ISSC

INNOVATIVE SOLUTIONS AND SUPPORT, INC._February 12, 2026 0000836690false00008366902026-02-122026-02-12 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 12, 2026

INNOVATIVE SOLUTIONS AND SUPPORT, INC.

(Exact name of registrant as specified in its charter)

Pennsylvania 001-41503 23-2507402

(State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

​ 720 Pennsylvania Drive Exton, Pennsylvania 19341 (Address of principal executive offices) (Zip Code) Registrant’s telephone number, including area code (610) 646-9800 Not applicable

(Former name or former address, if changed since last report)

​ Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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 is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter). 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.         ☐ ​ ​ ​ ​

​

Item 2.02.Results of Operations and Financial Condition. On February 12, 2026, Innovative Solutions and Support, Inc. dba Innovative Aerosystems and its subsidiaries issued a press release announcing its financial results for its fiscal first quarter for the three-month period ended December 31, 2025. A copy of that press release is attached as Exhibit 99.1 to this report and incorporated herein by reference. The information in this report (including Exhibit 99.1) is being furnished pursuant to Item 2.02 and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act. Item 9.01.Financial Statements and Exhibits. (d)           Exhibits.

Exhibit No. ​ ​ ​ Description

99.1 Press Release, dated February 12, 2026, announcing financial results for the fiscal first quarter ended   December 31, 2025.

104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

​ ​ ​

​

SIGNATURE

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

INNOVATIVE SOLUTIONS AND SUPPORT, INC.

Date: February 12, 2026 By: /s/ Jeffrey DiGiovanni

Jeffrey DiGiovanni

Chief Financial Officer

​ ​ ​ ​

INNOVATIVE SOLUTIONS AND SUPPORT, INC._December 18, 2025 0000836690false00008366902025-12-182025-12-18 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 18, 2025

INNOVATIVE SOLUTIONS AND SUPPORT, INC.

(Exact name of registrant as specified in its charter)

Pennsylvania 001-41503 23-2507402

(State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

​ 720 Pennsylvania Drive Exton, Pennsylvania 19341 (Address of principal executive offices) (Zip Code) Registrant’s telephone number, including area code (610) 646-9800 Not applicable

(Former name or former address, if changed since last report)

​ Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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 is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter). 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.         ☐ ​ ​ ​ ​

​

Item 2.02.Results of Operations and Financial Condition. On December 18, 2025, Innovative Solutions and Support, Inc. dba Innovative Aerosystems and its subsidiaries issued a press release announcing its financial results for its fiscal fourth quarter and fiscal 2025 year ended September 30, 2025. A copy of that press release is attached as Exhibit 99.1 to this report and incorporated herein by reference. The information in this report (including Exhibit 99.1) is being furnished pursuant to Item 2.02 and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act. Item 9.01.Financial Statements and Exhibits. (d)           Exhibits.

Exhibit No. ​ ​ ​ Description

99.1 Press Release, dated December 18, 2025, announcing financial results for the fiscal fourth quarter and fiscal 2025 year ended September 30, 2025.

104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

​ ​ ​

​

SIGNATURE

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

INNOVATIVE SOLUTIONS AND SUPPORT, INC.

Date: December 18, 2025 By: /s/ Jeffrey DiGiovanni

Jeffrey DiGiovanni

Chief Financial Officer

​ ​ ​ ​

INNOVATIVE SOLUTIONS AND SUPPORT, INC._August 14, 2025 0000836690false00008366902025-08-142025-08-14 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 14, 2025

INNOVATIVE SOLUTIONS AND SUPPORT, INC.

(Exact name of registrant as specified in its charter)

Pennsylvania 001-41503 23-2507402

(State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

​ 720 Pennsylvania Drive Exton, Pennsylvania 19341 (Address of principal executive offices) (Zip Code) Registrant’s telephone number, including area code (610) 646-9800 Not applicable

(Former name or former address, if changed since last report)

​ Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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 is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter). 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.         ☐ ​ ​ ​ ​

​

Item 2.02.Results of Operations and Financial Condition. On August 14, 2025, Innovative Solutions and Support, Inc. issued a press release announcing its financial results for its fiscal third quarter ended June 30, 2025. A copy of that press release is attached as Exhibit 99.1 to this report and incorporated herein by reference. The information in this report (including Exhibit 99.1) is being furnished pursuant to Item 2.02 and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act. Item 9.01.Financial Statements and Exhibits. (d)           Exhibits.

Exhibit No.

Description

99.1 Press Release, dated August 14, 2025, announcing financial results for the fiscal third quarter ended June 30, 2025.

104 Cover Page Interactive Data File (embedded within the Inline XBRL document).

​ ​ ​

​

SIGNATURE

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

INNOVATIVE SOLUTIONS AND SUPPORT, INC.

Date: August 14, 2025 By: /s/ Jeffrey DiGiovanni

Jeffrey DiGiovanni

Chief Financial Officer

​ ​ ​ ​