Who owns Power Integrations, Inc.?
Institutional ownership of POWI from SEC Form 13F filings across 250 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
250
13F holders
$3.71B
value, 2026 filers
83.7%
of shares outstanding (46.7M sh)
67
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of POWI's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 8.7M | $730.6M | 0.0% | 15.7% | +2.4% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 5.2M | $434.7M | 0.0% | 9.3% | +4.3% |
| 3 | WELLINGTON MANAGEMENT GROUP LLP | 3.6M | $301.2M | 0.1% | 6.5% | +7.1% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 2.5M | $210.3M | 0.0% | 4.5% | -49.9% |
| 5 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 2.4M | $199.5M | 0.6% | 4.3% | +0.1% |
| 6 | NEUBERGER BERMAN GROUP LLC | 2.0M | $169.2M | 0.1% | 3.6% | -48.6% |
| 7 | PRICE T ROWE ASSOCIATES INC /MD/ | 1.9M | $161,234 | 0.0% | 3.5% | +37.8% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 1.8M | $151.0M | 0.0% | 3.2% | +7.7% |
| 9 | MORGAN STANLEY | 1.2M | $99.9M | 0.0% | 2.1% | -20.6% |
| 10 | Capital International Investors | 1.2M | $99.2M | 0.0% | 2.1% | +6.4% |
| 11 | Nuveen, LLC | 1.0M | $85.4M | 0.0% | 1.8% | -2.7% |
| 12 | JPMORGAN CHASE & CO | 879,254 | $69.6M | 0.0% | 1.6% | -32.0% |
| 13 | Invesco Ltd. | 870,396 | $72.9M | 0.0% | 1.6% | +210.1% |
| 14 | AMERICAN CENTURY COMPANIES INC | 781,675 | $65.5M | 0.0% | 1.4% | +2842.2% |
| 15 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/NEW | 767,672 | $64.3M | 0.0% | 1.4% | new |
| 16 | NORTHERN TRUST CORP | 764,474 | $64.0M | 0.0% | 1.4% | -9.2% |
| 17 | Sixth Street Partners Management Company, L.P.NEW | 753,514 | $63.1M | 10.9% | 1.4% | new |
| 18 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 753,514 | $63.1M | 0.0% | 1.4% | -0.6% |
| 19 | WESTWOOD HOLDINGS GROUP INC | 714,227 | $59.8M | 0.5% | 1.3% | -18.2% |
| 20 | BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 502,006 | $42.0M | 0.0% | 0.9% | -21.3% |
| 21 | BROWN ADVISORY INC | 477,227 | $40.0M | 0.1% | 0.9% | -30.5% |
| 22 | Bank of New York Mellon Corp | 466,513 | $39.1M | 0.0% | 0.8% | +2.5% |
| 23 | Connor, Clark & Lunn Investment Management Ltd. | 409,271 | $34.3M | 0.1% | 0.7% | +44.6% |
| 24 | VANGUARD FIDUCIARY TRUST CO | 400,845 | $33.6M | 0.0% | 0.7% | +4.1% |
| 25 | Public Sector Pension Investment Board | 382,900 | $32.1M | 0.1% | 0.7% | +92.8% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.