Amy Tills - 11 Sep 2025 Form 4 Insider Report for COMPASS MINERALS INTERNATIONAL INC (CMP)

Role
Chief Human Resources Officer
Signature
/s/ Deanne Larison, by power of attorney
Issuer symbol
CMP
Transactions as of
11 Sep 2025
Net transactions value
$0
Form type
4
Filing time
09 Oct 2025, 16:07:27 UTC
Next filing
26 Nov 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Tills Amy Chief Human Resources Officer C/O COMPASS MINERALS INTERNATIONAL, INC., 9900 W 109TH ST STE 100, OVERLAND PARK /s/ Deanne Larison, by power of attorney 09 Oct 2025 0002090688

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 +14,595 $0.000000 14,595 11 Sep 2025 Common Stock 14,595 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 The first tranche of these restricted stock units vest on the first anniversary of the grant date. The remaining tranche will continue to vest, equally, on September 11, 2027.