GERSTENBERG ERIC W 4

What Happened

• Eric W. Gerstenberg, Co‑CEO of Clean Harbors Inc. (CLH), reported dispositions on 2026-03-13: 977 shares were withheld to cover tax liability at $288.93 per share (value reported $282,285) and 2,166 restricted shares were forfeited to the issuer at $0.00 because performance targets were not met.

Key Details

• Transaction date: March 13, 2026; Form 4 filed March 17, 2026 (filed within the standard two business days).
• Withholding: 977 shares withheld for tax payment at $288.93/share — reported value $282,285 (footnote F1: withholding incident to vesting under Rule 16b‑3).
• Forfeiture: 2,166 restricted shares forfeited to the issuer due to unmet performance targets under the Long Term Equity Incentive Program (footnote F2).
• Shares owned after the transactions: not specified in the provided excerpt.
• Transaction codes: F = tax withholding; D = disposition to issuer (forfeiture). These were not open‑market sales.

Context

• These actions are administrative (tax withholding on vested awards and forfeiture for unmet performance) rather than discretionary market sales by the insider, so they don't necessarily signal a change in the insider’s view of the company.