CHRIS DIORIO - 12 Sep 2025 Form 4 Insider Report for IMPINJ INC (PI)

Signature
/s/ Yukio Morikubo, Attorney in fact for Chris Diorio
Issuer symbol
PI
Transactions as of
12 Sep 2025
Net transactions value
$0
Form type
4
Filing time
16 Sep 2025, 16:47:06 UTC
Previous filing
09 Sep 2025
Next filing
16 Sep 2025

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 16 Sep 2025 0001677721

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction PI Common Stock Gift $0 -30,000 -8.9% $0.000000 306,109 12 Sep 2025 Direct F1
holding PI Common Stock 199,362 12 Sep 2025 by DFT L.L.C.
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
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.