InsiderTrades

Form 4 for CMP COMPASS MINERALS INTERNATIONAL INC

Accepted 2025-10-16 00:00:00 ET · period of report 2025-10-15 · accession 0001227654-25-000180 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2025-10-16 2025-10-15 CMP Ward Ashley CAO F - Tax $19.53 -763 1,835 -29% -$14.9K
D 2025-10-16 2025-10-15 CMP Ward Ashley CAO M - OptEx $0.00 +2,598 2,598 New $0
D 2025-10-16 2025-10-15 CMP Ward Ashley CAO M - OptEx $0.00 -2,598 5,196 -33% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-10-15 F D 763 $19.53 1,835 D — — (F1) Represents the number of shares withheld to satisfy tax withholding obligations in connection with the vesting and release of the restricted stock units listed in Table II.
2 Common Common Stock 2025-10-15 M A 2,598 $0.00 2,598 D — —
3 Derivative Restricted Stock Unit 2025-10-15 M D 2,598 $0.00 5,196 D — · — to 2027-10-15 2,598 Common Stock (F2) Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. (F3) Restricted stock units vest in three equal annual installments, beginning on October 15, 2025 and ending on October 15, 2027.