As of November 6, 2026, Compass Minerals International, Inc. is a publicly traded company (NYSE: CMP); its largest reported holder is BlackRock, with 6.1% on Schedule 13G/A of April 27, 2026, then State Street (5.5%). The largest insider holding is Joseph E. Reece, a director, with 118,372 shares (0.28% of shares outstanding), per Form 4 of October 1, 2026 (Schedule 13G/A, April 27, 2026).
Is this your company?
About to sign with, pay or invest in Compass Minerals International, Inc.? See the free Snapshot first.
Free to see. No signup.
Is Compass Minerals International, Inc. a real, registered company?
- Compass Minerals International, Inc. files with the SEC under CIK 1227654 (its SEC filings).
- Its shares are listed under the ticker CMP on NYSE (SEC company record).
- Incorporated in Delaware; business address in Overland Park, Kansas, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under Compass Minerals International, Inc. in our court records and SEC 8-K records (as of 2026-11-06).
- Leadership changes: the latest reported is Brett Teuscher, Chief Accounting Officer (Form 8-K filed 2026-10-28). Check you are dealing with the people now in charge.
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names American Century Investments (filed 2026-08-14).
Who are Compass Minerals International, Inc.'s owners and officers?
Compass Minerals International, Inc.: incorporated in Delaware; business address in Overland Park, Kansas; industry Mining & Quarrying of Nonmetallic Minerals (No Fuels) (Form D, 2026-10-28).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G, 2026-08-14 | American Century Investment Management, Inc. | 5.4% |
| Schedule 13G, 2026-05-12 | State Street Corporation | 5.5% |
| Schedule 13G/A, 2026-04-27 | Blackrock, Inc. | 6.1% |
| Schedule 13G/A, 2026-03-26 | The Vanguard Group | 0% |
| Schedule 13G, 2026-02-09 | State Street Corporation | 4.9% |
| Schedule 13G, 2025-11-18 | M Partners Fund LP | 5.49% |
| Schedule 13G, 2025-11-10 | State Street Corporation | 5.5% |
| Schedule 13G/A, 2025-10-30 | The Vanguard Group | 6.65% |
| Schedule 13G/A, 2025-08-14 | Gumshoe Capital Management LLC | 3.2% |
| Schedule 13G/A, 2025-07-17 | Blackrock, Inc. | 8.2% |
Questions about who owns Compass Minerals International, Inc.
Who owns Compass Minerals International, Inc.?
On this page, 4 holders' latest ownership filings report 5% or more of Compass Minerals International, Inc.: Blackrock, Inc. (6.1%, Schedule 13G/A, filed 2026-04-27), State Street Corporation (5.5%, Schedule 13G, filed 2026-05-12), M Partners Fund LP (5.49%, Schedule 13G, filed 2025-11-18) and American Century Investment Management, Inc. (5.4%, Schedule 13G, filed 2026-08-14).
Who are the largest shareholders of Compass Minerals International, Inc.?
By the share each holder's latest filing reports, the largest holders of Compass Minerals International, Inc. on this page are Blackrock, Inc. (6.1%), State Street Corporation (5.5%) and M Partners Fund LP (5.49%).
When did Blackrock, Inc. buy into Compass Minerals International, Inc.?
The filings give report dates, not purchase dates. The earliest filing from Blackrock, Inc. on this page is the Schedule 13G/A, filed 2025-07-17, reporting 8.2%; its latest, Schedule 13G/A filed 2026-04-27, reports 6.1%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 10 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
Want the whole picture on Compass Minerals International, Inc.?
Example from a real report (our sample on Target): “The Q2 2026 earnings report, published August 19, 2026, showed adjusted EPS of $2.46 against an expected $2.33” Source: CNBC
A Full Report on Compass Minerals International, Inc.: verified, sourced, every claim cited, ready in a few minutes. See pricing.
What the Full Report on Compass Minerals International, Inc. covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
18 cited sources found
Plus the sections for what you are deciding, which you pick after ordering.
A real finished report, first screen. Opens in a new tab.
| Filed | Person | Role | Change | Effective |
|---|---|---|---|---|
| Form 8-K, 2026-10-28 | Brett Teuscher | Chief Accounting Officer | appointed | |
| Form 8-K, 2026-08-05 | Brandon Risner | Chief Operating Officer | appointed | 2026-08-03 |
Which insiders own Compass Minerals International, Inc. shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , a director: 118,372 shares (0.28% of shares outstanding), 97,372 held directly and 21,000 indirectly (Form 4, 2026-10-01).
- , the chief executive and president: 96,512 shares (0.23% of shares outstanding) (Form 4, 2026-10-19).
- , a director: 58,715 shares (0.14% of shares outstanding), held indirectly through a walker joint revocable trust (Form 4, 2026-03-09).
- , a director: 47,093 shares (0.11% of shares outstanding) (Form 4, 2026-10-01).
- , a director: 43,152 shares (0.10% of shares outstanding) (Form 4, 2026-03-09).
Shares outstanding: 41,980,874 as of 2026-08-03, from the company's latest SEC cover page.
How much has Compass Minerals International, Inc. raised?
No fundraising or offering filing from Compass Minerals International, Inc. is on file with us.
Keep reading
More on Compass Minerals International, Inc. and the records around it.
Compass Minerals International, Inc. elsewhere on the record
- 5%+ stake filings Aug 2026
- Leadership changes Aug 2026
Companies that share a holder
- Gumshoe Capital Management LLC also filed stake reports on 1 other company: SITE Centers Corp. (Mar 2026)
- M Partners Fund LP also filed stake reports on 2 other companies: Civeo Corporation (Nov 2025)
- American Century ETF Trust also filed stake reports on 83 other companies: Visteon Corporation (Oct 2026), MarineMax, Inc. (Sep 2026), AdvanSix Inc. (Aug 2026)
Related pages
Filings, cases and notices link to their records. A not-found line names the records searched; it is not proof of absence.
Not for employment, credit, insurance or tenancy decisions.
Cite this page
https://mentionfox.com/who-owns/compass-minerals-international