IMPINJ INC — Director's Dealing 2026

Feb 23, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IMPINJ INC (PI)
CIK: 0001114995
Period of Report: 2026-02-20

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-20	Common Stock	A	21734	—	Acquired	394320	Direct
2026-02-20	Common Stock	F	7435	$127.92	Disposed	386885	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	199362	Indirect

Footnotes

F1: On March 23, 2023, the Reporting Person was granted performance restricted stock units (PSUs). The PSUs vested upon the Reporting Person's satisfaction of certain performance criteria. On February 18, 2026, the Issuer's Board of Directors determined the level at which the corporate performance goals were attained, resulting in the vesting of 21,734 shares of Common Stock underlying the PSUs.

F2: 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 the PSUs.