Clean Harbors (CLH) — insider trading
Industrials · NYSE
Clean Harbors (CLH) has 36 reported SEC Form 4 insider transactions in our data, including 1 open-market purchase and 6 open-market sales among the most recent 36 (latest 2026-08-14).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-08-14 | GERSTENBERG ERIC W | Officer (CO-CEO) | Open-market sale | 2,500 | $321.34 | $803.4K | Form 4 |
| 2026-08-03 | Robertson Andrea | Director | Open-market sale | 789 | $314.01 | $247.8K | Form 4 |
| 2026-07-17 | MCKIM ALAN S | Director, Officer (EXEC CHAIR, CTO.) | Shares withheld for taxes / exercise cost | 1,265 | $310.58 | $392.9K | Form 4 |
| 2026-07-01 | Dugas Eric J. | Officer (EVP CHIEF FINANCIAL OFFICER) | Shares withheld for taxes / exercise cost | 447 | $290.74 | $130.0K | Form 4/A |
| 2026-07-01 | GERSTENBERG ERIC W | Officer (CO-CEO) | Shares withheld for taxes / exercise cost | 564 | $290.74 | $164.0K | Form 4/A |
| 2026-07-01 | Battles Michael Louis | Director, Officer (CO-CEO) | Shares withheld for taxes / exercise cost | 1,032 | $290.74 | $300.0K | Form 4 |
| 2026-07-01 | CURTIS GEORGE L | Officer (EXEC. VICE PRESIDENT (CHESI)) | Shares withheld for taxes / exercise cost | 1,757 | $290.74 | $510.8K | Form 4 |
| 2026-07-01 | Dugas Eric J. | Officer (EVP CHIEF FINANCIAL OFFICER) | Shares withheld for taxes / exercise cost | 447 | $290.74 | $130.0K | Form 4 |
| 2026-07-01 | Geer Charles H. II | Officer (EVP, Industrial Services) | Shares withheld for taxes / exercise cost | 40 | $290.74 | $11.6K | Form 4 |
| 2026-07-01 | GERSTENBERG ERIC W | Officer (CO-CEO) | Shares withheld for taxes / exercise cost | 564 | $290.74 | $164.0K | Form 4 |
| 2026-07-01 | MCKIM ALAN S | Director, Officer (EXEC CHAIR, CTO.) | Shares withheld for taxes / exercise cost | 1,343 | $290.74 | $390.5K | Form 4 |
| 2026-07-01 | Underwood Rebecca | Officer (PRESIDENT & EVP FACILITIES) | Shares withheld for taxes / exercise cost | 311 | $290.74 | $90.4K | Form 4 |
| 2026-07-01 | Weber Brian P | Officer (EVP (CHESI)) | Shares withheld for taxes / exercise cost | 814 | $290.74 | $236.7K | Form 4 |
| 2026-07-01 | Gabriel Sharon M. | Officer (EVP/CIO (CHESI)) | Shares withheld for taxes / exercise cost | 359 | $290.74 | $104.4K | Form 4 |
| 2026-06-01 | Diderich Jeroen | Officer (EVP&President of Sales&Service) | Shares withheld for taxes / exercise cost | 1,717 | $281.00 | $482.5K | Form 4 |
| 2026-05-26 | States Lauren | Director | Open-market sale | 789 | $286.19 | $225.8K | Form 4 |
| 2026-05-20 | Polito Karyn | Director | Grant / award / vesting | 652 | — | $0 | Form 4 |
| 2026-05-20 | GALANTE EDWARD G | Director | Grant / award / vesting | 652 | — | $0 | Form 4 |
| 2026-05-20 | PRESTON JOHN T | Director | Grant / award / vesting | 652 | — | $0 | Form 4 |
| 2026-05-20 | Quirk Alison A. | Director | Grant / award / vesting | 652 | — | $0 | Form 4 |
| 2026-05-20 | Reed Marcy L. | Director | Grant / award / vesting | 652 | — | $0 | Form 4 |
| 2026-05-20 | Robertson Andrea | Director | Grant / award / vesting | 652 | — | $0 | Form 4 |
| 2026-05-20 | States Lauren | Director | Grant / award / vesting | 652 | — | $0 | Form 4 |
| 2026-05-20 | Stewart Shelley JR | Director | Grant / award / vesting | 652 | — | $0 | Form 4 |
| 2026-05-20 | Welch John R. | Director | Grant / award / vesting | 652 | — | $0 | Form 4 |
| 2026-05-20 | Willett Robert | Director | Grant / award / vesting | 652 | — | $0 | Form 4 |
| 2026-05-11 | Polito Karyn | Director | Open-market purchase | 460 | $295.13 | $135.8K | Form 4/A |
| 2026-05-11 | Polito Karyn | Director | Grant / award / vesting | 460 | $295.13 | $135.8K | Form 4 |
| 2026-05-11 | Robertson Andrea | Director | Bona fide gift | 342 | — | $0 | Form 4 |
| 2026-03-18 | GERSTENBERG ERIC W | Officer (CO-CEO) | Open-market sale | 1,000 | $293.00 | $293.0K | Form 4/A |
| 2026-03-13 | Dugas Eric J. | Officer (EVP CHIEF FINANCIAL OFFICER) | Disposition to the issuer | 1,324 | — | $0 | Form 4/A |
| 2026-03-13 | Dugas Eric J. | Officer (EVP CHIEF FINANCIAL OFFICER) | Shares withheld for taxes / exercise cost | 630 | $288.93 | $182.0K | Form 4/A |
| 2026-03-13 | GERSTENBERG ERIC W | Officer (CO-CEO) | Disposition to the issuer | 2,166 | — | $0 | Form 4/A |
| 2026-03-13 | GERSTENBERG ERIC W | Officer (CO-CEO) | Shares withheld for taxes / exercise cost | 977 | $288.93 | $282.3K | Form 4/A |
| 2026-02-23 | GERSTENBERG ERIC W | Officer (CO-CEO) | Open-market sale | 2,500 | $279.86 | $699.6K | Form 4/A |
| 2026-02-20 | Dugas Eric J. | Officer (EVP CHIEF FINANCIAL OFFICER) | Open-market sale | 2,788 | $281.31 | $784.3K | Form 4/A |
Ask the chat about CLH's insider activity →
Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: Clean Harbors (CLH).
Last updated 2026-08-14 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.