Fuller Mark C sold CTM
September 3, 2025 · Form 4 insider transaction
Fuller Mark C sold 500,000 shares of Castellum, Inc. at $1.12 per share, a transaction worth $560.0K. The trade was recorded as open-market sale and disclosed on an SEC Form 4, filed 0 days after the transaction.
Direction
Disposed (sell-side)
Shares
500,000
Price
$1.12
Total value
$560.0K
InsiderFuller Mark C
Role—
CompanyCastellum, Inc. (CTM)
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateSeptember 3, 2025
Filing dateSeptember 3, 2025
Shares owned after6,113,659
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
Includes (a) 6,047,519 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.; Effective May 28, 2025, Mr. Fuller ceased to be a member of the Company's board of directors.; Effective June 12, 2025, Mr. Fuller ceased to be an affiliate of the Company.