COMPASS MINERALS INTERNATIONAL INC SEC EDGAR Filings (CIK 0001227654)

SEC EDGAR filings, ownership reports, and insider transactions for COMPASS MINERALS INTERNATIONAL INC.

Symbol
CMP on NYSE
Industry
Mining & Quarrying Of Nonmetallic Minerals (No Fuels) (Office Of Energy & Transportation)
Business address
9900 W. 109 Th Street, Suite 100, Overland Park, KS, 66210
State of incorporation
DE
Fiscal year end
30 September
Former names
SALT HOLDINGS CORP (to 05 Nov 2003)
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COMPASS MINERALS INTERNATIONAL INC has filed 2,405 SEC EDGAR filings since 17 Apr 2003

Latest Filings

Recent SEC filings for COMPASS MINERALS INTERNATIONAL INC including 4, 3, 8-K and more.

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open 4 document View SEC filing for 4 FORM 4 20 Jan 2026 18 Jan 2026
4 Open 4 document View SEC filing for 4 FORM 4 05 Jan 2026 18 Dec 2025
4 Open 4 document View SEC filing for 4 FORM 4 05 Jan 2026 31 Dec 2025
3 Open 3 document View SEC filing for 3 FORM 3 05 Jan 2026 18 Dec 2025
4 Open 4 document View SEC filing for 4 FORM 4 05 Jan 2026 31 Dec 2025
4 Open 4 document View SEC filing for 4 FORM 4 05 Jan 2026 31 Dec 2025
4 Open 4 document View SEC filing for 4 FORM 4 05 Jan 2026 31 Dec 2025
4 Open 4 document View SEC filing for 4 FORM 4 05 Jan 2026 31 Dec 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 23 Dec 2025 10 Dec 2025 001-31921
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 19 Dec 2025 18 Dec 2025 001-31921
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 12 Dec 2025 30 Sep 2025 001-31921
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Dec 2025 08 Dec 2025 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 26 Nov 2025 24 Nov 2025
4 Open 4 document View SEC filing for 4 FORM 4 26 Nov 2025 24 Nov 2025
4 Open 4 document View SEC filing for 4 FORM 4 26 Nov 2025 24 Nov 2025
4 Open 4 document View SEC filing for 4 FORM 4 26 Nov 2025 24 Nov 2025
4 Open 4 document View SEC filing for 4 FORM 4 26 Nov 2025 24 Nov 2025
4 Open 4 document View SEC filing for 4 FORM 4 26 Nov 2025 24 Nov 2025
SCHEDULE 13G Open SCHEDULE 13G document View SEC filing for SCHEDULE 13G 18 Nov 2025 005-79419
SCHEDULE 13G Open SCHEDULE 13G document View SEC filing for SCHEDULE 13G 10 Nov 2025 005-79419
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 30 Oct 2025 005-79419
4 Open 4 document View SEC filing for 4 FORM 4 16 Oct 2025 15 Oct 2025
4 Open 4 document View SEC filing for 4 FORM 4 16 Oct 2025 15 Oct 2025
4 Open 4 document View SEC filing for 4 FORM 4 16 Oct 2025 15 Oct 2025
4 Open 4 document View SEC filing for 4 FORM 4 09 Oct 2025 11 Sep 2025
3 Open 3 document View SEC filing for 3 FORM 3 09 Oct 2025 11 Sep 2025
4 Open 4 document View SEC filing for 4 FORM 4 02 Oct 2025 30 Sep 2025
4 Open 4 document View SEC filing for 4 FORM 4 02 Oct 2025 30 Sep 2025
4 Open 4 document View SEC filing for 4 FORM 4 02 Oct 2025 30 Sep 2025
4 Open 4 document View SEC filing for 4 FORM 4 01 Oct 2025 30 Sep 2025
4 Open 4 document View SEC filing for 4 FORM 4 01 Oct 2025 30 Sep 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 28 Aug 2025 15 Aug 2025 001-31921
144 Open 144 document View SEC filing for 144 27 Aug 2025 001-31921
144 Open 144 document View SEC filing for 144 19 Aug 2025 001-31921
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 14 Aug 2025 005-79419
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 11 Aug 2025 30 Jun 2025 001-31921
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 11 Aug 2025 11 Aug 2025 001-31921
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 17 Jul 2025 005-79419
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 03 Jul 2025 30 Jun 2025
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2025 30 Jun 2025
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2025 30 Jun 2025
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2025 30 Jun 2025
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2025 30 Jun 2025
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2025 30 Jun 2025
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2025 30 Jun 2025
SD Open SD document | Open XBRL data View SEC filing for SD SD 27 Jun 2025 001-31921
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 27 Jun 2025 26 Jun 2025 001-31921
11-K Open 11-K document View SEC filing for 11-K 11-K 26 Jun 2025 31 Dec 2024 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 25 Jun 2025 24 Jun 2025
4 Open 4 document View SEC filing for 4 FORM 4 17 Jun 2025 13 May 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 16 Jun 2025 16 Jun 2025 001-31921
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 03 Jun 2025 03 Jun 2025 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 19 May 2025 18 May 2025
144 Open 144 document View SEC filing for 144 19 May 2025 001-31921
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 May 2025 31 Mar 2025 001-31921
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 07 May 2025 07 May 2025 001-31921
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 28 Apr 2025 005-79419
SCHEDULE 13G Open SCHEDULE 13G document View SEC filing for SCHEDULE 13G 28 Apr 2025 005-79419
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2025 31 Mar 2025
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2025 31 Mar 2025
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2025 31 Mar 2025
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2025 31 Mar 2025
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2025 31 Mar 2025
4 Open 4 document View SEC filing for 4 FORM 4 27 Mar 2025 26 Mar 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 25 Mar 2025 25 Mar 2025 001-31921
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 11 Mar 2025 06 Mar 2025 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 07 Mar 2025 05 Mar 2025
4 Open 4 document View SEC filing for 4 FORM 4 07 Mar 2025 05 Mar 2025
4 Open 4 document View SEC filing for 4 FORM 4 07 Mar 2025 05 Mar 2025
4 Open 4 document View SEC filing for 4 FORM 4 07 Mar 2025 05 Mar 2025
4 Open 4 document View SEC filing for 4 FORM 4 07 Mar 2025 05 Mar 2025
4 Open 4 document View SEC filing for 4 FORM 4 05 Mar 2025 03 Mar 2025
3 Open 3 document View SEC filing for 3 FORM 3 05 Mar 2025 03 Mar 2025
4 Open 4 document View SEC filing for 4 FORM 4 03 Mar 2025 28 Feb 2025
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEF 14A 18 Feb 2025 001-31921
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 10 Feb 2025 31 Dec 2024 001-31921
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 10 Feb 2025 10 Feb 2025 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 05 Feb 2025 15 Oct 2024
4 Open 4 document View SEC filing for 4 FORM 4 05 Feb 2025 28 Jan 2025
3 Open 3 document View SEC filing for 3 FORM 3 05 Feb 2025 28 Jan 2025
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 30 Jan 2025 005-79419
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 28 Jan 2025 27 Jan 2025 001-31921
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS 23 Jan 2025 001-31921
DEF 14A Open DEF 14A document | Open XBRL data View SEC filing for DEF 14A DEFINITIVE PROXY STATEMENT 23 Jan 2025 06 Mar 2025 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 21 Jan 2025 18 Jan 2025
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2025 31 Dec 2024
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2025 31 Dec 2024
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2025 31 Dec 2024
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2025 31 Dec 2024
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2025 31 Dec 2024
4 Open 4 document View SEC filing for 4 FORM 4 19 Dec 2024 18 Dec 2024
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 16 Dec 2024 30 Sep 2024 001-31921
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 16 Dec 2024 16 Dec 2024 001-31921
S-8 Open S-8 document | Open XBRL data View SEC filing for S-8 S-8 13 Nov 2024 333-283200
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 12 Nov 2024 005-79419
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 08 Nov 2024 005-79419
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 04 Nov 2024 005-79419
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 30 Oct 2024 30 Jun 2024 001-31921
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 30 Oct 2024 29 Oct 2024 001-31921
10-Q/A Open 10-Q/A document | Open XBRL data View SEC filing for 10-Q/A 10-Q/A 30 Oct 2024 31 Mar 2024 001-31921
10-K/A Open 10-K/A document | Open XBRL data View SEC filing for 10-K/A 10-K/A 29 Oct 2024 30 Sep 2023 001-31921
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 23 Oct 2024 005-79419
4 Open 4 document View SEC filing for 4 FORM 4 17 Oct 2024 15 Oct 2024
4 Open 4 document View SEC filing for 4 FORM 4 17 Oct 2024 15 Oct 2024
4 Open 4 document View SEC filing for 4 FORM 4 17 Oct 2024 15 Oct 2024
4 Open 4 document View SEC filing for 4 FORM 4 17 Oct 2024 15 Oct 2024
4 Open 4 document View SEC filing for 4 FORM 4 17 Oct 2024 15 Oct 2024
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 17 Oct 2024 005-79419
4 Open 4 document View SEC filing for 4 FORM 4 01 Oct 2024 30 Sep 2024
4 Open 4 document View SEC filing for 4 FORM 4 01 Oct 2024 30 Sep 2024
4 Open 4 document View SEC filing for 4 FORM 4 01 Oct 2024 30 Sep 2024
4 Open 4 document View SEC filing for 4 FORM 4 01 Oct 2024 30 Sep 2024
4 Open 4 document View SEC filing for 4 FORM 4 01 Oct 2024 30 Sep 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 19 Sep 2024 13 Sep 2024 001-31921
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 19 Sep 2024 005-79419
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 17 Sep 2024 17 Sep 2024 001-31921
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 16 Sep 2024 005-79419
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 16 Aug 2024 12 Aug 2024 001-31921
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q NT 10-Q 09 Aug 2024 30 Jun 2024 001-31921
4 Open 4 document View SEC filing for 4 4 02 Aug 2024 01 Aug 2024
3 Open 3 document View SEC filing for 3 3 02 Aug 2024 01 Aug 2024
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 02 Aug 2024 005-79419
SD Open SD document | Open XBRL data View SEC filing for SD SD 19 Jul 2024 001-31921
11-K Open 11-K document View SEC filing for 11-K 11-K 12 Jul 2024 31 Dec 2023 001-31921
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 03 Jul 2024 28 Jun 2024 001-31921
3 Open 3 document View SEC filing for 3 FORM 3 02 Jul 2024 01 Jul 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 01 Jul 2024 01 Jul 2024 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2024 28 Jun 2024
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2024 28 Jun 2024
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2024 28 Jun 2024
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2024 28 Jun 2024
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2024 28 Jun 2024
NT 11-K Open NT 11-K document View SEC filing for NT 11-K NT 11-K 28 Jun 2024 31 Dec 2023 001-31921
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 25 Jun 2024 21 Jun 2024 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 11 Jun 2024 07 Jun 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 10 Jun 2024 07 Jun 2024 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 21 May 2024 18 May 2024
4 Open 4 document View SEC filing for 4 FORM 4 21 May 2024 18 May 2024
4 Open 4 document View SEC filing for 4 FORM 4 21 May 2024 18 May 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 17 May 2024 16 May 2024 001-31921
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 15 May 2024 31 Mar 2024 001-31921
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q NT 10-Q 10 May 2024 31 Mar 2024 001-31921
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 07 May 2024 07 May 2024 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 29 Apr 2024 08 Apr 2024
4 Open 4 document View SEC filing for 4 FORM 4 01 Apr 2024 31 Mar 2024
4 Open 4 document View SEC filing for 4 FORM 4 01 Apr 2024 31 Mar 2024
4 Open 4 document View SEC filing for 4 FORM 4 01 Apr 2024 31 Mar 2024
4 Open 4 document View SEC filing for 4 FORM 4 01 Apr 2024 31 Mar 2024
4 Open 4 document View SEC filing for 4 FORM 4 01 Apr 2024 31 Mar 2024
4 Open 4 document View SEC filing for 4 FORM 4 01 Apr 2024 31 Mar 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 27 Mar 2024 27 Mar 2024 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 22 Mar 2024 20 Mar 2024
4 Open 4 document View SEC filing for 4 FORM 4 22 Mar 2024 20 Mar 2024
4 Open 4 document View SEC filing for 4 FORM 4 22 Mar 2024 20 Mar 2024
3 Open 3 document View SEC filing for 3 FORM 3 14 Mar 2024 05 Mar 2024
3 Open 3 document View SEC filing for 3 FORM 3 14 Mar 2024 05 Mar 2024
3 Open 3 document View SEC filing for 3 3 12 Mar 2024 05 Mar 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Mar 2024 05 Mar 2024 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 07 Mar 2024 05 Mar 2024
4 Open 4 document View SEC filing for 4 FORM 4 07 Mar 2024 05 Mar 2024
4 Open 4 document View SEC filing for 4 FORM 4 07 Mar 2024 05 Mar 2024
4 Open 4 document View SEC filing for 4 FORM 4 07 Mar 2024 05 Mar 2024
4 Open 4 document View SEC filing for 4 FORM 4 07 Mar 2024 05 Mar 2024
4 Open 4 document View SEC filing for 4 FORM 4 07 Mar 2024 05 Mar 2024
3 Open 3 document View SEC filing for 3 FORM 3 05 Mar 2024 21 Feb 2024
144/A Open 144/A document View SEC filing for 144/A 29 Feb 2024 001-31921
144 Open 144 document View SEC filing for 144 27 Feb 2024 001-31921
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 21 Feb 2024 21 Feb 2024 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 20 Feb 2024 15 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 20 Feb 2024 15 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 20 Feb 2024 15 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 20 Feb 2024 15 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 20 Feb 2024 15 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 20 Feb 2024 15 Feb 2024
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G/A 13 Feb 2024 005-79419
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 Feb 2024 31 Dec 2023 001-31921
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 07 Feb 2024 07 Feb 2024 001-31921
DEF 14A Open DEF 14A document | Open XBRL data View SEC filing for DEF 14A COMPASS MINERALS INTERNATIONAL INC - DEF 14A 29 Jan 2024 05 Mar 2024 001-31921
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 25 Jan 2024 005-79419
4 Open 4 document View SEC filing for 4 FORM 4 24 Jan 2024 22 Jan 2024
4 Open 4 document View SEC filing for 4 FORM 4 22 Jan 2024 18 Jan 2024
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 22 Jan 2024 005-79419
4 Open 4 document View SEC filing for 4 FORM 4 19 Jan 2024 17 Jan 2024
4 Open 4 document View SEC filing for 4 FORM 4 17 Jan 2024 13 Jan 2024
4 Open 4 document View SEC filing for 4 FORM 4 17 Jan 2024 13 Jan 2024
4 Open 4 document View SEC filing for 4 FORM 4 17 Jan 2024 13 Jan 2024
4 Open 4 document View SEC filing for 4 FORM 4 17 Jan 2024 13 Jan 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 16 Jan 2024 16 Jan 2024 001-31921
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 16 Jan 2024 15 Jan 2024 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2024 31 Dec 2023
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2024 31 Dec 2023
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2024 31 Dec 2023
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2024 31 Dec 2023
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2024 31 Dec 2023
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2024 31 Dec 2023
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2024 31 Dec 2023
4 Open 4 document View SEC filing for 4 FORM 4 21 Dec 2023 20 Dec 2023
4 Open 4 document View SEC filing for 4 FORM 4 21 Dec 2023 20 Dec 2023
4 Open 4 document View SEC filing for 4 FORM 4 21 Dec 2023 20 Dec 2023
4 Open 4 document View SEC filing for 4 FORM 4 21 Dec 2023 20 Dec 2023
4 Open 4 document View SEC filing for 4 FORM 4 20 Dec 2023 18 Dec 2023
3 Open 3 document View SEC filing for 3 FORM 3 20 Dec 2023 18 Dec 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 19 Dec 2023 18 Dec 2023 001-31921
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 07 Dec 2023 01 Dec 2023 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 05 Dec 2023 01 Dec 2023
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 29 Nov 2023 30 Sep 2023 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 20 Nov 2023 17 Nov 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 16 Nov 2023 16 Nov 2023 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 17 Oct 2023 15 Oct 2023
4 Open 4 document View SEC filing for 4 FORM 4 17 Oct 2023 15 Oct 2023
4 Open 4 document View SEC filing for 4 FORM 4 17 Oct 2023 15 Oct 2023
4 Open 4 document View SEC filing for 4 FORM 4 17 Oct 2023 15 Oct 2023
4 Open 4 document View SEC filing for 4 FORM 4 17 Oct 2023 15 Oct 2023
4 Open 4 document View SEC filing for 4 FORM 4 17 Oct 2023 15 Oct 2023
4 Open 4 document View SEC filing for 4 FORM 4 03 Oct 2023 30 Sep 2023
4 Open 4 document View SEC filing for 4 FORM 4 03 Oct 2023 30 Sep 2023
4 Open 4 document View SEC filing for 4 FORM 4 03 Oct 2023 30 Sep 2023
4 Open 4 document View SEC filing for 4 FORM 4 03 Oct 2023 30 Sep 2023
4 Open 4 document View SEC filing for 4 FORM 4 03 Oct 2023 30 Sep 2023
4 Open 4 document View SEC filing for 4 FORM 4 03 Oct 2023 30 Sep 2023
4 Open 4 document View SEC filing for 4 FORM 4 03 Oct 2023 30 Sep 2023
EFFECT Open EFFECT document View SEC filing for EFFECT 29 Sep 2023 333-274622
424B3 Open 424B3 document View SEC filing for 424B3 424B3 29 Sep 2023 333-274622
CORRESP Open CORRESP document View SEC filing for CORRESP 29 Sep 2023
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 29 Sep 2023
4 Open 4 document View SEC filing for 4 FORM 4 21 Sep 2023 20 Sep 2023
4 Open 4 document View SEC filing for 4 FORM 4 21 Sep 2023 20 Sep 2023
4 Open 4 document View SEC filing for 4 FORM 4 21 Sep 2023 20 Sep 2023
4 Open 4 document View SEC filing for 4 FORM 4 21 Sep 2023 20 Sep 2023
4 Open 4 document View SEC filing for 4 FORM 4 21 Sep 2023 21 Sep 2023
S-3 Open S-3 document View SEC filing for S-3 S-3 21 Sep 2023 333-274622
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 21 Sep 2023 21 Sep 2023 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 05 Sep 2023 24 Aug 2023
4 Open 4 document View SEC filing for 4 FORM 4 22 Aug 2023 18 Aug 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 14 Aug 2023 11 Aug 2023 001-31921
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 Aug 2023 30 Jun 2023 001-31921
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Aug 2023 08 Aug 2023 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 12 Jul 2023 11 Jul 2023
4 Open 4 document View SEC filing for 4 FORM 4 05 Jul 2023 30 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 05 Jul 2023 30 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 05 Jul 2023 30 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 05 Jul 2023 30 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 05 Jul 2023 30 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 05 Jul 2023 30 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 05 Jul 2023 30 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 05 Jul 2023 30 Jun 2023
8-K/A Open 8-K/A document | Open XBRL data View SEC filing for 8-K/A 8-K/A 30 Jun 2023 15 Feb 2023 001-31921
11-K Open 11-K document View SEC filing for 11-K 11-K 29 Jun 2023 31 Dec 2022 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 22 Jun 2023 20 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 22 Jun 2023 20 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 22 Jun 2023 20 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 22 Jun 2023 20 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 22 Jun 2023 20 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 22 May 2023 18 May 2023
4 Open 4 document View SEC filing for 4 FORM 4 10 May 2023 09 May 2023
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 May 2023 31 Mar 2023 001-31921
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 09 May 2023 09 May 2023 001-31921
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 09 May 2023 05 May 2023 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 05 May 2023 03 May 2023
3 Open 3 document View SEC filing for 3 FORM 3 05 May 2023 03 May 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 05 May 2023 05 May 2023 001-31921
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 04 May 2023 03 May 2023 001-31921
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G/A 10 Apr 2023 005-79419
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 04 Apr 2023 04 Apr 2023 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 04 Apr 2023 31 Mar 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 04 Apr 2023 29 Mar 2023 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 04 Apr 2023 31 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 04 Apr 2023 31 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 04 Apr 2023 31 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 04 Apr 2023 31 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 04 Apr 2023 31 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 04 Apr 2023 31 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 28 Mar 2023 24 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 22 Mar 2023 20 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 22 Mar 2023 20 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 22 Mar 2023 20 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 22 Mar 2023 20 Mar 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 21 Feb 2023 15 Feb 2023 001-31921
4 Open 4 document View SEC filing for 4 FORM 4 16 Feb 2023 14 Feb 2023
4 Open 4 document View SEC filing for 4 FORM 4 16 Feb 2023 14 Feb 2023
4 Open 4 document View SEC filing for 4 FORM 4 16 Feb 2023 14 Feb 2023
4 Open 4 document View SEC filing for 4 FORM 4 16 Feb 2023 14 Feb 2023
4 Open 4 document View SEC filing for 4 FORM 4 16 Feb 2023 14 Feb 2023
4 Open 4 document View SEC filing for 4 FORM 4 16 Feb 2023 14 Feb 2023
4 Open 4 document View SEC filing for 4 FORM 4 16 Feb 2023 15 Feb 2023
4 Open 4 document View SEC filing for 4 FORM 4 16 Feb 2023 15 Feb 2023
4 Open 4 document View SEC filing for 4 FORM 4 16 Feb 2023 15 Feb 2023
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G/A 09 Feb 2023 005-79419
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 08 Feb 2023 005-79419
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 07 Feb 2023 31 Dec 2022 001-31921
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10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K ANNUAL REPORT 27 Feb 2018 31 Dec 2017 001-31921
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4 Open 4 document View SEC filing for 4 FORM 4 05 Jul 2017 30 Jun 2017
4 Open 4 document View SEC filing for 4 FORM 4 05 Jul 2017 30 Jun 2017
4 Open 4 document View SEC filing for 4 FORM 4 05 Jul 2017 30 Jun 2017
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8-K/A Open 8-K/A document View SEC filing for 8-K/A 8-K/A 04 May 2017 02 May 2017 001-31921
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About this filer

COMPASS MINERALS INTERNATIONAL INC files with the SEC under CIK 0001227654. This page aggregates EDGAR filings and related ownership activity.

Industry: Mining & Quarrying Of Nonmetallic Minerals (No Fuels).

See insider transactions for this issuer.

FAQ

What is a CIK?
A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?
New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?
Updates follow new EDGAR submissions and periodic data refreshes.

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