Company · CIK 0001227654 · SIC 1400 — Mining & Quarrying of Nonmetallic Minerals (No Fuels) · NYSE
COMPASS MINERALS INTERNATIONAL INC · CMP
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 11, 2026 FMForm 4 → | Sep 15, 4:56 pm EDT | Amy TillsChief Human Resources Officer | 9,440 | $24.80 | $53,122 | 5,156 | — |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 11, 2026 MForm 4 → | Sep 15, 4:56 pm EDT | Amy TillsChief Human Resources Officer | 7,298 | — | — | 7,297 | — |