Ashley Ward - 15 Oct 2025 Form 4 Insider Report for COMPASS MINERALS INTERNATIONAL INC (CMP)

Role
Chief Accounting Officer
Signature
/s/ Jared Campbell, by power of attorney
Issuer symbol
CMP
Transactions as of
15 Oct 2025
Net transactions value
-$14,901
Form type
4
Filing time
16 Oct 2025, 17:06:28 UTC
Previous filing
05 Feb 2025
Next filing
26 Nov 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Ward Ashley Chief Accounting Officer C/O COMPASS MINERALS, 9900 WEST 109TH STREET, SUITE 100, OVERLAND PARK /s/ Jared Campbell, by power of attorney 16 Oct 2025 0002029093

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CMP Common Stock Options Exercise $0 +2,598 $0.000000 2,598 15 Oct 2025 Direct
transaction CMP Common Stock Tax liability $14,901 -763 -29% $19.53 1,835 15 Oct 2025 Direct F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction CMP Restricted Stock Unit Options Exercise $0 -2,598 -33% $0.000000 5,196 15 Oct 2025 Common Stock 2,598 Direct F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
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.
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.