Harrison Robert W. 4

What Happened

• Robert W. Harrison, Executive Vice President, EHS at Clean Harbors (CLH), was granted a total of 1,433 shares on Feb 1, 2026: 1,003 performance-based restricted shares and 430 time-based restricted shares (awards, code A; $0.00 per share).
• On Feb 2, 2026, 184 shares were disposed/withheld to satisfy tax withholding obligations (code F) at an effective per-share value of $259.91, totaling $47,823. This withholding is not an open-market sale but a company withholding of shares to cover taxes.

Key Details

• Transaction dates and amounts:
  • 2026-02-01: Granted 1,003 shares (performance-based, $0.00) and 430 shares (restricted, $0.00).
  • 2026-02-02: 184 shares withheld to cover taxes at $259.91/share → $47,823 total.
• Transaction codes: A = Award/Grant; F = Tax withholding (securities withheld to satisfy tax liability).
• Shares owned after the transaction: Not disclosed in the provided filing.
• Filing: Form 4 filed Feb 3, 2026 (the report lists these transactions and related footnotes; no late-filing flag indicated in the provided data).
• Footnotes:
  • F1: Withholding of securities to pay taxes incident to vesting (per Rule 16b-3).
  • F2: The 1,003-share award is performance-based: vests 50% on 3/15/2028 and 50% on 3/15/2029, contingent on 2027 performance metrics.
  • F3: The 430-share award vests 25% on each of Feb 1 of 2027, 2028, 2029, and 2030.

Context

• These awards (code A) are grants from the company and represent compensation/retention incentives rather than open-market purchases by the insider; such grants are common and do not by themselves indicate personal bullish or bearish trading decisions.
• The 184-share disposal was a tax-withholding action (code F), a routine administrative step when restricted shares vest; it differs from an open-market sale.