Reiss Richard 4

What Happened

• Richard Reiss, Group Vice President of Exponent Inc. (EXPO), converted 2,120 vested Restricted Stock Units (RSUs) into 2,120 shares of common stock on March 11, 2026 (1:1 conversion).
• To satisfy tax withholding, 958 of those shares were surrendered at a withholding price of $70.03, producing withholding value of $67,089. Net shares retained from the conversion were 1,162.
• This was not an open-market sale or purchase; it was the vesting/conversion of an equity award with shares withheld for taxes (routine administration of compensation).

Key Details

• Transaction date: March 11, 2026; Form 4 filed March 13, 2026 (appears timely).
• Conversion: 2,120 RSUs converted to 2,120 shares (Footnote F1: RSUs granted Mar 11, 2022, converted 1:1).
• Tax withholding: 958 shares withheld/disposed at $70.03 for $67,089 (Footnote F3: shares withheld to satisfy tax obligations). Footnote F2: Not applicable.
• Net change to holdings: +1,162 shares retained after withholding (filing does not state total beneficial ownership after transaction).
• Transaction codes: M = exercise/conversion of derivative (RSU conversion); F = payment of tax liability via share withholding.

Context

• Converting vested RSUs into shares and withholding a portion to cover taxes is a common administrative event and does not in itself indicate a trading view on the stock.
• Unlike open-market purchases, award vesting is compensation-related; purchases are generally a stronger signal of insider conviction.