Jewett Bryce Dickinson III 4

What Happened
Jewett Bryce Dickinson III, Executive Vice President and General Counsel of NewMarket Corp (NEU), was granted 415 performance-based restricted shares that settled in common stock on February 5, 2026. To satisfy tax withholding on the vested award, 136 shares were withheld by the company at an indicated per-share value of $714.88, representing $97,224 paid in tax withholding.

Key Details

• Transaction date: February 5, 2026; Form 4 filed February 9, 2026 (timely filing).
• Award (Code A): 415 shares acquired, $0.00 per share (performance stock settled in shares).
• Tax withholding (Code F): 136 shares withheld/disposed at $714.88 per share; total withholding value $97,224.
• Shares owned after transaction: not specified in the provided excerpt of the filing.
• Relevant footnotes from the filing:
  • F1: Compensation Committee certified attainment of performance goals; Performance Stock settled in shares.
  • F2: Shares were withheld by the company to satisfy tax withholding obligations related to the vested Performance Stock.
  • F3: Any increase in reported shares is due to periodic purchases by the Plan Trustee under the plan.

Context: This was a performance-based award settlement (not an open-market purchase). The withholding of shares to cover taxes is a routine administrative disposition and does not necessarily signal a voluntary sale by the insider.