Stock Ownership/POWI

POWER INTEGRATIONS INC (POWI): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in POWI · Information Technology. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
15
13F filers
Aggregate Value
$20.0M
Across holders
Last Price
$53.18
2026-08-24
Sector
Information Technology
GICS
Quarterly fund activity9 increased5 reduced3 exited
Full exits: VOLORIDGE INVESTMENT MANAGEMENT, LLC, Hudson Bay Capital Management LP, MARSHALL WACE, LLP
Institutional Holders of POWI
↗
15 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund44K$3.7M18.3%0.0%Reduced+$3.6MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund43K$3.6M17.9%0.0%Reduced+$559KQ2 2026
Man Group plc
CIK 0001637460
Hedge Fund41K$3.4M17.2%0.0%Added+$2.5MQ2 2026
SHAW D E & CO INC
CIK 0001009207
Hedge Fund26K$2.2M10.9%0.0%Added—Q2 2026
Verition Fund Management LLC
CIK 0001454027
Hedge Fund25K$2.1M10.3%0.0%Added—Q2 2026
Bridgewater Associates, LP
CIK 0001350694
Hedge Fund18K$1.5M7.5%0.0%Added—Q2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund14K$1.1M5.7%0.0%Reduced$-762KQ2 2026
Holocene Advisors, LP
CIK 0001700574
Hedge Fund13K$1.1M5.4%0.0%Reduced$-6.3MQ2 2026
Squarepoint Ops LLC
CIK 0001642575
Hedge Fund10K$815K4.1%0.0%Added—Q2 2026
Brevan Howard Capital Management LP
CIK 0001512857
Hedge Fund3K$228K1.1%0.0%Added—Q2 2026
AQR CAPITAL MANAGEMENT LLCReduced
Hedge Fund
$3.7M· 18.3% of total· 0.0% port· 44K sh· +$3.6M QoQ· Q2 2026
CITADEL ADVISORS LLCReduced
Hedge Fund
$3.6M· 17.9% of total· 0.0% port· 43K sh· +$559K QoQ· Q2 2026
Man Group plcAdded
Hedge Fund
$3.4M· 17.2% of total· 0.0% port· 41K sh· +$2.5M QoQ· Q2 2026
SHAW D E & CO INCAdded
Hedge Fund
$2.2M· 10.9% of total· 0.0% port· 26K sh· — QoQ· Q2 2026
Verition Fund Management LLCAdded
Hedge Fund
$2.1M· 10.3% of total· 0.0% port· 25K sh· — QoQ· Q2 2026
Bridgewater Associates, LPAdded
Hedge Fund
$1.5M· 7.5% of total· 0.0% port· 18K sh· — QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPReduced
Hedge Fund
$1.1M· 5.7% of total· 0.0% port· 14K sh· $-762K QoQ· Q2 2026
Holocene Advisors, LPReduced
Hedge Fund
$1.1M· 5.4% of total· 0.0% port· 13K sh· $-6.3M QoQ· Q2 2026
Squarepoint Ops LLCAdded
Hedge Fund
$815K· 4.1% of total· 0.0% port· 10K sh· — QoQ· Q2 2026
Brevan Howard Capital Management LPAdded
Hedge Fund
$228K· 1.1% of total· 0.0% port· 3K sh· — QoQ· Q2 2026
CAPSTONE INVESTMENT ADVISORS, LLCAdded
Hedge Fund
$202K· 1.0% of total· 0.0% port· 2K sh· — QoQ· Q2 2026
Walleye Capital LLCAdded
Hedge Fund
$67K· 0.3% of total· 0.0% port· 797 sh· +$8K QoQ· Q2 2026
Rockefeller Capital Management L.P.Reduced
Hedge Fund
$24K· 0.1% of total· 0.0% port· 286 sh· $-62K QoQ· Q2 2026
Fulcrum Asset Management LLPAdded
Hedge Fund
$22K· 0.1% of total· 0.0% port· 274 sh· — QoQ· Q2 2026
Ancora Advisors, LLCUnchanged
Hedge Fund
$2K· 0.0% of total· 0.0% port· 25 sh· +$0 QoQ· Q2 2026
1–10 of 15
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