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CTM Insider Trading

Insider Ownership Percentage: 29.79%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $2,711,728.84

Castellum Insider Trading History Chart

This chart shows the insider buying and selling history at Castellum by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Castellum Share Price & Price History

Current Price: $0.91
Price Change: ▲ Price Increase of +0.0219 (2.46%)
As of 02/24/2026 05:10 PM ET

This chart shows the closing price history over time for CTM up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Castellum Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
12/19/2025Jay O WrightGeneral CounselSell30,000$1.05$31,500.007,134,973View SEC Filing Icon  
12/12/2025Jay O WrightGeneral CounselSell11,000$1.16$12,760.007,182,973View SEC Filing Icon  
12/11/2025Jay O WrightGeneral CounselSell50,000$1.16$58,000.007,193,973View SEC Filing Icon  
12/10/2025Jay O WrightGeneral CounselSell127,000$1.21$153,670.007,243,973View SEC Filing Icon  
11/13/2025Jay O WrightGeneral CounselSell160,000$1.17$187,200.007,523,973View SEC Filing Icon  
11/11/2025Jay O WrightGeneral CounselSell60,000$1.18$70,800.007,683,973View SEC Filing Icon  
9/5/2025Jay O WrightGeneral CounselSell46,473$1.08$50,190.848,477,200View SEC Filing Icon  
9/3/2025Mark C FullerInsiderSell500,000$1.12$560,000.006,113,659View SEC Filing Icon  
8/19/2025Jay O WrightGeneral CounselSell126,000$1.05$132,300.008,672,673View SEC Filing Icon  
8/18/2025Jay O WrightGeneral CounselSell225,000$1.08$243,000.008,798,673View SEC Filing Icon  
5/19/2025Jay O WrightGeneral CounselSell259,400$1.07$277,558.009,023,673View SEC Filing Icon  
5/19/2025Mark C FullerDirectorSell500,000$1.05$525,000.006,613,659View SEC Filing Icon  
3/5/2025Mark C FullerDirectorSell275,000$1.49$409,750.007,338,659View SEC Filing Icon  
8/29/2024Jay O WrightGeneral CounselBuy61,597$0.16$9,855.529,809,672View SEC Filing Icon  
8/14/2024Jay O WrightGeneral CounselBuy115,240$0.14$16,133.609,650,172View SEC Filing Icon  
6/20/2024Jay O WrightGeneral CounselBuy80,610$0.18$14,509.809,491,322View SEC Filing Icon  
6/13/2023Mark C FullerCEOBuy1,000$0.65$650.007,663,659View SEC Filing Icon  
3/31/2023Jay O WrightInsiderBuy18,400$1.08$19,872.009,410,712View SEC Filing Icon  
3/28/2023Jay O WrightInsiderBuy7,900$1.13$8,927.009,386,717View SEC Filing Icon  
3/24/2023Jay O WrightInsiderBuy4,900$1.10$5,390.009,378,817View SEC Filing Icon  
3/22/2023Jay O WrightInsiderBuy9,400$1.07$10,058.009,373,917View SEC Filing Icon  
3/21/2023John Francis CampbellDirectorBuy62,920$1.19$74,874.80126,537View SEC Filing Icon  
3/17/2023Jay O WrightInsiderBuy16,000$1.04$16,640.009,364,517View SEC Filing Icon  
3/14/2023Jay O WrightInsiderBuy3,200$1.08$3,456.009,330,672View SEC Filing Icon  
3/10/2023Jay O WrightInsiderBuy10,600$11,043.00$117,055,800.009,327,472View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for Castellum (NYSEAMERICAN:CTM)

3.39% of Castellum stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at CTM by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Castellum Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
2/18/2026Quadrature Capital Ltd217,471$0.20M0.0%+290.3%0.230%Search for SEC Filing on Google Icon
2/13/2026Inspire Advisors LLC41,700$38K0.0%N/A0.044%Search for SEC Filing on Google Icon
2/13/2026Essex Investment Management Co. LLC2,114,029$1.91M0.3%-1.8%2.234%Search for SEC Filing on Google Icon
2/10/2026Goldman Sachs Group Inc.353,526$0.32M0.0%-4.1%0.374%Search for SEC Filing on Google Icon
2/9/2026Geode Capital Management LLC773,724$0.70M0.0%+6.9%0.818%Search for SEC Filing on Google Icon
2/6/2026Legato Capital Management LLC680,945$0.62M0.1%+9.6%0.720%Search for SEC Filing on Google Icon
2/4/2026Meridian Wealth Management LLC745,150$0.67M0.0%+8.8%0.788%Search for SEC Filing on Google Icon
11/17/2025Centiva Capital LP122,228$0.13M0.0%N/A0.129%Search for SEC Filing on Google Icon
11/14/2025Two Sigma Investments LP77,565$85K0.0%+135.1%0.082%Search for SEC Filing on Google Icon
11/14/2025Bridgeway Capital Management LLC94,794$0.10M0.0%N/A0.100%Search for SEC Filing on Google Icon
11/7/2025Vanguard Group Inc.1,277,915$1.39M0.0%+21.5%1.374%Search for SEC Filing on Google Icon
11/6/2025Savvy Advisors Inc.227,000$0.25M0.0%+18.8%0.244%Search for SEC Filing on Google Icon
11/6/2025Essex Investment Management Co. LLC2,153,617$2.35M0.4%+3.0%2.316%Search for SEC Filing on Google Icon
11/4/2025Meridian Wealth Management LLC684,600$0.75M0.0%+11.0%0.736%Search for SEC Filing on Google Icon
8/14/2025Jane Street Group LLC194,733$0.20M0.0%N/A0.209%Search for SEC Filing on Google Icon
8/12/2025XTX Topco Ltd135,796$0.14M0.0%+107.6%0.158%Search for SEC Filing on Google Icon
8/8/2025Meridian Wealth Management LLC616,800$0.65M0.0%+6.2%0.717%Search for SEC Filing on Google Icon
8/8/2025Geode Capital Management LLC599,198$0.63M0.0%+43.2%0.696%Search for SEC Filing on Google Icon
8/4/2025Savvy Advisors Inc.191,100$0.20M0.0%N/A0.222%Search for SEC Filing on Google Icon
5/15/2025Cubist Systematic Strategies LLC67,680$72K0.0%N/A0.097%Search for SEC Filing on Google Icon
5/8/2025XTX Topco Ltd65,419$69K0.0%N/A0.094%Search for SEC Filing on Google Icon
4/29/2025Bank of New York Mellon Corp600,002$0.64M0.0%-51.1%0.858%Search for SEC Filing on Google Icon
4/17/2025Inscription Capital LLC250,000$0.27M0.0%N/A0.357%Search for SEC Filing on Google Icon
2/14/2025Jane Street Group LLC449,001$0.90M0.0%+2,180.2%0.642%Search for SEC Filing on Google Icon
2/12/2025Geode Capital Management LLC299,643$0.60M0.0%+49.9%0.428%Search for SEC Filing on Google Icon
2/12/2025PKS Advisory Services LLC42,221$84K0.0%N/A0.060%Search for SEC Filing on Google Icon
2/6/2025Meridian Wealth Management LLC589,400$1.18M0.1%-2.5%0.843%Search for SEC Filing on Google Icon
2/4/2025Bank of New York Mellon Corp1,227,824$2.46M0.0%N/A1.756%Search for SEC Filing on Google Icon
8/15/2024Armistice Capital LLC3,547,987$0.66M0.0%-23.8%6.691%Search for SEC Filing on Google Icon
5/20/2024Virtu Financial LLC103,288$27K0.0%+82.2%0.195%Search for SEC Filing on Google Icon
2/8/2024Meridian Wealth Management LLC503,500$0.15M0.0%+123.8%1.056%Search for SEC Filing on Google Icon
1/18/2024Inscription Capital LLC250,000$74K0.0%N/A0.524%Search for SEC Filing on Google Icon
10/17/2023Meridian Wealth Management LLC225,000$52K0.0%+44.2%0.473%Search for SEC Filing on Google Icon
8/2/2023Meridian Wealth Management LLC156,000$78K0.0%-16.7%0.369%Search for SEC Filing on Google Icon
7/19/2023Magnus Financial Group LLC250,000$0.13M0.0%N/A0.592%Search for SEC Filing on Google Icon
2/9/2023Almanack Investment Partners LLC.50,000$63K0.0%N/A2.404%Search for SEC Filing on Google Icon
2/1/2023Kestra Private Wealth Services LLC74,804$94K0.0%N/A3.596%Search for SEC Filing on Google Icon
1/31/2023Kestra Advisory Services LLC73,519$93K0.0%N/A3.535%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Castellum logo
Castellum, Inc. provides services in the areas of cybersecurity, information technology, electronic and information warfare, and information operations. Its services include intelligence analysis, software development, software engineering, program management, strategic and mission planning, information assurance, cybersecurity and policy support, data analytics, and model based systems engineering services. It serves customers in the federal government, financial services, healthcare, and other data application sectors. The company is based in Bethesda, Maryland.
Read More on Castellum

Today's Range

Now: $0.91
Low: $0.88
High: $0.93

50 Day Range

MA: $0.96
Low: $0.80
High: $1.06

52 Week Range

Now: $0.91
Low: $0.75
High: $1.67

Volume

494,301 shs

Average Volume

1,413,217 shs

Market Capitalization

$86.38 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

N/A

Who are the company insiders with the largest holdings of Castellum?

Castellum's top insider shareholders include:
  1. Jay O Wright (General Counsel)
  2. Mark C Fuller (Director)
  3. Mark C Fuller (Insider)
Learn More about top insider investors at Castellum.

Who are the major institutional investors of Castellum?

Castellum's top institutional shareholders include:
  1. Essex Investment Management Co. LLC — 2.23%
  2. Geode Capital Management LLC — 0.82%
  3. Meridian Wealth Management LLC — 0.79%
  4. Legato Capital Management LLC — 0.72%
  5. Goldman Sachs Group Inc. — 0.37%
  6. Quadrature Capital Ltd — 0.23%
Learn More about top institutional investors of Castellum stock.

Which institutional investors are selling Castellum stock?

Within the last quarter, CTM stock was sold by these institutional investors:
  1. Essex Investment Management Co. LLC
  2. Goldman Sachs Group Inc.
During the last year, company insiders that have sold Castellum company stock include:
  1. Jay O Wright (General Counsel)
  2. Mark C Fuller (Director)
  3. Mark C Fuller (Insider)
Learn More investors selling Castellum stock.

Which institutional investors are buying Castellum stock?

Within the last quarter, CTM stock was bought by institutional investors including:
  1. Quadrature Capital Ltd
  2. Meridian Wealth Management LLC
  3. Legato Capital Management LLC
  4. Geode Capital Management LLC
  5. Inspire Advisors LLC