CTM Form 144 Notice — 500K Shares via First Georgetown, $640K Value

Rhea-AI Filing Summary

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.

Positive

• Full transaction details disclosed including broker, number of shares, aggregate market value, exchange and approximate sale date
• Acquisition history provided showing the shares came from a private placement and payment method (cash)

Negative

• Filer identification fields appear incomplete (CIK and submission contact information are not present in the provided content)
• Date inconsistency noted: acquisition dated 06/15/2019 while payment date is listed as 06/14/2019 with no explanation

Insights

Financial Analyst

TL;DR: Notice documents a planned sale of 500,000 CTM shares on NYSE, a small fraction of shares outstanding with modest market value.

The filing shows an intended disposition of 500,000 common shares with an aggregate market value of $640,000, representing roughly 0.054% of the reported 930.9 million shares outstanding. The shares were acquired in a private placement in mid‑2019 and are now being offered through a broker. The previously reported sale on 05/19/2025 of 500,000 shares for $518,025.48 indicates recent liquidity events by related parties. These facts are straightforward and suggest routine insider or affiliate selling rather than a material corporate event.

Compliance/Risk Analyst

TL;DR: Filing contains required Rule 144 disclosures but omits some filer identifiers and shows a date/payment inconsistency to note.

The notice includes broker, class, amount, outstanding shares and planned sale date, meeting primary Rule 144 disclosure elements. However, the filer CIK and contact fields appear blank in the provided content, which are normally required for clear identification. Also, the acquisition date is 06/15/2019 while the payment date is recorded as 06/14/2019; the filing states both dates but does not explain the sequencing. The seller’s representation about lacking undisclosed material information is present, preserving the certification required by the form.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common stock	First Georgetown Securities Inc Diagonal Rd STE 200 Alexandria VA 22314	500000	640000.00	930900584	08/18/2025	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common stock	06/15/2019	Private Placement	Castellium Inc			500000	06/14/2019	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
MARK C FULLER & JANICE L DUDLEY 9722 MEYER POINT DR Potomac MD 20854	Common	05/19/2025	500000	518025.48

144: Remarks and Signature

Remarks

Date of Notice

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the Form 144 for Castellum, Inc. (CTM) disclose?

The form discloses an intended sale of 500,000 common shares on the NYSE via First Georgetown Securities Inc. with an approximate sale date of 08/18/2025 and aggregate market value of $640,000.00.

How many CTM shares are outstanding according to the filing?

The filing lists 930,900,584 shares outstanding.

When and how were the shares being sold acquired?

The 500,000 shares were acquired in a private placement from Castellium Inc. with an acquisition date shown as 06/15/2019 and payment recorded as cash on 06/14/2019.

Has the filer sold CTM shares recently?

Yes. The filing records a sale on 05/19/2025 of 500,000 common shares for gross proceeds of $518,025.48 by Mark C Fuller & Janice L Dudley.

Which broker is handling the proposed sale?

The broker listed is First Georgetown Securities Inc located in Alexandria, VA.