Welcome to our dedicated page for Clean Harbors SEC filings (Ticker: CLH), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Clean Harbors, Inc. SEC filings document formal disclosures for an environmental and industrial services company operating through Environmental Services and Safety-Kleen Sustainability Solutions. Form 8-K reports furnish operating and financial results, including segment performance, revenue, operating income, adjusted EBITDA, cash flow, guidance and share repurchase activity tied to hazardous waste management, industrial services, recycling and used-oil re-refining.
The company’s filings also cover capital-structure and governance matters. Material-event filings describe debt financing activity, including senior notes due 2033 and related refinancing arrangements. Proxy statements document board and shareholder voting matters, executive compensation, pay-versus-performance disclosures and other governance information for Clean Harbors’ public-company structure.
On July 17, 2026, Clean Harbors Inc. executive chair and CTO Alan S. McKim reported a tax-withholding disposition of 1,265 shares of common stock at $310.58 per share, used to satisfy tax liabilities on vesting awards under Rule 16b3. After this withholding, he holds 30,154 shares directly and indirectly holds 2,065,368 shares in the McKim 2007 Trust, 67,093 shares in the McKim 2025 Annuity Trust, and 100,000 shares in the McKim 2026 Annuity Trust.
CLEAN HARBORS INC executive Gabriel M. Sharon reported a small tax-related share disposition. On the reported date, 359 shares of Common Stock were withheld at a price of $290.74 per share to cover tax liabilities tied to vesting of equity awards.
After this tax-withholding transaction, Sharon directly holds 20,706 shares of CLEAN HARBORS INC common stock. The filing notes that the withholding was conducted in accordance with Rule 16b-3, indicating it was an administrative, compensation-related event rather than an open-market trade.
CLEAN HARBORS INC executive Brian P. Weber reported a routine tax-related share disposition. On July 1, 2026, 814 shares of common stock were withheld at $290.74 per share to cover tax liabilities tied to vesting, as permitted under Rule 16b-3. Following this withholding, Weber directly holds 47,914 shares of common stock, so the withheld amount represents only a fraction of his overall position and does not reflect an open-market sale.
Clean Harbors Inc executive Rebecca Underwood reported a routine tax-related share disposition. She had 311 shares of Common Stock withheld at $290.74 per share to cover tax liabilities tied to vesting, as permitted under Rule 16b-3. After this withholding, she directly holds 18,373 shares of Clean Harbors common stock.
CLEAN HARBORS INC executive Alan S. McKim reported routine share movements mainly related to tax withholding and trust holdings. The filing shows an F-code transaction where 1,343 shares of common stock were withheld at $290.74 per share to cover a tax liability upon vesting, a non-market disposition under Rule 16b-3.
After this tax-withholding event, McKim directly holds 31,419 common shares. He also has indirect ownership through several trusts, including 2,065,368 shares held by the McKim 2007 Trust, 67,093 shares held by the McKim 2025 Annuity Trust, and 100,000 shares held by the McKim 2026 Annuity Trust.
CLEAN HARBORS INC co-CEO Eric W. Gerstenberg reported a small share disposition related to taxes, not an open-market trade. On July 1, 2026, 564 shares of Common Stock were withheld at $290.74 per share to cover tax obligations tied to vesting equity awards under Rule 16b-3.
After this tax-withholding transaction, Gerstenberg directly holds 38,313 shares of CLEAN HARBORS INC Common Stock. This filing reflects routine equity compensation and associated tax settlement rather than a discretionary buy or sell decision in the open market.
Clean Harbors Inc. executive Charles H. Geer II reported a routine tax-related share disposition. On this Form 4, 40 shares of Common Stock were withheld on July 1, 2026 at $290.74 per share to cover tax liabilities tied to vesting. After this withholding, he directly holds 10,799 shares of Clean Harbors common stock.
CLEAN HARBORS INC Executive Vice President and Chief Financial Officer Eric J. Dugas reported a small share disposition tied to taxes, not a market trade. On this Form 4, 447 shares of common stock were withheld at $290.74 per share to cover tax liability upon vesting, in accordance with Rule 16b3.
After this tax-withholding transaction, Dugas directly holds 13,532 shares of CLEAN HARBORS INC common stock. The filing reflects a routine compensation-related event rather than an open-market purchase or sale.
Clean Harbors Inc. executive Jeroen Diderich reported a tax-related share withholding. On 2026-06-01, 1,717 shares of Common Stock were disposed of at $281.00 per share to cover tax liabilities tied to vesting, in a transaction structured as withholding of shares rather than an open‑market sale. Following this event, he directly held 16,152 shares, which includes 14 shares acquired under the Clean Harbors Employee Stock Purchase Plan.
CLEAN HARBORS INC director Lauren States reported an open-market sale of Common Stock. On May 26, 2026, she sold 789 shares at $286.19 per share. After this transaction, she directly holds 11,359 shares of Clean Harbors common stock.