EDWARD C. DOWLING - 18 Jan 2026 Form 4 Insider Report for COMPASS MINERALS INTERNATIONAL INC (CMP)

Role
President and CEO, Director
Signature
/s/ Deanne Larison, by power of attorney
Issuer symbol
CMP
Transactions as of
18 Jan 2026
Net transactions value
-$160,189
Form type
4
Filing time
20 Jan 2026, 17:26:30 UTC
Previous filing
26 Nov 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
DOWLING EDWARD C President and CEO, Director C/O COMPASS MINERALS INTERNATIONAL, INC., 9900 WEST 109TH STREET, SUITE 100, OVERLAND PARK /s/ Deanne Larison, by power of attorney 20 Jan 2026 0001210454

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CMP Common Stock Options Exercise $0 +22,350 +44% $0.000000 73,139 18 Jan 2026 Direct
transaction CMP Common Stock Tax liability $160,189 -6,878 -9.4% $23.29 66,261 18 Jan 2026 Direct F1
holding CMP Common Stock 4,882 18 Jan 2026 Direct F2

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 -22,350 -50% $0.000000 22,350 18 Jan 2026 Common Stock 22,350 Direct F3, F4
* 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 Represents deferred stock units granted by the Issuer in connection with the Reporting Person's service as a director.
F3 Each restricted stock unit represents a contingent right to receive one share of Issuer common stock.
F4 Restricted stock units vest in three equal installments, beginning on January 18, 2025 and ending on January 18, 2027.