Patrick James Merrin - 03 Mar 2026 Form 4 Insider Report for COMPASS MINERALS INTERNATIONAL INC (CMP)

Role
Chief Operations Officer
Signature
/s/ Jared Campbell, by power of attorney
Issuer symbol
CMP
Transactions as of
03 Mar 2026
Net transactions value
$0
Form type
4
Filing time
04 Mar 2026, 17:06:42 UTC
Previous filing
26 Nov 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Merrin Patrick James Chief Operations Officer C/O COMPASS MINERALS INTERNATIONAL, INC., 9900 WEST 109TH STREET, SUITE 100, OVERLAND PARK /s/ Jared Campbell, by power of attorney 04 Mar 2026 0002058405

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CMP Common Stock Options Exercise +18,525 $0.000000* 18,525 03 Mar 2026 Direct
transaction CMP Common Stock Tax liability -5,003 -27% $24.68* 13,522 03 Mar 2026 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 -11,047 -33% $0.000000* 22,094 03 Mar 2026 Common Stock 11,047 Direct F2, F3
transaction CMP Restricted Stock Unit Options Exercise -7,478 -50% $0.000000* 7,477 03 Mar 2026 Common Stock 7,478 Direct F2, 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 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 the first anniversary of the grant date and ending on March 3, 2028.
F4 Restricted stock units vest in two equal annual installments, beginning on the first anniversary of the grant date and ending on March 3, 2027.