Compass Minerals International Inc SEC filings CMP
Compass Minerals International Inc has 1,005 filings in SEC EDGAR's recent list, going back to Oct 2, 2017. Its latest annual report, Form 10-K, was filed on Dec 12, 2025 for the period ended Sep 30, 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 Oct 28, 2026 (officer or director change). The company's fiscal year ends on September 30.
| Form | Description | Filed | Period |
|---|---|---|---|
| S-8 | Employee stock plan registration | Aug 27, 2026 | — |
| S-8 | Employee stock plan registration | Nov 13, 2024 | — |
| 424B3 | Prospectus | Sep 29, 2023 | — |
| S-3 | Shelf registration | Sep 21, 2023 | — |
| S-8 | Employee stock plan registration | Jun 14, 2022 | — |
| S-8 | Employee stock plan registration | May 14, 2020 | — |
Showing 6 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
- Mining & Quarrying of Nonmetallic Minerals (No Fuels) (SIC 1400)
- Listed as
- CMP (NYSE)
- Fiscal year ends
- September 30
- Incorporated in
- DE
- Headquarters
- Overland Park, KS
- SEC filer status
- Accelerated filer
- SEC CIK
- 1227654
- Former names
- SALT HOLDINGS CORP (until Nov 5, 2003)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.