Form4.ai tracks every SEC insider trade in real time. See every CTM insider filing with a free account — no card.
See every CTM insider filing — free account, no card.
Free accountCastellum, Inc. (CTM) has 5 SEC Form 4 insider filings on record in the last 90 days. That includes 5 insider purchases totalling $34K. Most recent filing: Oct. 1, 2026.
Open-market value, last 90 days
Form 4 filings by type, last 90 days
| Date | Insider | Trade | Value | Price since buy |
|---|---|---|---|---|
| Oct 1, 2026 SEC filing | MARTIN TAMMY L General Counsel and Secretary | Bought | $747 | -9.4% 30D |
| Oct 1, 2026 SEC filing | Bell David T Chief Financial Officer | Bought | $747 | -9.4% 30D |
| Oct 1, 2026 SEC filing | Merriman Andrew Chief Operating Officer | Bought | $747 | -9.4% 30D |
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Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.