Cary Baker - Aug 20, 2025 Form 4 Insider Report for IMPINJ INC (PI)

Role: CHIEF FINANCIAL OFFICER
Signature: /s/ Yukio Morikubo, Attorney in fact for Cary Baker
Stock symbol: PI
Transactions as of: Aug 20, 2025
Transactions value $: $0
Form type: 4
Date filed: 8/21/2025, 05:47 PM
Previous filing: Jun 24, 2025
Next filing: Sep 24, 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Baker Cary	CHIEF FINANCIAL OFFICER	400 FAIRVIEW AVE N. SUITE 1200, SEATTLE	/s/ Yukio Morikubo, Attorney in fact for Cary Baker	2025-08-21	0001705407

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	PI	Restricted Stock Units	Award	$0	+6.96K		$0.00	6.96K	Aug 20, 2025	Common Stock	6.96K	$0.00	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each RSU represents a contingent right to receive one share of Impinj common stock.
F2	One-fourth of the shares subject to the grant shall vest on August 20, 2026, and 1/16th of the shares subject to the grant shall vest each quarter thereafter, subject to the reporting person's continued service to the Issuer through such date.