Chris Diorio - Apr 12, 2025 Form 4 Insider Report for IMPINJ INC (PI)

Role: CHIEF EXECUTIVE OFFICER, Director
Signature: /s/ Yukio Morikubo, Attorney in fact for Chris Diorio
Stock symbol: PI
Transactions as of: Apr 12, 2025
Transactions value $: -$82,127
Form type: 4
Date filed: 4/14/2025, 07:10 PM
Previous filing: Mar 25, 2025
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	PI	Common Stock	Options Exercise	$0	+3.13K	+0.87%	$0.00	364K	Apr 12, 2025	Direct
transaction	PI	Common Stock	Tax liability	-$82.1K	-1.23K	-0.34%	$66.77	363K	Apr 14, 2025	Direct	F1
holding	PI	Common Stock						487K	Apr 12, 2025	by DFT L.L.C.

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	Options Exercise	$0	-3.13K	-100%	$0.00	0	Apr 12, 2025	Common Stock	3.13K	$0.00	Direct	F2, F3

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

Explanation of Responses:

Id	Content
F1	In an exempt disposition to the Issuer under Rule 16b-3(e), the Reporting Person remitted shares to the Issuer in connection with the satisfaction of tax withholding obligations arising out of the vesting of restricted stock units, or RSUs.
F2	Each RSU represents a contingent right to receive one share of Impinj common stock.
F3	On April 12, 2021, the reporting person was granted 50,000 RSUs, one fourth of which vested on April 12, 2022, with an additional one-sixteenth of such RSUs vesting every three months thereafter. One-sixteenth of these RSUs vested on April 12, 2025.