CHRIS DIORIO - 01 May 2025 Form 4 Insider Report for IMPINJ INC (PI)

Role: CHIEF EXECUTIVE OFFICER, Director
Signature: /s/ Yukio Morikubo, Attorney in fact for Chris Diorio
Issuer symbol: PI
Transactions as of: 01 May 2025
Transactions value $: $0
Form type: 4
Filing time: 05 May 2025, 16:37:46 UTC
Previous filing: 14 Apr 2025
Next filing: 24 Jun 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
DIORIO CHRIS PH.D.	CHIEF EXECUTIVE OFFICER, Director	400 FAIRVIEW AVENUE NORTH, SUITE 1200, SEATTLE	/s/ Yukio Morikubo, Attorney in fact for Chris Diorio	05 May 2025	0001677721

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	PI	Common Stock	Other	$0	-288K	-59.1%	$0.00	199K	01 May 2025	by DFT L.L.C.	F1
holding	PI	Common Stock						363K	01 May 2025	Direct

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

Explanation of Responses:

Id	Content
F1	Distribution of shares of Common Stock held in a trust managed by an independent trustee for the benefit of the reporting person's descendants by DFT L.L.C. for no consideration. Following the transaction, the reporting person is no longer the beneficial owner of the shares of Common Stock.