023					$ 8		(2,072)			269,436	(4,664)				10,712			273,420
Balance ending (shares) at Mar. 31, 2023					44,407,831
Beginning balance at Dec. 31, 2023					$ 5		(1,460)			270,330	(19,253)				10,942			$ 260,564
Beginning balance (shares) at Dec. 31, 2023					47,891,984
Issuance of shares - RSUs, net of tax					133,704													(206,000)
Issuance of shares - RSUs, net of tax										(206)
Share based compensation										677								$ 677
Net income (loss)											(406)				931			525
Other comprehensive income (loss)							(372)								(209)			(581)
Ending balance at Mar. 31, 2024					$ 5		$ (1,832)			$ 270,801	$ (19,659)				$ 11,664			$ 260,979
Balance ending (shares) at Mar. 31, 2024					48,025,688

Consolidated Statements of Cash Flows Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net income (loss)	$ 525	$ (4,266)
Adjustments to reconcile net income (loss) to net cash used in operating activities
Depreciation and amortization	5,577	8,560
Deferred taxes	(642)	(514)
Change in fair value of earnout liability		2,936
Share based compensation	677
Gain on sale of assets	(2,385)	(967)
Foreign currency remeasurement (gain) loss	64	(5)
Earnings from equity method investments	(1,907)	(3,242)
TZC investment present value accretion	(627)	(603)
Loss on trading securities, net	76	32
Changes in assets and liabilities:
Accounts receivable	(32,071)	(49,278)
Contract assets	(16,175)	(30,306)
Prepaid expenses and other current assets	5,450	119
Right-of-use assets	1,994	(1,764)
Accounts payable and accrued expenses	40,059	33,705
Contract liabilities	(8,162)	7,241
Operating lease liabilities	(1,883)	1,820
Other	(467)	1,753
Net cash used in operating activities	(9,897)	(34,779)
Cash flows from investing activities:
Purchase of property and equipment	(3,128)	(1,166)
Proceeds from sale of property and equipment	2,657	1,295
Contributions to other investments	(13)	(81)
Distributions from other investments	52
Net cash (used in) provided by investing activities	(432)	48
Cash flows from financing activities:
Borrowings on revolving credit facility	5,000	3,000
Borrowings on notes payable	222	181
Payments on notes payable	(10,650)	(12,382)
Payments of deferred financing costs	(75)
Advances from related parties		(493)
Payments from related parties	125	6
Payments on finance lease	(1,359)	(1,189)
Distribution to members		(110)
Payment of taxes related to net share settlement of RSUs	(206)
Other		17,088
Net cash (used in) provided by financing activities	(6,943)	6,101
Effect of exchange rate on cash	(31)	190
Net decrease in cash and cash equivalents and restricted cash	(17,303)	(28,440)
Cash, cash equivalents, and restricted cash at beginning of period	63,820	71,991
Cash, cash equivalents, and restricted cash at end of period	46,517	43,551
Supplemental cash flow information
Cash refunds from income taxes	454	87
Cash paid for interest	5,527	3,230
Non-cash investing and financing activities:
Lease assets obtained in exchange for new leases	1,252	6,416
Assets obtained in exchange for notes payable	3,341	2,299
Related party payable exchanged for note payable	$ 3,797
Issuance of post-merger earn out shares		35,000
Dividend financed with notes payable		$ 50,000

Description of Business	3 Months Ended
	Mar. 31, 2024
Description of Business
Description of Business	​ 1. Description of Business Southland Holdings, Inc. (“Southland”, the “Company”, “we”, “us”, or “our”) is a diverse leader in specialty infrastructure construction with roots dating back to 1900. We design and construct projects in the bridges, tunnels, transportation and facilities, marine, steel structures, water and wastewater treatment, and water pipelines end markets. Southland is based in Grapevine, Texas. It is the parent company of Johnson Bros. Corporation, American Bridge Holding Company (“American Bridge”), Oscar Renda Contracting, Southland Contracting, Mole Constructors, Heritage Materials and other affiliates. American Bridge, a builder of specialty construction projects, was acquired in 2020. With the combined capabilities of these six primary subsidiaries and their affiliates, Southland has become a diversified industry leader with both public and private customers. The majority of our customers are located in the United States. In the second quarter of 2023, Southland decided to discontinue certain types of projects in its Materials & Paving business line (“M&P”) and sold assets related to producing large scale concrete and asphalt. M&P is reported in the Transportation segment. The Company will not be pursuing production of concrete and asphalt products for use on self-performed paving projects where the majority of the scope of work contains large-scale concrete and asphalt production or sale of asphalt and concrete products to third parties. This operational shift will allow the Company to better focus its resources on more profitable lines of business. The Company has concluded this action with M&P does not qualify for Discontinued Operations treatment and presentation as it does not represent a strategic shift in the Company’s business. As previously announced, on May 25, 2022, Legato Merger Corp. II, a Delaware corporation (“Legato II”), entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Legato Merger Sub Inc., a Delaware corporation and wholly owned subsidiary of Legato II (“Merger Sub”), and Southland Holdings LLC, a Texas limited liability company (“Southland LLC”). On February 14, 2023 (the “Closing Date”), as contemplated by the Merger Agreement, Merger Sub merged with and into Southland LLC, with Southland LLC surviving the merger as a wholly owned subsidiary of Legato II (the “Merger”). The transactions contemplated by the Merger Agreement are referred to herein collectively as the “Business Combination.” In connection with the Business Combination, Legato II changed its name to “Southland Holdings, Inc.” The Merger was accounted for as a reverse recapitalization with Southland LLC as the accounting acquirer and Legato II as the acquired company for accounting purposes. Accordingly, all historical financial information presented in the consolidated financial statements represents the accounts of Southland and its subsidiaries as if Southland had been the predecessor Company. COVID-19 Considerations Certain impacts to public health conditions particular to the coronavirus (“COVID-19”) outbreak have had a significant negative impact on our operations and profitability. The continuing extent of the impact to our financial performance will depend on future developments, including (i) the duration and spread of the outbreak, (ii) the restrictions and advisories, (iii) the effects on the financial markets, and (iv) the effects on the economy overall, all of which are highly uncertain and cannot be predicted. If our financial performance is impacted because of these developments for an extended period, our results may be materially adversely affected. We cannot anticipate how the potential widespread distribution of a vaccine will mitigate this impact on either COVID-19 or on future variants of the disease. Under the provision of the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”), employers were eligible for a refundable employee retention credit subject to certain criteria. As of December 31, 2022, the Companies had filed a claim with the IRS and received a refund of $2.4 million in 2023. ​

Basis of Presentation	3 Months Ended
	Mar. 31, 2024
Basis of Presentation
Basis of Presentation	2. Basis of Presentation Consolidated U.S. GAAP Presentation These interim unaudited condensed consolidated financial statements have been prepared in conformity with United States generally accepted accounting principles (“GAAP”). The Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) contains guidance that form GAAP. New guidance is released via Accounting Standards Update (“ASU”). The unaudited condensed consolidated financial statements have been prepared by us pursuant to the rules and regulations of the SEC regarding interim financial reporting. Accordingly, certain information and footnote disclosures required by GAAP for complete financial statements have been condensed or omitted in accordance with such rules and regulations. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation of the unaudited condensed consolidated financial statements have been included. These unaudited condensed consolidated financial statements should be read in conjunction with our Annual Report which was filed on Form 10-K on March 4, 2024. The accompanying consolidated balance sheet and related disclosures as of December 31, 2023, have been derived from the Form 10-K filed on March 4, 2024. The Company’s financial condition as of March 31, 2024, and operating results for the three months ended March 31, 2024, are not necessarily indicative of the financial conditions and results of operations that may be expected for any future interim period or for the year ending December 31, 2024. The unaudited condensed consolidated financial statements include the accounts of Southland Holdings, Inc., and our majority-owned and controlled subsidiaries and affiliates. All significant intercompany transactions are eliminated within the consolidations process. Investments in non-construction related partnerships and less-than-majority owned subsidiaries that we do not control, but where we have significant influence are accounted for under the equity method. Certain construction related joint ventures and partnerships that we do not control, nor do we have significant influence are accounted for under the equity method for the balance sheet and the proportionate consolidation method for the statement of operations. Use of Estimates The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amount of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Management periodically evaluates estimates used in the preparation of the consolidated financial statements for continued reasonableness. It is reasonably possible that changes may occur in the near term that would affect our estimates with respect to revenue recognition, the allowance for credit losses, recoverability of unapproved contract modifications, deferred tax assets, and other accounts for which estimates are required. Cash, Cash Equivalents, and Restricted Cash We consider all highly liquid instruments purchased with a maturity of three months or less as cash equivalents. We maintain our cash in accounts at certain financial institutions. The majority of our balances exceed federally insured limits. We have not experienced any losses in these accounts, and we do not believe they are exposed to any significant credit risk. Restricted cash and cash equivalents consist of amounts held in accounts in our name at certain financial institutions. These accounts are subject to certain control provisions in favor of various surety and insurance companies for purposes of compliance and security perfections. ​ ​ ​ ​ ​ ​ ​ (Amounts in thousands) March 31, 2024      December 31, 2023 Cash and cash equivalents at beginning of period $ 49,176 ​ $ 57,915 Restricted cash at beginning of period   14,644 ​   14,076 Cash, cash equivalents, and restricted cash at beginning of period $ 63,820 ​ $ 71,991 ​ ​ ​ ​ ​ ​ Cash and cash equivalents at end of period $ 31,239 ​ $ 49,176 Restricted cash at end of period   15,278 ​   14,644 Cash, cash equivalents, and restricted cash at end of period $ 46,517 ​ $ 63,820 ​ Goodwill and Indefinite-Lived Intangibles Goodwill and indefinite-lived intangibles are tested for impairment annually in the fourth quarter, or more frequently if events or circumstances indicate that goodwill or indefinite-lived intangibles may be impaired. We evaluate goodwill at the reporting unit level (operating segment or one level below an operating segment). We identify our reporting unit and determine the carrying value of the reporting unit by assigning the assets and liabilities, including the existing goodwill and indefinite-lived intangibles, to the reporting unit. Our reporting units are based on our organizational and reporting structure. We currently identify three reporting units. We begin with a qualitative assessment using inputs based on our business, our industry, and overall macroeconomic factors. If our qualitative assessment deems that the fair value of a reporting unit is more likely than not less than its carrying amount, we then complete a quantitative assessment to determine the fair value of the reporting unit and compare it to the carrying amount of the reporting unit. During the three months ended March 31, 2024 and 2023, based on the results of our qualitative assessments which determined that it was more likely than not that the fair value of the reporting units exceeded the carrying amounts and that the fair value of the indefinite-lived intangible assets exceeded the carrying amounts, we did not complete quantitative assessments, and we did not record any impairment of goodwill or indefinite-lived intangible assets. Valuation of Long-Lived Assets We review long-lived assets, including finite-lived intangible assets subject to amortization, for impairment upon the occurrence of events or changes in circumstances that would indicate that the carrying value of the asset or group of assets may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset or group of assets to the future net cash flows expected to be generated by the asset or group of assets. If such assets are not considered to be fully recoverable, any impairment to be recognized is measured by the amount by which the carrying amount of the asset or group of assets exceeds its respective fair value. Assets to be disposed of are reported at the lower of the carrying amount or fair value less costs to sell.  During the three months ended March 31, 2024 and 2023, we did not identify any triggering events that would require a quantitative assessment. Accounts Receivable, Net We provide an allowance for credit losses, which is based upon a review of outstanding receivables, historical collection information, existing economic conditions, and future expectations. Normal contracts receivables are typically due 30 days after the issuance of the invoice. Retainages are due 30 days after completion of the project and acceptance by the contract owner. Warranty retainage receivables are typically due two years after completion of the project and acceptance by the contract owner. Receivables past due more than 120 days are considered delinquent. Delinquent receivables are written off based on individual credit evaluations and specific circumstances of the customer. As of March 31, 2024, and December 31, 2023, we had an allowance for credit losses of $1.2 million and $1.3 million, respectively. Recently Issued Accounting Pronouncements In August 2023, the FASB issued ASU 2023-05, “Business Combinations-Joint Venture Formations (Subtopic 805-60): Recognition and Initial Measurement” (“ASU 2023-05”), which requires that a joint venture apply a new basis of accounting upon formation. As a result, a newly formed joint venture, upon formation, would initially measure its assets and liabilities at fair value. ASU 2023-05 is effective prospectively for all joint venture formations with a formation date on or after January 1, 2025. We plan to adopt ASU 2023-05 in the first quarter of 2025, but do not expect the adoption to have a material impact on our consolidated financial statements. In October 2023, the FASB issued ASU 2023-06 “Codification Amendments in Response to the SEC’s Disclosure Update and Simplification Initiative,” which amends GAAP to include 14 disclosure requirements that are currently required under SEC Regulation S-X or Regulation S-K. Each amendment will be effective on the date on which the SEC removes the related disclosure requirement from SEC Regulation S-X or Registration S-K. The Company has evaluated the new standard and determined that it will have no material impact on its consolidated financial statements or disclosures since the Company is already subject to the relevant SEC disclosure requirements. In November 2023, FASB issued ASU 2023-07, "Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures" ("ASU 2023-07"), which requires expanded disclosure of significant segment expenses and other segment items on an annual and interim basis. ASU 2023-07 is effective for us for annual periods beginning after January 1, 2024 and interim periods beginning after January 1, 2025. We are currently evaluating the impact ASU 2023-07 will have on our consolidated financial statements and related disclosures. On December 14, 2023, the FASB issued ASU 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures,” which established new income tax disclosure requirements. Public business entities must apply the guidance to annual periods beginning after December 15, 2024. We have not elected to early adopt this standard. We are currently evaluating the impact ASU 2023-09 will have on our consolidated financial statements and related disclosures. Recent SEC Rules In March 2024, the SEC adopted the final rule under SEC Release No. 33-11275, The Enhancement and Standardization of Climate-Related Disclosures for Investors. Unless legal challenges to the rule prevail, this rule will require registrants to disclose certain climate-related information in registration statements and annual reports, and the revisions to Regulation S-X would apply to our financial statements beginning with our fiscal year ending December 31, 2025. We are currently assessing the effect of these new rules on our condensed consolidated financial statements and related disclosures. Significant Accounting Policies The significant accounting policies followed by the Company are set forth in Note 2 to the 10-K filed on March 4, 2024, and contained elsewhere herein, other than the policy for warrants, which is included below. For the three months ended March 31, 2024, there were no significant changes in our use of estimates or significant accounting policies. Warrants The Company accounts for warrants as either equity-classified or liability-classified instruments based on an assessment of the instruments’ specific terms and applicable authoritative guidance in FASB ASC 480, “Distinguishing Liabilities from Equity” (“ASC 480”), and ASC 815, “Derivatives and Hedging” (“ASC 815”). The assessment considers whether the instruments are freestanding financial instruments pursuant to ASC 480, meet the definition of a liability pursuant to ASC 480, and whether the instruments meet all of the requirements for equity classification under ASC 815, including whether the instruments are indexed to the Company’s own common shares and whether the instrument holders could potentially require “net cash settlement” in a circumstance outside of the Company’s control, among other conditions for equity classification. This assessment, which requires the use of professional judgment, was conducted at the time of warrant issuance and as of each subsequent quarterly period end date while the instruments are outstanding. The Company has concluded that the public warrants and private warrants issued pursuant to the warrant agreement qualify for equity accounting treatment.

Recapitalization	3 Months Ended
	Mar. 31, 2024
Recapitalization
Recapitalization	3. Recapitalization As discussed in Note 1 – Description of Business, on the Closing Date, the Company issued 33,793,111 shares of common stock to the former members of Southland (“Southland Members”) in exchange for their membership interests in Southland (“Southland Membership Interests”). Southland received net proceeds of $17.1 million. Transaction costs of $9.9 million directly related to the Merger, are included in additional paid-in capital in the condensed consolidated balance sheet as of March 31, 2024. Prior to the Merger, Southland LLC declared a $50.0 million dividend to be payable to Southland Members, which is recorded in other noncurrent liabilities on the condensed consolidated balance sheets. Southland Members, in lieu of cash payment, agreed to receive a promissory note for payment in the future. The notes have a four-year term and accrue interest at 7.0%. Southland, at its discretion, may make interim interest and principal payments during the term. Immediately after giving effect to the Business Combination, there were 44,407,831 shares of common stock and 14,385,500 warrants, each exercisable for a share of common stock at an exercise price of $11.50 per share (including public and private placement warrants) (each a “Warrant” and together, collectively, the “Warrants”), outstanding. Earnout Shares Pursuant to the Merger Agreement, Southland Members have the potential to be issued additional consideration of up to 10,344,828 shares of common stock for attaining certain performance targets for the years ended December 31, 2022, and December 31, 2023. On April 27, 2023, Southland issued 3,448,283 shares of common stock to the Southland Members pursuant to the attainment of the 2022 Base Target (as defined in the Merger Agreement).

Fair Value Measurements	3 Months Ended
	Mar. 31, 2024
Fair Value of Investments
Fair Value Measurements	4. Fair Value Investments Fair value of investments measured on a recurring basis as of March 31, 2024, and December 31, 2023, were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ As of ​ March 31, 2024 (Amounts in thousands) Fair Value      Level 1      Level 2      Level 3 Marketable Securities ​      ​      ​      ​    Common stocks $ — ​ $ — ​ $ — ​ $ — Total   — ​   — ​   — ​   — Investments Noncurrent      ​      ​      ​      Private equity   3,120 ​   — ​   — ​   3,120 Total noncurrent   3,120 ​   — ​   — ​   3,120 Overall Total $ 3,120 ​ $ — ​ $ — ​ $ 3,120 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ As of ​ December 31, 2023 (Amounts in thousands) Fair Value      Level 1      Level 2      Level 3 Marketable Securities ​      ​      ​      ​    Common stocks $ — ​ $ — ​ $ — ​ $ — Total   — ​   — ​   — ​   — Investments Noncurrent      ​      ​      ​      Private equity   3,235 ​   — ​   — ​   3,235 Total noncurrent   3,235 ​   — ​   — ​   3,235 Overall Total $ 3,235 ​ $ — ​ $ — ​ $ 3,235 ​

Revenue	3 Months Ended
	Mar. 31, 2024
Revenue
Revenue	5. Revenue Revenue is recognized over time using the input method in accordance with ASC 606, measured by the percentage of cost incurred to date to estimated total cost for each contract. This method is used because we believe expended cost to be the best available measure of progress on contracts. Our contracts are primarily in the form of firm fixed-price and fixed-price per unit. A large portion of our contracts have scope defined adequately, which allows us to estimate total contract value upon the signing of a new contract. Upon signing a new contract, we allocate the total consideration across various contractual promises to transfer a distinct good or service to a customer. These are grouped into specific performance obligations. This process requires significant management judgement. Most of our contracts have a single performance obligation. For contracts with multiple performance obligations, we allocate the total transaction price based on the estimated standalone selling price, which is the total project costs plus a budgeted margin percentage, for each of the performance obligations. Revenue is recognized when, or as, the performance obligations are satisfied. Our contracts do not include a significant financing component. Costs to obtain contracts are generally not significant and are expensed in the period incurred. Estimating cost to complete of long-term contracts involves a significant amount of estimation and judgement. For long-term contracts, we use the calculated transaction price, estimated cost to complete the project, and the total costs incurred on the project to date to calculate the percentage of the project that is complete. The costs to complete the project and the transaction price can change due to unforeseen events that can either increase or decrease the margin on a particular project. Our contract structure allows for variable consideration. A significant portion of this variable consideration comes in the form of change order requests and claims. Other variable consideration can include performance bonuses, incentives, liquidated damages, and other terms that can either raise or lower the total transaction price. We estimate variable consideration based on the probability of being entitled to collection of specific amounts. We include amounts that we believe we have an enforceable right to collect based on our probability of success with specific claims or contractual rights. Our estimates of total variable consideration rely on all available information about our customer including historical, current, and forecasted information. Many of our contracts require contract modifications resulting from a change in contract scope or requirements. Change orders are issued to document changes to the original contract. We can have approved and unapproved change orders. Unapproved change orders are contract modifications for which we or our customers have not agreed to terms, scope and price. Contract modifications are necessary for many reasons, including but not limited to, changes to the contract specifications or design from the customer, modification to the original scope, changes to engineering drawings, or other required deviation from the original construction plan. Contract modifications may also be necessary for reasons including, but not limited to, other changes to the contract which may be out of our control, such as rain or other weather delays, incomplete, insufficient, inaccurate engineering drawings, different site conditions from information made available during the estimating process, or other reasons. An unapproved change order may turn into a formal claim if we cannot come to an agreement with the owner but are contractually entitled to recovery of costs and profits for work performed. Costs incurred related to contract modifications are included in the estimated costs to complete and are treated as project costs when incurred. Unless the contract modification is distinct from the other goods and services included within the project, the contract modification is accounted for as part of the existing contract. The effect of any modifications on the transaction price, and our measure of the percentage-of-completion on specific performance obligations for which the contract modification relates, is recognized as a cumulative catch-up adjustment to revenue recognized. In some cases, contract modifications may not be fully settled until after the completion of work as specified in the original contract. We review and update our contract estimates regularly. Any adjustments in estimated profit on contracts is recognized under the cumulative catch-up method. Under this method, the cumulative impact of the profit adjustment is recognized in the period the adjustment is identified. Revenue and profit in future periods are then recognized using an updated estimate that uses inputs consisting of the estimated transaction price and the estimated remaining costs to be incurred on the project. If a contract is deemed to be in a loss position, the projected loss is recognized in full, including reversal of any previously recognized margin, in the period in which the change in estimate is made. Losses are recognized as an accrued loss provision on the consolidated balance sheets in the accrued liabilities caption. For contract revenue after the date that the loss is accrued, the accrued loss provision is adjusted so that the gross profit for the contract remains zero in future periods, subject to future adjustments to the overall expected profit or loss as determined at such time. As of March 31, 2024 and December 31, 2023, we had $16.1 million and $17.3 million, respectively, in accrued loss provisions. As of March 31, 2024 and December 31, 2023, we had $162.9 million and $139.6 million, respectively, of unapproved contract modifications included within our various projects’ transaction prices. These modifications are in negotiation with our customers or other third parties. We estimate the likelihood of collection during the bidding process for new contracts. Customers with history of late or non-payment are avoided in the bidding process. We consider the necessity for write-down of receivable balances in conjunction with GAAP when evaluating our estimates of transaction price and estimated costs to complete our projects. We bill our customers in conjunction with our contract terms. Our contracts have three main categories, (i) contracts that are billed based on a specific timeline, (ii) contracts that are billed upon the completion of certain phases of work, or milestones, and (iii) contracts that are billed as services are provided. Some of our contracts are billed following the recognition of certain revenue. This creates an asset on our consolidated balance sheets captioned “contract assets.” Other contracts’ schedules allow us to bill customers prior to recognizing revenue. These contracts create a liability on our consolidated balance sheets captioned “contract liabilities.” We segregate our business into two reportable segments: Transportation and Civil. Our Chief Operating Decision Maker (“CODM”) uses these segments in order to operate the business. Our segments offer different specialty infrastructure services. Our CODM regularly reviews our operating and financial performance based on these segments. Each of our reportable segments is composed of similar business units that specialize in specialty infrastructure projects that are unique. Our business is managed using revenue and gross profit primarily. Our CODM regularly uses this information to review operating results, plan future bids, allocate resources, target customers, and plan future growth and capital allocations. To determine reportable segment gross profit, certain allocations, including allocations of shared and indirect costs, such as facility costs, equipment costs, and indirect operating expenses, were made. Our Civil segment is comprised of Oscar Renda Contracting, Inc., Mole Constructors, Inc., Southland Contracting, Inc., Southland Holdings, LLC, Renda Pacific, LLC, Southland Renda JV, Southland RE Properties, Oscar Renda Contracting Canada, Southland Mole of Canada, Southland Technicore Mole joint venture, and Southland Astaldi joint venture. This segment focuses on projects throughout North America that include the design and construction of water pipeline, pump stations, lift stations, water and wastewater treatment plants, concrete and structural steel, outfall, and tunneling. Our Transportation segment is comprised of American Bridge, Heritage Materials, LLC, and Johnson Bros. Corporation. This segment operates throughout North America and specializes in services that include the design and construction of bridges, roadways, marine, dredging, ship terminals, and piers, and specialty structures and facilities. Total assets by segment are not presented as our CODM, as defined by ASC 280, does not review or allocate resources based on segment assets. We do not have material intersegment revenue or gross profit. Joint ventures are classified into the segment with which the projects align. Segment Revenue Revenue by segment for the three months ended March 31, 2024 and 2023, was as follows:   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ (Amounts in thousands) March 31, 2024      March 31, 2023   ​ ​ ​      % of Total       ​ ​      % of Total   Segment Revenue ​ Revenue ​ Revenue ​  Revenue   Civil $ 84,273   29.3 %   $ 72,989   26.6 % Transportation   203,824   70.7 %     201,840   73.4 % Total revenue $ 288,097   100.0 %   $ 274,829   100.0 % ​ Segment Gross Profit Gross profit by segment for the three months ended March 31, 2024 and 2023, was as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ (Amounts in thousands) March 31, 2024      March 31, 2023   ​ ​      % of Segment       ​ ​      % of Segment    Segment Gross Profit ​ Revenue ​ Gross Profit ​ Revenue   Civil $ 17,870   21.2 %   $ 8,766   12.0 % Transportation   2,551   1.3 %     10,177   5.0 % Gross profit $ 20,421   7.1 %   $ 18,943   6.9 % ​ Revenue earned outside of the United States was 26% and 23% for the three months ended March 31, 2024 and 2023, respectively.

Debt	3 Months Ended
	Mar. 31, 2024
Debt
Debt	6. Debt Long-term debt and credit facilities consisted of the following as of March 31, 2024, and December 31, 2023: ​ ​ ​ ​ ​ ​ ​ ​ As of (Amounts in thousands) March 31, 2024      December 31, 2023 Secured notes $ 206,892 ​ $ 210,197 Mortgage notes   667 ​   689 Revolving credit facility   95,000 ​   90,000 Total debt   302,559 ​   300,886 Unamortized deferred financing costs   (544) ​   (526) Total debt, net   302,015 ​   300,360 Less: Current portion   (46,425) ​   (48,454) Total long-term debt $ 255,590 ​   251,906 ​ The weighted average interest rate on total debt outstanding as of March 31, 2024 and December 31, 2023, was 6.21% and 6.12%, respectively. As of March 31, 2024, our fleet of equipment was subject to liens securing our debt. In February 2024, the Company amended the revolving credit facility to restructure certain covenant levels through December 31, 2024.  In May 2024, the Company amended the revolving credit facility to extend the maturity to April 15, 2025 and a waiver was granted for certain debt covenants as of March 31, 2024. We are currently in compliance with all applicable debt covenants, as amended or waived. The Company projects to be in compliance with all applicable debt covenants through March 31, 2025. Revolving Credit Facility In July 2021, we entered into a revolving credit facility agreement with Frost Bank for $50.0 million. As of December 31, 2022, the revolving credit facility agreement had been amended and increased to $100.0 million. In August 2023, the revolving credit facility was extended through January 15, 2025 and we incurred $0.3 million in deferred financing costs. The revolving credit facility agreement bears interest on drawn balances at 1-month SOFR, subject to a floor of 0.90%, plus an applicable margin rate of 3.00%. The waiver granted for March 31, 2024 covenant non-compliance amended the revolving credit facility limit to $95.0 million, required a $5.0 million cash collateral deposit to be made by June 15, 2024, and extended maturity to April 15, 2025. As of March 31, 2024, $95.0 million was drawn on the revolving credit facility. The revolving credit facility is collateralized by certain real estate assets, unencumbered assets, and a junior lien position on certain assets of Southland. ​ Secured Notes We enter into secured notes in order to finance growth within our business. In July 2023, we refinanced approximately $76.4 million of existing secured notes in exchange for a new equipment note in the amount of $113.5 million. The new equipment note is secured by specific construction equipment assets and has a five-year fully amortizing term at a fixed rate of 7.25%. We incurred $0.3 million as deferred financing cost in connection with the refinancing. The deferred financing costs are included in long-term debt on our consolidated balance sheets. Additionally, as part of the refinancing, we incurred a loss on extinguishment of debt of $0.6 million, which was included in other income, net on our consolidated statements of operations and $0.6 million as bank service charges in connection with the refinancing. As of March 31, 2024, we had outstanding secured notes expiring between April 2024 and March 2033. Interest rates on the secured notes range between 1.29% and 8.00%. The secured notes are collateralized by certain assets of Southland’s fleet of equipment. Mortgage Notes We enter into mortgage notes in order to finance growth within our business. As of March 31, 2024, we had mortgage notes expiring between October 2024 and February 2029. Interest rates on the mortgage notes range between 3.84% and 5.99%. The mortgage notes are collateralized by certain real estate owned by Southland.

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2024
Commitments and Contingencies
Commitments and Contingencies	7. Commitments and Contingencies Litigation In the ordinary course of business, we and our affiliates are involved in various legal proceedings alleging, among other things, liability issues or breach of contract or tortious conduct in connection with the performance of services and/or materials provided, the outcomes of which cannot be predicted with certainty. We and our affiliates are also subject to government inquiries in the ordinary course of business seeking information concerning our compliance with government construction contracting requirements and various laws and regulations, the outcomes of which cannot be predicted with certainty. Some of the matters in which we or our joint ventures and affiliates are involved may involve compensatory, punitive, or other claims or sanctions that, if granted, could require us to pay damages or make other expenditures in amounts that are not currently probable to be incurred or cannot currently be reasonably estimated. In addition, in some circumstances, our government contracts could be terminated, we could be suspended or incur other administrative penalties or sanctions, or payment of our costs could be disallowed. While any of our pending legal proceedings may be subject to early resolution as a result of our ongoing efforts to resolve the proceeding, whether or when any legal proceeding will be resolved is neither predictable nor guaranteed. Accordingly, it is possible that future developments in such proceedings and inquiries could require us to (i) adjust existing accruals, or (ii) record new accruals that we did not originally believe to be probable or that could not be reasonably estimated. Such changes could be material to our financial condition, results of operations, and/or cash flows in any particular reporting period. In addition to matters that are considered probable for which the loss can be reasonably estimated, disclosure is also provided when it is reasonably possible and estimable that a loss will be incurred, when it is reasonably possible that the amount of a loss will exceed the amount recorded, or a loss is probable but the loss cannot be estimated. Liabilities relating to legal proceedings and government inquiries, to the extent that we have concluded such liabilities are probable and the amounts of such liabilities are reasonably estimable, are recorded on the consolidated balance sheets. A certain number of the claims are insured but subject to varying deductibles, and a certain number of the claims are uninsured. The aggregate range of possible loss related to (i) matters considered reasonably possible, and (ii) reasonably possible amounts in excess of accrued losses recorded for probable loss contingencies was immaterial, as of March 31, 2024, and December 31, 2023. Our estimates of such matters could change in future periods. Surety Bonds We, as a condition for entering into a substantial portion of our construction contracts, had outstanding surety bonds as of March 31, 2024, and December 31, 2023. We have agreed to indemnify the surety if the surety experiences a loss on the bonds of any of our affiliates. Self-Insurance We are self-insured up to certain limits with respect to workers’ compensation, general liability and auto liability matters, and health insurance. We maintain accruals for self-insurance retentions based upon third-party data and claims history. ​

Income Taxes	3 Months Ended
	Mar. 31, 2024
Income Taxes
Income Taxes	8. Income Taxes Prior to the Merger in 2023, Southland LLC, and various domestic subsidiaries, elected to be taxed as an S-corporation, under the provisions of Subchapter S of the Internal Revenue Code. As such, their respective earnings were not subject to entity level income tax, but instead, the owners were liable for federal income taxes on their respective shares of the applicable income. American Bridge and Oscar Renda, two domestic subsidiaries of Southland LLC, had historically been taxed as separate C-corporation and their income subject to entity-level tax. ​ Following the closing of the Merger on February 14, 2023, Southland LLC, along with various domestic subsidiaries, elected to voluntarily revoke their S-corporation status effective January 1, 2023. As a result, Southland Holdings LLC, and their domestic subsidiaries, elected to file a consolidated corporate income tax return for the 2023 calendar year. Effective January 1, 2024 Southland Holdings LLC and subsidiary filing group elected to join the Southland Holdings, Inc. and Subsidiaries filing group to have all domestic corporate entities included within one consolidated federal income tax return for the 2024 calendar year. ​ The federal statutory tax rate is 21%. Southland’s effective tax rate was 36.9% for the three months ended March 31, 2024. The primary differences between the statutory rate and the effective rate were due to state income taxes including adjustments in the quarter for additional state refunds received previously not recorded and a change in state rate applied to deferred tax assets and liabilities. Additionally, as with previous periods, the Company has recorded income earned in a foreign jurisdiction with a zero tax rate; however, that foreign income is included within U.S taxable income through GILTI. Lastly, the Company has recorded an additional $0.3 million in calculated penalties and interest mainly related to the previously recorded uncertain tax position accrual related to 2020 U.S. federal net operating loss treatment.   ​ Southland’s effective tax rate was a negative 69.8% for the three months ended March 31, 2023. The primary difference between the statutory rate and the Company’s effective rate was due to the pre-tax loss and the change in the U.S consolidated filing structure effective January 1, 2023, as a result of the Merger.  This change in filing structure required recording deferred tax assets and liabilities related to entities previously not subject to income tax with $5.0 million being recorded to income tax expense for the three months ended March, 31 2023.  As the Merger did not require acquisition accounting under U.S. GAAP, the recording of these deferred tax assets and liabilities was recorded to current operations in accordance with the requirements under ASC 740.  Additionally, $1.1 million was recorded to income tax expense as of March 31, 2023 due to the change in the state effective tax rate applied to both American Bridge and Oscar Renda deferred tax assets and liabilities.  Lastly, as a result of the new U.S. consolidated filing structure, Southland is in a net deferred tax liability position for both federal and state income tax. As a result the U.S. and state deferred tax assets are considered to be more-likely-than-not realizable, and therefore a valuation allowance is not deemed necessary. The previously recorded valuation allowance related to American Bridge federal and state net deferred tax assets has been removed resulting with a benefit to income tax of $3.8 million recorded in the three months ended March 31, 2023. ​ Southland is in a net deferred tax asset position for both federal and state income tax mainly resulting from the capitalization of R&D expenses under IRC 174 offset by a deferred tax liability for the acceleration of depreciation for income tax purposes as for the three month period ended March 31, 2024. Southland is in a three-year cumulative book income position after adjusting for permanent and one-time items and is forecasting that the net deferred tax assets, are more-likely-than-not to be fully utilized. ​

Remaining Unsatisfied Performance Obligations	3 Months Ended
	Mar. 31, 2024
Remaining Unsatisfied Performance Obligations
Remaining Unsatisfied Performance Obligations	9. Remaining Unsatisfied Performance Obligations Remaining Unsatisfied Performance Obligations (“RUPO”) consists of two components: (1) unearned revenue and (2) awarded but not started. Unearned revenue includes the revenue we expect to record in the future on in-progress contracts, including 100% of our consolidated joint venture contracts and our proportionate share of unconsolidated joint venture contracts. Contracts that are awarded, but not yet started, are included in RUPO once a contract has been fully executed and/or we have received a formal “Notice to Proceed” from the project owner. ​ Although RUPO reflects business that we consider to be firm, deferrals, cancellations and/or scope adjustments may occur. RUPO is adjusted to reflect any known project cancellations, revisions to project scope and cost, foreign currency exchange fluctuations and project deferrals, as appropriate. ​ Fixed price contracts, particularly with federal, state and local government customers, are expected to continue to represent a majority of our total RUPO. ​ The following schedule shows the RUPO as of March 31, 2024, and December 31, 2023: ​ ​ ​ ​ ​ ​ ​ ​ As of (Amounts in millions) March 31, 2024      March 31, 2023 Remaining Unsatisfied Performance Obligations $ 2,639 ​ $ 2,862 ​ The Company expects to recognize approximately 42% of its RUPOs as revenue during the next twelve months, and the balance thereafter.

Cost and Estimated Earnings on Uncompleted Contracts	3 Months Ended
	Mar. 31, 2024
Cost and Estimated Earnings on Uncompleted Contracts
Cost and Estimated Earnings on Uncompleted Contracts	10. Cost and Estimated Earnings on Uncompleted Contracts Contract assets as of March 31, 2024, and December 31, 2023, consisted of the following: ​ ​ ​ ​ ​ ​ ​ ​ As of (Amounts in thousands) March 31, 2024      December 31, 2023 Costs in excess of billings $ 539,407 ​ $ 525,588 Costs to fulfill contracts, net   30,713 ​   28,614 Contract assets $ 570,120 ​ $ 554,202 ​ Costs and estimated earnings on uncompleted contracts were as follows as of March 31, 2024, and December 31, 2023: ​ ​ ​ ​ ​ ​ ​ ​ As of (Amounts in thousands) March 31, 2024      December 31, 2023 Costs incurred on uncompleted contracts $ 7,416,687 ​ $ 7,293,246 Estimated earnings   406,603 ​   456,852 Costs incurred and estimated earnings   7,823,290 ​   7,750,098 Less: billings to date   (7,469,066) ​   (7,417,861) Costs to fulfill contracts, net   30,713 ​   28,614 Net contract position $ 384,937 ​ $ 360,851 ​ Our net contract position is included on the condensed consolidated balance sheets under the following captions: ​ ​ ​ ​ ​ ​ ​ ​ As of (Amounts in thousands) March 31, 2024      December 31, 2023 Contract assets $ 570,120 ​ $ 554,202 Contract liabilities   (185,183) ​   (193,351) Net contract position $ 384,937 ​ $ 360,851 ​ As of March 31, 2024, and December 31, 2023, we had recorded $323.3 million and $306.4 million, respectively, related to claims. The classification of these amounts are represented on the consolidated balance sheets as of March 31, 2024, and December 31, 2023, as follows: ​ ​ ​ ​ ​ ​ ​ ​ As of (Amounts in thousands) March 31, 2024      December 31, 2023 Costs in excess of billings $ 225,121 ​ $ 208,203 Investments   98,222 ​   98,209 Claims asset total $ 323,343 ​ $ 306,412 ​ ​ On January 1, 2024, we had contract liabilities of $193.4 million, of which $93.5 million was recognized as revenue during the three months ended March 31, 2024. ​ On January 1, 2023, we had contract liabilities of $131.6 million, of which $74.2 million was recognized as revenue during the three months ended March 31, 2023.

Noncontrolling Interests Holders	3 Months Ended
	Mar. 31, 2024
Noncontrolling Interests Holders
Noncontrolling Interests Holders	11. Noncontrolling Interests Holders Southland has several controlling interests including both joint ventures and partnerships. We have controlling interests and allocate earnings and losses in those entities to the noncontrolling interest holders based on our ownership percentages. We owned an 84.7% interest in Oscar Renda Contracting, Inc. (“Oscar Renda”), as of March 31, 2024, and March 31, 2023. We owned a 65.0% interest in the Southland Technicore Mole joint venture and a 70.0% interest in the Southland Astaldi joint venture as of March 31, 2024, and March 31, 2023. American Bridge entered into a joint venture with Commodore Maintenance Corporation, forming American Bridge/Commodore Joint Venture. According to the joint venture agreement, each of the parties is paid in accordance with its respective work performed and has no responsibility for losses incurred by the other party in performance of its work. At March 31, 2024, American Bridge was responsible for approximately 83% of the total contracted work. We consolidated each of Oscar Renda Contracting, Inc., Southland Technicore Mole joint venture, Southland Astaldi joint venture, and American Bridge/Commodore Joint Venture as a result of our ownership percentage over the joint venture operations. We have fully consolidated revenue, cost of construction, and other costs on our unaudited condensed consolidated statements of operations and balances on the unaudited condensed consolidated balance sheets. ​

Related Party Transactions	3 Months Ended
	Mar. 31, 2024
Related Party Transactions
Related Party Transactions	12. Related Party Transactions ​ Southland occasionally enters into subcontracts with a subcontractor in which certain employees hold a minority ownership. Cost of construction related to this subcontractor was $1.1 million and $0.5 million for the three months ended March 31, 2024 and 2023, respectively. Accounts payable balance due to this subcontractor was $2.6 million and $0.4 million as of March 31, 2024 and December 31, 2023. The terms on which Southland enters into agreements with this related party are substantially the same as terms the Company would enter into with a similar, unrelated party. ​

Share-Based Compensation	3 Months Ended
	Mar. 31, 2024
Share-Based Compensation
Share-Based Compensation	13. Share-Based Compensation On May 24, 2022, the board of directors of Legato Merger Corp. II, a Delaware corporation, adopted Southland Holdings, Inc. 2022 Equity Incentive Plan (“2022 Plan”). A total of 2,220,392 shares of our common stock were reserved for issuance under the 2022 Plan of which 1,772,583 remained available as of March 31, 2024. Restricted Stock Units (“RSUs”): RSUs are issued for compensatory purposes. RSU stock compensation cost is measured at our common stock’s fair value based on the market price at the date of grant. We recognize stock compensation cost only for RSUs that we estimate will ultimately vest. We estimate the number of shares that will ultimately vest at each grant date based on our historical experience and adjust stock compensation cost based on changes in those estimates over time. A summary of the changes in our RSUs during the three months ended March 31, 2024 is as follows (shares in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2024 ​      RSUs      Weighted-Average Grant-Date Fair Value per RSU Outstanding, beginning balance ​ ​ 173,333 ​ $ 8.94 Granted ​ ​ 238,606   ​ 5.16 Vested ​ ​ (133,704)   ​ 6.62 Canceled ​ ​ (41,568) ​ ​ 8.32 Outstanding, ending balance ​ ​ 236,667 ​ $ 6.54 ​ Compensation cost related to RSUs was $0.7 million for the three months ended March 31, 2024, which is included in selling, general and administrative expenses on the consolidated statements of operations. As of March 31, 2024, there was $1.4 million of unrecognized compensation cost related to RSUs which will be recognized over a remaining weighted-average period of 3.3 years.

Loss per Share	3 Months Ended
	Mar. 31, 2024
Loss per Share
Loss per Share	14. Loss per Share ​ Basic and diluted net loss per share for the three months ended March 31, 2024 and 2023 consisted of the following (in thousands, except shares and per share amounts): ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ March 31, 2024 ​ March 31, 2023 Numerator: ​ ​ ​ Net income (loss) $ 525 ​ $ (4,266) Less net income attributable to noncontrolling interests ​ 931 ​ ​ 398 Net loss attributable to common stockholders, basic and diluted ​ (406) ​ ​ (4,664) ​ ​ ​ ​ ​ ​ Denominator(1): ​ ​ ​ Weighted average common shares outstanding — basic ​ 47,925,072 ​ ​ 44,407,831 Weighted average common shares outstanding — diluted ​ 47,925,072 ​ ​ 44,407,831 ​ ​ ​ ​ ​ ​ Net loss per share — basic $ (0.01) ​ $ (0.11) Net loss per share — diluted $ (0.01) ​ $ (0.11) ​ As the average market price of common stock for the three months ended March 31, 2024 did not exceed the exercise price of the Warrants, the potential dilution from the Warrants converting into 14,385,500 shares of common stock for both periods have been excluded from the number of shares used in calculating diluted net loss per share as their inclusion would have been antidilutive.

Basis of Presentation (Policies)	3 Months Ended
	Mar. 31, 2024
Basis of Presentation
Consolidated U.S. GAAP Presentation	Consolidated U.S. GAAP Presentation These interim unaudited condensed consolidated financial statements have been prepared in conformity with United States generally accepted accounting principles (“GAAP”). The Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) contains guidance that form GAAP. New guidance is released via Accounting Standards Update (“ASU”). The unaudited condensed consolidated financial statements have been prepared by us pursuant to the rules and regulations of the SEC regarding interim financial reporting. Accordingly, certain information and footnote disclosures required by GAAP for complete financial statements have been condensed or omitted in accordance with such rules and regulations. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation of the unaudited condensed consolidated financial statements have been included. These unaudited condensed consolidated financial statements should be read in conjunction with our Annual Report which was filed on Form 10-K on March 4, 2024. The accompanying consolidated balance sheet and related disclosures as of December 31, 2023, have been derived from the Form 10-K filed on March 4, 2024. The Company’s financial condition as of March 31, 2024, and operating results for the three months ended March 31, 2024, are not necessarily indicative of the financial conditions and results of operations that may be expected for any future interim period or for the year ending December 31, 2024. The unaudited condensed consolidated financial statements include the accounts of Southland Holdings, Inc., and our majority-owned and controlled subsidiaries and affiliates. All significant intercompany transactions are eliminated within the consolidations process. Investments in non-construction related partnerships and less-than-majority owned subsidiaries that we do not control, but where we have significant influence are accounted for under the equity method. Certain construction related joint ventures and partnerships that we do not control, nor do we have significant influence are accounted for under the equity method for the balance sheet and the proportionate consolidation method for the statement of operations.
Use of Estimates	Use of Estimates The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amount of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Management periodically evaluates estimates used in the preparation of the consolidated financial statements for continued reasonableness. It is reasonably possible that changes may occur in the near term that would affect our estimates with respect to revenue recognition, the allowance for credit losses, recoverability of unapproved contract modifications, deferred tax assets, and other accounts for which estimates are required.
Cash, Cash Equivalents, and Restricted Cash	Cash, Cash Equivalents, and Restricted Cash We consider all highly liquid instruments purchased with a maturity of three months or less as cash equivalents. We maintain our cash in accounts at certain financial institutions. The majority of our balances exceed federally insured limits. We have not experienced any losses in these accounts, and we do not believe they are exposed to any significant credit risk. Restricted cash and cash equivalents consist of amounts held in accounts in our name at certain financial institutions. These accounts are subject to certain control provisions in favor of various surety and insurance companies for purposes of compliance and security perfections. ​ ​ ​ ​ ​ ​ ​ (Amounts in thousands) March 31, 2024      December 31, 2023 Cash and cash equivalents at beginning of period $ 49,176 ​ $ 57,915 Restricted cash at beginning of period   14,644 ​   14,076 Cash, cash equivalents, and restricted cash at beginning of period $ 63,820 ​ $ 71,991 ​ ​ ​ ​ ​ ​ Cash and cash equivalents at end of period $ 31,239 ​ $ 49,176 Restricted cash at end of period   15,278 ​   14,644 Cash, cash equivalents, and restricted cash at end of period $ 46,517 ​ $ 63,820
Goodwill and Indefinite-Lived Intangibles	Goodwill and Indefinite-Lived Intangibles Goodwill and indefinite-lived intangibles are tested for impairment annually in the fourth quarter, or more frequently if events or circumstances indicate that goodwill or indefinite-lived intangibles may be impaired. We evaluate goodwill at the reporting unit level (operating segment or one level below an operating segment). We identify our reporting unit and determine the carrying value of the reporting unit by assigning the assets and liabilities, including the existing goodwill and indefinite-lived intangibles, to the reporting unit. Our reporting units are based on our organizational and reporting structure. We currently identify three reporting units. We begin with a qualitative assessment using inputs based on our business, our industry, and overall macroeconomic factors. If our qualitative assessment deems that the fair value of a reporting unit is more likely than not less than its carrying amount, we then complete a quantitative assessment to determine the fair value of the reporting unit and compare it to the carrying amount of the reporting unit. During the three months ended March 31, 2024 and 2023, based on the results of our qualitative assessments which determined that it was more likely than not that the fair value of the reporting units exceeded the carrying amounts and that the fair value of the indefinite-lived intangible assets exceeded the carrying amounts, we did not complete quantitative assessments, and we did not record any impairment of goodwill or indefinite-lived intangible assets.
Valuation of Long-Lived Assets	Valuation of Long-Lived Assets We review long-lived assets, including finite-lived intangible assets subject to amortization, for impairment upon the occurrence of events or changes in circumstances that would indicate that the carrying value of the asset or group of assets may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset or group of assets to the future net cash flows expected to be generated by the asset or group of assets. If such assets are not considered to be fully recoverable, any impairment to be recognized is measured by the amount by which the carrying amount of the asset or group of assets exceeds its respective fair value. Assets to be disposed of are reported at the lower of the carrying amount or fair value less costs to sell.  During the three months ended March 31, 2024 and 2023, we did not identify any triggering events that would require a quantitative assessment.
Accounts Receivable, Net	Accounts Receivable, Net We provide an allowance for credit losses, which is based upon a review of outstanding receivables, historical collection information, existing economic conditions, and future expectations. Normal contracts receivables are typically due 30 days after the issuance of the invoice. Retainages are due 30 days after completion of the project and acceptance by the contract owner. Warranty retainage receivables are typically due two years after completion of the project and acceptance by the contract owner. Receivables past due more than 120 days are considered delinquent. Delinquent receivables are written off based on individual credit evaluations and specific circumstances of the customer. As of March 31, 2024, and December 31, 2023, we had an allowance for credit losses of $1.2 million and $1.3 million, respectively.
Recently Adopted and Issued Accounting Pronouncements and Recent SEC rules	Recently Issued Accounting Pronouncements In August 2023, the FASB issued ASU 2023-05, “Business Combinations-Joint Venture Formations (Subtopic 805-60): Recognition and Initial Measurement” (“ASU 2023-05”), which requires that a joint venture apply a new basis of accounting upon formation. As a result, a newly formed joint venture, upon formation, would initially measure its assets and liabilities at fair value. ASU 2023-05 is effective prospectively for all joint venture formations with a formation date on or after January 1, 2025. We plan to adopt ASU 2023-05 in the first quarter of 2025, but do not expect the adoption to have a material impact on our consolidated financial statements. In October 2023, the FASB issued ASU 2023-06 “Codification Amendments in Response to the SEC’s Disclosure Update and Simplification Initiative,” which amends GAAP to include 14 disclosure requirements that are currently required under SEC Regulation S-X or Regulation S-K. Each amendment will be effective on the date on which the SEC removes the related disclosure requirement from SEC Regulation S-X or Registration S-K. The Company has evaluated the new standard and determined that it will have no material impact on its consolidated financial statements or disclosures since the Company is already subject to the relevant SEC disclosure requirements. In November 2023, FASB issued ASU 2023-07, "Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures" ("ASU 2023-07"), which requires expanded disclosure of significant segment expenses and other segment items on an annual and interim basis. ASU 2023-07 is effective for us for annual periods beginning after January 1, 2024 and interim periods beginning after January 1, 2025. We are currently evaluating the impact ASU 2023-07 will have on our consolidated financial statements and related disclosures. On December 14, 2023, the FASB issued ASU 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures,” which established new income tax disclosure requirements. Public business entities must apply the guidance to annual periods beginning after December 15, 2024. We have not elected to early adopt this standard. We are currently evaluating the impact ASU 2023-09 will have on our consolidated financial statements and related disclosures. Recent SEC Rules In March 2024, the SEC adopted the final rule under SEC Release No. 33-11275, The Enhancement and Standardization of Climate-Related Disclosures for Investors. Unless legal challenges to the rule prevail, this rule will require registrants to disclose certain climate-related information in registration statements and annual reports, and the revisions to Regulation S-X would apply to our financial statements beginning with our fiscal year ending December 31, 2025. We are currently assessing the effect of these new rules on our condensed consolidated financial statements and related disclosures.
Summary of Significant Accounting Policies	Significant Accounting Policies The significant accounting policies followed by the Company are set forth in Note 2 to the 10-K filed on March 4, 2024, and contained elsewhere herein, other than the policy for warrants, which is included below. For the three months ended March 31, 2024, there were no significant changes in our use of estimates or significant accounting policies.
Warrants	Warrants The Company accounts for warrants as either equity-classified or liability-classified instruments based on an assessment of the instruments’ specific terms and applicable authoritative guidance in FASB ASC 480, “Distinguishing Liabilities from Equity” (“ASC 480”), and ASC 815, “Derivatives and Hedging” (“ASC 815”). The assessment considers whether the instruments are freestanding financial instruments pursuant to ASC 480, meet the definition of a liability pursuant to ASC 480, and whether the instruments meet all of the requirements for equity classification under ASC 815, including whether the instruments are indexed to the Company’s own common shares and whether the instrument holders could potentially require “net cash settlement” in a circumstance outside of the Company’s control, among other conditions for equity classification. This assessment, which requires the use of professional judgment, was conducted at the time of warrant issuance and as of each subsequent quarterly period end date while the instruments are outstanding. The Company has concluded that the public warrants and private warrants issued pursuant to the warrant agreement qualify for equity accounting treatment.

Basis of Presentation (Tables)	3 Months Ended
	Mar. 31, 2024
Basis of Presentation
Schedule of cash and cash equivalents and restricted cash	​ ​ ​ ​ ​ ​ ​ (Amounts in thousands) March 31, 2024      December 31, 2023 Cash and cash equivalents at beginning of period $ 49,176 ​ $ 57,915 Restricted cash at beginning of period   14,644 ​   14,076 Cash, cash equivalents, and restricted cash at beginning of period $ 63,820 ​ $ 71,991 ​ ​ ​ ​ ​ ​ Cash and cash equivalents at end of period $ 31,239 ​ $ 49,176 Restricted cash at end of period   15,278 ​   14,644 Cash, cash equivalents, and restricted cash at end of period $ 46,517 ​ $ 63,820

Fair Value of Measurements (Tables)	3 Months Ended
	Mar. 31, 2024
Fair Value of Investments
Schedule of Fair value, assets measured on recurring basis	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ As of ​ March 31, 2024 (Amounts in thousands) Fair Value      Level 1      Level 2      Level 3 Marketable Securities ​      ​      ​      ​    Common stocks $ — ​ $ — ​ $ — ​ $ — Total   — ​   — ​   — ​   — Investments Noncurrent      ​      ​      ​      Private equity   3,120 ​   — ​   — ​   3,120 Total noncurrent   3,120 ​   — ​   — ​   3,120 Overall Total $ 3,120 ​ $ — ​ $ — ​ $ 3,120 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ As of ​ December 31, 2023 (Amounts in thousands) Fair Value      Level 1      Level 2      Level 3 Marketable Securities ​      ​      ​      ​    Common stocks $ — ​ $ — ​ $ — ​ $ — Total   — ​   — ​   — ​   — Investments Noncurrent      ​      ​      ​      Private equity   3,235 ​   — ​   — ​   3,235 Total noncurrent   3,235 ​   — ​   — ​   3,235 Overall Total $ 3,235 ​ $ — ​ $ — ​ $ 3,235 ​

Revenue (Tables)	3 Months Ended
	Mar. 31, 2024
Revenue
Schedule of revenue by segment	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ (Amounts in thousands) March 31, 2024      March 31, 2023   ​ ​ ​      % of Total       ​ ​      % of Total   Segment Revenue ​ Revenue ​ Revenue ​  Revenue   Civil $ 84,273   29.3 %   $ 72,989   26.6 % Transportation   203,824   70.7 %     201,840   73.4 % Total revenue $ 288,097   100.0 %   $ 274,829   100.0 %
Schedule of gross profit by segment	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ (Amounts in thousands) March 31, 2024      March 31, 2023   ​ ​      % of Segment       ​ ​      % of Segment    Segment Gross Profit ​ Revenue ​ Gross Profit ​ Revenue   Civil $ 17,870   21.2 %   $ 8,766   12.0 % Transportation   2,551   1.3 %     10,177   5.0 % Gross profit $ 20,421   7.1 %   $ 18,943   6.9 %

Debt (Tables)	3 Months Ended
	Mar. 31, 2024
Debt
Schedule of long term debt	​ ​ ​ ​ ​ ​ ​ ​ As of (Amounts in thousands) March 31, 2024      December 31, 2023 Secured notes $ 206,892 ​ $ 210,197 Mortgage notes   667 ​   689 Revolving credit facility   95,000 ​   90,000 Total debt   302,559 ​   300,886 Unamortized deferred financing costs   (544) ​   (526) Total debt, net   302,015 ​   300,360 Less: Current portion   (46,425) ​   (48,454) Total long-term debt $ 255,590 ​   251,906

Remaining Unsatisfied Performance Obligations (Tables)	3 Months Ended
	Mar. 31, 2024
Remaining Unsatisfied Performance Obligations
Schedule of remaining unsatisfied performance obligations	​ ​ ​ ​ ​ ​ ​ ​ As of (Amounts in millions) March 31, 2024      March 31, 2023 Remaining Unsatisfied Performance Obligations $ 2,639 ​ $ 2,862

Cost and Estimated Earnings on Uncompleted Contracts (Tables)	3 Months Ended
	Mar. 31, 2024
Cost and Estimated Earnings on Uncompleted Contracts
Schedule of contract assets	​ ​ ​ ​ ​ ​ ​ ​ As of (Amounts in thousands) March 31, 2024      December 31, 2023 Costs in excess of billings $ 539,407 ​ $ 525,588 Costs to fulfill contracts, net   30,713 ​   28,614 Contract assets $ 570,120 ​ $ 554,202
Schedule of costs and estimated earnings on uncompleted contracts	​ ​ ​ ​ ​ ​ ​ ​ As of (Amounts in thousands) March 31, 2024      December 31, 2023 Costs incurred on uncompleted contracts $ 7,416,687 ​ $ 7,293,246 Estimated earnings   406,603 ​   456,852 Costs incurred and estimated earnings   7,823,290 ​   7,750,098 Less: billings to date   (7,469,066) ​   (7,417,861) Costs to fulfill contracts, net   30,713 ​   28,614 Net contract position $ 384,937 ​ $ 360,851
Schedule of net contract position	​ ​ ​ ​ ​ ​ ​ ​ As of (Amounts in thousands) March 31, 2024      December 31, 2023 Contract assets $ 570,120 ​ $ 554,202 Contract liabilities   (185,183) ​   (193,351) Net contract position $ 384,937 ​ $ 360,851
Schedule of condensed consolidated balance sheets	​ ​ ​ ​ ​ ​ ​ ​ As of (Amounts in thousands) March 31, 2024      December 31, 2023 Costs in excess of billings $ 225,121 ​ $ 208,203 Investments   98,222 ​   98,209 Claims asset total $ 323,343 ​ $ 306,412

Share-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2024
Share-Based Compensation
Schedule of changes in RSUs during the year:	A summary of the changes in our RSUs during the three months ended March 31, 2024 is as follows (shares in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 31, 2024 ​      RSUs      Weighted-Average Grant-Date Fair Value per RSU Outstanding, beginning balance ​ ​ 173,333 ​ $ 8.94 Granted ​ ​ 238,606   ​ 5.16 Vested ​ ​ (133,704)   ​ 6.62 Canceled ​ ​ (41,568) ​ ​ 8.32 Outstanding, ending balance ​ ​ 236,667 ​ $ 6.54

Loss per Share (Tables)	3 Months Ended
	Mar. 31, 2024
Loss per Share
Schedule of loss per share basic and diluted	Basic and diluted net loss per share for the three months ended March 31, 2024 and 2023 consisted of the following (in thousands, except shares and per share amounts): ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ March 31, 2024 ​ March 31, 2023 Numerator: ​ ​ ​ Net income (loss) $ 525 ​ $ (4,266) Less net income attributable to noncontrolling interests ​ 931 ​ ​ 398 Net loss attributable to common stockholders, basic and diluted ​ (406) ​ ​ (4,664) ​ ​ ​ ​ ​ ​ Denominator(1): ​ ​ ​ Weighted average common shares outstanding — basic ​ 47,925,072 ​ ​ 44,407,831 Weighted average common shares outstanding — diluted ​ 47,925,072 ​ ​ 44,407,831 ​ ​ ​ ​ ​ ​ Net loss per share — basic $ (0.01) ​ $ (0.11) Net loss per share — diluted $ (0.01) ​ $ (0.11)

Description of Business - Narrative (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2024 USD ($) subsidiary	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Description of Business
Number of subsidiaries | subsidiary	6
Employee retention credit refund received | $	$ 454	$ 87	$ 2,400

Basis of Presentation - Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023
Cash, Cash Equivalents and Restricted Cash
Cash and cash equivalents at beginning of period	$ 49,176		$ 57,915
Restricted cash at beginning of period	14,644		14,076
Cash, cash equivalents, and restricted cash at beginning of period	63,820	$ 43,551	71,991
Cash and cash equivalents at end of period	31,239	49,176
Restricted cash at end of period	15,278	14,644
Cash, cash equivalents, and restricted cash at end of period	$ 46,517	$ 63,820	$ 43,551

Basis of Presentation - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($) item	Dec. 31, 2023 USD ($)
Basis of Presentation
Number of reporting units | item	3
Allowance for credit losses | $	$ 1.2	$ 1.3

Recapitalization (Details) - USD ($) $ / shares in Units, $ in Millions				3 Months Ended
	Apr. 27, 2023	Feb. 14, 2023	Feb. 13, 2023	Mar. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Shares issued to former members		33,793,111
Net proceeds received		$ 17.1
Dividend payable to members			$ 50.0
Transaction costs				$ 9.9
Common Stock, shares outstanding		44,407,831		48,025,688	47,891,984
Warrants outstanding		14,385,500
Exercise price (in dollars per share)		$ 11.50
Shares for attaining certain performance targets					10,344,828	10,344,828
Stock issued during the period (in shares)	3,448,283
Promissory note
Note expiration term			4 years
Interest rate (as a percent)			7.00%

Fair Value Measurements (Details) - Recurring - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Fair Value Measurements
Investments Noncurrent	$ 3,120	$ 3,235
Overall Total	3,120	3,235
Private equity
Fair Value Measurements
Investments Noncurrent	3,120	3,235
Level 3
Fair Value Measurements
Investments Noncurrent	3,120	3,235
Overall Total	3,120	3,235
Level 3 | Private equity
Fair Value Measurements
Investments Noncurrent	$ 3,120	$ 3,235

Revenue - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($) segment	Dec. 31, 2023 USD ($)
Revenue
Accrued loss provisions	$ 16.1	$ 17.3
Unapproved contract modifications	$ 162.9	$ 139.6
Number of reportable segments | segment	2
Percentage of revenue earned outside of the US	26.00%	23.00%

Revenue - Segment Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenue
Revenue	$ 288,097	$ 274,829
% of Total Revenue	100.00%	100.00%
Gross Profit	$ 20,421	$ 18,943
% of Segment Revenue	7.10%	6.90%
Civil
Revenue
Revenue	$ 84,273	$ 72,989
% of Total Revenue	29.30%	26.60%
Gross Profit	$ 17,870	$ 8,766
% of Segment Revenue	21.20%	12.00%
Transportation
Revenue
Revenue	$ 203,824	$ 201,840
% of Total Revenue	70.70%	73.40%
Gross Profit	$ 2,551	$ 10,177
% of Segment Revenue	1.30%	5.00%

Debt - Components (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt
Total debt	$ 302,559	$ 300,886
Unamortized deferred financing costs	(544)	(526)
Total debt, net	302,015	300,360
Less: Current portion	(46,425)	(48,454)
Total long-term debt	255,590	251,906
Secured notes
Debt
Total debt	206,892	210,197
Mortgage notes
Debt
Total debt	667	689
Revolving credit facility
Debt
Total debt	$ 95,000	$ 90,000

Debt - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Jul. 31, 2023	Mar. 31, 2024	Dec. 31, 2023	Aug. 31, 2023	Dec. 31, 2022	Jul. 31, 2021
Debt
Weighted average interest rate on debt (as a percent)		6.21%	6.12%
Payments of Financing Costs		$ 75
Total debt		302,559	$ 300,886
Secured notes
Debt
Debt instrument face amount	$ 113,500
Loss on extinguishment of debt	$ 600
Interest rate (as a percent)	7.25%
Amount of debt refinanced	$ 76,400
Total debt		$ 206,892	210,197
Amortizing term	5 years
Deferred financing cost	$ 300
Bank service charges	$ 600
Secured notes | Minimum
Debt
Interest rate (as a percent)		1.29%
Secured notes | Maximum
Debt
Interest rate (as a percent)		8.00%
Mortgage notes
Debt
Total debt		$ 667	689
Mortgage notes | Minimum
Debt
Interest rate (as a percent)		3.84%
Mortgage notes | Maximum
Debt
Interest rate (as a percent)		5.99%
Revolving credit facility
Debt
Revolving credit facility		$ 95,000
Maximum available under facility		95,000			$ 100,000	$ 50,000
Cash collateral deposit		5,000
Total debt		$ 95,000	$ 90,000
Deferred financing cost				$ 300
Revolving credit facility | SOFR
Debt
Floor rate (as a percent)		0.90%
Margin rate		3.00%

Income Taxes - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($) subsidiary	Mar. 31, 2023 USD ($)
Income Taxes
Number of subsidiaries historically taxed as C-corporation | subsidiary	2
Federal statutory tax rate	21.00%
Effective tax rate	36.90%	(69.80%)
Income tax penalties and interest expense	$ 0.3
Increase in deferred tax assets and liabilities		$ 5.0
State income taxes - net of federal benefit		1.1
U.S. and state net deferred tax assets		$ 3.8

Remaining Unsatisfied Performance Obligations (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Remaining Unsatisfied Performance Obligations
Percentage of consolidated joint venture contracts	100.00%
Remaining Unsatisfied Performance Obligations	$ 2,639	$ 2,862
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-04-01
Remaining Unsatisfied Performance Obligations
Percentage of revenue expects to recognize	42.00%
Expected timing of satisfaction	12 months

Cost and Estimated Earnings on Uncompleted Contracts - Contract assets (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Cost and Estimated Earnings on Uncompleted Contracts
Costs in excess of billings	$ 539,407	$ 525,588
Costs to fulfill contracts, net	30,713	28,614
Contract assets	$ 570,120	$ 554,202

Cost and Estimated Earnings on Uncompleted Contracts - Costs and estimated earnings (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Cost and Estimated Earnings on Uncompleted Contracts
Costs incurred on uncompleted contracts	$ 7,416,687	$ 7,293,246
Estimated earnings	406,603	456,852
Costs incurred and estimated earnings	7,823,290	7,750,098
Less: billings to date	(7,469,066)	(7,417,861)
Costs to fulfill contracts, net	30,713	28,614
Net contract position	$ 384,937	$ 360,851

Cost and Estimated Earnings on Uncompleted Contracts - Net contract position (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Jan. 01, 2024	Dec. 31, 2023	Jan. 01, 2023
Cost and Estimated Earnings on Uncompleted Contracts
Contract assets	$ 570,120		$ 554,202
Contract liabilities	(185,183)	$ (193,400)	(193,351)	$ (131,600)
Net contract position	$ 384,937		$ 360,851

Cost and Estimated Earnings on Uncompleted Contracts - Consolidated balance sheets (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Cost and Estimated Earnings on Uncompleted Contracts
Costs in excess of billings	$ 225,121	$ 208,203
Investments	98,222	98,209
Claims asset total	$ 323,343	$ 306,412

Cost and Estimated Earnings on Uncompleted Contracts - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Jan. 01, 2024	Dec. 31, 2023	Jan. 01, 2023
Cost and Estimated Earnings on Uncompleted Contracts
Claims	$ 323,300			$ 306,400
Contract liabilities value	185,183		$ 193,400	$ 193,351	$ 131,600
Contract revenue recognized	$ 74,200	$ 93,500

Noncontrolling Interests Holders - Narrative (Details)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Oscar Renda
Noncontrolling Interests Holders
Noncontrolling Interests	84.70%	84.70%
Southland Technicore Mole
Noncontrolling Interests Holders
Noncontrolling Interests	65.00%	65.00%
Southland Astaldi
Noncontrolling Interests Holders
Noncontrolling Interests	70.00%	70.00%
American Bridge
Noncontrolling Interests Holders
Total contracted work responsible for	83.00%

Related Party Transactions (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Related parties
Accounts payable	$ 202,441		$ 162,464
Related Party
Related parties
Cost of construction, related parties	1,100	$ 500
Accounts payable	$ 2,600		$ 400

Share-Based Compensation - RSU (Details) - RSU shares in Thousands	3 Months Ended
	Mar. 31, 2024 $ / shares shares
RSU's
Outstanding, beginning balance | shares	173,333
Granted | shares	238,606
Vested | shares	(133,704)
Canceled | shares	(41,568)
Outstanding, ending balance | shares	236,667
Weighted-Average Grant-Date Fair Value per RSU
Outstanding, beginning balance | $ / shares	$ 8.94
Granted | $ / shares	5.16
Vested | $ / shares	6.62
Canceled | $ / shares	8.32
Outstanding, ending balance | $ / shares	$ 6.54

Share-Based Compensation - Narrative (Details) - RSU - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	May 24, 2022
Share-Based Compensation
Unrecognized compensation cost	$ 1.4
Weighted average remaining period of recognition	3 years 3 months 18 days
Selling, general and administrative expense
Share-Based Compensation
Compensation cost	$ 0.7
Equity Incentive Plan 2022
Share-Based Compensation
Shares reserved for future issuance (in shares)		2,220,392
Number of shares available for grant (in shares)	1,772,583

Loss per Share - Basic and diluted net loss per share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Numerator:
Net loss	$ 525	$ (4,266)
Less net income attributable to noncontrolling interests	931	398
Net loss attributable to common stockholders, basic	(406)	(4,664)
Net loss attributable to common stockholders, diluted	$ (406)	$ (4,664)
Weighted average shares outstanding
Weighted average common shares outstanding - basic (in shares)	47,925,072	44,407,831
Weighted average common shares outstanding - diluted (in shares)	47,925,072	44,407,831
Net loss per share - basic (in dollars per shares)	$ (0.01)	$ (0.11)
Net loss per share - diluted (in dollars per shares)	$ (0.01)	$ (0.11)

Loss per Share - Computation of diluted net loss per antidilutive (Details)	3 Months Ended
	Mar. 31, 2024 shares
Loss per Share
Antidilutive securities excluded from computation of earnings per share (in shares)	14,385,500

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Pay vs Performance Disclosure
Net Income (Loss)	$ (406)	$ (4,664)

Insider Trading Arrangements	3 Months Ended
	Mar. 31, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

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