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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1877939	Castellum Inc.	CTM	Services-Management Consulting Services (8742)	274079982

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1944544	C Mark Fuller	1934 Old Gallows Road Suite 350 Vienna VA 22182		Yes	No	Yes	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Disposition	2025-03-05	50,000	$0.00	7,613,659	No	4	J	Direct
Common Stock	Disposition	2025-03-05	275,000	$1.49	7,338,659	No	4	S	Direct
Common Stock	Disposition	2025-03-06	225,000	$1.33	7,113,659	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	J	Direct
No	4	S	Direct
No	4	S	Direct

Footnotes

Removes 50,000 shares of common stock previously reported on Form 4 on June 14, 2023 which is owned by Reporting Person's children who are now adults.
Includes (a) 7,547,519 common shares held by The Mark Chappelle Fuller Revocable Trust, Mark Fuller, TTEE, (b) 50,000 common shares held by Janice Lynn Dudley Revocable Trust, Janice Lynn Dudley TTEE, and (c) 16,140 shares held by Mark C. Fuller.
Includes (a) 7,272,519 common shares held by The Mark Chappelle Fuller Revocable Trust, Mark Fuller, TTEE, (b) 50,000 common shares held by Janice Lynn Dudley Revocable Trust, Janice Lynn Dudley TTEE, and (c) 16,140 common shares held by Mark C. Fuller.
Includes (a) 7,047,519 common shares held by The Mark Chappelle Fuller Revocable Trust, Mark Fuller, TTEE, (b) 50,000 common shares held by Janice Lynn Dudley Revocable Trust, Janice Lynn Dudley TTEE, and (c) 16,140 common shares held by Mark Fuller.