Form 4 for CMP COMPASS MINERALS INTERNATIONAL INC
Accepted 2026-03-09 00:00:00 ET · period of report 2026-03-05 · accession 0001806395-26-000004 · 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 | 2026-03-09 | 2026-03-05 | CMP | Miller Melissa M | Dir | M - OptEx | $0.00 | +11.9K | 43.2K | +38% | $0 |
| D | 2026-03-09 | 2026-03-05 | CMP | Miller Melissa M | Dir | A - Grant | $0.00 | +5,032 | 5,032 | New | $0 |
| D | 2026-03-09 | 2026-03-05 | CMP | Miller Melissa M | Dir | M - OptEx | $0.00 | -11.9K | 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 | 2026-03-05 | M | A | 11,905 | $0.00 | 43,152 | D | — | — | |
| 2 | Derivative | Restricted Stock Unit | 2026-03-05 | A | A | 5,032 | $0.00 | 5,032 | D | $0.00 · 2027-03-04 to 2027-03-04 | 5,032 Common Stock | (F1) Represents annual grant of restricted stock units in connection with the Reporting Person's service as a director, which will vest on the earlier of (a) the day immediately preceding the Issuer's next annual meeting (as long as the meeting is held at least 50 weeks from the grant date) and (b) the first anniversary of the grant date. |
| 3 | Derivative | Restricted Stock Unit | 2026-03-05 | M | D | 11,905 | $0.00 | 0 | D | $0.00 · 2026-03-05 to 2026-03-05 | 11,905 Common Stock |