DIORIO CHRIS PH.D. 4

What Happened

• Chris DiOrio, CEO of Impinj (PI), had RSUs vest on March 23, 2026. A total of 5,635 RSUs converted into common shares (from prior grants). Of those, 2,218 shares were remitted to the company to satisfy tax withholding, valued at $101.17 per share for a total of $224,395. After withholding, DiOrio received a net ~3,417 shares.
• The filing also reports a grant of 24,806 new RSUs on March 23, 2026. These new RSUs are subject to a multi-quarter vesting schedule described in the footnotes.

Key Details

• Transaction date: March 23, 2026; Form 4 filed March 24, 2026 (timely).
• Vested/conversion (derivative -> shares): 2,594 + 1,224 + 1,817 = 5,635 shares (no cash exercise price).
• Tax withholding (exempt disposition to issuer under Rule 16b-3(e)): 2,218 shares surrendered at $101.17 each = $224,395.
• Net shares added to holdings from vesting: 5,635 − 2,218 = ~3,417 shares.
• New award: 24,806 RSUs granted (one-fourth vests March 23, 2027; thereafter 1/16th each quarter, per footnote).
• Footnotes: RSUs represent rights to one share each; vesting items came from prior grants dated 2022, 2023 and 2024 (one‑sixteenth vested each on 3/23/26).
• Shares owned after transaction: Not specified in the filing.

Context

• These were RSU vesting and related tax-withholding transactions, not open‑market buys or sales. Surrendering shares to cover taxes is a common, administrative step and does not necessarily signal insider sentiment.
• The $0.00 amounts for the derivative entries indicate RSU conversions rather than option exercises requiring cash payment. The withholding was processed as an exempt disposition to the issuer (Rule 16b‑3(e)).