Compass Minerals International Inc
CMPNYSECIK 1227654MaterialsFiscal year ends Sep 30
Reports and events: 341 filings
Newest first, by EDGAR acceptance time (Eastern). Each filing’s page lists its documents on sec.gov and, for 10-K and 10-Q reports, the extracted sections.
What the forms are: 10-K, 10-Q, 8-K, Form 4, DEF 14A, Schedule 13D, Schedule 13G, amendments, accession numbers.
| Filed | Form | What it is | Accession number |
|---|---|---|---|
| 2026-10-1520:36 ET | 8-K | 5.02 Departure or appointment of officers or directors; 8.01 Other events | 0001227654-26-000075 |
| 2026-08-0621:09 ET | 10-Q | Quarterly reportPeriod 2026-06-30 | 0001227654-26-000054 |
| 2026-08-0521:18 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001227654-26-000051 |
| 2026-08-0521:17 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001227654-26-000050 |
| 2026-05-0721:11 ET | 10-Q | Quarterly reportPeriod 2026-03-31 | 0001227654-26-000025 |
| 2026-05-0621:04 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001227654-26-000023 |
| 2026-03-2420:22 ET | 8-K | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001227654-26-000018 |
| 2026-03-1021:59 ET | 8-K | 5.07 Shareholder vote results | 0001227654-26-000015 |
| 2026-02-0600:24 ET | 10-Q | Quarterly reportPeriod 2025-12-31 | 0001227654-26-000012 |
| 2026-02-0421:53 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001227654-26-000008 |
| 2026-01-2321:15 ET | DEF 14A | Proxy statementPeriod 2026-03-05 | 0001308179-26-000019 |
| 2025-12-2321:10 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0001227654-25-000201 |
| 2025-12-1923:55 ET | 8-K | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-25-122646 |
| 2025-12-1201:16 ET | 10-K | Annual reportPeriod 2025-09-30 | 0001227654-25-000199 |
| 2025-12-0821:30 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001227654-25-000196 |
| 2025-08-2820:21 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0001227654-25-000155 |
| 2025-08-1120:41 ET | 10-Q | Quarterly reportPeriod 2025-06-30 | 0001227654-25-000146 |
| 2025-08-1120:34 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001227654-25-000145 |
| 2025-06-2710:45 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001227654-25-000121 |
| 2025-06-1621:01 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001227654-25-000103 |
| 2025-06-0321:11 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001227654-25-000098 |
| 2025-05-0820:20 ET | 10-Q | Quarterly reportPeriod 2025-03-31 | 0001227654-25-000091 |
| 2025-05-0720:39 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001227654-25-000088 |
| 2025-03-2520:41 ET | 8-K | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-25-027807 |
| 2025-03-1120:23 ET | 8-K | 5.07 Shareholder vote results | 0001227654-25-000065 |
| 2025-02-1022:22 ET | 10-Q | Quarterly reportPeriod 2024-12-31 | 0001227654-25-000033 |
| 2025-02-1022:21 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001227654-25-000032 |
| 2025-01-2811:50 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001104659-25-006529 |
| 2025-01-2321:15 ET | DEF 14A | Proxy statementPeriod 2025-03-06 | 0001308179-25-000013 |
| 2024-12-1622:19 ET | 10-K | Annual reportPeriod 2024-09-30 | 0001227654-24-000230 |
| 2024-12-1621:41 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001227654-24-000228 |
| 2024-10-3022:07 ET | 10-Q | Quarterly reportPeriod 2024-06-30 | 0001227654-24-000215 |
| 2024-10-3022:03 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001227654-24-000213 |
| 2024-10-3022:01 ET | 10-Q/A | Quarterly report, amendedPeriod 2024-03-31 | 0001227654-24-000212 |
| 2024-10-2921:23 ET | 10-K/A | Annual report, amendedPeriod 2023-09-30 | 0001227654-24-000210 |
| 2024-09-1920:16 ET | 8-K | 1.01 Entry into a material agreement; 8.01 Other events; 9.01 Financial statements and exhibits | 0001227654-24-000171 |
| 2024-09-1710:03 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001227654-24-000168 |
| 2024-08-1620:15 ET | 8-K | 1.01 Entry into a material agreement; 3.01 Delisting notice; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001227654-24-000165 |
| 2024-08-0200:34 ET | SC 13D/A | Ownership report, active investor, amended | 0001193125-24-193114 |
| 2024-07-0310:50 ET | 8-K | 4.02 Non-reliance on financial statements | 0001227654-24-000148 |
| 2024-07-0120:08 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001227654-24-000142 |
| 2024-06-2510:51 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001227654-24-000128 |
| 2024-06-1023:13 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001104659-24-069775 |
| 2024-05-1720:03 ET | 8-K | 5.03 Amendment to articles or bylaws; 9.01 Financial statements and exhibits | 0001227654-24-000113 |
| 2024-05-1520:04 ET | 10-Q | Quarterly reportPeriod 2024-03-31 | 0001227654-24-000110 |
| 2024-05-0720:32 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001227654-24-000101 |
| 2024-03-2721:00 ET | 8-K | 1.01 Entry into a material agreement; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-24-039754 |
| 2024-03-0821:19 ET | 8-K | 5.07 Shareholder vote results | 0001227654-24-000070 |
| 2024-02-2122:07 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001227654-24-000051 |
| 2024-02-0822:56 ET | 10-Q | Quarterly reportPeriod 2023-12-31 | 0001227654-24-000036 |
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 15:10 ET. Listed shows no prices and gives no investment advice.