Clean Harbors EVP Charles Geer II Tax Withholding Transaction - 40 Shares Disposed

This SEC Form 4 filing reports that Charles H. Geer II, Executive Vice President of Industrial Services at Clean Harbors Inc (CLH), disposed of 40 shares of common stock on July 1, 2026. The transaction was coded as "F" and involved a payment of tax liability through withholding of securities incident to vesting, in accordance with Rule 16b-3. The shares were disposed at a price of $290.74 per share, resulting in a total transaction value of approximately $11,630. Following this transaction, Geer now holds 10,799 shares of Clean Harbors common stock. The filing indicates this was a direct ownership transaction related to tax obligations on vested securities rather than a market sale decision. The filing was signed on July 6, 2026, and reports activity as of July 1, 2026.