Clean Harbors INC Form 4 insider transactions

Karyn Polito, a Director at Clean Harbors Inc., reported the acquisition of 460 shares of common stock on May 11, 2026.

Karyn Polito, a Director at Clean Harbors Inc., acquired 460 shares of common stock on May 11, 2026, at a price of $295.13 per share.

Clean Harbors Inc. Director Andrea Robertson reported a charitable gift of 342 common shares on May 11, 2026.

Clean Harbors CO-CEO Eric W. Gerstenberg sold 1,000 shares of common stock at $293 per share on March 18, 2026, under a Rule 10b5-1 plan.

Marcy L. Reed, a director at Clean Harbors Inc., sold 836 shares of common stock for $287.94 per share under a Rule 10b5-1 trading plan.

Clean Harbors EVP Brian P. Weber reported the sale of 4,683 common shares and the forfeiture of 1,869 restricted shares due to unmet performance targets.

Clean Harbors Inc. executive Rebecca Underwood reported the forfeiture of restricted stock due to unmet performance targets and the withholding of shares for tax liability.

Clean Harbors EVP/CIO Sharon M. Gabriel reported the forfeiture of 1,401 shares of restricted stock due to unachieved performance targets.

Clean Harbors Co-CEO Eric W. Gerstenberg forfeited 2,166 shares of restricted stock due to the company not achieving performance targets, alongside a tax-related disposition of 977 shares.

Clean Harbors EVP Robert W. Harrison reported the disposition of 18 shares for tax purposes and 368 restricted shares due to unmet performance targets.

Clean Harbors EVP Charles H. Geer II forfeited 139 restricted shares due to the company not achieving performance targets.

Clean Harbors' EVP Chief Financial Officer, Eric J. Dugas, reported the disposition of 1,954 common shares, including tax-related withholdings and forfeiture due to unmet performance targets.

Clean Harbors Executive Vice President George L. Curtis reported the disposition of common stock, including shares forfeited due to unachieved performance targets.

Clean Harbors' Executive Chairman and CTO, Alan S. McKim, disposed of 1,265 shares of common stock to cover tax obligations related to vesting securities.

Clean Harbors Co-CEO Michael Battles reported the forfeiture of restricted stock due to unmet performance targets and the disposal of shares for tax obligations.

Clean Harbors' Executive Chairman and CTO, Alan S. McKim, reported a planned sale of 100,000 shares of common stock for approximately $29.26 million.

Clean Harbors Inc. Co-CEO Eric W. Gerstenberg reported the sale of 2,500 shares of common stock for $279.86 per share.

Clean Harbors' Executive Chair and CTO, Alan S. McKim, reported the sale of 100,000 shares and a charitable gift of 10,000 shares of common stock.

Clean Harbors Co-CEO Michael Battles reported the acquisition of restricted stock awards and the disposition of shares for tax purposes.

Clean Harbors EVP Brian P. Weber reported the acquisition of restricted stock awards and the disposition of shares for tax purposes, increasing his total beneficial ownership.

Clean Harbors' President & EVP Facilities, Rebecca Underwood, reported the acquisition of restricted stock awards and a tax-related disposition of shares.

Clean Harbors EVP Robert W. Harrison reported the acquisition of restricted stock awards and a tax-related disposition of shares.

Clean Harbors Co-CEO Eric W. Gerstenberg reported the acquisition of restricted stock awards and the disposition of shares for tax obligations.

Clean Harbors EVP Charles H. Geer II reported recent acquisitions of restricted stock awards and a tax-related disposition of common stock.

Clean Harbors' EVP/CIO, Sharon M. Gabriel, reported the acquisition of restricted stock awards and a tax-related disposal of shares.

Clean Harbors' EVP Chief Financial Officer, Eric J. Dugas, increased his direct beneficial ownership of common stock through restricted and performance-based stock awards.

Clean Harbors' EVP and President of Sales & Service, Jeroen Diderich, increased his beneficial ownership through new restricted stock awards, despite a small tax-related disposition.

Clean Harbors' Executive Vice President, George L. Curtis, disposed of 249 shares of common stock to cover tax liabilities related to vesting securities.

Clean Harbors' EVP/CIO, Sharon M. Gabriel, reported the disposition of 525 shares of common stock for tax liability related to vesting.

Clean Harbors Director John R. Welch reported a charitable gift of 415 common stock shares, reducing his direct beneficial ownership to 10,987 shares.