Power Integrations Inc: which funds bought and sold
Institutions that bought and sold Power Integrations shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 210 institutions that filed 13F reports for both quarters added to or opened positions in Power Integrations, and 140 cut or closed them. Together they sold a net 833K shares, −1.3% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 1.6M shares (−7.1%); index fund managers were net buyers of 492K shares (+2.1%). 94 opened a new position and 30 sold out entirely.
Bought, Q2 2026 210 institutions, 94 of them new holders Sold, Q2 2026 140 institutions, 30 of them sold out
Net change, all compared −833K shares (−1.3%)
Net change, active managers −1.6M shares (−7.1%), 25 bought, 20 sold
Buyers versus sellers
210 bought 46 140 sold
Active managers and hedge funds 25 bought · 20 sold · −1.6M
Index fund managers 7 bought · 4 sold · +492K
Other institutions 178 bought · 116 sold · +243K
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Congress Asset Management Co Active manager | +930K New position | 930K | $77.9M |
| Massachusetts Financial Services Co Active manager | +768K New position | 768K | $64.3M |
| American Century Companies Inc Active manager | +755K +2842.2% | 782K | $65.5M |
| Invesco Ltd. | +590K +210.1% | 870K | $72.9M |
| Price T Rowe Associates Inc Active manager | +528K +37.8% | 1.9M | $161M |
| Robeco Schweiz AG | +470K +54.0% | 1.3M | $112M |
| Aperture Investors, LLC | +308K New position | 308K | $25.8M |
| Boston Trust Walden Corp | +305K +52.8% | 882K | $73.9M |
| Ameriprise Financial Inc | +277K +295.3% | 370K | $31M |
| Wellington Management Group LLP Active manager | +240K +7.1% | 3.6M | $301M |
| Vanguard Portfolio Management LLC Index funds | +214K +4.3% | 5.2M | $435M |
| Blackrock, Inc. Index funds | +200K +2.4% | 8.7M | $731M |
| Emerald Advisers, LLC | +148K +127.8% | 264K | $22.1M |
| Geode Capital Management, LLC Index funds | +128K +7.7% | 1.8M | $151M |
| Connor, Clark & Lunn Investment Management Ltd. | +126K +44.6% | 409K | $34.3M |
| Arosa Capital Management LP | +125K New position | 125K | $10.5M |
| Jane Street Group, LLC | +118K New position | 118K | $9.8M |
| State Street Corp Index funds | +116K +3.8% | 3.2M | $267M |
| Emerald Mutual Fund Advisers Trust | +111K +180.9% | 172K | $14.4M |
| Capital International Investors Active manager | +71K +6.4% | 1.2M | $99.2M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Congress Asset Management Co Active manager | +930K New position | 930K | $77.9M |
| Massachusetts Financial Services Co Active manager | +768K New position | 768K | $64.3M |
| American Century Companies Inc Active manager | +755K +2842.2% | 782K | $65.5M |
| Price T Rowe Associates Inc Active manager | +528K +37.8% | 1.9M | $161M |
| Wellington Management Group LLP Active manager | +240K +7.1% | 3.6M | $301M |
| Capital International Investors Active manager | +71K +6.4% | 1.2M | $99.2M |
| Palisade Capital Management, LP Active manager | +57K New position | 57K | $4.8M |
| Loomis Sayles & Co L P Active manager | +47K +19.9% | 280K | $23.5M |
| Man Group PLC Hedge fund | +33K +437.5% | 41K | $3.4M |
| D. E. Shaw & Co., Inc. Hedge fund | +26K New position | 26K | $2.2M |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Neuberger Berman Group LLC Active manager | −1.9M −48.6% | 2.0M | $169M |
| Hudson Bay Capital Management LP Hedge fund | −1.0M Sold out | 0 | — |
| Copeland Capital Management, LLC Active manager | −439K −33.2% | 883K | $73.9M |
| Jpmorgan Chase & Co | −414K −32.0% | 879K | $69.6M |
| Marshall Wace, LLP Hedge fund | −360K Sold out | 0 | — |
| Snyder Capital Management L P Active manager | −338K −16.0% | 1.8M | $148M |
| Nomura Holdings Inc | −325K Sold out | 0 | — |
| Morgan Stanley | −310K −20.6% | 1.2M | $99.9M |
| UBS Group AG | −265K −42.4% | 360K | $30.1M |
| Bank Of America Corp | −220K −36.6% | 382K | $32M |
| Foresight Group Ltd Liability Partnership | −219K Sold out | 0 | — |
| Brown Advisory Inc Active manager | −210K −30.5% | 477K | $40M |
| Silvercrest Asset Management Group LLC | −207K Sold out | 0 | — |
| Riverbridge Partners LLC Active manager | −198K −58.8% | 139K | $11.6M |
| Westwood Holdings Group Inc Active manager | −159K −18.2% | 714K | $59.8M |
| WCM Investment Management, LLC Active manager | −143K −91.2% | 14K | $1.1M |
| Granite Investment Partners, LLC | −139K −42.6% | 186K | $15.6M |
| S Squared Technology, LLC | −137K Sold out | 0 | — |
| BNP Paribas Asset Management Holding S.A. | −136K −21.3% | 502K | $42M |
| Handelsbanken Fonder AB | −126K −85.0% | 22K | $1.9M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Neuberger Berman Group LLC Active manager | −1.9M −48.6% | 2.0M | $169M |
| Hudson Bay Capital Management LP Hedge fund | −1.0M Sold out | 0 | — |
| Copeland Capital Management, LLC Active manager | −439K −33.2% | 883K | $73.9M |
| Marshall Wace, LLP Hedge fund | −360K Sold out | 0 | — |
| Snyder Capital Management L P Active manager | −338K −16.0% | 1.8M | $148M |
| Brown Advisory Inc Active manager | −210K −30.5% | 477K | $40M |
| Riverbridge Partners LLC Active manager | −198K −58.8% | 139K | $11.6M |
| Westwood Holdings Group Inc Active manager | −159K −18.2% | 714K | $59.8M |
| WCM Investment Management, LLC Active manager | −143K −91.2% | 14K | $1.1M |
| AQR Capital Management LLC Hedge fund | −94K −68.3% | 44K | $3.7M |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Congress Asset Management CoActive manager | 930K | $77.9M |
| Massachusetts Financial Services CoActive manager | 768K | $64.3M |
| Aperture Investors, LLC | 308K | $25.8M |
| Arosa Capital Management LP | 125K | $10.5M |
| Jane Street Group, LLC | 118K | $9.8M |
| Allspring Global Investments Holdings, LLC | 70K | $5.6M |
| Ariose Capital Management Ltd | 67K | $5.6M |
| Palisade Capital Management, LPActive manager | 57K | $4.8M |
| Lisanti Capital Growth, LLC | 35K | $2.9M |
| Incline Global Management LLC | 32K | $2.7M |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Hudson Bay Capital Management LPHedge fund | 1.0M | $51.2M |
| Marshall Wace, LLPHedge fund | 360K | $18.4M |
| Nomura Holdings Inc | 325K | $16.7M |
| Foresight Group Ltd Liability Partnership | 219K | $11.2M |
| Silvercrest Asset Management Group LLC | 207K | $10.6M |
| S Squared Technology, LLC | 137K | $7M |
| Sora Investors LLC | 120K | $6.1M |
| Scalar Gauge Management, LLC | 35K | $1.8M |
| Needham Investment Management LLC | 25K | $1.3M |
| Entrypoint Capital, LLC | 16K | $842,394 |
Who holds the shares
- Institutions reporting
- 370
- Ten largest holders
- 53.1% of 13F-reported shares
- Index fund managers
- 37.8% of 13F-reported shares
- Active managers and hedge funds
- 32.7% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 25 | 20 | 12 | 4 | −1.6M | −7.1% |
| Index fund managers | 7 | 4 | 0 | 0 | +492K | +2.1% |
| Other institutions | 178 | 116 | 82 | 26 | +243K | +1.3% |