Russell D. Ball - 18 Dec 2025 Form 4 Insider Report for COMPASS MINERALS INTERNATIONAL INC (CMP)

Role
Director
Signature
/s/ Deanne Larison, by power of attorney
Issuer symbol
CMP
Transactions as of
18 Dec 2025
Net transactions value
$0
Form type
4
Filing time
05 Jan 2026, 19:30:28 UTC
Previous filing
10 Mar 2025
Next filing
09 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Ball Russell David Director C/O COMPASS MINERALS INTERNATIONAL, INC., 9900 WEST 109TH STREET, SUITE 100, OVERLAND PARK /s/ Deanne Larison, by power of attorney 05 Jan 2026 0001299936

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CMP Common Stock Award $0 +186 $0.000000 186 31 Dec 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 Award $0 +1,348 $0.000000 1,348 18 Dec 2025 Common Stock 1,348 $0.000000 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents common stock units granted by the Issuer in connection with the Reporting Person's service as a director.
F2 Represents annual grant of restricted stock units in connection with the Reporting Person's service as a director, which will vest on the first anniversary of the grant date.