StockCIK 1877939

Castellum, Inc. (CTM): Insider Trades and Fund Holdings

In the past 12 months, Castellum, Inc. insiders reported 5 open-market purchases worth $34K and 0 sales worth $0.

5Insider buys, 12 months

$34KBought by insiders, 12 months

$0Sold by insiders, 12 months

0Tracked funds holding

Recent insider trades

Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Oct 1, 2026.

Recent CTM insider trades
Filed	Traded	Insider	Role	Type	Shares	Price ($)	Value	Holding	Filing
Oct 1	Oct 1	Glen R. IvesPresident	President	▲ BUY	1,700	0.5353	$910	+0.8%	Form 4 ↗
Oct 1	Oct 1	Andrew MerrimanCOO	COO	▲ BUY	1,396	0.5351	$747	+0.2%	Form 4 ↗
Oct 1	Oct 1	David T. BellCFO	CFO	▲ BUY	1,396	0.5351	$747	+8.1%	Form 4 ↗
Oct 1	Oct 1	Tammy L. MartinGeneral Counsel	General Counsel	▲ BUY	1,396	0.5351	$747	+9.3%	Form 4 ↗
Sep 9	Sep 9	Andrew MerrimanCOO	COO	▲ BUY	50,000	0.6194	$31K	+9.3%	Form 4 ↗

Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings

Insiders who traded in the past year

Insider	Role	Buys	Bought	Sold	Latest
Glen R. Ives	President	1	$910	$0	Oct 1, 2026
Andrew Merriman	COO	2	$32K	$0	Oct 1, 2026
David T. Bell	CFO	1	$747	$0	Oct 1, 2026
Tammy L. Martin	General Counsel	1	$747	$0	Oct 1, 2026

Reading these numbers

Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →