CTM
Castellum, Inc.$0.49+0.01 (+1.92%)Prev Close$0.48·MCap$57.7M·P/E—·Vol138.7K·Yield—
▲
Buys (12M)
13
$48.7K
▼
Sells (12M)
8
$768.3K
◆
Net Activity
Net Seller
$719.6K
●
Active Insiders
6
last 12 mo
Over the past 12 months, insider activity at Castellum, Inc. (CTM) has been dominated by selling, with 13 insider purchases totaling $48.7K and 8 insider sales totaling $768.3K. The most recent insider transaction was by MARTIN TAMMY L (officer: General Counsel and Secretary), who purchased $747.14 worth of shares on Oct 1, 2026. Castellum, Inc. operates in the Technology sector, within the Information Technology Services industry, with a market cap of $57.7M.
CTM Insider Trading Activity
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Oct 1, 2026 | MARTIN TAMMY L | officer: General Counsel and Secretary | Buy | 1,396 | $0.54 | $747.14 | 16,427 |
| Oct 1, 2026 | Ives Glen R | director, officer, other: President | Buy | 1,700 | $0.54 | $909.84 | 202,578 |
| Oct 1, 2026 | Merriman Andrew | officer: Chief Operating Officer | Buy | 1,396 | $0.54 | $747.14 | 589,927 |
| Oct 1, 2026 | Bell David T | officer, other: Chief Financial Officer | Buy | 1,396 | $0.54 | $747.14 | 18,651 |
| Sep 9, 2026 | Merriman Andrew | officer: Chief Operating Officer | Buy | 50,000 | $0.62 | $31.0K | 588,531 |
| Jul 2, 2026 | MARTIN TAMMY L | officer: General Counsel and Secretary | Buy | 1,202 | $0.61 | $735.62 | 15,031 |
| Jul 2, 2026 | Merriman Andrew | officer: Chief Operating Officer | Buy | 1,202 | $0.61 | $735.62 | 538,531 |
| Jul 2, 2026 | Ives Glen R | officer, other: President | Buy | 1,262 | $0.61 | $772.34 | 200,878 |
| Jul 2, 2026 | Bell David T | officer, other: Chief Financial Officer | Buy | 1,202 | $0.61 | $735.62 | 17,255 |
| Mar 27, 2026 | Merriman Andrew | officer: Chief Operating Officer | Buy | 2,000 | $0.64 | $1.3K | 536,000 |
| Mar 27, 2026 | Ives Glen R | officer, other: President | Buy | 2,000 | $0.62 | $1.2K | 199,616 |
| Mar 27, 2026 | McMillen Charles Thomas | director | Sell | 30,000 | $0.70 | $21.1K | 231,015 |
| Mar 26, 2026 | Ives Glen R | officer, other: President | Buy | 10,000 | $0.66 | $6.6K | 197,616 |
| Mar 20, 2026 | McMillen Charles Thomas | director | Sell | 55,000 | $0.80 | $44.1K | 261,015 |
| Mar 18, 2026 | Merriman Andrew | officer: Chief Operating Officer | Buy | 3,000 | $0.80 | $2.4K | 534,000 |
| Dec 19, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 30,000 | $1.05 | $31.5K | 0 |
| Dec 15, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 18,000 | $1.08 | $19.5K | 0 |
| Dec 10, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 188,000 | $1.19 | $224.1K | 0 |
| Nov 28, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 53,000 | $1.05 | $55.7K | 0 |
| Nov 14, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 100,000 | $1.15 | $115.1K | 0 |
| Nov 11, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 220,000 | $1.17 | $257.2K | 0 |
| Sep 15, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 100,000 | $1.11 | $110.5K | 0 |
| Sep 10, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 233,000 | $1.12 | $261.0K | 0 |
| Sep 5, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 446,700 | $1.12 | $498.4K | 0 |
| Sep 3, 2025 | Fuller Mark C | Insider | Sell | 500,000 | $1.12 | $560.0K0.5% OS | 0 |
| Aug 27, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 64,000 | $1.04 | $66.7K | 0 |
| Aug 22, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 85,000 | $1.04 | $88.4K | 0 |
| Aug 18, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 351,000 | $1.07 | $375.3K | 0 |
| May 19, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 259,400 | $1.07 | $277.6K | 0 |
| May 19, 2025 | Fuller Mark C | Director | Sell | 500,000 | $1.05 | $524.0K0.5% OS | 0 |
| Mar 5, 2025 | Fuller Mark C | Director | Sell | 500,000 | $1.42 | $710.3K0.5% OS | 0 |
| Mar 5, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 500,000 | $1.43 | $717.5K0.5% OS | 0 |
| Sep 4, 2024 | WRIGHT JAY O | General Counsel, Secretary | Buy | 272,300 | $0.16 | $44.7K | 0 |
| Sep 3, 2024 | WRIGHT JAY O | General Counsel, Secretary | Buy | 44,400 | $0.17 | $7.3K | 0 |
| Aug 29, 2024 | WRIGHT JAY O | General Counsel, Secretary | Buy | 61,597 | $0.16 | $10.1K | 0 |
| Aug 28, 2024 | WRIGHT JAY O | General Counsel, Secretary | Buy | 97,903 | $0.16 | $16.0K | 0 |
| Aug 14, 2024 | WRIGHT JAY O | General Counsel, Secretary | Buy | 115,240 | $0.14 | $16.6K | 0 |
| Jun 20, 2024 | WRIGHT JAY O | General Counsel, Secretary | Buy | 124,220 | $0.18 | $22.7K | 0 |
| Jun 13, 2023 | Fuller Mark C | CEO, President | Buy | 1,000 | $0.65 | $649.50 | 0 |
| Mar 31, 2023 | WRIGHT JAY O | See Remarks | Buy | 18,400 | $1.08 | $19.9K | 0 |
| Mar 29, 2023 | WRIGHT JAY O | See Remarks | Buy | 5,595 | $1.13 | $6.3K | 0 |
| Mar 28, 2023 | WRIGHT JAY O | See Remarks | Buy | 7,900 | $1.13 | $8.9K | 0 |
| Mar 24, 2023 | WRIGHT JAY O | See Remarks | Buy | 4,900 | $1.10 | $5.4K | 0 |
| Mar 22, 2023 | WRIGHT JAY O | See Remarks | Buy | 9,400 | $1.07 | $10.1K | 0 |
| Mar 21, 2023 | Champoux Bernard S | Director | Buy | 62,920 | $1.19 | $75.0K | 0 |
| Mar 17, 2023 | WRIGHT JAY O | See remarks | Buy | 16,000 | $1.04 | $16.6K | 0 |
| Mar 15, 2023 | WRIGHT JAY O | See Remarks | Buy | 17,845 | $1.05 | $18.7K | 0 |
| Mar 14, 2023 | WRIGHT JAY O | See Remarks | Buy | 3,200 | $1.08 | $3.5K | 0 |
| Mar 10, 2023 | WRIGHT JAY O | See Remarks | Buy | 10,600 | $11043.00 | $117.06M | 0 |
| Dec 20, 2022 | Kaunitz Emil | Director | Buy | 5,585 | $5353.00 | $29.90M | 0 |
Showing 1–50 of 64
1 / 2
CTM Insider Buying Activity
The following table shows recent insider purchases of Castellum, Inc. (CTM) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Oct 1, 2026 | MARTIN TAMMY L | officer: General Counsel and Secretary | Buy | 1,396 | $0.54 | $747.14 | 16,427 |
| Oct 1, 2026 | Ives Glen R | director, officer, other: President | Buy | 1,700 | $0.54 | $909.84 | 202,578 |
| Oct 1, 2026 | Merriman Andrew | officer: Chief Operating Officer | Buy | 1,396 | $0.54 | $747.14 | 589,927 |
| Oct 1, 2026 | Bell David T | officer, other: Chief Financial Officer | Buy | 1,396 | $0.54 | $747.14 | 18,651 |
| Sep 9, 2026 | Merriman Andrew | officer: Chief Operating Officer | Buy | 50,000 | $0.62 | $31.0K | 588,531 |
| Jul 2, 2026 | MARTIN TAMMY L | officer: General Counsel and Secretary | Buy | 1,202 | $0.61 | $735.62 | 15,031 |
| Jul 2, 2026 | Merriman Andrew | officer: Chief Operating Officer | Buy | 1,202 | $0.61 | $735.62 | 538,531 |
| Jul 2, 2026 | Ives Glen R | officer, other: President | Buy | 1,262 | $0.61 | $772.34 | 200,878 |
| Jul 2, 2026 | Bell David T | officer, other: Chief Financial Officer | Buy | 1,202 | $0.61 | $735.62 | 17,255 |
| Mar 27, 2026 | Merriman Andrew | officer: Chief Operating Officer | Buy | 2,000 | $0.64 | $1.3K | 536,000 |
| Mar 27, 2026 | Ives Glen R | officer, other: President | Buy | 2,000 | $0.62 | $1.2K | 199,616 |
| Mar 26, 2026 | Ives Glen R | officer, other: President | Buy | 10,000 | $0.66 | $6.6K | 197,616 |
| Mar 18, 2026 | Merriman Andrew | officer: Chief Operating Officer | Buy | 3,000 | $0.80 | $2.4K | 534,000 |
| Sep 4, 2024 | WRIGHT JAY O | General Counsel, Secretary | Buy | 272,300 | $0.16 | $44.7K | 0 |
| Sep 3, 2024 | WRIGHT JAY O | General Counsel, Secretary | Buy | 44,400 | $0.17 | $7.3K | 0 |
| Aug 29, 2024 | WRIGHT JAY O | General Counsel, Secretary | Buy | 61,597 | $0.16 | $10.1K | 0 |
| Aug 28, 2024 | WRIGHT JAY O | General Counsel, Secretary | Buy | 97,903 | $0.16 | $16.0K | 0 |
| Aug 14, 2024 | WRIGHT JAY O | General Counsel, Secretary | Buy | 115,240 | $0.14 | $16.6K | 0 |
| Jun 20, 2024 | WRIGHT JAY O | General Counsel, Secretary | Buy | 124,220 | $0.18 | $22.7K | 0 |
| Jun 13, 2023 | Fuller Mark C | CEO, President | Buy | 1,000 | $0.65 | $649.50 | 0 |
| Mar 31, 2023 | WRIGHT JAY O | See Remarks | Buy | 18,400 | $1.08 | $19.9K | 0 |
| Mar 29, 2023 | WRIGHT JAY O | See Remarks | Buy | 5,595 | $1.13 | $6.3K | 0 |
| Mar 28, 2023 | WRIGHT JAY O | See Remarks | Buy | 7,900 | $1.13 | $8.9K | 0 |
| Mar 24, 2023 | WRIGHT JAY O | See Remarks | Buy | 4,900 | $1.10 | $5.4K | 0 |
| Mar 22, 2023 | WRIGHT JAY O | See Remarks | Buy | 9,400 | $1.07 | $10.1K | 0 |
| Mar 21, 2023 | Champoux Bernard S | Director | Buy | 62,920 | $1.19 | $75.0K | 0 |
| Mar 17, 2023 | WRIGHT JAY O | See remarks | Buy | 16,000 | $1.04 | $16.6K | 0 |
| Mar 15, 2023 | WRIGHT JAY O | See Remarks | Buy | 17,845 | $1.05 | $18.7K | 0 |
| Mar 14, 2023 | WRIGHT JAY O | See Remarks | Buy | 3,200 | $1.08 | $3.5K | 0 |
| Mar 10, 2023 | WRIGHT JAY O | See Remarks | Buy | 10,600 | $11043.00 | $117.06M | 0 |
| Dec 20, 2022 | Kaunitz Emil | Director | Buy | 5,585 | $5353.00 | $29.90M | 0 |
CTM Insider Selling Activity
The following table shows recent insider sales of Castellum, Inc. (CTM) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Mar 27, 2026 | McMillen Charles Thomas | director | Sell | 30,000 | $0.70 | $21.1K | 231,015 |
| Mar 20, 2026 | McMillen Charles Thomas | director | Sell | 55,000 | $0.80 | $44.1K | 261,015 |
| Dec 19, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 30,000 | $1.05 | $31.5K | 0 |
| Dec 15, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 18,000 | $1.08 | $19.5K | 0 |
| Dec 10, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 188,000 | $1.19 | $224.1K | 0 |
| Nov 28, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 53,000 | $1.05 | $55.7K | 0 |
| Nov 14, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 100,000 | $1.15 | $115.1K | 0 |
| Nov 11, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 220,000 | $1.17 | $257.2K | 0 |
| Sep 15, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 100,000 | $1.11 | $110.5K | 0 |
| Sep 10, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 233,000 | $1.12 | $261.0K | 0 |
| Sep 5, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 446,700 | $1.12 | $498.4K | 0 |
| Sep 3, 2025 | Fuller Mark C | Insider | Sell | 500,000 | $1.12 | $560.0K0.5% OS | 0 |
| Aug 27, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 64,000 | $1.04 | $66.7K | 0 |
| Aug 22, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 85,000 | $1.04 | $88.4K | 0 |
| Aug 18, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 351,000 | $1.07 | $375.3K | 0 |
| May 19, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 259,400 | $1.07 | $277.6K | 0 |
| May 19, 2025 | Fuller Mark C | Director | Sell | 500,000 | $1.05 | $524.0K0.5% OS | 0 |
| Mar 5, 2025 | Fuller Mark C | Director | Sell | 500,000 | $1.42 | $710.3K0.5% OS | 0 |
| Mar 5, 2025 | WRIGHT JAY O | General Counsel, Secretary | Sell | 500,000 | $1.43 | $717.5K0.5% OS | 0 |
CTM Insiders
Bell David T
officer, other: Chief Financial Officer
Bought $1.5KSold $152.95M
3 tradesLast: Oct 1, 2026
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