MONOLITHIC POWER SYSTEMS INC MPWR
$1,288
-3.3% 52w: $815.04 – $1,687
Latest 13F among current holders filed 5 days ago (Aug 28, 2026)
Price — last 12 months
research preview data815.041,2511,687
Aug 18, 2025 Jul 2, 2026
Institutional holders
1.1K
+61 QoQ
13F value
$51.56B
+14.8% QoQ
Smart-money holders
68
signal tier ≥ 2
New smart buyers
14
Q1 2026
Options barometer
0.7×
$269.8M calls / $383.5M puts
Institutional value by quarter
Number of holders
Who owns MPWR?
Q1 2026 filings| Fund | Type | Shares | Value | % of fund | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | Index provider | 6.1M | $6.64B | 0.1% | +1.8% |
| FMR LLC | Long only active | 4.4M | $4.81B | 0.3% | +10.7% |
| VANGUARD CAPITAL MANAGEMENT LLC | Diversified mechanical | 3.1M | $3.37B | — | — |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Diversified mechanical | 2.5M | $2.75B | — | — |
| Invesco Ltd. | Index provider | 2.5M | $2.75B | 0.3% | +0.2% |
| STATE STREET CORP | Index provider | 2.2M | $2.40B | 0.1% | +0.4% |
| GEODE CAPITAL MANAGEMENT, LLC | Index provider | 1.4M | $1.56B | — | +3.6% |
| PRICE T ROWE ASSOCIATES INC /MD/ | Diversified mechanical | 1.3M | $1.38B | 0.2% | -25.3% |
| FRANKLIN RESOURCES INC | Long only active | 928.7K | $1.02B | 0.3% | -11.5% |
| T. Rowe Price Investment Management, Inc. | Long only active | 721.6K | $789.0M | — | -39.9% |
| MORGAN STANLEY | Bank broker | 656.4K | $717.6M | 0.0% | +1.1% |
| FIRST TRUST ADVISORS LP | Index provider | 591.4K | $646.6M | 0.5% | -15.7% |
| GOLDMAN SACHS GROUP INC | Bank broker | 568.1K | $621.1M | 0.1% | -4.3% |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | Other | 567.8K | $620.7M | — | -0.5% |
| BARCLAYS PLC | Bank broker | 555.8K | $607.7M | 0.2% | -8.1% |
| UBS Group AG | Bank broker | 540.4K | $590.9M | 0.1% | +23.1% |
| VAN ECK ASSOCIATES CORP | Diversified mechanical | 524.6K | $573.5M | — | +4.4% |
| JPMORGAN CHASE & CO | Bank broker | 554.9K | $556.2M | 0.0% | +8.3% |
| NORTHERN TRUST CORP | Index provider | 489.1K | $534.8M | 0.1% | +1.1% |
| ROYAL BANK OF CANADA | Bank broker | 473.4K | $517.6M | 0.1% | +168.1% |
| VOYA INVESTMENT MANAGEMENT LLC | Diversified mechanical | 393.6K | $429.9M | 0.5% | +15.8% |
| BANK OF AMERICA CORP /DE/ | Bank broker | 382.2K | $417.8M | 0.0% | -30.5% |
| Legal & General Group Plc | Diversified mechanical | 380.1K | $415.6M | 0.1% | +6.6% |
| BROWN ADVISORY INC | Diversified mechanical | 379.9K | $415.4M | 0.7% | -24.1% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Index provider | 376.4K | $411.5M | — | +3.0% |
| CITIGROUP INC | Bank broker | 340.8K | $372.6M | 0.2% | +38.8% |
| Rafferty Asset Management, LLC | Index provider | 317.5K | $347.1M | — | -19.9% |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Bank broker | 302.2K | $330.4M | 0.1% | -5.2% |
| Bank of New York Mellon Corp | Diversified mechanical | 289.8K | $316.9M | 0.1% | -1.8% |
| VANGUARD FIDUCIARY TRUST CO | Diversified mechanical | 278.5K | $304.5M | — | — |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | Other | 266.7K | $291.6M | 0.9% | -9.3% |
| WELLINGTON MANAGEMENT GROUP LLP | Long only active | 250.5K | $273.9M | 0.1% | -34.9% |
| Anther Capital Ltd ★3 | Fundamental concentrated | 233.3K | $255.1M | — | — |
| BNP PARIBAS FINANCIAL MARKETS | Bank broker | 224.0K | $244.9M | 0.2% | -9.4% |
| AMERICAN CENTURY COMPANIES INC | Diversified mechanical | 199.7K | $218.3M | — | -1.9% |
| RAYMOND JAMES FINANCIAL INC | Bank broker | 196.1K | $205.4M | 0.1% | -7.3% |
| SG Americas Securities, LLC | Diversified mechanical | 181.8K | $198.7M | 0.2% | -30.7% |
| DEUTSCHE BANK AG\ | Bank broker | 181.7K | $198.7M | 0.1% | +4.2% |
| DekaBank Deutsche Girozentrale | Diversified mechanical | 190.4K | $194.1M | — | Held |
| PRINCIPAL FINANCIAL GROUP INC | Diversified mechanical | 174.2K | $190.5M | 0.1% | +4.1% |
| California Public Employees Retirement System | Pension sovereign | 159.7K | $174.6M | — | +88.2% |
| Amundi | Diversified mechanical | 158.9K | $173.7M | 0.0% | +22.7% |
| HSBC HOLDINGS PLC | Bank broker | 158.9K | $173.5M | 0.1% | -60.4% |
| Nuveen, LLC | Diversified mechanical | 155.9K | $170.4M | 0.0% | -3.3% |
| SEI INVESTMENTS CO | Diversified mechanical | 155.3K | $169.8M | 0.2% | -6.8% |
| FIL Ltd | Other | 154.6K | $169.1M | 0.1% | -51.1% |
| DIMENSIONAL FUND ADVISORS LP | Quant stat arb | 153.8K | $168.1M | — | +1.8% |
| EARNEST PARTNERS LLC | Other | 151.8K | $165.9M | — | -3.1% |
| Artisan Partners Limited Partnership | Other | 150.9K | $165.0M | — | -1.9% |
| NEUBERGER BERMAN GROUP LLC | Diversified mechanical | 150.1K | $164.1M | 0.1% | -17.4% |
Exits are not a bearish signal: our backtest shows stocks specialists exit keep outperforming for 3+ quarters — selling usually means profit-taking, not a forecast.
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