Compass Minerals (CMP) CHRO Amy Tills Converts 7,298 RSUs

What Happened

• Amy Tills, Chief Human Resources Officer of Compass Minerals International (CMP), had 7,298 restricted stock units (RSUs) convert into common shares on 2026-09-11. The RSU conversion (reported as a derivative exercise) had no exercise price ($0.00).
• To cover tax withholding, 2,142 of those shares were surrendered at an implied price of $24.80 per share, representing $53,122. After withholding, Tills received a net of 5,156 shares.

Key Details

• Transaction date: 2026-09-11; Form 4 filed: 2026-09-15 (filed within the required 2 business days).
• Conversion: 7,298 RSUs converted to 7,298 shares (exercise/conversion code M, $0.00 exercise price).
• Tax withholding: 2,142 shares withheld/disposed to satisfy tax obligations (code F) at $24.80/share, totaling $53,122.
• Net shares received: 7,298 − 2,142 = 5,156 shares.
• Shares owned after the transaction: not specified in the filing.
• Relevant footnotes from the filing:
  • F1: Withheld shares were used to satisfy tax withholding obligations on the vesting/release.
  • F2: Each RSU represents the contingent right to receive one share of common stock.
  • F3: Vesting schedule note — first tranche vests on the first anniversary of the grant date; remaining tranche vests equally on September 11, 2027.

Context

• This was a routine vesting/conversion of RSUs, not an open-market purchase or sale; withholding to cover taxes is common and does not necessarily indicate a view about the company’s prospects.
• The filing shows the RSUs were converted (derivative exercise) and shares withheld for taxes (a cashless withholding), which is a standard administrative step.