Clean Harbors (CLH) Co-CEO Eric Gerstenberg Forfeits 2,166; Withholds 977

What Happened

• Eric W. Gerstenberg, Co-CEO of Clean Harbors, reported two dispositions tied to equity awards dated 2026-03-13: 2,166 restricted shares were forfeited to the company due to unmet performance targets, and 977 shares were withheld to satisfy tax liabilities (withholding value reported as $282,285, at $288.93 per share). The filing is an amended Form 4 filed 2026-08-14.

Key Details

• Transaction dates: 2026-03-13 (reported via amended filing on 2026-08-14).
• Withholding: 977 shares withheld at $288.93/share = $282,285 (code F — tax withholding incident to vesting under Rule 16b).
• Forfeiture: 2,166 restricted shares forfeited to issuer at $0.00 proceeds (code D) due to performance targets not met.
• Footnotes: F1 = tax withholding of securities; F2 = correction to total number of shares held; F3 = forfeiture due to failure to meet LTIP performance targets.
• Shares owned after the transactions: not explicitly stated in the amended filing (footnote notes a correction to the total held).
• Timeliness: The Form 4 was filed ~5 months after the report date and is marked AMENDED; investors should note the late/amended nature of the disclosure.

Context

• These transactions are not open-market sales or purchases that signal a direct trading decision — the 2,166-share movement is a forfeiture tied to company performance metrics, and the 977-share movement is a routine tax-withholding related to vesting. Such actions reflect award outcomes and tax mechanics rather than voluntary insider selling.