5 Form 4 filings for CLH between 2026-07-20 and 2026-08-18, from 5 filers. 2 discretionary (2 sales, 0 purchases), 3 routine grant or withholding filings. None state a filing-level total — that aggregate began on 2026-08-17 — so each row below shows only its largest transaction. Prices ran $291 to $321.
| Filed | Filer | Role | Action | Shares largest txn | Price | Filing total | Txns |
|---|---|---|---|---|---|---|---|
| 2026-08-18 | GERSTENBERG ERIC W | CO-CEO | sold | 2,500 | $321.34 | — | — |
| 2026-08-12 | Battles Michael Louis | CO-CEO | — | 1,032 | $290.74 | — | — |
| 2026-08-11 | CURTIS GEORGE L | — | 1,757 | $290.74 | — | — | |
| 2026-08-03 | Robertson Andrea | sold | 789 | $314.01 | — | — | |
| 2026-07-20 | MCKIM ALAN S | EXEC CHAIR, CTO. | — | 1,265 | $310.58 | — | — |
| 5 filings · 5 filers · disclosed totals only | $0 (0/5) | — | |||||