Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date |
Reported DateTime |
Company | Symbol | Insider Relationship |
Shares Traded |
Average Price |
Total Amount |
Shares Owned |
Filing |
2025-03-05 Sale |
2025-03-06 5:03 pm |
Castellum Inc. | CTM | Fuller Mark C Director 10% Owner |
500,000 | $1.4205 | $710,275 | 7,163,659 (Direct) |
View |
2023-06-13 Purchase |
2023-06-14 06:01 am |
Castellum Inc. | CTM | Fuller Mark C CEO, President 10% Owner |
1,000 | $0.6495 | $650 | 7,663,659 (Direct) |
View |
2022-12-02 Purchase(M) |
2022-12-09 3:48 pm |
Castellum Inc. | CTM | Fuller Mark C Chief Executive Officer 10% Owner |
1,294 | $0.96291 | $1,246 | 7,662,659 (Direct) |
View |
2022-11-28 Purchase(A)(M) |
2022-12-02 5:34 pm |
Castellum Inc. | CTM | Fuller Mark C Chief Executive Officer 10% Owner |
4,302 | $0.66481 | $2,860 | 7,651,821 (Direct) |
View |
2022-11-30 Purchase(A)(M) |
2022-12-02 5:32 pm |
Castellum Inc. | CTM | Fuller Mark C Chief Executive Officer 10% Owner |
9,544 | $0.84 | $8,017 | 7,661,365 (Direct) |
View |
2022-11-30 Sale(M) |
2022-12-01 06:06 am |
Castellum Inc. | CTM | Fuller Mark C Chief Executive Officer 10% Owner |
9,544 | $0.84 | $8,017 | 7,661,365 (Direct) |
View |
2022-11-28 Sale(M) |
2022-11-30 06:57 am |
Castellum Inc. | CTM | Fuller Mark C Chief Executive Officer 10% Owner |
4,302 | $0.66481 | $2,860 | 7,651,821 (Direct) |
View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date |
Reported DateTime |
Exercisable Expiration |
Company | Symnbol | Insider Relationship |
Shares Traded |
Conversion Price |
Shares Owned |
Filing |
2025-03-05 Other |
2025-03-06 5:03 pm |
N/A N/A |
Castellum Inc. | CTM | Fuller Mark C Director 10% Owner |
50,000 | $0 | 7,163,659 (Direct) |
View |
2023-03-22 Option Award |
2023-03-24 4:16 pm |
2023-03-22 2030-03-21 |
Castellum Inc. | CTM | Fuller Mark C CEO, President 10% Owner |
532,931 | $0 | 532,931 (Direct) |
View |
2022-10-17 Option Award |
2022-10-20 1:22 pm |
2022-10-17 2029-10-16 |
Castellum Inc. | CTM | Fuller Mark C Chief Executive Officer 10% Owner |
500,000 | $0 | 9,363,453 (Direct) |
View |
2022-10-17 Conversion |
2022-10-20 1:22 pm |
N/A N/A |
Castellum Inc. | CTM | Fuller Mark C Chief Executive Officer 10% Owner |
9,027,000 | $0 | 9,363,453 (Indirect) |
View |
Ownership |
2022-10-12 9:10 pm |
N/A N/A |
Castellum Inc. | CTM | Fuller Mark C Chief Executive Officer, Chair |
0 | $0 | 8,863,453 (Indirect) |
View |