$PI

$174.81 +$2.58 (1.5%) Close

$PI Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 30.6M shares outstanding

Who owns PI?

By type of holder

Institutions 100.0% Insiders 0.0% Everyone else 0.0%

Concentration Top 10 holders own 66.7%

FMR LLC 14.9% · BlackRock, Inc. 14.6%

Institutional ownership

100.0%

0 pts vs last qtr

Institutional holders

315

+24 vs last qtr

Net shares bought

+889.8K

by institutions in Q2 2026

New / sold out

67 / 43

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Millennium Management LLC +732.1K
Broad Bay Capital Management, LP NEW +328.7K

Biggest sellers in Q2 2026

Alyeska Investment Group, L.P. SOLD OUT −734.8K
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC −413.1K

Who is planning to sell?

Notices of proposed sale, last 12 months

$49.4M

24 notices from 3 people

Shares covered

307.4K

1.01% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Sylebra Capital LLC See remarks $47.3M
Baker Cary Officer 10b5-1 $1.91M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2020–FY2025

+28.3%

+5.11% a year

Each share's claim on the business

−22.1%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $268M

over 6 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years66% 3–5 years2% 1–3 years21% Under 1 year12%

Quarterly turnover

11.8%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting PI on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
F FMR LLC	4.6M	14.93%	+282.2K (+6.6%)	≤2021	0.0%
Shares held by quarter Peak holding4.6M (Q2'26) Change over 8 quarters+345.4K Share of the company14.930% FMR LLC's full portfolio →
B BlackRock, Inc.	4.4M	14.56%	+135.9K (+3.2%)	≤2021	0.0%
Shares held by quarter Peak holding4.4M (Q2'26) Change over 8 quarters+661.2K Share of the company14.560% BlackRock, Inc.'s full portfolio →

FMR LLC

4.6M

% of company

14.93%

Change vs last qtr

+282.2K (+6.6%)

Held since

≤2021

BlackRock, Inc.

4.4M

% of company

14.56%

Change vs last qtr

+135.9K (+3.2%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Impinj, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting PI on Form N-PORT; together they hold 58.9% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
SW SMALLCAP World Fund Inc SMALLCAP World Fund Inc	$345M	2.4M	7.89%	0.37%	June 30, 2026
IC iShares Core S&P Small-Cap ETF iShares Trust	$234M	1.6M	5.35%	0.21%	June 30, 2026

SMALLCAP World Fund Inc

Position value

$345M

% of company

7.89%

% of the fund

0.37%

As of

June 30, 2026

iShares Core S&P Small-Cap ETF

iShares Trust

Position value

$234M

% of company

5.35%

% of the fund

0.21%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Impinj, Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
DC Diorio Chris PH.D. Insider	1.7M	5.59%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company5.590% Diorio Chris PH.D.'s insider activity →
SC Sylebra Capital Ltd 5%+ holder 13D · 3.8%	1.1M	3.71%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company3.710% Disclosed stake13D · 3.8% View the 13D/G filing →

Diorio Chris PH.D.

Insider

1.7M

% of company

5.59%

Change vs last qtr

—

Held since

—

Sylebra Capital Ltd

5%+ holder13D · 3.8%

1.1M

% of company

3.71%

Change vs last qtr

—

Held since

—

11 more holders behind a free account

See every insider and 5%+ holder of Impinj, Inc..

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