Insider · CIK 0002036177
Andrew Merriman
Files at CTM (Castellum, Inc.). First filing Mar 18, 2026, latest Oct 1, 2026.
In brief
Andrew Merriman files SEC Form 4 as COO at CTM (Castellum, Inc.). Since Mar 18, 2026, Andrew Merriman has reported 5 open-market buys worth $36k and 0 open-market sells worth $0, the latest filed on Oct 1, 2026.
A track record needs three past buys with six months of prices behind them; Andrew Merriman has 2, so none is measured yet.
The newest scored trade: bought $747 of CTM on Oct 1, 2026, filed Oct 1, 2026, scored 43 (moderate). In the last 12 months: 5 buys worth $36k and 0 sells worth $0.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
CTM: Castellum, Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 43Moderate | Castellum, Inc. | $747 1,396 shares | +0% | +16% from low-52% from high | |
| 28Weak | CTMbuy Castellum, Inc. | $31k 50,000 shares | +9% | - | |
| 38Weak | Castellum, Inc. | $736 1,202 shares | +0% | +35% from low-51% from high | |
| 46Moderate | Castellum, Inc. | $1,285 2,000 shares | +0% | 0% from low-58% from high | |
| 41Moderate | Castellum, Inc. | $2,395 3,000 shares | +1% | 0% from low-47% from high |
Transactions
Every row this insider has filed, 9 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Oct 1, 2026 | CTM Castellum, Inc. | POpen-market purchase Common Stock | +1,396 | $0.54 | $747 | 589,927 | 12 d ago |
| Sep 9, 2026 | CTM Castellum, Inc. | POpen-market purchase Common Stock | +40,000 | $0.62 | $25k | 578,531 | 34 d ago |
| Sep 9, 2026 | CTM Castellum, Inc. | POpen-market purchase Common Stock | +10,000 | $0.62 | $6,200 | 588,531 | 34 d ago |
| Jul 1, 2026 | CTM Castellum, Inc. | POpen-market purchase Common Stock | +1,202 | $0.61 | $736 | 538,531 | Jul 2, 2026 |
| Mar 31, 2026 | CTM Castellum, Inc. | AGrant or award Common Stock | +1,329 | $0.45 | $604 | 537,329 | Mar 31, 2026 |
| Mar 27, 2026 | CTM Castellum, Inc. | POpen-market purchase Common Stock | +2,000 | $0.64 | $1,285 | 536,000 | Mar 27, 2026 |
| Mar 18, 2026 | CTM Castellum, Inc. | POpen-market purchase Common Stock | +3,000 | $0.80 | $2,395 | 534,000 | Mar 18, 2026 |
| Nov 11, 2025 | CTM Castellum, Inc. | AGrant or award Stock Optionsderivative | +275,000 | $0.00 | $0 | 275,000 | Nov 13, 2025 |
| Jan 22, 2025 | CTM Castellum, Inc. | AGrant or award Stock Optionsderivative | +325,000 | $1.07 | $348k | 325,000 | Jan 24, 2025 |
Questions about Andrew Merriman
Answered from the filings on this page, as of the latest one.
Is Andrew Merriman buying or selling?
In the last 12 months Andrew Merriman reported 5 open-market buys worth $36k and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $747 of CTM on Oct 1, 2026. Grants, option exercises and tax withholding are not counted.
How did Andrew Merriman's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Andrew Merriman has 2.
Where does Andrew Merriman file Form 4?
Andrew Merriman has filed Form 4 at CTM (Castellum, Inc.) as Chief Operating Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
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.