Castellum, Inc. CTM

Institutional shares held 6.4 Million

0 calls

0 puts

Total value of holdings $6.46M

$0 calls

$0 puts

Market Cap $41.9M

41,513,100 Shares Out.

Institutional ownership 15.41%

# of Institutions 36

We take great care to ensure that the data presented and summarized in this overview for Castellum, Inc. is accurate and up-to-date, based on a comprehensive analysis of 13F filing forms for institutional ownership and form 4 filings for insider transactions. Please note that this data may differ from other sources and should not be relied upon as the sole basis for investment decisions.

Quarterly Institutional Activity in CTM

Shares Bought

Shares Sold

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Top Institutions Holding CTM

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Latest Institutional Activity in CTM

Top Purchases

Q3 2025

Revisor Wealth Management LLC Shares Held: 17.9K ($18.1K)

17.9K Shares purchased

New Holding

Q3 2025

Bay Colony Advisory Group, Inc D Shares Held: 12.6K ($12.8K)

12.6K Shares purchased

New Holding

Q3 2025

Global Retirement Partners, LLC Shares Held: 16.4K ($16.6K)

11.6K Shares purchased

241.63% Added

Q2 2025

Essex Investment Management CO LLC Shares Held: 2.09M ($2.11M)

2.09M Shares purchased

New Holding

Q2 2025

Legato Capital Management LLC Shares Held: 621K ($628K)

621K Shares purchased

New Holding

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Top Sells

Q2 2025

Inscription Capital, LLC Shares Held: 12.5K ($12.6K)

238K Shares sold

95.0% Reduced

Q1 2025

Ubs Group Ag Shares Held: 76 ($76.8)

33.4K Shares sold

99.77% Reduced

Q1 2025

Kestra Private Wealth Services, LLC Shares Held: 27.3K ($27.5K)

1K Shares sold

3.54% Reduced

Q2 2024

Citadel Advisors LLC Shares Held: 96.1K ($97.1K)

71.7K Shares sold

42.73% Reduced

Q2 2024

Black Rock Inc. Shares Held: 19.2K ($19.4K)

22.4K Shares sold

53.95% Reduced

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About CTM

Insider Transactions at CTM

Insider Transaction List

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Date	Insider	Transaction	Ownership Type	Shares Traded	Value / Price
Sep 16 2025	Jay O Wright General Counsel, Secretary	SELL Open market or private sale	Direct	50,000 -0.64%	$50,000 $1.11 P/Share
Sep 15 2025	Jay O Wright General Counsel, Secretary	SELL Open market or private sale	Direct	50,000 -0.64%	$50,000 $1.1 P/Share
Sep 12 2025	Jay O Wright General Counsel, Secretary	SELL Open market or private sale	Direct	73,000 -0.92%	$73,000 $1.12 P/Share
Sep 11 2025	Jay O Wright General Counsel, Secretary	SELL Open market or private sale	Direct	90,000 -1.12%	$90,000 $1.12 P/Share
Sep 10 2025	Jay O Wright General Counsel, Secretary	SELL Open market or private sale	Direct	70,000 -0.87%	$70,000 $1.12 P/Share
Sep 09 2025	Jay O Wright General Counsel, Secretary	SELL Open market or private sale	Direct	150,000 -1.82%	$150,000 $1.12 P/Share
Sep 08 2025	Jay O Wright General Counsel, Secretary	SELL Open market or private sale	Direct	250,227 -2.95%	$250,227 $1.12 P/Share
Sep 05 2025	Jay O Wright General Counsel, Secretary	SELL Open market or private sale	Direct	46,473 -0.55%	$46,473 $1.08 P/Share
Sep 03 2025	Mark C Fuller	SELL Open market or private sale	Direct	500,000 -7.56%	$500,000 $1.12 P/Share
Aug 28 2025	Jay O Wright General Counsel, Secretary	SELL Open market or private sale	Direct	24,000 -0.28%	$24,000 $1.05 P/Share
Aug 27 2025	Jay O Wright General Counsel, Secretary	SELL Open market or private sale	Direct	40,000 -0.47%	$40,000 $1.04 P/Share
Aug 26 2025	Jay O Wright General Counsel, Secretary	SELL Open market or private sale	Direct	40,000 -0.46%	$40,000 $1.04 P/Share
Aug 22 2025	Jay O Wright General Counsel, Secretary	SELL Open market or private sale	Direct	45,000 -0.52%	$45,000 $1.04 P/Share
Aug 21 2025	Charles Thomas Mc Millen Director	BUY Exercise of conversion of derivative security	Direct	125,000 +28.34%	$0 $0.21 P/Share
Aug 19 2025	Jay O Wright General Counsel, Secretary	SELL Open market or private sale	Direct	126,000 -1.43%	$126,000 $1.05 P/Share
Aug 18 2025	Jay O Wright General Counsel, Secretary	SELL Open market or private sale	Direct	225,000 -2.49%	$225,000 $1.08 P/Share
May 19 2025	Mark C Fuller	SELL Open market or private sale	Direct	500,000 -7.03%	$500,000 $1.05 P/Share
May 19 2025	Jay O Wright General Counsel, Secretary	SELL Open market or private sale	Direct	259,400 -2.79%	$259,400 $1.07 P/Share
May 19 2025	Jay O Wright General Counsel, Secretary	SELL Other acquisition or disposition	Direct	240,600 -2.53%	$240,600 $1.04 P/Share
Mar 06 2025	Jay O Wright General Counsel, Secretary	SELL Open market or private sale	Direct	135,000 -1.4%	$135,000 $1.34 P/Share

View All Transactions

Last 12 Months Summary

Buy / Acquisition

225K Shares

From 1 Insiders

Exercise of conversion of derivative security	225K shares

Sell / Disposition

3.83M Shares

From 4 Insiders

Other acquisition or disposition	291K shares
Open market or private sale	3.54M shares

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Castellum, Inc. CTM

Quarterly Institutional Activity in CTM

Top Institutions Holding CTM

Latest Institutional Activity in CTM

Top Purchases

Top Sells

About CTM

Insider Transactions at CTM

Insider Transaction List

Last 12 Months Summary

Track Institutional and Insider Activities on CTM

Institutional Portfolio Updates

Insider Trading

News