Michael Louis Battles, co-CEO of Clean Harbors Inc. ($CLH), made one open market purchase of company shares in the last year, totaling $467,000. His latest buy occurred on August 1, 2025. This ranks 927th among nearly 5,000 insiders by purchase value, compared to an average of $1.5 million over 3.3 transactions. Battles reported no open market sales.
| 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 | Battles Michael Louis | CO-CEO | D | Common Stock | 2166 | $0.00 | 95,387.0000 | 53,716,000 | 2.22% | 0.00% |
| March 13, 2026 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | F | Common Stock | 1148 | $288.93 | 97,538.0000 | 53,716,000 | 1.16% | 0.00% |
| Feb. 2, 2026 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | F | Common Stock | 5205 | $259.91 | 77,706.0000 | 53,716,000 | 6.28% | 0.01% |
| Feb. 1, 2026 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | A | Common Stock | 10290 | $0.00 | 87,996.0000 | 53,716,000 | 13.24% | 0.02% |
| Feb. 1, 2026 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | A | Common Stock | 10690 | $0.00 | 98,686.0000 | 53,716,000 | 12.15% | 0.02% |
| Aug. 1, 2025 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | P | Common Stock | 2000 | $233.50 | 82,911.0000 | 54,199,000 | 2.47% | 0.00% |
| July 1, 2025 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | F | Common Stock | 1532 | $229.55 | 80,911.0000 | 54,199,000 | 1.86% | 0.00% |
| June 5, 2025 | CASELLA WASTE SYSTEMS INC | $CWST | Battles Michael Louis | Director | A | Class A Common Stock | 1215 | $115.17 | 8,496.0000 | 59,681,000 | 16.69% | 0.00% |
| March 17, 2025 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | F | Common Stock | 1149 | $192.90 | 87,173.0000 | 54,199,000 | 1.30% | 0.00% |
| March 17, 2025 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | D | Common Stock | 4744 | $0.00 | 82,429.0000 | 54,199,000 | 5.44% | 0.01% |
| Feb. 1, 2025 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | A | Common Stock | 5325 | $0.00 | 92,714.0000 | 54,199,000 | 6.09% | 0.01% |
| Feb. 1, 2025 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | F | Common Stock | 4407 | $233.00 | 88,322.0000 | 54,199,000 | 4.75% | 0.01% |
| Feb. 1, 2025 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | A | Common Stock | 11059 | $0.00 | 87,389.0000 | 54,199,000 | 14.49% | 0.02% |
| March 17, 2025 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | F | Common Stock | 1149 | $192.90 | 87,173.0000 | 54,199,000 | 1.30% | 0.00% |
| Feb. 1, 2025 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | A | Common Stock | 5325 | $0.00 | 92,714.0000 | 54,199,000 | 6.09% | 0.01% |
| Feb. 1, 2025 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | F | Common Stock | 5217 | $233.00 | 87,512.0000 | 54,199,000 | 5.63% | 0.01% |
| Nov. 1, 2024 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | F | Common Stock | 806 | $233.00 | 76,330.0000 | 54,229,000 | 1.04% | 0.00% |
| Feb. 1, 2025 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | A | Common Stock | 11059 | $0.00 | 87,389.0000 | 54,199,000 | 14.49% | 0.02% |
| Feb. 1, 2025 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | A | Common Stock | 11059 | $0.00 | 88,195.0000 | 54,199,000 | 14.34% | 0.02% |
| Feb. 1, 2025 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | A | Common Stock | 5325 | $0.00 | 93,520.0000 | 54,199,000 | 6.04% | 0.01% |
| Feb. 1, 2025 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | F | Common Stock | 5217 | $233.00 | 88,318.0000 | 54,199,000 | 5.58% | 0.01% |
| Sept. 16, 2024 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | S | Common Stock | 10000 | $245.74 | 77,136.0000 | 54,382,000 | 11.48% | 0.02% |
| July 1, 2024 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | F | Common Stock | 2488 | $220.63 | 87,136.0000 | 54,382,000 | 2.78% | 0.00% |
| June 6, 2024 | CASELLA WASTE SYSTEMS INC | $CWST | Battles Michael Louis | Director | A | Class A Common Stock | 1451 | $96.47 | 7,281.0000 | 55,274,000 | 24.89% | 0.00% |
| March 15, 2024 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | F | Common Stock | 702 | $187.84 | 89,624.0000 | 54,382,000 | 0.78% | 0.00% |
| Feb. 1, 2024 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | A | Common Stock | 14524 | $0.00 | 88,013.0000 | 54,382,000 | 19.76% | 0.03% |
| Feb. 1, 2024 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | F | Common Stock | 2019 | $172.62 | 90,326.0000 | 54,382,000 | 2.19% | 0.00% |
| Feb. 1, 2024 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | A | Common Stock | 4332 | $0.00 | 92,345.0000 | 54,382,000 | 4.92% | 0.01% |
| Dec. 15, 2023 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | F | Common Stock | 224 | $174.75 | 73,489.0000 | 54,487,000 | 0.30% | 0.00% |
| Nov. 1, 2023 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | F | Common Stock | 740 | $147.34 | 73,713.0000 | 54,487,000 | 0.99% | 0.00% |
| Aug. 4, 2023 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | S | Common Stock | 10000 | $171.00 | 74,453.0000 | 54,487,000 | 11.84% | 0.02% |
| July 3, 2023 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | CO-CEO | S | Common Stock | 6467 | $164.43 | 84,453.0000 | 54,487,000 | 7.11% | 0.01% |
| March 15, 2023 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | EVP AND CFO | S | Common Stock | 644 | $133.07 | 90,920.0000 | 54,487,000 | 0.70% | 0.00% |
| Feb. 1, 2023 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | EVP AND CFO | A | Common Stock | 22450 | $0.00 | 84,868.0000 | 54,487,000 | 35.97% | 0.04% |
| Feb. 1, 2023 | CLEAN HARBORS INC | $CLH | Battles Michael Louis | EVP AND CFO | A | Common Stock | 6696 | $0.00 | 91,564.0000 | 54,487,000 | 7.89% | 0.01% |