Impinj CEO Chris Diorio Receives 3,753 Shares; 1,477 Withheld

What Happened
Chris Diorio, CEO of Impinj (PI), had 3,753 restricted stock units (RSUs) vest and convert into 3,753 shares on August 20, 2026. To satisfy tax withholding on the vesting, 1,477 of those shares were remitted to the issuer at an indicated value of $159.73 per share (total value remitted $235,921). The vesting stems from a grant of 15,015 RSUs made Aug 20, 2025, of which one-fourth vested on Aug 20, 2026.

Key Details

• Transaction date: August 20, 2026; Form 4 filed August 21, 2026 (timely filing).
• Vesting/Conversion: 3,753 RSUs converted into 3,753 shares (reported as derivative conversion). Price shown $0.00 for conversion.
• Tax withholding: 1,477 shares remitted to the issuer (exempt disposition under Rule 16b-3(e)) at $159.73/share = $235,921. (Transaction code F.)
• Shares owned after transaction: not specified in the provided filing excerpt.
• Footnotes: F1 explains the remittance was to satisfy tax withholding; F2 clarifies each RSU equals one share; F3 notes the original RSU grant (15,015 RSUs on Aug 20, 2025; one-fourth vested Aug 20, 2026).

Context

• This was an RSU vesting and settlement with shares withheld for taxes (a routine internal transaction), not an open-market sale or purchase.
• Such tax-withholding dispositions are common and do not by themselves indicate CEO buying or selling activity in the market.