CMPX - CIK 0001738021
Compass Therapeutics, Inc. has filed 349 documents with the SEC between 2018 and 2026. The most frequent type is insider trade (112 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Filing | Type | Filed | Period covered |
|---|---|---|---|
| Activist ownership stake (update) | SC 13D/A | 2021-11-09 | - |
| Insider trade | 4 | 2021-11-08 | 2021-11-04 |
| Insider trade | 4 | 2021-11-08 | 2021-11-04 |
| Prospectus supplement | 424B5 | 2021-11-03 | - |
| Major company event | 8-K | 2021-11-03 | 2021-11-01 |
| Exchange certification | CERT | 2021-11-01 | - |
| Prospectus supplement | 424B5 | 2021-11-01 | - |
| 8-A12B | - | 2021-11-01 | - |
| Major company event | 8-K | 2021-11-01 | 2021-11-01 |
| Major company event | 8-K | 2021-10-08 | 2021-10-08 |
| Quarterly report | 10-Q | 2021-08-16 | 2021-06-30 |
| Major company event (amended) | 8-K/A | 2021-08-05 | 2021-06-25 |
| EFFECT | - | 2021-07-20 | - |
| Company correspondence | CORRESP | 2021-07-16 | - |
| SEC correspondence | UPLOAD | 2021-07-15 | - |
| Activist ownership stake (update) | SC 13D/A | 2021-07-14 | - |
| Securities registration | S-3 | 2021-07-09 | - |
| Major company event | 8-K | 2021-06-30 | 2021-06-25 |
| Insider trade | 4 | 2021-06-29 | 2021-06-25 |
| New insider ownership | 3 | 2021-06-29 | 2021-06-25 |
| Major company event | 8-K | 2021-06-04 | 2021-06-03 |
| Major company event | 8-K | 2021-05-13 | 2021-05-13 |
| Insider trade | 4 | 2021-05-05 | 2021-05-03 |
| New insider ownership | 3 | 2021-05-05 | 2021-05-03 |
| 424B3 | - | 2021-04-30 | - |
| Quarterly report | 10-Q | 2021-04-30 | 2021-03-31 |
| Proxy statement | DEF 14A | 2021-04-29 | 2021-06-03 |
| Major company event | 8-K | 2021-04-19 | 2021-04-14 |
| 424B3 | - | 2021-03-11 | - |
| EFFECT | - | 2021-03-08 | - |
| POS AM | - | 2021-03-05 | - |
| Annual report | 10-K | 2021-03-05 | 2020-12-31 |
| Insider trade | 4 | 2021-03-01 | 2021-02-09 |
| Insider trade | 4 | 2021-03-01 | 2021-02-09 |
| Passive ownership stake (update) | SC 13G/A | 2021-02-08 | - |
| Employee stock plan | S-8 | 2021-01-14 | - |
| Insider trade | 4 | 2020-12-23 | 2020-12-22 |
| Major company event | 8-K | 2020-12-17 | 2020-12-12 |
| RW | - | 2020-11-13 | - |
| Exchange certification | CERT | 2020-11-12 | - |
| 8-A12B | - | 2020-11-10 | - |
| Quarterly report | 10-Q | 2020-11-09 | 2020-09-30 |
| 424B3 | - | 2020-11-09 | - |
| S-1/A | - | 2020-11-09 | - |
| IPO registration | S-1 | 2020-10-19 | - |
| EFFECT | - | 2020-09-25 | - |
| 424B3 | - | 2020-09-25 | - |
| Company correspondence | CORRESP | 2020-09-23 | - |
| DRS | - | 2020-09-23 | - |
| S-1/A | - | 2020-09-18 | - |