COMPASS MINERALS INTERNATIONAL INC — All Filings
1,007 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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10-K
10-K/A
10-KT
10-Q
10-Q/A
11-K
144
144/A
15-12B
15-12B/A
3
3/A
4
4/A
424B3
424B4
8-A12B
8-K
8-K/A
ARS
CERTNYS
CORRESP
CT ORDER
DEF 14A
DEFA14A
EFFECT
NT 10-K
NT 10-Q
NT 11-K
PRE 14A
S-1
S-1/A
S-1MEF
S-3
S-3/A
S-4
S-4/A
S-8
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13G
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0000102909-26-001016 | Mar 26, 2026 | — |
| 8-K | 8-K | 0001227654-26-000018 | Mar 24, 2026 | Mar 20, 2026 |
| 8-K | 8-K | 0001227654-26-000015 | Mar 10, 2026 | Mar 5, 2026 |
| 4 | FORM 4 | 0001121919-26-000004 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | FORM 4 | 0001242956-26-000002 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | FORM 4 | 0001659413-26-000006 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | FORM 4 | 0001299936-26-000005 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | FORM 4 | 0002108024-26-000006 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | FORM 4 | 0002108014-26-000004 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | FORM 4 | 0001601170-26-000008 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | FORM 4 | 0001865695-26-000004 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | FORM 4 | 0001806395-26-000004 | Mar 9, 2026 | Mar 5, 2026 |
| 4 | FORM 4 | 0001227654-26-000013 | Mar 4, 2026 | Mar 3, 2026 |
| 10-Q | 10-Q | 0001227654-26-000012 | Feb 6, 2026 | Dec 31, 2025 |
| 8-K | 8-K | 0001227654-26-000008 | Feb 4, 2026 | — |
| 4 | FORM 4 | 0002108024-26-000004 | Jan 29, 2026 | Dec 18, 2025 |
| 3 | FORM 3 | 0002108024-26-000002 | Jan 29, 2026 | Dec 18, 2025 |
| 4 | FORM 4 | 0002108014-26-000002 | Jan 29, 2026 | Dec 18, 2025 |
| 3 | FORM 3 | 0001227654-26-000005 | Jan 29, 2026 | Dec 18, 2025 |
| 4 | FORM 4 | 0002054940-26-000002 | Jan 29, 2026 | Jan 28, 2026 |
| 4 | FORM 4 | 0001601170-26-000004 | Jan 26, 2026 | Dec 18, 2025 |
| 3 | FORM 3 | 0001601170-26-000002 | Jan 26, 2026 | Dec 18, 2025 |
| DEFA14A | DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS | 0001308179-26-000020 | Jan 23, 2026 | — |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0001308179-26-000019 | Jan 23, 2026 | Mar 5, 2026 |
| 4 | FORM 4 | 0001210454-26-000002 | Jan 20, 2026 | Jan 18, 2026 |
| 4 | FORM 4 | 0001299936-26-000003 | Jan 5, 2026 | Dec 18, 2025 |
| 4 | FORM 4 | 0001227654-26-000003 | Jan 5, 2026 | Dec 31, 2025 |
| 3 | FORM 3 | 0001227654-26-000001 | Jan 5, 2026 | Dec 18, 2025 |
| 4 | FORM 4 | 0001659413-26-000004 | Jan 5, 2026 | Dec 31, 2025 |
| 4 | FORM 4 | 0001865695-26-000002 | Jan 5, 2026 | Dec 31, 2025 |
| 4 | FORM 4 | 0001121919-26-000002 | Jan 5, 2026 | Dec 31, 2025 |
| 4 | FORM 4 | 0001806395-26-000002 | Jan 5, 2026 | Dec 31, 2025 |
| 8-K | 8-K | 0001227654-25-000201 | Dec 23, 2025 | Dec 10, 2025 |
| 8-K | FORM 8-K | 0001104659-25-122646 | Dec 19, 2025 | Dec 18, 2025 |
| 10-K | 10-K | 0001227654-25-000199 | Dec 12, 2025 | Sep 30, 2025 |
| 8-K | 8-K | 0001227654-25-000196 | Dec 8, 2025 | — |
| 4 | FORM 4 | 0001227654-25-000192 | Nov 26, 2025 | Nov 24, 2025 |
| 4 | FORM 4 | 0001227654-25-000191 | Nov 26, 2025 | Nov 24, 2025 |
| 4 | FORM 4 | 0001227654-25-000190 | Nov 26, 2025 | Nov 24, 2025 |
| 4 | FORM 4 | 0001227654-25-000189 | Nov 26, 2025 | Nov 24, 2025 |
| 4 | FORM 4 | 0001227654-25-000188 | Nov 26, 2025 | Nov 24, 2025 |
| 4 | FORM 4 | 0001227654-25-000187 | Nov 26, 2025 | Nov 24, 2025 |
| SCHEDULE 13G | — | 0001104659-25-113710 | Nov 18, 2025 | — |
| SCHEDULE 13G/A | — | 0000102909-25-000079 | Oct 30, 2025 | — |
| 4 | FORM 4 | 0001227654-25-000182 | Oct 16, 2025 | Oct 15, 2025 |
| 4 | FORM 4 | 0001227654-25-000180 | Oct 16, 2025 | Oct 15, 2025 |
| 4 | FORM 4 | 0001227654-25-000178 | Oct 16, 2025 | Oct 15, 2025 |
| 4 | FORM 4 | 0001227654-25-000176 | Oct 9, 2025 | Sep 11, 2025 |
| 3 | FORM 3 | 0001227654-25-000174 | Oct 9, 2025 | Sep 11, 2025 |
| 4 | FORM 4 | 0001865695-25-000004 | Oct 2, 2025 | Sep 30, 2025 |