| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Reece Joseph E | 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 | 0001659413 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CMP | Common Stock | Award | $0 | +2,260 | +3.3% | $0.000000 | 70,327 | 31 Dec 2025 | Direct | F1 |
| holding | CMP | Common Stock | 21,000 | 31 Dec 2025 | By Trust |
| Id | Content |
|---|---|
| F1 | Represents deferred stock units granted by the Issuer in connection with the Reporting Person's service as a director. |