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Livermore
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Power Integrations Inc

POWI
Exchange
Nasdaq
Industry
Semiconductors & Related Devices
SEC CIK
0000833640

In the last 90 days, Power Integrations Inc insiders filed 0 open-market purchases and 1 sale; 373 institutions reported holding it in 13F filings for Q2 2026, worth $5.24B in total; no superinvestor holds it.

Q4 2025 vs. Q3 2025

How the institutions holding Power Integrations Inc changed between Q3 2025 and Q4 2025.

All holders in Q4 2025All holders in Q3 2025

13F holders of POWI: Q3 2025 compared with Q4 2025
MeasureQ3 2025Of which not filed for Q4 2025Q4 2025Change
Holders3153299−13
Shares55.9M6.59K59.7M+3.82M (+6.8%)
Value$2.25B$265.4K$2.12B−$123.8M (−5.5%)

3 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (55)

Institutions that held Power Integrations Inc at the end of Q4 2025 but not at the end of Q3 2025.

Institutions new to POWI in Q4 2025
InstitutionSharesValue% of portfolio
Westwood Holdings Group Inc.1,037,517$36.9M0.30%
Nomura Holdings Inc654,046$23.2M0.07%
Grandeur Peak Global Advisors, LLC305,529$10.9M1.46%
Silvercrest Asset Management Group LLC229,525$8.16M0.06%
Public Sector Pension Investment Board191,500$6.81M0.02%
Sora Investors LLC56,326$2.00M0.17%
Arosa Capital Management LP40,000$1.42M0.91%
Spears Abacus Advisors LLC31,826$1.13M0.02%
Gsa Capital Partners LLP30,174$1.07M0.09%
Cambridge Investment Research Advisors, Inc.26,082$927.0K0.00%
Algert Global LLC23,140$822.4K0.01%
Winton Group Ltd20,266$720.3K0.02%
Legato Capital Management LLC20,019$711.5K0.06%
Mirabella Financial Services LLP18,156$645.3K0.06%
XTX Topco Ltd13,596$483.2K0.01%
Evergreen Capital Management LLC12,828$455.9K0.01%
Exit Wealth Advisors, LLC.12,074$429.1K0.25%
State of Wyoming11,217$398.7K0.04%
Oddo BHF Asset Management SAS9,414$334.6K0.01%
Old West Investment Management, LLC8,985$319.3K0.06%
Maryland State Retirement & Pension System8,137$289.2K0.01%
Skopos Labs, Inc.7,642$274.3K0.01%
American Century Companies Inc6,919$245.9K0.00%
Profund Advisors LLC6,776$240.8K0.01%
Walleye Trading LLC6,709$238.4K0.00%
Odyssean, LLC6,624$235.4K0.17%
Two Sigma Investments, LP6,604$234.7K0.00%
Sanctuary Advisors, LLC6,492$230.7K0.00%
Laird Norton Trust Company, LLC6,469$229.9K0.00%
HighTower Advisors, LLC6,409$227.8K0.00%
Argos Wealth Advisors, LLC6,253$222.2K0.06%
Group One Trading, L.P.4,864$172.9K0.01%
Jones Financial Companies LLLP1,425$50.6K0.00%
Eurizon Capital SGR S.p.A.1,323$47.6K0.00%
Kestra Advisory Services, LLC1,009$35.9K0.00%
Basecamp Wealth Advisors LLC546$19.4K0.00%
Los Angeles Capital Management LLC280$11.4K0.00%
Salomon & Ludwin, LLC268$10.1K0.00%
Pinnacle Wealth Planning Services, Inc.278$9.88K0.00%
International Assets Investment Management, LLC156$5.54K0.00%
Signature Equity Partners, LLC133$4.73K0.00%
Asset Planning,Inc126$4.47K0.00%
AdvisorNet Financial, Inc116$4.12K0.00%
Luminist Capital LLC111$3.94K0.00%
GPS Wealth Strategies Group, LLC60$2.13K0.00%
Quent Capital, LLC45$1.60K0.00%
Clear Street Markets LLC35$1.24K0.00%
Zions Bancorporation, National Association33$1.17K0.00%
CX Institutional17$1.00K0.00%
Keating Financial Advisory Services, Inc.22$7820.00%
MidFirst Bank21$7460.00%
Cedar Mountain Advisors, LLC10$3550.00%
Ankerstar Wealth, LLC7$2490.00%
Gilpin Wealth Management, LLC4$1430.00%
Dunhill Financial, LLC1$460.00%

Sold out (68)

Institutions that held Power Integrations Inc at the end of Q3 2025 and filed for Q4 2025 without it.

Institutions that sold out of POWI in Q4 2025
InstitutionShares, Q3 2025Value, Q3 2025
Congress Asset Management Co593,599$23.9M
Fiera Capital Corp449,344$18.1M
Jane Street Group, LLC272,429$11.0M
WCM Investment Management, LLC258,581$10.2M
Squarepoint Ops LLC236,703$9.52M
Westerly Capital Management, LLC120,000$4.83M
Walleye Capital LLC114,064$4.59M
Qube Research & Technologies Ltd112,758$4.53M
Y-Intercept (Hong Kong) Ltd99,393$4.00M
Verition Fund Management LLC90,853$3.65M
Twinbeech Capital LP74,056$2.98M
Global Alpha Capital Management Ltd.67,137$2.70M
Tudor Investment Corp Et Al65,655$2.64M
State of New Jersey Common Pension Fund D47,216$1.90M
Gotham Asset Management, LLC44,873$1.80M
Occudo Quantitative Strategies LP44,457$1.79M
B. Metzler seel. Sohn & Co. AG42,955$1.73M
Schonfeld Strategic Advisors LLC41,533$1.67M
Magnetar Financial LLC39,461$1.59M
Man Group plc30,903$1.24M
Summit Wealth Group LLC29,300$1.09M
Aigen Investment Management, LP20,120$809.0K
Entropy Technologies, LP19,804$796.3K
Dynamic Technology Lab Private Ltd18,840$757.0K
Boothbay Fund Management, LLC17,608$708.0K
Arrowstreet Capital, Limited Partnership16,938$681.1K
Headlands Technologies LLC16,544$665.2K
Axq Capital, LP13,532$544.1K
State of Michigan Retirement System13,318$535.5K
Brinker Capital Investments, LLC13,298$534.7K
Neo Ivy Capital Management12,962$521.2K
Freestone Grove Partners LP12,588$506.2K
Northwestern Mutual Investment Management Company, LLC12,503$502.7K
New Mexico Educational Retirement Board11,600$466.0K
Catalyst Private Wealth, LLC9,620$386.8K
NJ State Employees Deferred Compensation Plan8,600$345.8K
Xponance, Inc.7,958$320.0K
DRW Securities, LLC8,049$315.7K
MML Investors Services, LLC7,510$302.0K
Two Sigma Securities, LLC7,330$294.7K
Diversified Trust Co5,872$236.1K
Inceptionr LLC5,847$235.1K
MQS Management LLC5,608$225.5K
Gibbs Wealth Management5,470$220.0K
Atria Investments LLC5,154$207.3K
O'Shaughnessy Asset Management, LLC5,133$206.4K
Securian Asset Management, Inc4,155$167.1K
Bayforest Capital Ltd3,834$154.2K
Mather Group, LLC.503$20.2K
Optiver Holding B.V.494$19.9K
Principal Securities, Inc.420$16.9K
Tortoise Investment Management, LLC348$14.0K
Rise Advisors, LLC267$10.7K
Advisory Services Network, LLC217$8.72K
Wealthspire Advisors, LLC116$4.67K
Truvestments Capital LLC98$3.96K
Steward Partners Investment Advisory, LLC58$2.33K
Bell Investment Advisors, Inc38$1.53K
Cape Investment Advisory, Inc.34$1.37K
Whittier Trust Co of Nevada Inc31$1.20K
JFS Wealth Advisors, LLC24$966
Financial Network Wealth Advisors LLC21$856
Halbert Hargrove Global Advisors, LLC18$724
Central Trust Co14$563
Quest 10 Wealth Builders, Inc.14$563
Kilter Group LLC6$242
Essential Partners LLC3$121
Retirement Wealth Solutions LLC1$31

Not filed for Q4 2025 yet (3)

Institutions that held Power Integrations Inc at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding POWI in Q3 2025 that haven't filed for Q4 2025
InstitutionShares, Q3 2025Value, Q3 2025
CIBC Bancorp USA Inc.6,047$243.2K
Shell Asset Management Co339$14.0K
Binnacle Investments Inc206$8.28K