CMP - CIK 0001227654
COMPASS MINERALS INTERNATIONAL INC has filed 2,439 documents with the SEC between 2003 and 2026. The most frequent type is insider trade (1,635 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 |
|---|---|---|---|
| Insider trade | 4 | 2026-05-19 | 2026-05-18 |
| Insider trade | 4 | 2026-05-14 | 2026-05-13 |
| SCHEDULE 13G | - | 2026-05-12 | - |
| Quarterly report | 10-Q | 2026-05-07 | 2026-03-31 |
| Major company event | 8-K | 2026-05-06 | 2026-05-06 |
| SCHEDULE 13G/A | - | 2026-04-27 | - |
| Insider trade | 4 | 2026-04-01 | 2026-03-31 |
| Insider trade | 4 | 2026-04-01 | 2026-03-31 |
| Insider trade | 4 | 2026-04-01 | 2026-03-31 |
| SCHEDULE 13G/A | - | 2026-03-26 | - |
| Major company event | 8-K | 2026-03-24 | 2026-03-20 |
| Major company event | 8-K | 2026-03-10 | 2026-03-05 |
| Insider trade | 4 | 2026-03-09 | 2026-03-05 |
| Insider trade | 4 | 2026-03-09 | 2026-03-05 |
| Insider trade | 4 | 2026-03-09 | 2026-03-05 |
| Insider trade | 4 | 2026-03-09 | 2026-03-05 |
| Insider trade | 4 | 2026-03-09 | 2026-03-05 |
| Insider trade | 4 | 2026-03-09 | 2026-03-05 |
| Insider trade | 4 | 2026-03-09 | 2026-03-05 |
| Insider trade | 4 | 2026-03-09 | 2026-03-05 |
| Insider trade | 4 | 2026-03-09 | 2026-03-05 |
| Insider trade | 4 | 2026-03-04 | 2026-03-03 |
| SCHEDULE 13G | - | 2026-02-09 | - |
| Quarterly report | 10-Q | 2026-02-06 | 2025-12-31 |
| Major company event | 8-K | 2026-02-04 | 2026-02-04 |
| Insider trade | 4 | 2026-01-29 | 2025-12-18 |
| New insider ownership | 3 | 2026-01-29 | 2025-12-18 |
| Insider trade | 4 | 2026-01-29 | 2025-12-18 |
| Insider trade | 4 | 2026-01-29 | 2026-01-28 |
| New insider ownership | 3 | 2026-01-29 | 2025-12-18 |
| Insider trade | 4 | 2026-01-26 | 2025-12-18 |
| New insider ownership | 3 | 2026-01-26 | 2025-12-18 |
| Proxy materials | DEFA14A | 2026-01-23 | - |
| Proxy statement | DEF 14A | 2026-01-23 | 2026-03-05 |
| Insider trade | 4 | 2026-01-20 | 2026-01-18 |
| Insider trade | 4 | 2026-01-05 | 2025-12-31 |
| Insider trade | 4 | 2026-01-05 | 2025-12-31 |
| Insider trade | 4 | 2026-01-05 | 2025-12-31 |
| Insider trade | 4 | 2026-01-05 | 2025-12-18 |
| Insider trade | 4 | 2026-01-05 | 2025-12-31 |
| New insider ownership | 3 | 2026-01-05 | 2025-12-18 |
| Insider trade | 4 | 2026-01-05 | 2025-12-31 |
| Major company event | 8-K | 2025-12-23 | 2025-12-10 |
| Major company event | 8-K | 2025-12-19 | 2025-12-18 |
| Annual report | 10-K | 2025-12-12 | 2025-09-30 |
| Major company event | 8-K | 2025-12-08 | 2025-12-08 |
| Insider trade | 4 | 2025-11-26 | 2025-11-24 |
| Insider trade | 4 | 2025-11-26 | 2025-11-24 |
| Insider trade | 4 | 2025-11-26 | 2025-11-24 |
| Insider trade | 4 | 2025-11-26 | 2025-11-24 |