Compass Therapeutics, Inc. (CMPX) Insider Trading & SEC Filings
Last SEC filing
Compass Therapeutics, Inc. (CMPX) - no SEC Form 4 insider filings recorded in the last 90 days. 3 Form 8-K material event filings were reported by CMPX in the last 90 days. InsiderAlpha tracks every CMPX SEC filing - Form 4, Form 144, and 8-K - in real time, including Rule 10b5-1 plan detection.
About Compass Therapeutics, Inc. (CMPX)
Compass Therapeutics, Inc. trades under the ticker CMPX. InsiderAlpha tracks 20 primary SEC Form 4 filings from 13 reporting insiders for CMPX since 2024, sourced directly from SEC EDGAR.
| Sector | Health Care insider trading |
|---|---|
| SIC classification | Biological Products, (No Diagnostic Substances) (SIC 2836) |
| SEC CIK | 0001738021 |
90-Day SEC Filing Activity
| Form 8-K filings (90d) | 3 |
|---|---|
| Latest Form 4 filing | 2026-04-29 |
Recent CMPX Insider Transactions (Form 4)
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Neil Lerner | Chief Accounting Officer | A - Grant or award | 15.0K | $1.89 | $28K | SEC | |
| Jonathan Anderman | General Counsel | A - Grant or award | 25.0K | $1.89 | $47K | SEC | |
| Thomas J. Schuetz | CHIEF EXECUTIVE OFFICER | F - Tax withholding / forfeiture | 36.7K | $6.52 | $239K | SEC | |
| Thomas J. Schuetz | CHIEF EXECUTIVE OFFICER | F - Tax withholding / forfeiture | 46.8K | $5.35 | $250K | SEC | |
| Neil Lerner | Chief Accounting Officer | A - Grant or award | 62.5K | $5.17 | $323K | SEC | |
| Barry Shin | CFO | A - Grant or award | 125.0K | $5.17 | $646K | SEC | |
| Thomas J. Schuetz | CEO | A - Grant or award | 250.0K | $5.17 | $1.29M | SEC | |
| Jonathan Anderman | General Counsel | A - Grant or award | 150.0K | $5.17 | $776K | SEC | |
| Thomas J. Schuetz | CHIEF EXECUTIVE OFFICER | F - Tax withholding / forfeiture | 44.0K | $4.83 | $213K | SEC | |
| ORBIMED ADVISORS LLC | Director | S - Open-market sale | 3.57M | $1.59 | $5.68M | SEC | |
| Carl L. Gordon | Director | S - Open-market sale | 3.57M | $1.59 | $5.68M | SEC | |
| Barry Shin | CFO | A - Grant or award | 400.0K | $1.65 | $660K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Compass Therapeutics, Inc. (CMPX). Updated in real time as new filings are submitted to the SEC.
Recent CMPX Form 8-K Material Events
- - Item 7.01, 9.01 [SEC]
- - Item 5.03, 9.01 [SEC]
- - Item 5.07 [SEC]
- - Item 2.02, 9.01 [SEC]
- - Item 7.01, 8.01, 9.01 · Clinical · neutral [SEC]
Compass Therapeutics announced data from a randomized Phase 2/3 study in biliary tract cancer patients on April 27, 2026, and hosted a webcast to review the results. The filing provides no detail on whether the trial met or missed its primary endpoints, making the clinical signif
Recent Insider Filings
- - Jonathan Anderman (General Counsel)
- - Neil Lerner (Chief Accounting Officer)
- - Thomas J. Schuetz (CHIEF EXECUTIVE OFFICER)
- - Thomas J. Schuetz (CHIEF EXECUTIVE OFFICER)
- - Barry Shin (CFO)
Form 4 Transaction Code Reference
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in CMPX insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
CMPX Insider Trading - FAQ
- What is the latest insider trade for CMPX?
- Compass Therapeutics, Inc. (CMPX) had 0 insider filings in the last 90 days, with the most recent on 2026-04-29. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
- How many insiders are buying CMPX stock?
- 0 insider purchases of CMPX were filed in the last 90 days.
- How many insiders are selling CMPX stock?
- 0 insider sales of CMPX were filed in the last 90 days.
- Where can I see CMPX SEC filings (Form 4, 10-K, 10-Q, 8-K)?
- 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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Learn More
- What is SEC Form 4?
- How to read insider buying signals
- Rule 10b5-1 trading plans explained
- The cluster buying signal
Open the live CMPX dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.