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Sky Harbour Group Corp

For the period ended Sep 30, 2026. Filed Nov 10, 2026.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2026 · Filed Nov 10, 2026

SKYH$10.59-2.8%Stored close · as of Nov 10, 2026

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Item 1. Financial Statements

CONSOLIDATED BALANCE SHEETS

September 30, 2026December 31, 2025
(unaudited)(audited)
Assets​​
Cash$43,858$20,718
Restricted cash112,63416,306
Restricted investments42,89811,453
Accounts receivable, prepaid expenses, and other assets18,68714,154
Cost of construction131,36260,837
Constructed assets, net308,378267,687
Right-of-use assets190,197177,955
Long-lived assets, net22,88021,356
Lease intangible assets, net2,4892,710
Total assets$873,383$593,176
​​
Liabilities and equity​​
Accounts payable, accrued expenses and other liabilities$44,150$37,360
Operating lease liabilities209,354190,222
Loans payable and finance lease liabilities95,28520,544
Bonds payable, net of debt issuance costs and premiums310,009162,815
Warrants liability2,68610,269
Total liabilities661,484421,210
​​
Commitments and contingencies (Note 18)​​
​​
Stockholders’ equity​​
Preferred stock; $0.0001 par value; 10,000,000 shares authorized as of September 30, 2026; none issued and outstanding--
Class A common stock, $0.0001 par value; 200,000,000 shares authorized; 39,622,045 and 33,989,673 shares issued and outstanding as of September 30, 2026 and December 31, 2025, respectively43
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 September 30, 2026 and December 31, 2025, respectively44
Additional paid-in capital229,605173,514
Accumulated deficit(52,661)(45,774)
Accumulated other comprehensive income--
Total Sky Harbour Group Corporation stockholders’ equity176,952127,747
​​
Non-controlling interests34,94744,219
Total equity211,899171,966
​​
Total liabilities and equity$873,383$593,176

CONSOLIDATED STATEMENTS OF OPERATIONS

(in thousands, except per share data)

Three months endedNine months ended
September 30, 2026September 30, 2025September 30, 2026September 30, 2025
Revenue:​​​​
Rental revenue$7,640$5,709$21,163$15,395
Fuel revenue2,9361,5937,9934,088
Total revenue10,5767,30229,15619,483
​​​​
Expenses:​​​​
Campus operating expenses2,8012,1027,7546,212
Fuel expenses1,7776894,7992,346
Ground lease expenses3,8793,52211,6899,994
Depreciation and amortization2,2081,7746,2954,352
Pursuit and marketing expenses5865641,8721,729
Employee compensation and benefits4,6554,96113,61213,494
General and administrative expenses9401,3693,1453,386
Total expenses16,84614,98149,16641,513
​​​​
Operating loss(6,270)(7,679)(20,010)(22,030)
​​​​
Other (income) expense:​​​​
Interest expense1,1762803,809551
Unrealized gain on warrants(4,581)(3,002)(7,583)(22,275)
Other (income) expense(46)(304)(76)(883)
Total other income(3,451)(3,026)(3,850)(22,607)
​​​​
Net (loss) income(2,819)(4,653)(16,160)577
​​​​
Net loss attributable to non-controlling interests(2,747)(2,775)(9,272)(8,622)
Net income (loss) attributable to Sky Harbour Group Corporation shareholders$(72)$(1,878)$(6,888)$9,199
​​​​
Loss per share​​​​
Basic$(0.00)$(0.06)$(0.20)$0.27
Diluted$(0.00)$(0.06)$(0.20)$0.01
Weighted average shares​​​​
Basic37,14333,88135,23533,792
Diluted37,14333,88135,23577,763

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(in thousands)

​ · ​ · Three Months Ended · ​ · ​ · Nine Months Ended · ​
​ · ​ · September 30, 2026 · ​ · ​ · September 30, 2025 · ​ · ​ · September 30, 2026 · ​ · ​ · September 30, 2025 · ​
Net (loss) income​$(2,819)​$(4,653)​​$(16,160)​$577​
Unrealized gains on available-for-sale securities​​-​​​-​​​244​​​70​
Realized gains on available-for-sale securities reclassified to the consolidated statements of operations​​-​​(70)​​​(244)​​(123)
Total comprehensive (loss) income​$(2,819)​$(4,723)​​$(16,160)​$524​

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’** EQUITY**

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, 202533,989,673$342,046,356$4$173,514$(45,774)$-127,747$44,219$171,966
Share-based compensation----1,602--1,602-1,602
Vesting of restricted stock units261,825---------
Shares withheld for payment of employee taxes(81,014)---(654)--(654)-(654)
Issuance of stock through ATM Facility, net of equity issuance costs47,371---465--465-465
Shares issued as debt issuance costs40,000---362--362-362
Other comprehensive income------244244-244
Net loss-----(5,578)-(5,578)(3,394)(8,972)
Balance at March 31, 202634,257,855$342,046,356$4$175,289$(51,352)$244$124,188$40,825$165,013
Share-based compensation----1,816--1,816-1,816
Vesting of restricted stock units79,878---------
Shares withheld for payment of employee taxes(22,521)---(226)--(226)-(226)
Issuance of stock through ATM Facility, net of equity issuance costs195,112---2,019--2,019-2,019
Payment of equity issuance costs----(20)--(20)-(20)
Other comprehensive loss------(244)(244)-(244)
Net loss-----(1,237)-(1,237)(3,131)(4,368)
Balance at June 30, 202634,510,324$342,046,356$4$178,878$(52,589)$-$126,296$37,694$163,990
Share-based compensation----1,656--1,656-1,656
Vesting of restricted stock units127,292---------
Shares withheld for payment of employee taxes(15,571)---(369)--(369)-(369)
Issuance of stock through registered direct offerings, net of equity issuance costs5,000,0001--49,440--49,441-49,441
Net income (loss)-----(72)-(72)(2,747)(2,819)
Balance at September 30, 202639,622,045$442,046,356$4$229,605$(52,661)$-$176,952$34,947$211,899
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, 202433,456,227$342,046,356$4$168,634$(64,592)$53104,102$55,716$159,818
Share-based compensation----1,193--1,193451,238
Vesting of restricted stock units201,207---------
Shares withheld for payment of employee taxes(59,548)---(661)--(661)-(661)
Payment of equity issuance costs----(65)--(65)-(65)
Exchange of Sky Incentive Units196,000---75--75(75)-
Other comprehensive loss------(53)(53)-(53)
Net loss-----(6,376)-(6,376)(2,750)(9,126)
Balance at March 31, 202533,793,886$342,046,356$4$169,176$(70,968)$-$98,215$52,936$151,151
Share-based compensation----1,293--1,293301,323
Vesting of restricted stock units31,190---------
Shares withheld for payment of employee taxes(10,175)---(116)-​(116)-(116)
Issuance of stock through ATM Facility, net of equity issuance costs20,472---281-​281​281
Payment of equity issuance costs----(20)-​(20)-(20)
Other comprehensive loss------7070-70
Net income (loss)-----17,453-17,453(3,097)14,356
Balance at June 30, 202533,835,373$342,046,356$4$170,614$(53,515)$70$117,176$49,869$167,045
Share-based compensation----1,990--1,990-1,990
Vesting of restricted stock units94,501---------
Shares withheld for payment of employee taxes(32,600)---(456)--(456)-(456)
Other comprehensive income------(70)(70)-(70)
Net loss-----(1,878)-(1,878)(2,775)(4,653)
Balance at September 30, 202533,897,274$342,046,356$4$172,148$(55,393)$-$116,762$47,094$163,856

CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

Nine months ended
September 30, 2026September 30, 2025
Cash flows from operating activities:​​
Net (loss) income$(16,160)$577
Adjustments to reconcile net income (loss) to net cash used in operating activities:​​
Depreciation and amortization6,3724,411
Amortization of debt issuance costs1,47073
Straight-line rent adjustments, net(1,223)(767)
Equity-based compensation5,0754,551
Non-cash operating lease expense6,8905,287
Realized gain on available for sale investments(64)(95)
Paid-in-kind interest expense764-
Loss on disposition of assets14669
Unrealized gain on warrants(7,583)(22,275)
Changes in operating assets and liabilities:​​
Accounts receivable, prepaid expenses, and other assets(921)1,092
Accounts payable, accrued expenses, and other liabilities1,132177
Net cash used in operating activities(4,102)(6,900)
​​
Cash flows from investing activities:​​
Purchases of long-lived assets(3,340)(7,693)
Payments for cost of construction(110,605)(58,489)
Proceeds from disposition of long-lived assets30553
Investment in notes receivable, net-(121)
Purchases of available for sale investments(117,531)(188,394)
Purchases of held-to-maturity investments(31,359)-
Proceeds from available for sale investments117,595207,493
Proceeds from held-to-maturity investments-2,356
Net cash used in investing activities(145,210)(44,295)
​​
Cash flows from financing activities:​​
Proceeds from registered direct offerings50,000-
Proceeds from ATM Facility2,545281
Proceeds from issuance of bonds payable150,000-
Proceeds from issuance of loans payable78,810-
Principal payments for loans payable and finance leases(6,395)(1,283)
Payments for debt issuance costs(4,351)(4,366)
Payments for equity issuance costs(579)(90)
Payments of employee taxes related to vested equity awards(1,250)(1,233)
Net cash provided by (used in) financing activities268,780(6,691)
​​
Net increase (decrease) in cash and restricted cash119,468(57,886)
​​
Cash and restricted cash, beginning of period37,02494,359
​​
Cash and restricted cash, end of period$156,492$36,473

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

September 30, 2026

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, constructs, leases, and manages general aviation hangars for business aircraft across the United States. SHG 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* September 30, 2026*, SHG owned approximately 48.5% of the Sky Common Units and the prior holders of Sky Common Units (the “LLC Interests”) owned approximately 51.5% 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 Form10-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 Form10-K for the year ended* December 31, 2025,*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.

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, and estimates and assumptions related to right-of-use assets and operating lease liabilities. Actual results could differ materially from those estimates.

Risks and Uncertainties

The Company is subject to risks and uncertainties common to early-stage companies. 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 are 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, committed bank drawdown facility, and has the ability to utilize its at-the-market offering program to fund its construction, lease, and operational commitments, and believes its liquidity is sufficient to allow continued operations for more thanone year after the date these financial statements are issued.

7

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 Skynot owned by SHG 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 projects are 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 estimated useful 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”) Topic842, Leases. The Company determines whether a contract contains a lease at the inception of the contract. ASC Topic842 requires lessees to recognize lease liabilities and right-of-use (“ROU”) assets for all operating leases with terms of more than12 months on the consolidated balance sheets. The Company has made an accounting policy election tonot recognize leases with an initial term of12 months or less on the Company’s consolidated balance sheets and will recognize 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 tonot separate lease and non-lease components for all underlying asset classes. The Company hasnot 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.

All of the Company’s ground leases at airports are classified as operating leases under ASC Topic842. 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 donot 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.

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 arenot fixed or in-substance fixed payments. These variable payments werenot material in amount for thethree andnine months ended* September 30, 2026and2025*. 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. Forone of the leases, the shortfall (if any) must be paid to the lessor. See Note18 —Commitments and Contingencies.

Warrants liability

The Company accounts for its Warrants (as defined in Note11 —Warrants) in accordance with the guidance contained in ASC Topic815, “Derivatives and Hedging” (“ASC815”), under which warrants that donot 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.

8

Revenue recognition

The Company leases the hangar facilities that it constructs tothird party customers. 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* mayhave 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 areno* options given to the lessee to purchase the underlying assets.

Rental revenue is recognized in accordance with ASC842 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, if any, 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 isnot probable, the Company recognizes any difference between revenue amounts recognized to date under ASC842 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.

At certain of the Company’s hangar campuses, the Company recognizes revenue from ground-based services, such as the fueling and towing of aircraft under ASC Topic606, Revenue from Contracts with Customers. 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 thethree andnine months ended* September 30, 2026* and2025, the Company didnot derive10% of its revenue from any single tenant.

Income Taxes

SHG is classified as a corporation for U.S. 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 arenot 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 transactions contemplated by that certain Equity Purchase Agreement, dated as of* August 1, 2021,by and among Yellowstone Acquisition Company (“YAC”) and Sky, which we refer to as the Yellowstone Transaction, Sky wasnot* 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 thannot that a tax benefit willnot 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 thethree andnine months ended* September 30, 2026* and2025. The effective income tax rate for thethree andnine months ended* September 30, 2026* and2025 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 thannot that the deferred tax assets willnot be realized due to the cumulative losses sustained by the Company to date.

Recently Issued Accounting Pronouncements

In* November 2024,the FASB issued ASUNo.* 2024-03*,* Income Statement —* Reporting Comprehensive Income: Expense Disaggregation Disclosures (Subtopic* 220-40): Disaggregation of Income Statement Expenses. This ASU requires public business entities to disclose in the notes to financial statements specific categories within relevant expense captions presented on the face of the income statement. The ASU is effective for annual reporting periods beginning after* December 15, 2026,and interim reporting periods beginning after December 15, 2027.*Early adoption is permitted. The amendments should be applied on a prospective basis with retrospective application permitted. We are currently evaluating the impact of adopting this ASU on our consolidated financial statements and disclosures.

9

3.Investments and Restricted Investments

Investments of the Company’s cash in various U.S. Treasury securities that have been classified as available-for-sale and are carried at estimated fair value utilizing Level1 inputs as determined based upon quoted market prices. Investments of the funds held in the restricted trust bank accounts associated with the Series2021 Bonds and the Series2026 Bonds, as defined in Note10 —Bonds payable, loans payable, and interest, are reported as “Restricted investments” in the accompanying consolidated balance sheets. Such investments are classified as available-for-sale or held-to-maturity at the time of investment.

Unrealized losses on certain of the Company’s investments and restricted investments are primarily attributable to changes in interest rates. The Company doesnot believe the unrealized losses represent impairments because the unrealized losses are due to general market factors. The Company hasnot recognized an allowance for expected credit losses related to its investments or restricted investments as the Company hasnot identified any unrealized losses attributable to credit factors during thethree andnine months ended* September 30, 2026*. The held-to-maturity restricted investments are carried on the consolidated balance sheet at amortized cost. As of* September 30, 2026*, the Company has the ability and intent to hold these restricted investments until maturity, and as a result, the Company wouldnot 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 Level1 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* September 30, 2026* and* December 31, 2025*:

Amortized CostGross Unrealized GainsGross Unrealized LossesEstimated Fair Value
Securities available-for-sale:
Restricted investments - U.S. Treasuries · $ · - · $ · - · $ · - · $ · -
Total securities available-for-sale · $ · - · $ · - · $ · - · $ · -
Securities held-to-maturity:
Restricted investments - U.S. Treasuries42,898287(777)42,408
Total securities held-to-maturity$42,898$287$(777)$42,408
Amortized Cost · Gross Unrealized Gains · Gross Unrealized Losses · Estimated Fair Value
Securities available-for-sale:
Restricted investments - U.S. Treasuries · $ · - · $ · - · $ · - · $ · -
Total securities available-for-sale · $ · - · $ · - · $ · - · $ · -
Securities held-to-maturity:
Restricted investments - U.S. Treasuries11,45355-11,508
Total securities held-to-maturity$11,453$55$-$11,508

The following table sets forth the maturity profile of the Company’s investments and restricted investments as of* September 30, 2026*:

Securities Available-for-Sale · Securities Held-to-Maturity
Due within one year$-$20,453
Due one year through five years-22,445
Total$-$42,898

10

4.Cost of Construction and Constructed Assets

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

September 30, 2026December 31, 2025
Constructed assets, net of accumulated depreciation:
Buildings: ADS Phase I, APA Phase I, BNA, CMA, DVT Phase I, OPF, SGR, and SJC Renovation$323,180$277,473
Accumulated depreciation(14,802)(9,786)
$308,378$267,687
Cost of construction:
ADS Phase II, BDL Phase I, HIO Phase I, IAD Phase I, ORL Phase I, POU Phase I, PWK Phase I, SLC Phase I, and TTN Phase I$131,362$60,837

Depreciation expense for thethree andnine months ended* September 30, 2026* totaled approximately $1.8 million and $5.0 million, respectively. Depreciation expense for thethree andnine months ended* September 30, 2025*totaled approximately $1.4 million and $3.4 million, respectively.

5.Long-lived Assets

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

September 30, 2026December 31, 2025
Ground support equipment$3,001$2,882
Machinery and equipment8,0967,719
Buildings11,0557,993
Land1,6201,620
Other equipment and fixtures2,4101,899
Purchase deposits and construction in progress1,4382,658
27,62024,771
Accumulated depreciation(4,740)(3,415)
$22,880$21,356

Depreciation expense for thethree andnine months ended* September 30, 2026* totaled approximately $0.4 million and $1.1 million, respectively. Depreciation expense for thethree andnine months ended* September 30, 2025totaled approximately $0.3 million and $0.8 million, respectively. Capitalized depreciation of long-lived assets included in cost of construction totaled approximately $0.2 million and $0.5 million for thethree* andnine months ended* September 30, 2026*, respectively. Capitalized depreciation of long-lived assets included in cost of construction totaled approximately $0.1 million and $0.6 million for thethree andnine months ended* September 30, 2025,respectively. As of September 30, 2026* and* December 31, 2025,long-lived assets included approximately $1.4 million and $2.7 million, respectively, of purchase deposits towards long-lived assets and construction in progress which arenot* being depreciated as the assets havenot been placed into service.

11

6.Lease Intangible Assets

Lease intangible assets, net, consists of the following:

September 30, 2026December 31, 2025
Acquired in-place lease$1,878$1,878
Above market leases1,1511,151
3,0293,029
Accumulated amortization(540)(319)
Total lease intangible assets$2,489$2,710

Amortization expense for thethree andnine months ended* September 30, 2026* totaled approximately $0.1 million and $0.2 million, respectively. Amortization expense for thethree andnine months ended* September 30, 2025totaled approximately $0.1 million and $0.2 million, respectively. Less than $0.1 million and approximately $0.1 million of amortization expense is included within rental revenue within the consolidated statements of operations for thethree* andnine months ended* September 30, 2026*, respectively.

7.Accounts Payable, Accrued Expenses, and Other Liabilities

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

September 30, 2026December 31, 2025
Costs of construction$22,068$18,442
Employee compensation and benefits2,0542,017
Interest4,6353,889
Professional fees1,553851
Property taxes428444
Deferred rent and tenant rent received in advance6,5656,649
Tenant security deposits2,3211,536
Other4,5263,532
$44,150$37,360

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8.Leases — Lessee

The table below sets forth a summary of operating lease expense for thethree andnine months ended* September 30, 2026and2025* recorded in the captions within our consolidated statement of operations:

Three months endedNine months ended
September 30, 2026September 30, 2025September 30, 2026September 30, 2025
Ground lease expenses$3,879$3,522$11,689$9,994
Fuel expenses153154421491
General and administrative expenses2847118103
Total operating lease expense$4,060$3,723$12,228$10,588

The Company’s long-term ground leases have remaining terms ranging between 18 to 71 years, including options for the Company to extend the terms. These leases expire between2044 and2097, 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. In addition to the Company’s ground leases, the Company has operating leases for ground support vehicles and finance leases for vehicles supporting operations at its pre-engineered metal building subsidiary.

In* January 2026,the Company, through an indirect, wholly-owned subsidiary of the Company, executed a lease amendment with respect to its ground lease at SWF to add an approximately 10 acre parcel of land to the existing lease (the “SWF Lease Amendment”). The land associated with the SWF Lease Amendment became immediately available for possession in January 2026*and is co-terminus with the other parcel covered by the Company's ground lease at SWF.

In* September 2026,the Company, through an indirect, wholly-owned subsidiary of the Company, executed a lease amendment with respect to its ground lease at IAD to modify certain terms of the original lease and add an option exercisable by the Company to add an approximately 15 acre parcel of land to the existing lease (the “IAD Lease Amendment”). The option granted by the IAD Lease Amendment expires the earlier offive years from the certificate of occupancy associated with IAD Phase II or December 31, 2037.*The lease term associated with the option granted by the IAD Lease Amendment is co-terminus with the other parcel covered by the Company's ground lease at IAD.

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

Nine months ended
September 30,September 30,
20262025
Cash paid for amounts included in measurement of lease liabilities:
Operating cash flows from operating leases$4,979$4,846
Operating cash flows from finance leases51
Financing cash flows from finance leases4316

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

Weighted Average Remaining Lease Term (in years)September 30, 2026December 31, 2025
Operating leases
Ground leases - Unimproved at commencement51.652.5
Ground leases - Existing improvements29.030.1
Equipment leases7.47.8
Office leases-0.1
All operating leases44.844.9
Finance leases2.02.5
Weighted Average Discount Rate
Operating leases
Ground leases - Unimproved at commencement5.93%5.79%
Ground leases - Existing improvements5.17%5.18%
Equipment leases5.51%5.51%
Office leases-4.82%
All operating leases5.80%5.68%
Finance leases6.97%6.75%

The Company’s future minimum lease payments required under leases as of* September 30, 2026* were as follows:

Year Ending December 31,Operating LeasesFinance Leases
2026 (remainder of year)$1,816$11
20278,75645
202810,69132
202911,436-
203011,590-
Thereafter719,525-
Total lease payments763,81488
Less imputed interest(554,460)(5)
Total$209,354$83

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9.Leases — Lessor

Tenant leases to which the Company is the lessor require the following non-cancelable future minimum lease payments from tenants as of* September 30, 2026*:

Year Ending December 31,Operating Leases
2026 (remainder of year)$7,443
202723,927
202817,391
202910,016
20307,309
Thereafter17,375
Total$83,461

The amounts presented above exclude tenant variable payments, rental escalations that arenot fixed, or future rental revenue from the renewal or replacement of existing tenant leases.

Variable payments consist of recoveries from tenants 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, short-term rentals, and lease termination fees. Variable 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.

The table below sets forth a summary of variable payments for thethree andnine months ended* September 30, 2026* and2025 recorded in the captions within our consolidated statement of operations:

Three months endedNine months ended
September 30, 2026September 30, 2025September 30, 2026September 30, 2025
Variable payments included in rental revenue$538$332$1,481$1,068
Variable payments included in fuel revenue8548392,5481,984
Total variable payments included in revenue$1,392$1,171$4,029$3,052

As of* September 30, 2026* and* December 31, 2025*, the deferred rent receivable included in accounts receivable, prepaid expenses, and other assets was approximately $2.4 million and $1.5 million, respectively. Deferred rent liabilities and rent received in advance represent tenant payments received prior to the contractual due date, and are included in accounts payable, accrued expenses, and other liabilities. Such liabilities totaled approximately $6.6 million and $6.6 million as of* September 30, 2026* and* December 31, 2025*, respectively.

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10.Bonds payable, Loans payable, and Interest

The following table summarizes the Company’s bonds and loans payable as of* September 30, 2026* and* December 31, 2025*:

September 30, 2026 · December 31, 2025
Maturity Dates · Contractual Interest Rates · Principal Amount · Carrying Value · Principal Amount · Carrying Value
Bonds payable:
Series 2021 BondsJuly 2036 - July 20544.00 - 4.25%$166,340$162,955$166,340$162,815
Series 2026 BondsSubject to Mandatory Tender January 20316.00%150,000147,054--
Total bonds payable316,340310,009166,340162,815
Loans payable and finance leases:
Term Loan FacilitySeptember 203080% of (SOFR + 0.1%) + 2.00%70,81770,817--
Yorkville Promissory Note 1June 20277.75%11,25011,10115,00014,430
Yorkville Promissory Note 2June 20277.75%7,5007,389--
Vista LoanDecember 2035Prime + 0.25%5,9975,8956,0905,980
Equipment LoanAugust 20263.79%--99
Finance LeasesAugust 2026 - July 20276.97%8383125125
Total loans payable and finance leases95,64795,28521,22420,544
Total bonds and loans payable$411,987$405,294$187,564$183,359

The Company’s contractual principal payments required under its bonds payable and loans payable as of* September 30, 2026* were as follows:

Year Ending December 31, · Bonds Payable · Loans Payable
2026 (remainder of year)$-$6,270
2027-12,591
2028-98
2029-105
2030-70,930
Thereafter316,3405,569
Total$316,340$95,563

As of* September 30, 2026* and* December 31, 2025*, the fair value of the Company's Series2021 Bonds was approximately $141.8 million and $140.8 million, respectively. As of* September 30, 2026*, the fair value of the Company's Series2026 Bonds was approximately $155.3 million. The fair value of the Company's bonds is estimated utilizing Level2 inputs including prices for the bonds on inactive markets. The Term Loan Facility and the Vista Loan bear interest at a floating rate based on an index plus a spread, and the Yorkville Promissory Notes carry short-term maturities. As such, the Company believes the carrying value of such debt approximates their respective fair value.

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Interest Expense

The following table sets forth the details of interest expense:

Three months endedNine months ended
September 30, 2026September 30, 2025September 30, 2026September 30, 2025
Interest$5,409$1,859$14,138$5,601
Commitment fees1828367183
Accretion of bond premium and amortization of debt issuance costs7171212,160218
Total interest incurred6,3082,06316,9695,902
Less: capitalized interest(5,132)(1,783)(13,160)(5,351)
Interest expense$1,176$280$3,809$551

The Company uses derivative financial instruments to manage its interest rate risk associated with its variable-rate term loan facility in an aggregate principal amount of up to $200 million (the “Term Loan Facility”) with JPMorgan Chase Bank, N.A. The Company doesnot enter into derivative transactions for speculative or trading purposes. In* October 2025,*the Company entered into an interest rate swap (the “Swap Agreement”) for notional amounts of up to $200 million, based on predetermined notional schedule agreement as defined in the Swap Agreement. The Swap Agreement effectively fixes the SOFR component of any loans at or below the notional schedule made under the Term Loan Facility at approximately 2.65%, or 4.73% inclusive of applicable interest rate spreads, for thefive-year term.

The following table reflects the fair value of the Swap Agreement as of* September 30, 2026* and* December 31, 2025*:

Balance sheet location:September 30, 2026December 31, 2025
Asset derivatives:
Accounts receivable, prepaid expenses, and other assets$5$2

The Swap Agreement isnot designated as a hedging instrument. The Company records cash settlements and changes in fair value associated with the Swap Agreement as a component of interest expense within the consolidated statement of operations.

16

Tax-Exempt Series2026 Bonds Issuance**

On* February 12, 2026,Sky Harbour Capital III LLC (“Sky Capital III”), an indirect, wholly-owned subsidiary of the Company, completed a $150 million financing through the issuance of Revenue Bonds (Sky Harbour Capital III LLC Aviation Facilities Project), Series2026* (the “Series2026 Bonds”). The Series2026 Bonds were issued by the Public Finance Authority of Wisconsin, a multi-jurisdictional conduit issuer (the “Issuer”), pursuant to a Trust Indenture, dated as of* January 1, 2026 (the “Indenture”) and effective as of February 12, 2026,between the Issuer and UMB Bank, N.A., as trustee (the “Series2026* Bond Trustee”). The proceeds of the Bonds were used to make a loan (the “Loan”) to Sky Capital III pursuant to a Loan Agreement, dated as of* February 1, 2026 (the “Loan Agreement”), between the Issuer and Sky Capital III, and assigned to the Series2026* Bond Trustee. The Series2026 Bonds were issued in a limited offering (the “Offering”) pursuant to a Limited Offering Memorandum dated* January 29, 2026 (the “Limited Offering Memorandum”) to persons reasonably believed to be qualified institutional buyers pursuant to Rule144A* under the Securities Act of1933, as amended (the “Securities Act”), or accredited investors within the meaning of Rule501(a) under the Securities Act. The borrowings under the Loan Agreement are guaranteed (the “Guarantee”) by Sky, and Sky Harbour Holdings IV LLC, a wholly owned subsidiary of Sky (the “Pledgor”). Pursuant to the Indenture, all of the Issuer’s right, title, and interest in the Loan Agreement (except for certain unassigned rights) were assigned to the Series2026 Bond Trustee. The Series2026 Bonds are secured by the Loan Agreement and the residual cash flows of certain of the Company’s projects, and payment of the Bonds is structurally subordinate to the Series2021 Bonds and borrowings under the Term Loan Facility.

The Series2026 Bonds and borrowings under the Loan Agreement bear interest at a rate of 6.00% per year, payable semi-annually in arrears on* January 1and July 1of each year, beginning on July 1, 2026.The Series2026* Bonds are subject to mandatory tender for purchase on* January 1, 2031 (the “Mandatory Tender Date”), and will mature on July 1, 2060,unless earlier exchanged, redeemed or repurchased. On the Mandatory Tender Date, holders will be required to tender their Bonds for purchase at a price equal to 100% of the principal amount thereof plus accrued interest. Following such mandatory tender, the Bonds maybe remarketed at a new interest rate or otherwise refinanced. Accordingly, although the Series2026* Bonds have a stated final maturity of* July 1, 2060,Sky Capital III will be required to refinance or remarket the Series2026* Bonds on or prior to* January 1, 2031.*

The principal amount of the Loan is $150 million. The Company intends to use the proceeds from the Loan, together with other available funds, including draws from the Company’s Term Loan Facility, to (i) finance or refinance, directly or indirectly, all or a portion of the construction, equipping and/or improvement of all or a portion of certain aircraft storage facilities (collectively, the*“2026* Projects”); (ii) fund a deposit to the debt service reserve fund for the Series2026 Bonds; (iii) pay capitalized interest on the Loan through* January 1, 2029;and (iv) pay the costs of issuance of the Series2026* Bonds.

The Series2026 Bonds are subject to (a) optional redemption at the discretion of Sky Capital III at any time on or after* January 1, 2030at a redemption price equal to the principal amount plus a1%* premium and accrued and unpaid interest to the redemption date, (b) mandatory redemption upon the occurrence of a determination of taxability of the Series2026 Bonds, and (c) mandatory sinking fund redemption beginning in2056.

Sky Capital III expects to meet its payment obligations under the Loan Agreement from funds to the extent available and permitted to be released under the master trust indenture with respect to the Series2021 Bonds and the Term Loan Facility. Interest is capitalized through* January 1, 2029.*

The Indenture and the Loan Agreement provide for customary events of default, all as described in the Indenture and the Loan Agreement.

Term Loan Facility

First Amendment to Term Loan Facility

On* January 8, 2026,Sky Harbour Capital II LLC (“SH Capital II”), an indirect, wholly-owned subsidiary of the Company, entered into an amendment (the “Amendment”) to the Term Loan Facility. The Amendment amended the Term Loan Facility to provide for, among other things, conditions under which surplus funds, as defined in the Amendment (the “Term Loan Facility Surplus Funds”), may*be released to SH Capital II and its special purpose subsidiaries (the “Term Loan Borrowers”).

In addition, Sky Harbour Holdings III LLC (“SKYH III”) amended its related guaranty (the “Sky III Guaranty”, and such amendment, the “Sky III Guaranty Amendment”) to provide for, among other things, conditions under which surplus funds arising from amounts received by Sky from excess revenues released from the Master Indenture* may*be utilized by Sky, as discussed below.

Provided certain conditions within the Amendment are met, the Amendment permits the Term Loan Borrowers to distribute or otherwise transfer such Term Loan Facility Surplus Funds to (i) Sky (the “Parent Guarantor”) for the payment of general and administrative expenses of the Parent Guarantor, (ii) pay current interest or principal on indebtedness of the Parent Guarantor or indebtedness guaranteed by the Parent Guarantor, (iii) deposit or transfer such funds into a separate account of an affiliate of the Parent Guarantor as security for the payment of principal of or interest on other indebtedness, or (iv) make a capital contribution of a Term Loan Borrower for the approved construction and operation of hangar project facilities at various airports (the “Portfolio II Projects”, and such restriction on distributions and transfers the “Permissible Uses”). The Amendment permits the release of the Term Loan Facility Surplus Funds beginning on the later of* January 1, 2027or a trigger date based on substantial completion of certain Portfolio II Projects, and requires the Term Loan Borrowers to maintain (i) a historical debt service coverage ratio, and (ii) a projected debt service coverage ratio, in each case determined on the last day of each fiscal quarter of the Term Loan Borrowers, at a ratio ofnot* less than2.00 to1.00.

The Sky III Guaranty Amendment permits the release of excess revenues released from the Master Trust on or after the later of (i)* January 1, 2027*and (ii)three (3) months after the Capitalized Interest End Date provided that (a) there are funds in excess of $800,000 on deposit in the accounts for such excess revenues on release date, and (b) to the extent there is a deficiency in any of the accounts associated with the Term Loan Facility, there are sufficient funds on deposit (in addition to the minimum amount of funds held pursuant to cover such deficiency) and such funds are applied to remedy each such deficiency. The release of excess revenues is also subject to Permissible Uses.

The above release conditions are also subject to the customary condition that therenot be any default under the Term Loan Facility.

17

Second Amendment to Term Loan Facility

On* June 29, 2026,SH Capital II entered into an amendment (the “Second Amendment”) to the Term Loan Facility. The Second Amendment amends the Term Loan Facility to permit the Company to request a borrowingnot* to exceed $20 million under the Term Loan Facility (the “OPF Phase II Borrowing”) for the purpose of financing or reimbursing costs incurred by Sky Harbour Opa Locka Airport LLC (the “OPF Phase II Owner”) in connection with thesecond phase of its construction project at Miami-Opa Locka Executive Airport (the “OPF Phase II Project”). Under the terms of the Second Amendment, the OPF Phase II Project wasnot added to the borrowing base of the Term Loan Facility, nor did the OPF Phase II Owner become a Borrower. Subsequently, on* June 29, 2026,*SH Capital II requested and borrowed the OPF Phase II Borrowing of $20 million.

The Second Amendment required that the Company make cash contributions toone or more of the Borrowers in an aggregate amount ofnot less than $20 million (the “Term Loan Facility Replenishment”) to fund eligible capital expenditures associated with the Portfolio II Projects. The Company was permitted to utilize the cash proceeds of the Series2026 Bonds to fulfill the requirements of the Term Loan Facility Replenishment. Pursuant to the Second Amendment the Borrowers agreednot to create or permit a lien on the Company's hangar campus at SJC or its equity interests therein, or income derived therefrom, until the Term Loan Facility Replenishment was complete.

As of* September 30, 2026,*the Company had fulfilled the requirements of the Term Loan Facility Replenishment.

Other Term Loan Facility Activity

On* January 8, 2026,subsidiaries of the Company that own existing and future hangar campuses at CMA and BDL were added to the borrowing base of the Term Loan Facility. Subsequently, on January 8, 2026,*SH Capital II drew funds of approximately $13 million under the Term Loan Facility in order to reimburse the Company for prior advances associated with capital expenditures at BDL and certain other general corporate purposes.

On* April 17, 2026,*the subsidiary of the Company that owns a hangar campus at SLC was added to the borrowing base of the Term Loan Facility. Subsequently, the Company drew funds of approximately $14 million under the Term Loan Facility in order to reimburse the Parent for prior advances associated with capital expenditures at SLC and certain other general corporate purposes.

As of* September 30, 2026,*there was approximately $129.2 million of availability under the Term Loan Facility, subject to borrowing base restrictions.

2026 Yorkville Promissory Note

On* January 27, 2026,Sky issued a non-convertible, unsecured promissory note to YA II PN, Ltd., a Cayman Islands exempt limited company, or its registered assigns (“Yorkville”), in the aggregate principal amount of $10 million (the “January 2026Yorkville Promissory Note”). The issue price for the January 2026*Yorkville Promissory Note was 100% of the aggregate principal amount thereof.

The* January 2026Yorkville Promissory Note accrues interest at a rate of 7.75% per annum (or 18% upon the occurrence of an event of default) and matures on June 8, 2027.Beginning on July 8, 2026,and continuing on the same day of each of thetwelve* successive months thereafter, Sky shall repay a portion of the outstanding balance of the* January 2026Yorkville Promissory Note in amounts equal to approximately $0.8 million. The obligations of Sky under the January 2026Yorkville Promissory Note are guaranteed by the Company pursuant to a separate guaranty agreement between the Company and Yorkville. In connection with and pursuant to the January 2026Yorkville Promissory Note, the Company issued 40,000 shares of Class A Common Stock to Yorkville. The January 2026Yorkville Promissory Note contains customary representations and warranties by Sky and the Company and customary events of default. The proceeds of the January 2026Yorkville Promissory Note may*be used for working capital and general corporate purposes.

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11.Warrants

SHG’s legal predecessor, YAC, issued tothird-party investors 6,799,439 warrants which entitle the holder to purchaseone 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 (the “Private Warrants”) were sold to BOC Yellowstone LLC (the “Sponsor”). Each Private Warrant allows the Sponsor to purchaseone 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, 2023with certain investors, the Company issued tothird*-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 Level1* 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 has classified the Private Warrants as Level2 financial instruments.

No Warrants were exercised during thethree andnine months ended* September 30, 2026and2025*. As of* September 30, 2026*,15,798,155 Warrants remain outstanding.

The closing price of the Warrants was $0.17 and $0.65 per warrant on* September 30, 2026* and* December 31, 2025*, respectively. The aggregate fair value of the outstanding Warrants was approximately $2.7 million and $10.3 million as of* September 30, 2026* and* December 31, 2025*, respectively. During thethree months ended* September 30, 2026* and2025, the Company recorded unrealized gains associated with the change in fair value of the Warrants of approximately $4.6 million and $3.0 million, respectively. During thenine months ended* September 30, 2026* and2025, the Company recorded unrealized gains associated with the change in fair value of the Warrants of approximately $7.6 million and $22.3 million, respectively.

12.Equity

Common Equity

As of* September 30, 2026*, there were 39,622,045 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 toone 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 donot 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.

Registered Direct Offerings

On* August 10, 2026and August 21, 2026,the Company entered into stock purchase agreements with certain investors (the “Investors”), pursuant to which the Company agreed to sell an aggregate of 5,000,000 shares of Class A Common Stock to the Investors in registered direct offerings at a purchase price of $10.00 per share. The closings of the offerings occurred on August 12, 2026and August 26, 2026,*respectively. The Company received aggregate gross proceeds of $50.0 million from the offerings, before deducting offering-related expenses.

In connection with the registered direct offerings, the Company and its directors and executive officers and certain holders of more than 5.0% of its outstanding stock (the “Lock-Up Parties”) and the Investors have agreed that for a period of90 days following the closing date, subject to certain exceptions, the Lock-Up Parties willnot sell, pledge, or otherwise transfer or dispose of, directly or indirectly, any shares Class A Common Stock or securities convertible into or exchangeable or exercisable for any shares of Class A Common Stock.

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At-the-Market Facility

On* March 27, 2024,the Company 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 the Company may,from time to time, at its 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, the Company maysell the shares through B. Riley by any method permitted that is deemed an “at the market” offering as defined in Rule415* under the Securities Act of1933, as amended. 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 the Company, including any price or size limits or other customary parameters or conditions the Company* may*impose. The Company 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.

On* December 31, 2025,the Company entered into an Amended and Restated At Market Issuance Sales Agreement (the “A&R ATM Agreement”) with B. Riley and Yorkville Securities, LLC (“Yorkville Securities” and, together with B. Riley, the “Sales Agents”), pursuant to which, among other things, Yorkville Securities was added as an additional sales agent. Pursuant to the A&R ATM Agreement, the Company may*offer and sell, from time to time through the Sales Agents, shares of its Class A Common Stock, having an aggregate offering price of up to $100.0 million (the “ATM Shares”). The material terms and conditions of the ATM Agreement otherwise remain unchanged.

The Company isnot obligated to sell any shares under the ATM Agreement or the A&R 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 the Sales Agents, of all of the shares subject to the ATM Agreement and (ii) termination of the ATM Agreement in accordance with its terms.

During thethree months ended* September 30, 2026*, there wereno sales under the ATM Facility. During thenine months ended* September 30, 2026*, the Company sold 242,483 shares of Class A Common Stock under the ATM Facility at a weighted-average sales price of $10.49.

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* September 30, 2026* and represents the Sky Common Units held by holders other than SHG. The holders of LLC Interests* mayexchange Sky Common Units along with an equal number of Class B Common Shares, for Class A Common Shares of the Company. The LLC Interests donot* 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* September 30, 2026*, the LLC interests owned approximately 51.5% of the Sky Common Units outstanding.

20

13.Equity Compensation

Restricted Stock Units (“RSUs”)

In* February 2026,the Company granted time-based RSUs to certain employees, consultants, and non-employee directors under the Company’s2022* Incentive Award Plan.1,015,450 time-based awards were granted at a grant date fair value of $8.97, which will vest ratably over afour-year period beginning on thefirst anniversary of the grant date and ending on* February 18, 2030.*

During thethree andnine months ended* September 30, 2026*, the Company recognized stock compensation expense of approximately $1.3 million and $4.0 million, respectively, associated with all RSU awards. During thethree andnine months ended* September 30, 2025*, the Company recognized stock compensation expense of approximately $1.8 million and $3.9 million, respectively, associated with all RSU awards, inclusive of the recognition of approximately $0.7 million of expense associated with the accelerated vesting of unvested RSUs upon the departure of the Company's former Chief Operating Officer. The Company recognizes expense associated with RSU awards within employee compensation and benefits within the statement of operations. As of* September 30, 2026*, there are 1,473,475 unvested RSUs outstanding with a weighted average grant date fair value of $9.55. The unrecognized compensation costs associated with all unvested RSUs at* September 30, 2026* was approximately $12.1 million that is expected to be recognized over a weighted-average future period of 2.9 years.

Non-qualified Stock Options (“NSOs”)

In* February 2026,the Company granted to certain employees options to purchase 1,187,443 shares of Class A Common Stock at an exercise price of $8.85 under the Company’s2022* Incentive Award Plan. The NSOs vest ratably over afour-year period beginning on thesixth anniversary of the grant date and have a term of 10 years. The options were valued at $5.19 using a Black-Scholes pricing model.

During thethree andnine months ended* September 30, 2026*, the Company recognized stock compensation expense of approximately $0.4 million and $1.1 million, respectively, associated with all NSO awards. During thethree andnine months ended* September 30, 2025*, the Company recognized stock compensation expense of approximately $0.2 million and $0.6 million, respectively, associated with all NSO awards. The unrecognized compensation costs associated with all unvested NSOs at* September 30, 2026*was approximately $11.6 million that is expected to be recognized over a weighted-average future period of 7.7 years.

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14.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 donot participate in the earnings or losses of the Company and are thereforenot participating securities. As such, separate presentation of basic and diluted earnings per share of Class B Common Stock under thetwo-class method hasnot been presented.

Three Months EndedNine Months Ended
September 30, 2026September 30, 2025September 30, 2026September 30, 2025
Numerator:
Net (loss) income$(2,819)$(4,653)$(16,160)$577
Less: Net loss attributable to non-controlling interests(2,747)(2,775)(9,272)(8,622)
Basic net (loss) income attributable to Sky Harbour Group Corporation shareholders(72)(1,878)(6,888)9,199
Less: Net loss attributable to non-controlling interests---(8,622)
Diluted net (loss) income attributable to Sky Harbour Group Corporation shareholders(72)(1,878)(6,888)577
Denominator:
Basic weighted average shares of Class A Common Stock outstanding37,14333,88135,23533,792
Effect of dilutive exchange of Class B Common Stock---42,046
Effect of dilutive exchange of Sky Incentive Units---1,857
Effect of dilutive restricted stock units---68
Diluted weighted average shares outstanding37,14333,88135,23577,763
(Loss) earnings per share of Class A Common Stock – Basic$(0.00)$(0.06)$(0.20)$0.27
(Loss) earnings per share of Class A Common Stock – Diluted$(0.00)$(0.06)$(0.20)$0.01

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

Three Months EndedNine months ended
September 30, 2026September 30, 2025September 30, 2026September 30, 2025
Shares subject to unvested restricted stock units1,4739891,473757
Shares issuable upon the exercise of unvested stock options2,3131,1252,3131,125
Shares issuable upon the exercise of Warrants15,79815,79815,79815,798
Shares issuable upon the exchange of Class B Common Stock42,04642,04642,046-
Shares issuable upon the exercise and exchange of Sky Incentive Units1,8601,8601,8604

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15.Accumulated Other Comprehensive Income

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

Unrealized gain onAvailable-for-saleSecuritiesTotal
Balance as of December 31, 2025$-$-
Other comprehensive income before reclassifications244244
Amounts reclassified to other (income) expense(244)(244)
Balance as of September 30, 2026$-$-
Unrealized gain onAvailable-for-saleSecurities · Total
Balance as of December 31, 2024$53$53
Other comprehensive income before reclassifications7070
Amounts reclassified to other (income) expense(123)(123)
Balance as of September 30, 2025$-$-
16.Supplemental Cash Flow Information

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

Nine months ended
September 30, 2026September 30, 2025
Accrued costs of construction, including capitalized interest$23,989$11,109
Accrued costs of long-lived assets403787
Debt issuance costs and premium amortized to cost of construction690146

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

Nine months ended
September 30, 2026September 30, 2025
Right-of-use assets obtained in exchange for operating lease liabilities$16,859$20,238
Net (decrease) increase in right-of-use assets and operating lease liabilities due to lease remeasurement(1,133)1,578

The following table summarizes interest paid:

Nine months ended
September 30, 2026September 30, 2025
Interest paid$10,671$7,335

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:

Nine months ended
September 30, 2026September 30, 2025
Cash, beginning of year$20,718$42,442
Restricted cash, beginning of year16,30651,917
Cash and restricted cash, beginning of year$37,024$94,359
Cash, end of period$43,858$23,505
Restricted cash, end of period112,63412,968
Cash and restricted cash, end of period$156,492$36,473

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17.Segment Information

The Company hasone 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* September 30, 2026*, 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.

18.Commitments and Contingencies

In addition to the lease payment commitments discussed in Note8 —Leases — Lessee, 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.

AirportProjectMinimum Spend CommitmentTimeframe Commitments
CMACMA Phase I$20.0 million of capital improvements.Complete minimum spend commitment within 60 months of the effective date of the lease.
DVTDVT Phase II$14.6 million of capital improvements.Complete construction within 36 months of receiving all permitting documents.
ORLORL Phase I$30.0 million of capital improvements.Complete minimum spend commitment within 36 months of the effective date of the lease.
ORLORL Phase II$5.0 million of capital improvements.Commence construction within 5 years of effective date of the lease and complete construction within 24 months of construction commencement.
POUPOU Phase I$25.0 million of capital improvements.Commence construction within 6 months of the issuance of permits and complete construction within 15 months of construction commencement.
PWKPWK Phase INone.Commence construction within 6 months of the issuance of permits and complete construction within 18 months of construction commencement.
SJCAll Phases$8.1 million of capital improvements.Complete minimum spend commitment within 15 years of lease commencement.
SLCSLC Phase I$40.0 million of capital improvements.None.
TTNTTN Phase I$30.0 million of capital improvements.Complete construction within 36 months of receiving all permitting documents or no later than 48 months after the effective date of the lease.

As of* September 30, 2026*, the Company has contracts for construction of the OPF Phase II, BDL Phase I, and POU Phase I construction projects. The Company* mayterminate any of the contracts or suspend construction without cause. There areno* termination penalties under such construction contracts.

The Company is involved in 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 doesnot 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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19.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 thestandard overnight financing right plus 2% per annum.

As of* September 30, 2026* and* December 31, 2025*, the Company had loaned a total of $1.2 million and $1.1 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 19, 2024,the Company entered into an additional non-exclusive agreement with Echo Echo, LLC for the use of an EpicE1000GX* aircraft. The effective date of the agreement was* August 30, 2024and the agreement automatically renews annually. The agreement can be terminated without penalty if either party provides30* 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 thethree andnine months ended* September 30, 2026*, the Company recognized approximately $0.1 million and $0.3 million of expense, respectively, within pursuit and marketing expenses under the terms of this agreement. For thethree andnine months ended* September 30, 2025,the Company recognized approximately $0.1 million and $0.4 million of expense, respectively, within pursuit and marketing expenses under the terms of this agreement. The related liability is included in Accounts payable, accrued expenses and other liabilities within the consolidated balance sheet as of September 30, 2026*.

Other Relationships

For thethree andnine months ended* September 30, 2026* and2025, the Company recognized less than $0.1 million of expense for consulting services received from a company that employed the Chief Financial Officer until prior to* July 1, 2021.*

On* June 1, 2025,the Company hired an individual to serve as its head of construction and president ofone* of its wholly-owned subsidiaries, Ascend Aviation Services (“Ascend”). Such individual was previously employed by, and continues to hold a financial interest in, a company that provides construction services to the Company (the “General Contractor”). The General Contractor was previously engaged by the Company to serve as general contractor in connection with its SGR and APA Phase I development project. During thethree andnine months ended* September 30,2025, the Company incurred $2.1 million and $7.9 million of construction costs associated with the General Contractor at its APA Phase I project, respectively. The General Contractor was also previously engaged by the Company to serve as an architectural and engineering consultant in connection with its ADS Phase II development project. During thethree andnine months ended September 30, 2026*, the Company incurred $0.1 million and $0.1 million, respectively, of construction costs associated with such services. During thethree andnine months ended* September 30,2025, the Company incurred $0 and $0.1 million of construction costs associated with the ADS Phase II development project, respectively. All such costs are capitalized and included as a component of cost of construction within the consolidated balance sheet as of September 30, 2026*.

Ascend shares office space, equipment, and various administrative services with the General Contractor. Costs incurred by the General Contractor are allocated between Ascend and the General Contractor and are charged at cost. During thethree andnine months ended* September 30, 2026* the allocated costs from the General Contractor to Ascend were less than $0.1 million and $0.1 million, respectively. During each of thethree andnine months ended* September 30, 2025*the allocated costs from the General Contractor to Ascend were approximately$0.1 million.

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