Patrick James Merrin - 24 Nov 2025 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: 24 Nov 2025
Net transactions value: $0
Form type: 4
Filing time: 26 Nov 2025, 16:04:44 UTC
Previous filing: 05 Mar 2025
Next filing: 04 Mar 2026
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	26 Nov 2025	0002058405

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	+32,268		$0.000000	32,268	24 Nov 2025	Common Stock	32,268		Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each restricted stock unit represents a contingent right to receive one share of Issuer common stock.
F2	Restricted stock units vest in three equal annual installments, beginning on the first anniversary of the grant date and ending on November 24, 2028.