Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in POWI held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 8.7M | $730.6M | +2.4% | 15.653% | 0.01% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 5.2M | $434.7M | +4.3% | 9.315% | 0.02% |
| 3 | WELLINGTON MANAGEMENT GROUP LLP | 3.6M | $301.2M | +7.1% | 6.453% | 0.05% |
| 4 | STATE STREET CORP | 3.2M | $267.5M | +3.8% | 5.732% | 0.00% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 2.5M | $210.3M | +0.2% | 4.507% | 0.00% |
| 6 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 2.4M | $199.5M | +0.1% | 4.275% | 0.60% |
| 7 | Neuberger Berman Group LLC | 2.0M | $169.2M | -48.6% | 3.626% | 0.06% |
| 8 | DISCIPLINED GROWTH INVESTORS INC /MN | 1.9M | $158.5M | -3.4% | 3.395% | 2.68% |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 1.8M | $151.0M | +7.7% | 3.236% | 0.01% |
| 10 | SNYDER CAPITAL MANAGEMENT L P | 1.8M | $148.0M | -16.0% | 3.170% | 2.56% |
| 11 | Robeco Schweiz AG | 1.3M | $112.3M | +54.0% | 2.406% | 1.80% |
| 12 | MORGAN STANLEY | 1.2M | $99.9M | -20.6% | 2.140% | 0.01% |
| 13 | Capital International Investors | 1.2M | $99.2M | +6.4% | 2.124% | 0.02% |
| 14 | DIMENSIONAL FUND ADVISORS LP | 1.1M | $90.9M | +2.6% | 1.947% | 0.02% |
| 15 | Nuveen, LLC | 1.0M | $85.4M | -2.7% | 1.831% | 0.02% |
| 16 | CONGRESS ASSET MANAGEMENT CO | 930K | $77.9M | β | 1.669% | 0.48% |
| 17 | Copeland Capital Management, LLC | 883K | $73.9M | -33.2% | 1.584% | 1.52% |
| 18 | Boston Trust Walden Corp | 882K | $73.9M | +52.8% | 1.584% | 0.56% |
| 19 | Invesco Ltd. | 870K | $72.9M | +210.1% | 1.562% | 0.01% |
| 20 | JPMORGAN CHASE & CO | 879K | $69.6M | -32.0% | 1.578% | 0.00% |
| 21 | AMERICAN CENTURY COMPANIES INC | 782K | $65.5M | +2842.2% | 1.403% | 0.03% |
| 22 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 768K | $64.3M | β | 1.378% | 0.02% |
| 23 | NORTHERN TRUST CORP | 764K | $64.0M | -9.2% | 1.372% | 0.01% |
| 24 | Stephens Investment Management Group LLC | 756K | $63.3M | +1.4% | 1.356% | 0.68% |
| 25 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 754K | $63.1M | -0.6% | 1.352% | 0.01% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in POWI β a direct measure of their conviction.
Filings activity in POWI during Q2 2026, grouped by how each filer changed its position.
Institutions that opened a new POWI position in Q2 2026
Institutions that fully closed their POWI position in Q2 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 374 | +21% | 113.81% | 0.82 pp | $5.10B | +62% |
| Q1 2026 | 308 | +3.4% | 114.63% | +4.64 pp | $3.15B | +51% |
| Q4 2025 | 298 | 1.7% | 109.99% | +8.47 pp | $2.09B | 5.8% |
| Q3 2025 | 303 | 11% | 101.52% | +2.11 pp | $2.21B | 28% |
| Q2 2025 | 339 | +0.6% | 99.41% | 2.40 pp | $3.07B | +9.3% |
| Q1 2025 | 337 | +5.0% | 101.81% | +0.40 pp | $2.81B | 17% |
| Q4 2024 | 321 | 1.2% | 101.41% | 1.15 pp | $3.37B | 2.4% |
| Q3 2024 | 325 | β | 102.56% | β | $3.46B | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying POWI stock.
Based on Q2 2026 13F filings, institutional ownership of Power Integrations, Inc. stands at 113.8%, held across 374 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of POWI, with approximately 8,722,053 shares worth $0.73B as of Q2 2026.
No marquee "smart money" managers (Berkshire, Burry, ARK, Tiger Global, Pershing Square, Baupost, etc.) currently appear among the top 25 institutional holders of POWI.
Our composite Smart Money Score for POWI is 44 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
93 institutions opened new positions in POWI during Q2 2026, while 30 fully exited. 244 added to existing positions and 26 trimmed.
POWI institutional ownership fell by 0.82 percentage points quarter-over-quarter, with a net change of +66 holders.
The top 10 institutions account for 54.3% of all reported 13F value in POWI, and the top 25 account for 77.4%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Power Integrations, Inc. (POWI) Institutional Ownership