Dugas Eric J. 4

What Happened

• Eric J. Dugas, Chief Financial Officer of Clean Harbors Inc. (CLH), disposed of a total of 1,954 shares on 2026-03-13.
  • 630 shares were withheld to satisfy tax liabilities at $288.93 per share, valued at $182,026 (payment of tax liability via withholding).
  • 1,324 restricted shares were forfeited (no cash proceeds) because performance targets under the company’s Long Term Equity Incentive Program were not met.

Key Details

• Transaction date: 2026-03-13; Form 4 filed: 2026-03-17 (filed timely).
• Prices/values: 630 shares at $288.93 = $182,026; 1,324 shares at $0.00 = $0 (forfeiture).
• Shares owned after the reported transactions: not specified in the provided filing excerpt.
• Footnotes: F1 — tax withholding of shares incident to vesting; F2 — forfeiture of restricted stock due to unmet performance targets.
• Transaction type: disposals via tax-withholding and forfeiture (not an open-market sale or new purchase).

Context

• The 630-share transaction was a routine withholding to cover taxes on vested securities (common when awards vest). The 1,324-share disposition reflects forfeiture under the company’s performance-based LTIP and does not represent a market sale. These events are administrative and do not necessarily signal insider buying or selling intent.