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 |
|---|---|---|---|
| 8-K |
Current report
Officer or director change
|
Oct 28, 2026 | Oct 22, 2026 |
| 8-K |
Current report
Officer or director change, Other events
|
Oct 15, 2026 | Oct 9, 2026 |
| 8-K |
Current report
Officer or director change
|
Aug 5, 2026 | Aug 3, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2026 | Aug 5, 2026 |
| 8-K |
Current report
Results of operations
|
May 6, 2026 | May 6, 2026 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Mar 24, 2026 | Mar 20, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Mar 10, 2026 | Mar 5, 2026 |
| 8-K |
Current report
Results of operations
|
Feb 4, 2026 | Feb 4, 2026 |
| 8-K |
Current report
Other events
|
Dec 23, 2025 | Dec 10, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Dec 19, 2025 | Dec 18, 2025 |
| 8-K |
Current report
Results of operations
|
Dec 8, 2025 | Dec 8, 2025 |
| 8-K |
Current report
Other events
|
Aug 28, 2025 | Aug 15, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 11, 2025 | Aug 11, 2025 |
| 8-K |
Current report
Officer or director change
|
Jun 27, 2025 | Jun 26, 2025 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Jun 16, 2025 | Jun 16, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 3, 2025 | Jun 3, 2025 |
| 8-K |
Current report
Results of operations
|
May 7, 2025 | May 7, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Mar 25, 2025 | Mar 25, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Mar 11, 2025 | Mar 6, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 10, 2025 | Feb 10, 2025 |
| 8-K |
Current report
Officer or director change
|
Jan 28, 2025 | Jan 27, 2025 |
| 8-K |
Current report
Results of operations
|
Dec 16, 2024 | Dec 16, 2024 |
| 8-K |
Current report
Results of operations
|
Oct 30, 2024 | Oct 29, 2024 |
| 8-K |
Current report
Material agreement, Other events
|
Sep 19, 2024 | Sep 13, 2024 |
| 8-K |
Current report
Results of operations
|
Sep 17, 2024 | Sep 17, 2024 |
| 8-K |
Current report
Material agreement, Listing notice, Regulation FD disclosure
|
Aug 16, 2024 | Aug 12, 2024 |
| 8-K |
Current report
Restatement
|
Jul 3, 2024 | Jun 28, 2024 |
| 8-K |
Current report
Officer or director change
|
Jul 1, 2024 | Jul 1, 2024 |
| 8-K |
Current report
Officer or director change
|
Jun 25, 2024 | Jun 21, 2024 |
| 8-K |
Current report
Officer or director change
|
Jun 10, 2024 | Jun 7, 2024 |
| 8-K |
Current report
Bylaw or fiscal year change
|
May 17, 2024 | May 16, 2024 |
| 8-K |
Current report
Results of operations
|
May 7, 2024 | May 7, 2024 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Mar 27, 2024 | Mar 27, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Mar 8, 2024 | Mar 5, 2024 |
| 8-K |
Current report
Officer or director change
|
Feb 21, 2024 | Feb 21, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 7, 2024 | Feb 7, 2024 |
| 8-K |
Current report
Officer or director change
|
Jan 16, 2024 | Jan 16, 2024 |
| 8-K |
Current report
Officer or director change
|
Jan 16, 2024 | Jan 15, 2024 |
| 8-K |
Current report
Officer or director change
|
Dec 19, 2023 | Dec 18, 2023 |
| 8-K |
Current report
Auditor change
|
Dec 7, 2023 | Dec 1, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 16, 2023 | Nov 16, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 21, 2023 | Sep 21, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 14, 2023 | Aug 11, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2023 | Aug 8, 2023 |
| 8-K/A |
Amended current report
Shareholder vote results
|
Jun 30, 2023 | Feb 15, 2023 |
| 8-K |
Current report
Results of operations
|
May 9, 2023 | May 9, 2023 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
May 9, 2023 | May 5, 2023 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure, Other events
|
May 5, 2023 | May 5, 2023 |
| 8-K |
Current report
Officer or director change
|
May 4, 2023 | May 3, 2023 |
| 8-K |
Current report
Other events
|
Apr 4, 2023 | Apr 4, 2023 |
| 8-K |
Current report
Other events
|
Apr 4, 2023 | Mar 29, 2023 |
| 8-K |
Current report
Shareholder vote results
|
Feb 21, 2023 | Feb 15, 2023 |
| 8-K |
Current report
Results of operations
|
Feb 7, 2023 | Feb 7, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 29, 2022 | Nov 29, 2022 |
| 8-K |
Current report
Material agreement
|
Nov 22, 2022 | Nov 16, 2022 |
| 8-K |
Current report
Officer or director change
|
Nov 16, 2022 | Nov 13, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 10, 2022 | Nov 10, 2022 |
| 8-K |
Current report
Unregistered share sale, Regulation FD disclosure
|
Oct 18, 2022 | Oct 18, 2022 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Sep 14, 2022 | Sep 14, 2022 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
|
Sep 14, 2022 | Sep 14, 2022 |
| 8-K |
Current report
Officer or director change
|
Aug 8, 2022 | Aug 5, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2022 | Aug 4, 2022 |
| 8-K |
Current report
Officer or director change
|
Jul 12, 2022 | Jul 11, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 27, 2022 | Jun 27, 2022 |
| 8-K |
Current report
Material agreement
|
Jun 13, 2022 | Jun 13, 2022 |
| 8-K |
Current report
Officer or director change
|
May 9, 2022 | May 9, 2022 |
| 8-K |
Current report
Results of operations
|
May 5, 2022 | May 5, 2022 |
| 8-K |
Current report
Other events
|
Apr 20, 2022 | Apr 20, 2022 |
| 8-K |
Current report
Other events
|
Apr 12, 2022 | Apr 7, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 11, 2022 | Apr 11, 2022 |
| 8-K |
Current report
Officer or director change
|
Mar 24, 2022 | Mar 24, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 2, 2022 | Mar 2, 2022 |
| 8-K |
Current report
Shareholder vote results
|
Feb 28, 2022 | Feb 24, 2022 |
| 8-K |
Current report
Results of operations
|
Feb 8, 2022 | Feb 8, 2022 |
| 8-K |
Current report
Officer or director change
|
Jan 24, 2022 | Jan 19, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 6, 2022 | Jan 6, 2022 |
| 8-K/A | Amended current report | Dec 8, 2021 | Nov 29, 2021 |
| 8-K |
Current report
Officer or director change
|
Dec 2, 2021 | Dec 1, 2021 |
| 8-K |
Current report
Other events
|
Nov 29, 2021 | Nov 29, 2021 |
| 8-K |
Current report
Officer or director change
|
Nov 17, 2021 | Nov 16, 2021 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 15, 2021 | Nov 15, 2021 |
| 8-K |
Current report
Officer or director change
|
Oct 27, 2021 | Oct 22, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 19, 2021 | Oct 19, 2021 |
| 8-K |
Current report
Officer or director change
|
Oct 12, 2021 | Oct 12, 2021 |
| 8-K |
Current report
Results of operations
|
Sep 29, 2021 | Sep 29, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 20, 2021 | Sep 20, 2021 |
| 8-K |
Current report
Results of operations
|
Aug 13, 2021 | Aug 13, 2021 |
| 8-K |
Current report
Restatement, Regulation FD disclosure
|
Aug 5, 2021 | Aug 4, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Jul 13, 2021 | Jul 13, 2021 |
| 8-K/A |
Amended current report
Acquisition or sale of assets
|
Jul 8, 2021 | Jul 1, 2021 |
| 8-K |
Current report
Acquisition or sale of assets, Other events
|
Jul 1, 2021 | Jul 1, 2021 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Jun 25, 2021 | Jun 23, 2021 |
| 8-K |
Current report
Shareholder vote results
|
May 20, 2021 | May 18, 2021 |
| 8-K |
Current report
Results of operations
|
May 4, 2021 | May 4, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 12, 2021 | Apr 12, 2021 |
| 8-K |
Current report
Other events
|
Apr 8, 2021 | Apr 8, 2021 |
| 8-K |
Current report
Other events
|
Mar 31, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Material agreement, Other events
|
Mar 24, 2021 | Mar 23, 2021 |
| 8-K |
Current report
Results of operations
|
Feb 16, 2021 | Feb 16, 2021 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Jan 5, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Dec 30, 2020 | Dec 26, 2020 |
| 8-K |
Current report
Results of operations
|
Nov 4, 2020 | Nov 4, 2020 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2020 | Aug 4, 2020 |
| 8-K |
Current report
Material agreement, New debt
|
Jul 1, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Change to shareholder rights, Officer or director change, Bylaw or fiscal year change, Shareholder vote results
|
May 19, 2020 | May 14, 2020 |
| 8-K |
Current report
Results of operations
|
May 5, 2020 | May 5, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 6, 2020 | Apr 6, 2020 |
| 8-K |
Current report
Officer or director change
|
Mar 20, 2020 | Mar 18, 2020 |
| 8-K |
Current report
Results of operations
|
Feb 10, 2020 | Feb 10, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 6, 2020 | Jan 6, 2020 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Nov 26, 2019 | Nov 26, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 22, 2019 | Nov 22, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 20, 2019 | Nov 20, 2019 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2019 | Nov 5, 2019 |
| 8-K/A |
Amended current report
Officer or director change
|
Oct 3, 2019 | Sep 28, 2019 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2019 | Aug 6, 2019 |
| 8-K |
Current report
Officer or director change
|
Jul 18, 2019 | Jul 15, 2019 |
| 8-K |
Current report
Shareholder vote results
|
May 13, 2019 | May 9, 2019 |
| 8-K |
Current report
Results of operations
|
Apr 30, 2019 | Apr 30, 2019 |
| 8-K |
Current report
Officer or director change
|
Apr 23, 2019 | Apr 19, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 8, 2019 | Apr 8, 2019 |
| 8-K | Current report | Apr 3, 2019 | Apr 3, 2019 |
| 8-K |
Current report
Officer or director change
|
Mar 6, 2019 | Mar 6, 2019 |
| 8-K |
Current report
Results of operations
|
Feb 11, 2019 | Feb 11, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 8, 2019 | Jan 8, 2019 |
| 8-K |
Current report
Officer or director change
|
Dec 19, 2018 | Dec 18, 2018 |
| 8-K |
Current report
Material agreement
|
Dec 6, 2018 | Dec 5, 2018 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Nov 19, 2018 | Nov 16, 2018 |
| 8-K |
Current report
Results of operations
|
Oct 31, 2018 | Oct 31, 2018 |
| 8-K |
Current report
Results of operations
|
Oct 23, 2018 | Oct 23, 2018 |
| 8-K |
Current report
Officer or director change
|
Sep 17, 2018 | Sep 17, 2018 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2018 | Aug 6, 2018 |
| 8-K |
Current report
Other events
|
Jul 16, 2018 | Jul 16, 2018 |
| 8-K |
Current report
Other events
|
Jul 16, 2018 | Jul 14, 2018 |
| 8-K |
Current report
Shareholder vote results
|
May 9, 2018 | May 9, 2018 |
| 8-K |
Current report
Results of operations
|
May 1, 2018 | May 1, 2018 |
| 8-K |
Current report
Other events
|
Apr 27, 2018 | Apr 27, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 10, 2018 | Apr 10, 2018 |
| 8-K |
Current report
Results of operations
|
Feb 13, 2018 | Feb 13, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 10, 2018 | Jan 10, 2018 |
| 8-K |
Current report
Results of operations
|
Oct 30, 2017 | Oct 30, 2017 |
Showing 141 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.