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) 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.
Castellum, Inc. director and 10% owner Jay O. Wright reported two open-market dispositions of Common Stock in a Form 4. He sold 45,000 shares on 08/22/2025 and 40,000 shares on 08/26/2025 at a reported price of $1.04 per share, reducing his beneficial ownership to 8,587,673 shares after the second sale. The filing is signed and dated 08/26/2025.
C. Thomas McMillen, a director of Castellum, Inc. (CTM), exercised fully vested stock options on 08/20/2025 and received 125,000 shares of common stock at an exercise price of $0.212 per share. The Form 4 filed 08/21/2025 reports the cash exercise of those options and shows 316,015 shares beneficially owned following the transaction. The options exercised were exercisable immediately and expire 06/30/2031.
Insider sales by Castellum, Inc. director and officer Jay O. Wright. The Form 4 shows Mr. Wright sold 225,000 shares on 08/18/2025 at $1.08 and 126,000 shares on 08/19/2025 at $1.05, reducing his direct beneficial ownership to 8,672,673 shares. He is identified as a director, 10% owner, and General Counsel/Secretary. The form is signed 08/20/2025. No derivative transactions or additional explanations are included.
Castellum, Inc. reported that on August 19, 2025 it and Tradewinds Networks, Inc. jointly announced the execution of a reseller agreement. This means Castellum is formalizing a relationship under which Tradewinds, Castellum, or both can resell certain products or services, although specific commercial terms are not described here.
The company filed this report to formally disclose the agreement and attached a related press release as Exhibit 99.1 for additional detail. Castellum’s common stock continues to trade on the NYSE American under the symbol CTM.
Castellum, Inc. (CTM) filed a Form 144 notifying the proposed sale of 500,000 shares of Common Stock through First Georgetown Securities Inc with an aggregate market value of $640,000 and an approximate sale date of 08/18/2025 on the NYSE. The filing lists total shares outstanding of 930,900,584. It discloses the acquisition history for the securities to be sold: purchases and conversions on 07/22/2019, 05/02/2020, and a merger-related acquisition on 06/10/2019, totaling recorded amounts of 168,215, 305,000, and 26,785 shares respectively. The filer also reported a sale on 05/19/2025 of 259,400 shares for gross proceeds of $278,673.20. The filer attests there is no undisclosed material adverse information.
Form 144 notice for Castellum, Inc. (CTM): The filer intends to sell 500,000 shares of common stock through First Georgetown Securities Inc. on the NYSE, with an approximate sale date of 08/18/2025 and an aggregate market value listed at $640,000.00. The filing shows 930,900,584 shares outstanding. The shares were acquired in a private placement from Castellium Inc. (acquisition dated 06/15/2019) and the payment is recorded as cash on 06/14/2019. The filing also discloses a sale on 05/19/2025 of 500,000 shares for gross proceeds of $518,025.48. The notice includes the standard representation that the seller is unaware of undisclosed material adverse information.
Castellum, Inc. reported that purchasers exercised 3,673,666 warrants, resulting in the issuance of 3,673,666 shares of common stock and total gross proceeds of $4,481,873. The exercises were conducted pursuant to prior agreements and the company agreed to pay Maxim Group LLC a cash placement fee equal to 3.5% of the aggregate proceeds, totaling $156,866. The company issued a press release on August 14, 2025 announcing these warrant exercises and filed that release as Exhibit 99.1.
The disclosure is limited to the aggregate exercise, proceeds received, and the placement agent fee; no additional financial statements, use of proceeds, or effects on outstanding share count beyond the issued shares are provided in this filing.