POWER INTEGRATIONS INC (POWI) — Institutional Holders, Q2 2026
375 institutional investment managers reported a POWI position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $5.2B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
POWI in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- CONGRESS ASSET MANAGEMENTNew · +930,059 sh+$77.9M
- MASSACHUSETTS FINANCIAL SERVICESNew · +767,672 sh+$64.3M
- AMERICAN CENTURY COMPANIESAdded · +755,107 sh+$63.2M
- Invesco Ltd.Added · +589,710 sh+$49.4M
- PRICE T ROWE ASSOCIATESAdded · +528,456 sh+$44.3M
Biggest sellers
- Neuberger Berman GroupTrimmed · -1,912,709 sh-$160.2M
- Hudson Bay Capital ManagementSold out · -1,000,000 sh-$83.8M
- Copeland Capital ManagementTrimmed · -438,979 sh-$36.8M
- JPMORGAN CHASETrimmed · -414,121 sh-$34.7M
- MARSHALL WACE, LLPSold out · -360,161 sh-$30.2M
POWI 13F holders ranked 1–100 of 375
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | BlackRock#1 · 8,722,053 sh | 8,722,053 | $730.6M | 0.01% | +2.4% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT#2 · 5,190,284 sh | 5,190,284 | $434.7M | 0.02% | +4.3% |
| 3 | WELLINGTON MANAGEMENT GROUP LLP#3 · 3,595,855 sh | 3,595,855 | $301.2M | 0.05% | +7.1% |
| 4 | STATE STREET#4 · 3,194,155 sh | 3,194,155 | $267.5M | <0.01% | +3.8% |
| 5 | VANGUARD CAPITAL MANAGEMENT#5 · 2,511,196 sh | 2,511,196 | $210.3M | <0.01% | +0.2% |
| 6 | WILLIAM BLAIR INVESTMENT MANAGEMENT#6 · 2,382,007 sh | 2,382,007 | $199.5M | 0.60% | +0.1% |
| 7 | Neuberger Berman Group#7 · 2,020,390 sh | 2,020,390 | $169.2M | 0.11% | -48.6% |
| 8 | PRICE T ROWE ASSOCIATES#8 · 1,924,939 sh | 1,924,939 | $161.2M | 0.02% | +37.8% |
| 9 | DISCIPLINED GROWTH INVESTORS#9 · 1,891,864 sh | 1,891,864 | $158.5M | 2.68% | -3.4% |
| 10 | GEODE CAPITAL MANAGEMENT#10 · 1,803,038 sh | 1,803,038 | $151.0M | <0.01% | +7.7% |
| 11 | SNYDER CAPITAL MANAGEMENT L P#11 · 1,766,507 sh | 1,766,507 | $148.0M | 2.56% | -16.0% |
| 12 | Robeco Schweiz AG#12 · 1,340,404 sh | 1,340,404 | $112.3M | — | +54.0% |
| 13 | MORGAN STANLEY#13 · 1,192,455 sh | 1,192,455 | $99.9M | <0.01% | -20.6% |
| 14 | Capital International Investors#14 · 1,183,746 sh | 1,183,746 | $99.2M | 0.02% | +6.4% |
| 15 | DIMENSIONAL FUND ADVISORS#15 · 1,085,077 sh | 1,085,077 | $90.9M | 0.02% | +2.6% |
| 16 | Nuveen#16 · 1,020,059 sh | 1,020,059 | $85.4M | 0.02% | -2.7% |
| 17 | CONGRESS ASSET MANAGEMENT#17 · 930,059 sh | 930,059 | $77.9M | — | New |
| 18 | Copeland Capital Management#18 · 882,810 sh | 882,810 | $73.9M | — | -33.2% |
| 19 | Boston Walden#19 · 882,471 sh | 882,471 | $73.9M | 0.56% | +52.8% |
| 20 | Invesco Ltd.#20 · 870,396 sh | 870,396 | $72.9M | <0.01% | +210.1% |
| 21 | JPMORGAN CHASE#21 · 879,254 sh | 879,254 | $69.6M | <0.01% | -32.0% |
| 22 | AMERICAN CENTURY COMPANIES#22 · 781,675 sh | 781,675 | $65.5M | 0.03% | +2842.2% |
| 23 | MASSACHUSETTS FINANCIAL SERVICES#23 · 767,672 sh | 767,672 | $64.3M | 0.02% | New |
| 24 | NORTHERN#24 · 764,474 sh | 764,474 | $64.0M | <0.01% | -9.2% |
| 25 | Stephens Investment Management Group#25 · 755,549 sh | 755,549 | $63.3M | 0.68% | +1.4% |
| 26 | CHARLES SCHWAB INVESTMENT MANAGEMENT#26 · 753,514 sh | 753,514 | $63.1M | <0.01% | -0.6% |
| 27 | WESTWOOD GROUP#27 · 714,227 sh | 714,227 | $59.8M | 0.45% | -18.2% |
| 28 | BNP Paribas Asset Management Holding S.A.#28 · 502,006 sh | 502,006 | $42.0M | 0.04% | -21.3% |
| 29 | BROWN ADVISORY#29 · 477,227 sh | 477,227 | $40.0M | 0.06% | -30.5% |
| 30 | Bank of New York Mellon#30 · 466,513 sh | 466,513 | $39.1M | <0.01% | +2.5% |
| 31 | Connor, Clark & Lunn Investment Management Ltd.#31 · 409,271 sh | 409,271 | $34.3M | 0.06% | +44.6% |
| 32 | VANGUARD FIDUCIARY#32 · 400,845 sh | 400,845 | $33.6M | <0.01% | +4.1% |
| 33 | BANK OF AMERICA#33 · 381,535 sh | 381,535 | $32.0M | <0.01% | -36.6% |
| 34 | GOLDMAN SACHS GROUP#34 · 379,264 sh | 379,264 | $31.8M | <0.01% | +13.0% |
| 35 | AMERIPRISE FINANCIAL#35 · 370,174 sh | 370,174 | $31.0M | <0.01% | +295.3% |
| 36 | UBS Group AG#36 · 359,770 sh | 359,770 | $30.1M | <0.01% | -42.4% |
| 37 | ASR Vermogensbeheer N.V.#37 · 356,636 sh | 356,636 | $29.9M | — | +3.4% |
| 38 | Tributary Capital Management#38 · 332,001 sh | 332,001 | $27.8M | 2.29% | +2.0% |
| 39 | Aperture Investors#39 · 307,841 sh | 307,841 | $25.8M | 2.33% | New |
| 40 | ENVESTNET ASSET MANAGEMENT#40 · 282,650 sh | 282,650 | $23.7M | <0.01% | -3.5% |
| 41 | LOOMIS SAYLES & L P#41 · 280,087 sh | 280,087 | $23.5M | 0.03% | +19.9% |
| 42 | PRINCIPAL FINANCIAL GROUP#42 · 272,404 sh | 272,404 | $22.8M | 0.01% | +0.4% |
| 43 | FEDERATED HERMES#43 · 267,665 sh | 267,665 | $22.4M | 0.03% | +1.8% |
| 44 | EMERALD ADVISERS#44 · 264,342 sh | 264,342 | $22.1M | 0.52% | +127.8% |
| 45 | SEI INVESTMENTS#45 · 257,799 sh | 257,799 | $21.6M | 0.02% | +18.0% |
| 46 | ProShare Advisors#46 · 195,670 sh | 195,670 | $16.4M | 0.02% | -31.1% |
| 47 | FIRST ADVISORS#47 · 191,764 sh | 191,764 | $16.1M | <0.01% | -1.1% |
| 48 | PUBLIC SECTOR PENSION INVESTMENT BOARD#48 · 191,450 sh | 191,450 | $16.0M | 0.04% | -3.6% |
| 49 | Granite Investment Partners#49 · 186,420 sh | 186,420 | $15.6M | 0.80% | -42.6% |
| 50 | CRAWFORD INVESTMENT COUNSEL#50 · 176,147 sh | 176,147 | $14.8M | 0.25% | -22.7% |
| 51 | EMERALD MUTUAL FUND ADVISERS#51 · 172,196 sh | 172,196 | $14.4M | 0.51% | +180.9% |
| 52 | Ceredex Value Advisors#52 · 161,400 sh | 161,400 | $13.5M | 0.38% | -38.4% |
| 53 | DEUTSCHE BANK AG\#53 · 150,103 sh | 150,103 | $12.6M | <0.01% | -38.4% |
| 54 | RHUMBLINE ADVISERS#54 · 139,613 sh | 139,613 | $11.7M | <0.01% | -12.1% |
| 55 | RIVERBRIDGE PARTNERS#55 · 138,538 sh | 138,538 | $11.6M | 0.32% | -58.8% |
| 56 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#56 · 136,588 sh | 136,588 | $11.4M | <0.01% | +3.7% |
| 57 | Legal & General Group Plc#57 · 133,777 sh | 133,777 | $11.2M | <0.01% | +2.3% |
| 58 | Arosa Capital Management#58 · 125,000 sh | 125,000 | $10.5M | 1.87% | New |
| 59 | JANE STREET GROUP#59 · 117,524 sh | 117,524 | $9.8M | <0.01% | New |
| 60 | Swiss National Bank#60 · 108,600 sh | 108,600 | $9.1M | <0.01% | -0.8% |
| 61 | BESSEMER GROUP#61 · 105,691 sh | 105,691 | $8.9M | 0.01% | -2.4% |
| 62 | Herald Investment Management Ltd#62 · 100,384 sh | 100,384 | $8.4M | — | -42.6% |
| 63 | Russell Investments Group, Ltd.#63 · 99,377 sh | 99,377 | $8.3M | <0.01% | -13.5% |
| 64 | WELLS FARGO & COMPANY#64 · 94,622 sh | 94,622 | $7.9M | <0.01% | +51.6% |
| 65 | Universal- Beteiligungs- und Servicegesellschaft mbH#65 · 91,727 sh | 91,727 | $7.7M | 0.01% | +166.4% |
| 66 | NEW YORK STATE COMMON RETIREMENT FUND#66 · 89,255 sh | 89,255 | $7.5M | <0.01% | +45.9% |
| 67 | NICHOLAS COMPANY#67 · 85,600 sh | 85,600 | $7.2M | 0.13% | -22.3% |
| 68 | Creative Planning#68 · 76,303 sh | 76,303 | $6.4M | <0.01% | +22.7% |
| 69 | OSAIC#69 · 71,593 sh | 71,593 | $6.0M | <0.01% | +4542.9% |
| 70 | ROYAL BANK OF CANADA#70 · 67,269 sh | 67,269 | $5.6M | <0.01% | -18.6% |
| 71 | Allspring Global Investments#71 · 69,905 sh | 69,905 | $5.6M | <0.01% | New |
| 72 | Ariose Capital Management Ltd#72 · 66,578 sh | 66,578 | $5.6M | 2.38% | New |
| 73 | PRUDENTIAL FINANCIAL#73 · 62,688 sh | 62,688 | $5.3M | <0.01% | +9.4% |
| 74 | PALISADE CAPITAL MANAGEMENT#74 · 57,159 sh | 57,159 | $4.8M | 0.21% | New |
| 75 | MANUFACTURERS LIFE INSURANCE COMPANY, THE#75 · 54,451 sh | 54,451 | $4.6M | <0.01% | -11.9% |
| 76 | VANGUARD ASSET MANAGEMENT, Ltd#76 · 51,569 sh | 51,569 | $4.3M | <0.01% | +1.5% |
| 77 | STIFEL FINANCIAL#77 · 50,845 sh | 50,845 | $4.3M | <0.01% | -10.8% |
| 78 | XTX Topco Ltd#78 · 46,758 sh | 46,758 | $3.9M | 0.05% | +40.6% |
| 79 | Madison Asset Management#79 · 45,678 sh | 45,678 | $3.8M | 0.05% | -55.6% |
| 80 | GREAT WEST LIFE ASSURANCE#80 · 45,362 sh | 45,362 | $3.8M | <0.01% | -3.9% |
| 81 | AQR CAPITAL MANAGEMENT#81 · 43,596 sh | 43,596 | $3.7M | <0.01% | -68.3% |
| 82 | ALLIANCEBERNSTEIN L.P.#82 · 70,958 sh | 70,958 | $3.6M | <0.01% | +6.1% |
| 83 | Spears Abacus Advisors#83 · 43,171 sh | 43,171 | $3.6M | 0.06% | -31.8% |
| 84 | HARBOR CAPITAL ADVISORS#84 · 42,682 sh | 42,682 | $3.6M | — | -32.2% |
| 85 | CITADEL ADVISORS#85 · 42,674 sh | 42,674 | $3.6M | <0.01% | -61.2% |
| 86 | CITIGROUP#86 · 41,510 sh | 41,510 | $3.5M | <0.01% | +166.9% |
| 87 | Man Group plc#87 · 40,902 sh | 40,902 | $3.4M | <0.01% | +437.5% |
| 88 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#88 · 40,515 sh | 40,515 | $3.4M | <0.01% | +71.2% |
| 89 | STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM#89 · 39,988 sh | 39,988 | $3.3M | <0.01% | +145.6% |
| 90 | FULLER & THALER ASSET MANAGEMENT#90 · 39,654 sh | 39,654 | $3.3M | <0.01% | +25.2% |
| 91 | RAYMOND JAMES FINANCIAL#91 · 39,222 sh | 39,222 | $3.3M | <0.01% | -34.5% |
| 92 | TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY#92 · 37,011 sh | 37,011 | $3.1M | 0.02% | 0.0% |
| 93 | THRIVENT FINANCIAL FOR LUTHERANS#93 · 36,589 sh | 36,589 | $3.1M | <0.01% | -1.2% |
| 94 | VAN ECK ASSOCIATES#94 · 35,988 sh | 35,988 | $3.0M | <0.01% | +40.3% |
| 95 | Lisanti Capital Growth#95 · 34,790 sh | 34,790 | $2.9M | 0.64% | New |
| 96 | FIRST NATIONAL BANK OF OMAHA#96 · 34,396 sh | 34,396 | $2.9M | 0.08% | -26.6% |
| 97 | LPL Financial#97 · 34,373 sh | 34,373 | $2.9M | <0.01% | -3.5% |
| 98 | PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO#98 · 33,197 sh | 33,197 | $2.8M | <0.01% | -53.3% |
| 99 | Illinois Municipal Retirement Fund#99 · 32,992 sh | 32,992 | $2.8M | 0.03% | +14.8% |
| 100 | MetLife Investment Management#100 · 32,635 sh | 32,635 | $2.7M | 0.01% | +7.8% |
Funds that sold out of POWI in Q2 2026 (30)
Held POWI at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| Hudson Bay Capital Management1,000,000 sh | 1,000,000 | $51.2M |
| MARSHALL WACE, LLP360,161 sh | 360,161 | $18.4M |
| NOMURA325,257 sh | 325,257 | $16.7M |
| Foresight Group Ltd Liability Partnership219,475 sh | 219,475 | $11.2M |
| SILVERCREST ASSET MANAGEMENT GROUP206,508 sh | 206,508 | $10.6M |
| S Squared Technology136,900 sh | 136,900 | $7.0M |
| SORA INVESTORS120,000 sh | 120,000 | $6.1M |
| SCALAR GAUGE MANAGEMENT35,000 sh | 35,000 | $1.8M |
| NEEDHAM INVESTMENT MANAGEMENT25,400 sh | 25,400 | $1.3M |
| EntryPoint Capital16,453 sh | 16,453 | $842.4K |
| Exit Wealth Advisors12,616 sh | 12,616 | $645.9K |
| Van Diest Capital9,290 sh | 9,290 | $475.6K |
| VOLORIDGE INVESTMENT MANAGEMENT8,988 sh | 8,988 | $460.2K |
| Vident Advisory8,522 sh | 8,522 | $436.3K |
| PineStone Asset Management8,500 sh | 8,500 | $435.2K |
| Tactive Advisors7,680 sh | 7,680 | $393.2K |
| Empowered Funds6,180 sh | 6,180 | $316.4K |
| Merit Financial Group4,927 sh | 4,927 | $252.2K |
| Three Seasons Wealth4,523 sh | 4,523 | $231.6K |
| Aster Capital Management (DIFC) Ltd4,074 sh | 4,074 | $205.7K |
| Grandeur Peak Global Advisors3,782 sh | 3,782 | $193.6K |
| Freestone Grove Partners2,342 sh | 2,342 | $119.9K |
| Advisory Services Network501 sh | 501 | $25.6K |
| Signature Equity Partners187 sh | 187 | $9.6K |
| MAI Capital Management125 sh | 125 | $6.4K |
| Root Financial Partners91 sh | 91 | $4.7K |
| Quent Capital48 sh | 48 | $2.5K |
| Whipplewood Advisors43 sh | 43 | $2.2K |
| Richardson Capital Management36 sh | 36 | $1.8K |
| MidFirst Bank21 sh | 21 | $1.1K |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.