CTM · ISSUER CIK 1877939
Castellum, Inc.
Between Aug 1, 2026 and Oct 29, 2026, 4 Castellum, Inc. insiders reported $34K of open-market purchases and $0.00 of sales on SEC Form 4. The largest buyer was Merriman Andrew (Chief Operating Officer), with $32K.
↗4 insiders filed
Original Form 4 filings from Aug 1, 2026 to Oct 29, 2026. No open-market sales in the window.
$34KInsider buying
$0.00Insider selling
+$34KNet open-market
Oct 1, 2026Latest filing
| Ticker | Insider | Type | Owned | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 202616:09 | Oct 1, 2026 | CTM | General Counsel and Secretary | P · Buy | $0.54 | +1,396 | 16,427 | +9% | +$747.14 | -32.8% | -5.6% |
| Oct 1, 202616:09 | Oct 1, 2026 | CTM | Chief Financial Officer, Treasurer | P · Buy | $0.54 | +1,396 | 18,651 | +8% | +$747.14 | -32.8% | -5.6% |
| Oct 1, 202616:08 | Oct 1, 2026 | CTM | Chief Operating Officer | P · Buy | $0.54 | +1,396 | 589,927 | +0% | +$747.14 | -32.8% | -5.6% |
| Oct 1, 202616:08 | Oct 1, 2026 | CTM | President, Director, Chief Executive Officer | P · Buy | $0.54 | +1,700 | 202,578 | +1% | +$909.84 | -32.8% | -5.6% |
| Sep 9, 202616:02 | Sep 9, 2026 | CTM | Chief Operating Officer | P · Buy | $0.62 | +50,000 | 588,531 | +9% | +$31K | -25.2% | -18.5% |