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CIK 0001114995 · Large accelerated filer

IMPINJ INC

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Ticker
PI
Exchange
Nasdaq
Industry
Electronic Components, NEC
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
912041398
Phone
206-517-5300
Business address
400 FAIRVIEW AVENUE NORTH, SUITE 1200, SEATTLE, WA, 98109
Former names
IMPINJ INC
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$18,797,642
in 4 filings, $2.0M under 10b5-1 plans

Net −$18,797,642. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. SYLEBRA CAPITAL LLC −$16.7M Director sold 12% of stake
  2. Baker Cary −$1.6M CHIEF FINANCIAL OFFICER sold 10% of stake
  3. Rao Meera −$349K Director sold 15% of stake
  4. WASHINGTON MIRON −$139K Director sold 16% of stake
Date Insider Transaction Shares Price Value Owned after
2025-11-06 SYLEBRA CAPITAL LLC See Footnotes Sale −23,157 $171.95 $4.0M 1,804,590
2025-11-03 SYLEBRA CAPITAL LLC See Footnotes Sale −1,513 $202.01 $306K 1,827,747
2025-10-30 DIORIO CHRIS PH.D. CHIEF EXECUTIVE OFFICER Option exercise +23,500 $22.40 $526K 378,005
2025-10-30 DIORIO CHRIS PH.D. CHIEF EXECUTIVE OFFICER Option exercise · Stock Option (right to buy) −23,500 0
2025-10-20 Valdez Arthur L Jr Director Grant or award · Restricted Stock Units +1,220 1,220
2025-09-23 Baker Cary CHIEF FINANCIAL OFFICER Option exercise +781 81,135
2025-09-23 Baker Cary CHIEF FINANCIAL OFFICER Option exercise +479 81,614
2025-09-23 Baker Cary CHIEF FINANCIAL OFFICER Option exercise +597 82,211
2025-09-23 Baker Cary CHIEF FINANCIAL OFFICER Shares withheld for taxes −732 $184.97 $135K 81,479
2025-09-23 Baker Cary CHIEF FINANCIAL OFFICER Option exercise · Restricted Stock Units −781 1,563
2025-09-23 Baker Cary CHIEF FINANCIAL OFFICER Option exercise · Restricted Stock Units −479 2,875
2025-09-23 Baker Cary CHIEF FINANCIAL OFFICER Option exercise · Restricted Stock Units −597 5,966
2025-09-23 DIORIO CHRIS PH.D. CHIEF EXECUTIVE OFFICER Option exercise +2,594 353,682
2025-09-23 DIORIO CHRIS PH.D. CHIEF EXECUTIVE OFFICER Option exercise +1,224 354,906
2025-09-23 DIORIO CHRIS PH.D. CHIEF EXECUTIVE OFFICER Option exercise +1,818 356,724
2025-09-23 DIORIO CHRIS PH.D. CHIEF EXECUTIVE OFFICER Shares withheld for taxes −2,219 $184.97 $410K 354,505
2025-09-23 DIORIO CHRIS PH.D. CHIEF EXECUTIVE OFFICER Option exercise · Restricted Stock Units −2,594 5,188
2025-09-23 DIORIO CHRIS PH.D. CHIEF EXECUTIVE OFFICER Option exercise · Restricted Stock Units −1,224 7,343
2025-09-23 DIORIO CHRIS PH.D. CHIEF EXECUTIVE OFFICER Option exercise · Restricted Stock Units −1,818 18,172
2025-09-18 DIORIO CHRIS PH.D. CHIEF EXECUTIVE OFFICER Option exercise +47,039 $33.77 $1.6M 344,052

Page 8 of 106 · 2,104 trades