IMPINJ INC — Director's Dealing 2025

Sep 4, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IMPINJ INC (PI)
CIK: 0001114995
Period of Report: 2025-09-02

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-09-02	Common Stock	S	4517	$180.5592	Disposed	351592	Direct
2025-09-02	Common Stock	S	483	$181.3539	Disposed	351109	Direct
2025-09-03	Common Stock	S	80	$186.3650	Disposed	351029	Direct
2025-09-03	Common Stock	S	925	$187.9578	Disposed	350104	Direct
2025-09-03	Common Stock	S	1438	$189.4900	Disposed	348666	Direct
2025-09-03	Common Stock	S	2557	$190.1530	Disposed	346109	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	199362	Indirect

Footnotes

F1: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan effective on May 28, 2025.

F2: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $180.00 to $180.82, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F3: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $181.185 to $181.54, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F4: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $187.8650 to $188.4050, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F5: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $188.9201 to $189.8300, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F6: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $190.0000 to $190.4050, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.