Impinj (PI) CFO Cary Baker Exercises RSUs, Surrenders 424 Shares

What Happened

• Cary Baker, Chief Financial Officer of Impinj (PI), had RSUs vest on 2026-09-23. A total of 1,075 RSUs converted into common shares (479 + 596). To satisfy tax withholding obligations, 424 of those shares were surrendered to the company at $177.20 per share, totaling $75,133. The net result was an increase of 651 shares to Baker’s holdings.
• This was a vesting/conversion event (not an open-market sale). Surrendering shares to cover taxes is a routine, administrative step.

Key Details

• Transaction date: 2026-09-23; Form filed: 2026-09-24 (filed one day after the transaction).
• Conversion (derivative M): 479 and 596 RSUs vested and converted to shares (total 1,075).
• Tax withholding (F): 424 shares surrendered at $177.20 each for $75,133.
• Net shares acquired: +651 shares (1,075 vested − 424 withheld).
• Shares owned after transaction: not specified in the filing.
• Footnotes: (F1) shares remitted to issuer under Rule 16b-3(e) to satisfy tax withholding; (F2) each RSU equals one share; (F3/F4) the vested RSUs came from grants on 3/23/2023 (7,665 RSUs; 1/16 vested = 479) and 3/23/2024 (9,545 RSUs; 1/16 vested = 596).

Context

• RSUs convert to stock with no exercise price (hence $0 listed for conversion); withholding shares to cover taxes is a common, administrative "cashless" step, not a market sale expressing sentiment.
• Transaction codes: M = exercise/convert derivative (RSU conversion), F = shares surrendered for tax withholding.