Form 8-K
8-K — Castellum, Inc.
Accession: 0001877939-26-000078
Filed: 2026-09-09
Period: 2026-09-09
CIK: 0001877939
SIC: 8742 (SERVICES-MANAGEMENT CONSULTING SERVICES)
Item: Other Events
Item: Financial Statements and Exhibits
Documents
8-K — ctm-20260909.htm (Primary)
EX-99.1 (exhibit991september92026.htm)
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8-K
8-K (Primary)
Filename: ctm-20260909.htm · Sequence: 1
ctm-20260909
0001877939False00018779392026-09-092026-09-09
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): September 9, 2026
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 September 9, 2026, Castellum, Inc. issued a press release announcing that its management will present at a conference on September 15, 2026. 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 September 9, 2026
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: September 9, 2026 By: /s/ Glen R. Ives
Name: Glen R. Ives
Title: Chief Executive Officer (Principal Executive Officer)
EX-99.1
EX-99.1
Filename: exhibit991september92026.htm · Sequence: 2
Document
Exhibit 99.1
Castellum to Present at the H.C. Wainwright Global Investment Conference on September 15
VIENNA, Va., Sept. 09, 2026 (GLOBE NEWSWIRE) -- Castellum, Inc. (NYSE-American: CTM) (“Castellum” “CTM”, “we” or the “Company”), a cybersecurity, electronic warfare, and software services company focused on the federal government, today announced that its President and CEO, Glen Ives, and CFO, David Bell, will be presenting at the H.C. Wainwright Global Investment Conference on Tuesday, September 15, 2026 at the Lotte New York Palace Hotel.
Management will deliver a company presentation and be available for one-on-one investor meetings throughout the event. Investors interested in scheduling a meeting may contact their H.C. Wainwright representative or send an email to lena.cati@theequitygroup.com.
Event Details
Date: Tuesday, September 15, 2026
Webcast: Castellum Inc’s presentation will be available on H.C. Wainwright’s conference website beginning Friday, September 11 at 7:00 am E.T.
About Castellum, Inc.
Castellum, Inc. (NYSE-American: CTM) is a technology company focused on leveraging the power of information technology to help solve our Nation's most pressing national security challenges. CTM provides U.S. government and commercial clients with Cybersecurity, Software Development, Systems Engineering, Information / Electronic Warfare, Program Support, and Data Analytics services. It also offers subject matter expertise in artificial intelligence / machine learning, 5G technologies, model-based systems engineering, program management, information assurance, intelligence analysis, and CMMC compliance. In addition to constantly innovating and enhancing its organic capabilities, Castellum is executing strategic acquisitions of firms that share our passionate commitment to U.S. national security and have a history of bringing exceptional value to their clients. For more information visit: https://castellumus.com.
Contacts:
Castellum, Inc.
1934 Old Gallows Road, Suite 350
Vienna, VA 22182
Investor Relations:
The Equity Group
Lena Cati
(212) 836-9611
lena.cati@theequitygroup.com
Val Ferraro
(212) 836-9633
val.ferraro@theequitygroup.com
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