Company Analysis

Impinj, Inc. (PI)

Nasdaq: PI · Electronic Components, NEC · Seattle, WA · filing with the SEC since 2005
Grade5.1
◀ Past 4.3● Present 5.8▶ Future 5.0

Who owns Impinj, Inc.

As filed with the SEC
Holders of 5% or more
3
Blackrock, Inc. holds 14.7% of Common Stock, as its SCHEDULE 13G/A filed Oct 27, 2026 says.
Directors and officers
9
report now, of 22 people on the record since 2016. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 3 named at left.
Holders of 5% or moreshare of the class, as filed
Blackrock, Inc.
14.7%
Vanguard Portfolio Management
7.15%
State Street Corporation
5.6%
Capital International Investors
SCHEDULE 13G/A · filed May 14, 2026 · Common Stock · reported falling below 5%, from 5.4% in Feb 14, 2025
under 5%
Sylebra Capital LLC
SCHEDULE 13D/A · filed Dec 17, 2025 · Common Stock · reported falling below 5%, from 5% in Dec 5, 2025
under 5%
The Vanguard Group
SCHEDULE 13G/A · filed Mar 27, 2026 · Common Stock · reported falling below 5%
under 5%
What PI reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Voyantic Oy
A company bought · acquisition · Mar 2023 · owns, named in the 10-K filed Feb 9, 2026

6 subsidiaries in 6 countries, from the list filed with the 10-K filed Feb 12, 2024.

Insider tradesForm 4
53sales
0purchases
3sales on a scheduled plan
5people selling
$204Msold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Nov 5, 2025 to Nov 5, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
17181920212223242526
2026 runs to Nov 5, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window5 of 30 on the roster
PersonRole as filedSalesSoldOn a planBuysBought
Sylebra Capital LLCdirector40$176M00$0
Gibson Daniel Patrickdirector8$25.8M00$0
Baker CaryCHIEF FINANCIAL OFFICER2$1.9M20$0
Rao Meeradirector1$300,00010$0
Washington Mirondirector2$200,00000$0
SI Assistanton PI · research, not advice