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    SEC Form 10-Q filed by Sky Harbour Group Corporation

    5/13/25 4:03:20 PM ET
    $SKYH
    Real Estate
    Finance
    Get the next $SKYH alert in real time by email
    ysac20250331_10q.htm
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    Table of Contents



     

    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, 2025

    OR

    ☐

    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO

    Commission File Number: 001-39648

     

    Sky Harbour Group Corporation

    (Exact name of registrant as specified in its Charter)

    Delaware

    85-2732947

    (State or other jurisdiction of incorporation or organization)

    (I.R.S. Employer Identification No.)

      

    136 Tower Road, Suite 205

     

    Westchester County Airport

    White Plains, NY

    (Address of principal executive offices)

    10604

    (Zip Code)

      

    (212) 554-5990

    Registrant’s telephone number, including area code

     

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

        
         

    Title of Class

     

    Trading Symbols

     

    Name of Exchange on Which

    Registered

    Class A common stock, par value $0.0001 per share

     

    SKYH

     

    The New York Stock Exchange

    Warrants, each whole warrant exercisable for one share of Class A

    common stock at an exercise price of $11.50 per share

     

    SKYH WS

     

    The New York Stock Exchange

     

    Securities registered pursuant to Section 12(g) of the Act: None

     

    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 definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act).

     

    Large accelerated filer

    ☐

     

    Accelerated filer

    ☐

    Non-accelerated filer

    ☒

     

    Smaller reporting company

    ☒

    Emerging growth company

    ☒

       

     

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

     

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

     

    As of May 8, 2025, 33,835,373 shares of Class A common stock, par value $0.0001 per share, and 42,046,356 shares of Class B common stock, par value $0.0001 per share, were issued and outstanding, respectively.

     

     

    Table of Contents

     

     

     

    SKY HARBOUR GROUP CORPORATION

    TABLE OF CONTENTS

     

     

    Page

    PART I. FINANCIAL INFORMATION

    2

    Item 1.

    Financial Statements 

    2

    Item 2.

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

    22

    Item 3.

    Quantitative and Qualitative Disclosures About Market Risk 

    35

    Item 4.

    Controls and Procedures

    35

    PART II. OTHER INFORMATION

    36

    Item 1.

    Legal Proceedings

    36

    Item 1A.

    Risk Factors

    36

    Item 2.

    Unregistered Sales of Equity Securities and Use of Proceeds

    36

    Item 3.

    Defaults Upon Senior Securities

    36

    Item 4.

    Mine Safety Disclosures

    36

    Item 5.

    Other Information

    36

    Item 6.

    Exhibits

    37
     

    Exhibit Index

    37
     

    Signatures

    38

     

     

    Table of Contents

     

     

    ITEM 1.

    FINANCIAL STATEMENTS

     

    SKY HARBOUR GROUP CORPORATION AND SUBSIDIARIES

    CONSOLIDATED BALANCE SHEETS

    (in thousands, except share data)

     

      

    March 31, 2025

      

    December 31, 2024

     
      

    (unaudited)

      

    (audited)

     

    Assets

            

    Cash

     $51,134  $42,442 

    Restricted cash

      32,516   51,917 

    Investments

      -   18,987 

    Restricted investments

      13,814   13,816 

    Accounts receivable, prepaid expenses, and other assets

      9,520   8,624 

    Cost of construction

      103,721   144,900 

    Constructed assets, net

      173,588   110,302 

    Right-of-use assets

      149,244   147,831 

    Long-lived assets, net

      17,203   14,732 

    Lease intangible assets, net

      2,931   3,005 

    Total assets

     $553,671  $556,556 
             

    Liabilities and equity

            

    Accounts payable, accrued expenses and other liabilities

     $28,397  $27,655 

    Operating lease liabilities

      155,691   152,797 

    Loans payable and finance lease liabilities

      7,104   7,535 

    Bonds payable, net of debt issuance costs and premiums

      162,670   162,621 

    Warrants liability

      48,658   46,130 

    Total liabilities

      402,520   396,738 
             

    Commitments and contingencies (Note 15)

              
             

    Stockholders’ equity

            

    Preferred stock; $0.0001 par value; 10,000,000 shares authorized as of March 31, 2025; none issued and outstanding

      -   - 

    Class A common stock, $0.0001 par value; 200,000,000 shares authorized; 33,793,886 and 33,456,227 shares issued and outstanding as of March 31, 2025 and December 31, 2024, respectively

      3   3 

    Class B common stock, $0.0001 par value; 50,000,000 shares authorized; 42,046,356 and 42,046,356 shares issued and outstanding as of March 31, 2025 and December 31, 2024, respectively

      4   4 

    Additional paid-in capital

      169,176   168,634 

    Accumulated deficit

      (70,968)  (64,592)

    Accumulated other comprehensive income

      -   53 

    Total Sky Harbour Group Corporation stockholders’ equity

      98,215   104,102 
             

    Non-controlling interests

      52,936   55,716 

    Total equity

      151,151   159,818 
             

    Total liabilities and equity

     $553,671  $556,556 
     

     

    See accompanying Notes to Unaudited Consolidated Financial Statements

     

    2

    Table of Contents

     

     

    SKY HARBOUR GROUP CORPORATION AND SUBSIDIARIES

    CONSOLIDATED STATEMENTS OF OPERATIONS

    (in thousands, except per share data)

    (Unaudited)

     

       

    Three Months Ended

     
       

    March 31, 2025

       

    March 31, 2024

     

    Revenue:

                   

    Rental revenue

      $ 4,461     $ 2,138  

    Fuel revenue

        1,132       266  

    Total revenue

        5,593       2,404  
                     

    Expenses:

                   

    Campus operating expenses

        1,884       779  

    Fuel expenses

        734       73  

    Ground lease expenses

        2,904       1,231  

    Depreciation and amortization

        1,099       629  

    Pursuit and marketing expenses

        580       354  

    Employee compensation and benefits

        4,239       3,592  

    General and administrative expenses

        976       970  

    Total expenses

        12,416       7,628  
                     

    Operating loss

        (6,823 )     (5,224 )
                     

    Other (income) expense:

                   

    Interest expense

        138       194  

    Unrealized loss on warrants

        2,528       16,188  

    Other income

        (363 )     (407 )

    Total other (income) expense

        2,303       15,975  
                     

    Net loss

        (9,126 )     (21,199 )
                     

    Net loss attributable to non-controlling interests

        (2,750 )     (2,259 )

    Net loss attributable to Sky Harbour Group Corporation shareholders

      $ (6,376 )   $ (18,940 )
                     

    Loss per share

                   

    Basic

      $ (0.19 )   $ (0.78 )

    Diluted

      $ (0.19 )   $ (0.78 )

    Weighted average shares

                   

    Basic

        33,665       24,274  

    Diluted

        33,665       24,274  

     

     

    See accompanying Notes to Unaudited Consolidated Financial Statements

     

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    SKY HARBOUR GROUP CORPORATION AND SUBSIDIARIES

    CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

    (in thousands)

    (Unaudited)

     

       

    Three Months Ended

     
       

    March 31, 2025

        March 31, 2024  

    Net loss

      $ (9,126 )   $ (21,199 )

    Unrealized gains on available-for-sale securities

        -       395  

    Realized gains on available-for-sale securities reclassified to the consolidated statements of operations

        (53 )     (17 )

    Total comprehensive loss

      $ (9,179 )   $ (20,821 )

     

    See accompanying Notes to Unaudited Consolidated Financial Statements

     

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    SKY HARBOUR GROUP CORPORATION AND SUBSIDIARIES

    CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

    (in thousands, except share data)

    (Unaudited)

     

      

    Class A

      

    Class B

      

    Additional

          

    Accumulated Other

      

    Total

      

    Non-

         
      

    Common Stock

      

    Common Stock

      

    Paid-in

      

    Accumulated

      

    Comprehensive

      

    Stockholders’

      

    Controlling

      

    Total

     
      

    Shares

      

    Amount

      

    Shares

      

    Amount

      

    Capital

      

    Deficit

      

    Income (Loss)

      

    Equity

      

    Interests

      

    Equity

     

    Balance at December 31, 2024

      33,456,227  $3   42,046,356  $4  $168,634  $(64,592) $53   104,102  $55,716  $159,818 

    Share-based compensation

      -   -   -   -   1,193   -   -   1,193   45   1,238 

    Vesting of restricted stock units

      201,207   -   -   -   -   -   -   -   -   - 

    Shares withheld for payment of employee taxes

      (59,548)  -   -   -   (661)  -   -   (661)  -   (661)

    Payment of equity issuance costs

      -   -   -   -   (65)  -   -   (65)  -   (65)

    Exchange of Sky Incentive Units

      196,000   -   -   -   75   -   -   75   (75)  - 

    Other comprehensive income

      -   -   -   -   -   -   (53)  (53)  -   (53)

    Net loss

      -   -   -   -   -   (6,376)  -   (6,376)  (2,750)  (9,126)

    Balance at March 31, 2025

      33,793,886  $3   42,046,356  $4  $169,176  $(70,968) $-  $98,215  $52,936  $151,151 

     

     

      

    Class A

      

    Class B

      

    Additional

          

    Accumulated Other

      

    Total

      

    Non-

      

    Total

     
      

    Common Stock

      

    Common Stock

      

    Paid-in

      

    Accumulated

      

    Comprehensive

      

    Stockholders’

      

    Controlling

      

    Equity

     
      

    Shares

      

    Amount

      

    Shares

      

    Amount

      

    Capital

      

    Deficit

      

    Income (Loss)

      

    Equity

      

    Interests

      

    (Deficit)

     

    Balance at December 31, 2023

      24,165,523  $2   42,046,356  $4  $88,198  $(19,361) $312   69,155  $63,091  $132,246 

    Share-based compensation

      -   -   -   -   987   -   -   987   45   1,032 

    Vesting of restricted stock units

      176,166   -   -   -       -   -   -   -   - 

    Shares withheld for payment of employee taxes

      (57,833)  -   -   -   (686)  -   -   (686)  -   (686)

    Exercise of warrants

      253,703   -   -   -   3,332   -   -   3,332   -   3,332 

    Payment of equity issuance costs

      -   -   -   -   (43)  -   -   (43)  -   (43)

    Other comprehensive income

      -   -   -   -   -   -   378   378   -   378 

    Net loss

      -   -   -   -   -   (18,940)  -   (18,940)  (2,259)  (21,199)

    Balance at March 31, 2024

      24,537,559  $2   42,046,356  $4  $91,788  $(38,301) $690  $54,183  $60,877  $115,060 

     

    See accompanying Notes to Unaudited Consolidated Financial Statements

     

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    SKY HARBOUR GROUP CORPORATION AND SUBSIDIARIES

    CONSOLIDATED STATEMENTS OF CASH FLOWS

    (in thousands)

    (Unaudited)

     

       

    Three months ended

     
       

    March 31, 2025

       

    March 31, 2024

     

    Cash flows from operating activities:

                   

    Net loss

      $ (9,126 )   $ (21,199 )

    Adjustments to reconcile net loss to net cash used in operating activities:

                   

    Depreciation and amortization

        1,099       629  

    Straight-line rent adjustments, net

        (308 )     (19 )

    Equity-based compensation

        1,238       1,032  

    Non-cash operating lease expense

        1,481       799  

    Realized gain on available for sale investments

        (41 )     -  

    Loss on disposition of assets

        25       -  

    Unrealized loss on warrants

        2,528       16,188  

    Changes in operating assets and liabilities:

                   

    Accounts receivable, prepaid expenses, and other assets

        (529 )     (703 )

    Right-of-use asset initial direct costs

        -       (3 )

    Accounts payable, accrued expenses, and other liabilities

        (1,417 )     (1,154 )

    Net cash used in operating activities

        (5,050 )     (4,430 )
                     

    Cash flows from investing activities:

                   

    Purchases of long-lived assets

        (3,475 )     (326 )

    Payments for cost of construction

        (20,229 )     (9,068 )

    Proceeds from disposition of long-lived assets

        353       -  

    Investment in notes receivable, net

        (121 )     -  

    Purchases of available for sale investments

        (50,997 )     (95,790 )

    Proceeds from available for sale investments

        69,972       71,061  

    Proceeds from held-to-maturity investments

        -       67,997  

    Net cash (used in) provided by investing activities

        (4,497 )     33,874  
                     

    Cash flows from financing activities:

                   

    Proceeds from exercise of warrants

        -       1,474  

    Proceeds from ATM Facility

        -       -  

    Principal payments for loans payable and finance leases

        (431 )     (446 )

    Payments for equity issuance costs

        (70 )     (43 )

    Payments of employee taxes related to vested equity awards

        (661 )     (686 )

    Net cash (used in) provided by financing activities

        (1,162 )     299  
                     

    Net increase (decrease) in cash and restricted cash

        (10,709 )     29,743  
                     

    Cash and restricted cash, beginning of year

        94,359       72,266  
                     

    Cash and restricted cash, end of period

      $ 83,650     $ 102,009  

     

    See accompanying Notes to Unaudited Consolidated Financial Statements

     

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    SKY HARBOUR GROUP CORPORATION AND SUBSIDIARIES

    NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

    March 31, 2025

    (in thousands, except share data)

     

     

    1.

    Organization and Business Operations

     

    Sky Harbour Group Corporation (“SHG”) is a holding company organized under the laws of the State of Delaware and, through its main operating subsidiary, Sky Harbour LLC and its subsidiaries (collectively, “Sky”), is an aviation infrastructure development company that develops, leases and manages general aviation hangars for business aircraft across the United States. Sky Harbour Group Corporation and its consolidated subsidiaries are collectively referred to as the “Company.”

     

    The Company is organized as an umbrella partnership-C corporation, or “Up-C”, structure in which substantially all of the operating assets of the Company are held by Sky and SHG’s only substantive assets are its equity interests in Sky (the “Sky Common Units”). As of March 31, 2025, SHG owned approximately 44.6% of the Sky Common Units and the prior holders of Sky Common Units (the “LLC Interests”) owned approximately 55.4% of the Sky Common Units and control the Company through their ownership of the Company's Class B Common Stock, $0.0001 par value (“Class B Common Stock”).

     

     

    2.

    Basis of Presentation and Summary of Significant Accounting Policies

     

    Basis of Presentation

     

    The accompanying unaudited consolidated financial statements and the related notes (the “Financial Statements”) have been prepared in conformity with the U.S. Securities and Exchange Commission (the “SEC”) requirements for quarterly reports on Form 10-Q, and consequently exclude certain disclosures normally included in audited consolidated financial statements prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”).These Financial Statements include the accounts of SHG and its consolidated subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. The Financial Statements should be read in conjunction with the audited consolidated financial statements and the notes contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024, which includes additional disclosures and a summary of the Company's significant accounting policies. In the Company’s opinion, these Financial Statements include all adjustments, consisting of normal recurring items, considered necessary by management to fairly state the Company’s results of operation, financial position, and cash flows.

     

    Certain historical amounts have been reclassified to conform to the current year’s presentation. Amounts previously presented as rental revenue are now separately disclosed as rental revenue and fuel revenue within the consolidated statement of operations. Amounts previously presented as operating expenses are now separately disclosed as campus operating expenses, fuel expenses, and ground lease expenses within the consolidated statement of operations. Amounts previously presented as general and administrative expenses are now separately disclosed as pursuit and marketing expenses, compensation and benefits, and general and administrative expenses within the consolidated statement of operations. These reclassifications had no effect on total revenue, total expenses, net loss, net loss per common share and had no impact on the Company’s consolidated balance sheets, statement of stockholders’ equity and statement of cash flows for the prior year period.

     

    Use of Estimates

     

    The preparation of consolidated financial statements in conformity with GAAP requires the Company to make estimates and assumptions that affect the reported amounts of assets and liabilities, 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 periods. Such estimates include assumptions used within impairment analyses, estimated useful lives of depreciable assets and amortizable costs, estimates of inputs utilized in determining the fair value of financial instruments such as warrants, estimates and assumptions related to right-of-use assets and operating lease liabilities, and estimates and assumptions used in the determination of the fair value of assets acquired and liabilities assumed in the business combination. Actual results could differ materially from those estimates.

     

    Risks and Uncertainties

     

    The Company’s operations have been limited to-date. For most of its history, the Company has been engaged in securing access to land through ground leases and developing and constructing aviation hangars. The major risks faced by the Company is its future ability to obtain additional tenants for the facilities that it constructs, and to contract with such tenants for rental income in an amount that is sufficient to meet the Company’s financial obligations, including increasing construction costs due to inflation and increased borrowing costs to the extent that the Company incurs additional indebtedness.

     

    Liquidity and Capital Resources

     

    As a result of ongoing construction projects and business development activities, including the development of aircraft hangars and the leasing of available hangar space, the Company has incurred recurring losses and negative cash flows from operating activities since its inception. The Company expects to continue to invest in such activities and generate operating losses in the near future.

     

    The Company obtained long-term financing through bond and equity offerings to fund its construction, lease, and operational commitments, and believes its liquidity is sufficient to allow continued operations for more than one year after the date these financial statements are issued.

     

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    Significant Accounting Policies

     

    Basis of Consolidation

     

    SHG is deemed to have a controlling interest of Sky through its appointment as the Managing Member of Sky, in which SHG has control over the affairs and decision-making of Sky. The interests in Sky not owned by the Company are presented as non-controlling interests. Sky’s ownership percentage in each of its consolidated subsidiaries is 100%, unless otherwise disclosed.

     

    Cost of Construction

     

    Cost of construction on the accompanying consolidated balance sheets is carried at cost. The cost of acquiring an asset includes the costs necessary to bring a capital project to the condition necessary for its intended use. Costs are capitalized once the construction of a specific capital project is probable. Construction labor and other direct costs of construction are capitalized. Professional fees for engineering, procurement, consulting, and other soft costs that are directly identifiable with the project and are considered an incremental direct cost are capitalized. Activities associated with internally manufactured hangar buildings, including materials, direct manufacturing labor, and manufacturing overhead directly identifiable with such activities are allocated to our construction projects and capitalized. The Company allocates a portion of its internal salaries to both capitalized cost of construction and to general and administrative expense based on the percentage of time certain employees worked in the related areas. Interest, net of the amortization of debt issuance costs and premiums, and net of interest income earned on bond proceeds, is also capitalized until the capital project is completed.

     

    Once a capital project is complete, the Company begins to depreciate the constructed asset on a straight-line basis over the lesser of the life of the asset or the remaining term of the related ground lease, including expected renewal terms.

     

     

    Leases

     

    The Company accounts for leases under Accounting Standards Codification (“ASC”) Topic 842, Leases. The Company determines whether a contract contains a lease at the inception of the contract. ASC Topic 842 requires lessees to recognize lease liabilities and right-of-use (“ROU”) assets for all operating leases with terms of more than 12 months on the consolidated balance sheets. The Company has made an accounting policy election to not recognize leases with an initial term of 12 months or less on the Company’s consolidated balance sheets and will result in recognizing those lease payments in the consolidated statements of operations on a straight-line basis over the lease term. When management determines that it is reasonably certain that the Company will exercise its options to renew the leases, the renewal terms are included in the lease term and the resulting ROU asset and lease liability balances.

     

    The Company has lease agreements with lease and non-lease components; the Company has elected the accounting policy to not separate lease and non-lease components for all underlying asset classes. The Company has not elected to capitalize any interest cost that is implicit within its operating leases into cost of construction on the consolidated balance sheet, but instead, expenses its ground lease cost as a component of operating expenses in the consolidated statements of operations.

     

    Warrants liability

     

    The Company accounts for its Warrants (as defined in Note 9 — Warrants) in accordance with the guidance contained in ASC Topic 815, “Derivatives and Hedging” (“ASC 815”), under which warrants that do not meet the criteria for equity classification and must be recorded as derivative liabilities. Accordingly, the Company classifies the Warrants as liabilities carried at their fair value and adjusts the warrants to fair value at each reporting period. This liability is subject to re-measurement at each balance sheet date until the warrants are exercised or expire, and any change in fair value is recognized in the consolidated statement of operations.

     

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    Revenue recognition

     

    The Company leases the hangar facilities that it constructs to third parties. The Company determines whether a contract contains a lease at the inception of the contract. The lease agreements are either on a month-to-month basis or have a defined term and   may have options to extend the term. Some of the leases contain options to terminate the lease by either party with given notice. The Company expects to continue to derive benefit from the underlying assets after the end of the lease term through further leasing arrangements. The underlying assets are the leasehold interest that the Company has in connection with its ground leases. There are no options given to the lessee to purchase the underlying assets.

     

    Rental revenue is recognized in accordance with ASC 842 and includes fixed payments of cash rents, which represents revenue each tenant pays in accordance with the terms of its respective lease and is recognized on a straight-line basis over the term of the lease. Rental revenue and the corresponding rent and other receivables are recorded net of any concessions and uncollectible tenant receivables for all periods presented. The Company evaluates the collectability of tenant receivables for payments required under the lease agreements. If the Company determines that collectability is not probable, the Company recognizes any difference between revenue amounts recognized to date under ASC 842 and payments that have been collected from the lessee, including any additional rent or lease termination fees, as a current period adjustment to rental revenue.

     

    Variable lease payments consist of tenant reimbursements for common area maintenance, utilities, and operating expenses of the property, and various other fees, including fees associated with the delivery of aircraft fuel, late fees, and lease termination fees. Variable lease payments are charged based on the terms and conditions included in the respective tenant leases and are recognized in the same period as the expenses are incurred. For the three months ended March 31, 2025, rental revenue and fuel revenue includes $325 and $426 of variable lease payments, respectively. For the three months ended March 31, 2024, rental revenue and fuel revenue includes $114 and $266 of variable lease payments, respectively.

     

    As of March 31, 2025 and December 31, 2024, the deferred rent receivable included in prepaid expenses and other assets was $834 and $594, respectively. Rent received in advance represents tenant payments received prior to the contractual due date, and is included in accounts payable, accrued expenses, and other liabilities. Rent received in advance consisted of $510 and $390 as of March 31, 2025 and December 31, 2024, respectively.

     

    At certain of the Company's hangar campuses, the Company recognizes revenue from ground-based services, such as the fueling and towing of aircraft. Revenue for the sale of aircraft fuel is recognized at the time customer obtains control of the fuel. Revenue for the sale of other ground-based services is recognized at the time the service is performed and provided to customers. Customers are invoiced at the time the services are performed and the associated revenue is recognized in the period it is earned. The Company's fueling arrangements generally are unique at each location it operates, and  may be accounted for on a gross or net basis. The Company determines whether to recognize fuel and services revenue on a gross or net basis based on consideration of various factors, including whether the Company has control of the products or services prior to delivery to customers, the Company's degree of latitude in establishing the sales price, whether the Company carries the associated inventory risk, and which party is the primary obligor within such sales arrangements. 

     

    For the three months ended March 31, 2025 and March 31, 2024, the Company did not derive 10% of its revenue from any single tenant.

     

    Income Taxes

     

    SHG is classified as a corporation for Federal income tax purposes and is subject to U.S. Federal and state income taxes. SHG includes in income, for U.S. Federal income tax purposes, its allocable portion of income from the “pass-through” entities in which it holds an interest, including Sky. The “pass-through” entities, are not subject to U.S. Federal and certain state income taxes at the entity level, and instead, the tax liabilities with respect to taxable income are passed through to the members, including SHG. As a result, prior to the Yellowstone Transaction, Sky was not subject to U.S. Federal and certain state income taxes at the entity level.

     

    The Company follows the asset and liability method of accounting for income taxes. This method gives consideration to the future tax consequences associated with the differences between the financial accounting and tax basis of the assets and liabilities as well as the ultimate realization of any deferred tax asset resulting from such differences, as well as from net operating losses and other tax-basis carryforwards. Valuation allowances are recorded to reduce deferred tax assets when it is more likely than not that a tax benefit will not be realized. When a valuation allowance is increased or decreased, a corresponding tax expense or benefit is recorded.

     

    The Company recorded income tax expense of $0 and the effective tax rate was 0.0% for the three months ended March 31, 2025 and 2024. The effective income tax rate for the three months ended March 31, 2025 and 2024 differs from the federal statutory rate of 21% primarily due to a full valuation allowance against net deferred tax assets as it is more likely than not that the deferred tax assets will not be realized due to the cumulative losses sustained by the Company to date.

     

    Recently Issued Accounting Pronouncements

     

    Income Taxes (Topic 740)

     

    In  December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The amendments in this update apply to all entities that are subject to Topic 740, Income Taxes. The standard requires disaggregated information about a reporting entity's effective tax rate reconciliation as well as information on income taxes paid. The amendments in this update are effective for annual periods beginning after  December 15, 2024. The guidance will be applied on a prospective basis with the option to apply the standard retrospectively. Early adoption is permitted. The Company is currently evaluating the impact of this updated standard on its disclosures to the consolidated financial statements.

     

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    3.

    Investments and Restricted Investments

     

    Investments of the Company's cash in various U.S. Treasury securities have been classified as available-for-sale and are carried at estimated fair value utilizing Level 1 inputs as determined based upon quoted market prices.

     

    Pursuant to provisions within the Master Indenture of the Series 2021 Bonds, as defined in Note 8 — Bonds payable, loans payable, and interest, the Company invests the funds held in the restricted trust bank accounts in various U.S. Treasury securities. Therefore, such investments are reported as “Restricted investments” in the accompanying consolidated balance sheets. Unrealized losses on certain of the Company's investments and restricted investments are primarily attributable to changes in interest rates. The Company does not believe the unrealized losses represent impairments because the unrealized losses are due to general market factors. The Company has not recognized an allowance for expected credit losses related to its investments or restricted investments as the Company has not identified any unrealized losses attributable to credit factors during the three months ended March 31, 2025. The held-to-maturity restricted investments are carried on the consolidated balance sheet at amortized cost. As of March 31, 2025, the Company has the ability and intent to hold these restricted investments until maturity, and as a result, the Company would not expect the value of these investments to decline significantly due to a sudden change in market interest rates. The fair value of the Company’s restricted investments is estimated utilizing Level 1 inputs including prices for U.S. Treasury securities with comparable maturities on active markets.

     

    The following tables set forth summaries of the amortized cost, unrealized gains, unrealized losses, and fair value by investment type as of March 31, 2025 and December 31, 2024:

     

      

    March 31, 2025

     
      

    Amortized Cost

      

    Gross Unrealized Gains

      

    Gross Unrealized Losses

      

    Estimated Fair Value

     
    Investments, available for sale:                
    U.S. Treasuries $-  $-  $-  $- 
    Total investments $-  $-  $-  $- 
                     

    Restricted investments, held-to-maturity:

                    
    U.S. Treasuries  13,814   108   (216)  13,706 
    Total restricted investments $13,814  $108  $(216) $13,706 

     

     

      

    December 31, 2024

     
      

    Amortized Cost

      

    Gross Unrealized Gains

      

    Gross Unrealized Losses

      

    Estimated Fair Value

     
    Investments, available for sale:                
    U.S. Treasuries $18,934  $53  $-  $18,987 
    Total investments $18,934  $53  $-  $18,987 
                     

    Restricted investments, held-to-maturity:

                    
    U.S. Treasuries  13,816   85   (353)  13,548 
    Total restricted investments $13,816  $85  $(353) $13,548 

     

    The following table sets forth the maturity profile of the Company's investments and restricted investments as of March 31, 2025:

     

      

    Investments

      

    Restricted Investments

     

    Due within one year

     $-  $2,356 

    Due one year through five years

      -   11,458 

    Total

     $-  $13,814 

     

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    4.

    Cost of Construction and Constructed Assets

     

    Constructed assets, net, and cost of construction, consists of the following:

     

      

    March 31, 2025

      

    December 31, 2024

     

    Constructed assets, net of accumulated depreciation:

            

    Buildings: BNA, CMA, DVT Phase I, OPF Phase I, SGR, and SJC Renovation

     $179,240  $115,151 

    Accumulated depreciation

      (5,652)  (4,849)
      $173,588  $110,302 

    Cost of construction:

            

    ADS Phase I, ADS Phase II, APA Phase I, BDL Phase I, OPF Phase II, ORL Phase I, and PWK Phase I

     $103,721  $144,900 

     

    Depreciation expense for the three months ended March 31, 2025 and 2024 totaled $803 and $448, respectively.

     

     

    5.

    Long-lived Assets and Lease Intangible Assets

     

    Long-lived assets, net, consists of the following:

     

      

    March 31, 2025

      

    December 31, 2024

     

    Ground support equipment

     $2,042  $1,644 

    Machinery and equipment

      5,600   4,903 

    Buildings

      5,434   5,434 

    Land

      1,620   1,620 

    Other equipment and fixtures

      1,115   966 

    Purchase deposits and construction in progress

      3,939   2,380 
       19,750   16,947 

    Accumulated depreciation

      (2,547)  (2,215)
      $17,203  $14,732 

     

    Depreciation expense for the three months ended March 31, 2025 and 2024 totaled $222 and $181, respectively. Capitalized depreciation of long-lived assets included in cost of construction totaled $301 and $136 for the three months ended March 31, 2025 and 2024, respectively. As of March 31, 2025 and December 31, 2024, long-lived assets included approximately $3,939 and $2,380, respectively, of purchase deposits towards long-lived assets which are not being depreciated as the assets have not been placed into service.

     

    Lease intangible assets, net, consists of the following:

     

      

    March 31, 2025

      

    December 31, 2024

     

    Acquired in-place lease

     $1,878  $1,878 

    Above market leases

      1,151   1,151 
       3,029   3,029 

    Accumulated amortization

      (98)  (24)

    Total operating lease expense

     $2,931  $3,005 

     

    Amortization expense for the three months ended  March 31, 2025 and 2024 totaled $74 and $0, respectively.

     

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    6.

    Supplemental Balance Sheet and Cash Flow Information

     

    Accounts payable, accrued expenses and other liabilities

     

    Accounts payable, accrued expenses and other liabilities, consists of the following:

     

      

    March 31, 2025

      

    December 31, 2024

     

    Costs of construction

     $19,394  $14,267 

    Employee compensation and benefits

      1,148   2,746 

    Interest

      1,739   3,474 

    Professional fees

      1,091   1,149 

    Property Taxes

      818   969 

    Tenant security deposits

      923   1,036 

    Other

      3,284   4,014 
      $28,397  $27,655 

     

    Supplemental Cash Flow Information

     

    The following table summarizes non-cash investing and financing activities:

     

      

    Three months ended

     
      

    March 31, 2025

      

    March 31, 2024

     

    Accrued costs of construction, including capitalized interest

     $13,469  $5,769 

    Accrued costs of long-lived assets

      639   - 

    Proceeds receivable from exercise of warrants

      -   1,444 

    Debt issuance costs and premium amortized to cost of construction

      49   51 

     

    The following table summarizes non-cash activities associated with the Company’s operating leases:

     

      

    Three months ended

     
      

    March 31, 2025

      

    March 31, 2024

     

    Right-of-use assets obtained in exchange for operating lease liabilities

     $2,373  $46,422 

    Net increase in right-of-use assets and operating lease liabilities due to lease remeasurement

      -   70 

     

    The following table summarizes interest paid:

     

      

    Three months ended

     
      

    March 31, 2025

      

    March 31, 2024

     

    Interest paid

     $3,608  $3,664 

     

    The following table provides a reconciliation of cash and restricted cash reported within the consolidated balance sheets to the total shown within the consolidated statements of cash flows:

     

      

    Three months ended

     
      

    March 31, 2025

      

    March 31, 2024

     

    Cash, beginning of year

     $42,442  $60,257 

    Restricted cash, beginning of year

      51,917   12,009 

    Cash and restricted cash, beginning of year

     $94,359  $72,266 
             

    Cash, end of period

     $51,134  $2,556 

    Restricted cash, end of period

      32,516   99,453 

    Cash and restricted cash, end of period

     $83,650  $102,009 

     

    12

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    7.

    Leases

     

    Lessee

     

    The table below sets forth a summary of operating lease expense for the three months ended March 31, 2025 and 2024 recorded in the captions within our consolidated statement of operations:

     

      

    Three months ended

     
      

    March 31, 2025

      March 31, 2024 

    Ground lease expenses

     $2,904  $1,231 
    Fuel expenses  164   44 

    General and administrative expenses

      28   27 

    Total operating lease expense

     $3,096  $1,302 

     

    The Company’s ground leases at airports are classified as operating leases under ASC Topic 842. Management has determined that it is reasonably certain that the Company will exercise its options to renew the leases, and therefore the renewal options are included in the lease term and the resulting ROU asset and operating lease liability balances. As the Company’s lease agreements do not provide a readily determinable implicit rate, nor is the rate available to the Company from its lessors, the Company uses its incremental borrowing rate to determine the present value of the lease payments. In addition to the Company’s ground leases, the Company has operating leases for office space and ground support vehicles, and finance leases for vehicles supporting operations at our pre-engineered metal building subsidiary.

     

    The Company’s lease population does not include any residual value guarantees. The Company has operating leases that contain variable payments, most commonly in the form of common area maintenance and operating expense charges, which are based on actual costs incurred. These variable payments were excluded from the calculation of the ROU asset and operating lease liability balances since they are not fixed or in-substance fixed payments. These variable payments were not material in amount for the three months ended March 31, 2025 and 2024. Some of the leases contain covenants that require the Company to construct the hangar facilities on the leased grounds within a certain period and spend a set minimum dollar amount. For one of the leases, the shortfall (if any) must be paid to the lessor. See Note 15 — Commitments and Contingencies.

     

    The Company’s ground leases have remaining terms ranging between 16 to 73 years, including options for the Company to extend the terms. These leases expire between 2040 and 2097, which include all lease extension options available to the Company. Certain of the Company's ground leases contain options to lease additional parcels of land at the Company's option within a specified period of time.

     

    On  January 1, 2025, the Company executed a lease amendment with respect to its ground lease at APA to add an approximately 1 acre parcel of land to the existing lease (the “APA Lease Amendment”). The land associated with the APA Lease Amendment became immediately available for possession in   January 2025 and is co-terminus with the other parcels covered by the Company's ground lease at APA.

     

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    Supplemental consolidated cash flow information related to the Company’s leases was as follows: 

     

      

    Three months ended

     
      

    March 31,

      

    March 31,

     
      

    2025

      

    2024

     

    Cash paid for amounts included in measurement of lease liabilities:

            

    Operating cash flows from operating leases

     $1,558  $482 

    Operating cash flows from finance leases

      1   1 

    Financing cash flows from finance leases

      5   7 

     

    Supplemental consolidated balance sheet information related to the Company’s leases was as follows: 

     

    Weighted Average Remaining Lease Term (in years)

     

    March 31, 2025

      

    December 31, 2024

     

    Operating leases

            

    Ground leases - Unimproved at commencement

      54.7   54.6 

    Ground leases - Existing improvements

      30.8   31.0 

    Equipment leases

      5.0   5.2 

    Office leases

      0.8   1.1 

    All operating leases

      44.7   44.6 

    Finance leases

      1.6   1.9 
             

    Weighted Average Discount Rate

            

    Operating leases

            

    Ground leases - Unimproved at commencement

      5.43%  5.45%

    Ground leases - Existing improvements

      5.18%  5.18%

    Equipment leases

      5.51%  5.46%

    Office leases

      4.82%  4.82%

    All operating leases

      5.38%  5.39%

    Finance leases

      4.98%  4.98%

     

    The Company’s future minimum lease payments required under leases as of  March 31, 2025 were as follows: 

     

    Year Ending December 31, 

    Operating Leases

      Finance Leases 

    2025 (remainder of year)

     $4,928  $18 
    2026  7,602   17 
    2027  8,448   2 
    2028  8,822   - 
    2029  9,197   - 
    Thereafter  490,013   - 
    Total lease payments  529,010   37 

    Less imputed interest

      (373,319)   (1)

    Total

     $155,691  $36 

     

     

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    Lessor

     

    The Company leases the hangar facilities that it constructs or rents from municipal landlords to third-party tenants. These leases have been classified as operating leases. The Company does not have any leases classified as sales-type or direct financing leases. Lease agreements with tenants are either on a month-to-month basis or have a defined term with an option to extend the term. The defined term leases vary in length from one to ten years with options to renew for additional term(s) given to the lessee. There are no options given to the lessee to purchase the underlying assets.

     

    The leases may contain variable fees, most commonly in the form of tenant reimbursements, which are recoveries of the common area maintenance and operating expenses of the property and are recognized as income in the same period as the expenses are incurred. The leases did not have any initial direct costs. The leases do not contain any restrictions or covenants to incur additional financial obligations by the lessee.

     

    Tenant leases to which the Company is the lessor require the following non-cancelable future minimum lease payments from tenants as of  March 31, 2025:

     

    Year Ending December 31,

     

    Operating Leases

     

    2025 (remainder of year)

     $11,394 

    2026

      13,024 

    2027

      9,620 

    2028

      7,170 

    2029

      3,736 

    Thereafter

      16,017 

    Total

     $60,961 

     

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    8.

    Bonds payable, Loans payable, and Interest

     

    Bonds payable

     

    On May 20, 2021, Sky formed a new wholly-owned subsidiary, Sky Harbour Capital LLC (“SHC”), as a parent corporation to its wholly-owned subsidiaries that operate each of the aircraft hangar development sites under its ground leases. SHC and these subsidiaries form an Obligated Group (the “Obligated Group” or the “Borrowers”) under a series of bonds that were issued in September 2021 with a principal amount of $166.3 million (the “Series 2021 Bonds”). The members of the Obligated Group are jointly and severally liable under the Series 2021 Bonds. SHG and its other subsidiaries are not members of the Obligated Group and have no obligation to repay the bonds.

     

    The Series 2021 Bonds are payable pursuant to a loan agreement dated September 1, 2021 between the Public Finance Authority (of Wisconsin) and the Borrowers. The payments by the Borrowers under the loan agreement are secured by a Senior Master Indenture Promissory Note, Series 2021-1 issued by the Obligated Group under an indenture (the “Master Indenture”). The obligations of the Borrowers are collateralized by certain leasehold and subleasehold deeds of trust or mortgages on the Borrowers’ interests in the development sites and facilities being constructed at each airport where the Borrowers hold ground leases. In addition, the Borrowers have assigned, pledged and granted a first priority security interest in all funds held under the Master Indenture and all right, title and interest in the gross revenues of the Borrowers. Furthermore, Sky, Sky Harbour Holdings LLC and SHC have each pledged as collateral its respective ownership interest in any of the Borrowers.

     

    The Series 2021 Bonds have principal amounts, interest rates, and maturity dates as follow: $21.1 million bearing interest at 4.00%, due July 1, 2036; $30.4 million bearing interest at 4.00%, due July 1, 2041; and $114.8 million bearing interest at 4.25%, due July 1, 2054. The Series 2021 Bond that has a maturity date of July 1, 2036 was issued at a premium, and the Company received bond proceeds that were $0.2 million above its face value. The bond premium is being amortized as a reduction of interest expense over the life of the bond. Interest is payable on each January 1 and July 1, commencing January 1, 2022. Principal repayments due under the Series 2021 Bonds are paid annually, commencing July 1, 2032.

     

    On  March 22, 2023, SHC elected to modify the scope of the Series 2021 Bonds pursuant to the terms of the Master Indenture, in order to reallocate a portion of the proceeds of the Series 2021 Bonds to its project site located at ADS (the “ADS Project”) . In connection with the election to modify the scope of the Series 2021 PABs to include the ADS Project, (i) Addison Hangars LLC (“Sky Harbour Addison”) and OPF Hangars Landlord LLC (“OPF Hangars”) joined as members of the Obligated Group, (ii) Sky Harbour Holdings LLC contributed its membership interest in OPF Hangars to SHC, (iii) SHC pledged its equity interest in each of Sky Harbour Addison and OPF Hangars to the Master Trustee as security for the obligations under the Series 2021 Bonds, (iv) Sky Harbour Addison granted to the Master Trustee a mortgage on its leasehold interest in the real property comprising the ADS Project, (v) OPF Hangars granted the Master Trustee a mortgage on its leasehold interest in the real estate comprising the project located in Opa Locka, Florida, and (vi) Sky Harbour Services LLC, a wholly-owned subsidiary of the Company, has agreed to waive all management fees and development fees during the construction period of the projects associated with the Series 2021 Bonds.

     

    As of March 31, 2025 and December 31, 2024, the fair value of the Company’s Series 2021-1 Bonds was approximately $141.8 million and $143.8 million, respectively. As of March 31, 2025 and December 31, 2024, the fair value of the Company’s bonds is estimated utilizing Level 2 inputs including prices for the bonds on inactive markets.

     

    The following table summarizes the Company’s Bonds payable as of March 31, 2025 and December 31, 2024:

     

      

    March 31, 2025

      

    December 31, 2024

     

    Bonds payable:

            

    Series 2021 Bonds Principal

     $166,340  $166,340 

    Premium on bonds

      249   249 

    Bond proceeds

      166,589   166,589 

    Debt issuance costs

      (4,753)  (4,753)

    Accumulated amortization of debt issuance costs and accretion of bond premium

      834   785 

    Total Bonds payable, net

     $162,670  $162,621 

     

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    Loans Payable and Finance Leases

     

    The following table summarizes the Company's loans payable and finance lease liabilities as of March 31, 2025 and December 31, 2024:

     

     

       March 31, 2025  

    December 31, 2024

     
     

    Maturity Dates

     

    Weighted-Average Interest Rates

      

    Balance

      

    Weighted-Average Interest Rates

      

    Balance

     

    Vista Loan

    December 2025

      7.85% $6,838   8.43%  $7,224 

    Equipment loans

    August 2026 - September 2028

      7.98%  230   8.01%   270 

    Finance leases

    August 2026 - July 2027

      4.98%  36   5.00%   41 

    Total Loans payable and finance leases

      7.84% $7,104   8.47%  $7,535 

     

    Interest

     

    The following table sets forth the details of interest expense:

     

      

    Three months ended

     
      

    March 31, 2025

      

    March 31, 2024

     

    Interest

     $1,873  $1,929 

    Accretion of bond premium and amortization of debt issuance costs

      49   51 

    Total interest incurred

      1,922   1,980 

    Less: capitalized interest

      (1,784)  (1,786)

    Interest expense

     $138  $194 

     

     

    9.

    Warrants

     

    SHG's legal predecessor, Yellowstone Acquisition Company (“YAC”), issued to third-party investors 6,799,439 warrants which entitled the holder to purchase one share of Class A Common Stock at an exercise price of $11.50 per share (the “Public Warrants”). In addition, 7,719,779 private placement warrants were sold to BOC Yellowstone LLC (the “Sponsor”). Each Private Warrant allows the Sponsor to purchase one share of Class A Common Stock at an exercise price of $11.50 per share. The Public Warrants and Private Warrants remain outstanding under the same terms and conditions to purchase shares of the Company’s Class A Common Stock. The terms of the Private Warrants are identical to those of the Public Warrants, except for that so long as the Private Warrants are held by the Sponsor or its permitted transferees, they  may be exercised on a cashless basis.

     

    In connection with the Securities Purchase Agreement (the “2023 Purchase Agreement”) entered into on November 1, 2023 with certain investors, the Company issued to third-party investors 1,541,600 warrants (the “PIPE Warrants”, and together with the Public Warrants and the Private Warrants, the “Warrants”). The PIPE Warrants are equivalent in form and substance to the Company’s Public Warrants. 

     

    The Warrants contain an exercise price of $11.50 per share and expire on  January 25, 2027. The Company determined the fair value of its Public Warrants and PIPE Warrants based on the publicly listed trading price as of the valuation date. Accordingly, these warrants are classified as Level 1 financial instruments. As the terms of the Private Warrants are identical to those of the Public Warrants, the Company determined the fair value of its Private Warrants based on the publicly listed trading price of the Public Warrants as of the valuation date and have classified the Private Warrants as Level 2 financial instruments.

     

    No Warrants were exercised during the three months ended March 31, 2025. During the three months ended March 31, 2024, 253,703 Warrants were exercised, resulting in approximately $2.9 million of proceeds, of which approximately $1.4 million was receivable by the Company as of March 31, 2024. As of  March 31, 2025, 15,798,155 Warrants remain outstanding. 

     

    The closing price of the Warrants was $3.08 and $2.92 per warrant on  March 31, 2025 and  December 31, 2024, respectively. The aggregate fair value of the outstanding Warrants was approximately $48.7 million and $46.1 million as of  March 31, 2025 and  December 31, 2024, respectively. During the three months ended March 31, 2025 and 2024, the Company recorded an unrealized loss associated with the change in fair value of the Warrants of approximately $2.5 million and $16.2 million, respectively.

     

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    10.

    Equity

     

    Common Equity

     

    As of March 31, 2025, there were 33,793,886 and 42,046,356 shares of Class A Common Stock and Class B Common Stock outstanding, respectively. Holders of Class A Common Stock and Class B Common Stock vote together as a single class on all matters submitted to the stockholders for their vote or approval, except as required by applicable law. Holders of Class A Common Stock and Class B Common Stock are entitled to one vote per share on all matters submitted to the stockholders for their vote or approval.

     

    The holders of Class A Common Stock are entitled to receive dividends, as and if declared by the Company’s Board of Directors out of legally available funds. With respect to stock dividends, holders of Class A Common Stock must receive Class A Common Stock. The holders of Class B Common Stock do not have any right to receive dividends other than stock dividends consisting of shares of Class B Common Stock, as applicable, in each case paid proportionally with respect to each outstanding share of Class B Common Stock.

     

    Non-controlling interests

     

    The LLC Interests’ ownership in Sky is presented as non-controlling interests within the Equity section of the consolidated balance sheet as of March 31, 2025 and represents the Sky Common Units held by holders other than SHG. The holders of LLC Interests may exchange Sky Common Units along with an equal number of Class B Common Shares, for Class A Common Shares of the Company. The LLC Interests do not have the option to redeem their Sky Common Units for cash or a variable number of Class A Common Shares, nor does SHG have the option to settle a redemption in such a manner. As of March 31, 2025, the LLC interests owned approximately 55.4% of the Sky Common Units outstanding.

     

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    11.

    Equity Compensation

     

    Restricted Stock Units (“RSUs”)

     

    In February 2025, the Company granted time-based RSUs to certain employees under the Company’s 2022 Incentive Award Plan. 437,930 of time-based awards were granted at a grant date fair value of $11.15, which will vest ratably over a four-year period beginning on the first anniversary of the grant date and ending on February 18, 2029.

     

    During the three months ended March 31, 2025 and 2024, the Company recognized stock compensation expense of approximately $1.0 million and $0.9 million, respectively, associated with all RSU awards, which is recorded within employee compensation and benefits within the statement of operations. As of March 31, 2025, there are 1,132,444 unvested RSUs outstanding with a weighted average grant date fair value of $9.75. The unrecognized compensation costs associated with all unvested RSUs at March 31, 2025 was approximately $10.8 million that is expected to be recognized over a weighted-average future period of 3.0 years.

     

    Non-qualified Stock Options (“NSOs”)

     

    In February 2025, the Company granted to certain employees options to purchase 686,647 shares of Class A Common Stock at an exercise price of $11.07 under the Company's 2022 Incentive Award Plan. The NSOs vest ratably over a four-year period beginning on the sixth anniversary of the grant date and have a term of 10 years. The options were valued at $6.33 using a Black -Scholes pricing model. During the three months ended March 31, 2025 and 2024, the Company recognized stock compensation expense of approximately $0.2 million and $0.1 million, respectively, associated with all NSO awards. The unrecognized compensation costs associated with all unvested NSOs at March 31, 2025 was approximately $7.2 million that is expected to be recognized over a weighted-average future period of 8.5 years.

     

    Sky Incentive Units

     

    The Company recognized equity-based compensation expense relating to awarded equity units of Sky (the “Sky Incentive Units”) of $45 and $45 for the three months ended March 31, 2025 and 2024, respectively. Expense associated with the Sky Incentive Units is recorded within compensation and benefits within the statement of operations, and as a component of the non-controlling interest in the consolidated statement of changes in stockholders’ equity. As of March 31, 2025, there was less than $0.1 million of total unrecognized compensation expense that is expected to be recognized over a weighted-average future period of 0.2 years.

     

     

    12.

    Earnings (loss) per Share

     

    Basic earnings (loss) per share of Class A Common Stock is computed by dividing net income (loss) attributable to SHG by the weighted-average number of shares of Class A Common Stock outstanding during the period. Diluted net income (loss) per share of Class A Common Stock is computed by dividing net income (loss) attributable to SHG, adjusted for the assumed exchange of all potentially dilutive securities, by the weighted-average number of shares of Class A Common Stock outstanding adjusted to give effect to potentially dilutive shares using the treasury stock or if-converted method as appropriate. Shares of the Company’s Class B Common Stock do not participate in the earnings or losses of the Company and are therefore not participating securities. As such, separate presentation of basic and diluted earnings per share of Class B Common Stock under the two-class method has not been presented. 

     

      

    Three Months Ended

     
      March 31, 2025  March 31, 2024 

    Numerator:

            

    Net loss

     $(9,126) $(21,199)

    Less: Net loss attributable to non-controlling interests

      (2,750)  (2,259)

    Basic and diluted net loss attributable to Sky Harbour Group Corporation shareholders

      (6,376)  (18,940)
             

    Denominator:

            

    Basic and diluted weighted average shares of Class A Common Stock outstanding

      33,665   24,274 
             

    Loss per share of Class A Common Stock – Basic and diluted

     $(0.19) $(0.78)

     

    Potentially dilutive shares excluded from the weighted-average shares used to calculate the diluted net loss per common share due to the Company's net loss position were as follows (in thousands):

     

      

    Three Months Ended

     
      March 31, 2025  March 31, 2024 

    Shares subject to unvested restricted stock units

      1,132   1,130 
    Shares issuable upon the exercise of unvested stock options  1,125   439 

    Shares issuable upon the exercise of Warrants

      15,798   15,807 

    Shares issuable upon the exchange of Class B Common Stock

      42,046   42,046 

    Shares issuable upon the exercise and exchange of Sky Incentive Units

      1,860   2,808 

     

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    13.

    Accumulated Other Comprehensive Income

     

    The following table summarizes the components of Accumulated other comprehensive income:

     

      

    Unrealized gain on

    Available-for-sale

    Securities

      

    Total

     

    Balance as of December 31, 2024

     $53  $53 
    Other comprehensive income before reclassifications  -   - 

    Amounts reclassified to other (income) expense

      (53)  (53)

    Balance as of March 31, 2025

     $-  $- 

     

      

    Unrealized gain on

    Available-for-sale

    Securities

      

    Total

     

    Balance as of December 31, 2023

     $312  $312 
    Other comprehensive income before reclassifications  395   395 

    Amounts reclassified to other (income) expense

      (17)  (17)

    Balance as of March 31, 2024

     $690  $690 

     

     

    14.

    Segment Information

     

    The Company has one consolidated reportable segment. This segment derives revenues from customers through the leasing of home-basing aircraft hangars and through services and products ancillary to its leasing activities. As of March 31, 2025, the Company drives revenue entirely within the United States and manages the business activities on a consolidated basis.

     

    The determination of reportable operating segments is based on the Chief Operating Decision Maker’s (“CODM’s”) use of financial information provided for the purposes of assessing performance and making operating decisions. The Company's CODM is its founder and Chief Executive Officer. The CODM uses net income (loss) to allocate resources and assess the performance of the Company by comparing actual results to historical results and previously forecasted financial information and the allocation of budget between the expenses presented within the consolidated statement of operations. The measure of segment assets is reported on the consolidated balance sheet as total consolidated assets. All required significant financial segment information can be found within the consolidated financial statements.

     

     

    15.

    Commitments and Contingencies

     

    In addition to the lease payment commitments discussed in Note 7 — Leases, the ground leases to which the Company is a party contain covenants that require the Company to conduct construction of hangar facilities on the leased grounds within a certain period and in some cases, to spend a minimum dollar amount.

     

    The DVT Lease requires approximately $14.6 million of improvements to be made for the DVT Phase II project within 12-months after receiving permitting documents, but in no event later than  May 2026.

     

    The PWK Lease contains a requirement that the Company must commence construction within six months of the issuance of permits and must complete construction within 18 months of construction commencement. If the Company is unable to adhere to the prescribed timeline and unable to receive an extension from PWK, the PWK Lease is subject to termination.

     

    The SJC Lease contains customary milestones by which the Company must complete additional construction.

     

    The ORL Lease requires that the Company construct $30 million of improvements in its initial phase of construction within 24 months of the effective date of the lease. The ORL Lease contains other customary milestones by which the Company must commence and complete subsequent phases of construction.

     

    The SLC Lease requires that the Company make minimum capital improvements of $40 million.

     

    The TTN Lease requires that the Company make minimum capital improvements of $30 million.

     

    The Company has contracts for construction of the APA Phase I, DVT Phase I, ADS Phase I, and OPF Phase II projects. The Company  may terminate any of the contracts or suspend construction without cause. There are no termination penalties under such construction contracts.

     

    In addition to the matters described in this note, the Company is involved is various legal proceedings and claims in the ordinary course of its business. Although the Company cannot predict with certainty the ultimate resolution of these matters, which involve judgements that are inherently subjective, the Company does not expect that the ultimate disposition of such other contingencies or matters will materially affect its financial condition, results of operations or cash flows.

     

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    16.

    Related Party Transactions

     

    Loan and Security Agreement

     

    On  December 6, 2024, the Company entered into a revolving line of credit loan and security agreement (the “Loan and Security Agreement”), with a company controlled by the former owner of the Company's acquired subsidiaries at Camarillo Airport (“CMA”), who also serves as an independent contractor of the Company. The Company provided an initial loan commitment of $1.0 million and agreed to provide an additional $2.0 million of availability under a revolving line of credit to fund the working capital requirements of such company. The Loan and Security Agreement matures on  December 6, 2029, and bears interest at a the standard overnight financing right plus 2% per annum.

     

    As of March 31, 2025 and  December 31, 2024, the Company had loaned a total of $1.1 million and $1.0 million, respectively, to such company, the balance of which is presented as a component of accounts receivable, prepaid expenses, and other assets within the Company's consolidated balance sheet.

     

    Echo Echo Agreement

     

    On  September 20, 2021, the Company entered into a non-exclusive agreement with Echo Echo, LLC, a related party to the Founder and CEO, for the use of a Beechcraft Baron G58 aircraft. The effective date of the agreement was  September 8, 2021 and the agreement automatically renews annually. The agreement can be terminated without penalty if either party provides 35 days' written notice, or if the aircraft is sold or otherwise disposed of. The Company is charged per flight hour of use along with all direct operating costs. Additionally, the Company will also incur the pro rata share of maintenance, overhead and insurance costs of the aircraft.

     

    On  September 19, 2024, the Company entered into an additional non-exclusive agreement with Echo Echo, LLC for the use of an Epic E1000GX aircraft. The effective date of the agreement was  August 30, 2024 and the agreement automatically renews annually. The agreement can be terminated without penalty if either party provides 30 days' written notice, or if the aircraft is sold or otherwise disposed of. Additionally, the Company is responsible for reimbursing its pro rata share of the direct operating costs of the aircraft, exclusive of maintenance and insurance.

     

    For the three and three months ended March 31, 2025 and 2024, the Company recognized $149 and $69 of expense, respectively, within pursuit and marketing expenses under the terms of these agreements. The related liability is included in Accounts payable, accrued expenses and other liabilities on the consolidated balance sheet as of March 31, 2025.

     

     

     

    17.

    Subsequent Events

     

    In April 2025, the Company, through a wholly-owned subsidiary of the Company, entered into a ground lease agreement (the “HIO Lease”) at Hillsboro Airport (“HIO”) with the Port of Portland. The HIO Lease covers approximately 13 acres of property at HIO. The initial term of the HIO Lease will be 35 years from the later of certificate of occupancy or 18 months from the expiration of the diligence period, as defined in the HIO Lease, with lease payments commencing contemporaneously with the term. The HIO Lease contains an option exercisable by the Company to extend the HIO Lease for an additional 10 years following the expiration of the initial term.

     

    In April 2025, the Company, through a wholly-owned subsidiary of the Company, entered into a ground lease agreement (the “SWF Lease”) at New York Stewart International Airport (“SWF”) with the Port Authority of New York and New Jersey. The SWF Lease covers approximately 16 acres of property at SWF. The initial term of the SWF Lease will be 30 years, with lease payments commencing on the earlier of hangar occupancy or 36 months from the receipt of certain environmental approvals. The SWF Lease contains three options exercisable by the Company to extend the SWF Lease for an additional total of 15 years following the expiration of the initial term.

     

     

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    ITEM 2.

    MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

     

    The following analysis of our financial condition and results of operations should be read in conjunction with the consolidated financial statements and the notes included elsewhere in this Quarterly Report on Form 10-Q (this “Form 10-Q”), as well as the information contained in our Annual Report on Form 10-K for the year ended December 31, 2024, filed with the Securities Exchange Commission (the “SEC”) on March 27, 2025 (the “Form 10-K”), which is accessible on the SEC’s website at www.sec.gov.

     

    Cautionary Note Regarding Forward-Looking Statements

     

    This Form 10-Q contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). These forward-looking statements can be identified by the use of forward-looking terminology, including the words “believes,” “estimates,” “anticipates,” “expects,” “intends,” “plans,” “may,” “might,” “will,” “potential,” “projects,” “predicts,” “continue,” or “should,” or, in each case, their negative or other variations or comparable terminology. There can be no assurance that actual results will not materially differ from expectations. These statements are based on management’s current expectations, but actual results may differ materially due to various factors, including, but not limited to:

     

     

    •

    expectations regarding the Company’s strategies and future financial performance, including the Company’s future business plans or objectives, prospective performance and commercial opportunities and competitors, services, pricing, marketing plans, operating expenses, market trends, revenues, liquidity, cash flows and uses of cash, capital expenditures, and the Company’s ability to invest in growth initiatives;

       

     

     

    •

    the effects of general economic conditions, including inflation, rising interest rates, and availability of construction materials and labor for our development projects;

       

     

     

    •

    our limited operating history makes it difficult to predict future revenues and operating results;

       

     

     

    •

    our ability to implement our construction costs mitigation strategies;

       

     

     

    •

    changes in applicable laws or regulations;

       

     

     

    •

    the possibility that the Company may be adversely affected by other economic, business, and/or competitive factors; and

       

     

     

    •

    our financial performance.

     

    The forward-looking statements contained in this Form 10-Q are based on our current expectations and beliefs concerning future developments and their potential effects on us. Future developments affecting us may not be those that we have anticipated. These forward-looking statements involve a number of risks, uncertainties (some of which are beyond our control) and other assumptions that may cause actual results or performance to be materially different from those expressed or implied by these forward-looking statements. These risks and uncertainties include, but are not limited to, those factors described under the heading “Risk Factors” in the Form 10-K. Should one or more of these risks or uncertainties materialize, or should any of our assumptions prove incorrect, actual results may vary in material respects from those projected in these forward-looking statements. We undertake no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws. These risks and others described in the Form 10-K may not be exhaustive.

     

    By their nature, forward-looking statements involve risks and uncertainties because they relate to events and depend on circumstances that may or may not occur in the future. We caution you that forward-looking statements are not guarantees of future performance and that our actual results of operations, financial condition and liquidity, and developments in the industry in which we operate may differ materially from those made in or suggested by the forward-looking statements contained in this prospectus. In addition, even if our results or operations, financial condition and liquidity, and developments in the industry in which we operate are consistent with the forward-looking statements contained in this prospectus, those results or developments may not be indicative of results or developments in subsequent periods.

     

    Overview and Background

     

    We are an aviation infrastructure development company building the first nationwide network of home basing hangar campuses for business aircraft. We develop, lease and manage general aviation hangars across the United States, targeting airfields in markets with significant based aircraft populations and high hangar demand. Our home basing hangar campuses feature private and semi-private hangars and a full suite of dedicated services specifically optimized for home based, versus transient, aircraft.

     

    The physical footprint of the U.S. business aviation fleet grew by almost 36 million square feet in the past fourteen years, with hangar supply lagging dramatically, especially in key growth markets. As the fleet of private jets in the United States continues to grow, with recent new aircraft deliveries exceeding retirements, demand for hangar space is at a premium in part because new jets require taller tail clearances and more square footage of hangar space and the pace of new hangar construction has lagged behind the demand. The cumulative square footage of the business aircraft fleet in the United States increased 61% between 2010 and 2023. Moreover, over that same period, there was an 102% increase in the square footage of larger private jets – those with greater than a 24-foot tail height. A recent study conducted by a business aircraft manufacturer forecasted that business aircraft will only continue to grow in the next ten years, with up to 8,500 new business jet deliveries worth over $285 billion expected to be delivered between 2025 and 2034, with over two-thirds of the deliveries expected to be comprised of larger private jets. This forecast is further supported by data from the major business aviation manufacturers that suggest the current order backlog for new business aviation aircraft as of December 31, 2024 is over $52 billion, an increase of approximately 6% over the prior year.

     

    These larger footprint aircraft do not fit in much of the existing hangar infrastructure and impose stacking challenges and constraints in the traditional shared or community hangars operated by fixed-base operators (“FBO”). The addition of winglets (the vertical extensions on aircraft wingtips) on most modern business jets inhibits wing-over-wing storage. Aircraft hangars are in high demand and short supply, with some airports compiling waiting lists that can exceed several years.

     

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    We believe our scalable, real estate-centric business model is uniquely positioned to capture this market opportunity and address the increased imbalance between the supply and demand for private jet storage. We intend to capitalize on the existing hangar supply constraints at major U.S. airports by targeting high-end tenants in markets where there is a shortage of private and FBO hangar space, or where such hangars are or are becoming obsolete.

     

    We expect to realize economies of scale in construction through a prototype hangar design replicated at our home basing hangar campuses across the United States. This allows for centralized procurement, straightforward permitting processes, efficient development processes, and the best hangar in business aviation. Unlike a service company, our revenues are mostly derived from long-term rental agreements, offering stability and forward visibility of revenues and cash flows. This allows the Company to fund its development through the public bond market, providing capital efficiency and mitigating refinance risk.

     

    We seek to develop our home basing hangar campuses on long-term ground leases (or sub-leases thereof) at airports with suitable infrastructure serving metropolitan centers across the United States. We lease each of our properties under long-term ground leases.

     

    The table below presents certain information with respect to our portfolio of ground leases as of March 31, 2025.

     

    Airport

     

    IATA Code

     

    Location (City, State)

     

    Location (Metropolitan Center)

     

    Ground Lessor

     

    Ground Lease Acres

     

    Ground Lease Exp. Year

     

    Addison Airport

     

    ADS

     

    Addison, TX

     

    Dallas, TX

     

    Town of Addison

        12.5     2065  

    Bradley International Airport

     

    BDL

     

    Windsor Locks, CT

     

    Hartford, CT

     

    Connecticut Airport Authority

        8.0     2075  

    Camarillo Airport

     

    CMA

     

    Camarillo, CA

     

    Los Angeles, CA

     

    County of Ventura

        17.1     2073  

    Centennial Airport

     

    APA

     

    Englewood, CO

     

    Denver, CO

     

    Arapahoe County Public Airport Authority

     

     

    19.7  

     

    2097  

    Chicago Executive Airport

     

    PWK

     

    Wheeling, IL

     

    Chicago, IL

     

    Village of Wheeling and City of Prospect Heights

        15.0     2074  

    Hudson Valley Regional Airport

     

    POU

     

    Wappingers Falls, NY

     

    New York, NY

     

    County of Duchess

        7.1     2066  

    Miami-Opa Locka Executive Airport

     

    OPF

     

    Opa Locka, FL

     

    Miami, FL

     

    Miami-Dade County

        22.6     2079  

    Nashville International Airport

     

    BNA

     

    Nashville, TN

     

    Nashville, TN

     

    Metropolitan Nashville Airport Authority

        15.2     2070  

    Orlando Executive Airport

     

    ORL

     

    Orlando, FL

     

    Orlando, FL

     

    Greater Orlando Aviation Authority

     

     

    20.0  

     

    2074  

    Phoenix Deer Valley Airport

     

    DVT

     

    Phoenix, AZ

     

    Phoenix, AZ

     

    City of Phoenix

        15.4     2061  

    Salt Lake City International Airport

     

    SLC

     

    Salt Lake City, UT

     

    Salt Lake City, UT

     

    Salt Lake City Corporation

        8.4     2077  

    San José Mineta International Airport

     

    SJC

     

    San José, CA

     

    San José, CA

     

    City of San José

        6.5     2044  

    Sugar Land Regional Airport

     

    SGR

     

    Sugar Land, TX

     

    Houston, TX

     

    City of Sugar Land

        8.1     2049  

    Trenton-Mercer Airport

     

    TTN

     

    Ewing, NJ

     

    New York, NY - Philadelphia, PA

     

    County of Mercer

        11.8     2078  

    Washington Dulles International Airport

     

    IAD

     

    Dulles, VA

     

    Washington, DC

     

    Metropolitan Washington Airports Authority

        18.0     2084  

     

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    Table of Contents

     

    The following tables provide supplemental information regarding each of our home basing hangar campus properties in operation and in development:

     

    PROPERTIES IN OPERATION

     

    Facility

     

    Completion Date

     

    Hangars

       

    Rentable Square

    Footage

       

    % of Total Rentable

    Square Footage

       

    Occupancy at

    March 31, 2025

     

    SGR

     

    December 2020

        7       66,080       12.3

    %

        100.0 %

    BNA

     

    November 2022

        10       149,069       27.7

    %

        91.6 %
    OPF Phase I   February 2023     12       160,092       29.7 %     100.0 %
    SJC Renovation   Existing facility     1       41,464       7.7 %     100.0 %
    CMA   Existing facility     4       121,931       22.6 %     77.6 %

    Total/Weighted Average

            34       538,636       100.0

    %

        92.6

    %

     

    PROPERTIES IN DEVELOPMENT

     

        Projected Projected Estimated Total    
        Construction Completion Project Cost   Rentable

    Facility

    Status

    Start (1)

    Date (1)

    ($mm) (1)

    Hangars (1)

    Square Footage (1)

    ADS Phase I In Construction Q4 2023 Q2 2025 $32.9 - 34.9 6 137,835
    ADS Phase II Predevelopment Q2 2025 Q3 2026 21.3 - 25.2 4 116,420

    APA Phase I

    In Construction

    Q4 2022

    Q2 2025

    44.8 - 50.8

    9

    130,550

    APA Phase II

    Predevelopment

    Q4 2026

    Q1 2028

    34.3 - 38.3

    3

    107,135

    BDL Phase I Predevelopment Q2 2025 Q3 2026 26.8 - 33.1 3 125,400

    DVT Phase I

    In Construction

    Q4 2022

    Q2 2025

    51.3 - 56.6

    8

    134,270

    DVT Phase II

    Predevelopment

    Q1 2027

    Q2 2028

    34.6 - 38.6

    6

    123,646

    IAD Phase I Predevelopment Q2 2026 Q3 2027 61.6 - 67.3 4 206,800
    IAD Phase II Predevelopment TBD TBD TBD TBD TBD

    OPF Phase II

    In Construction

    Q1 2025

    Q2 2026

    34.1 - 36.8

    3

    155,100

    ORL Phase I Predevelopment Q1 2026 Q2 2027 36.8 - 41.5 3 155,100
    ORL Phase II Predevelopment TBD TBD TBD TBD TBD
    POU Phase I Predevelopment Q4 2025 Q4 2026 29.6 - 33.1 2 103,400
    POU Phase II Predevelopment Q4 2026 Q4 2027 14.8 - 16.5 1 51,700
    PWK Phase I Predevelopment Q2 2026 Q2 2027 85.8 - 90.1 4 206,800
    SJC Phase II Predevelopment Q2 2026 Q2 2027 21.0 - 24.0 1 28,235
    SLC Predevelopment Q4 2025 Q4 2026 44.9 - 49.7 4 206,800
    TTN Predevelopment Q4 2025 Q4 2026 44.4 - 49.6 3 171,300

    Total

         

    $619.0 - 686.1

    64

    2,160,491

     

     

    (1)

    Our projections associated with the commencement and completion of construction, estimated total construction cost, hangars, and rentable square footage of our properties in development are inherently subjective and require judgement to estimate. We believe that our estimates of construction costs and timelines are subject to variability based on various factors including, but not limited to, changes in anticipated site plans, hangar mix, hangar specifications, executed guaranteed maximum price construction contracts, and general market conditions.

     

    Recent Developments

     

    In March 2025, we entered into a rental agreement at King County International Airport (Boeing Field) with King County, Washington (the “BFI Lease”). The BFI Lease includes an approximately 92,495 square foot hangar complex and its initial term expires in February 2026. We intend to pursue the execution of a longer-term lease with King County during the initial term of the BFI Lease.

     

    In April 2025, we entered into the HIO Lease at HIO with the Port of Portland. The HIO Lease covers approximately 13 acres of property at HIO. The initial term of the HIO Lease will be 35 years from the later of certificate of occupancy or 18 months from the expiration of the diligence period, as defined in the HIO Lease, with lease payments commencing contemporaneously with the term. The HIO Lease contains an option exercisable by the Company to extend the HIO Lease for an additional 10 years following the expiration of the initial term.

     

    In April 2025, we entered into the SWF Lease at SWF with the Port Authority of New York and New Jersey. The SWF Lease covers approximately 16 acres of property at SWF. The initial term of the SWF Lease will be 30 years, with lease payments commencing on the earlier of hangar occupancy or 36 months from the receipt of certain environmental approvals. The SWF Lease contains three options exercisable by the Company to extend the SWF Lease for an additional total of 15 years following the expiration of the initial term.

     

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    Factors That May Influence Future Results of Operations

     

    Airfield and Tenant Portfolio Growth

     

    Our future success depends upon our ability to attract and retain tenants for hangars at our home basing hangar campuses. The extent to which we achieve growth in our customer base materially influences our business and results of operations. Any number of factors could affect our ability to grow our customer base, including tenant preferences for hangar space and related services, including size and location of the hangar, as well as general economic conditions. The level and volatility of fuel prices may also impact the general aviation industry and our ability to attract and retain tenants. In addition, our ability to attract and retain customers may be dependent on other factors outside of our control, including the future trend of private aircraft sizes and the availability of alternative hangars, including size, location and/or services provided. Any significant decline in our customer base, or in our rate of growth, could have a material adverse effect on our business and results of operations, which could, in turn, result in a decline in the trading price of our securities.

     

    Our ability to expand through new ground leases at airports is also integral to our long-term business strategy and requires that we identify and consummate suitable new ground leases or investment opportunities in real estate properties for our portfolio that meet our investment criteria and are compatible with our growth strategy. Our ability to enter into new ground leases on favorable terms, or at all, may be adversely affected by certain significant factors. We may not be able to negotiate new ground leases with airport authorities on attractive terms or at all, and we may encounter competition from other potential ground lessors, which could significantly increase the lease rate for properties we seek to lease. In our efforts to secure new ground leases, we may incur significant costs and divert management attention in connection with evaluating and negotiating such ground leases, including ground leases that we are subsequently unable to execute. In addition, even if we enter into letters of intent or conditional agreements for new ground leases of airport properties, these agreements are subject to customary closing conditions, including, but not limited to, the satisfactory results of our due diligence investigations and local government and municipal authority approvals. 

     

    Construction Material Costs and Labor

     

    When constructing our home basing hangar campuses, we use various materials, assemblies, and labor components. We contract for our materials and labor with various general contractors under guaranteed maximum price (GMP) contracts upon receipt of building permits. This allows us to mitigate certain inflationary pressures associated with increases in certain building materials and labor costs between the time construction begins at a hangar campus and the time it is completed. Typically, the materials and most of the components used to construct our hangar campuses are readily available in the United States, and we attempt to procure such materials from domestic sources where and when possible. We monitor the supply markets and ensure robust competition to achieve the best prices available. Typically, the price changes that most significantly influence our development operations are price increases in steel, concrete, and labor. In February 2025, the President of the United States issued an executive order reimposing tariffs on steel imports from all sources, ending country and product exemptions, and broadening the application of the tariffs to fabricated steel products. This order became effective on March 12, 2025. There can be no assurance as to when or if these or other import tariffs, quotas or other duties may be enacted, enforced, extended, modified or terminated in the future, or the extent of the impact of such tariffs will have on the cost of our construction materials. We believe that it is possible that market conditions, including recent and proposed changes in trade policies, may lead to continued increases in construction costs and market rental rates for hangars within our development projects. However, there can be no assurance that we will be able to increase the lease rates for the hangars within our hangar campuses to absorb these increased costs, if at all.

     

    In May 2023, we acquired a controlling interest in a metal building and hangar door manufacturer, that we expect will ultimately result in an increase in quality and a reduction in the overall cost of the metal building and hangar door components at future development projects. We expect that over time this vertical integration will enable us to deliver metal buildings to most of our development sites in shorter times as compared to the anticipated lead times associated with conventional metal building fabricators. We believe internal building fabrication will provide us opportunities to aggressively target continued schedule compression at most of our development projects in the future. In December 2023, we engaged several structural engineering firms to perform an independent peer review of the hangar buildings designed for our DVT Phase I and APA Phase I development projects. The independent peer reviews determined a significant design defect existed within our prototype hangar building designs that required retrofitting to both meet and exceed our standards and the respective local building codes. The anticipated retrofitting efforts were also applied to ADS Phase I, and we believe the aggregate additional cost of such retrofits totaled between $26 to $28 million. Such retrofitting efforts required an additional three to five months of construction duration for each project impacted. Given the design enhancements implemented at our APA Phase I, DVT Phase I, and ADS Phase I development projects, our total construction costs for these projects were each greater than our original estimates, and outside of the scope of the original guaranteed maximum price construction contracts. In March 2024, we funded the increase in estimated costs by contributing $27 million of our corporate cash holdings to SHC, thereby restricting the use of such cash to the project scope of the Series 2021 Bonds.

     

    Our projections associated with the commencement and completion of construction, estimated total construction cost, hangars, and rentable square footage of our properties in development are inherently subjective and require judgement to estimate. We believe that our estimates of construction costs and timelines are subject to variability based on various factors including, but not limited to, changes in anticipated site plans, hangar mix, hangar specifications, executed guaranteed maximum price construction contracts, and general market conditions. During 2024, we updated many of our preliminary estimates based on our intention to begin incorporating a larger hangar prototype into our home basing hangar campuses, which is intended to provide an increase in rentable square footage of hangar, office, and lounge space upon completion. This larger hangar prototype requires an increase in construction materials and components, and we expect its incorporation into multiple future development projects will ultimately result in cost savings through the realization of economies of scale. Our updated estimates of total construction costs do not include projections of potential cost reductions due to such efficiencies, and we continue to reevaluate our preliminary and updated estimates from time to time over the course of the development lifecycle. We intend to continue to aggressively mitigate inflationary pressures, reduce construction costs to the greatest extent possible, and pursue compressed development schedules. We currently structure our guaranteed maximum price construction contracts with shared savings clauses to incentivize the general contractors to reduce construction costs. No assurance can be given that our cost mitigation strategies will be successful, the costs of our ongoing and future projects will not exceed budgets or the guaranteed maximum price for such projects, or that the completion will not be delayed beyond the projected completion dates.

     

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    Increases in Market Interest Rates and Future Costs of Borrowing

     

    Economic conditions and actions by policymaking bodies contributed to rising interest rates, which, along with increases in our borrowing levels, could increase our future borrowing costs. While the Federal Reserve reduced interest rates in September, November, and December 2024 and has indicated the potential for further rate cuts, interest rates remain relatively high and there can be no certainty with respect to the occurrence, timing, or magnitude of further interest rate cuts by the Federal Reserve, and thus no certainty with respect to the ultimate impact on our borrowing costs. We expect to issue additional debt to finance future site developments and elevated interest rates would impact our overall economic performance. In addition, we are subject to credit spreads demanded by fixed income investors. As a non-rated issuer, increases in general of credit spreads in the market, or for us, may result in a higher cost of borrowing in the future. We intend to access the bond market on an opportunistic basis. In addition, we may hedge against rising benchmark interest rates by entering into hedging strategies with high quality counterparties.

     

    Current Capital Requirements and Future Expenditures for Expansion

     

    We previously funded SHC with over $200 million to fund the two phases at our initial five ground leased airport locations. We maintain the ability to include up to $50 million in new projects outside the original five locations to be funded with a portion of the existing proceeds held by the trustee as long as certain approvals and supplemental consultant reports are provided showing that such new project would result in better coverage of debt service than previously contemplated projects. We exercised this ability utilizing approximately $26 million of the $50 million available and received the requisite approvals and reports in March 2023 with respect to our ADS Phase I development project.

     

    We previously raised equity capital, along with potential future debt and further equity issuances, including the 2024 Purchase Agreement and 2023 Purchase Agreement (as defined herein) entered into on September 16, 2024 and November 1, 2023, respectively, see Liquidity and Capital Resources — Private Placement and Securities Purchase Agreement below, to begin to fund additional airport campuses and reach up to 20 airport campuses over the next several years. We also have the ability to access the capital markets through our ATM Facility and through our effective shelf registration statement on Form S-3. On average, each future campus is anticipated to be composed of 200,000 rentable square feet and is expected to cost approximately $60 million per campus, with 65% to 75% or more to be funded with additional private activity bonds or other indebtedness. All future hangar campus projects are discretionary and require us to identify the appropriate airports with the target hangar demand economics, secure required ground leases and permits, and complete future construction at such sites.

     

    The cumulative 20 airport site business plan is estimated to cost approximately $1.2 billion, with approximately 65% to 75% anticipated from private activity bonds and the balance with equity or equity-linked financing. Our ability to raise additional equity and/or debt financing will be subject to a number of risks, including our ability to obtain financing upon reasonable terms, if at all, costs of construction, delays in constructing new facilities, operating results, and other risk factors. In the event that we are unable to obtain additional financing, we may be required to raise additional equity capital, creating additional dilution to existing stockholders. There can be no assurance that we would be successful in raising such additional equity capital on favorable terms, if at all.  Even if we can obtain such additional equity financing if needed, there can be no assurance that we would be successful in raising such additional financing on favorable terms, if at all.

     

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    Key Business Metrics

     

    We focus on a variety of indicators and key operating and financial metrics to monitor the financial condition and performance of the continuing operations of our business. These metrics include:

     

    Metric

    Description

       

    Revenue

    The majority of our revenue is generated from rents and fees we earn pursuant to the lease and service agreements we enter into with our tenants. Our ability to achieve revenue growth depends upon our ability to attract and retain tenants for hangars at our home basing hangar campuses. The extent to which we achieve growth in our customer base materially influences our business and results of operations. Any number of factors could affect our ability to grow our customer base, including tenant preferences for hangar space and related services, including size and location of the hangar, as well as general economic conditions. Rental revenue is recognized in accordance with ASC Topic 842, Leases, and includes (i) fixed payments of cash rents, which represents revenue each tenant pays in accordance with the terms of its respective lease and is recognized on a straight-line basis over the term of the lease and (ii) variable payments of tenant reimbursements, which are recoveries of all or a portion of the common area maintenance and operating expenses of the property and are recognized in the same period as the expenses are incurred. We derive all of our revenue from tenants in the United States.

       

    Operating Expenses

    In addition to changes in our revenue, our operating results are affected by, among other things, the level of our operating expenses. One of our largest expenses are the payments payable under our ground leases. For the three months ended March 31, 2025 and 2024, we recognized expense related to ground leases of approximately $2.9 million and $1.2 million, respectively. We elect to expense rather than capitalize ground lease expense incurred at hangar campus sites under development and will incur expense under GAAP regardless of whether our ground leases defer cash rent payments until completion of construction. As we enter into new ground leases at new airport sites, our ground lease expense and associated cash payments to airport landlords will ultimately continue to increase into the future. If airport landlords increase the per acre cost of the ground lease of our target campuses, the operating margins at potential target developments may be impacted negatively. Other operating expenses reflected in our consolidated statement of operations are reflective of the professional, legal and consulting fees, compensation costs, and other general and administrative expenses, including those necessary to support our business as a public company such as expenses associated with corporate governance, SEC reporting, and other compliance matters. While we expect that such expenses will rise in some measure as our portfolio of hangar campuses grows, we expect that such expenses as a percentage of our portfolio will decrease over time due to efficiencies, economies of scale, insourcing of job functions, and cost control measures.

       

    Operating Income (Loss)

    The presentation of operating income (loss) provides a measure of performance which is useful for investors, analysts and other interested parties in company-to-company operating performance comparisons. Operating income (loss) is computed by deducting operating expenses from revenue.

       

    Net Income (Loss)

    The presentation of net income provides a measure of performance which are useful for investors, analysts and other interested parties in company-to-company operating performance comparisons. 

       

    Adjusted EBITDA

    We utilize Adjusted EBITDA to evaluate our operating and financial performance, which is supplemental in nature and a financial measure not calculated in accordance with GAAP. We define Adjusted EBITDA as net income before (i) depreciation and amortization expense, (ii) interest expense, (iii) interest income, (iv) non-cash stock-based compensation expense, (v) non-cash gains and losses resulting from the change in fair value of our liability-classified warrants, (vi) non-cash operating lease expense, (vii) non-cash operating lease income, (viii) provision for income taxes, (ix) other non-cash expenses, including, but not limited to, the impairment of long-lived assets, gains or losses arising from the disposition of assets, losses on extinguishment of debt, and other non-cash non-operating expenses. We believe Adjusted EBITDA is useful for investors, analysts and other interested parties as it provides a view of our operating performance, analyzes our ability to meet debt service obligations, and facilitates company-to-company operating performance comparisons by excluding potential differences caused by variations in capital structures, the age and book depreciation of assets, and equity-based incentive plans. Our method of calculating Adjusted EBITDA may differ from that utilized by other companies and therefore its comparability may be limited. See the section titled “Non-GAAP Financial Measures” below for more information and reconciliations to the most directly comparable GAAP financial measure.

       

    Net Cash Provided From (Used In) Operating Activities

    We focus on measures designed to monitor cash flow, including net cash provided from (used in) operating activities. The presentation of net cash provided from (used in) operating activities provides a measure of performance which are useful for investors, analysts and other interested parties in company-to-company operating performance comparisons. 

     

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    Critical Accounting Policies and Estimates

     

    The preparation of financial statements and related disclosures in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and expenses during the periods reported. Actual results could materially differ from those estimates. We have identified the following as our critical accounting policies:

     

    Use of Estimates

     

    The preparation of consolidated financial statements in conformity with GAAP requires the Company to make estimates and assumptions that affect the reported amounts of assets and liabilities, 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 periods. Such estimates include assumptions used within impairment analyses, estimated useful lives of depreciable assets and amortizable costs, estimates of inputs utilized in determining the fair value of financial instruments such as warrants, estimates and assumptions related to right-of-use assets and operating lease liabilities, and estimates and assumptions used in the determination of the fair value of assets acquired and liabilities assumed in the business combination. Actual results could differ materially from those estimates.

     

    Cost of Construction

     

    Cost of construction on the consolidated balance sheets is carried at cost. The cost of acquiring an asset includes the costs necessary to bring a capital project to the condition necessary for its intended use. Costs are capitalized once the construction of a specific capital project is probable. Construction labor and other direct costs of construction are capitalized. Professional fees for engineering, procurement, consulting, and other soft costs that are directly identifiable with the project and are considered an incremental direct cost are capitalized. We allocate a portion of our internal salaries to both capitalized cost of construction and to general and administrative expense based on the percentage of time certain employees worked in the related areas. Interest costs on the loans and bonds used to fund the capital projects are also capitalized until the capital project is completed. Once a capital project is complete, the cost of the capital project is reclassified to Constructed Assets on the accompanying balance sheet and we begin to depreciate the constructed asset on a straight-line basis over the lesser of the life of the asset or the remaining term of the related ground lease, including expected renewal terms.

     

    Leases

     

    We account for leases under Accounting Standards Codification (“ASC”) Topic 842, Leases. We determine whether a contract contains a lease at the inception of the contract. ASC Topic 842 requires lessees to recognize operating lease liabilities and right-of-use (“ROU”) assets for all leases with terms of more than 12 months on the consolidated balance sheets. We have made an accounting policy election that will keep leases with an initial term of 12 months or less off our consolidated balance sheets and will result in recognizing those lease payments in the consolidated statements of operations on a straight-line basis over the lease term. When management determines that it is reasonably certain that we will exercise our options to renew the leases, the renewal terms are included in the lease term and the resulting ROU asset and operating lease liability balances. We have elected to not capitalize any interest cost that is implicit within our operating leases into cost of construction on the consolidated balance sheet, but instead, we expense our ground lease cost in the consolidated statements of operations. 

     

    We have lease agreements with lease and non-lease components; we have elected the accounting policy to not separate lease and non-lease components for all underlying asset classes.

     

    Revenue Recognition

     

    We lease hangar facilities that we construct to third parties. The lease agreements are either on a month-to-month basis or have a defined term and may have options to extend the term. Some of the leases contain options to terminate the lease by either party with given notice. There are no options given to the lessee to purchase the underlying assets. Rental revenue is recognized in accordance with ASC Topic 842, Leases, and includes (i) fixed payments of cash rents, which represents revenue each tenant pays in accordance with the terms of its respective lease and is recognized on a straight-line basis over the term of the lease and (ii) variable payments of tenant reimbursements, which are recoveries of all or a portion of the common area maintenance and operating expenses of the property and are recognized in the same period as the expenses are incurred.

     

    The Company evaluates the collectability of tenant receivables for payments required under the lease agreements. If the Company determines that collectability is not probable, the Company recognizes any difference between revenue amounts recognized to date under ASC 842 and payments that have been collected from the lessee, including any additional rent or lease termination fees, as a current period adjustment to rental revenue.

     

    Recent Accounting Pronouncements

     

    See Note 2 — Basis of Presentation and Significant Accounting Policies in the Notes to Consolidated Financial Statements for a full description of recent accounting pronouncements including the expected dates of adoption and effects on results of operations and financial condition.

     

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    Results of Operations

     

     

    Three Months Ended March 31, 2025 Compared to the Three Months Ended March 31, 2024

     

    The following table sets forth a summary of our consolidated results of operations for the periods indicated below and the changes between the periods (in thousands). 

     

       

    Three months ended

             
       

    March 31, 2025

       

    March 31, 2024

       

    Change

     

    Revenue:

                           

    Rental revenue

      $ 4,461     $ 2,138     $ 2,323  

    Fuel revenue

        1,132       266       866  

    Total revenue

        5,593       2,404       3,189  
                             

    Expenses:

                           

    Campus operating expenses

        1,884       779       1,105  

    Fuel expenses

        734       73       661  

    Ground lease expenses

        2,904       1,231       1,673  

    Depreciation and amortization

        1,099       629       470  

    Pursuit and marketing expenses

        580       354       226  

    Employee compensation and benefits

        4,239       3,592       647  

    General and administrative expenses

        976       970       6  

    Total expenses

        12,416       7,628       4,788  
                             

    Operating loss

        (6,823 )     (5,224 )     (1,599 )
                             

    Other (income) expense:

                           

    Interest expense

        138       194       (56 )

    Unrealized gain on warrants

        2,528       16,188       (13,660 )

    Other income

        (363 )     (407 )     44  

    Total other (income) expense

        2,303       15,975       (13,672 )
                             

    Net loss

      $ (9,126 )   $ (21,199 )   $ 12,073  

     

    Revenues

     

    Rental revenues for the three months ended March 31, 2025 were approximately $4.4 million, compared to approximately $2.1 million for the three months ended March 31, 2024. The $2.3 million, or 109%, increase was primarily the result of operations at CMA, which was acquired during the three months ended December 31, 2024, the commencement of operations at SJC during the three months ended June 30, 2024, and the cumulative impact of increased occupancy at our BNA and OPF hangar campuses.

     

    Fuel revenues for the three months ended March 31, 2025 were approximately $1.1 million, compared to approximately $0.3 million for the three months ended March 31, 2024. The approximately $0.8 million, or 326%, increase was primarily the result of fuel sales at our CMA hangar campus, where our fuel revenues and related expenses are recognized on a gross basis.

     

    Operating Expenses

     

    Campus operating expenses increased approximately $1.1 million, or 142%, from approximately $0.8 million for the three months ended March 31, 2024, to approximately $1.9 million for the three months ended March 31, 2025. Salaries, wages, and benefits associated with our hangar campus personnel increased approximately $0.6 million, primarily driven by headcount increases in anticipation of the commencement of operations at our DVT, APA, and ADS hangar campuses, the acquisition of a hangar campus at CMA during December 2024, and the commencement of operations at our SJC hangar campus in April 2024. Other campus operating expenses increased approximately $0.5 million, primarily driven by increased insurance, property taxes, and utilities associated with operations at CMA and SJC, where our operations commenced in December 2024 and April 2024, respectively.

     

    Fuel expenses for the three months ended March 31, 2025 were approximately $0.7 million, compared to approximately $0.1 million for the three months ended March 31, 2024. The approximately $0.6 million, or 906%, increase was primarily the result of the CMA Transaction during the three months ended December 31, 2024, and the related impact of recognizing certain fuel revenue and expenses on a gross basis. 

     

    Ground lease expenses increased approximately $1.7 million, or 136%, from approximately $1.2 million for the three months ended March 31, 2024, to approximately $2.9 million for the three months ended March 31, 2025. The increase in ground lease expense was driven primarily by expense recognized associated with the ground and hangar lease signed at SJC during the three months ended March 31, 2024. The increase in ground lease expense was also driven by the ground leases signed at ORL during the three months ended March 31, 2024, IAD during the three months ended June 30, 2024, SLC during the three months ended September 30, 2024, and the ground leases assumed as part of the CMA Transaction during the three months ended December 31, 2024.

     

    Depreciation and amortization increased approximately $0.5 million, or 75%, for the three months ended March 31, 2025, as compared to the three months ended March 31, 2024. The increase was primarily driven by our acquisition of a hangar campus at CMA during the three months ended December 31, 2024 .

     

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    Operating Expenses - Continued

     

    Pursuit and marketing expenses for the three months ended March 31, 2025 were approximately $0.6 million, compared to approximately $0.4 million for the three months ended March 31, 2024. The approximately $0.2 million, or 64%, increase was primarily the result of investment in our growth strategy in securing airport site acquisitions and potential tenants throughout the year.

     

    Employee compensation and benefits expenses increased approximately $0.7 million, or 18%, to $4.2 million for the three months ended March 31, 2025, as compared to approximately $3.6 million for the three months ended March 31, 2024. The increase was primarily driven by an increase in corporate headcount and expense recognized associated with our equity compensation programs. Headcount and compensation expenses increased approximately $0.5 million, and non-cash equity compensation expense increased approximately $0.2 million.

     

    For the three months ended March 31, 2025 and 2024, other general and administrative expenses were approximately $1.1 million and approximately $1.0 million, respectively. The approximately $0.1 million increase was primarily driven by slight increases in professional fees and technology costs due to the expansion of the business and headcount, offset by a slight decrease in corporate insurance premiums.

     

    Other (Income) Expense

     

    Other expense decreased from approximately $16.0 million of expense for the three months ended March 31, 2024, to approximately $2.3 million of expense for the three months ended March 31, 2025. This decrease was primarily due to an approximately $13.7 million difference in the mark-to-market adjustment of the outstanding warrants at March 31, 2025 as compared to March 31, 2024. 

     

    Non-GAAP Financial Measures

     

    To supplement our results presented in accordance with GAAP, we utilize Adjusted EBITDA, a non-GAAP financial measure that excludes or adjusts certain items. We define Adjusted EBITDA as net income before (i) depreciation and amortization expense, (ii) interest expense, (iii) other income, predominantly consisting of interest income and realized gains from sales of available-for-sale securities, (iv) non-cash equity-based compensation expense, (v) non-cash gains and losses resulting from the change in fair value of our liability-classified warrants, (vi) non-cash operating lease expense, (vii) non-cash operating lease income, (viii) provision for income taxes, (ix) other non-cash expenses, including, but not limited to, the impairment of long-lived assets, gains or losses arising from the disposition of assets, losses on extinguishment of debt, and other non-cash non-operating expenses.

     

    Management uses Adjusted EBITDA to facilitate operating performance comparisons from period to period. We believe this non-GAAP financial measure provide investors, analysts and other interested parties useful information to evaluate our business performance as the removal of certain non-cash expenses and income, they facilitate company-to-company operating performance comparisons. While we believe this non-GAAP financial measure is useful in evaluating our business, it should be considered as supplemental in nature and is not meant to be considered in isolation or as a substitute for the related financial information prepared in accordance with GAAP. In addition, this non-GAAP financial measures may not be the same as a similarly entitled measure reported by other companies, limiting their usefulness as comparative measures. See below for a reconciliation of net income (loss) to Adjusted EBITDA, as well as “Key Business Metrics” for further discussion of Adjusted EBITDA.

     

    Adjusted EBITDA

     

    A reconciliation of net income (loss) to Adjusted EBITDA is presented below:

     

       

    Three months ended

     
       

    March 31, 2025

       

    March 31, 2024

     

    Net loss

      $ (9,126 )   $ (21,199 )

    Add (subtract):

                   

    Depreciation and amortization

        1,099       629  

    Interest expense

        138       194  
    Other income     (363 )     (407 )

    Changes in fair value of warrant liabilities

        2,528       16,188  

    Equity-based compensation

        1,238       1,032  

    Non-cash operating lease expense

        1,481       799  

    Non-cash operating lease income

        (308 )     (19 )

    Adjusted EBITDA

      $ (3,313 )   $ (2,783 )

     

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    Liquidity and Capital Resources

     

    Overview

     

    Liquidity is a measure of our ability to meet potential cash requirements, including ongoing commitments to repay borrowings, fund the construction of new assets, fund working capital and other general business needs. Our primary sources of cash include the potential issuance of equity and debt securities and rental payments from tenants. Our long-term liquidity requirements include lease payments under our ground leases with airport authorities, repaying principal and interest on outstanding borrowings, funding the construction costs of our hangar campus development projects (see “— Construction Material Costs and Labor”), funding for operations, and paying accrued expenses. 

     

    We believe that we have access to multiple sources of capital to fund our long-term liquidity requirements, including the incurrence of additional private activity bonds and other debt and the issuance of additional equity securities. We also have the ability to utilize our ATM Facility or otherwise utilize our shelf registration statement on Form S-3 to access the capital markets. However, as we have recently become a publicly-traded company, we cannot assure you that we will have access to these sources of capital or that, even if such sources of capital are available, that these sources of capital will be available on favorable terms. Our ability to incur additional debt will depend on multiple factors, including our degree of leverage, the value of our unencumbered assets and borrowing restrictions that are or may be imposed by future lenders. Our ability to access the equity and debt capital markets will depend on multiple factors as well, including general market conditions for real estate companies, our degree of leverage, the trading price of our common stock and debt and market perceptions about our Company.

     

    Our cash deposits may exceed the amount of insurance provided on such deposits. Generally, these deposits may be redeemed upon demand and the majority are maintained with a major financial institution with reputable credit. Our restricted cash is held in trust at a major financial institution pursuant to the Series 2021 Bonds indenture. We monitor the relative credit standing of financial institutions with whom we transact and limit the amount of credit exposure with any one entity. Our portfolio of investments and restricted investments is composed entirely of U.S. Treasury securities as of March 31, 2025.

     

    The following table summarizes our cash and cash equivalents, restricted cash, investments, and restricted investments as of March 31, 2025 and December 31, 2024 (in thousands):

     

        March 31, 2025    

    December 31, 2024

     

    Cash and cash equivalents

      $ 51,134     $ 42,442  

    Restricted cash

        32,516       51,917  

    Investments

        -       18,987  
    Restricted investments     13,814       13,816  
    Total cash, restricted cash, investments, and restricted investments   $ 97,464     $ 127,162

     

    2024 Private Placement and Securities Purchase Agreement

     

    On September 16, 2024, we entered into a Securities Purchase Agreement (the “2024 Purchase Agreement”) with certain investors (collectively, the “Initial 2024 Investors”) relating to, among other things, the issuance and sale to the Initial 2024 Investors at an initial closing an aggregate of 3,352,106 shares (the “Initial 2024 PIPE Shares”) of our Class A Common Stock for an aggregate purchase price of $31.8 million (the “Initial 2024 Closing” . On October 25, 2024, additional investors (the “Additional 2024 Investors”) each executed a joinder to the 2024 Purchase Agreement, pursuant to which the Additional 2024 Investors agreed to purchase, and we agreed to sell, an aggregate of 603,684 shares (the “Additional 2024 PIPE Shares”, and together with the Initial 2024 PIPE Shares, the “First Closing 2024 PIPE Shares”) for an aggregate purchase price of $5.7 million. The Initial 2024 Closing under the 2024 Purchase Agreement occurred on October 25, 2024, and 3,955,790 First Closing 2024 PIPE Shares were issued to the Investors for an aggregate purchase price of $37.6 million. In December 2024, we sold and issued to the 2024 Investors an aggregate of 3,955,790 shares (the “Second Closing 2024 PIPE Shares”) for an aggregate purchase price of approximately $37.6 million (the “Second 2024 Closing”). Inclusive of the Initial 2024 Closing, we issued and sold an aggregate of 7,911,580 shares of Class A Common Stock for an aggregate purchase price of approximately $75.2 million.

     

    2023 Private Placement and Securities Purchase Agreement

     

    On November 1, 2023, we entered into a Securities Purchase Agreement (the “2023 Purchase Agreement”) with certain investors (collectively, the “2023 Investors”), pursuant to which we sold and issued to the 2023 Investors at an initial closing an aggregate of 6,586,154 shares of our Class A Common Stock (the “Initial 2023 PIPE Shares”) and accompanying warrants to purchase up to 1,141,600 shares of Class A Common Stock (the “Initial PIPE Warrants”), for an aggregate purchase price of $42.8 million (the "Initial 2023 Financing"). On November 29, 2023, pursuant to the terms of the 2023 Purchase Agreement, we sold and issued to the 2023 Investors an aggregate of 2,307,692 shares of our Class A Common Stock (the “2023 Additional PIPE Shares” and, together with the 2023 Initial PIPE Shares, the “2023 PIPE Shares”) and accompanying warrants to purchase an aggregate of 400,000 shares of Class A Common Stock (the “Additional PIPE Warrants” and, together with the Initial PIPE Warrants, the “PIPE Warrants”) for an aggregate purchase price of $15.0 million. The aggregate PIPE financing through the 2023 Purchase Agreement totaled approximately $57.8 million.

     

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    At-the-Market Facility

     

    On March 27, 2024, we entered into an At Market Issuance Sales Agreement (the “ATM Agreement”) with B. Riley Securities, Inc. (“B. Riley”) with respect to an “at the market” offering program (the “ATM Facility”), under which we may, from time to time, at our sole discretion, issue and sell through B. Riley, acting as sales agent, up to $100 million of shares of Class A Common Stock. Pursuant to the ATM Agreement, we may sell the shares through B. Riley by any method permitted that is deemed an “at the market” offering as defined in Rule 415 under the Securities Act. B. Riley will use commercially reasonable efforts consistent with its normal trading and sales practices to sell the shares from time to time, based upon instructions from us, including any price or size limits or other customary parameters or conditions we may impose. We will pay B. Riley a commission of 3.0% of the gross sales price per share sold under the ATM Agreement, subject to certain reductions. During the three months ended March 31, 2025, we sold no shares of Class A Common Stock under the ATM Facility. During the twelve months ended December 31, 2024, we sold 79,676 shares of Class A Common Stock under the ATM Facility at a weighted-average sales price of $13.75. As a result, we have approximately $98.9 million in remaining capacity under our ATM Facility.

     

    We are not obligated to sell any shares under the ATM Agreement. The offering of shares pursuant to the ATM Agreement will terminate upon the earlier to occur of (i) the issuance and sale, through B. Riley, of all of the shares subject to the ATM Agreement and (ii) termination of the ATM Agreement in accordance with its terms. We have made limited sales under the ATM Facility to date and will only do so when our stock price is at prices our board of directors deems appropriate.

     

    Private Activity Bonds

     

    On September 14, 2021, SHC completed an issuance through the Public Finance Authority (Wisconsin) of $166.3 million of Senior Special Facility Revenue Bonds (Aviation Facilities Project), Series 2021 (the “PABs”). The PABs are comprised of three maturities: $21.1 million bearing interest at 4.00%, due July 1, 2036; $30.4 million bearing interest at 4.00%, due July 1, 2041; and $114.8 million bearing interest at 4.25%, due July 1, 2054. The Series 2021 Bond that has a maturity date of July 1, 2036 was issued at a premium, and Sky received bond proceeds that were $0.2 million above its face value. The net proceeds from the issuance of the PABs proceeds are being used to (a) finance or refinance the construction of various aviation facilities consisting of general aviation aircraft hangars and storage facilities located and to be located on the SGR site, the OPF site, the BNA site, the APA site, and the DVT site; (b) fund debt service and other operating expenses such as ground lease expense during the initial construction period; (c) fund deposits to the Debt Service Reserve Fund; and (d) pay certain costs of issuance related to the PABs.

     

    Debt Covenants

     

    The PABs contain financial and non-financial covenants, including a debt service coverage ratio, a restricted payments test and limitations on the sale, lease, or distribution of assets. To the extent that SHC does not comply with these covenants, an event of default or cross-default may occur under one or more agreements, and we or our subsidiaries may be restricted in our ability to pay dividends, issue new debt or access our leased facilities. The PABs are collateralized on a joint and several basis with the property and revenues of all SHC subsidiaries and their assets financed or to be financed from the proceeds of the PABs.

     

    Covenants in the PABs require SHC to maintain a debt service coverage ratio (as defined in the relevant documents) of at least 1.25 for each applicable test period, commencing with the quarter ending December 31, 2024. The PABs are subject to a Continuing Disclosure Agreement whereby SHC is obligated to provide electronic copies of (i) monthly construction reports, (ii) quarterly reports containing quarterly financial information of SHC and (iii) annual reports containing audited consolidated financial statements of SHC to the Municipal Securities Rulemaking Board. As of March 31, 2025, we were in compliance with all debt covenants.

     

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    Lease Commitments

     

    The Company’s future minimum lease payments required under leases as of March 31, 2025 were as follows: 

     

    Year Ending December 31,  

    Operating Leases

        Finance Leases  

    2025 (remainder of year)

      $ 4,928     $ 18  
    2026     7,602       17  
    2027     8,448       2  
    2028     8,822       -  
    2029     9,197        -  
    Thereafter     490,013       -  
    Total lease payments     529,010       37  

    Less imputed interest

        (373,319 )      (1 )

    Total

      $ 155,691     $ 36  

     

    Off-Balance Sheet Arrangements

     

    We do not maintain any off-balance sheet arrangements.

     

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    Cash Flows

     

    The following table summarizes our sources and uses of cash for the three months ended March 31, 2025 and 2024 (in thousands):

     

       

    Three months ended

     
       

    March 31, 2025

       

    March 31, 2024

     

    Cash and restricted cash at beginning of period

      $ 94,359     $ 72,266  

    Net cash used in operating activities

        (5,050 )     (4,430 )

    Net cash (used in) provided by investing activities

        (4,497 )     33,874  

    Net cash (used in) provided by financing activities

        (1,162 )     299  

    Cash and restricted cash at end of period

      $ 83,650     $ 102,009  

     

    Operating Activities

     

    Cash provided by operating activities is significantly influenced by the amount of cash we invest in personnel and infrastructure to support the anticipated growth of our business. Our working capital consists primarily of cash, receivables from tenants, prepaid expenses, accounts payable, accrued compensation, accrued other expenses, and lease liabilities. The timing of collection of our tenant receivables, and the timing of spending commitments and payments of our accounts payable, accrued expenses, accrued payroll and related benefits, all affect these account balances.

     

     Net cash used in operating activities was approximately $5.0 million for the three months ended March 31, 2025, as compared to cash used in operating activities of approximately $4.4 million for the same period in 2024. The $0.6 million increase in cash used in operating activities was primarily attributable to an approximately $0.5 million increase in net loss, net of non-cash adjustments and an approximately $0.1 million unfavorable change in working capital. The increase in net loss, net of non-cash adjustments was primarily driven by the impact of increases in headcount at both the corporate and hangar campus level, including start-up expenses incurred in anticipation of commencing operations at DVT, APA, and ADS. The unfavorable change in working capital was primarily driven by the timing of spending commitments and payments of our accounts payable and other accrued expenses.

     

    Investing Activities

     

    Our primary investing activities have consisted of payments related to the cost of construction at our various hangar campus development projects and investment in U.S. Treasury Securities. As our business expands, we expect to continue to invest in our current and anticipated future portfolio of hangar campus development projects.

     

     Net cash used in investing activities was approximately $4.5 million for the three months ended March 31, 2025, as compared to cash provided by investing activities of approximately $33.9 million for the same period in 2024. The decrease of approximately $38.4 million of cash provided by investing activities was driven primarily by a decrease in proceeds received from held-to-maturity investments of approximately $68.0 million and an increase of capital expenditures of approximately $14.3 million for the three months ended March 31, 2025 as compared to the three months ended March 31, 2024. These impacts were offset by an approximately $44.8 million decrease in purchases of available for sale investments.

     

    Financing Activities

     

    Our primary financing activities have consisted of capital raised to fund the growth of our business and proceeds from debt obligations incurred to finance our hangar campus development projects. We expect to raise additional equity capital and issue additional indebtedness as our business grows.

     

    Net cash used in financing activities was approximately $1.2 million for the three months ended March 31, 2025, as compared to net cash provided by financing activities of approximately $0.3 million for the same period in 2024. The approximately $1.5 million increase in net cash used in financing activities was primarily driven by a decrease of $1.5 million in proceeds received from the exercise of Warrants during the three months ended March 31, 2024.

     

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    ITEM 3.

    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

     

    The Company is a smaller reporting company as defined by Rule 12b-2 of the Exchange Act and is not required to provide the information under this item.

     

    ITEM 4.

    CONTROLS AND PROCEDURES

     

    Evaluation of Disclosure Controls and Procedures

     

    Disclosure controls and procedures are controls and other procedures that are designed to ensure that information required to be disclosed in our reports filed or submitted 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 in company reports filed or submitted under the Exchange Act is accumulated and communicated to management, including our Chief Executive Officer and Chief Financial Officer, to allow timely decisions regarding required disclosure.

     

    In connection with the preparation of this Form 10-Q, as required by Rules 13a-15 and 15d-15 under the Exchange Act, our Chief Executive Officer and Chief Financial Officer carried out an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures as of March 31, 2025. Based on that evaluation, our CEO and CFO concluded that our disclosure controls and procedures are effective to ensure that information required to be disclosed by us in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC's rules and forms, and is accumulated and communicated to our management, including our CEO and CFO, to allow timely decisions regarding required disclosure.

     

    Changes in Internal Control over Financial Reporting

     

    There have been no changes in our internal control over financial reporting during the three months ended March 31, 2025 that have materially affected, or are reasonably likely to materially affect, our internal controls over financial reporting.

     

    35

    Table of Contents

     

    PART II – OTHER INFORMATION

     

    ITEM 1.

    LEGAL PROCEEDINGS

     

    The Company is not currently a party to any material legal proceedings.

     

    ITEM 1A.

    RISK FACTORS

     

    There have been no material changes in our risk factors from those disclosed in our Annual Report on Form 10-K for the fiscal year ended December 31, 2024.

     

    ITEM 2.

    UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

     

    During the three months ended March 31, 2025, there were no unregistered sales of the Company's securities that were not reported in a Current Report on Form 8-K.

     

    ITEM 3.

    DEFAULTS UPON SENIOR SECURITIES

     

    Not applicable.

     

    ITEM 4.

    MINE SAFETY DISCLOSURES

     

    Not applicable.

     

     

    ITEM 5.

    OTHER INFORMATION

     

    During the three months ended March 31, 2025, no director or officer of the Company adopted or terminated a “Rule 10b5-1 trading arrangement” or a “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(a) of Regulation S-K

     

    36

    Table of Contents

     

     

    ITEM 6.

    EXHIBITS

     

     

    (a)

    See accompanying Exhibit Index included before the signature page of this report for a list of exhibits filed or furnished with this report.

     

            Incorporated by Reference

    Exhibit
    Number

     

    Description

     

    Schedule/
    Form

     

    File No.

     

    Exhibit

     

    Filing Date

                         

    3.1

     

    Second Amended and Restated Certificate of Incorporation of Yellowstone Acquisition Company.

     

    8-K

     

    001-39648

     

    3.1

     

    January 31, 2022

                         

    3.2

     

    Bylaws of Sky Harbour Group Corporation.

     

    8-K

     

    001-39648

     

    3.2

     

    January 31, 2022

                         

    31.1 (#)

     

    Certification of the Chief Executive Officer required by Rule 13a-14(a) or Rule 15d-14(a).

                   
                         

    31.2 (#)

     

    Certification of the Chief Financial Officer required by Rule 13a-14(a) or Rule 15d-14(a).

                   
                         

    32.1 (##)

     

    Certification of the Chief Executive Officer required by Rule 13a-14(b) or Rule 15d-14(b) and 18 U.S.C. 1350.

     
           

    32.2 (##)

     

    Certification of the Chief Financial Officer required by Rule 13a-14(b) or Rule 15d-14(b) and 18 U.S.C. 1350.

     
           

    101.INS (#)

     

    Inline XBRL Instance Document.

         

    101.SCH (#)

     

    Inline XBRL Taxonomy Extension Schema Document.

         

    101.CAL (#)

     

    Inline XBRL Taxonomy Extension Calculation Linkbase Document.

         

    101.DEF (#)

     

    Inline XBRL Taxonomy Extension Definition.

         

    101.LAB (#)

     

    Inline XBRL Taxonomy Extension Label Linkbase Document.

         

    101.PRE (#)

     

    Inline XBRL Taxonomy Presentation Linkbase Document.

         

    104 (#)

     

    Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

     

    (#)

     

    Filed herewith.

     (##)

     

    The certifications attached as Exhibits 32.1 and 32.2 that accompany this Report, are not deemed filed with the SEC and are not to be incorporated by reference into any filing of Sky Harbour Group Corporation under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date of this Report irrespective of any general incorporation language contained in such filing.

    (+)   Certain schedules and exhibits to this Exhibit have been omitted pursuant to Item 601(a)(5) or Item 601(b)(10)(iv), as applicable, of Regulation S-K. The Registrant agrees to furnish supplemental copies of all omitted exhibits and schedules to the Securities and Exchange Commission upon its request.

     

    37

    Table of Contents

     

    SIGNATURES

     

     

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

     

     

    SKY HARBOUR GROUP CORPORATION

    (Registrant)

     
         
         
     

    By:

    /s/ Tal Keinan

     
     

    Tal Keinan

    Chief Executive Officer (Principal Executive Officer)

     
         
      May 13, 2025  
         
         
     

    By: 

    /s/ Francisco Gonzalez 

     
     

    Francisco Gonzalez

    Chief Financial Officer (Principal Financial Officer)

     
         
      May 13, 2025  
         
         
     

    By:

    /s/ Michael W. Schmitt 

     
     

    Michael W. Schmitt

    Chief Accounting Officer (Principal Accounting Officer)

     
         
      May 13, 2025  

     

     

    38
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