Eric W. Gerstenberg, co-CEO of Clean Harbors Inc. ($CLH), sold about $2.7 million in company shares across three open market transactions over the last year. His most recent sale occurred on February 23, 2026. These sales rank 2,918th among 11,678 individual insiders in our database, where the average is about $8.6 million across roughly 6.4 transactions. Gerstenberg made no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 18, 2026 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | S | Common Stock | 1000 | $293.00 | 38,877.0000 | 53,716,000 | 2.51% | 0.00% |
| March 13, 2026 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | D | Common Stock | 2166 | $0.00 | 39,877.0000 | 53,716,000 | 5.15% | 0.00% |
| March 13, 2026 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | F | Common Stock | 977 | $288.93 | 42,043.0000 | 53,716,000 | 2.27% | 0.00% |
| Feb. 23, 2026 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | S | Common Stock | 2500 | $279.86 | 43,020.0000 | 53,716,000 | 5.49% | 0.00% |
| Feb. 1, 2026 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | A | Common Stock | 10690 | $0.00 | 66,500.0000 | 53,716,000 | 19.15% | 0.02% |
| Feb. 2, 2026 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | F | Common Stock | 4934 | $259.91 | 45,520.0000 | 53,716,000 | 9.78% | 0.01% |
| Feb. 1, 2026 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | A | Common Stock | 10290 | $0.00 | 55,810.0000 | 53,716,000 | 22.61% | 0.02% |
| Dec. 16, 2025 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | S | Common Stock | 601 | $240.90 | 50,454.0000 | 53,871,000 | 1.18% | 0.00% |
| July 1, 2025 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | F | Common Stock | 564 | $229.55 | 51,055.0000 | 54,199,000 | 1.09% | 0.00% |
| June 6, 2025 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | S | Common Stock | 8076 | $225.23 | 51,619.0000 | 54,199,000 | 13.53% | 0.01% |
| March 17, 2025 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | F | Common Stock | 978 | $192.90 | 64,439.0000 | 54,199,000 | 1.50% | 0.00% |
| March 17, 2025 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | D | Common Stock | 4744 | $0.00 | 59,695.0000 | 54,199,000 | 7.36% | 0.01% |
| Feb. 1, 2025 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | A | Common Stock | 11059 | $0.00 | 66,716.0000 | 54,199,000 | 19.87% | 0.02% |
| Feb. 1, 2025 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | A | Common Stock | 5325 | $0.00 | 72,041.0000 | 54,199,000 | 7.98% | 0.01% |
| Feb. 1, 2025 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | F | Common Stock | 6624 | $233.00 | 65,417.0000 | 54,199,000 | 9.19% | 0.01% |
| March 17, 2025 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | F | Common Stock | 978 | $192.90 | 64,439.0000 | 54,199,000 | 1.50% | 0.00% |
| Feb. 1, 2025 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | A | Common Stock | 5325 | $0.00 | 72,041.0000 | 54,199,000 | 7.98% | 0.01% |
| Feb. 1, 2025 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | F | Common Stock | 7434 | $233.00 | 64,607.0000 | 54,199,000 | 10.32% | 0.01% |
| Feb. 1, 2025 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | A | Common Stock | 11059 | $0.00 | 66,716.0000 | 54,199,000 | 19.87% | 0.02% |
| Nov. 15, 2024 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | S | Common Stock | 6051 | $250.42 | 55,657.0000 | 54,229,000 | 9.81% | 0.01% |
| Sept. 1, 2024 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | F | Common Stock | 806 | $245.90 | 61,708.0000 | 54,382,000 | 1.29% | 0.00% |
| July 1, 2024 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | F | Common Stock | 4329 | $220.63 | 62,514.0000 | 54,382,000 | 6.48% | 0.01% |
| March 15, 2024 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | F | Common Stock | 531 | $187.84 | 66,843.0000 | 54,382,000 | 0.79% | 0.00% |
| March 15, 2024 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | S | Common Stock | 15276 | $187.71 | 67,374.0000 | 54,382,000 | 18.48% | 0.03% |
| Feb. 1, 2024 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | A | Common Stock | 4332 | $0.00 | 87,365.0000 | 54,382,000 | 5.22% | 0.01% |
| Feb. 1, 2024 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | A | Common Stock | 14524 | $0.00 | 83,033.0000 | 54,382,000 | 21.20% | 0.03% |
| Feb. 1, 2024 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | F | Common Stock | 4715 | $172.62 | 82,650.0000 | 54,382,000 | 5.40% | 0.01% |
| Dec. 15, 2023 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | F | Common Stock | 278 | $174.75 | 68,509.0000 | 54,487,000 | 0.40% | 0.00% |
| Nov. 22, 2023 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | S | Common Stock | 8000 | $164.82 | 68,787.0000 | 54,487,000 | 10.42% | 0.01% |
| Sept. 1, 2023 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | F | Common Stock | 740 | $173.37 | 76,787.0000 | 54,487,000 | 0.95% | 0.00% |
| Sept. 1, 2023 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | F | Common Stock | 1667 | $173.37 | 75,860.0000 | 54,487,000 | 2.15% | 0.00% |
| July 3, 2023 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CO-CEO | S | Common Stock | 9725 | $164.43 | 77,527.0000 | 54,487,000 | 11.15% | 0.02% |
| March 15, 2023 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CHIEF OPERATING OFFICER(CHESI) | S | Common Stock | 488 | $133.07 | 87,252.0000 | 54,487,000 | 0.56% | 0.00% |
| Feb. 1, 2023 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CHIEF OPERATING OFFICER(CHESI) | F | Common Stock | 2738 | $130.59 | 87,740.0000 | 54,487,000 | 3.03% | 0.01% |
| Feb. 1, 2023 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CHIEF OPERATING OFFICER(CHESI) | A | Common Stock | 6696 | $0.00 | 68,028.0000 | 54,487,000 | 10.92% | 0.01% |
| Feb. 1, 2023 | CLEAN HARBORS INC | $CLH | GERSTENBERG ERIC W | CHIEF OPERATING OFFICER(CHESI) | A | Common Stock | 22450 | $0.00 | 90,478.0000 | 54,487,000 | 33.00% | 0.04% |