22 insiders reported 203 Form 4 transactions for CLEAN HARBORS INC (CLH) over the past 18 months (most recent 2026-07-06). Recent activity: GERSTENBERG ERIC W (CO-CEO) Sell 564 shares, MCKIM ALAN S (EXEC CHAIR, CTO.) Sell 1,343 shares, Weber Brian P (EVP (CHESI)) Sell 814 shares, Dugas Eric J. (EVP CHIEF FINANCIAL OFFICER) Sell 447 shares, Gabriel Sharon M. (EVP/CIO (CHESI)) Sell 359 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-06 | GERSTENBERG ERIC W | CO-CEO | Sell | 564 | $163,977 |
| 2026-07-06 | MCKIM ALAN S | EXEC CHAIR, CTO. | Sell | 1,343 | $390,464 |
| 2026-07-06 | Weber Brian P | EVP (CHESI) | Sell | 814 | $236,662 |
| 2026-07-06 | Dugas Eric J. | EVP CHIEF FINANCIAL OFFICER | Sell | 447 | $129,961 |
| 2026-07-06 | Gabriel Sharon M. | EVP/CIO (CHESI) | Sell | 359 | $104,376 |
| 2026-07-06 | Underwood Rebecca | PRESIDENT & EVP FACILITIES | Sell | 311 | $90,420 |
| 2026-07-06 | Geer Charles H. II | EVP, Industrial Services | Sell | 40 | $11,630 |
| 2026-06-03 | Diderich Jeroen | EVP&President of Sales&Service | Sell | 1,717 | $482,477 |
| 2026-05-22 | Welch John R. | Director | Buy | 652 | $0 |
| 2026-05-22 | Robertson Andrea | Director | Buy | 652 | $0 |
| 2026-05-22 | Willett Robert | Director | Buy | 652 | $0 |
| 2026-05-22 | Stewart Shelley JR | Director | Buy | 652 | $0 |
| 2026-05-22 | GALANTE EDWARD G | Director | Buy | 652 | $0 |
| 2026-05-22 | States Lauren | Director | Buy | 652 | $0 |
| 2026-05-22 | Reed Marcy L. | Director | Buy | 652 | $0 |
| 2026-05-22 | Polito Karyn | Director | Buy | 652 | $0 |
| 2026-05-22 | PRESTON JOHN T | Director | Buy | 652 | $0 |
| 2026-05-22 | Quirk Alison A. | Director | Buy | 652 | $0 |
| 2026-05-14 | Polito Karyn | Director | Buy | 460 | $135,760 |
| 2026-05-13 | Polito Karyn | Director | Buy | 460 | $135,760 |
| 2026-05-12 | Robertson Andrea | Director | Sell | 342 | $0 |
| 2026-03-19 | GERSTENBERG ERIC W | CO-CEO | Sell | 1,000 | $293,000 |
| 2026-03-19 | Reed Marcy L. | Director | Sell | 836 | $240,718 |
| 2026-03-17 | Battles Michael Louis | CO-CEO | Sell | 2,166 | $0 |
| 2026-03-17 | Battles Michael Louis | CO-CEO | Sell | 1,148 | $331,692 |
Source: SEC Form 4 filings · as of 2026-07-06