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; 372 institutions reported holding it in 13F filings for Q2 2026, worth $5.24B in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Power Integrations Inc as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 308
- +15 vs. Q4 2025
- Shares held
- 63.5M
- +11.4M (+21.9%) vs. Q4 2025
- Total value
- $3.24B
- +$1.39B (+75.2%) vs. Q4 2025
- New holders
- 53
- 118 more added
- Sold out
- 38
- 97 more reduced
6 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting POWI on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 372 | $5.24B |
| Q1 2026 | 308 | $3.24B |
| Q4 2025 | 299 | $2.12B |
| Q3 2025 | 315 | $2.25B |
| Q2 2025 | 342 | $3.16B |
| Q1 2025 | 342 | $2.94B |
| Q4 2024 | 325 | $3.56B |
| Q3 2024 | 334 | $3.73B |
| Q2 2024 | 351 | $4.12B |
| Q1 2024 | 342 | $4.22B |
| Q4 2023 | 342 | $4.81B |
| Q3 2023 | 338 | $4.41B |
| Q2 2023 | 339 | $5.51B |
| Q1 2023 | 331 | $4.88B |
| Q4 2022 | 325 | $4.11B |
| Q3 2022 | 328 | $3.65B |
| Q2 2022 | 336 | $4.26B |
| Q1 2022 | 357 | $5.29B |
| Q4 2021 | 343 | $5.34B |
| Q3 2021 | 330 | $5.78B |
| Q2 2021 | 297 | $4.80B |
| Q1 2021 | 297 | $4.78B |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Power Integrations Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Snyder Capital Management L P | 2,104,063 | $107.7M | 2.09% | +39,356+1.9% | Added |
| William Blair Investment Management, LLC | 2,380,677 | $121.9M | 0.40% | +2,380,677 | New |
| Vanguard Capital Management LLC | 2,506,919 | $128.4M | 0.00% | +2,506,919 | New |
| State Street Corp | 3,077,843 | $157.6M | 0.01% | −323,127−9.5% | Reduced |
| Wellington Management Group LLP | 3,356,153 | $171.8M | 0.03% | +932,181+38.5% | Added |
| Neuberger Berman Group LLC | 3,933,099 | $201.4M | 0.15% | −39,958−1.0% | Reduced |
| Vanguard Portfolio Management LLC | 4,975,859 | $254.8M | 0.01% | +4,975,859 | New |
| BlackRock, Inc. | 8,521,749 | $436.3M | 0.01% | +10,445+0.1% | Added |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −206,100−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −106,559−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −87,212−100.0% | Sold out |
| Canada Pension Plan Investment Board | 0 | $0 | 0.00% | −85,500−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −82,782−100.0% | Sold out |
| Numerai GP LLC | 0 | $0 | 0.00% | −75,079−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −67,800−100.0% | Sold out |
| Panagora Asset Management Inc | 0 | $0 | 0.00% | −59,753−100.0% | Sold out |
| Capital Fund Management S.A. | 0 | $0 | 0.00% | −50,599−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −48,715−100.0% | Sold out |
| Arosa Capital Management LP | 0 | $0 | 0.00% | −40,000−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −30,174−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −24,215−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −23,140−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −22,500−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −20,257−100.0% | Sold out |
| Legato Capital Management LLC | 0 | $0 | 0.00% | −20,019−100.0% | Sold out |
| Mirabella Financial Services LLP | 0 | $0 | 0.00% | −18,156−100.0% | Sold out |
| DekaBank Deutsche Girozentrale | 0 | $0 | 0.00% | −8,622−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −11,948−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −11,217−100.0% | Sold out |
| Teacher Retirement System of Texas | 0 | $0 | 0.00% | −10,616−100.0% | Sold out |
| Oddo BHF Asset Management SAS | 0 | $0 | 0.00% | −9,414−100.0% | Sold out |
| Mackenzie Financial Corp | 0 | $0 | 0.00% | −7,127−100.0% | Sold out |
| Profund Advisors LLC | 0 | $0 | 0.00% | −6,776−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −3,709−100.0% | Sold out |
| Kestra Advisory Services, LLC | 0 | $0 | 0.00% | −1,009−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −763−100.0% | Sold out |
| GW&K Investment Management, LLC | 0 | $0 | 0.00% | −301−100.0% | Sold out |
| Close Asset Management Ltd | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| Luminist Capital LLC | 0 | $0 | 0.00% | −111−100.0% | Sold out |
| Assetmark, Inc | 0 | $0 | 0.00% | −62−100.0% | Sold out |
| CX Institutional | 0 | $0 | 0.00% | −17−100.0% | Sold out |
| Wealth Watch Advisors, INC | 0 | $0 | 0.00% | −26−100.0% | Sold out |
| Manchester Capital Management LLC | 0 | $0 | 0.00% | −17−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −16−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −9−100.0% | Sold out |
| Private Wealth Asset Management, LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| QSV Equity Investors LLC | – | – | – | – | Not filed |
| Comerica Bank | – | – | – | – | Not filed |
| CIBC Private Wealth Group, LLC | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |
| GPS Wealth Strategies Group, LLC | – | – | – | – | Not filed |