Castellum Ownership & Insider Activity

Castellum (CTM) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 17.6% of shares outstanding. Institutional investors hold 6.5%. Over the past 90 days, insiders made 4 purchases worth $3K.

Shares Outstanding

94.781M

Shares Float

86.222M

Insider Shares Owned

16.674M

Insider % Owned

17.6%

Institutional Shares Held

6.193M

Institutional % Held

6.5%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

$3K total

Sales (90d)

Net Activity

Net Buying

Net Value (90d)

$3K

Castellum Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Jul 1, 2026	Andrew Merriman	CHIEF OPERATING OFFICER	BUY	1.202K	$0.61	$736
Jul 1, 2026	David T Bell	CHIEF FINANCIAL OFFICER	BUY	1.202K	$0.61	$736
Jul 1, 2026	Tammy L Martin	GENERAL COUNSEL AND SECRETARY	BUY	1.202K	$0.61	$736
Jul 1, 2026	Glen R Ives	PRESIDENT	BUY	1.262K	$0.61	$772
Mar 27, 2026	Glen R Ives	PRESIDENT	BUY	2.000K	$0.62	$1K
Mar 27, 2026	Andrew Merriman	CHIEF OPERATING OFFICER	BUY	2.000K	$0.64	$1K
Mar 26, 2026	Glen R Ives	PRESIDENT	BUY	10.000K	$0.66	$7K
Mar 25, 2026	C. Thomas McMillen	DIRECTOR	SELL	30.000K	$0.70	$21K
Mar 18, 2026	C. Thomas McMillen	DIRECTOR	SELL	55.000K	$0.80	$44K
Mar 18, 2026	Andrew Merriman	CHIEF OPERATING OFFICER	BUY	3.000K	$0.80	$2K