PI

Impinj Inc
Information TechnologyUSCUSIP 453204109◍ Confluence graph
Tracked 13F Holders
285
-115 QoQ
13F Value (tracked)
$3.3B
Insider Net · 180d
-$47.2M
1↑ 2↓
Recent Filings
15
Smart-money sentimentMixed
BearishBullish
13F funds (latest Q)40 adding · 18 trimming
Insider net (180d)-$47.2M

Who owns PI?

285 tracked 13F filers

285 tracked 13F filers disclose a position in PI as of the latest SEC 13F filings, a combined $3.3B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

All quarters use one ordinary-share-equivalent series. Historical ADS are converted at 2 ADS = 1 ordinary share. Expand a row for the exact calculation; the residual is not classified as a trade.
3 source-reported value rows are withheld because the reported units do not agree with same-security peers. Share counts remain visible and unchanged.
#FundPosition valueSharesLast moveAs ofHistory
1BlackRock, Inc.
$443.0M
4.3M
+1.1%
Added · +47K sh
Q1 2026
2FMR LLC
$439.6M
4.3M
−4.9%
Reduced · −220K sh
Q1 2026
3VANGUARD PORTFOLIO MANAGEMENT LLC
$219.8M
2.1M
First observed position
No prior filed position
Q1 2026
4STATE STREET CORP
$243.6M
1.7M
+15%
Added · +216K sh
Q2 2026
5VANGUARD CAPITAL MANAGEMENT LLC
$130.0M
1.3M
First observed position
No prior filed position
Q1 2026
6AMERIPRISE FINANCIAL INC
$88.1M
858K
+2.0%
Added · +17K sh
Q1 2026
7AMERICAN CENTURY COMPANIES INC
$84.0M
818K
+20%
Added · +138K sh
Q1 2026
8SYLEBRA CAPITAL LLC
$111.1M
776K
−31%
Reduced · −356K sh
Q2 2026
9Alyeska Investment Group, L.P.
$75.5M
735K
New
+735K sh
Q1 2026
10GEODE CAPITAL MANAGEMENT, LLC
$105.1M
734K
+7.6%
Added · +52K sh
Q2 2026
11Chevy Chase Trust Holdings, LLC
$74.8M
728K
+6.8%
Added · +46K sh
Q1 2026
12UBS Group AG
$53.2M
518K
+57%
Added · +189K sh
Q1 2026
13UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME
$53.2M
518K
+48%
Added · +168K sh
Q1 2026
14MANUFACTURERS LIFE INSURANCE COMPANY, THE
$43.7M
426K
25×
Added · +409K sh
Q1 2026
15Whale Rock Capital Management LLC
$41.6M
405K
−54%
Reduced · −482K sh
Q1 2026
16NORGES BANK
$55.2M
317K
+247%
Added · +226K sh
Q4 2025
17PRICE T ROWE ASSOCIATES INC /MD/
$31.4M
306K
−56%
Reduced · −387K sh
Q1 2026
18T. Rowe Price Investment Management, Inc.
Withheld
300K
+63%
Added · +116K sh
Q1 2026
19Nuveen, LLC
$30.6M
298K
+38%
Added · +83K sh
Q1 2026
20WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
$42.5M
297K
+16%
Added · +41K sh
Q2 2026
21NORTHERN TRUST CORP
$30.3M
295K
+2.2%
Added · +6K sh
Q1 2026
22Point72 Asset Management, L.P.
$29.7M
289K
Added
Added · +289K sh
Q1 2026
23GOLDMAN SACHS GROUP INC
$28.2M
275K
−4.1%
Reduced · −12K sh
Q1 2026
24MORGAN STANLEY
$27.9M
271K
−0.1%
Reduced · −271 sh
Q1 2026
25WESTFIELD CAPITAL MANAGEMENT CO LP
$38.8M
271K
New
+271K sh
Q2 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is PI being bought or sold by institutions?

Last quarter, 9 funds opened a new position in PI and 31 added to an existing one, while 18 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened (NEW)
9
funds
Added
31
funds
Reduced
18
funds
Exited
0
funds

Funds that own PI also own

CompanyCo-held byCombined value
AMAZON.COM INCAMZN153 funds$184.2B
NVIDIA CORPNVDA150 funds$361.2B
MICROSOFT CORPMSFT150 funds$235.7B
ALPHABET INC-CL AGOOGL150 funds$141.4B
META PLATFORMS INC-CLASS AMETA150 funds$103.5B
APPLE INCAAPL148 funds$261.2B
BROADCOM INCAVGO145 funds$140.7B
ELI LILLY & COLLY145 funds$72.8B
ALPHABET INC-CL CGOOG140 funds$114.3B
TESLA INCTSLA140 funds$66.6B
JPMORGAN CHASE & COJPM140 funds$50.2B
VISA INC-CLASS A SHARESV138 funds$52.3B

Ranked by how many of PI's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$7.4M
1 insiders
Sells · 180d
$54.6M
2 insiders
Net
-$47.2M
22 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Aug 10, 2026Baker CaryCHIEF FINANCIAL OFFICERSell (S)1K$264K
Jun 9, 2026SYLEBRA CAPITAL LLCDirectorSell (S)19K$2.4M
Jun 8, 2026SYLEBRA CAPITAL LLCDirectorSell (S)13K$1.6M
Jun 8, 2026SYLEBRA CAPITAL LLCDirectorSell (S)33K$4.3M
Jun 5, 2026SYLEBRA CAPITAL LLCDirectorSell (S)12K$1.5M
Jun 5, 2026SYLEBRA CAPITAL LLCDirectorSell (S)36K$4.4M
Jun 4, 2026SYLEBRA CAPITAL LLCDirectorSell (S)33K$4.6M
Jun 3, 2026SYLEBRA CAPITAL LLCDirectorSell (S)6K$879K
Jun 2, 2026SYLEBRA CAPITAL LLCDirectorSell (S)39K$5.5M
Jun 1, 2026SYLEBRA CAPITAL LLCDirectorSell (S)7K$1.0M
May 29, 2026SYLEBRA CAPITAL LLCDirectorSell (S)49K$7.3M
May 11, 2026SYLEBRA CAPITAL LLCDirectorBuy (S)24K$3.7M

Institutional ownership over time

136 funds-84 since Q3 2024
0139278Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
funds holding aggregate valuelatest $814.1M · 1 values withheld

Share classes

Class13F holdersValue held
PIthis pagecs285 funds$3.3B
PI 1.125 05/15/27SDBCV5 funds$54.1M

Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.

Recent filings

15 shown

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Connected entities for PI

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Ask your agent what changed in PI

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/PI/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for PI.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for PI. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.