Harrison Robert W. has filed 18 insider transactions across 1 company since February 2023.
Most recent transaction: a tax payment of 18 shares of CLEAN HARBORS INC ($CLH) on March 13, 2026.
Activity breakdown: 0 open-market purchases and 1 sale.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 13, 2026 | CLEAN HARBORS INC | $CLH | Harrison Robert W. | EVP, EHS | F | Common Stock | 18 | $288.93 | 7,016.0000 | 53,716,000 | 0.26% | 0.00% |
| March 13, 2026 | CLEAN HARBORS INC | $CLH | Harrison Robert W. | EVP, EHS | D | Common Stock | 368 | $0.00 | 6,648.0000 | 53,716,000 | 5.25% | 0.00% |
| Feb. 1, 2026 | CLEAN HARBORS INC | $CLH | Harrison Robert W. | EVP, EHS | A | Common Stock | 430 | $0.00 | 7,034.0000 | 53,716,000 | 6.51% | 0.00% |
| Feb. 2, 2026 | CLEAN HARBORS INC | $CLH | Harrison Robert W. | EVP, EHS | F | Common Stock | 184 | $259.91 | 5,601.0000 | 53,716,000 | 3.18% | 0.00% |
| Feb. 1, 2026 | CLEAN HARBORS INC | $CLH | Harrison Robert W. | EVP, EHS | A | Common Stock | 1003 | $0.00 | 6,604.0000 | 53,716,000 | 17.91% | 0.00% |
| Dec. 15, 2025 | CLEAN HARBORS INC | $CLH | Harrison Robert W. | EVP, EHS | F | Common Stock | 16 | $240.71 | 5,785.0000 | 53,871,000 | 0.28% | 0.00% |
| Dec. 1, 2025 | CLEAN HARBORS INC | $CLH | Harrison Robert W. | EVP, EHS | F | Common Stock | 122 | $228.54 | 5,801.0000 | 53,871,000 | 2.06% | 0.00% |
| March 17, 2025 | CLEAN HARBORS INC | $CLH | Harrison Robert W. | EVP, EHS | F | Common Stock | 35 | $192.90 | 5,923.0000 | 54,199,000 | 0.59% | 0.00% |
| Feb. 1, 2025 | CLEAN HARBORS INC | $CLH | Harrison Robert W. | EVP, EHS | A | Common Stock | 1033 | $0.00 | 5,958.0000 | 54,199,000 | 20.97% | 0.00% |
| Feb. 1, 2025 | CLEAN HARBORS INC | $CLH | Harrison Robert W. | EVP, EHS | A | Common Stock | 443 | $0.00 | 4,925.0000 | 54,199,000 | 9.88% | 0.00% |
| Dec. 15, 2024 | CLEAN HARBORS INC | $CLH | Harrison Robert W. | EVP, EHS | F | Common Stock | 28 | $244.28 | 4,482.0000 | 54,229,000 | 0.62% | 0.00% |
| Dec. 1, 2024 | CLEAN HARBORS INC | $CLH | Harrison Robert W. | EVP, EHS | F | Common Stock | 122 | $260.09 | 4,510.0000 | 54,229,000 | 2.63% | 0.00% |
| March 15, 2024 | CLEAN HARBORS INC | $CLH | Harrison Robert W. | EVP, EHS | F | Common Stock | 27 | $187.84 | 4,632.0000 | 54,382,000 | 0.58% | 0.00% |
| Feb. 1, 2024 | CLEAN HARBORS INC | $CLH | Harrison Robert W. | EVP, EHS | A | Common Stock | 737 | $0.00 | 4,659.0000 | 54,382,000 | 18.79% | 0.00% |
| Feb. 1, 2024 | CLEAN HARBORS INC | $CLH | Harrison Robert W. | EVP, EHS | A | Common Stock | 553 | $0.00 | 3,922.0000 | 54,382,000 | 16.41% | 0.00% |
| Dec. 1, 2023 | CLEAN HARBORS INC | $CLH | Harrison Robert W. | EVP, EHS | S | Common Stock | 122 | $166.86 | 3,369.0000 | 54,487,000 | 3.49% | 0.00% |
| Feb. 1, 2023 | CLEAN HARBORS INC | $CLH | Harrison Robert W. | EVP, EHS | A | Common Stock | 1138 | $0.00 | 3,491.0000 | 54,487,000 | 48.36% | 0.00% |
| Feb. 1, 2023 | CLEAN HARBORS INC | $CLH | Harrison Robert W. | EVP, EHS | A | Common Stock | 853 | $0.00 | 2,353.0000 | 54,487,000 | 56.87% | 0.00% |