13F Insight
DOSSIER · 13F Holders · Q1 2026Technology · Semiconductors & Related DevicesDefensive growthQuality
POWI

POWER INTEGRATIONS INC

328 institutions still hold POWER INTEGRATIONS INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 739276103·Semiconductors & Related Devices·328 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 6.1%
vs prior quarter
13F value held
$2.3B
63.0% inst. owned
of float
Holders
328
+48 QoQ
filers reporting
Activity
+29 / −66
+871 added · −690 reduced
this quarter
Concentration
19.01%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

328 institutions reported POWI in Q1 2026. BlackRock, Inc. leads at 19.0% of the visible book. +48 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$436M8.5M0.01%Q1 202602
Vanguard Portfolio Management
CIK 0002100121· Index
$255M5.0M0.01%Q1 202603
Neuberger Berman Group LLC
CIK 0001465109
$201M3.9M0.15%Q1 202604
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$172M3.4M0.03%Q1 202605
STATE STREET CORP
CIK 0000093751
$158M3.1M0.01%Q1 202606
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$128M2.5M0.00%Q1 202607
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
CIK 0001644956
$122M2.4M0.40%Q1 202608
SNYDER CAPITAL MANAGEMENT L P
CIK 0001050477
$108M2.1M2.09%Q1 202609
DISCIPLINED GROWTH INVESTORS INC /MN
CIK 0001050442
$100M2.0M2.05%Q1 202610
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$86M1.7M0.01%Q1 202611
MORGAN STANLEY
CIK 0000895421
$77M1.5M0.00%Q1 202612
JPMORGAN CHASE & CO
CIK 0000019617
$62M1.3M0.00%Q1 202613
Capital International Investors
CIK 0001562230
$57M1.1M0.01%Q1 202614
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$54M1.1M0.01%Q1 202615
Nuveen, LLC
CIK 0001871926
$54M1.0M0.01%Q1 202616
Hudson Bay Capital Management LP
CIK 0001393825
$51M1.0M0.18%Q1 202617
WESTWOOD HOLDINGS GROUP INC
CIK 0001165002
$45M873K0.33%Q1 202618
Robeco Schweiz AG
CIK 0001418427
$45M870K0.94%Q1 202619
NORTHERN TRUST CORP
CIK 0000073124· Index
$43M842K0.01%Q1 202620
Copeland Capital Management, LLC
CIK 0001541743
$42M1.2M0.93%Q4 2025
Page 1 of 17
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