Castellum Inc SEC Filings

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. (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.

Castellum, Inc. furnished a current report stating it has issued a press release announcing financial results for the three months ended June 30, 2025. The press release is attached to the filing as Exhibit 99.1 and the filing also references an interactive data file as Exhibit 104. The registrant's common stock trades under the symbol CTM on NYSE American.

The 8-K provides notice that the press release contains the reported results but does not include the financial figures within the body of the filing. The company states this information is being furnished under Item 2.02 and is not being treated as filed or incorporated by reference into other securities filings except by specific reference.