Welcome to our dedicated page for COMPASS MINERALS INTERNATIONAL SEC filings (Ticker: CMP), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
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Compass Minerals International (CMP) reported an insider equity transaction by its Chief Accounting Officer on 10/15/2025. The officer’s restricted stock units converted to 2,598 shares of common stock at $0 per share (Code M). To cover taxes upon vesting, 763 shares were withheld at $19.53 (Code F), leaving 1,835 shares directly owned after the transactions.
Each RSU equals one share of common stock, and the award vests in three equal annual installments from October 15, 2025 through October 15, 2027. Following these transactions, the reporting person holds 5,196 restricted stock units as derivative securities.
Compass Minerals International (CMP) reported insider equity activity by its President and CEO (also a director) on 10/15/2025. 45,467 restricted stock units converted into common stock (transaction code M) at $0, and 15,189 shares were withheld at $19.53 to satisfy taxes (code F). Following these transactions, the insider directly beneficially owns 50,789 common shares.
The filing also shows 90,933 restricted stock units beneficially owned after the event, vesting in three equal annual installments from October 15, 2025 to October 15, 2027, and 4,882 deferred stock units related to director service.
Compass Minerals International reported a grant of 14,595 restricted stock units (RSUs) to Amy Tills, the Chief Human Resources Officer, executed on 09/11/2025. Each RSU converts to one share of common stock, so the award represents the right to receive 14,595 shares when vested. The first tranche vests on the first anniversary of the grant date, and the remaining units vest equally on 09/11/2027. The reported grant price is $0, indicating these are standard time‑based awards rather than purchases. The Form 4 was filed by a named filing agent under power of attorney on 10/09/2025.
Initial Form 3 filing for Compass Minerals International (CMP): An executive identified as Amy Tills (listed as Chief Human Resources Officer) reported an event dated 09/11/2025 and filed an initial Form 3 stating no securities are beneficially owned. The filing was signed by Deanne Larison, by power of attorney on 10/09/2025. This is an initial Section 16 disclosure showing the officer relationship but no direct or indirect ownership recorded on the form.
Joyce Gareth T, a director of Compass Minerals International, Inc. (CMP), reported a grant of 1,433 common stock units on 09/30/2025 issued as director compensation. The units were granted at a $0 purchase price and increased her beneficial ownership to 29,812 shares. The Form 4 was filed with a power of attorney signature on 10/02/2025. The filing expressly states the units represent common stock units granted for her service as a director and includes an Exhibit 24 power of attorney.
Compass Minerals (CMP) director Reece Joseph E received 2,312 deferred stock units on 09/30/2025 at no cash price as compensation for board service, increasing his direct beneficial ownership to 68,067 shares. The filing also shows an indirect holding of 21,000 shares held by a trust. The transaction was reported on Form 4 and signed by an attorney-in-fact on 10/02/2025. The filer notes the units represent deferred stock units granted in connection with director service.
Melissa M. Miller, a director of Compass Minerals International, was granted 1,465 common stock units on 09/30/2025 as compensation for board service. The transaction was recorded on a Form 4 filed under the issuer ticker CMP. The grant had a reported price of $0, consistent with issuance of stock units rather than a cash purchase, and increased the reporting person’s total beneficial ownership to 29,814 shares. The Form 4 was signed by a power of attorney on 10/02/2025 and includes an explanation that the units were granted in connection with director service.
Compass Minerals (CMP) director Lori A. Walker reported changes in her beneficial ownership on Form 4. The filing shows a 09/30/2025 grant of 1,563 common stock units to Ms. Walker with a $0 price, recorded as an acquisition tied to her director service, and a reported disposal of 3,053 common stock units (listed separately). After the reported acquisition, the filing shows Ms. Walker beneficially owns 42,229 shares indirectly through the Walker Joint Revocable Trust. The Form 4 was signed under power of attorney on 10/01/2025.
Compass Minerals (CMP) director Richard P. Dealy received 1,530 common stock units on 09/30/2025 as compensation for his service as a director. The units were granted at no cash price ($0) and increased his total beneficial ownership to 30,156 shares following the award. The Form 4 was filed as a single reporting person filing and signed by an attorney-in-fact on 10/01/2025. The filing explicitly states the units represent common stock units granted by the issuer in connection with the reporting person’s director service.
Compass Minerals International, Inc. reported that on August 15, 2025, the United States District Court for the District of Kansas preliminarily approved a settlement of two stockholder derivative actions involving the company and certain defendants. Under the court’s order, the company must publish a Notice of Pendency and Proposed Settlement of Derivative Actions and a Stipulation and Settlement Agreement, which are attached as exhibits and made available on its investor relations website. The defendants named in the actions expressly deny any and all claims asserted against them.