SEC Form 4 · Updated Daily
CLH
— CLEAN HARBORS, INC. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| WAXLAX LORNE R | Director | 189,683 | 2011-09-20 | G |
| RUTLEDGE JAMES M | Director · Officer | 118,201 | 2016-09-29 | F |
| Battles Michael Louis | Director | 94,355 | 2026-07-01 | F |
| GERSTENBERG ERIC W | Officer | 56,793 | 2026-08-14 | S |
| Weber Brian P | Officer | 47,914 | 2026-07-01 | F |
| Fleming Glen | Officer | 46,924 | 2009-08-11 | — |
| Lefebvre Marvin G | Officer | 45,394 | 2017-12-07 | F |
| CURTIS GEORGE L | Officer | 44,291 | 2026-07-01 | F |
| Evens Deirdre | Director | 39,324 | 2015-06-22 | F |
| Kraus Eric A | Officer | 33,108 | 2018-09-06 | S |
| MCKIM ALAN S | Director · Officer | 30,154 | 2026-07-17 | F |
| TWOHIG MICHAEL J | Officer | 28,857 | 2023-03-27 | S |
| SHIELDS THOMAS J | Director | 28,762 | 2022-05-25 | A |
| CORRELL JERRY ELMER | Officer | 28,458 | 2015-12-15 | F |
| GALANTE EDWARD G | Director | 25,461 | 2026-05-20 | A |
| Cowan Grace | Officer | 22,914 | 2018-09-06 | S |
| Duffee Kirk | Officer | 21,654 | 2016-09-09 | F |
| Gabriel Sharon M. | Officer | 20,706 | 2026-07-01 | F |
| MCCARTHY DANIEL JAMES | Director | 20,509 | 2016-06-06 | M |
| BEALS JOHN R | Officer | 19,049.7 | 2014-02-26 | D |
| DEVILLARS JOHN P | Director | 18,617 | 2015-06-10 | A |
| Underwood Rebecca | Officer | 18,373 | 2026-07-01 | F |
| Dugas Eric J. | Officer | 17,620 | 2026-07-01 | F |
| Mansy Loan Nguyen | Director | 17,163 | 2023-08-21 | — |
| Speights Robert | Officer | 16,310 | 2025-05-27 | S |
| Diderich Jeroen | Officer | 16,152 | 2026-06-01 | F |
| Craycraft Robert M | Officer | 15,000 | 2012-12-28 | — |
| Schwinn Laura | Officer | 14,563 | 2013-05-06 | A |
| Marlin Rod | Director | 14,427 | 2021-05-10 | S |
| Bouldin Mark G. | Officer | 14,272 | 2018-06-01 | F |
| BARR JOHN | Director | 11,900 | 2008-09-08 | M |
| PARRY DAVID M | Officer | 11,544 | 2018-09-15 | D |
| States Lauren | Director | 11,359 | 2026-05-26 | S |
| Welch John R. | Director | 10,889 | 2026-05-20 | A |
| Geer Charles H. II | Officer | 10,799 | 2026-07-01 | F |
| Lindgren Eric R. | Officer | 10,556 | 2016-01-06 | F |
| KASLOW JOHN F | Director | 10,297 | 2014-06-23 | S |
| McDuffie Melkeya | Director | 10,094 | 2023-05-24 | S |
| Willett Robert | Director | 10,028 | 2026-05-20 | A |
| Mohan Stephen M. | Officer | 10,000 | 2016-10-01 | A |
| Robertson Andrea | Director | 8,979 | 2026-08-03 | S |
| Gerlin Simon R | Officer | 8,926 | 2012-03-30 | A |
| COOKSON EUGENE A JR | Officer | 8,772 | 2009-03-16 | F |
| Melocik Christopher P. | Officer | 7,888 | 2016-09-01 | A |
| Fusco Steven | Officer | 7,788 | 2013-11-01 | F |
| OCONNOR WILLIAM F | Officer | 7,496 | 2012-12-28 | M |
| Gagnon Robert E. | Director | 7,386 | 2012-09-11 | A |
| PRESTON JOHN T | Director | 7,044 | 2026-05-20 | A |
| Harrison Robert W. | Officer | 7,016 | 2026-03-13 | F |
| Johnston Robert A. | Officer | 6,691 | 2021-01-11 | J |
| MOYNIHAN STEPHEN | Officer | 6,293 | 2008-05-29 | S |
| Reed Marcy L. | Director | 5,733 | 2026-05-20 | A |
| BANUCCI EUGENE G | Director | 5,598 | 2023-06-09 | S |
| Musselman David | Officer | 5,003 | 2013-05-06 | A |
| Vergo David J. | Officer | 4,783 | 2019-05-17 | D |
| Stewart Shelley JR | Director | 4,523 | 2026-05-20 | A |
| Knapp Jeffrey Herbert | Officer | 4,311 | 2021-11-19 | S |
| GEARY WILLIAM J | Officer | 4,292 | 2009-03-16 | F |
| Polito Karyn | Director | 4,127 | 2026-05-20 | A |
| Pucillo Anthony | Officer | 4,012 | 2007-03-30 | S |
| Quirk Alison A. | Director | 3,630 | 2026-05-20 | A |
| Knapp Curt | Officer | 3,160 | 2015-01-31 | S |
| McDonald Michael R | Officer | 2,983 | 2011-06-20 | A |
| Frick Janet B | Officer | 2,690 | 2010-03-08 | D |
| Eckelbarger David | Officer | 2,649 | 2014-10-24 | S |
| Hobson Philip | Officer | 2,500 | 2012-12-02 | A |
| Retallick Phillip G | Officer | 2,228 | 2012-12-15 | F |
| Seeger Thomas | Officer | 600 | 2012-08-08 | A |
| Scandone Darren R | Officer | 100 | 2008-12-09 | D |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-08-14 | GERSTENBERG ERIC W | Open-market sale | 2,500 | $321.34 | 56,793 |
| 2026-08-03 | Robertson Andrea | Open-market sale | 789 | $314.01 | 8,979 |
| 2026-07-17 | MCKIM ALAN S | Tax withholding | 1,265 | $310.58 | 30,154 |
| 2026-07-01 | Dugas Eric J. | Tax withholding | 447 | $290.74 | 13,532 |
| 2026-07-01 | Geer Charles H. II | Tax withholding | 40 | $290.74 | 10,799 |
| 2026-07-01 | GERSTENBERG ERIC W | Tax withholding | 564 | $290.74 | 38,313 |
| 2026-07-01 | MCKIM ALAN S | Tax withholding | 1,343 | $290.74 | 31,419 |
| 2026-07-01 | Underwood Rebecca | Tax withholding | 311 | $290.74 | 18,373 |
| 2026-07-01 | Weber Brian P | Tax withholding | 814 | $290.74 | 47,914 |
| 2026-07-01 | Gabriel Sharon M. | Tax withholding | 359 | $290.74 | 20,706 |
| 2026-07-01 | CURTIS GEORGE L | Tax withholding | 1,757 | $290.74 | 44,291 |
| 2026-07-01 | Battles Michael Louis | Tax withholding | 1,032 | $290.74 | 94,355 |
| 2026-07-01 | Dugas Eric J. | Tax withholding | 447 | $290.74 | 17,620 |
| 2026-07-01 | GERSTENBERG ERIC W | Tax withholding | 564 | $290.74 | 59,293 |
| 2026-06-01 | Diderich Jeroen | Tax withholding | 1,717 | $281.00 | 16,152 |
| 2026-05-26 | States Lauren | Open-market sale | 789 | $286.19 | 11,359 |
| 2026-05-20 | Polito Karyn | Grant / award | 652 | $0.00 | 4,127 |
| 2026-05-20 | GALANTE EDWARD G | Grant / award | 652 | $0.00 | 25,461 |
| 2026-05-20 | PRESTON JOHN T | Grant / award | 652 | $0.00 | 7,044 |
| 2026-05-20 | Quirk Alison A. | Grant / award | 652 | $0.00 | 3,630 |
| 2026-05-20 | Reed Marcy L. | Grant / award | 652 | $0.00 | 5,733 |
| 2026-05-20 | Robertson Andrea | Grant / award | 652 | $0.00 | 9,768 |
| 2026-05-20 | States Lauren | Grant / award | 652 | $0.00 | 12,148 |
| 2026-05-20 | Stewart Shelley JR | Grant / award | 652 | $0.00 | 4,523 |
| 2026-05-20 | Welch John R. | Grant / award | 652 | $0.00 | 10,889 |
| 2026-05-20 | Willett Robert | Grant / award | 652 | $0.00 | 10,028 |
| 2026-05-11 | Robertson Andrea | Gift | 342 | $0.00 | 9,116 |
| 2026-05-11 | Polito Karyn | Grant / award | 460 | $295.13 | 3,475 |
| 2026-05-11 | Polito Karyn | Open-market buy | 460 | $295.13 | 3,475 |
| 2026-03-18 | Reed Marcy L. | Open-market sale | 836 | $287.94 | 5,081 |
| 2026-03-18 | GERSTENBERG ERIC W | Open-market sale | 1,000 | $293.00 | 38,877 |
| 2026-03-18 | GERSTENBERG ERIC W | Open-market sale | 1,000 | $293.00 | 59,857 |
| 2026-03-17 | Weber Brian P | Open-market sale | 4,683 | $293.39 | 48,728 |
| 2026-03-13 | Geer Charles H. II | Disposition to issuer | 139 | $0.00 | 10,839 |
| 2026-03-13 | CURTIS GEORGE L | Disposition to issuer | 1,028 | $0.00 | 46,048 |
| 2026-03-13 | CURTIS GEORGE L | Tax withholding | 350 | $288.93 | 47,065 |
| 2026-03-13 | Harrison Robert W. | Tax withholding | 18 | $288.93 | 7,016 |
| 2026-03-13 | Harrison Robert W. | Disposition to issuer | 368 | $0.00 | 6,648 |
| 2026-03-13 | MCKIM ALAN S | Tax withholding | 1,265 | $288.93 | 32,762 |
| 2026-03-13 | Battles Michael Louis | Tax withholding | 1,148 | $288.93 | 97,538 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.