SEC filing – odaterad – ctm-20251031.htm

ctm-20251031 0001877939 False 0001877939 2025-10-31 2025-10-31

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 and Exchange Act of 1934
Date of Report (Date of earliest event reported): October 31, 2025
CASTELLUM, INC.
(Exact name of Registrant as specified in its charter)

Nevada 001-41526 27-4079982
(State or other jurisdiction
of incorporation)
(Commission
File Number)
(IRS Employer
Identification No.)

1934 Old Gallows Road, Suite 350
Vienna, VA 22182
(Address of principal executive offices, including zip code)
(703) 752-6157
(Registrant’s telephone number, including area code)
Check the appropriate box below if the 8-K filing is intended to simultaneously satisfy the filing obligations of the registrant under any of the following provisions:

☐ Written communication 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 240.13(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 $0.0001 per share CTM NYSE American LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).
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 8.01 Other Events
On October 31, 2025, Castellum, Inc. announced the award of a $66.2 million full and open contract to its SSI subsidiary. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits.
(d) Exhibits .

Exhibit No. Exhibit Title
99.1 Press Release dated October 31 , 2025

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

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

CASTELLUM, INC.

Date: October 31, 2025 By: /s/ Glen R. Ives
Name: Glen R. Ives
Title: Chief Executive Officer (Principal Executive Officer)