Compass Therapeutics Inc is a clinical-stage oncology-focused biopharmaceutical company that develops proprietary antibody therapeutics to engage the immune system to treat multiple human diseases. The company's scientific focus is on the relationship between angiogenesis, the immune system, and tumor growth. It is engaged in drug discovery by leveraging its proprietary antibody discovery engine to target the immune system and identify optimal combinations empirically broadly. Through StitchMabs and common light chain platforms, these combinatorial insights can be rapidly translated into tailored bispecifics with monoclonal-like manufacturability. Its pipeline is comprised of the following product candidates; CTX-009, CTX-471, CTX-10726, VEGF-A, Bispecific, and CTX-8371.
https://www.compasstherapeutics.comSEC filings for CMPX on EDGAR
No Form 4 activity for CMPX in the last 90 days.
20 Form 4 filings on record, the earliest from Dec 10, 2024, newest first.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Grant or award | Common Stock | 25,000 | $1.89 | $47K | ||
| Neil Lerner - Officer | Grant or award | Common Stock | 15,000 | $1.89 | $28K | |
| Tax withholding / forfeiture | Common Stock | 36,687 | $6.52 | $239K | ||
| Tax withholding / forfeiture | Common Stock | 46,777 | $5.35 | $250K | ||
| Barry Shin - Officer | Grant or award | Common Stock | 125,000 | $5.17 | $646K | |
| Barry Shin - Officer | Grant or award | Stock Option (Right to Buy) | 670,000 | $0.00 | - | |
| Cynthia Sirard - Officer | Grant or award | STOCK OPTION (RIGHT TO BUY) | 1,000,000 | $0.00 | - | |
| Grant or award | Common Stock | 250,000 | $5.17 | $1.29M | ||
| Grant or award | Stock Option (Right to Buy) | 2,000,000 | $0.00 | - | ||
| Grant or award | STOCK OPTION (RIGHT TO BUY) | 1,000,000 | $0.00 | - | ||
| Richard S. Lindahl - Director | Grant or award | Stock Option (Right to Buy) | 90,000 | $0.00 | - | |
| Grant or award | Stock Option (Right to Buy) | 90,000 | $0.00 | - | ||
| Neil Lerner - Officer | Grant or award | Common Stock | 62,500 | $5.17 | $323K | |
| Neil Lerner - Officer | Grant or award | Stock Option (Right to Buy) | 435,000 | $0.00 | - | |
| Mary Ann Gray - Director | Grant or award | Stock Option (Right to Buy) | 90,000 | $0.00 | - | |
| James P. Boylan - Director | Grant or award | Stock Option (Right to Buy) | 90,000 | $0.00 | - | |
| Carl L. Gordon - Director | Grant or award | Stock Option (Right to Buy) | 90,000 | $0.00 | - | |
| Philip Ferneau - Director | Grant or award | Stock Option (Right to Buy) | 90,000 | $0.00 | - | |
| Grant or award | Common Stock | 150,000 | $5.17 | $776K | ||
| Grant or award | Stock Option (Right to Buy) | 720,000 | $0.00 | - | ||
| Tax withholding / forfeiture | Common Stock | 44,025 | $4.83 | $213K | ||
| Carl L. Gordon - Director | Open-market sale | Common Stock | 3,571,428 | $1.59 | $5.68M | |
| ORBIMED ADVISORS LLC - Director | Open-market sale | Common Stock | 3,571,428 | $1.59 | $5.68M | |
| Barry Shin - Officer | Grant or award | Common Stock | 400,000 | $1.65 | $660K | |
| Barry Shin - Officer | Grant or award | Stock Option (Right to Buy) | 400,000 | $0.00 | - |
Compass Therapeutics, Inc. (CMPX) has filed no insider reports in the last 90 days. The most recent on record is dated 2026-04-29. The full record for CMPX runs to 20 Form 4 filings, the earliest from 2024-12-10. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
No insider purchases of CMPX were filed in the last 90 days.
No insider sales of CMPX were filed in the last 90 days. 2 sales are on record for this company.
This page tracks CMPX Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
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