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Table of Contents

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

​

☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

​

For the quarterly period ended March 31, 2026

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 No. 001-41503

INNOVATIVE SOLUTIONS AND SUPPORT, INC.

(Exact name of registrant as specified in its charter)

​

​ | ​ | ​
PENNSYLVANIA | ​ ​ ​ | 23-2507402
(State or Other Jurisdiction of Incorporation or Organization) | ​ | (I.R.S. Employer Identification No.)
​ | ​ | ​
720 Pennsylvania Drive, Exton, Pennsylvania | ​ | 19341
(Address of Principal Executive Offices) | ​ | (Zip Code)

​

(610) 646-9800

(Registrant’s Telephone Number, Including Area Code)

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

​

Title of each class | ​ ​ ​ | Trading Symbol(s) | ​ ​ ​ | Name of each exchange on which registered
Common Stock, par value $0.001 per share | ​ | ISSC | ​ | Nasdaq Stock Market LLC

​

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

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

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

​

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

​

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

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

As of April 30, 2026, there were 17,892,747 shares of the Registrant’s Common Stock, with par value of $0.001 per share, outstanding.

​

​

​

Table of Contents

INNOVATIVE SOLUTIONS AND SUPPORT, INC.

FORM 10-Q March 31, 2026

INDEX

​

|  | Page No.
PART I. | FINANCIAL INFORMATION | ​
Item 1. | Financial Statements (Unaudited) | ​
| Condensed Consolidated Balance Sheets - March 31, 2026 and September 30, 2025 (unaudited) | 1
| Co ndensed C onsolidated Statements of Operations - Three and Six Months Ended March 31, 2026 and 2025 (unaudited) | 2
| Co ndensed C onsolidated Statements of Shareholders’ Equity – Three and Six Months Ended March 31, 2026 and 2025 (unaudited) | 3 - 4
| Co ndensed C onsolidated Statements of Cash Flows - Six Months Ended March 31, 2026 and 2025 (unaudited) | 5
| Notes to Condensed Consolidated Financial Statements (unaudited) | 6 - 32
Item 2. | Management’s Discussion and Analysis of Financial Condition and Results of Operations | 33 - 33
Item 3. | Quantitative and Qualitative Disclosures about Market Risk | 42
Item 4. | Controls and Procedures | 42
|  | ​
PART II. | OTHER INFORMATION | ​
Item 1. | Legal Proceedings | 43
Item 1A. | Risk Factors | 43
Item 2. | Unregistered Sales of Equity Securities and Use of Proceeds | 43
Item 3. | Defaults upon Senior Securities | 43
Item 4. | Mine Safety Disclosures | 43
Item 5. | Other Information | 43
|  | ​
Item 6. | Exhibits | 44
SIGNATURES |  | 45

​

​

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Table of Contents

PART I—FINANCIAL INFORMATION

Item 1- Financial Statements

INNOVATIVE SOLUTIONS AND SUPPORT, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(unaudited)

​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ ​ ​ | March 31, | ​ ​ ​ | September 30,
​ | ​ | 2026 | ​ | 2025
ASSETS | ​ | ​ | ​ | ​ | ​ | ​
Current assets | ​ | ​ | ​ | ​ | ​ | ​
Cash and cash equivalents | ​ | $ | 6,764,157 | ​ | $ | 2,693,595
Accounts receivable | ​ |  | 13,188,080 | ​ |  | 12,956,476
Contract assets | ​ |  | 1,655,807 | ​ |  | 5,320,353
Inventories | ​ | ​ | 28,067,469 | ​ |  | 25,802,181
Prepaid inventory | ​ | ​ | — | ​ | ​ | 2,562,297
Prepaid expenses and other current assets | ​ |  | 3,541,373 | ​ |  | 1,392,398
​ | ​ | ​ | ​ | ​ | ​ | ​
Total current assets | ​ | ​ | 53,216,886 | ​ | ​ | 50,727,300
​ | ​ | ​ | ​ | ​ | ​ | ​
Goodwill | ​ | ​ | 15,773,104 | ​ | ​ | 6,703,104
Intangible assets, net | ​ | ​ | 46,944,050 | ​ | ​ | 23,582,615
Property and equipment, net | ​ |  | 20,722,377 | ​ |  | 18,804,536
Deferred income taxes | ​ | ​ | 939,192 | ​ | ​ | 2,824,132
Other assets | ​ |  | 670,833 | ​ |  | 718,466
​ | ​ | ​ | ​ | ​ | ​ | ​
Total assets | ​ | $ | 138,266,442 | ​ | $ | 103,360,153
​ | ​ | ​ | ​ | ​ | ​ | ​
LIABILITIES AND SHAREHOLDERS’ EQUITY | ​ | ​ | ​ | ​ | ​ | ​
Current liabilities | ​ | ​ | ​ | ​ | ​ | ​
Current portion of long-term debt, net | ​ | $ | 5,641,501 | ​ | $ | 2,438,802
Accounts payable | ​ | ​ | 4,487,502 | ​ | ​ | 3,578,411
Accrued expenses | ​ |  | 4,128,653 | ​ |  | 8,161,967
Contract liabilities | ​ | ​ | 2,220,944 | ​ | ​ | 2,481,929
​ | ​ | ​ | ​ | ​ | ​ | ​
Total current liabilities | ​ | ​ | 16,478,600 | ​ | ​ | 16,661,109
​ | ​ | ​ | ​ | ​ | ​ | ​
Long-term debt, net | ​ | ​ | 49,279,407 | ​ | ​ | 21,700,005
Other liabilities | ​ | ​ | 396,497 | ​ | ​ | 396,497
​ | ​ | ​ | ​ | ​ | ​ | ​
Total liabilities | ​ | ​ | 66,154,504 | ​ | ​ | 38,757,611
​ | ​ | ​ | ​ | ​ | ​ | ​
Commitments and contingencies (See Note 7) | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
Shareholders’ equity | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
Preferred stock, 10,000,000 shares authorized, $.001 par value, of which 200,000 shares are authorized as Class A Convertible stock. No shares issued and outstanding at March 31, 2026 and September 30, 2025 | ​ |  | — | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​
Common stock, $.001 par value: 75,000,000 shares authorized, 18,168,575 and 17,970,453 issued at March 31, 2026 and September 30, 2025, respectively | ​ | ​ | 17,829 | ​ | ​ | 17,631
​ | ​ | ​ | ​ | ​ | ​ | ​
Additional paid-in capital | ​ |  | 39,767,173 | ​ |  | 39,751,130
Retained earnings | ​ |  | 35,787,908 | ​ |  | 28,294,753
Treasury stock, at cost, 339,644 shares at March 31, 2026 and at September 30, 2025, respectively | ​ |  | (3,460,972) | ​ |  | (3,460,972)
​ | ​ | ​ | ​ | ​ | ​ | ​
Total shareholders’ equity | ​ | ​ | 72,111,938 | ​ | ​ | 64,602,542
​ | ​ | ​ | ​ | ​ | ​ | ​
Total liabilities and shareholders’ equity | ​ | $ | 138,266,442 | ​ | $ | 103,360,153

See accompanying notes to the unaudited condensed consolidated financial statements.

​

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INNOVATIVE SOLUTIONS AND SUPPORT, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(unaudited)

​

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31, | ​ | Six Months Ended March 31, | ​
​ | ​ ​ ​ | 2026 | ​ ​ ​ | 2025 | ​ ​ ​ | 2026 | ​ ​ ​ | 2025 | ​ ​ ​
Net sales: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Product | ​ | $ | 14,310,928 | ​ | $ | 13,180,032 | ​ | $ | 27,875,059 | ​ | $ | 23,164,266 | ​
Services | ​ | ​ | 8,054,101 | ​ | ​ | 8,756,182 | ​ | ​ | 16,297,053 | ​ | ​ | 14,740,677 | ​
Total net sales | ​ |  | 22,365,029 | ​ |  | 21,936,214 | ​ |  | 44,172,112 | ​ |  | 37,904,943 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cost of sales: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Product | ​ |  | 7,216,013 | ​ |  | 5,275,918 | ​ |  | 13,849,386 | ​ |  | 11,538,608 | ​
Services | ​ | ​ | 3,714,031 | ​ | ​ | 5,393,073 | ​ | ​ | 7,003,471 | ​ | ​ | 8,488,655 | ​
Total cost of sales | ​ |  | 10,930,044 | ​ |  | 10,668,991 | ​ |  | 20,852,857 | ​ |  | 20,027,263 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Gross profit | ​ |  | 11,434,985 | ​ |  | 11,267,223 | ​ |  | 23,319,255 | ​ |  | 17,877,680 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating expenses: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Research and development | ​ |  | 1,789,348 | ​ |  | 867,228 | ​ |  | 3,116,963 | ​ |  | 1,974,964 | ​
Selling, general and administrative | ​ |  | 4,702,222 | ​ |  | 3,415,675 | ​ |  | 8,966,471 | ​ |  | 7,574,578 | ​
Total operating expenses | ​ |  | 6,491,570 | ​ |  | 4,282,903 | ​ |  | 12,083,434 | ​ |  | 9,549,542 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating income | ​ |  | 4,943,415 | ​ |  | 6,984,320 | ​ |  | 11,235,821 | ​ |  | 8,328,138 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Interest expense | ​ |  | (508,860) | ​ |  | (387,318) | ​ |  | (1,004,931) | ​ |  | (814,467) | ​
Interest income | ​ |  | 3,705 | ​ |  | 4,628 | ​ |  | 7,823 | ​ |  | 9,878 | ​
Other income | ​ |  | — | ​ |  | — | ​ |  | 64,100 | ​ |  | 6 | ​
Income before income taxes | ​ |  | 4,438,260 | ​ |  | 6,601,630 | ​ |  | 10,302,813 | ​ |  | 7,523,555 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Income tax expense | ​ |  | 1,004,168 | ​ |  | 1,265,288 | ​ |  | 2,809,658 | ​ |  | 1,451,021 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income | ​ | $ | 3,434,092 | ​ | $ | 5,336,342 | ​ | $ | 7,493,155 | ​ | $ | 6,072,534 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income per common share: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic | ​ | $ | 0.19 | ​ | $ | 0.30 | ​ | $ | 0.42 | ​ | $ | 0.35 | ​
Diluted | ​ | $ | 0.19 | ​ | $ | 0.30 | ​ | $ | 0.41 | ​ | $ | 0.34 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average shares outstanding: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic | ​ |  | 17,801,685 | ​ |  | 17,548,844 | ​ |  | 17,747,927 | ​ |  | 17,531,328 | ​
Diluted | ​ |  | 18,302,283 | ​ |  | 17,643,994 | ​ |  | 18,182,892 | ​ |  | 17,613,686 | ​

​

See accompanying notes to the unaudited condensed consolidated financial statements.

​

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INNOVATIVE SOLUTIONS AND SUPPORT, INC.

CONDENSED CONSOLIDATED STATEMENT OF SHAREHOLDERS’ EQUITY

(unaudited)

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Additional | ​ | ​ | ​ | ​ | ​ | ​ | Total
​ | ​ | Common | ​ | Paid-In | ​ | Retained | ​ | Treasury | ​ | shareholders’
​ | ​ ​ ​ | Stock | ​ ​ ​ | Capital | ​ ​ ​ | Earnings | ​ ​ ​ | Stock | ​ ​ ​ | equity
Balance, September 30, 2025 | ​ | $ | 17,631 | ​ | $ | 39,751,130 | ​ | $ | 28,294,753 | ​ | $ | (3,460,972) | ​ | $ | 64,602,542
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Share-based compensation | ​ | ​ | — | ​ | ​ | 915,924 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 915,924
Issuance of common stock, net of shares withheld for taxes | ​ | ​ | 141 | ​ | ​ | (833,253) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (833,112)
Net income | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 4,059,063 | ​ | ​ | — | ​ | ​ | 4,059,063
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance, December 31, 2025 | ​ | $ | 17,772 | ​ | $ | 39,833,801 | ​ | $ | 32,353,816 | ​ | $ | (3,460,972) | ​ | $ | 68,744,417
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Share-based compensation | ​ | ​ | — | ​ | ​ | 496,294 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 496,294
Issuance of common stock, net of shares withheld for taxes | ​ | ​ | 57 | ​ | ​ | (562,922) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (562,865)
Net income | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 3,434,092 | ​ | ​ | — | ​ | ​ | 3,434,092
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance, March 31, 2026 | ​ | $ | 17,829 | ​ | $ | 39,767,173 | ​ | $ | 35,787,908 | ​ | $ | (3,460,972) | ​ | $ | 72,111,938

​

See accompanying notes to the unaudited condensed consolidated financial statements.

​

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Table of Contents

INNOVATIVE SOLUTIONS AND SUPPORT, INC.

CONDENSED CONSOLIDATED STATEMENT OF SHAREHOLDERS’ EQUITY

(unaudited)

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ ​ ​ | ​ | ​ | ​ ​ ​ | ​ | ​ | ​ ​ ​ | ​ | ​ | ​ ​ ​ | ​ | ​ | ​ ​ ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Additional | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Common | ​ | Paid-In | ​ | Retained | ​ | Treasury | ​ | ​ | ​
​ | ​ | Stock | ​ | Capital | ​ | Earnings | ​ | Stock | ​ | Total
Balance, September 30, 2024 | ​ | $ | 17,503 | ​ | $ | 37,415,031 | ​ | $ | 12,667,093 | ​ | $ | (3,460,972) | ​ | $ | 46,638,655
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Share-based compensation | ​ | ​ | 36 | ​ | ​ | 396,625 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 396,661
Net income | ​ |  | — | ​ |  | — | ​ |  | 736,192 | ​ |  | — | ​ |  | 736,192
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance, December 31, 2024 | ​ | $ | 17,539 | ​ | $ | 37,811,656 | ​ | $ | 13,403,285 | ​ | $ | (3,460,972) | ​ | $ | 47,771,508
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Share-based compensation | ​ | ​ | 17 | ​ | ​ | 405,025 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 405,042
Net income | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 5,336,342 | ​ | ​ | — | ​ | ​ | 5,336,342
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance, March 31, 2025 | ​ | $ | 17,556 | ​ | $ | 38,216,681 | ​ | $ | 18,739,627 | ​ | $ | (3,460,972) | ​ | $ | 53,512,892

​

See accompanying notes to the unaudited condensed consolidated financial statements.

​

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INNOVATIVE SOLUTIONS AND SUPPORT, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(unaudited)

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Six Months Ended March 31, | ​
​ | ​ ​ ​ | 2026 | ​ ​ ​ | 2025 | ​ ​ ​
CASH FLOWS FROM OPERATING ACTIVITIES: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income | ​ | $ | 7,493,155 | ​ | $ | 6,072,534 | ​
Adjustments to reconcile net income to net cash provided by operating activities: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Depreciation and amortization | ​ |  | 1,885,116 | ​ |  | 2,004,641 | ​
Share-based compensation | ​ |  | 1,412,218 | ​ |  | 801,703 | ​
Amortization of loan fees | ​ | ​ | 106,470 | ​ | ​ | — | ​
Deferred income taxes | ​ |  | 1,884,940 | ​ |  | (504,329) | ​
(Increase) decrease in: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Accounts receivable | ​ |  | (231,604) | ​ |  | (1,210,605) | ​
Contract assets | ​ |  | 3,664,546 | ​ |  | (89,313) | ​
Inventories | ​ |  | 297,009 | ​ |  | (4,590,467) | ​
Prepaid expenses and other current assets | ​ |  | (1,504,893) | ​ |  | (594,459) | ​
Other non-current assets | ​ |  | (26,738) | ​ |  | (12,500) | ​
Increase (decrease) in: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Accounts payable | ​ |  | 909,091 | ​ |  | 2,395,085 | ​
Accrued expenses | ​ |  | (2,488,189) | ​ |  | (568,588) | ​
Income taxes payable | ​ |  | (2,689,205) | ​ |  | (965,650) | ​
Contract liabilities | ​ |  | (260,985) | ​ |  | 391,312 | ​
Net cash provided by operating activities | ​ |  | 10,450,931 | ​ |  | 3,129,364 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
CASH FLOWS FROM INVESTING ACTIVITIES: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Purchases of property and equipment | ​ |  | (2,734,392) | ​ |  | (1,817,015) | ​
Acquisition of businesses | ​ | ​ | (33,000,000) | ​ | ​ | — | ​
Net cash used in investing activities | ​ |  | (35,734,392) | ​ |  | (1,817,015) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
CASH FLOWS FROM FINANCING ACTIVITIES: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Debt payments | ​ | ​ | — | ​ | ​ | (625,678) | ​
Delayed Draw Term Loan proceeds | ​ | ​ | 32,000,000 | ​ | ​ | — | ​
Term Loan principal payments | ​ | ​ | (1,250,000) | ​ | ​ | — | ​
Taxes paid related to net share settlement of equity awards | ​ |  | (1,395,977) | ​ |  | — | ​
Net cash provided by (used in) financing activities | ​ |  | 29,354,023 | ​ |  | (625,678) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net increase in cash and cash equivalents | ​ |  | 4,070,562 | ​ |  | 686,671 | ​
Cash and cash equivalents, beginning of year | ​ |  | 2,693,595 | ​ |  | 538,977 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cash and cash equivalents, end of year | ​ | $ | 6,764,157 | ​ | $ | 1,225,648 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cash paid for income taxes | ​ | $ | 3,617,000 | ​ | $ | 2,921,000 | ​
Cash paid for interest | ​ | ​ | 875,167 | ​ | ​ | 767,820 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
SUPPLEMENTAL DISCLOSURE OF NONCASH INFORMATION | ​ | ​ | ​ | ​ | ​ | ​ | ​
Transfer from prepaid inventory to inventory | ​ | $ | 2,562,297 | ​ | $ | 1,530,265 | ​
Transfer from prepaid expenses and other current assets to PP&E | ​ | $ | — | ​ | $ | 119,647 | ​
Transfer from intangible assets to goodwill | ​ | $ | — | ​ | $ | 1,490,000 | ​
Transfer from prepaid expenses to intangible assets | ​ | $ | — | ​ | $ | 275,995 | ​

​

See accompanying notes to the unaudited condensed consolidated financial statements.

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INNOVATIVE SOLUTIONS AND SUPPORT, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)

​

1. Summary of Significant Accounting Policies

Certain of Innovative Solutions and Support, Inc.’s (the “Company,” “IA,” “we,” or “us”) dba Innovative Aerosystems and its subsidiaries significant accounting policies are described below. All of the Company’s significant accounting policies are disclosed in the notes to the Company’s audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended September 30, 2025.

Description of the Company

Incorporated in Pennsylvania in 1988, IA is a vertically integrated provider of flight solutions and equipment to commercial air transport, general aviation markets, the United States Department of Defense (“DoD”) and allied foreign militaries.

We operate in one business segment that designs, develops, manufactures, sells and services avionics products and systems for retrofit applications and original equipment manufacturers (“OEMs”).

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements are presented pursuant to the rules and regulations of the United States Securities and Exchange Commission (the “SEC”) in accordance with the disclosure requirements for the quarterly report on Form 10-Q and, therefore, do not include all of the information and footnotes required by generally accepted accounting principles in the United States (“GAAP”) for complete annual financial statements. In the opinion of Company management, the unaudited condensed consolidated financial statements reflect all adjustments (consisting of normal recurring adjustments) necessary to state fairly the results for the interim periods presented. The condensed consolidated balance sheet as of September 30, 2025 is derived from the audited financial statements of the Company. Operating results for the three and six months ended March 31, 2026 are not necessarily indicative of the results that may be expected for the fiscal year ending September 30, 2026 which cannot be determined at this time. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes of the Company included in the Company’s Annual Report on Form 10-K for the fiscal year ended September 30, 2025.

Principles of Consolidation

The Company’s condensed consolidated financial statements include the accounts of its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation.

Use of Estimates

The financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”), which require management to make estimates and assumptions that affect the amounts reported in the financial statements. Actual results could differ from those estimates. Estimates are used in accounting for, among other items, valuation of tangible and intangible assets acquired, evaluation of allowances for credit loss accounts, inventory obsolescence, product warranty cost liabilities, income taxes, engineering development contracts (“EDC”) revenue recognition, the useful lives of long-lived assets for depreciation and amortization, the recoverability of long-lived assets, evaluation of goodwill and indefinite-lived intangible assets impairment and contingencies. Estimates and assumptions are reviewed periodically, and the effects of changes, if any, are reflected in the consolidated statements of operations in the period they are determined.

Business Combinations

The Company evaluates each of its acquisitions in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 805, Business Combinations (“ASC 805”), to determine whether the transaction is a business combination or an asset acquisition. In determining whether an acquisition should be accounted for as a business combination or an asset acquisition, the Company first performs a screening test to determine whether substantially all of the fair value of the gross assets

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acquired is concentrated in a single identifiable asset or a group of similar identifiable assets. If this is the case, the acquired asset is not deemed to be a business and is instead accounted for as an asset acquisition. If this is not the case, the Company then further evaluates whether the acquired asset includes, at a minimum, an input and a substantive process that together significantly contribute to the ability to create outputs. If so, the Company concludes that the acquired asset is a business.

The Company accounts for business acquisitions using the acquisition method of accounting. Under this method of accounting, assets acquired and liabilities assumed are recorded at their respective fair values at the date of the acquisition. When determining the fair values of assets acquired and liabilities assumed, management makes significant estimates and assumptions. The Company’s estimates of fair value are based upon assumptions believed to be reasonable, but these assumptions are inherently uncertain and unpredictable and, as a result, actual results may differ from estimates. Any excess of the purchase price over the fair value of the net assets acquired is recognized as goodwill.

During the measurement period, which may be up to one year from the acquisition date, the Company adjusts the provisional amounts of assets acquired and liabilities assumed with the corresponding offset to goodwill to reflect new information obtained about facts and circumstances that existed as of the acquisition date that, if known, would have affected the measurement of the amounts recognized as of that date. Upon the conclusion of the measurement period or final determination of the values of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded within the Company’s consolidated statements of operations.

We allocate the purchase price of acquired entities to the underlying tangible and identifiable intangible assets acquired and liabilities assumed based on their estimated fair values, with any excess recorded as goodwill. The valuations of the acquired assets and liabilities will impact the determination of future operating results. Determining the fair value of assets we acquire and liabilities we assume requires management’s judgment and often involves the use of significant estimates and assumptions, including assumptions with respect to future cash inflows and outflows, discount rates, asset lives and market multiples, among other items. We determine the fair values of intangible assets acquired generally in consultation with third-party valuation advisors. Fair value adjustments to the assets and liabilities are recognized and the results of operations of the acquired business are included in our consolidated financial statements from the effective date of the acquisition.

Intangible Assets

The Company’s identifiable intangible assets primarily consist of license agreements, customer relationships and backlog. Intangible assets acquired in a business combination are recognized at fair value using generally accepted valuation methods deemed appropriate for the type of intangible asset acquired and are reported separately from any goodwill recognized.

Intangible assets with a finite life are amortized over their estimated useful life and are reported net of accumulated amortization. They are assessed for impairment in accordance with the Company’s policy on assessing long-lived assets for impairment described below.

Indefinite-lived intangible assets are not amortized, but are subject to an annual impairment test, or when events or circumstances dictate, more frequently. The impairment review for indefinite-lived intangible assets can be performed using a qualitative or quantitative impairment assessment. The quantitative assessment consists of a comparison of the fair value of the indefinite-lived intangible asset with its carrying amount. The Company initially does a qualitative assessment for impairment of intangible assets and will utilize quantitative testing based on results from the qualitative assessment, if deemed necessary. If the carrying amount exceeds its fair value, an impairment loss is recognized in an amount equal to that excess. If the fair value exceeds its carrying amount, the indefinite-lived intangible asset is not considered impaired.

Goodwill

Goodwill represents the future economic benefit arising from other assets acquired that could not be individually identified and separately recognized. The recorded amounts of goodwill from business combinations are based on management’s best estimates of the fair values of assets acquired, and liabilities assumed at the date of acquisition. Goodwill is assigned to the reporting units that are expected to benefit from the synergies of the business combination that generated the goodwill. The Company’s goodwill impairment test is performed at the reporting unit level. Reporting units are determined based on an evaluation of the Company’s operating segments and the components making up those operating segments.

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Goodwill is tested for impairment annually, or in an interim period, if certain changes in circumstances indicate a possibility that an impairment may exist. Factors to consider that may indicate an impairment may exist are: the macroeconomic conditions, industry and market considerations such as a significant adverse change in the business climate, cost factors, overall financial performance such as current-period operating results or cash flow declines combined with a history of operating results or cash flow declines or a projection/forecast that demonstrates continuing declines in the cash flow or the inability to improve the operations to forecasted levels, and any entity-specific events.

If the Company determines that it is more likely than not that the fair value of the reporting unit is below the carrying amount as part of its qualitative assessment, a quantitative assessment of goodwill is required. In the quantitative evaluation, the fair value of the reporting unit is determined and compared to the carrying value. If the fair value is greater than the carrying value, then the goodwill is deemed not to be impaired, and no further action is required. If the fair value is less than the carrying value, goodwill is considered impaired and a charge is reported as impairment of goodwill in the consolidated statements of operations.

Cash and Cash Equivalents

​

Highly liquid investments, purchased with an original maturity of three months or less, are classified as cash equivalents. Cash equivalents at March 31, 2026 and September 30, 2025 consist of cash on deposit and cash invested in money market funds with financial institutions. Due to the short maturity of these instruments, the carrying values on our consolidated balance sheets approximate fair value.

​

Accounts Receivable

​

We record receivables derived from contracts with customers at net realizable value and they generally do not bear interest. An allowance for estimated uncollectible accounts is established if uncollectability is considered probable. This value may include an allowance for estimated uncollectible accounts to reflect any losses anticipated on the accounts receivable balances which is charged to the provision for doubtful accounts. When determining uncollectability, we consider historical write-offs by customer, level of past due accounts and economic status of the customers. Write-offs are recorded at the time a customer receivable is deemed uncollectible. The Company had no allowance for credit losses as of fiscal periods ended March 31, 2026 and September 30, 2025, respectively.

​

Property and Equipment

Property, plant and equipment is recorded at cost. Depreciation and amortization is generally provided on the straight-line method over the estimated useful lives of the various assets. Major additions and improvements are capitalized, while maintenance and repairs that do not improve or extend the life of assets are charged to expense as incurred.

The Company’s property, plant and equipment is generally depreciated over the following estimated useful lives:

●Buildings and improvements are depreciated over estimated lives of ten to thirty-nine years.

●Furniture and office equipment is depreciated over estimated lives of five to seven years.

●Computer equipment is depreciated over an estimated life of five years.

●Corporate R&D airplane is depreciated over an estimated life of twelve years.

●Equipment other is depreciated over estimated lives of one to nineteen years.

​

Long-Lived Assets

The Company assesses the impairment of long-lived assets in accordance with FASB ASC Topic 360-10, “Property, Plant and Equipment.” This statement requires that long-lived assets be reviewed for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. In addition, long-lived assets to be disposed of should be reported at the lower of the carrying amount or fair value less cost to sell. The Company considers historical performance and future estimated results in its evaluation of potential impairment and then compares the carrying amount of the asset to estimated future cash flows expected to result from use of the asset. If the carrying amount of the asset exceeds the estimated expected undiscounted future cash flows, the Company measures the amount of the impairment by comparing the carrying amount of the asset to its fair value. The estimation of fair value is generally measured by discounting expected future cash flows.

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Fair Value of Financial Instruments

The net carrying amounts of cash and cash equivalents, accounts receivable and accounts payable approximate their fair value because of the short-term nature of these instruments. The carrying value of our debt approximates fair value as the interest rate is variable and approximates current market levels. For financial assets and liabilities measured at fair value on a recurring basis, fair value is the price the Company would receive to sell an asset or pay to transfer a liability in an orderly transaction with a market participant at the measurement date. A three-level fair value hierarchy prioritizes the inputs used to measure fair value as follows:

Level 1 — Unadjusted quoted prices that are available in active markets for the identical assets or liabilities at the measurement date.

Level 2 — Other observable inputs available at the measurement date, other than quoted prices included in Level 1, either directly or indirectly, including:

| ● | Quoted prices for similar assets or liabilities in active markets;

| ● | Quoted prices for identical or similar assets in non-active markets;

| ● | Inputs other than quoted prices that are observable for the asset or liability; and

| ● | Inputs that are derived principally from or corroborated by other observable market data.

Level 3 — Unobservable inputs that cannot be corroborated by observable market data and reflect the use of significant management judgment. These values are generally determined using pricing models for which the assumptions utilize management’s estimates of market participant assumptions.

The following table sets forth by level within the fair value hierarchy the Company’s financial assets and liabilities that were accounted for at fair value on a recurring basis as of March 31, 2026 and September 30, 2025, according to the valuation techniques the Company used to determine their fair values.

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Fair Value Measurement on March 31, 2026
​ | ​ ​ ​ | Quoted Price in | ​ ​ ​ | Significant Other | ​ ​ ​ | Significant
​ | ​ | Active Markets for | ​ | Observable | ​ | Unobservable
​ | ​ | Identical Assets | ​ | Inputs | ​ | Inputs
​ | ​ | (Level 1) | ​ | (Level 2) | ​ | (Level 3)
Assets | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cash and cash equivalents: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Money market funds | ​ | $ | 483,662 | ​ | $ | — | ​ | $ | —

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Fair Value Measurement on September 30, 2025
​ | ​ ​ ​ | Quoted Price in | ​ ​ ​ | Significant Other | ​ ​ ​ | Significant
​ | ​ | Active Markets for | ​ | Observable | ​ | Unobservable
​ | ​ | Identical Assets | ​ | Inputs | ​ | Inputs
​ | ​ | (Level 1) | ​ | (Level 2) | ​ | (Level 3)
Assets | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cash and cash equivalents: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Money market funds | ​ | $ | 484,973 | ​ | $ | — | ​ | $ | —

​

The March 31, 2026 and September 30, 2025 money market funds balance differs from the cash and cash equivalents balance on the condensed consolidated balance sheet due to the timing of sweep transactions within the PNC cash investment accounts.

Revenue Recognition

The Company enters into sales arrangements with customers that, in general, provide for the Company to design, develop, manufacture and deliver large flat panel display systems, flight information computers, autothrottles and advanced monitoring systems

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that measure and display critical flight information, including data relative to aircraft separation, airspeed, altitude and engine and fuel data measurements.

The Company accounts for revenue in accordance with ASC Topic 606, Revenue from Contracts with Customers (“ASC 606”). The core principle of ASC 606 is that an entity recognizes revenue when a customer obtains control of promised goods or services. The amount of revenue recognized reflects the consideration to which the Company expects to be entitled to receive in exchange for these goods or services.

To achieve this core principle, the Company applies the following five steps:

| 1) | Identify the contract with a customer

The Company’s contract with its customers typically is in the form of a purchase order issued to the Company by its customers and, to a lesser degree, in the form of a purchase order issued in connection with a formal contract executed with a customer. In addition, the Company enters fixed-price contracts, in which the Company agrees to perform the specified work for a pre-determined price. The contractual terms of the fixed price contracts are usually long-term, however they often contain a termination for convenience clause that results in us treating these contracts as day-to-day under ASC 606. To the extent our actual costs vary from the estimates upon which the price was negotiated, the Company will generate more or less profit or could incur a loss. For the purpose of accounting for revenue under ASC 606, a contract with a customer exists when (i) the Company enters into an enforceable contract with a customer that defines each party’s rights regarding the goods or services to be transferred and identifies the payment terms related to these goods or services, (ii) the contract has commercial substance and, (iii) the Company determines that collection of substantially all consideration for goods or services that are transferred is probable based on the customer’s intent and ability to pay the promised consideration. The Company applies judgment in determining the customer’s ability and intention to pay, which is based on a variety of factors including the customer’s historical payment experience or, in the case of a new customer, published credit and financial information pertaining to the customer.

| 2) | Identify the performance obligations in the contract

Performance obligations promised in a contract are identified based on the goods or services that will be transferred to the customer that are both capable of being distinct, whereby the customer can benefit from the good or service either on its own or together with other resources that are readily available from third parties or from the Company, and are distinct in the context of the contract, whereby the transfer of the goods or services is separately identifiable from other promises in the contract. Most of our revenue is derived from purchases under which we provide a specific product or service and, as a result, there is only one performance obligation. In the event that a contract includes multiple promised goods or services, such as an EDC contract which includes both engineering services and a resulting product shipment, the Company must apply judgment to determine whether promised goods or services are capable of being distinct in the context of the contract. In these cases, the Company considers whether the customer could, on its own, or together with other resources that are readily available from third parties, produce the physical product using only the output resulting from the Company’s completion of engineering services. If the customer cannot produce the physical product, then the promised goods or services are accounted for as a combined performance obligation.

3)Determine the transaction price

The transaction price is determined based on the consideration to which the Company will be entitled in exchange for transferring goods or services to the customer. To the extent the transaction price includes variable consideration, the Company estimates the amount of variable consideration that should be included in the transaction price utilizing either the expected value method or the most likely amount method depending on the nature of the variable consideration. Variable consideration is included in the transaction price if, in the Company’s judgment, it is probable that a significant future reversal of cumulative revenue under the contract will not occur.

| 4) | Allocate the transaction price to performance obligations in the contract

If the contract contains a single performance obligation, the entire transaction price is allocated to the single performance obligation. The Company determines standalone selling price based on the price at which the performance obligation is sold separately. If the standalone selling price is not observable through past transactions, the Company estimates the standalone selling price by taking into

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account available information such as market conditions as well as the cost of the goods or services and the Company’s normal margins for similar performance obligations.

| 5) | Recognize revenue when or as the Company satisfies a performance obligation

The Company satisfies performance obligations either over time or at a point in time. Revenue is recognized at the time the related performance obligation is satisfied by transferring a promised good or service to a customer. Product sales revenue is recognized point-in-time when the product is sold and shipped to the customer. Services revenues are recognized over time upon the completion of the identified performance obligations. Historically, the Company has also recognized revenue from EDC contracts over time using an input measure (e.g., costs incurred to date relative to total estimated costs at completion) to measure progress. Contract costs include material, components and third-party avionics purchased from suppliers, direct labor and overhead costs.

Bill-and-hold Arrangements

In certain situations, the Company recognizes revenue under bill-and-hold arrangements with its customers. Revenue for bill-and-hold arrangements is recognized when product control transfers to the customer, even though the customer does not have physical possession of the product. Control transfers when the bill-and-hold arrangement has been determined to have substantive reason, the product is identified as belonging to the customer, the product is ready for physical transfer to the customer, and the product cannot be used or directed to another customer.

Contract Estimates

Accounting for performance obligations in long-term contracts that are satisfied over time involves the use of various techniques to estimate progress towards satisfaction of the performance obligation. The Company typically measures progress based on costs incurred compared to estimated total contract costs. Contract cost estimates are based on various assumptions to project the outcome of future events that often span more than a single year. These assumptions include the amount of labor and labor costs; the quantity and cost of raw materials used in the completion of the performance obligation and the complexity of the work to be performed.

As a significant change in one or more of these estimates could affect the profitability of our contracts, we review and update our contract-related estimates regularly. We recognize adjustments in estimated profit on contracts under the cumulative catch-up method. Under this method, the impact of the adjustment on profit recorded to date is recognized in the period the adjustment is identified. Revenue and profit in future periods of contract performance is recognized using the adjusted estimate. If at any time the estimate of contract profitability indicates an anticipated loss on the contract, we recognize the total loss in the quarter in which it is identified.

The impact of adjustments in contract estimates on our operating earnings is typically reflected in consolidated revenues. There were no material contract estimate adjustments to our condensed consolidated financial statements for the three and six months ended March 31, 2026 and March 31, 2025, respectively.

Contract Balances

Contract assets consist of the right to consideration in exchange for product offerings that we have transferred to a customer under the contract. Contract liabilities primarily relate to consideration received in advance of performance under the contract. The following table reflects the Company’s contract assets and contract liabilities:

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​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ ​ ​ | ​ | ​ | ​ ​ ​ | ​
​ | ​ | Contract | ​ | Contract
​ | ​ | Assets | ​ | Liabilities
September 30, 2025 | ​ | $ | 5,320,353 | ​ | $ | 2,481,929
Amount transferred to receivables from contract assets | ​ | ​ | (4,772,270) | ​ | ​ | —
Contract asset additions | ​ | ​ | 1,107,724 | ​ | ​ | —
Performance obligations satisfied during the period that were included in the contract liabilities balance at the beginning of the period | ​ | ​ | — | ​ | ​ | (2,212,695)
Increases due to invoicing prior to satisfaction of performance obligations | ​ | ​ | — | ​ | ​ | 1,951,710
March 31, 2026 | ​ | $ | 1,655,807 | ​ | $ | 2,220,944
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Contract | ​ | Contract
​ | ​ | Assets | ​ | Liabilities
September 30, 2024 | ​ | $ | 1,680,060 | ​ | $ | 340,481
Amount transferred to receivables from contract assets | ​ |  | (754,432) | ​ | ​ | —
Contract asset additions | ​ |  | 843,745 | ​ | ​ | —
Performance obligations satisfied during the period that were included in the contract liabilities balance at the beginning of the period | ​ |  | — | ​ | ​ | (268,502)
Increases due to invoicing prior to satisfaction of performance obligations | ​ |  | — | ​ | ​ | 659,814
March 31, 2025 | ​ | $ | 1,769,373 | ​ | $ | 731,793

​

* Due to the fact that our fixed price contracts are treated as day-to-day contracts due to the inclusion of termination for convenience clauses, there are no remaining unsatisfied performance obligations at period end to disclose under ASC 606.

​

The balances for Accounts receivable were $13,188,080 and $12,956,476 for the fiscal periods ended March 31, 2026 and September 30, 2025, respectively.

​

The balances for Accounts receivable were $13,823,088 and $12,612,482 for the fiscal periods ended March 31, 2025 and September 30, 2024, respectively.

​

Lease Recognition

​

The Company accounts for leases in accordance with ASU 2016-02, Leases (Topic 842). At the inception of an arrangement, the Company determines whether the arrangement is or contains a lease based on the unique facts and circumstances present in the arrangement. Leases with a term greater than one year are recognized on the balance sheet as right-of-use assets and short-term and long-term lease liabilities, as applicable. The Company does not have any financing leases that are material.

​

Income Taxes

​

Income taxes are recorded in accordance with ASC Topic 740, “Income Taxes” (“ASC Topic 740”), which utilizes a balance sheet approach to provide for income taxes. Under this method, the Company recognizes deferred tax assets and liabilities for temporary differences between the financial reporting basis and the tax basis of the Company’s assets, liabilities and expected benefits of utilizing net operating losses (“NOL”) and tax credit carry-forwards. The impact on deferred taxes of changes in tax rates and laws, if any, are applied to the years during which temporary differences are expected to be settled and are reflected in the consolidated financial statements in the period of enactment. At the end of each interim reporting period, the Company prepares an estimate of the annual effective income tax rate and applies that annual effective income tax rate to ordinary year-to-date pre-tax income for the interim period. Specific tax items discrete to a particular quarter are recorded in income tax expense for that quarter. The estimated annual effective tax rate used in providing for income taxes on a year-to-date basis may change in subsequent periods.

​

Deferred tax assets are reduced by a valuation allowance if, based on the consideration of all available evidence, it is more likely than not that some portion of the deferred tax asset will not be realized. Significant weight is given to evidence that can be verified objectively, and significant management judgment is required in determining any valuation allowance recorded against net deferred tax assets. The Company evaluates deferred income taxes on a quarterly basis to determine if a valuation allowance is required by considering available evidence. Deferred tax assets are recognized when expected future taxable income is sufficient to allow the

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related tax benefits to reduce taxes that would otherwise be payable. The sources of taxable income that may be available to realize the benefit of deferred tax assets are future reversals of existing taxable temporary differences, future taxable income exclusive of reversing temporary differences and credit carryforwards, taxable income in carry-back years and tax planning strategies which are both prudent and feasible.

​

The accounting for uncertainty in income taxes requires a more likely than not threshold for financial statement recognition and measurement of tax positions taken or expected to be taken in a tax return. The Company records a liability for the difference between the (i) benefit recognized and measured for financial statement purposes and (ii) the tax position taken or expected to be taken on the Company’s tax return. To the extent that the Company’s assessment of such tax positions changes, the change in estimate is recorded in the period in which the determination is made. The Company has elected to record any interest or penalties associated with uncertain tax positions as income tax expense.

​

The Company files a consolidated U.S. federal income tax return. The Company prepares and files tax returns based on the interpretation of tax laws and regulations and records estimates based on these judgments and interpretations. In the normal course of business, the tax returns are subject to examination by various taxing authorities. Such examinations may result in future tax and interest assessments by these taxing authorities, and the Company records a liability when it is probable that there will be an assessment. The Company adjusts the estimates periodically as a result of ongoing examinations by and settlements with the various taxing authorities, and changes in tax laws, regulations and precedent. The consolidated tax provision of any given year includes adjustments to prior years’ income tax accruals that are considered appropriate and any related estimated interest. Management believes that it has made adequate accruals for income taxes. Differences between estimated and actual amounts determined upon ultimate resolution, individually or in the aggregate, are not expected to have a material effect on the Company’s consolidated financial position but could possibly be material to its consolidated results of operations or cash flow of any one period.

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Research and Development

​

Total research and development expense comprises both internally funded research and development (“R&D”), which is expensed in research and development in the consolidated statements of operations, and product development and design charges related to specific customer contracts. Engineering development expense consists primarily of payroll-related expenses of employees engaged in EDC projects, engineering related product materials and equipment, and subcontracting costs. R&D charges incurred for product design, product enhancements and future product development are expensed as incurred. Product development and design charges related to specific customer contracts are charged to cost of sales - Services based on the method of contract accounting (either percentage-of-completion or completed contract) applicable to such contracts.

Share-Based Compensation

The Company accounts for share-based compensation under ASC Topic 718, which requires the Company to measure the cost of employee or non-employee director services received in exchange for an award of equity instruments based on the grant-date fair value of the award using an option pricing model. The Company recognizes such cost over the period during which an employee or non-employee director is required to provide service in exchange for the award.

Accordingly, adoption of ASC Topic 718’s fair value method results in recording compensation costs under the Company’s stock-based compensation plans. Time-vested RSU’s are valued as of the closing price of the Company’s stock on date of grant. The Company determines the fair value of its stock option awards at the date of grant using the Black-Scholes option pricing model. The Company determines the fair value of its Market Stock Unit Awards (“MSUs”) and Market Stock Option Awards (“MSO”) using Monte Carlo Simulation Option pricing models and generally accepted valuation techniques, which require management to make assumptions and to apply judgment to determine the fair value of its awards. These assumptions and judgments include estimating future volatility of the Company’s stock price, expected dividend yield, future employee turnover rates, and future employee stock option exercise behaviors. Changes in these assumptions can materially affect fair value estimates. The Company does not believe that a reasonable likelihood exists that there will be a material change in future estimates or assumptions used to determine share-based compensation expense. However, if actual results are not consistent with the Company’s estimates or assumptions, the Company would adjust its estimates. Such adjustments could have a material impact on the Company’s financial position.

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Debt Issuance Costs

​

Debt issuance costs are capitalized as contra-liabilities and amortized as interest expense on a basis that approximates the effective interest method over the term for Initial Term Loan debt. Contra-liabilities are netted against and presented as a direct deduction from the carrying amount of the Initial Term Loan debt.

​

Revolving Facility and the Delayed Draw Term Loan debt issuance costs are capitalized as assets and amortized using straight-line amortization to interest expense over the terms of the respective debt. The capitalized assets related to the Revolving Facility and the Delayed Draw Term Loan are presented as Current Other Assets and Non-Current Other Assets on the Consolidated Balance Sheet.

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Warranty Reserves

​

The Company offers warranties on some products of various lengths. However, the standard warranty period is twenty-four months. At the time of shipment, the Company establishes a reserve for estimated costs of warranties based on its best estimate of the amounts necessary to settle future and existing claims using historical data on products sold as of the balance sheet date. The length of the warranty period, the product’s failure rates and the customer’s usage affect warranty cost. If actual warranty costs differ from the Company’s estimated amounts, future results of operations could be affected adversely. Warranty cost is recorded as cost of sales, and the reserve balance recorded as an accrued expense. While the Company maintains product quality programs and processes, its warranty obligation is affected by product failure rates and the related corrective costs. If actual product failure rates and/or corrective costs differ from the estimates, the Company revises the estimated warranty liability accordingly.

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Self-Insurance Reserves

​

Since January 1, 2014, the Company has self-insured a significant portion of its employee medical insurance. The Company maintains a stop-loss insurance policy that limits its losses both on a per employee basis and an aggregate basis. Liabilities associated with the risks that are retained by the Company are estimated based upon actuarial assumptions such as historical claims experience and demographic factors. The Company estimated the total medical claims incurred but not reported, and the Company believes that it has adequate reserves for these claims at September 30, 2025 and 2024. However, the actual value of such claims could be significantly affected if future occurrences and claims differ from these assumptions. At March 31, 2026 and September 30, 2025, the estimated liability for medical claims incurred but not reported was $103,000 and $153,000, respectively. The Company has recorded the deficit of funded premiums over estimated claims incurred but not reported of $103,000 as a current liability in the accompanying consolidated balance sheet.

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Treasury Stock

​

We account for treasury stock purchased under the cost method and include treasury stock as a component of shareholders’ equity. Treasury stock purchased with intent to retire (whether or not the retirement is actually accomplished) is charged to common stock.

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Concentrations

Major Customers and Products

In the three months ended March 31, 2026, four customers accounted for 20%, 16%, 5% and 4% of net sales, respectively.

In the six months ended March 31, 2026, four customers accounted for 19%, 10%, 10% and 7% of net sales, respectively.

In the three months ended March 31, 2025, five customers accounted for 48%, 9%, 5%, 5% and 5% of net sales, respectively.

In the six months ended March 31, 2025, five customers accounted for 44%, 7%, 6%, 5%, and 4% of net sales, respectively.

Major Suppliers

The Company buys several of its components from sole source suppliers. Although there are a limited number of suppliers of particular components, management believes other suppliers could provide similar components on comparable terms.

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For the three months ended March 31, 2026, the Company had two suppliers that were individually responsible for greater than 10% of the Company’s total inventory-related purchases.

For the six months ended March 31, 2026, the Company had two suppliers that were individually responsible for greater than 10% of the Company’s total inventory-related purchases.

For the three and six months ended March 31, 2025, the Company had one supplier that was individually responsible for greater than 10% of the Company’s total inventory related purchases.

Concentration of Credit Risk

Financial instruments that potentially subject the Company to concentration of credit risk consist principally of cash balances and accounts receivable. The Company invests its excess cash where preservation of principal is the major consideration. Cash balances are maintained with two major banks. Balances on deposit with certain money market accounts and operating accounts may exceed the Federal Deposit Insurance Corporation limits. The Company’s customer base consists principally of companies within the aviation industry. The Company requests advance payments and/or letters of credit from customers that it considers to be credit risks.

New Accounting Pronouncements

The Company considers the applicability and impact of all Accounting Standards Updates (ASUs) issued by the Financial Accounting Standards Board (FASB). ASUs not listed below were assessed and determined to be either not applicable or are expected to have minimal impact on the Company's Consolidated Financial Statements.

In November 2024, the FASB issued ASU No. 2024-03 (“ASU 2024-03”), Disaggregation of Income Statement Expenses. The guidance primarily will require enhanced disclosures about certain types of expenses. The amendments in ASU 2024-03 are effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027 and may be applied either on a prospective or retrospective basis. We are evaluating the impact of the standard on our disclosures.

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Taxes Disclosures, which requires greater disaggregation of income tax disclosures. The new standard requires additional information to be disclosed with respect to the income tax rate reconciliation and income taxes paid disaggregated by jurisdiction. This ASU should be applied prospectively for fiscal years beginning after December 15, 2024, with retrospective application permitted. The Company is currently evaluating the impacts of this guidance on the Company’s Consolidated Financial Statements.

Recently Adopted Accounting Pronouncements

In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which requires companies to enhance the disclosures about segment expenses. The new standard requires the disclosure of the Company’s Chief Operating Decision Maker (CODM), expanded incremental line-item disclosures of significant segment expenses used by the CODM for decision-making, and the inclusion of previous annual only segment disclosure requirements on a quarterly basis. For all public business entities, ASU 2023-07 was effective for annual periods beginning after December 31, 2023 and interim periods with fiscal years beginning after December 15, 2024; early adoption is permitted. The Company evaluated and adopted this guidance in the fiscal year ended September 30, 2025. The adoption of this guidance did not have a material impact on the Company’s Consolidated Financial Statements.

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2. Supplemental Balance Sheet Disclosures

Inventories

Inventories are stated at the lower of cost (first-in, first-out) or net realizable value, net of write-downs for excess and obsolete inventory and consist of the following:

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ ​ ​ | March 31, | ​ ​ ​ | September 30,
​ | ​ | 2026 | ​ | 2025
Raw materials | ​ | $ | 23,085,330 | ​ | $ | 22,445,837
Work-in-process | ​ |  | 4,092,998 | ​ |  | 2,295,587
Finished goods | ​ |  | 889,141 | ​ |  | 1,060,757
​ | ​ | $ | 28,067,469 | ​ | $ | 25,802,181

​

Prepaid expenses and other current assets

Prepaid expenses and other current assets consist of the following:

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ ​ ​ | March 31, | ​ ​ ​ | September 30,
​ | ​ | 2026 | ​ | 2025
Supplier deposits | ​ | ​ | 640,170 | ​ | ​ | 486,763
Prepaid insurance | ​ | ​ | 602,079 | ​ | ​ | 183,391
Prepaid income tax | ​ | ​ | 644,082 | ​ | ​ | —
Deferred engineering | ​ | ​ | 234,629 | ​ | ​ | —
Unamortized debt issuance costs | ​ | ​ | 147,527 | ​ | ​ | 147,527
Other | ​ |  | 1,272,886 | ​ |  | 574,717
​ | ​ | $ | 3,541,373 | ​ | $ | 1,392,398

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Intangible assets and Goodwill

​

The Company’s intangible assets other than goodwill are as follows:

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As of March 31, 2026
​ | ​ | Gross Carrying | ​ ​ ​ | Accumulated | ​ ​ ​ | Accumulated | ​ ​ ​ | Net Carrying
​ | ​ | Value |  | Impairment |  | Amortization |  | Value
License agreements (a) | ​ | $ | 21,290,000 | ​ | $ | — | ​ | $ | — | ​ | $ | 21,290,000
Customer relationships (a) | ​ |  | 21,934,327 | ​ |  | — | ​ |  | (3,326,047) | ​ |  | 18,608,280
Backlog (b) | ​ | ​ | 8,190,000 | ​ | ​ | — | ​ | ​ | (1,418,051) | ​ | ​ | 6,771,949
Trade name (c) | ​ | ​ | 260,000 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 260,000
Licensing and certification rights (d) | ​ |  | 696,506 | ​ |  | (44,400) | ​ |  | (638,285) | ​ |  | 13,821
Total | ​ | $ | 52,370,833 | ​ | $ | (44,400) | ​ | $ | (5,382,383) | ​ | $ | 46,944,050

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As of September 30, 2025
​ | ​ ​ ​ | Gross Carrying | ​ ​ ​ | Accumulated | ​ ​ ​ | Accumulated | ​ ​ ​ | Net Carrying
​ |  | Value |  | Impairment |  | Amortization |  | Value
License agreements (a) | ​ | $ | 9,790,000 | ​ | $ | — | ​ | $ | — | ​ | $ | 9,790,000
Customer relationships (a) | ​ |  | 12,604,327 | ​ |  | — | ​ |  | (2,705,533) | ​ |  | 9,898,794
Backlog (b) | ​ | ​ | 4,850,000 | ​ | ​ | — | ​ | ​ | (970,000) | ​ | ​ | 3,880,000
Licensing and certification rights (d) | ​ |  | 696,506 | ​ |  | (44,400) | ​ |  | (638,285) | ​ |  | 13,821
Total | ​ | $ | 27,940,833 | ​ | $ | (44,400) | ​ | $ | (4,313,818) | ​ | $ | 23,582,615

​

| (a) | The license agreements have an indefinite life and are not subject to amortization; the customer relationships have an estimated weighted average life of ten years.

​

| (b) | Backlog assets are amortized according to the timing of order fulfillment.

​

| (c) | The trade name is amortized over 15 years.

​

| (d) | The licensing and certification rights are amortized over a defined number of units.

​

Intangible asset amortization expense is amortized as a component of selling, general and administrative expense and was $438,814 and $480,407 for the three months ended March 31, 2026 and 2025, respectively.

​

Intangible asset amortization expense was $1,068,565 and $1,110,158 for the six months ended March 31, 2026 and 2025, respectively.

​

​

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The timing of future amortization expense is not determinable for the licensing and certification rights because they are amortized over a defined number of units. The expected future amortization expense related to the customer relationships, backlog and trade name as of March 31, 2026 is as follows:

​

​ | ​ | ​
​ | Amortization Expense
2026 (six months remaining) | $ | 3,399,086
2027 | ​ | 5,715,555
2028 | ​ | 3,284,876
2029 | ​ | 2,222,694
2030 | ​ | 2,194,360
Thereafter | ​ | 8,823,658
Total | $ | 25,640,229

​

Goodwill activity

​

​ | ​ | ​
​ | Goodwill
Balance at September 30, 2025 | $ | 6,703,104
Fiscal 2026 Activity: | ​ | ​
Business Combination - Honeywell Autopilot Agreement | ​ | 3,810,000
Business Combination - Honeywell Generators Agreement | ​ | 3,650,000
Business Combination - Other | ​ | 1,610,000
Balance at March 31, 2026 | $ | 15,773,104

​

Property and equipment

Property and equipment, net consists of the following:

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ ​ ​ | March 31, | ​ ​ ​ | September 30,
​ | ​ | 2026 | ​ | 2025
Computer equipment | ​ | $ | 3,443,526 | ​ | $ | 3,169,835
Corporate R&D airplane | ​ |  | 1,187,911 | ​ |  | -
Furniture and office equipment | ​ |  | 1,042,096 | ​ |  | 984,205
Buildings and improvements | ​ |  | 12,413,913 | ​ |  | 11,598,890
Equipment other | ​ |  | 16,358,147 | ​ |  | 15,958,271
Land | ​ |  | 1,021,245 | ​ |  | 1,021,245
​ | ​ |  | 35,466,838 | ​ |  | 32,732,446
Less accumulated depreciation and amortization | ​ |  | (14,744,461) | ​ |  | (13,927,910)
​ | ​ | $ | 20,722,377 | ​ | $ | 18,804,536

​

Depreciation and amortization related to property and equipment was $420,927 and $272,390 for the three months ended March 31, 2026 and 2025, respectively.

Depreciation and amortization related to property and equipment was $816,551 and $894,483 for the six months ended March 31, 2026 and 2025, respectively.

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Other assets

Other assets consist of the following:

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ ​ ​ | March 31, | ​ ​ ​ | September 30,
​ | ​ | 2026 | ​ | 2025
Unamortized debt issuance costs | ​ | $ | 486,233 | ​ | $ | 560,603
Other non-current assets | ​ |  | 184,600 | ​ |  | 157,863
​ | ​ | $ | 670,833 | ​ | $ | 718,466

​

Other non-current assets as of March 31, 2026 and September 30, 2025 consists primarily of deposits for medical claims required under the Company’s medical plan.

​

Accrued expenses

Accrued expenses consist of the following:

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | ​ | September 30,
​ | ​ | 2026 | ​ | ​ | 2025
Warranty | ​ | $ | 953,488 | ​ | $ | 730,498
Salary, benefits and payroll taxes |  | ​ | 1,139,108 | ​ | ​ | 1,234,246
Inventory in transit |  | ​ | — | ​ | ​ | 1,097,222
Income tax payable | ​ | ​ | — | ​ | ​ | 2,045,123
ERC related expenses | ​ | ​ | — | ​ | ​ | 378,846
Bonus accruals | ​ | ​ | 986,110 | ​ | ​ | 1,972,221
Other | ​ | ​ | 1,049,947 | ​ | ​ | 703,811
​ | ​ | $ | 4,128,653 | ​ | $ | 8,161,967

​

Warranty cost and accrual information for the three and six months ended March 31, 2026 is highlighted below:

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ ​ ​ | ​ | Three Months Ending | ​ | ​ | Six Months Ending | ​ ​ ​
​ | ​ | ​ | March 31, 2026 | ​ | ​ | March 31, 2026 | ​
Warranty accrual, beginning of period | ​ | $ | 861,486 | ​ | $ | 730,498 | ​
Accrued expense (Adjustment) | ​ |  | 188,000 | ​ |  | 466,000 | ​
Warranty cost | ​ |  | (95,998) | ​ |  | (243,010) | ​
Warranty accrual, end of period | ​ | $ | 953,488 | ​ | $ | 953,488 | ​

​

​

3. Acquisitions

Honeywell Autopilot Agreement

​

On March 27, 2026, the Company entered into the Honeywell Autopilot Agreement with Honeywell, pursuant to which Honeywell sold, assigned or licensed certain assets related to its general aviation autopilots and nav/com, multifunction display and transponder radios, granted exclusive and non-exclusive licenses to use certain Honeywell intellectual property related to its general aviation autopilots and nav/com, multifunction display and transponder radios to repair, overhaul, manufacture, sell, import, export and distribute certain products and granted certain other intellectual property rights to the Company for consideration of $22.0 million in cash.

​

The Company determined that the transaction met the definition of a business under ASC 805; therefore, the Company accounted for the transaction as a business combination and applied the acquisition method of accounting. The Company financed the Honeywell Autopilot Agreement with borrowings against the Company’s delayed draw term loan. Please see Note 9, “Loan Agreement” for more details.

​

​

​

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The allocation of the purchase price was based upon certain preliminary valuations and other analyses. The allocation of the purchase price has not been finalized as of the date of this filing due to the fact that while legal control has occurred, the Company has not yet received physical possession of the prepaid inventory, equipment and intellectual property, and thus these assets will be subject to settlement adjustments upon transfer, which is expected to occur during the transition period, as outlined in the Honeywell Autopilot Agreement. During the measurement period, there may be value ascribed to the fair market value of any inventory and equipment expected to be received which will reduce goodwill. As a result, the purchase price amount for the transaction and the allocation of the preliminary purchase consideration are preliminary estimates, which may be subject to change within the measurement period.

​

​

The allocation of the preliminary purchase consideration as of the acquisition date is as follows:

​

​ | ​ | ​
​ | Preliminary
​ | Purchase Price
​ | Allocation
Total consideration | $ | 22,000,000
​ | ​ | ​
Intangible assets (a) | ​ | 18,190,000
Goodwill (b) | ​ | 3,810,000
Net assets acquired | $ | 22,000,000

​

​

| (a) | Intangible assets consists of backlog ($1,420,000), customer relationships ($8,360,000), and license agreements ($8,410,000) related to the license rights to use certain Honeywell intellectual property and are recorded at estimated fair values. Backlog assets are amortized according to the timing of order fulfillment. The customer relationships are amortized over 10 years. The license agreements have an indefinite life and is not subject to amortization. The estimated fair value of these license agreements are based on a variation of the income valuation approach and are determined using the relief from royalty method. The estimated fair value of the backlog and customer relationships are based on a variation of the income valuation approach known as the multi-period excess earnings method. Refer to Note 2, “Supplemental Balance Sheet Disclosures” for further details.

​

| (b) | Goodwill represents the excess of the purchase consideration over the preliminary fair value of the net assets acquired. During the measurement period, there may be value ascribed to the fair market value of any inventory and equipment expected to be received which will reduce goodwill. The goodwill recognized is primarily attributable to the expected synergies from the Honeywell Autopilot Agreement. Goodwill resulting from the Honeywell Autopilot Agreement has been assigned to the Company’s one reporting unit and is fully deductible for U.S. income tax purposes.

​

Transition services agreement

​

Concurrent with the Honeywell Autopilot Agreement, the Company entered into a transition services agreement with Honeywell, at no additional cost, to receive certain transitional services and technical support during the transition service period.

​

Honeywell Generators Agreement

​

On March 28, 2026, the Company entered into the Honeywell Generators Agreement with Honeywell, pursuant to which Honeywell sold, assigned or licensed certain assets related to its electronic generator and generator control unit for the F-15 and 767 tanker/freight platforms, including a sale of certain inventory, equipment and customer-related documents; an assignment of certain contracts; and a grant of exclusive and non-exclusive licenses to use certain Honeywell intellectual property related to its electronic generator and generator control unit for the F-15 and 767 tanker/freight platforms to repair, overhaul, manufacture, sell, import, export and distribute certain products to the Company for consideration of $8.0 million in cash.

​

The Company determined that the transaction met the definition of a business under ASC 805; therefore, the Company accounted for the transaction as a business combination and applied the acquisition method of accounting. The Company financed the Honeywell Generators Agreement with borrowings against the Company’s delayed draw term loan. Please see Note 9, “Loan Agreement” for more details.

​

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The allocation of the purchase price was based upon certain preliminary valuations and other analyses. The allocation of the purchase price has not been finalized as of the date of this filing due to the fact that while legal control has occurred, the Company has not yet received physical possession of the prepaid inventory, equipment and intellectual property, and thus these assets will be subject to settlement adjustments upon transfer, which is expected to occur during the transition period, as outlined in the Honeywell Generators Agreement. During the measurement period, there may be value ascribed to the fair market value of any inventory and equipment expected to be received which will reduce goodwill. As a result, the purchase price amount for the transaction and the allocation of the preliminary purchase consideration are preliminary estimates, which may be subject to change within the measurement period.

​

​

The allocation of the preliminary purchase consideration as of the acquisition date is as follows:

​

​ | ​ | ​
​ | Preliminary
​ | Purchase Price
​ | Allocation
Total consideration | $ | 8,000,000
​ | ​ | ​
Intangible assets (a) | ​ | 4,350,000
Goodwill (b) | ​ | 3,650,000
Net assets acquired | $ | 8,000,000

​

| (a) | Intangible assets consists of backlog ($1,890,000), customer relationships ($800,000), and license agreements ($1,660,000) related to the license rights to use certain Honeywell intellectual property and are recorded at estimated fair values. Backlog assets are amortized according to the timing of order fulfillment. The customer relationships are amortized over 8 years. The license agreements have an indefinite life and is not subject to amortization. The estimated fair value of these license agreements are based on a variation of the income valuation approach and are determined using the relief from royalty method. The estimated fair value of the backlog and customer relationships are based on a variation of the income valuation approach known as the multi-period excess earnings method. Refer to Note 2, “Supplemental Balance Sheet Disclosures” for further details.

​

| (b) | Goodwill represents the excess of the purchase consideration over the preliminary fair value of the net assets acquired. During the measurement period, there may be value ascribed to the fair market value of any inventory and equipment expected to be received which will reduce goodwill. The goodwill recognized is primarily attributable to the expected synergies from the Honeywell Generators Agreement. Goodwill resulting from the Honeywell Generators Agreement has been assigned to the Company’s one reporting unit and is fully deductible for U.S. income tax purposes.

​

Transition services agreement

​

Concurrent with the Honeywell Generators Agreement, the Company entered into a transition services agreement with Honeywell, at no additional cost, to receive certain transitional services and technical support during the transition service period.

​

Other

​

In February 2026, the Company acquired the S-TEC® Model 3100 general aviation fixed wing autopilot product line from Moog (NYSE: MOG.A) for a total purchase consideration of $3.5 million in cash. The purchase price of this acquisition was paid in cash.

​

The Company determined that the transaction met the definition of a business under ASC 805; therefore, the Company accounted for the transaction as a business combination and applied the acquisition method of accounting

​

The allocation of the purchase price was based upon certain preliminary valuations and other analyses. The allocation of the purchase price has not been finalized as of the date of this filing due to the fact that while transfer of legal control has occurred, the Company has not yet received physical possession of the intellectual property, and thus these assets will be subject to settlement adjustments upon transfer, which is expected to occur later this year. As a result, the allocation of the preliminary purchase consideration are preliminary estimates, which may be subject to change within the measurement period.

​

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The allocation of the preliminary purchase consideration as of the acquisition date is as follows:

​

​ | ​ | ​
​ | Preliminary
​ | Purchase Price
​ | Allocation
Total consideration | $ | 3,500,000
​ | ​ | ​
Intangible assets (a) | ​ | 1,890,000
Goodwill (b) | ​ | 3,810,000
Net assets acquired | $ | 1,610,000

​

| (a) | Intangible assets consists of backlog ($30,000), customer relationships ($170,000), trade name ($260,000) and license agreements ($1,430,000) related to the license rights to use certain intellectual property and are recorded at estimated fair values. Backlog assets are amortized according to the timing of order fulfillment. The customer relationships are amortized over 3 years. The trade name is amortized over 15 years. The license agreements have an indefinite life and is not subject to amortization. The estimated fair value of these license agreements and trade name are based on a variation of the income valuation approach and are determined using the relief from royalty method. The estimated fair value of the backlog and customer relationships are based on a variation of the income valuation approach known as the multi-period excess earnings method. Refer to Note 2, “Supplemental Balance Sheet Disclosures” for further details.

​

| (b) | Goodwill represents the excess of the purchase consideration over the preliminary fair value of the net assets acquired. During the measurement period, there may be value ascribed to the fair market value of any equipment expected to be received which will reduce goodwill. The goodwill recognized is primarily attributable to the expected synergies from the Moog S-TEC® Agreement. Goodwill resulting from the Moog S-TEC® Agreement has been assigned to the Company’s one reporting unit and is fully deductible for U.S. income tax purposes.

​

Transition services agreement

​

Concurrent with the Moog S-TEC® Agreement, the Company entered into a transition services agreement with Moog, at no additional cost, to receive certain transitional services and technical support during the transition service period.

​

Acquisition and related costs

​

For the three and six months ended March 31, 2026, the Company incurred acquisition costs of approximately $0.7 million which were expensed as incurred and included in selling, general and administrative expenses in the consolidated statements of operations.

​

Unaudited actual and pro forma information

​

Since the acquisition date of the transactions, there were insignificant amounts of revenues and net income related to the acquired businesses in the consolidated statements of operations.

​

The following unaudited pro forma summary presents consolidated information of the Company, including the acquisitions, as if the transaction had occurred on October 1, 2024:

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six Months Ended March 31, | ​ | Six Months Ended March 31,
​ | ​ ​ ​ | 2026 | ​ | 2025
Net sales | ​ | $ | 50,230,657 | ​ | $ | 42,160,151
Net income | ​ | $ | 8,849,965 | ​ | $ | 6,218,705

​

These pro forma results are for illustrative purposes and are not indicative of the actual results of operations that would have been achieved, nor are they indicative of future results of operations. The unaudited pro forma information for all periods presented was adjusted to give effect to pro forma events that are directly attributable to the transaction and are factually supportable. The adjustments are based on information available to the Company currently. Accordingly, the adjustments are subject to change, and the

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impact of such changes may be material. The unaudited pro forma results do not include any incremental cost savings that may result from the integration.

​

4. Income Taxes

The Company will continue to assess all available evidence during future periods to evaluate any changes to the realization of its deferred tax assets. If the Company were to determine that it would be able to realize additional state deferred tax assets in the future, it would make an adjustment to the valuation allowance which would reduce the provision for income taxes.

On July 4, 2025, the One Big Beautiful Bill Act (OBBB) was signed into law, which includes a broad range of tax reform provisions that may affect the Company's financial results. The OBBB allows an elective deduction for domestic research and development, and a reinstatement of elective 100% first-year bonus depreciation, among other provisions. The Company is currently evaluating the impact of these provisions and thus far the impact to the Company’s effective tax rate in fiscal year 2025 and forward has not been material.

As a result of the 2017 Tax Cuts and Jobs Act, the Company must amortize amounts paid or incurred for specified research and development expenditures, including software development expenses, ratably over 60 months, beginning at the mid-point of the tax year in which the expenditures are paid or incurred.

The effective tax rate for the three months ended March 31, 2026 was 22.6% and differs from the statutory tax rate primarily due to the effect of state income taxes, tax credits, temporary and permanent tax differences related to stock-based compensation and certain non-deductible expenses.

The effective tax rate for the six months ended March 31, 2026 was 27.3% and differs from the statutory tax rate primarily due to the effect of state income taxes, tax credits, temporary and permanent tax differences related to stock-based compensation and certain non-deductible expenses.

The effective tax rate for the three months ended March 31, 2025 was 19.2% and differs from the statutory tax rate primarily due to the effect of state income taxes, tax credits and certain non-deductible expenses.

The effective tax rate for the six months ended March 31, 2025 was 19.3% and differs from the statutory tax rate primarily due to the effect of state income taxes, tax credits and certain non-deductible expenses.

5. Shareholders’ Equity and Share-Based Payments

At March 31, 2026, the Company’s Amended and Restated Articles of Incorporation provides the Company authority to issue 75,000,000 shares of common stock and 10,000,000 shares of preferred stock.

Share-Based Compensation

The Company accounts for share-based compensation under the provisions of ASC Topic 718, “Compensation – Stock Compensation,” by using the fair value method for expensing stock options, performance-based equity awards and stock awards.

Total share-based compensation expense was approximately $496,294 and $405,042 for the three months ended March 31, 2026 and 2025, respectively. Total share-based compensation expense was approximately $1,412,218 and $801,703 for the six months ended March 31, 2026 and 2025, respectively. Compensation expense related to share-based awards is recorded as a component of cost of sales, research and development expenses and selling, general and administrative expenses.

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The following tables show share-based compensation expense by line item within our Consolidated Statement of Operations:

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31,
​ | ​ ​ ​ | 2026 | ​ | 2025
Cost of sales | ​ | $ | 18,638 | ​ | $ | 18,261
Research and development | ​ | ​ | 28,340 | ​ | ​ | 20,722
Selling, general and administrative | ​ | ​ | 449,316 | ​ | ​ | 366,059
Total | ​ | $ | 496,294 | ​ | $ | 405,042

​

​

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six Months Ended March 31,
​ | ​ ​ ​ | 2026 | ​ | 2025
Cost of sales | ​ | $ | 56,180 | ​ | $ | 40,260
Research and development | ​ | ​ | 82,493 | ​ | ​ | 45,685
Selling, general and administrative | ​ | ​ | 1,273,545 | ​ | ​ | 715,758
Total | ​ | $ | 1,412,218 | ​ | $ | 801,703

​

As of March 31, 2026, unrecognized compensation expense of approximately $3,821,832, net of forfeitures, related to non-vested RSU’s, stock options and market based investment instruments under the 2019 Plan, will be recognized in future periods.

As of March 31, 2026, there were 262,264 unvested restricted stock units, 412,085 unvested non-qualified stock options and 145,753 unvested market based instruments outstanding under the 2019 Plan.

Amended and Restated 2019 Stock-Based Incentive Compensation Plan

The Company’s 2019 Stock-Based Incentive Compensation Plan (as amended, the “2019 Plan”) was approved by the Company’s shareholders at the Company’s Annual Meeting of Shareholders held on April 2, 2019. The 2019 Plan authorizes the grant of stock appreciation rights, restricted stock, options, performance-based equity awards, and other equity-based awards. Options granted under the 2019 Plan may be either “incentive stock options” as defined in Section 422 of the U.S. Internal Revenue Code of 1986, as amended (the “Code”), or non-qualified stock options, as determined by the Compensation Committee.

Subject to an adjustment necessary upon a stock dividend, recapitalization, forward split or reverse split, reorganization, merger, consolidation, spin-off, combination, repurchase or share exchange, extraordinary or unusual cash distribution, or similar corporate transaction or event, the maximum number of shares of common stock available for awards under the 2019 Plan is 750,000, plus 139,691 shares of common stock that were authorized but unissued under the Company’s 2009 Stock-Based Incentive Compensation Plan as of April 2, 2019, the effective date of the 2019 Plan, all of which may be issued pursuant to awards of incentive stock options. On April 18, 2024, the Company amended the 2019 Plan to include an additional 1,950,000 authorized shares available for issuance. As of March 31, 2026, there were 1,188,674 shares of common stock available for awards under the 2019 Plan.

If any award is forfeited, terminates or otherwise is settled for any reason without an actual distribution of shares to the participant, the related shares of common stock subject to such award will again be available for future grant. Any shares tendered by a participant in payment of the exercise price of an option or the tax liability with respect to an award (including, in any case, shares withheld from any such award) will not be available for future grant under the 2019 Plan. If there is any change in the Company’s corporate capitalization, the Compensation Committee must proportionately and equitably adjust the number and kind of shares of common stock which may be issued in connection with future awards, the number and kind of shares of common stock covered by awards then outstanding under the 2019 Plan, the aggregate number and kind of shares of common stock available under the 2019 Plan, any applicable individual limits on the number of shares of common stock available for awards under the 2019 Plan, the exercise or grant price of any award, or if deemed appropriate, make provision for a cash payment with respect to any outstanding award. In addition, the Compensation Committee may make adjustments in the terms and conditions of any awards, including any performance goals, in recognition of unusual or non-recurring events affecting the Company or any subsidiary, or in response to changes in applicable laws, regulations, or accounting principles. New shares are typically issued upon option exercise, MSO exercise, MSU vesting or RSU vesting.

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The 2019 Plan will terminate on April 2, 2029, unless earlier terminated by the Company’s Board of Directors (the “Board”). Termination will not affect awards outstanding at the time of termination. The Board may amend, alter, suspend, discontinue, or terminate the 2019 Plan without shareholder approval, provided that shareholder approval is required for any amendment which (i) would increase the number of shares subject to the 2019 Plan; (ii) would decrease the price at which awards may be granted; or (iii) would require shareholder approval by law, regulation, or the rules of any stock exchange or automated quotation system.

Restricted Stock Units and Stock Options

On February 17, 2026, the Board authorized grants of 39,763 in RSUs to key employees under the terms and conditions of the 2019 Plan as part of the Company’s initiatives to align employee compensation with Total Shareholder Return. The RSUs vest 50% on the one-year anniversary from date of grant and 50% on the twenty second month from date of grant, subject to the terms of the 2019 Plan.

On February 18, 2025, the Board authorized grants of 71,754 in RSUs to key employees under the terms and conditions of the 2019 Plan as part of the Company’s initiatives to align employee compensation with Total Shareholder Return. The RSUs vest 50% on the one-year anniversary from date of grant and 50% on the twenty second month from date of grant, subject to the terms of the 2019 Plan.

During the fiscal years ended September 30, 2026 and September 30, 2025, the Board approved grants of RSUs to the non-employee directors on the Board as compensation for their services. Under the terms of the awards, the RSUs will vest on the first anniversary of the grant date. At the time of vesting, the RSUs will be settled in shares of the Company’s common stock at a rate of one share of stock for each unit, provided that, if a director resigns from the Board prior to the vesting date, such director shall only receive a pro rata portion of such award for time served.

During the fiscal year ended September 30, 2026, and September 30, 2025, the Board approved grants of RSUs to both the Chief Executive Officer and the Chief Financial Officer that vest 25% after one year with the remainder vesting quarterly over a three-year period.

During the fiscal year ended September 30, 2026, the Board approved grants of non-qualified stock options to both the Chief Executive Officer and the Chief Financial Officer that vest 25% after one year with the remainder vesting quarterly over a three-year period.

The compensation expense related to stock options, and restricted stock awards issued to employees under the 2019 Plan was $271,709 and $207,126 for the three months ended March 31, 2026 and 2025, respectively. The compensation expense related to stock options, and restricted stock awards issued to employees under the 2019 Plan was $574,249 and $413,651 for the six months ended March 31, 2026 and 2025, respectively.

The compensation expense under the 2019 Plan related to restricted stock awards issued to non-employee members of the Board was $108,294 and $71,438 for the three months ended March 31, 2026 and 2025, respectively. The compensation expense under the 2019 Plan related to restricted stock awards issued to non-employee members of the Board was $227,689 and $144,464 for the six months ended March 31, 2026 and 2025, respectively.

As of March 31, 2026, unrecognized compensation expense of approximately $2,261,940, net of forfeitures, related to non-vested restricted stock under the 2019 Plan, will be recognized in future periods.

As of March 31, 2026, unrecognized compensation expense of approximately $850,853, net of forfeitures, related to non-vested stock options under the 2019 Plan, will be recognized in future periods.

Market-Based Restricted Stock Units

On February 18, 2026, in a continuing effort to more closely correlate executive compensation with the Company’s Total Shareholder Return, the Board approved a grant of 45,455 MSUs to the Company’s Chief Executive Officer and 21,307 MSUs to the Company’s Chief Financial Officer under the terms and conditions of the 2019 Plan. The MSUs are restricted stock units containing vesting terms conditional upon the attainment of both 1) continued service to vesting and 2) stock price appreciation targets indexed against the Company’s stock price performance during a specified measurement period. Under the terms of the 2019 Plan, no MSUs are eligible

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for vesting prior to the first anniversary of the date of grant of the award, with the exception of accelerated vesting permitted under certain conditions subject to the plan provisions. Subject to the terms of the 2019 Plan, under the terms of the grant, 1/3rd of the MSUs will vest on each of the first, second and third anniversaries of the date of grant (each, a “Time Vesting Date”), provided that no MSUs will vest until and unless the shares of the Company’s common stock have traded at a price equal to or greater than twenty five dollars ($25.00) per share for an average of sixty (60) trading days (the “Stock Price Threshold”). If a MSU would have vested upon a Time Vesting Date, but the Stock Price Threshold was not achieved prior to such Time Vesting Date, the MSU will subsequently vest upon achievement of the Stock Price Threshold.

Any MSUs that have not vested on or before the third anniversary of the grant date are immediately forfeited. Compensation expense for MSUs is recognized on a straight-line basis over the requisite service. Forfeitures are recognized when incurred.

With respect to each MSU that becomes vested in accordance with the terms of the award agreement, the Grantee will be entitled to receive one share of common stock upon the settlement of the MSUs.

The Company estimated both the grant-date fair value of the MSUs and the derived vesting periods using a Monte Carlo simulation with the following input assumptions:

​

​ | ​
Grant Date | 2/18/2026
Grant Date Stock Price | $ 19.83
Expected Dividend Rate | 0%
Expected Volatility | 59%
Weighted average risk-free interest rate | 3.72%
Contractual Term | 3 years

​

Utilizing Monte Carlo simulation, the MSUs grant date fair value was estimated to be $587,500 with a $8.80 grant date fair value per award and the derived vesting periods were estimated to be 1.5 years.

During the quarter ended December 31, 2024, to better align executive compensation with the Company’s Total Shareholder Return, the Board approved a special one-time grant of 201,000 MSUs to the Company’s Chief Executive Officer under the terms and conditions of the 2019 Plan. The MSUs are restricted stock units containing vesting terms conditional upon the attainment of both 1) continued service to vesting and 2) stock price appreciation targets indexed against the Company’s actual stock price performance over a specified measurement period. Under the terms of the 2019 Plan, no MSUs are eligible for vesting prior to the first anniversary of the date of grant of the award, with the exception of accelerated vesting permitted under certain conditions subject to the plan provisions. Subject to the terms of the 2019 Plan, under the terms of the grant, the MSU will vest as follows:

| 1) | an initial one-third (1/3rd) of the MSUs shall vest on the first trading date after the shares of the Company’s common stock have traded at a price equal to or greater than ten dollars ($10.00) per share for twenty (20) consecutive trading days or as provided in the provisions of the second succeeding paragraph below;

| 2) | an additional one-third (1/3rd) of the MSUs shall vest on the first trading date after shares of the Company’s common stock have traded at a price equal to or greater than twelve dollars ($12.00) per share for twenty (20) consecutive trading days; and

| 3) | the remaining MSUs shall vest on the first trading date after the shares of the Company’s common stock have traded at a price equal to or greater than fourteen dollars ($14.00) per share for twenty (20) consecutive trading days.

Additionally, if the tranche of MSUs subject to vesting pursuant to (1) above does not vest on or before November 20, 2027, then, with respect to such MSUs, the target trading price for the Company’s common stock will be increased to twelve dollars ($12.00) per share, such that the MSUs subject to (1) above will vest on the first trading date after shares of the Company’s common stock have traded at a price equal to or greater than twelve dollars ($12.00) per share for twenty (20) consecutive trading days.

Any MSUs that have not vested on or before the fourth anniversary of the grant date are immediately forfeited. Compensation expense for MSUs is recognized on a straight-line basis over the requisite service period for each separately vesting portion of the award as if the award was, in-substance, multiple awards using the graded vesting attribution method. Forfeitures are recognized when incurred.

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With respect to each MSU that becomes vested in accordance with the terms of the award agreement, the Grantee will be entitled to receive one share of common stock upon the settlement of the MSUs.

The Company estimated both the grant-date fair value of the MSUs and the derived vesting periods using a Monte Carlo simulation with the following input assumptions:

​

​ | ​
Number of MSUs Granted | 201,000
Grant Date | 11/20/24
Grant Date Stock Price | $ 7.72
Expected Dividend Rate | 0%
Expected Volatility | 48%
Weighted average risk-free interest rate | 4.27%
Contractual Term | 4 years

​

Utilizing Monte Carlo simulation, the MSUs grant date fair value was estimated to be $1,109,340 with a $5.52 weighted average grant date fair value per award and the derived vesting periods were estimated to be between 1.2 years and 1.7 years.

On each of February 13, 2025, July 10, 2025 and August 8, 2025, the market performance condition for the first, second and third tranches of 67,000 units of MSUs granted November 20, 2024 to the Company’s Chief Executive Officer were met.

On November 20, 2025, the service condition for all 201,000 units of MSUs granted November 20, 2024 to the Company’s Chief Executive Officer was met. Consequently, on November 20, 2025, all 201,000 MSUs vested according to the terms of the 2019 Plan. The unvested compensation expense of $425,157 as of the one-year anniversary date of grant was immediately expensed and recorded as compensation expense for the three months ended December 31, 2025. Of the 201,000 vested MSUs, 87,917 MSUs were withheld by the Company to cover the recipient’s tax obligations resulting in a net settlement of 113,083 MSU’s converting into Common Stock.

For the three months ended March 31, 2026 and 2025, the Company recognized $48,958 and $112,834, respectively, of compensation expense related to MSU awards.

For the six months ended March 31, 2026 and 2025, the Company recognized $474,116 and $229,942, respectively, of compensation expense related to MSU awards.

Time Based Stock Options with market-based exercisability conditions

During the three months ended March 31, 2025, in a continuing effort to more closely correlate executive compensation with the Company’s Total Shareholder Return, the Board approved a grant of 72,062 MSOs to the Company’s Chief Executive Officer and 33,259 MSOs to the Company’s Chief Financial Officer under the terms and conditions of the 2019 Plan.

The MSOs are similar to traditional time vested stock options and vest over four years, with 25% vesting on the first anniversary of the grant date, or February 19, 2026, and the remaining shares vesting quarterly at 6.25% on the last business day of May, August, November and February of calendar years two, three and four from the date of grant. However, the MSOs only become exercisable if the Company's share price reaches or exceeds the date of grant closing stock price of $8.59 plus a targeted market threshold of 15%, or $9.88 for 20 consecutive trading days at any time during the four-year vesting period. Once this market threshold is met, the vested shares can be exercised according to the vesting schedule and the terms and conditions set forth in the 2019 Plan.

On June 16, 2025, the Company’s closing share price exceeded the $9.88 MSOs targeted market threshold condition for 20 consecutive trading days for the MSOs granted February 18, 2025, thus meeting the market condition for exercisability subject to the vesting schedule and terms and conditions set for in the 2019 Plan. During the three and six months ended March 31, 2026, 26,330 MSOs vested and no MSOs were forfeited.

No MSOs are eligible for vesting or exercise prior to the first anniversary of the date of grant of the award, with the exception of accelerated vesting permitted under certain conditions subject to the plan provisions.

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With respect to each MSO that becomes exercised in accordance with the terms of the award agreement, the Grantee will be entitled to receive one share of common stock upon the settlement of the MSOs.

Compensation expense for MSOs is recognized on a straight-line basis over the requisite service period for each separately vesting portion of the award as if the award was, in-substance, multiple awards using the graded vesting attribution method. Forfeitures are recognized when incurred.

The Company estimated the grant-date fair value of the MSOs awards using a Monte Carlo simulation with the following input assumptions:

​

​ | ​
Number of MSOs granted | 105,321
Grant Date | 02/18/25
Grant Date Stock Price | $ 8.27
Expected Dividend Rate | 0%
Expected Volatility | 47%
Weighted average risk-free interest rate | 4.29%
Exercise price | $ 8.59
Contractual Term | 10 years

​

Utilizing Monte Carlo simulation, the aggregate MSOs grant date fair value was estimated to be $474,998 with a $4.51 weighted average grant date fair value per option and vesting periods were estimated to be between 1 year and 4 years with a 10 year contractual term.

For the three months ended March 31, 2026 and 2025, the Company recognized $67,334 and $13,646, respectively, of compensation expense related to the MSO awards.

For the six months ended March 31, 2026 and 2025, the Company recognized $136,165 and $13,646, respectively, of compensation expense related to the MSO awards.

As of March 31, 2026, unrecognized compensation expense of $170,499 associated with non-vested MSOs will be recognized in future periods under the 2019 Plan.

​

​

6. Earnings Per Share

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31, | ​ | Six Months Ended March 31, | ​
​ | ​ ​ ​ | 2026 | ​ ​ ​ | 2025 | ​ ​ ​ | 2026 | ​ ​ ​ | 2025 | ​ ​ ​
Numerator: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income | ​ | $ | 3,434,092 | ​ | $ | 5,336,342 | ​ | $ | 7,493,155 | ​ | $ | 6,072,534 | ​
Denominator: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic weighted average shares | ​ |  | 17,801,685 | ​ |  | 17,548,844 | ​ |  | 17,747,927 | ​ |  | 17,531,328 | ​
Dilutive effect of share-based awards | ​ |  | 500,598 | ​ |  | 95,150 | ​ |  | 434,965 | ​ |  | 82,358 | ​
Diluted weighted average shares | ​ |  | 18,302,283 | ​ |  | 17,643,994 | ​ |  | 18,182,892 | ​ |  | 17,613,686 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income per common share: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic | ​ | $ | 0.19 | ​ | $ | 0.30 | ​ | $ | 0.42 | ​ | $ | 0.35 | ​
Diluted | ​ | $ | 0.19 | ​ | $ | 0.30 | ​ | $ | 0.41 | ​ | $ | 0.34 | ​

​

Net income per share is calculated pursuant to ASC Topic 260, “Earnings per Share.” Basic EPS excludes potentially dilutive securities and is computed by dividing net income by the weighted average number of common shares outstanding for the period. Diluted EPS is computed assuming the conversion, or exercise of all dilutive securities such as employee stock options, MSUs and RSUs.

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The number of incremental shares from the assumed exercise of time vested stock options, MSOs, and RSUs is calculated by using the treasury stock method. The number of incremental shares from the assumed vesting of MSUs is calculated using the “if-converted” method.

As of March 31, 2026 and 2025, 31,897 and 0 weighted average outstanding MSUs were included in the three months ended March 31, 2026 and 2025 weighted-average diluted shares calculation, respectively, using the if converted method. As of March 31, 2026 and 2025, 125,188 and 0 weighted average outstanding MSUs were included in the six months ended March 31, 2026 and 2025 weighted-average diluted shares calculation, respectively, using the if converted method.

As of March 31, 2026 and 2025, there were 412,085 and 433,655 options to purchase common stock outstanding, respectively, and 66,762 and 201,000 MSUs subject to vesting outstanding, respectively.

As of March 31, 2026 and 2025, there were 262,264 and 194,914 shares of restricted stock units subject to vesting outstanding, respectively.

The weighted average outstanding diluted shares calculation excludes time vested options and MSOs with an exercise price that exceeds the average market price of shares during the period. Additionally, the weighted-average diluted shares calculation excludes RSUs that are deemed anti-dilutive when applying the treasury stock method.

For the three months ended March 31, 2026 and 2025, respectively, 24,114 and 136,613 diluted weighted-average shares outstanding were excluded from the computation of diluted EPS because the effect would be anti-dilutive.

For the six months ended March 31, 2026 and 2025, respectively, 12,057 and 249,113 diluted weighted-average shares outstanding were excluded from the computation of diluted EPS because the effect would be anti-dilutive.

7. Commitments and Contingencies

Purchase Obligations

A “purchase obligation” is defined as an agreement to purchase goods or services that is enforceable and legally binding on the Company and that specifies all significant terms, including fixed or minimum quantities to be purchased, fixed, minimum or variable price provisions, and the approximate timing of the transaction. These amounts primarily comprise open purchase order commitments entered in the ordinary course of business with vendors and subcontractors pertaining to fulfillment of the Company’s current order backlog. The purchase obligations on open purchase orders were $33.6 million as of March 31, 2026.

Product Liability

The Company has product liability insurance of $50,000,000. The Company has not experienced any material product liability claims.

Legal Proceedings

In the ordinary course of business, the Company is at times subject to various legal proceedings and claims. The Company does not believe any such matters that are currently pending will, individually or in aggregate, have a material effect on the results of operations or financial position.

​

8. Related Party Transactions

On October 18, 2024, the Company entered into a consulting agreement with Peduzzi Associates, ltd. (“PAL”), an entity in which board member Maj. General Dean serves as President. PAL provides consulting services in support of the Company’s business development growth into the DoD. The term of the agreement is for one year and in consideration for services the Company will pay PAL a retainer of $9,500 per month. This retainer was subsequently increased to $10,000 per month in October 2025. For the three months ended March 31, 2026 and 2025, the Company paid PAL $30,000 and $28,500, respectively.

For the six months ended March 31, 2026 and 2025, the Company paid PAL $60,000 and $57,000, respectively.

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9. Loan Agreement

On September 30, 2024, in connection with the July 2024 Honeywell Asset Acquisition and the September 2024 Honeywell Agreement, the Company entered into the Loan 2024 Amendment with PNC, which amended certain terms of the Loan Agreement to increase the line of credit with PNC. Concurrently with the Loan 2024 Amendment, the Company entered into (i) the “A&R Revolving Line of Credit Note and (ii) the A&R Rider.

The A&R Revolving Line of Credit Note provided for a senior secured revolving line of credit in an aggregate principal amount of $35 million, with an expiration date of December 19, 2028 (the “Revolving Line of Credit”). The interest rate applicable to loans outstanding under the Revolving Line of Credit was a rate per annum equal to the sum of (A) Daily SOFR (as defined in the A&R Revolving Line of Credit Note) plus (B) an unadjusted spread of the Applicable SOFR Margin plus (C) a SOFR adjustment of ten basis points. The Applicable SOFR Margin ranges from 1.5% to 2.5% depending on the Company’s funded debt to EBITDA ratio as defined in the A&R Revolving Line of Credit Note. The A&R Rider provided for how PNC will make advances to the Company under the A&R Revolving Line of Credit.

On July 18th, 2025, the outstanding balance drawn on the A&R Revolving Line of Credit of $25,342,529 was fully paid.

On July 18, 2025, Innovative Solutions and Support, Inc. (the “Company”), its wholly-owned subsidiary Innovative Solutions and Support, LLC (“Borrower”) and certain domestic subsidiaries entered into a Credit Agreement (the “2025 Credit Agreement”) with J.P. Morgan Chase Bank, N.A. (the “Bank”) and the other lender parties thereto, which Credit Agreement provides for the Bank to extend to the Borrower credit facilities in an aggregate principal amount of up to $100.0 million (the “New Credit Facilities”), consisting of the following:

1)a USD $25,000,000 initial term loan facility (the “Initial Term Loan”);

2)a USD $30,000,000 revolving credit facility (the “Revolving Facility”); and

3)a USD $45,000,000 delayed draw term loan facility (the “Delayed Draw Term Loan”).

The New Credit Facilities replaced the Company’s existing $35 million Amended and Restated Revolving Line of Credit Note in favor of PNC. The New Credit Facilities provide expanded liquidity and improved flexibility, better enabling the Company to execute on its long-term growth strategy and capital allocation priorities, consistent with the Company’s focus on driving long-term value creation for its shareholders.

Loans under the New Credit Facilities bear interest at the Borrower's option at either:

(i)the Alternate Base Rate plus an applicable margin, or

(ii)the Adjusted Term Secured Overnight Financing Rate (“SOFR”) plus an applicable margin.

The Alternate Base Rate is defined as the highest of (a) the Prime Rate, (b) the Federal Reserve Bank of New York rate for overnight funds plus 0.50%, and (c) the Adjusted Term SOFR Rate for a one-month period plus 1.00%, with a minimum rate of 1.00% per annum.

The Adjusted Term SOFR Rate is the Term SOFR Rate plus 0.10%.

An applicable margin is determined based on the Company's Total Net Leverage Ratio and ranges from 0.75% to 1.75% for Alternate Base Rate loans and from 1.75% to 2.75% for Adjusted Term SOFR Rate loans.

The New Credit Facilities mature five years following the date of the initial advance, or July 18, 2030 (the “Maturity Date”). All outstanding balances are due on the Maturity Date.

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Under the New Term Loan and Revolving Facility, $25,000,000 and $2,000,000, respectively, were immediately drawn and used to pay $25,342,529 as payoff for the A&R Revolving Line of Credit and to pay $631,700 in transaction fees and expenses. The remaining $1,026,237.50 balance was deposited by the Company to the PNC Checking account.

On August 18, 2025, the balance of $2,000,000 on the Revolving Facility was paid off.

For the three and six months ended March 31, 2026, the Initial Term Loan had an effective interest rate of 6.0%, and 6.3%, respectively.

Initial Term Loan

The Initial Term Loan requires quarterly principal payments of $625,000 commencing September 30, 2025, with the remaining balance due on the Maturity Date.

Revolving Facility Loan

The Revolving Facility matures five years (i.e. July 18, 2030) following the date of the initial advance (the “Maturity Date”) with all outstanding balances due on the Maturity Date.

The Revolving Facility principal is due on the Maturity Date. All amounts outstanding under the Credit Facilities will be due and payable upon the earlier of the Maturity Date, or the acceleration of the Credit Facilities upon an event of default.

There were no borrowings drawn on the Revolving Facility during the three and six months ending March 31, 2026.

Delayed Draw Term Loan

The Delayed Draw Term Loan requires quarterly principal payments equal to 2.50% of the original aggregate principal amount commencing with the first scheduled payment date after January 18, 2026, with the remaining balance due on the Maturity Date.

In March 2026, the Company borrowed $32.0 million of the available Delayed Draw Term Loan facility to finance the Honeywell Autopilot Agreement and the Honeywell Generators Agreement acquisitions.

​

Debt Issuance Costs

For the Initial Term Loan, debt issuance costs of $246,148 were capitalized as contra-liabilities and are amortized as interest expense on a basis that approximates the effective interest method over the term of the Initial Term Loan debt. Contra-liabilities are netted against and presented as a direct deduction from the carrying amount of debt. The unamortized balance of the Initial Term Loan contra-liabilities as of December 31, 2025 was $220,143.

For the Revolving Facility and the Delayed Draw Term Loan, debt issuance costs of $295,378 and $443,066, respectively, were capitalized as assets and are amortized using straight-line amortization to interest expense over the terms of the respective debt. The current and non-current capitalized assets related to the Revolving Facility and the Delayed Draw Term Loan are aggregated to Current Other Assets and Non-Current Other Assets on the Consolidated Balance Sheet. The unamortized balances of the Revolving Facility and the Delayed Draw Term Loan included in current and non-current other assets as of March 31, 2026 were $253,504 and $380,256, respectively.

​

Future borrowings under the Initial Term Loan and Revolving Facility may be used for working capital and general corporate purposes, including permitted acquisitions. The Delayed Draw Term Loan may only be used for permitted acquisitions.

Debt Collateral and Covenants

The Company’s obligations under the 2025 Credit Agreement are secured by substantially all of the assets of the Company and certain of its subsidiaries, including a first priority lien on the Company's Exton facility.

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The Company’s Initial Term Loan Facility, Revolving Facility and Delayed Term Loan facility contain affirmative and negative covenants that, among other things, may limit or restrict the Company’s ability to: create liens and encumbrances; incur debt; merge, dissolve, liquidate or consolidate; make acquisitions and investments; dispose of or transfer assets; change the nature of our business; engage in certain transactions with affiliates; and enter into hedging transactions, in each case, subject to certain qualifications and exceptions. In addition, we are required to maintain a maximum net leverage ratio and a minimum fixed charge coverage ratio.

The Company was in compliance with all debt covenants as of March 31, 2026.

Commitment Fees

The 2025 Credit Agreement terms include Revolving Facility and Delayed Draw Term Loan Facility commitment fees.

For the three months ended March 31, 2026, unused line of credit fees of $17,541 under the Revolving Facility and $24,985 under the Delayed Draw Term Loan were included in interest expense.

For the six months ended March 31, 2026, unused line of credit fees of $36,708 under the Revolving Facility and $53,735 under the Delayed Draw Term Loan were included in interest expense.

Long-term debt, excluding contra-liabilities, consisted of the following:

​

​ | ​ | ​ | ​ | ​ | ​
​ | March 31, | ​ | September 30,
​ | 2026 | ​ | 2025
Total Debt | $ | 55,125,000 | ​ | $ | 24,375,000
Less current maturities (b) | ​ | 5,700,000 | ​ | ​ | 2,500,000
Total Long Term Debt (a) | $ | 49,425,000 | ​ | $ | 21,875,000

(a) | As of March 31, 2026, Total Long Term Debt comprised $23.1 million of Initial Term Loan and $32.0 million of Delayed Draw Term Loan, respectively

(b) | As of March 31, 2026, Current Maturities of Debt comprised $2.5 million of Initial Term Loan and $3.2 million of Delayed Draw Term Loan, respectively.

​

As of March 31, 2026, scheduled annual payments based on the maturities of debt are expected to be as follows:

​ | ​
Fiscal year | Annual payments
2026 (Six months remaining) | $ 2,850,000
2027 | 5,700,000
2028 | 5,700,000
2029 | 5,700,000
2030 | 35,175,000
Total | $ 55,125,000

​

* Excludes interest payments payable at each debt reset date

Loan Facilities Availability

As of March 31, 2026, the Company had availability of $30,000,000 under the Revolving Facility and $13,000,000 under the Delayed Draw Term Loan facility.

The Company has the right to request up to $25,000,000 in additional revolving commitments or incremental term loans, subject to lender approval and satisfaction of certain conditions.

​

10. Subsequent Events

​

None.

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

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

​

This report 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 are based largely on current expectations and projections about future events and trends affecting the business, are not guarantees of future performance, and involve a number of risks, uncertainties and assumptions that are difficult to predict. In this report, the words “anticipates,” “believes,” “may,” “will,” “estimates,” “continues,” “intends,” “forecasts,” “expects,” “plans,” “could,” “should,” “would,” “is likely”,” “ projected,” “might,” “potential,” “preliminary,” “provisionally,” and similar expressions, as they relate to the business or to its management, are intended to identify forward-looking statements, but they are not exclusive means of identifying them. Unless the context otherwise requires, all references herein to “IA,” the “Registrant,” the “Company,” “we,” “us” or “our” are to Innovative Solutions and Support, Inc. and its consolidated subsidiaries. ThrustSense® and COCKPIT/IP®, among others, are trademarks of the Company. All other trademarks appearing herein are held by their respective owners. Subsequent use of the Company’s trademarks in this report may occur without the applicable superscript symbol (® or TM) in order to facilitate the readability of this report and are not a waiver of rights that may be associated with the relevant trademarks.

All forward-looking statements are based on management’s current expectations and beliefs concerning future developments and their potential effects on the Company. Many of the factors that will determine the Company’s future results are beyond the ability of management to control or predict. The forward-looking statements in this report are only predictions and actual events or results may differ materially. In evaluating such statements, a number of risks, uncertainties and other factors could cause actual results, performance, financial condition, cash flows, prospects and opportunities to differ materially from those expressed in, or implied by, the forward-looking statements. These risks, uncertainties and other factors include those set forth in Item 1A (Risk Factors) of the Company’s Annual Report on Form 10-K for the fiscal year ended September 30, 2025, as well as the following factors:

● | market acceptance of the Company’s ThrustSense® Autothrottle, Vmca Mitigation, flight panel display systems, NextGen Flight Deck and COCKPIT/IP® or other planned products or product enhancements;

● | continued market acceptance of the Company’s air data systems and products;

● | the competitive environment and new product offerings from competitors;

● | difficulties in developing, producing or improving the Company’s planned products or product enhancements;

● | the deferral or termination of programs or contracts for convenience by customers;

● | the ability to service the international market;

● | the availability of government funding;

● | the impact of general economic trends, including tariffs and other trade restrictions, on the Company’s business;

● | disruptions in the Company’s supply chain, customer base and workforce;

● | the ability to gain, drive and sustain regulatory approval, including domestic and international certifications, of products in a timely manner;

● | delays in receiving components from third-party suppliers;

● | the bankruptcy or insolvency of one or more key customers;

● | protection of intellectual property rights, including via securing patents;

● | the ability to respond to technological change;

● | failure to recruit and retain key personnel;

● | risks related to succession planning;

● | a cybersecurity incident;

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● | risks related to our self-insurance program;

● | potential future acquisitions and integration of prior and potential future acquisitions;

● | the costs of compliance with present and future laws and regulations;

● | changes in law, including changes to corporate tax laws in the United States and the availability of certain tax credits; and

● | other factors disclosed from time to time in the Company’s filings with the U.S. Securities and Exchange Commission (the “SEC”).

Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this report. The Company does not undertake any obligation to publicly release any revisions to these forward-looking statements to reflect events, circumstances or changes in expectations after the date of this report, or to reflect the occurrence of unanticipated events. The forward-looking statements in this document are intended to be subject to the safe harbor protection provided by Sections 27A of the Securities Act of 1933, as amended (the “Securities Act”) and 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”).

Investors should also be aware that while the Company, from time to time, communicates with securities analysts, it is against its policy to disclose any material non-public information or other confidential commercial information. Accordingly, shareholders should not assume that the Company agrees with any statement or report issued by any analyst irrespective of the content of the statement or report. Furthermore, the Company has a policy against issuing or confirming financial forecasts or projections issued by others. Thus, to the extent that reports issued by securities analysts contain any projections, forecasts or opinions, such reports are not the responsibility of the Company.

Objective

The following discussion provides an analysis of the Company’s financial condition, cash flows and results of operations from management’s perspective and should be read in conjunction with “Selected Consolidated Financial Data” and the consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended September 30, 2025. Our objective is to also provide discussion of events and uncertainties known to management that are reasonably likely to cause reported financial information not to be indicative of future operating results or of future financial condition and to offer information that provides understanding of our financial condition, cash flows and results of operations.

Company Overview

The Company was incorporated in Pennsylvania on February 12, 1988. The Company operates in one business segment as a systems integrator that designs, develops, manufactures, sells and services, air data equipment, engine display systems, standby equipment, primary flight guidance, autothrottles and cockpit display systems for retrofit applications and OEMs. The Company supplies integrated flight management systems, flat panel display systems, flat panel display systems with autothrottle, air data equipment, integrated standby units, integrated standby units with autothrottle and advanced GPS receivers that enable reduced carbon footprint navigation, communication and navigation products and inertial reference units.

The Company has continued to position itself as a system integrator, which provides the Company with the capability and potential to generate more substantive orders over a broader product base. This strategy, as both a manufacturer and integrator, has positioned the Company to deliver cost-effective solutions for the general aviation, commercial air transport, and the DoD and governmental and foreign military markets. This approach, combined with the Company’s deep industry experience across OEMs and platforms is designed to enable the Company to develop high-quality products and systems, to reduce product time to market and to achieve cost advantages over products offered by its competitors.

The Company sells to both the OEM and the retrofit markets. Customers include various OEMs, commercial air transport carriers and corporate/general aviation companies, the DoD and its commercial contractors, aircraft operators, aircraft modification centers, government agencies and foreign militaries. Occasionally, the Company sells its products directly to the DoD; however, the Company sells its products primarily to commercial customers for end use in DoD programs. Sales to defense contractors are generally made on commercial terms, although some of the termination and other provisions of government contracts are applicable to these contracts. The Company’s retrofit projects are generally pursuant to either a direct contract with a customer or a subcontract with a general contractor to a customer (including government agencies).

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In June 2023, the Company entered into an agreement with Honeywell (the “June 2023 Honeywell Agreement”) pursuant to which Honeywell sold, assigned or licensed certain assets related to its inertial, communication and navigation product lines, including a sale of certain inventory, equipment and customer-related documents, an assignment of certain contracts and a grant of exclusive and non-exclusive licenses to use certain Honeywell intellectual property related to its inertial, communication and navigation product lines to repair, overhaul, manufacture, sell, import, export and distribute certain products to the Company for cash consideration of $35.9 million.

In July 2024, the Company entered into an exclusive license agreement and acquired additional key assets for certain communication and navigation product lines from Honeywell (the “July 2024 Honeywell Asset Acquisition”). Total consideration was $4.2 million in cash.

On September 27, 2024, the Company entered into a further agreement with Honeywell (the “September 2024 Honeywell Agreement”), pursuant to which Honeywell sold, assigned or licensed certain assets related to its various generations of military display generators and flight control computers, including a sale of certain inventory, equipment and customer-related documents; an assignment of certain contracts; and a grant of exclusive and non-exclusive licenses to use certain Honeywell intellectual property related to its various generations of military display generators and flight control computers to repair, overhaul, manufacture, sell, import, export and distribute certain products to the Company for consideration of $14.2 million in cash.

Following the acquisition of Honeywell’s military display generators and flight control computers business, Honeywell has continued to manufacture these products and maintain related inventory at its facilities under the September 2024 Honeywell Agreement. Revenue and costs from this production are attributed to and reported by the Company; however, the Company relies on Honeywell for access to the operational and financial data needed to prepare its financial statements. The Company has limited ability to oversee the operations or verify the data received from Honeywell, making it difficult to predict revenues and gross margins. Over the coming months, the production of the military display generators and flight control computers business will cease at Honeywell facilities and transition to the Company’s facilities. During this transition process, production will be temporarily halted while the Company ramps up its production and inventory at its facilities. In anticipation of the transition, Honeywell is expected to accelerate its production of these products in the short term. We anticipate this will lead to a spike in revenues in the short term followed by a temporary dip in revenues before revenues are normalized.

On March 27, 2026, the Company entered into and closed the transactions contemplated by that certain Asset Purchase and License Agreement (the “Honeywell Autopilot Agreement”) with Honeywell. Pursuant to the Autopilot Agreement, Honeywell sold, assigned or licensed certain assets related to its general aviation autopilots and nav/com, multifunction display and transponder radios, granted exclusive and non-exclusive licenses to use certain Honeywell intellectual property related to its general aviation autopilots and nav/com, multifunction display and transponder radios to repair, overhaul, manufacture, sell, import, export and distribute certain products and granted certain other intellectual property rights to the Company for consideration of $22.0 million in cash.

​

On March 28, 2026, the Company entered into and closed the transactions contemplated by that certain Asset Purchase and License Agreement (the “Honeywell Generators Agreement”) with Honeywell. Pursuant to the Generators Agreement, Honeywell sold, assigned or licensed certain assets related to its electronic generator and generator control unit for the F-15 and 767 tanker/freight platforms, including a sale of certain inventory, equipment and customer-related documents; an assignment of certain contracts; and a grant of exclusive and non-exclusive licenses to use certain Honeywell intellectual property related to its electronic generator and generator control unit for the F-15 and 767 tanker/freight platforms to repair, overhaul, manufacture, sell, import, export and distribute certain products to the Company for consideration of $8.0 million in cash.

​

As a result, the Company anticipates revenues related to the above Honeywell transactions will continue to fluctuate significantly over the next few quarters. The transition of the business from Honeywell to the Company’s facilities will involve certain risks that may adversely impact operational performance and reported results.

Cost of sales related to product and service sales comprises materials, components and third-party avionics purchased from suppliers, direct labor and overhead costs. Many of the components are standard, although certain parts are manufactured to meet the Company’s specifications. The overhead portion of cost of sales are primarily comprised of salaries and benefits, building occupancy costs, supplies and outside service costs related to production, purchasing, material control and quality control. Cost of sales also includes warranty costs.

Cost of sales related to EDC sales comprises engineering labor, consulting services and other costs associated with specific design and development projects. These costs are incurred pursuant to contractual arrangements and are accounted for typically as contract costs

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within cost of sales, with reimbursement accounted for as a sale in accordance with the percentage-of-completion method or completed contract method of accounting. Company funded R&D expenditures relate to internally funded efforts for the development of new products and the improvement of existing products. These costs are expensed as incurred and reported as R&D expenses. The Company intends to continue investing in the development of new products that complement current product offerings and to expense associated R&D costs as they are incurred.

Selling, general and administrative (“SG&A”) expenses consist of sales, marketing, business development, professional services, salaries and benefits for executive and administrative personnel, facility costs, recruiting, legal, accounting and other general corporate expenses.

Environmental, Social and Governance Considerations

​

In recent years, environmental, social and governance (“ESG”) issues have become an increasing area of focus for some of our shareholders, customers and suppliers. Management and the Company’s Board are committed to identifying, assessing and understanding the potential impact of ESG issues and related risks on the Company’s business model, as well as potential areas of improvement.

​

We are committed to recruiting, motivating and developing a diversity of talent. We are an equal opportunity employer and a Vietnam Era Veterans’ Readjustment Assistance Act federal contractor. All qualified applicants receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, or any other characteristic protected by law.

​

The nature of our business also supports long-term sustainability. Historically, a majority of the Company’s sales have come from the retrofit market, in which the Company, by making upgrades to improve the functionality and safety of existing machinery, facilitates the re-use and recycling of aircraft and equipment that might otherwise be scrapped as obsolete. The Company’s GPS receivers also facilitate reduced carbon footprint navigation. The Company also plans to enhance its focus on the environmental impact of its operations.

​

Critical Accounting Policies and Estimates

​

The discussion and analysis of financial condition and consolidated results of operations are based upon the Company’s condensed consolidated financial statements, which have been prepared in accordance with generally accepted accounting principles in the United States (“U.S. GAAP”). The preparation of these condensed consolidated financial statements requires estimates and assumptions that affect the reported amounts of assets, liabilities, sales and expenses and related disclosure of contingent assets and liabilities. Management has determined that the most critical accounting policies and estimates are those related to revenue recognition, inventory valuation and valuation of tangible and intangible assets acquired. On an ongoing basis, the Company’s management evaluates its estimates based upon historical experience and various other assumptions that it believes to be reasonable in the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates.

The Company believes that its critical accounting policies affect its more significant estimates and judgments used in the preparation of its condensed consolidated financial statements. The Annual Report on Form 10-K for the fiscal year ended September 30, 2025 contains a discussion of these critical accounting policies. See also Note 1 to the unaudited condensed consolidated financial statements for the three and six months ended March 31, 2026 included in this Quarterly Report on Form 10-Q.

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RESULTS OF OPERATIONS FOR THE THREE AND SIX MONTHS ENDED

MARCH 31, 2026 AND 2025

The following table sets forth the statements of operations data expressed as a percentage of total net sales for the periods indicated (some items may not add due to rounding):

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ ​ ​ | Three Months Ended March 31, | ​ | Six Months Ended March 31, | ​
​ | ​ ​ ​ | 2026 | ​ ​ ​ | 2025 | ​ ​ ​ | 2026 | ​ ​ ​ | 2025 | ​ ​ ​
Net sales: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Product | ​ | 64.0 | % | 60.1 | % | 63.1 | % | 61.1 | %
Services | ​ | 36.0 | % | 39.9 | % | 36.9 | % | 38.9 | %
Total net sales | ​ | 100.0 | % | 100.0 | % | 100.0 | % | 100.0 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cost of sales: | ​ | ​ |  | ​ |  | ​ |  | ​ |
Product | ​ | 32.3 | % | 24.1 | % | 31.3 | % | 30.4 | %
Services | ​ | 16.6 | % | 24.5 | % | 15.9 | % | 22.4 | %
Total cost of sales | ​ | 48.9 | % | 48.6 | % | 47.2 | % | 52.8 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Gross profit | ​ | 51.1 | % | 51.4 | % | 52.8 | % | 47.2 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating expenses: | ​ | ​ |  | ​ |  | ​ |  | ​ |
Research and development | ​ | 8.0 | % | 4.0 | % | 7.0 | % | 5.2 | %
Selling, general and administrative | ​ | 21.0 | % | 15.6 | % | 20.3 | % | 20.0 | %
Total operating expenses | ​ | 29.0 | % | 19.6 | % | 27.3 | % | 25.2 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating income | ​ | 22.1 | % | 31.8 | % | 25.5 | % | 22.0 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Interest expense | ​ | (2.3) | % | (1.8) | % | (2.2) | % | (2.2) | %
Interest income | ​ | 0.0 | % | 0.0 | % | 0.0 | % | 0.0 | %
Other income | ​ | — | % | — | % | 0.1 | % | 0.0 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Income before income taxes | ​ | 19.8 | % | 30.0 | % | 23.4 | % | 19.8 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Income tax expense | ​ | 4.4 | % | 5.7 | % | 6.4 | % | 3.8 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income | ​ | 15.4 | % | 24.3 | % | 17.0 | % | 16.0 | %

​

​

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Three Months Ended March 31, 2026 Compared to the Three Months Ended March 31, 2025

Net sales. Net sales for the three months ended March 31, 2026, increased by 2.0% to $22.4 million, up from net sales of $21.9 million for the three months ended March 31, 2025. The increase in net sales principally reflects an increase of $4.3 million in commercial aftermarket product sales and an increase of $1.1 million in business aviation, partially offset by a decrease of $4.4 million in military product sales, primarily due to the transition of F-16 production into the Exton facility. Services sales for the three months ended March 31, 2026, decreased $0.7 million, or 8.0%, compared to Services sales for the three months ended March 31, 2025, of $8.8 million. The decrease in Services sales primarily reflects a decrease in service volumes related to the IRUs and radio product lines acquired in 2023 and 2024 of $0.6 million and a $0.1 million decrease in legacy customer service revenue.

Cost of sales. Cost of sales was $10.9 million, or 48.9% of net sales, for the three months ended March 31, 2026 compared to $10.7 million, or 48.6% of net sales, for the three months ended March 31, 2025. The change in cost of sales for the three months ended March 31, 2026 compared to the three months ended March 31, 2025 principally reflects product mix, with net sales growth of $4.3 million in commercial aftermarket sales while OEM and military net sales decreased by $4.4 million and net service sales decreased by $0.7 million. Gross profit was $11.4 million, or 51.1% of net sales, for the three months ended March 31, 2026 compared to $11.3 million, or 51.4% of net sales, for the three months ended March 31, 2025. The slight decrease in gross margin principally reflects the higher amortization expense for intangible and other long-term assets, partially offset by improved absorption of fixed costs due to the increase in net sales.

Research and development. R&D expense increased $0.9 million, or 106.3%, to $1.8 million for three months ended March 31, 2026 from $0.9 million for the three months ended March 31, 2025. As a percentage of net sales, R&D expenses increased to 8.0% of net sales for the three months ended March 31, 2026 from 4.0% of net sales for the three months ended March 31, 2025. The increase in R&D expenses as a percentage of revenues in the quarter was primarily the result of additional headcount to support the development of future products. For the three months ended March 31, 2026 and 2025, $0.4 million of R&D expense was recharacterized as cost of sales related to the EDC sales, which was offset by $0.6 million in additional engineering staffing to support the Company’s development programs.

SG&A. SG&A expenses increased $1.3 million or 38.7%, to $4.7 million for the three months ended March 31, 2026 from $3.4 million for the three months ended March 31, 2025. The increase in SG&A expense for the three months ended March 31, 2026 was primarily the result of increases in employee-related costs of $0.7 million, and one-time charges of $0.8 million related to the three acquisitions that closed during the quarter. As a percentage of net sales, SG&A expenses were 21.0% for the three months ended March 31, 2026 compared to 15.6% for the three months ended March 31, 2025.

Interest expense. Interest expense was $0.5 million for the three months ended March 31, 2026, an increase of $0.1 million from $0.4 million for the three months ended March 31, 2025. The change was due to approximately $0.1 million in amortization of deferred financing fees.

Interest income. Interest income was negligible for the three months ended March 31, 2026 and 2025, respectively.

Other income. Other income was $0 for the three months ended March 31, 2026 and $0 for the three months ended March 31, 2025.

Income taxes. Income tax expense was $1.0 million for the three months ended March 31, 2026 compared to income tax expense of $1.3 million for the three months ended March 31, 2025. The effective tax rate for the three months ended March 31, 2026 was 22.5% as compared to 19.2% for the three months ended March 31, 2025. The increases in income tax expense and the effective tax rate were primarily due to the unfavorable effects of state income taxes, tax credits, temporary and permanent tax differences related to stock-based compensation and certain non-deductible expenses for the three months ended March 31, 2026, compared to the three months ended March 31, 2025.

Net income. As a result of the factors described above, the Company’s net income for the three months ended March 31, 2026 was $3.4 million compared to net income of $5.3 million for the three months ended March 31, 2025. On a fully diluted basis, net income per share was $0.19 for the three months ended March 31, 2026, compared to a net income of $0.30 per share for the three months ended March 31, 2025.

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Six Months Ended March 31, 2026 Compared to the Six Months Ended March 31, 2025

Net sales. Net sales for the six months ended March 31, 2026, increased by 16.5% to $44.2 million, up from net sales of $37.9 million for the six months ended March 31, 2025. The increase in net sales principally reflects an increase of $9.9 million in commercial aftermarket product sales and an increase of $,0.6 million in business aviation, partially offset by a decrease of $5.9 million in military product sales, primarily due to the transition of F-16 production into the Exton facility. Services sales for the six months ended March 31, 2026, increased $1.6 million, or 10.6% to $16.3 million, compared to Services sales for the six months ended March 31, 2025, of $14.7 million. The increase in Services sales primarily reflects growth in service volumes related to the IRUs and radio product lines acquired in 2023 and 2024 of $1.7 million, partially offset by a $0.1 million decrease in legacy customer service revenue.

Cost of sales. Cost of sales was $20.9 million, or 47.2% of net sales, for the six months ended March 31, 2026 compared to $20.0 million, or 52.8% of net sales, for the six months ended March 31, 2025. The change in cost of sales for the six months ended March 31, 2026 compared to the six months ended March 31, 2025 principally reflects product mix with net sales growth of $9.9 million in commercial aftermarket sales and $0.6 million in business aviation while OEM and military net sales decreased by $5.9 million. Gross profit was $23.3 million, or 52.8% of net sales, for the six months ended March 31, 2026 compared to $17.9 million, or 47.2% of net sales, for the six months ended March 31, 2025. The increase in gross margin principally reflects the previously mentioned net sales growth, a more favorable product mix within our commercial aftermarket product line, and a higher proportion of commercial aftermarket revenue, which by nature has higher gross margins as compared to military and OEM business.

Research and development. R&D expense increased $1.1 million, or 57.8%, to $3.1 million for the six months ended March 31, 2026 from $2.0 million for the six months ended March 31, 2025. As a percentage of net sales, R&D expenses increased to 7.0% of net sales for the six months ended March 31, 2026 from 5.3% of net sales for the six months ended March 31, 2025. The increase in R&D expenses as a percentage of revenues in the quarter was primarily the result of additional headcount to support the development of future products. For the six months ended March 31, 2026 and 2025, $1.0 million of R&D expense was recharacterized as cost of sales related to the EDC sales, which was offset by $0.8 million in additional engineering staffing to support the Company’s development programs.

SG&A. SG&A expenses increased $1.4 million, or 18.4%, to $9.0 million for the six months ended March 31, 2026 from $7.6 million for the six months ended March 31, 2025. The increase in SG&A expense for the six months ended March 31, 2026 was primarily the result of increases in employee-related costs of $1.4 million and an increase in one-time charges of $0.5 million related to three acquisitions that closed during the six months ended March 31, 2026. As a percentage of net sales, SG&A expenses were 20.3% for the six months ended March 31, 2026 compared to 20.0% for the six months ended March 31, 2025.

Interest expense. Interest expense was $1.0 million for the six months ended March 31, 2026, an increase of $0.2 million from $0.8 million for the six months ended March 31, 2025. The change was due to approximately $0.1 million in amortization of deferred financing fees.

Interest income. Interest income was negligible for the six months ended March 31, 2026 and 2025, respectively.

Other income. Other income was negligible for the six months ended March 31, 2026 and 2025, respectively.

Income taxes. Income tax expense was $2.8 million for the six months ended March 31, 2026 as compared to income tax expense of $1.5 million for the six months ended March 31, 2025. The effective tax rate for the six months ended March 31, 2026 was 27.3% as compared to 19.2% for the six months ended March 31, 2025. The increases in income tax expense and the effective tax rate were primarily due to an increase in income before income taxes as well as the unfavorable effects of state income taxes, tax credits, temporary and permanent tax differences related to stock-based compensation and certain non-deductible expenses for the six months ended March 31, 2026, compared to the six months ended March 31, 2025.

Net income. As a result of the factors described above, the Company’s net income for the six months ended March 31, 2026 was $7.5 million compared to net income of $6.1 million for the six months ended March 31, 2025. On a fully diluted basis, net income per share was $0.42 for the six months ended March 31, 2026, compared to a net income of $0.34 per share for the six months ended March 31, 2025.

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Liquidity and Capital Resources

The following table highlights key financial measures of the Company:

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | As of | ​ | ​ | As of
​ | ​ | ​ | March 31, | ​ | ​ | September 30,
​ | ​ ​ ​ | 2026 | ​ ​ ​ | 2025
Cash and cash equivalents | ​ | $ | 6,764,157 | ​ | $ | 2,693,595
Accounts receivable | ​ | $ | 13,188,080 | ​ | $ | 12,956,476
Current assets | ​ | $ | 53,216,886 | ​ | $ | 50,727,300
Current liabilities | ​ | $ | 16,478,600 | ​ | $ | 16,661,109
Contract liabilities | ​ | $ | 2,220,944 | ​ | $ | 2,481,929
Other non-current liabilities | ​ | $ | 49,675,904 | ​ | $ | 22,096,502
Quick ratio (1) | ​ |  | 1.21 | ​ |  | 0.94
Current ratio (2) | ​ |  | 3.23 | ​ |  | 3.04

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ ​ ​ | Six Months Ended March 31, | ​ ​ ​
​ | ​ | 2026 | ​ ​ ​ | 2025 | ​
Cash flow activities: |  | ​ | ​ |  | ​ | ​ |
Net cash provided by operating activities | ​ | $ | 10,450,931 | ​ | $ | 3,129,364 | ​
Net cash used in investing activities | ​ |  | (35,734,392) | ​ |  | (1,817,015) | ​
Net cash provided by (used in) financing activities | ​ |  | 29,354,023 | ​ |  | (625,678) | ​

(1) | Calculated as: the sum of cash and cash equivalents plus accounts receivable, net, divided by current liabilities.

(2) | Calculated as: current assets divided by current liabilities.

The Company’s principal source of liquidity has been cash flows from current period operations and cash accumulated from prior periods’ operations, supplemented with our revolving credit facility. Cash is used principally to finance inventory, accounts receivable, contract assets, payroll, debt service and acquisitions, as well as the Company’s known contractual and other commitments. The Company’s existing cash balances and anticipated cash flows from operations, together with borrowings under our revolving credit facility, are expected to be adequate to satisfy the Company’s liquidity needs for at least the next 12 months. Apart from what has been disclosed in this Management’s Discussion and Analysis and in Part I, Item 1A of the Company’s Annual Report on Form 10-K for the fiscal year ended September 30, 2025, management is not aware of any trends, events or uncertainties that have had or are likely to have a material impact on our liquidity, financial condition and capital resources.

2025 Credit Agreement

On July 18, 2025, the Company, its wholly-owned subsidiary Innovative Solutions and Support, LLC (“Borrower”) and certain domestic subsidiaries entered into a Credit Agreement (the “2025 Credit Agreement”) with J.P. Morgan Chase Bank, N.A. (the “Bank”) and the other lender parties thereto, which Credit Agreement provides for the Bank to extend to the Borrower credit facilities in an aggregate principal amount of up to $100.0 million (the “JPM Facility”), consisting of the following:

1)a $25,000,000 initial term loan facility (the “Initial Term Loan”);

2)a $30,000,000 revolving credit facility (the “Revolving Facility”); and

3)a $45,000,000 delayed draw term loan facility (the “Delayed Draw Term Loan”).

See footnote 9. Loan Agreement to the unaudited condensed consolidated financial statements for the three and six months ended March 31, 2026 included in this Quarterly Report on Form 10-Q for additional disclosures related to the 2025 Credit Agreement.

Stifel Sales Agreement

On September 22, 2023, the Company entered into an at-the-market equity offering Sales Agreement (the “ATM Sales Agreement”) with Stifel, Nicolaus & Company, Incorporated (the “Sales Agent”), pursuant to which the Company may offer and sell from time to time through the Sales Agent up to $40 million of shares of its common stock. Subject to the terms and conditions of the ATM Sales

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Agreement, the Sales Agent is required to use commercially reasonable efforts to sell shares of the Company’s common stock from time to time, based upon the Company’s instructions. The Company is not obligated to sell any shares under the ATM Sales Agreement, and the Company or the Sales Agent may at any time suspend solicitation and offers under the ATM Sales Agreement or terminate the ATM Sales Agreement. The Company has provided the Sales Agent with customary indemnification rights, and the Sales Agent will be entitled to compensation for its services of up to 3.0% of the gross sales price per share of the shares of the Company’s common stock sold through the Sales Agent. Sales of the shares of the Company’s common stock, if any, under the ATM Sales Agreement may be made in transactions that are deemed to be “at the market offerings” as defined in Rule 415 under the Securities Act, including sales made directly on or through Nasdaq or any other existing trading market for the Company’s common stock, in negotiated transactions at market prices prevailing at the time of sale or at prices related to such prevailing market prices and/or any other method permitted by law.

During the fiscal years ended September 30, 2024 and September 30, 2025, and during the three and six months ended March 31, 2026, we did not sell any shares of common stock under the ATM Sales Agreement.

Future Funding Requirements

The Company’s existing cash balances, anticipated cash flows from operations and current banking facility are expected to be adequate to satisfy the Company’s liquidity needs for at least the next 12 months.

Apart from what has been disclosed above, management is not aware of any trends, events or uncertainties that have had or are likely to have a material impact on our liquidity, financial condition and capital resources.

The Company did not pay cash dividends in fiscal years 2024 or 2025, or in the three and six months ended March 31, 2026. The Company currently intends to retain future earnings, if any, to finance the development and growth of its business and does not anticipate paying any cash dividends in the foreseeable future. The declaration and payment of any dividend in the future will be at the discretion of the Company’s Board of Directors and will depend on then-existing conditions, including our operating results, financial condition, business prospects and other factors the Board may deem relevant.

Operating activities

Net cash provided by operating activities was $10.5 million for the six months ended March 31, 2026 and consisted primarily of funding from net income of $7.5 million and changes in working capital.

Net cash provided by operating activities was $3.1 million for the six months ended March 31, 2025 and consisted primarily of funding from net income of $6.1 million and changes in working capital.

Investing activities

Net cash used in investing activities was $35.7 million for six months ended March 31, 2026 and was primarily due to the $22.0 million acquisition for the Honeywell Autopilot Agreement, $8.0 million for the Honeywell Generators Agreement and $3.5 for the S-TEC® acquisition. In addition, the Company spent $1.3 million for the purchase of an Eclipse business jet for research and development and $1.4 million for additions and improvements in the Company’s facilities and the purchases of equipment.

​

Net cash used in investing activities was $1.8 million for the six months ended March 31, 2025 and consisted of expenditures related to additions and improvements in the Company’s facilities and purchases of equipment and computer hardware.

Financing activities

Net cash provided by financing activities was $29.3 million for the six months ended March 31, 2026 and consisted of proceeds of $32.0 million from the delayed draw term loan to fund acquisitions offset by payments against the Company’s term loan of $1.3 million and $1.4 million for the tax payments of vested equity award shares withheld for taxes.

​

Net cash used in financing activities was $0.6 million for the six months ended March 31, 2025 and consisted of payments against the Company’s line of credit.

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Summary

Future capital requirements depend upon numerous factors, including market acceptance of the Company’s products, the timing and rate of expansion of business, acquisitions, joint ventures and other factors. IA has experienced increases in expenditures since its inception and anticipates that expenditures will continue to increase in the foreseeable future. The Company believes that its cash and cash equivalents will provide sufficient capital to fund operations for at least the next twelve months. However, the Company may need to develop and introduce new or enhanced products, respond to competitive pressures, invest in or acquire businesses or technologies, or respond to unanticipated requirements or developments.

Backlog

​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Three Months Ended | ​ | ​ | Six Months Ended
​ | ​ ​ ​ | ​ | March 31, 2026
Backlog, beginning of period | ​ | $ | 75,278,627 | ​ | $ | 77,428,498
Plus: bookings during period, net | ​ |  | 24,676,380 | ​ |  | 44,333,592
Plus: acquired through acquisition | ​ | ​ | 9,386,136 | ​ | ​ | 9,386,136
Less: sales recognized during period | ​ |  | (22,365,029) | ​ |  | (44,172,112)
Backlog, end of period | ​ | $ | 86,976,114 | ​ | $ | 86,976,114

​

Backlog represents the value of contracts and purchase orders, less the revenue recognized to date on those contracts and purchase orders. The backlog includes committed purchases and excludes potential future sole-source production orders under our current OEM contracts, including the Pilatus PC-24, the Boeing KC-46A and the Textron King Air 360 and King Air 260 ThrustSense® Autothrottle programs.

At March 31, 2026, our backlog was $87.0 million compared with $77.4 million at September 30, 2025. Backlog is converted into sales in future periods as work is performed or deliveries are made. We expect to recognize approximately 67% of our backlog over the next 12 months and approximately 97% over the next 24 months as revenue, with the remainder recognized thereafter.

Off-Balance Sheet Arrangements

The Company has no relationships with unconsolidated entities or financial partnerships, such as Special Purpose Entities or Variable Interest Entities, established for the purpose of facilitating off-balance sheet arrangements or other limited purposes.

​

Item 3. Quantitative and Qualitative Disclosures About Market Risk

The Company’s exposure to market risk for changes in interest rates relates to its cash equivalents. The Company’s cash equivalents consist of funds invested in money market funds, which bear interest at a variable rate. A change in interest rates earned on the Company’s cash equivalents would impact interest income and cash flows but would not impact the fair market value of the underlying instruments. Assuming that the balances during the three and six months ended March 31, 2026 were to remain constant and that the Company did not act to alter the existing interest rate sensitivity, a hypothetical +/-1% change in interest rates would not have a material impact on our results of operations, financial position or cash flows.

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We carried out an evaluation under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures, as such term is defined under Rule 13a-15(e) promulgated under the Exchange Act. Based on that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that these controls and procedures were effective as of March 31, 2026 to provide reasonable assurance that information required to be disclosed by us in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the rules and forms of the SEC and that such information is accumulated and communicated to our management including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

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Changes in Internal Control over Financial Reporting

There were no changes in the Company’s internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) identified in connection with the evaluation of such controls that occurred during the three and six months ended March 31, 2026 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

PART II–OTHER INFORMATION

Item 1. Legal Proceedings

In the ordinary course of business, the Company is at times subject to various legal proceedings and claims. There can be no assurance that we will prevail in any such litigation. The Company does not believe any such matters that are currently pending will, individually or in aggregate, have a material effect on the results of operations or financial position.

​

Item 1A. Risk Factors

For information regarding the Company’s risk factors, refer to the “Risk Factors” in Part I, Item 1A of the Company’s Annual Report on Form 10-K for the year ended September 30, 2025, filed with the SEC on December 22, 2025. There have been no material changes in our risk factors as previously disclosed in Part I, Item 1A of the Company’s Annual Report on Form10-K for the fiscal year ended September 30, 2025.

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

Unregistered Sales of Equity Securities

There were no unregistered sales of equity securities during the three and six months ended March 31, 2026.

Use of Proceeds

Not applicable.

Purchase of Equity Securities

We did not repurchase shares of our common stock during the three and six months ended March 31, 2026.

​

Item 3. Defaults upon Senior Securities

None.

​

Item 4. Mine Safety Disclosures

Not applicable.

​

Item 5. Other Information

Rule 10b5-1 Trading Plans

During the three and six months ended March 31, 2026, no executive officer or director of the Company adopted or terminated any contract, instruction, or written plan for the purchase or sale of securities of the Company’s common stock that was intended to satisfy the affirmative defense conditions of Securities Exchange Act Rule 10b5-1(c) or any “non-Rule 10b5-1 trading arrangement” as defined in 17 CFR § 229.408(c).

​

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Item 6. Exhibits

(a) Exhibits

​ | ​
​ | ​
2.1* | Asset Purchase and License Agreement, dated March 27, 2026, by and between Innovative Solutions and Support, Inc., and Honeywell International Inc. (1)
​ | ​
2.2* | Asset Purchase and License Agreement, dated March 28, 2026, by and between Innovative Solutions and Support, Inc., and Honeywell International Inc. (2)
​ | ​
31.1 | Certification of Chief Executive Officer Pursuant to Rule 13a-14(a), filed herewith.
​ | ​
31.2 | Certification of Chief Financial Officer Pursuant to Rule 13a-14(a), filed herewith.
​ | ​
32.1** | Certification Pursuant to U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, furnished herewith.
​ | ​
101.INS | Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File as its XBRL tags are embedded within the Inline XBRL document.
​ | ​
101.SCH | Inline XBRL Taxonomy Extension Schema With Embedded Linkbase Documents.
​ | ​
104 | Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101).
​ | ​

​

​

(1) Incorporated by reference to Exhibit 2.1 to the Registrant’s Current Report on Form 8-K filed with the SEC on April 2, 2026.

​

(2) Incorporated by reference to Exhibit 2.2 to the Registrant’s Current Report on Form 8-K filed with the SEC on April 2, 2026.

​

* Schedules and exhibits have been omitted pursuant to Item 601(a)(5) of Regulation S-K. The Company will furnish supplementally a copy of any omitted schedule or exhibit to the SEC upon request.

​

** This certification is not deemed filed with the SEC for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date hereof, irrespective of any general incorporation language contained in such filing.
​

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SIGNATURE

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.

​

​ | ​ | ​
​ | INNOVATIVE SOLUTIONS AND SUPPORT, INC.
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Date: May 15, 2026 | By: | /s/ Jeffrey DiGiovanni
​ | ​ | Jeffrey DiGiovanni
​ | ​ | Chief Financial Officer (on behalf of Registrant and as Principal Financial Officer and Principal Accounting Officer)

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