GERSTENBERG ERIC W 4

What Happened

• Eric W. Gerstenberg, Co-CEO of Clean Harbors, had 564 shares withheld on July 1, 2026 to satisfy tax obligations tied to a vesting event. The withholding price was $290.74 per share, for a total value of approximately $163,977. This was a tax-withholding disposition (routine), not an open-market sale indicating a directional bet.

Key Details

• Transaction date: 2026-07-01; Filing date: 2026-07-06 (appears timely given typical 2-business-day requirement and holiday timing).
• Price used for withholding: $290.74 per share.
• Shares withheld/disposed: 564 shares; total value ≈ $163,977.
• Shares owned after transaction: Not specified in this filing.
• Footnote: F1 — Payment of tax liability by withholding of securities incident to vesting of securities in accordance with Rule 16b-3.
• Transaction type: Tax withholding (code F) — a routine disposition to cover tax liability, not a voluntary cash sale.

Context

• Withholding of shares to cover taxes is common when restricted stock or other equity awards vest; it reduces the insider's share count but does not necessarily signal a view on the company’s prospects.
• For retail investors, purchases (buys) typically carry more informational weight than routine withholdings; this filing is primarily administrative.