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.
Clean Harbors (CLH) co-CEO Eric W. Gerstenberg reported an open-market sale of 2,500 shares of common stock at a price of $279.86 per share. After this transaction, he directly held 43,020 shares. The filing classifies the move as a sale in the open market or a private transaction.
Eric Gerstenberg filed a Form 144 reporting a proposed sale of 601 common shares. The filing shows a reported trade date of 12/16/2025 with proceeds of $144,675 and identifies Raymond James & Associates as the broker. The notice lists the security class as common stock for CLH.
Clean Harbors Inc. executive chair and CTO Alan S. McKim reported indirect transactions in company common stock through related trusts. The McKim 2007 Trust, an entity associated with him, executed an open-market sale of 100,000 shares at $281.14 per share and a separate 10,000-share bona fide charitable gift.
After these transactions, the McKim 2007 Trust held 2,265,368 shares, while the McKim 2025 Annuity Trust held 67,093 shares and McKim held 34,027 shares directly. The filing reflects both a significant indirect sale and a charitable transfer rather than a purchase.
Issuer submitted a Form 144 notice indicating intent to sell 3,540 common shares on 02/20/2026 through Morgan Stanley Smith Barney LLC. The filing lists multiple restricted stock lots with specific grant/vesting dates and quantities, including 973, 475, 424, 524, 89, 516, and 539 shares.
Morgan Stanley Smith Barney LLC filed a Form 144 reporting proposed sales of restricted common stock held for issuance by the issuer. The filing lists specific grant lots and quantities, including 257 shares (07/01/2023), 195 shares (11/01/2023), 992 shares (07/01/2024) and others across 2023–2025.
Clean Harbors Inc. executive Gabriel M. Sharon, EVP/CIO (CHESI), reported an open-market sale of 3,540 shares of Clean Harbors common stock. The transaction took place on February 20, 2026 at an average price of $282.07 per share. After this sale, Sharon directly owns 23,193 shares of Clean Harbors common stock.
CLEAN HARBORS INC executive Eric J. Dugas, the EVP and Chief Financial Officer, sold Common Stock in an open-market transaction. He sold 2,788 shares at a price of $281.31 per share on February 20, 2026. After this sale, he directly owned 15,933 shares of CLEAN HARBORS INC common stock.
Clean Harbors Inc. director John R. Welch sold 750 shares of common stock in an open-market transaction at a price of $273.07 per share. After this sale, he directly owned 10,237 shares of Clean Harbors common stock.
CLH filing reports a proposed sale of 100,000 common shares under a Form 144. The shares are described with acquisition records including 11/11/2009 (acquired from the public market) and a 09/16/2025 entry showing acquisition as a gift from Alan S. McKim 2007 Trust dtd 04/04/2007.
The filing lists broker details as Goldman Sachs & Co. LLC at 200 West Street, New York and identifies the exchange as NYSE.
Morgan Stanley Smith Barney LLC submitted a Form 144 notice reporting a sale notice for 750 common shares of CLH with an aggregate value of $204,806.25 dated 02/19/2026. The shares are listed on the NYSE.
The filing lists restricted stock lots acquired 06/07/2019 (332 shares) and 06/08/2020 (418 shares); these acquisition dates and amounts are shown as background details in the excerpt.