# COMPASS MINERALS INTERNATIONAL INC — DEFA14A

COMPASS MINERALS INTERNATIONAL INC of OVERLAND PARK, KS filed a DEFA14A with the SEC on 2021-04-02. Industry: Mining & Quarrying of  Nonmetallic Minerals (No Fuels).

## Filing

- Filed: 2021-04-02
- Form: DEFA14A
- Accession: 0001104659-21-045942
- Registrant: COMPASS MINERALS INTERNATIONAL INC
- CIK: 0001227654
- Industry (SIC): Mining & Quarrying of  Nonmetallic Minerals (No Fuels) (1400)
- State of incorporation: DE
- Location: OVERLAND PARK, KS

## Documents (4)

| Seq | Type | Description |
| --- | --- | --- |
| 1 | DEFA14A | DEFA14A |
| 2 | GRAPHIC | GRAPHIC |
| 3 | GRAPHIC | GRAPHIC |
| 4 | GRAPHIC | GRAPHIC |

## Filing timeline for this registrant (36)

_Showing 12 of 36 filings._

| Filed | Form |
| --- | --- |
| [2026-01-23](https://search.stillhousedata.com/proxy/0001308179-26-000020) | DEFA14A |
| [2026-01-23](https://search.stillhousedata.com/proxy/0001308179-26-000019) | DEF 14A |
| [2025-02-18](https://search.stillhousedata.com/proxy/0001227654-25-000038) | DEFA14A |
| [2025-01-23](https://search.stillhousedata.com/proxy/0001308179-25-000014) | DEFA14A |
| [2025-01-23](https://search.stillhousedata.com/proxy/0001308179-25-000013) | DEF 14A |
| [2024-01-29](https://search.stillhousedata.com/proxy/0001308179-24-000022) | DEF 14A |
| [2023-01-03](https://search.stillhousedata.com/proxy/0001308179-23-000005) | DEFA14A |
| [2023-01-03](https://search.stillhousedata.com/proxy/0001308179-23-000004) | DEF 14A |
| [2022-01-11](https://search.stillhousedata.com/proxy/0001104659-22-002915) | DEFA14A |
| [2022-01-11](https://search.stillhousedata.com/proxy/0001104659-22-002902) | DEF 14A |
| 2021-04-02 | DEFA14A |
| [2021-04-02](https://search.stillhousedata.com/proxy/0001104659-21-045825) | DEF 14A |

## More

- [CIK 1227654 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1227654&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/proxy/0001104659-21-045942.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.