Impinj PI Insider Ownership

NASDAQ PI

$168.54 -6.78 (-3.87%)

At close: Nov 13, 2026 · 4:00 PM EST

Insider Holdings by Owner

5.59Mn Shares

Capital Ltd Sylebra4.20Mn75.0%

Capital Llc Sylebra685.75K12.3%

Chris Ph.D. Diorio346.27K6.2%

Cary Baker81.04K1.4%

Hussein Mecklai75.88K1.4%

Other insiders (11)207.80K3.7%

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

9.14%

▼-0.208% pp QoQ

Shares Held by Insiders

2.82Mn

filed for Sep 2026

▼-1.24% QoQ

Shares Outstanding

30.86Mn

30,860,000 shares

Direct Holdings

672.20K

Indirect: 2.15Mn

Net Open-Market Trades

-11.12K

net sold · -$2.05Mn in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Open-Market Insider Trades

Bought Sold

Latest quarter —

Net over range —

Net-buying quarters —

Insider Ownership Summary

Updated Nov 13, 2026

Across the past 12 months, open-market trades by Impinj insiders were all sales, totaling $170.97 million (1.1Mn shares).

Impinj's open-market sales in the past 12 months came from 4 insiders; no insider bought.
Sylebra Capital LLC (Director) was PI's largest open-market seller in the past 12 months, with $168.57 million of sales (1.09Mn shares); the latest was on November 4, 2026.
Beyond open-market trades, insiders at Impinj received 30.24K shares in stock awards, acquired 36.47K shares through option exercises and conversions, gave up 20.97K shares to cover taxes or exercise prices and gave away 59.84K shares as gifts in the last 12 months.
Per Business Quant, PI insiders together hold 2.72Mn shares based on their latest Form 4 filings, or 8.81% of the 30.86Mn shares outstanding; that total is down 4.76% from 2.86Mn shares at the end of Q2 2026.
Of the 2.72Mn shares held by Impinj insiders, 661.69K shares (24.33%) are held directly and 2.06Mn shares (75.67%) indirectly, through trusts, partnerships, family members and other entities.
PI's insider total is spread across 12 insiders who have filed a Form 4 in the past two years.
PI's three largest insider shareholders, per their latest Form 4 filings, are Sylebra Capital LLC (Director, 1.84Mn shares), Chris Diorio (Chief Executive Officer, 545.63K shares) and Cary Baker (Chief Financial Officer, 81.04K shares).
Sylebra Capital LLC holds 67.52% of the combined insider position in Impinj.
In the past year, 9 insiders of Impinj submitted 52 Form 4 filings reporting trades, awards or other transactions.
Insider figures for PI include Form 4 filings through November 5, 2026.

Form 4 Holdings

Insiders Holding PI

Insiders 16

Shares held 5.59Mn

Of outstanding 18.13%

#	Insider	Position	Direct	Indirect	Total	Share of Insiders	Last Filed
1	Capital Ltd Sylebra	TenPercentOwner	0	4,197,352	4,197,352	75.0%	22 Nov, 2023
2	Capital Llc Sylebra	Director	0	685,752	685,752	12.3%	05 Nov, 2026
3	Chris Ph.D. Diorio	Chief Executive Officer	346,265	0	346,265	6.2%	13 Oct, 2026
4	Cary Baker	Chief Financial Officer	81,039	0	81,039	1.4%	24 Sep, 2026
5	Hussein Mecklai	Chief Operating Officer	75,882	0	75,882	1.4%	14 Apr, 2025
6	Jeffrey Dossett	Chief Revenue Officer	71,886	0	71,886	1.3%	24 Feb, 2025
7	Gregory Sessler	Director	28,257	0	28,257	0.5%	12 Jun, 2023
8	Oppen Peter H Van	Director	24,266	0	24,266	0.4%	13 Jun, 2022
9	Daniel Patrick Gibson	Director	23,010	0	23,010	0.4%	29 May, 2026
10	Theresa Wise	Director	14,850	0	14,850	0.3%	13 Jun, 2022
11	Steve Sanghi	Director	13,274	0	13,274	0.2%	29 May, 2026
12	Cathal G Phelan	Chief Innovation Officer	10,431	0	10,431	0.2%	21 May, 2025
13	Meera Rao	Director	9,593	0	9,593	0.2%	30 Oct, 2026
14	Umesh Padval	Director	6,654	0	6,654	0.1%	29 May, 2026
15	Miron Washington	Director	4,354	0	4,354	0.1%	16 Sep, 2026
16	Arthur L Jr Valdez	Director	1,220	0	1,220	0.0%	21 Oct, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

2,083 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
03 Nov, 2026	Capital Llc Sylebra	Director	Disposed S	49,691	$185.23	$9.20Mn	726,252	Indirect
04 Nov, 2026	Capital Llc Sylebra	Director	Disposed S	40,500	$184.23	$7.46Mn	685,752	Indirect
29 Oct, 2026	Meera Rao	Director	Disposed S	1,729	$201.60	$348.57K	9,593	Direct
20 Oct, 2026	Arthur L Jr Valdez	Director	Acquired M	1,220	$0.00	$0	1,220	Direct
20 Oct, 2026	Arthur L Jr Valdez	Director	Disposed M	1,220	$0.00	$0	0	Direct
12 Oct, 2026	Chris Ph.D. Diorio	Chief Executive Officer	Disposed G	10,000	$0.00	$0	346,265	Direct
23 Sep, 2026	Cary Baker	Chief Financial Officer	Acquired M	479	$0.00	$0	80,867	Direct
23 Sep, 2026	Chris Ph.D. Diorio	Chief Executive Officer	Acquired M	1,224	$0.00	$0	355,645	Direct
23 Sep, 2026	Cary Baker	Chief Financial Officer	Acquired M	596	$0.00	$0	81,463	Direct
23 Sep, 2026	Chris Ph.D. Diorio	Chief Executive Officer	Acquired M	1,817	$0.00	$0	357,462	Direct
23 Sep, 2026	Chris Ph.D. Diorio	Chief Executive Officer	Disposed F	1,197	$177.20	$212.11K	356,265	Direct
23 Sep, 2026	Cary Baker	Chief Financial Officer	Disposed F	424	$177.20	$75.13K	81,039	Direct
23 Sep, 2026	Cary Baker	Chief Financial Officer	Disposed M	479	$0.00	$0	959	Direct
23 Sep, 2026	Cary Baker	Chief Financial Officer	Disposed M	596	$0.00	$0	3,580	Direct
23 Sep, 2026	Chris Ph.D. Diorio	Chief Executive Officer	Disposed M	1,224	$0.00	$0	2,448	Direct
23 Sep, 2026	Chris Ph.D. Diorio	Chief Executive Officer	Disposed M	1,817	$0.00	$0	10,904	Direct
21 Sep, 2026	Cary Baker	Chief Financial Officer	Disposed S	8,892	$185.00	$1.65Mn	80,388	Direct
15 Sep, 2026	Miron Washington	Director	Disposed S	800	$173.26	$138.61K	4,354	Direct
14 Sep, 2026	Chris Ph.D. Diorio	Chief Executive Officer	Disposed G	10,000	$0.00	$0	354,421	Direct
20 Aug, 2026	Cary Baker	Chief Financial Officer	Acquired M	1,739	$0.00	$0	89,965	Direct

Showing 1 to 20 of 2,083 transactions