Amy Tills, Chief Human Resources Officer of Compass Minerals International Inc (NYSE:CMP), filed a Form 4 on September 15, 2026, disclosing transactions in common stock and restricted stock units dated September 11, 2026.

Key Highlights

  • RSU vesting: 7,298 restricted stock units converted (transaction code M) into 7,298 shares of common stock at $0 on September 11, 2026.
  • Shares withheld for taxes: 2,142 shares were disposed of (transaction code F) at $24.80 per share to satisfy tax withholding obligations connected to the RSU vesting.
  • Remaining direct ownership: Following the transactions, Tills directly held 5,156 shares of common stock.
  • Remaining RSUs: 7,297 restricted stock units remain beneficially owned directly after the reported transaction.
  • Vesting schedule: The remaining tranche of restricted stock units will continue to vest, equally, on September 11, 2027, according to the filing.

RSU Conversion and Tax Withholding Details for Compass Minerals CHRO

According to the Form 4 filed with the SEC, Amy Tills, serving as Chief Human Resources Officer at Compass Minerals International Inc (NYSE:CMP), reported two transactions in common stock on September 11, 2026. The first was the conversion of 7,298 restricted stock units into an equal number of common shares at a price of $0, reflecting a standard RSU vesting event rather than an open-market purchase.

The filing further discloses that 2,142 of those shares were simultaneously withheld at a price of $24.80 per share. The filing's footnote states that this disposition "represents the number of shares withheld to satisfy tax withholding obligations in connection with the vesting and release of the restricted stock units." After these two transactions, Tills held 5,156 shares of common stock directly.

On the derivative securities side, the filing shows that 7,298 restricted stock units were converted under transaction code M, and 7,297 restricted stock units remain outstanding in Tills's direct beneficial ownership. The filing notes that each restricted stock unit represents a contingent right to receive one share of issuer common stock, and that the remaining tranche will continue to vest equally on September 11, 2027. The form was signed by Jared Campbell under power of attorney and dated September 15, 2026.

What Was Disclosed

The filing reported the vesting of 7,298 restricted stock units into common shares, the withholding of 2,142 shares at $24.80 for tax purposes, resulting in direct ownership of 5,156 common shares and 7,297 remaining restricted stock units for the issuer's CHRO.