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.
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.
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.
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.
Clean Harbors, Inc. files its annual report describing a large North American environmental and industrial services platform spanning hazardous waste management, industrial cleaning and Safety-Kleen Sustainability Solutions.
The company operates over 100 waste facilities, including ten hazardous waste incinerators with 631,721 tons of annual practical capacity and seven landfills with 33.0 million cubic yards of remaining hazardous capacity as of December 31, 2025. In 2025 it collected 243 million gallons of used oil for re-refining into base oils, lubricants and byproducts.
Clean Harbors reports strong safety performance, with a 2025 Total Recordable Incident Rate of 0.49 and DART rate of 0.23, its best in company history. It generated $5,490.9 million of third‑party revenue in the United States and $540.0 million in Canada and employed 22,155 full‑time staff, supported by extensive compliance, insurance and risk‑management programs.
Clean Harbors reported strong fourth-quarter and full-year 2025 results, highlighted by record annual revenues of $6.03 billion and Adjusted EBITDA of $1.17 billion. Net income for 2025 was $391.0 million, or $7.28 per diluted share, while adjusted free cash flow reached a record $509.3 million.
The company repurchased $250 million of stock in 2025 and its Board authorized a $350 million expansion of the buyback program, restoring $600 million of availability. Clean Harbors also signed an agreement to acquire certain Depot Connect International businesses for approximately $130 million, expected to add about $40 million of revenue and $11 million of Adjusted EBITDA annually.
For 2026, Clean Harbors projects Adjusted EBITDA between $1.20 billion and $1.26 billion, based on anticipated GAAP net income of $410 million to $461 million, and adjusted free cash flow between $480 million and $540 million, supported by projected net cash from operating activities of $820 million to $940 million.
D1 Capital Partners L.P. and Daniel Sundheim report beneficial ownership of 2,781,882 shares of Clean Harbors common stock, representing 5.2% of the outstanding class. The stake is held through an investment vehicle managed by D1 Capital Partners.
The ownership percentage is based on 53,431,835 Clean Harbors common shares reported outstanding as of October 24, 2025. The reporting persons state that the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of Clean Harbors.
Wellington Management Group and related entities filed an amended Schedule 13G reporting beneficial ownership of 5,182,538 shares of Clean Harbors, Inc. common stock, representing 9.7% of the class as of the stated event date.
The filing shows shared voting power over 4,325,963 shares and shared dispositive power over 5,182,538 shares for several Wellington entities, with no sole voting or dispositive power. The securities are held of record by investment-advisory clients, none of which individually holds more than five percent of the class.
Wellington certifies the shares were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of Clean Harbors.
Clean Harbors, Inc. co-CEO and director Michael Louis Battles reported routine equity compensation activity. On 02/01/2026 he received two grants of common stock: 10,290 performance-based restricted shares and 10,690 time-based restricted shares, both at a reported price of $0 per share.
On 02/02/2026, 5,205 shares were withheld at $259.91 per share to satisfy tax liabilities tied to vesting, in accordance with Rule 16b-3. After these transactions, Battles directly beneficially owned 98,686 shares of Clean Harbors common stock.
Clean Harbors executive Brian P. Weber reported several equity transactions in company stock. On 02/02/2026, 1,394 shares of common stock were withheld at $259.91 per share to cover tax liabilities related to vesting, leaving 52,018 directly owned shares after that transaction.
On 02/01/2026, he received 3,166 performance-based restricted shares and 1,056 time-based restricted shares at no cost. The performance award is scheduled to vest 50% on 3/15/2028 and 50% on 3/15/2029, subject to goals for the 2027 performance period. The time-based award vests in four equal annual installments starting February 1, 2027. Following these grants, Weber directly owns 56,240 common shares.
Clean Harbors, Inc. executive Rebecca Underwood, President & EVP Facilities, reported routine equity activity in company common stock. On February 1, 2026, she received 2,513 performance-based restricted stock shares and 838 time-based restricted stock shares, both at $0 per share as awards.
On February 2, 2026, 425 shares were withheld at $259.91 per share to cover tax liabilities related to vesting, as permitted under Rule 16b-3. After these transactions, she directly beneficially owned 20,210 shares of Clean Harbors common stock.