Ticker | Value | Shares | Price | Security | Type | Insider | Title | Return | Flags | Date |
|---|---|---|---|---|---|---|---|---|---|---|
| No transactions found | ||||||||||
Mark C. Fuller currently holds 6,113,659 shares of Castellum, Inc. (CTM), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Mark C. Fuller has been a net buyer of CTM stock. They have purchased $90.4M and sold $89.4M worth of shares.
Mark C. Fuller's most recent insider trade was on Sep 3, 2025, when they sold 500,000 shares at $1.12 per share.
Mark C. Fuller serves as Executive at Castellum, Inc. (CTM). They have executed 8 insider transactions totaling $179.8M over their tenure at the company.
Mark C. Fuller holds the position of Executive at Castellum, Inc., where they are responsible for executive-level decision-making and strategic oversight. They have been associated with the company for 4 years and currently hold a stake valued at $0.
Mark C. Fuller has shown a buying trading pattern, with $90.4M in total purchases and $89.4M in total sales across all transactions. Their most recent activity indicates a tendency to accumulate shares.
The largest transaction by Mark C. Fuller was on Nov 30, 2022, when they sold $76.5M worth of CTM shares. This transaction involved 9,544 shares at $8017.00 per share.
Mark C. Fuller currently owns 6,113,659 shares of Castellum, Inc. (CTM), with an estimated value of $0. This stake represents their equity holdings accumulated through purchases, awards, and option exercises.
All of Mark C. Fuller's SEC Form 4 insider trading filings are tracked on this page. Each transaction links directly to the official SEC EDGAR filing. Mark C. Fuller has 8 Form 4 filings on record as an insider at Castellum, Inc..
Set alerts for Mark C. Fuller and 40,000+ other insiders.