Fuller Mark C sold Castellum Inc ($CTM) shares on the open market twice in the last year, totaling $1.1 million. His most recent sale occurred on September 3, 2025. These sales rank 4,727th among 11,678 insiders, below the average of $8.6 million per seller and 6.4 transactions. He made no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sept. 3, 2025 | Castellum, Inc. | $CTM | Fuller Mark C | Other | S | Common Stock | 500000 | $1.12 | 6,113,659.0000 | 77,076,129 | 7.56% | 0.65% |
| May 19, 2025 | Castellum, Inc. | $CTM | Fuller Mark C | Director | S | Common Stock | 500000 | $1.05 | 6,613,659.0000 | 77,076,129 | 7.03% | 0.65% |
| March 5, 2025 | Castellum, Inc. | $CTM | Fuller Mark C | Director | J | Common Stock | 50000 | $0.00 | 7,613,659.0000 | 77,076,129 | 0.65% | 0.06% |
| March 5, 2025 | Castellum, Inc. | $CTM | Fuller Mark C | Director | S | Common Stock | 275000 | $1.49 | 7,338,659.0000 | 77,076,129 | 3.61% | 0.36% |
| March 6, 2025 | Castellum, Inc. | $CTM | Fuller Mark C | Director | S | Common Stock | 225000 | $1.33 | 7,113,659.0000 | 77,076,129 | 3.07% | 0.29% |