Welcome to our dedicated page for Castellum SEC filings (Ticker: CTM), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Castellum, Inc. filings document a Nevada public company that provides cybersecurity, electronic warfare, software engineering, and related technology services to federal government customers. Its Form 8-K reports cover operating results, contract awards, CMMC Level 2 C3PAO certification, debt retirement, executive employment arrangements, officer appointments, and shareholder communications.
Proxy materials describe annual meeting matters, board elections, stockholder voting procedures, executive compensation, and governance practices. The filings also identify Castellum as an emerging growth company and provide formal disclosure around capital structure, subsidiaries, and material events tied to its defense-focused services business.
Castellum, Inc. (CTM) reported a new business win, announcing the award of a $66.2 million full and open contract to its SSI subsidiary. The company attached a detailed press release as Exhibit 99.1 for additional context. This update signals a significant addition to SSI’s contracted work, though specific scope, term, and performance milestones were not detailed in the notice.
Castellum, Inc. (CTM) reported under Item 8.01 that it will attend the 2025 Maxim Growth Summit. The company announced this on October 20, 2025, and attached the full press release as Exhibit 99.1, which is incorporated by reference.
This is a conference participation update. The filing does not include financial results, guidance, or transaction details.
Castellum, Inc. announced that subsidiary Specialty Systems, Inc. has added IT services to its GSA Multiple Award Schedule contract. The company reported the update under Other Events on October 14, 2025, and furnished a press release as Exhibit 99.1. This expands the subsidiary’s offerings available through the government purchasing vehicle.
Castellum, Inc. has filed a Form S-8 registration statement to register securities for issuance under the Castellum, Inc. Second Amended 2021 Stock Incentive Plan. This filing allows the company to issue shares to employees, directors, and other service providers as equity-based compensation under the updated plan terms.
The company incorporates by reference its most recent Annual Report on Form 10-K for the year ended December 31, 2024, its Quarterly Reports on Form 10-Q for the quarters ended March 31, 2025 and June 30, 2025, numerous Current Reports on Form 8-K, and its definitive proxy materials. The filing also describes Nevada law and company charter provisions that provide indemnification and insurance protection for directors and officers, and it includes standard undertakings to update or deregister the securities in future amendments.
Castellum, Inc. has filed a Form S-8 registration statement to register securities for issuance under the Castellum, Inc. Second Amended 2021 Stock Incentive Plan. This filing allows the company to issue shares to employees, directors, and other service providers as equity-based compensation under the updated plan terms.
The company incorporates by reference its most recent Annual Report on Form 10-K for the year ended December 31, 2024, its Quarterly Reports on Form 10-Q for the quarters ended March 31, 2025 and June 30, 2025, numerous Current Reports on Form 8-K, and its definitive proxy materials. The filing also describes Nevada law and company charter provisions that provide indemnification and insurance protection for directors and officers, and it includes standard undertakings to update or deregister the securities in future amendments.
Castellum, Inc. has filed a Form S-8 registration statement to register securities issuable under the Castellum, Inc. 2025 Employee Stock Purchase Plan. This allows employees to acquire company stock through the new plan once the registration is effective.
The filing incorporates by reference the company’s recent Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, multiple Current Reports on Form 8-K, and its proxy materials and common stock description. Castellum also details Nevada law and its own charter and bylaw provisions that provide indemnification and insurance protection for directors and officers, and confirms there is no pending or threatened litigation involving them as of the filing date.
Castellum, Inc. has filed a Form S-8 registration statement to register securities issuable under the Castellum, Inc. 2025 Employee Stock Purchase Plan. This allows employees to acquire company stock through the new plan once the registration is effective.
The filing incorporates by reference the company’s recent Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, multiple Current Reports on Form 8-K, and its proxy materials and common stock description. Castellum also details Nevada law and its own charter and bylaw provisions that provide indemnification and insurance protection for directors and officers, and confirms there is no pending or threatened litigation involving them as of the filing date.
Jay O. Wright, a director and reported 10% owner of Castellum, Inc. (CTM) and serving as General Counsel/Secretary and EVP-Strategy, reported two open-market sales totaling 100,000 shares. He sold 50,000 shares on 09/15/2025 at $1.10 and 50,000 shares on 09/16/2025 at $1.11, reducing his direct beneficial ownership from 7,843,973 (implied) to 7,743,973 shares following the transactions. The Form 4 is signed by the reporting person.
Jay O. Wright, a director and reported 10% owner of Castellum, Inc. (CTM) and serving as General Counsel/Secretary and EVP-Strategy, reported two open-market sales totaling 100,000 shares. He sold 50,000 shares on 09/15/2025 at $1.10 and 50,000 shares on 09/16/2025 at $1.11, reducing his direct beneficial ownership from 7,843,973 (implied) to 7,743,973 shares following the transactions. The Form 4 is signed by the reporting person.
Castellum, Inc. director and 10% owner Jay O. Wright reported three open-market sales of common stock at $1.12 per share on 09/10/2025, 09/11/2025, and 09/12/2025. The sales totaled 233,000 shares, reducing his direct beneficial ownership from 8,006,973 shares to 7,843,973. The Form 4 is signed and filed by the reporting person.
Castellum, Inc. (CTM) director and 10% owner Jay O. Wright reported three open-market sales of common stock on Sept 5, 8 and 9, 2025. He sold 46,473 shares at $1.08, 250,227 shares at $1.12 and 150,000 shares at $1.12, leaving him with 8,076,973 shares beneficially owned after the transactions.
Castellum, Inc. (CTM) insider sale and status changes reported on Form 4. Mark C. Fuller disposed of 500,000 shares of Common Stock on 09/03/2025 at $1.12 per share, leaving him with 6,113,659 shares beneficially owned. The filing states those holdings include 6,047,519 shares held by The Mark Chappelle Fuller Revocable Trust, 50,000 shares held by the Janice Lynn Dudley Revocable Trust, and 16,140 shares held directly by Mr. Fuller. The form also discloses that Mr. Fuller ceased to be a member of the company’s board effective May 28, 2025 and ceased to be an affiliate effective June 12, 2025. The report is signed by Mr. Fuller and shows a single reporting person filing.
Jay O. Wright, General Counsel and Secretary of Castellum, Inc. (CTM), reported sales of company common stock on August 27–28, 2025. He sold 40,000 shares on 08/27/2025 at $1.04 per share and sold 24,000 shares on 08/28/2025 at $1.046 per share, a total of 64,000 shares. After the first sale his direct holdings were 8,547,673 shares and after the second sale 8,523,673 shares. The Form 4 is signed by the reporting person.