WallStreetZenWallStreetZen

NYSEMKT: CTM
Castellum Inc Stock Ownership - Who owns Castellum?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Castellum Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Jay O. WrightGeneral Counsel Secretary2025-12-1930,000$1.05
$31.50kSell
Jay O. WrightGeneral Counsel Secretary2025-12-1612,000$1.07
$12.88kSell
Jay O. WrightGeneral Counsel Secretary2025-12-156,000$1.10
$6.62kSell
Jay O. WrightGeneral Counsel Secretary2025-12-1211,000$1.16
$12.75kSell
Jay O. WrightGeneral Counsel Secretary2025-12-1150,000$1.16
$58.05kSell
Jay O. WrightGeneral Counsel Secretary2025-12-10127,000$1.21
$153.29kSell
Jay O. WrightGeneral Counsel Secretary2025-12-0135,000$1.05
$36.75kSell
Jay O. WrightGeneral Counsel Secretary2025-11-2818,000$1.06
$18.99kSell
Jay O. WrightGeneral Counsel Secretary2025-11-1710,000$1.16
$11.56kSell
Jay O. WrightGeneral Counsel Secretary2025-11-1490,000$1.15
$103.50kSell

1 of 4

CTM insiders have sold more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when CTM insiders and whales buy or sell their stock.

CTM Shareholders

What type of owners hold Castellum Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Jay O. Wright17.16%16,232,966$16.56MInsider
Mark C. Fuller15.88%15,027,112$15.33MInsider
Essex Investment Management Co LLC2.28%2,153,617$2.20MInstitution
Emil Kaunitz2.11%1,999,856$2.04MInsider
Vanguard Group Inc1.35%1,277,915$1.30MInstitution
Geode Capital Management LLC0.76%723,527$738.00kInstitution
Meridian Wealth Management LLC0.72%684,600$698.29kInstitution
Legato Capital Management LLC0.66%621,409$633.84kInstitution
Andrew Merriman0.56%531,000$541.62kInsider
Goldman Sachs Group Inc0.39%368,632$376.00kInstitution

1 of 3

CTM vs Information Technology Service Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
CTM8.99%36.72%Net SellingNet Selling
MGRT0.00%0.00%
SLNH5.16%38.96%Net SellingNet Selling
CSPI29.10%30.63%Net Buying
JFU0.01%0.00%
View Top Information Technology Service Stocks

Castellum Stock Ownership FAQ

Who owns Castellum?

Castellum (NYSEMKT: CTM) is owned by 8.99% institutional shareholders, 36.72% Castellum insiders, and 54.29% retail investors. Jay O. Wright is the largest individual Castellum shareholder, owning 16.23M shares representing 17.16% of the company. Jay O. Wright's Castellum shares are currently valued at $16.56M.

If you're new to stock investing, here's how to buy Castellum stock.
©2026 WallStreetZen
Company
AboutNewsBlogStock Investing FAQPlansPrivacy PolicyTerms of ServiceCancellation & RefundsPerformanceHelp GuidesContactTwitterYouTubeNewsletter
Stock Tools
Top Performing AnalystsStock ScreenerStock ForecastTrending StocksStrong Buy StocksHighest Earnings StocksBest Dividend Paying StocksStatisticsStock Market SectorsStock Market IndustriesHow to Buy Stocks Online
Stock Ideas
Buy The DipBiggest Stock Gainers TodayBiggest Stock Losers Today52 Week High Stocks52 Week Low StocksMost Active Stocks TodayMost Undervalued StocksBest Penny Stocks to Buy NowBest Stocks Under $5Best Stocks Under $10
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.