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.
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.
Clean Harbors (CLH) executive Robert W. Harrison, EVP EHS, reported equity compensation and related tax withholding transactions. On 02/01/2026 he received 1,003 shares as a performance-based restricted stock award that will vest 50% on 3/15/2028 and 50% on 3/15/2029, based on goals for the 2027 performance period.
He also received 430 shares as a time-based restricted stock award vesting 25% annually from February 1, 2027 through February 1, 2030. On 02/02/2026, 184 shares were withheld at $259.91 per share to cover tax liabilities from vesting. After these transactions, he directly owned 7,034 common shares.
Clean Harbors, Inc. co-CEO Eric W. Gerstenberg reported several equity compensation moves and related tax withholding. On February 1, 2026, he received 10,290 shares of performance-based restricted stock and 10,690 shares of time-based restricted stock at $0 per share. On February 2, 2026, 4,934 shares were withheld at $259.91 per share to cover tax liabilities tied to vesting. After these transactions, he directly held up to 66,500 shares of Clean Harbors common stock. The performance-based award is scheduled to vest in two equal parts in 2028 and 2029, subject to goal achievement, while the time-based award vests in four equal annual installments from 2027 through 2030.
Clean Harbors EVP Industrial Services Charles H. Geer II reported routine equity transactions in company common stock. On February 1, 2026, he received two stock awards: 1,843 shares as a performance-based restricted stock award and 503 shares as a time-vesting restricted stock award, both at no cash cost.
On February 2, 2026, 197 shares were withheld at $259.91 per share to cover tax liabilities related to vesting, as permitted under Rule 16b-3. After these transactions, he directly held 10,963 shares of Clean Harbors common stock.
Clean Harbors executive Sharon M. Gabriel, EVP/CIO (CHESI), reported several stock transactions in early February 2026. On February 1, 2026, she received two awards of common stock: 2,073 shares from a performance-based restricted stock award and 566 shares from a time-based restricted stock award, both at $0 per share.
The performance-based award will vest 50% on March 15, 2028 and 50% on March 15, 2029, depending on meeting goals for the period from January 1, 2027 through December 31, 2027. The time-based award vests 25% each on February 1 of 2027, 2028, 2029, and 2030.
On February 2, 2026, 508 shares of common stock were withheld at $259.91 per share to cover tax liabilities upon vesting, in accordance with Rule 16b-3. After these transactions, Gabriel directly owned 26,733 common shares of Clean Harbors.
Clean Harbors EVP and CFO Eric J. Dugas reported several equity-related transactions in company common stock. On 02/02/2026, 567 shares were withheld at $259.91 per share to cover tax obligations tied to vesting under Rule 16b-3.
On 02/01/2026, he received a performance-based restricted stock award of 3,066 shares, vesting 50% on 3/15/2028 and 50% on 3/15/2029, subject to performance goals for the 1/1/2027–12/31/2027 period. He also received a time-based restricted stock award of 1,022 shares, vesting in four equal annual installments from February 1, 2027 through February 1, 2030. Following these transactions, he directly owned 22,809 shares of Clean Harbors common stock.