Castellum, Inc. (CTM) insider trading
Castellum, Inc. insiders have made 4 open-market purchases worth $3k since Oct 1, 2026, by 4 different insiders. The latest: Tammy L. Martin (Officer) bought $747, filed Oct 1, 2026, scored 24 out of 100. The biggest: $910 by Glen R. Ives, filed Oct 1, 2026.
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Insider purchases
| Filed | Insider | Stake | Score | Bought | 1 week | 1 month |
|---|---|---|---|---|---|---|
| Oct 1 Form 4 (opens sec.gov) |
Tammy L. MartinOfficerOfficer · Near 52-week low · Penny stock: hard to trade | +9% stake | 24 | $747 1,396 at $0.54 |
— | — |
| Oct 1 Form 4 (opens sec.gov) |
David T. BellCFOCFO · Near 52-week low · Penny stock: hard to trade | +8% stake | 34 | $747 1,396 at $0.54 |
— | — |
| Oct 1 Form 4 (opens sec.gov) |
Andrew MerrimanCOOCOO · Near 52-week low · Penny stock: hard to trade | +0% stake | 22 | $747 1,396 at $0.54 |
— | — |
| Oct 1 Form 4 (opens sec.gov) |
Glen R. IvesPresidentPresident · Near 52-week low · Penny stock: hard to trade | +1% stake | 26 | $910 1,700 at $0.54 |
— | — |
Insiders who bought CTM
- Tammy L. Martin Officer
- David T. Bell CFO
- Andrew Merriman COO
- Glen R. Ives President
Questions
Are insiders buying CTM stock?
Yes. In the last 90 days, 4 open-market purchases were filed, worth $3k.
Who bought CTM stock most recently?
Tammy L. Martin, Officer, bought 1,396 shares for $747 (Form 4 (opens sec.gov), filed Oct 1, 2026).
How does InsiderBeacon score an insider buy?
Out of 100, from who bought, how much their stake grew, the size of the trade, whether other insiders bought within ten days, where the price sat in its 52-week range, and whether it was a first or a routine buy. The score is fixed when the filing arrives. The formula and the research behind it.
Insiders are also buying, same industry
Data as of Oct 1, 2026, from SEC EDGAR Form 4 filings: open-market purchases (code P) of $25,000 or more, and open-market sales. Every row links to its filing. Scores summarise what a filing says (how the score works); outcomes are hypothetical, from the first close after the filing, and past results don't predict future ones. Disclaimer