Who owns Compass Minerals International?

About

Compass Minerals produces salt and plant nutrition products such as sulfate of potash fertilizer, from sites in the U.S., Canada and the UK. It also offers records management services in the UK.

Mining & Quarrying of Nonmetallic Minerals (No Fuels) · Overland Park, Kansas

Source: COMPASS MINERALS INTERNATIONAL INC annual report (10-K) (filed 2025-12-12) ↗. Summary in our own words.

Billionaire holders

1. Charles Koch & familyIndustrials
   StakeCompass Minerals International (7,034,609 shares, ~$219.0M reported value) · as of Jun 2026

   source ↗

Each row is a sourced entry from that person’s profile. Stakes are as of the date shown, not today.

Recent SEC filings

No Form 4 insider trades in Compass Minerals International from the holders above in the last 90 days.

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Recent moves

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