SEC Form 4 · Updated Daily
CMP
— COMPASS MINERALS INTERNATIONAL, INC. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| Reece Joseph E | Director | 95,670 | 2026-06-30 | A |
| DOWLING EDWARD C | Director · Officer | 66,261 | 2026-01-18 | F |
| WALKER LORI A | Director | 58,715 | 2026-03-05 | M |
| DEALY RICHARD P | Director | 45,760 | 2026-06-30 | A |
| Miller Melissa M | Director | 43,152 | 2026-03-05 | M |
| Joyce Gareth T | Director | 43,118 | 2026-03-05 | M |
| Nichols Benjamin S. | Officer | 15,988 | 2026-06-24 | F |
| Merrin Patrick James | Officer | 13,522 | 2026-03-03 | F |
| Ward Ashley | Officer | 7,725 | 2026-07-28 | F |
| Fjellman Peter | Officer | 5,601 | 2026-01-28 | F |
| Safran David | Director | 2,056 | 2026-06-30 | A |
| Merle Denise M | Director | 220 | 2025-12-31 | A |
| Roberts Mark Lawrence | Director | 196 | 2025-12-31 | A |
| Ball Russell David | Director | 186 | 2025-12-31 | A |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-07-28 | Ward Ashley | Option exercise (derivative) | 8,333 | $0.00 | 0 |
| 2026-07-28 | Ward Ashley | Tax withholding | 2,443 | $29.69 | 7,725 |
| 2026-07-28 | Ward Ashley | Option exercise | 8,333 | $0.00 | 10,168 |
| 2026-06-30 | Safran David | Grant / award | 804 | $0.00 | 2,056 |
| 2026-06-30 | DEALY RICHARD P | Grant / award | 944 | $0.00 | 45,760 |
| 2026-06-30 | Reece Joseph E | Grant / award | 1,205 | $0.00 | 95,670 |
| 2026-06-24 | Nichols Benjamin S. | Option exercise (derivative) | 2,542 | $0.00 | 2,542 |
| 2026-06-24 | Nichols Benjamin S. | Tax withholding | 747 | $28.66 | 15,988 |
| 2026-06-24 | Nichols Benjamin S. | Option exercise | 2,542 | $0.00 | 16,735 |
| 2026-05-18 | Nichols Benjamin S. | Option exercise (derivative) | 685 | $0.00 | 0 |
| 2026-05-18 | Nichols Benjamin S. | Tax withholding | 195 | $28.97 | 14,193 |
| 2026-05-18 | Nichols Benjamin S. | Option exercise | 685 | $0.00 | 14,388 |
| 2026-05-13 | Nichols Benjamin S. | Option exercise (derivative) | 737 | $0.00 | 1,473 |
| 2026-05-13 | Nichols Benjamin S. | Tax withholding | 247 | $30.21 | 13,703 |
| 2026-05-13 | Nichols Benjamin S. | Option exercise | 737 | $0.00 | 13,950 |
| 2026-03-31 | Safran David | Grant / award | 1,071 | $0.00 | 1,252 |
| 2026-03-31 | DEALY RICHARD P | Grant / award | 1,259 | $0.00 | 44,816 |
| 2026-03-31 | Reece Joseph E | Grant / award | 1,816 | $0.00 | 94,465 |
| 2026-03-05 | Miller Melissa M | Grant / award (derivative) | 5,032 | $0.00 | 5,032 |
| 2026-03-05 | Miller Melissa M | Option exercise (derivative) | 11,905 | $0.00 | 0 |
| 2026-03-05 | Miller Melissa M | Option exercise | 11,905 | $0.00 | 43,152 |
| 2026-03-05 | Joyce Gareth T | Grant / award (derivative) | 5,032 | $0.00 | 5,032 |
| 2026-03-05 | Joyce Gareth T | Option exercise (derivative) | 11,905 | $0.00 | 0 |
| 2026-03-05 | Joyce Gareth T | Option exercise | 11,905 | $0.00 | 43,118 |
| 2026-03-05 | Merle Denise M | Grant / award (derivative) | 5,032 | $0.00 | 5,032 |
| 2026-03-05 | Roberts Mark Lawrence | Grant / award (derivative) | 5,032 | $0.00 | 5,032 |
| 2026-03-05 | Safran David | Grant / award (derivative) | 5,032 | $0.00 | 5,032 |
| 2026-03-05 | Ball Russell David | Grant / award (derivative) | 5,032 | $0.00 | 5,032 |
| 2026-03-05 | Reece Joseph E | Grant / award (derivative) | 9,434 | $0.00 | 9,434 |
| 2026-03-05 | Reece Joseph E | Option exercise (derivative) | 22,322 | $0.00 | 0 |
| 2026-03-05 | Reece Joseph E | Option exercise | 22,322 | $0.00 | 92,649 |
| 2026-03-05 | WALKER LORI A | Option exercise (derivative) | 11,905 | $0.00 | 0 |
| 2026-03-05 | WALKER LORI A | Option exercise | 11,905 | $0.00 | 58,715 |
| 2026-03-05 | DEALY RICHARD P | Grant / award (derivative) | 5,032 | $0.00 | 5,032 |
| 2026-03-05 | DEALY RICHARD P | Option exercise (derivative) | 11,905 | $0.00 | 0 |
| 2026-03-05 | DEALY RICHARD P | Option exercise | 11,905 | $0.00 | 43,557 |
| 2026-03-03 | Merrin Patrick James | Option exercise (derivative) | 7,478 | $0.00 | 7,477 |
| 2026-03-03 | Merrin Patrick James | Option exercise (derivative) | 11,047 | $0.00 | 22,094 |
| 2026-03-03 | Merrin Patrick James | Tax withholding | 5,003 | $24.68 | 13,522 |
| 2026-03-03 | Merrin Patrick James | Option exercise | 18,525 | $0.00 | 18,525 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.