Power Integrations Inc (NASDAQ:POWI) showed up in the 13F filings of 289 institutional investors as of December 2025.
| Owner Name | Date | Shares Held | Change (QoQ) | Change (%) | Value (USD) |
|---|---|---|---|---|---|
| BlackRock, Inc. | 31 Mar, 2026 | 8,521,749 | 10,445 | 0.12% | $436,313,550.00 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 31 Mar, 2026 | 4,975,859 | 4,975,859 | 0.00% | $254,763,981.00 |
| Neuberger Berman Group LLC | 31 Mar, 2026 | 3,933,099 | -39,958 | -1.01% | $201,374,662.00 |
| WELLINGTON MANAGEMENT GROUP LLP | 31 Mar, 2026 | 3,356,153 | 932,181 | 38.46% | $171,835,034.00 |
| State Street Corp | 31 Mar, 2026 | 3,077,843 | -323,127 | -9.50% | $157,585,562.00 |
| VANGUARD CAPITAL MANAGEMENT LLC | 31 Mar, 2026 | 2,506,919 | 2,506,919 | 0.00% | $128,354,253.00 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 31 Mar, 2026 | 2,380,677 | 2,380,677 | 0.00% | $121,890,662.00 |
| SNYDER CAPITAL MANAGEMENT L P | 31 Mar, 2026 | 2,104,063 | 39,356 | 1.91% | $107,728,026.00 |
| DISCIPLINED GROWTH INVESTORS INC /MN | 31 Mar, 2026 | 1,959,172 | -42,526 | -2.12% | $100,309,606.00 |
| GEODE CAPITAL MANAGEMENT, LLC | 31 Mar, 2026 | 1,674,825 | 71,142 | 4.44% | $85,763,796.00 |
| Morgan Stanley | 31 Mar, 2026 | 1,501,960 | 22,405 | 1.51% | $76,900,427.00 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 31 Mar, 2026 | 1,396,483 | 1,396,483 | 0.00% | $71,501.00 |
| Copeland Capital Management, LLC | 31 Mar, 2026 | 1,321,789 | 147,882 | 12.60% | $67,675,608.00 |
| Jpmorgan Chase & Co | 31 Mar, 2026 | 1,293,375 | -366,268 | -22.07% | $61,926,796.00 |
| Capital International Investors | 31 Mar, 2026 | 1,112,390 | -151,979 | -12.02% | $56,954,368.00 |
| DIMENSIONAL FUND ADVISORS LP | 31 Mar, 2026 | 1,057,155 | 71,928 | 7.30% | $54,114,351.00 |
| Nuveen, LLC | 31 Mar, 2026 | 1,048,153 | 914,908 | 686.64% | $53,665,433.00 |
| Hudson Bay Capital Management LP | 31 Mar, 2026 | 1,000,000 | 1,000,000 | 0.00% | $51,200,000.00 |
| Westwood Holdings Group Inc | 31 Mar, 2026 | 873,035 | -164,482 | -15.85% | $44,699,392.00 |
| Robeco Schweiz AG | 31 Mar, 2026 | 870,170 | 242,696 | 38.68% | $44,552,704.00 |