CMPX · ISSUER CIK 1738021
Compass Therapeutics, Inc.
Between Aug 1, 2026 and Oct 29, 2026, 1 Compass Therapeutics, Inc. insiders reported $21K of open-market purchases and $0.00 of sales on SEC Form 4. The largest buyer was Lerner Neil (Chief Accounting Officer), with $21K.
↗1 insiders filed
Original Form 4 filings from Aug 1, 2026 to Oct 29, 2026. No open-market sales in the window.
$21KInsider buying
$0.00Insider selling
+$21KNet open-market
Oct 2, 2026Latest filing
| Ticker | Insider | Type | Owned | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 2, 202608:00 | Oct 1, 2026 | CMPX | Chief Accounting Officer | P · Buy | $0.92 | +20,000 | 420,000 | +5% | +$18K | -63.6% | -17.8% |
| Sep 25, 202608:01 | Sep 24, 2026 | CMPX | Chief Accounting Officer | P · Buy | $1.14 | +2,500 | 400,000 | +1% | +$3K | -54.9% | -33.7% |