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
10-K Annual report Dec 12, 2025 Sep 30, 2025
10-K Annual report Dec 16, 2024 Sep 30, 2024
10-K/A Amended annual report Oct 29, 2024 Sep 30, 2023
10-K Annual report Nov 29, 2023 Sep 30, 2023
10-K Annual report Dec 14, 2022 Sep 30, 2022
10-KT Transition report Nov 30, 2021 Sep 30, 2021
10-K/A Amended annual report Sep 3, 2021 Dec 31, 2020
10-K Annual report Feb 26, 2021 Dec 31, 2020
10-K Annual report Feb 26, 2020 Dec 31, 2019
10-K Annual report Mar 1, 2019 Dec 31, 2018
10-K Annual report Feb 27, 2018 Dec 31, 2017

Showing 11 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.