IMPINJ INC — Director's Dealing 2025

Sep 16, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IMPINJ INC (PI)
CIK: 0001114995
Period of Report: 2025-09-12

Reporting Person: DIORIO CHRIS PH.D. (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-09-12	Common Stock	G	30000	—	Disposed	306109	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	199362	Indirect

Footnotes

F1: Pursuant to the terms of a Lock-Up Agreement executed by the Reporting Person in favor of the underwriters of the Company's 0% Convertible Senior Notes offering in September 2025, the Reporting Person is permitted to gift up to 30,000 common shares beneficially owned during the lock-up period.