CLEAN HARBORS INC — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Welch John R. | — | Gift | 415 | — | — | 10,987 | Dec 17, 2025 |
| GERSTENBERG ERIC W | CO-CEO | Sale | 601 | $240.90 | $144,781 | 50,454 | Dec 16, 2025 |
| Underwood Rebecca | PRESIDENT & EVP FACILITIES | Tax Withholding | 51 | $240.71 | $12,276 | 17,284 | Dec 15, 2025 |
| Harrison Robert W. | EVP, EHS | Tax Withholding | 16 | $240.71 | $3,851 | 5,785 | Dec 15, 2025 |
| Geer Charles H. II | EVP, Industrial Services | Tax Withholding | 28 | $240.71 | $6,740 | 8,814 | Dec 15, 2025 |
| CURTIS GEORGE L | EXEC. VICE PRESIDENT (CHESI) | Gift | 1,000 | — | — | 47,664 | Dec 9, 2025 |
| Harrison Robert W. | EVP, EHS | Tax Withholding | 122 | $228.54 | $27,882 | 5,801 | Dec 1, 2025 |
| States Lauren | — | Gift | 245 | — | — | 11,496 | Nov 13, 2025 |
| Geer Charles H. II | EVP, Industrial Services | Tax Withholding | 294 | $210.51 | $61,890 | 8,842 | Nov 1, 2025 |
| MCKIM ALAN S | EXEC CHAIR, CTO. | Gift | 8,567 | — | — | 2,346,744 | Sep 16, 2025 |
| Robertson Andrea | — | Gift | 430 | — | — | 9,458 | Aug 5, 2025 |
| Battles Michael Louis | CO-CEO | Purchase | 2,000 | $233.50 | $467,000 | 82,911 | Aug 1, 2025 |
| Robertson Andrea | — | Sale | 836 | $233.64 | $195,323 | 9,888 | Jul 31, 2025 |
| Underwood Rebecca | PRESIDENT & EVP FACILITIES | Tax Withholding | 1,051 | $229.55 | $241,257 | 17,335 | Jul 1, 2025 |
| Battles Michael Louis | CO-CEO | Tax Withholding | 1,532 | $229.55 | $351,671 | 80,911 | Jul 1, 2025 |
| GERSTENBERG ERIC W | CO-CEO | Tax Withholding | 564 | $229.55 | $129,466 | 51,055 | Jul 1, 2025 |
| CURTIS GEORGE L | EXEC. VICE PRESIDENT (CHESI) | Tax Withholding | 399 | $229.55 | $91,590 | 48,664 | Jul 1, 2025 |
| Gabriel Sharon M. | EVP/CIO (CHESI) | Tax Withholding | 525 | $229.55 | $120,514 | 27,766 | Jul 1, 2025 |
| Weber Brian P | EVP (CHESI) | Tax Withholding | 1,136 | $229.55 | $260,769 | 53,412 | Jul 1, 2025 |
| Dugas Eric J. | EVP CHIEF FINANCIAL OFFICER | Tax Withholding | 613 | $229.55 | $140,714 | 19,288 | Jul 1, 2025 |
| MCKIM ALAN S | EXEC CHAIR, CTO. | Tax Withholding | 1,342 | $229.55 | $308,056 | 34,027 | Jul 1, 2025 |
| Weber Brian P | EVP (CHESI) | Sale | 3,035 | $227.17 | $689,461 | 54,548 | Jun 13, 2025 |
| GERSTENBERG ERIC W | CO-CEO | Sale | 8,076 | $225.23 | $1,818,957 | 51,619 | Jun 6, 2025 |
| Quirk Alison A. | — | Sale | 893 | $223.69 | $199,755 | 2,978 | Jun 5, 2025 |
| MCKIM ALAN S | EXEC CHAIR, CTO. | Sale | 58,156 | $223.80 | $13,015,313 | 2,297,896 | Jun 4, 2025 |
| Dugas Eric J. | EVP CHIEF FINANCIAL OFFICER | Tax Withholding | 806 | $226.79 | $182,793 | 19,901 | Jun 2, 2025 |
| Diderich Jeroen | EVP&President of Sales&Service | Tax Withholding | 1,540 | $226.79 | $349,257 | 13,772 | Jun 2, 2025 |
| Welch John R. | — | Sale | 1,250 | $228.51 | $285,638 | 11,402 | May 28, 2025 |
| Speights Robert | PRESIDENT, INDUSTRIAL SERVICES | Sale | 1,022 | $228.49 | $233,517 | 16,310 | May 27, 2025 |
| States Lauren | — | Gift | 130 | — | — | 11,741 | May 27, 2025 |
| Quirk Alison A. | — | Award / Grant | 789 | — | — | 3,871 | May 21, 2025 |
| Polito Karyn | — | Award / Grant | 789 | — | — | 3,015 | May 21, 2025 |
| States Lauren | — | Sale | 836 | $226.17 | $189,078 | 11,871 | May 21, 2025 |
| Welch John R. | — | Award / Grant | 789 | — | — | 12,652 | May 21, 2025 |
| Stewart Shelley JR | — | Award / Grant | 789 | — | — | 3,871 | May 21, 2025 |
| Robertson Andrea | — | Award / Grant | 789 | — | — | 10,724 | May 21, 2025 |
| Reed Marcy L. | — | Award / Grant | 789 | — | — | 5,917 | May 21, 2025 |
| PRESTON JOHN T | — | Award / Grant | 789 | — | — | 6,392 | May 21, 2025 |
| GALANTE EDWARD G | — | Award / Grant | 789 | — | — | 24,809 | May 21, 2025 |
| Willett Robert | — | Award / Grant | 789 | — | — | 9,376 | May 21, 2025 |
| Speights Robert | PRESIDENT, INDUSTRIAL SERVICES | Disposition | 16,612 | — | — | 17,332 | May 2, 2025 |
| CURTIS GEORGE L | EXEC. VICE PRESIDENT (CHESI) | Award / Grant | 2,000 | — | — | 49,052 | Apr 1, 2025 |
| Underwood Rebecca | PRESIDENT & EVP FACILITIES | Tax Withholding | 176 | $192.90 | $33,950 | 18,386 | Mar 17, 2025 |
| Harrison Robert W. | EVP, EHS | Tax Withholding | 35 | $192.90 | $6,752 | 5,923 | Mar 17, 2025 |
| Dugas Eric J. | EVP CHIEF FINANCIAL OFFICER | Tax Withholding | 631 | $192.90 | $121,720 | 23,607 | Mar 17, 2025 |
| Battles Michael Louis | CO-CEO | Tax Withholding | 1,149 | $192.90 | $221,642 | 87,173 | Mar 17, 2025 |
| Weber Brian P | EVP (CHESI) | Tax Withholding | 959 | $192.90 | $184,991 | 61,676 | Mar 17, 2025 |
| Gabriel Sharon M. | EVP/CIO (CHESI) | Tax Withholding | 667 | $192.90 | $128,664 | 31,087 | Mar 17, 2025 |
| GERSTENBERG ERIC W | CO-CEO | Tax Withholding | 978 | $192.90 | $188,656 | 64,439 | Mar 17, 2025 |
| MCKIM ALAN S | EXEC CHAIR, CTO. | Tax Withholding | 1,265 | $192.90 | $244,019 | 35,369 | Mar 17, 2025 |