Andrew Merriman bought $31k of CTM
Chief Operating Officer at Castellum, Inc.. 50,000 shares at an average of $0.62, traded Sep 9, 2026, filed Sep 9, 2026.
Score components
- +20RoleCOO
- +5Trade size$31k at market
- +3Relative to holdingsHoldings up 9%
- 0Price contextNo price history yet
- 0ClusterNo other insider buying within 14 days
- 0Repeat buyingFirst buy in 90 days
- 0Track recordToo few past buys to judge (0 with prices)
What happened after comparable buys
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001877939-26-000079, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Sep 9, 2026 | POpen-market purchase Common Stock | +40,000 | $0.62 | $25k | 578,531 | 34 d ago |
| Sep 9, 2026 | POpen-market purchase Common Stock | +10,000 | $0.62 | $6,200 | 588,531 | 34 d ago |
Related signals
Other insiders at Castellum, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 48Moderate | Castellum, Inc. | David T Bell Chief Financial Officer | $747 1,396 shares | +8% | |
| 38Weak | Castellum, Inc. | Glen R Ives President | $910 1,700 shares | +1% | |
| 43Moderate | Castellum, Inc. | Andrew Merriman Chief Operating Officer | $747 1,396 shares | +0% | |
| 41Moderate | Castellum, Inc. | Tammy L Martin General Counsel and Secretary | $747 1,396 shares | +9% | |
| 20Weak | CTMsell Castellum, Inc. | Charles Thomas McMillen director | $21k 30,000 shares | -11% | |
| 51Moderate | Castellum, Inc. | Glen R Ives President | $1,231 2,000 shares | +1% | |
| 46Moderate | Castellum, Inc. | Andrew Merriman Chief Operating Officer | $1,285 2,000 shares | +0% | |
| 49Moderate | Castellum, Inc. | Glen R Ives President | $6,649 10,000 shares | +5% | |
| 26Weak | CTMsell Castellum, Inc. | Charles Thomas McMillen director | $44k 55,000 shares | -17% | |
| 41Moderate | Castellum, Inc. | Andrew Merriman Chief Operating Officer | $2,395 3,000 shares | +1% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.