| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Nichols Benjamin S. | Chief Commercial Officer | C/O COMPASS MINERALS INTERNATIONAL, INC., 9900 WEST 109TH STREET, SUITE 100, OVERLAND PARK | /s/ Jared Campbell, Attorney-in-Fact | 2025-06-25 | 0002015089 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | CMP | Common Stock | 7.98K | Jun 24, 2025 | Direct | ||||||
| holding | CMP | Common Stock | 249 | Jun 24, 2025 | 401(k) Plan | F1 |
| 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 | +5.08K | $0.00 | 5.08K | Jun 24, 2025 | Common Stock | 5.08K | Direct | F2, F3 |
| Id | Content |
|---|---|
| F1 | The reported number is based on a 401(k) plan statement dated as of June 24, 2025. |
| F2 | Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. |
| F3 | Restricted stock units vest in two equal annual installments beginning on June 24, 2026 and ending on June 24, 2027 |