Form 4 for CMP COMPASS MINERALS INTERNATIONAL INC
Accepted 2026-07-29 17:29:18 ET · period of report 2026-07-28 · accession 0001227654-26-000042 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-07-29 17:29 | 2026-07-28 | CMP | Ward Ashley | CAO | M - OptEx | $0.00 | +8,333 | 10.2K | +454% | $0 |
| D | 2026-07-29 17:29 | 2026-07-28 | CMP | Ward Ashley | CAO | F - Tax | $29.69 | -2,443 | 7,725 | -24% | -$72.5K |
| D | 2026-07-29 17:29 | 2026-07-28 | CMP | Ward Ashley | CAO | M - OptEx | $0.00 | -8,333 | 0 | -100% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-07-28 | M | A | 8,333 | $0.00 | 10,168 | D | — | — | |
| 2 | Common | Common Stock | 2026-07-28 | F | D | 2,443 | $29.69 | 7,725 | D | — | — | (F1) Represents the number of shares withheld to satisfy tax withholding obligations in connection with the vesting and release of the restricted stock units listed in Table II. |
| 3 | Derivative | Restricted Stock Unit | 2026-07-28 | M | D | 8,333 | $0.00 | 0 | D | — · — to 2026-07-28 | 8,333 Common Stock | (F2) Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. (F3) Restricted stock units vest on July 28, 2026. |