CTM

EX-99.1

2 exhibit991may82026.htm

EX-99.1

Document

EXHIBIT 99.1

Castellum Announces First Quarter 2026 Financial Results

Revenue Increase of 23% Driven by Ramp Up of Long-Term Contracts Won in 2025; Enters Second Quarter with a Record Backlog of $273.3 Million

VIENNA, Va., May 8, 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 its financial results for the three-month period (“Q1”) ended March 31, 2026.

Q1 2026 Financial Highlights

•Revenues of $14.3 million, up 23% as compared to $11.7 million in Q1 2025.

•Gross profit of $5.1 million, up 11% as compared to $4.6 million in Q1 2025.

•Adjusted EBITDA* was $0.4 million, compared to $0.08 million in Q1 2025.

•Net loss was $0.4 million (or $0.00 per basic and diluted share), improved from a net loss of $1.2 million (or $0.01 per basic and diluted share) in Q1 2025.

•Cash and cash equivalents as of March 31, 2026 was $15.8 million, as compared to $14.9 million at December 31, 2025.

•No long-term debt; the remaining long-term obligations were paid off during the quarter.

* Q1 2026 Adjusted EBITDA excludes certain non-cash expenses, including stock-based compensation of $0.8 million and depreciation and amortization of $0.3 million, as compared to stock-based compensation of $1.2 million and depreciation and amortization of $0.4 million in Q1 2025. See the reconciliation to non-GAAP Adjusted EBITDA chart below.

Q1 2026 Operational Highlights

•Total backlog reached a record $273.3 million as of March 31, 2026, up from $265 million at December 31, 2025.

•Qualified pipeline totaled $938 million as of March 31, 2026, up from $817 million at December 31, 2025, reflecting a substantial increase in identified opportunities.

Glen Ives, President and Chief Executive Officer of Castellum, commented, “Our strong Q1 2026 results reflect the momentum we built throughout a standout 2025, when we secured over $219 million in contracts across three major, long‑term prime wins and deepened our relationships with the U.S. Navy and other key federal customers. The 23% revenue increase for Q1 2026 was driven by production ramp‑up of these new contract wins. We ended the quarter with a record backlog of approximately $273 million, which provides us with multi‑year revenue visibility. We currently expect to recognize approximately 16% of this backlog over the next 12 months and approximately 49% over the next 24 months, with the remainder recognized thereafter. Similarly, the pipeline of qualified opportunities continues to increase, and we had $938 million in identified opportunities at quarter-end, which is a testament of the strength of our strategy and the competitiveness of our offerings for complex, mission‑critical programs in cybersecurity, electronic warfare, and advanced engineering.”

EXHIBIT 99.1

David Bell, Chief Financial Officer of Castellum, noted, “Q1 2026 was our best first quarter ever and second best of any quarter on record in terms of revenue and delivered a significantly improved bottom line. Strong year-over-year revenue growth, combined with our ongoing efforts to improve production efficiencies, resulted in increased gross profit for the quarter, while our gross margin of 35.4% was somewhat affected by changes in contract mix and type. During the quarter, we also completed the payoff of our remaining long-term debt, which lowered our interest expense substantially. We ended the period with a debt‑free balance sheet and $15.8 million in cash, which give us the flexibility to invest in growth initiatives while maintaining a solid financial profile.”

Discussing the go-forward strategy, Mr. Ives concluded, “We have entered Phase 3 of Castellum’s evolution, and our priorities are clear. We are focused on building on our strong organic growth momentum, fully leveraging our new CMMC Level 2 C3PAO certification as a key competitive differentiator in the DoD market, federal cyber and mission‑critical programs, and selectively exploring compelling M&A opportunities that meet our criteria. In parallel, we will continue investing in mission-critical technologies and capabilities which will enable us to further expand our markets, client base, and capture emerging growth opportunities. As we progress through 2026, we remain focused on disciplined execution to position Castellum for sustainable, long-term growth and enhanced shareholder value.”

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 expertis

ctm-202603040001877939False00018779392026-03-042026-03-04

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): March 4, 2026

CASTELLUM, INC.

(Exact name of Registrant as specified in its charter)

Nevada001-4152627-4079982 (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 classTrading Symbol(s)Name of each exchange on which registered Common stock, par value $0.0001 per shareCTMNYSE 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 2.02 Results of Operations and Financial Condition. On March 4, 2026, Castellum, Inc. (the “Company”) issued a press release announcing certain financial results for its year ended December 31, 2025. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

This information is intended to be furnished under Item 2.02 of Form 8-K, “Results of Operations and Financial Condition” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.Item 2.03.

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

Exhibit No.Exhibit Title 99.1Press Release dated March 4, 2026

104Cover 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: March 5, 2026By:/s/ Glen R. Ives Name:Glen R. Ives Title:Chief Executive Officer (Principal Executive Officer)

ctm-202511070001877939False00018779392025-11-072025-11-07

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): November 7, 2025

CASTELLUM, INC.

(Exact name of Registrant as specified in its charter)

Nevada001-4152627-4079982 (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 classTrading Symbol(s)Name of each exchange on which registered Common stock, par value $0.0001 per shareCTMNYSE 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 2.02 Results of Operations and Financial Condition. On November 7, 2025, Castellum, Inc. (the “Company”) issued a press release announcing certain financial results for the three months ended September 30, 2025. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

This information is intended to be furnished under Item 2.02 of Form 8-K, “Results of Operations and Financial Condition” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.Item 2.03

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

Exhibit No.Exhibit Title 99.1Press Release dated November 7, 2025

104Cover 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: November 7, 2025By:/s/ Glen R. Ives Name:Glen R. Ives Title:Chief Executive Officer (Principal Executive Officer)