15 insiders reported 64 Form 4 transactions for COMPASS MINERALS INTERNATIONAL INC (CMP) over the past 18 months (most recent 2026-07-29). Recent activity: Ward Ashley (Chief Accounting Officer) Buy 8,333 shares, Ward Ashley (Chief Accounting Officer) Sell 2,443 shares, DEALY RICHARD P (Director) Buy 944 shares, Reece Joseph E (Director) Buy 1,205 shares, Safran David (Director) Buy 804 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-29 | Ward Ashley | Chief Accounting Officer | Buy | 8,333 | $0 |
| 2026-07-29 | Ward Ashley | Chief Accounting Officer | Sell | 2,443 | $72,533 |
| 2026-07-01 | DEALY RICHARD P | Director | Buy | 944 | $0 |
| 2026-07-01 | Reece Joseph E | Director | Buy | 1,205 | $0 |
| 2026-07-01 | Safran David | Director | Buy | 804 | $0 |
| 2026-06-26 | Nichols Benjamin S. | Chief Commercial Officer | Buy | 2,542 | $0 |
| 2026-06-26 | Nichols Benjamin S. | Chief Commercial Officer | Sell | 747 | $21,409 |
| 2026-05-19 | Nichols Benjamin S. | Chief Commercial Officer | Buy | 685 | $0 |
| 2026-05-19 | Nichols Benjamin S. | Chief Commercial Officer | Sell | 195 | $5,649 |
| 2026-05-14 | Nichols Benjamin S. | Chief Commercial Officer | Buy | 737 | $0 |
| 2026-05-14 | Nichols Benjamin S. | Chief Commercial Officer | Sell | 247 | $7,462 |
| 2026-03-09 | Reece Joseph E | Director | Buy | 22,322 | $0 |
| 2026-03-09 | Miller Melissa M | Director | Buy | 11,905 | $0 |
| 2026-03-09 | Joyce Gareth T | Director | Buy | 11,905 | $0 |
| 2026-03-09 | WALKER LORI A | Director | Buy | 11,905 | $0 |
| 2026-03-09 | DEALY RICHARD P | Director | Buy | 11,905 | $0 |
| 2026-03-04 | Merrin Patrick James | Chief Operations Officer | Buy | 18,525 | $0 |
| 2026-03-04 | Merrin Patrick James | Chief Operations Officer | Sell | 5,003 | $123,474 |
| 2026-01-29 | Roberts Mark Lawrence | Director | Buy | 196 | $0 |
| 2026-01-29 | Safran David | Director | Buy | 181 | $0 |
| 2026-01-29 | Fjellman Peter | Chief Financial Officer | Buy | 8,321 | $0 |
| 2026-01-29 | Fjellman Peter | Chief Financial Officer | Sell | 2,720 | $70,448 |
| 2026-01-26 | Merle Denise M | Director | Buy | 220 | $0 |
| 2026-01-20 | DOWLING EDWARD C | President and CEO | Sell | 6,878 | $160,189 |
| 2026-01-20 | DOWLING EDWARD C | President and CEO | Buy | 22,350 | $0 |
Source: SEC Form 4 filings · as of 2026-07-29