Nichols Benjamin S. 4

What Happened

• Benjamin S. Nichols, Chief Commercial Officer of Compass Minerals (CMP), had restricted stock units (RSUs) vest and convert into 737 shares on 2026-05-13. Of those, 247 shares were withheld to cover tax withholding obligations at $30.21 per share, totaling $7,462. The RSU conversion shows an acquisition of 737 shares at $0.00 (typical for RSU settlement); the withholding is reported as a disposal (tax payment).

Key Details

• Transaction date: 2026-05-13; filing date: 2026-05-14 (filed next day).
• Converted/Acquired: 737 shares via RSU vesting (exercise/conversion code M) at $0.00.
• Withheld/Disposed for taxes: 247 shares at $30.21, value $7,462 (code F for tax withholding).
• Another reported derivative disposition (737 shares) reflects the cancellation/settlement of the RSUs upon conversion (reported as derivative).
• Shares owned after the transaction: not specified in the provided filing data.
• Footnotes: F1 = shares withheld to satisfy tax withholding; F3 = each RSU equals one share; F4 = RSUs vest in three equal installments beginning one year after grant and ending May 13, 2028. (F2 in the filing references a 401(k) statement as of 10/31/2025 and is not directly tied to these RSU transactions.)

Context

• This was an RSU vesting/settlement event, not an open-market purchase. The withholding of shares to cover taxes is routine and does not necessarily indicate a directional view by the insider.
• Exercise/conversion at $0.00 confirms these were RSU settlements (no cash option exercise price). The withholding (disposal) is a cashless-like step to satisfy tax obligations.