Compass Therapeutics, Inc. SEC filings CMPX
Compass Therapeutics, Inc. has 359 filings in SEC EDGAR's recent list, going back to May 30, 2018. Its latest annual report, Form ARS, was filed on Apr 29, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 6, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Sep 22, 2026 (regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| S-8 | Employee stock plan registration | Mar 12, 2026 | — |
| S-3 | Shelf registration | Dec 30, 2025 | — |
| 424B5 | Prospectus supplement | Aug 13, 2025 | — |
| 424B5 | Prospectus supplement | Aug 12, 2025 | — |
| S-8 | Employee stock plan registration | Mar 27, 2025 | — |
| S-3 | Shelf registration | Aug 30, 2024 | — |
| 424B3 | Prospectus | Jan 24, 2023 | — |
| S-3 | Shelf registration | Dec 2, 2022 | — |
| 424B5 | Prospectus supplement | Aug 1, 2022 | — |
| 424B5 | Prospectus supplement | Dec 15, 2021 | — |
| 424B5 | Prospectus supplement | Dec 15, 2021 | — |
| 424B5 | Prospectus supplement | Nov 3, 2021 | — |
| 424B5 | Prospectus supplement | Nov 1, 2021 | — |
| S-3 | Shelf registration | Jul 9, 2021 | — |
| 424B3 | Prospectus | Apr 30, 2021 | — |
| 424B3 | Prospectus | Mar 11, 2021 | — |
| POS AM | Filing | Mar 5, 2021 | — |
| S-8 | Employee stock plan registration | Jan 14, 2021 | — |
| 424B3 | Prospectus | Nov 9, 2020 | — |
| S-1/A | Amended registration statement | Nov 9, 2020 | — |
| S-1 | Registration statement | Oct 19, 2020 | — |
| 424B3 | Prospectus | Sep 25, 2020 | — |
| S-1/A | Amended registration statement | Sep 18, 2020 | — |
| S-1 | Registration statement | Aug 11, 2020 | — |
Showing 24 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Biological Products, (No Diagnostic Substances) (SIC 2836)
- Listed as
- CMPX (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Boston, MA
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1738021
- Former names
- Olivia Ventures, Inc. (until Jun 8, 2020)
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All 182 Biological Products, (No Diagnostic Substances) companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.