Who Owns MPWR?
Monolithic Power Systems, Inc. — Institutional Ownership & 13F Holdings
$1508.96
-78.61 (-4.95%)
Market Cap
$73.2B
Shares Outstanding
49,118,000
Institutional Holders
837
Total Inst. Value
$58.6B
% of Float Held
99.9%
QoQ Holder Change
+252
Institutional data as of Q1 2025
New Positions
192
Closed Positions
110
Increased
294
Decreased
275
Institutional Ownership Trend
Top 10 Institutional Holders(Q1 2025)
| # | Fund | Value | Shares |
|---|---|---|---|
| 1 | CANADA PENSION PLAN INVESTMENT BOARD | $33.3B | 57,342 |
| 2 | VANGUARD GROUP INC | $3.4B | 5,920,669 |
| 3 | BlackRock, Inc. | $2.8B | 4,912,908 |
| 4 | FMR LLC | $2.0B | 3,498,709 |
| 5 | STATE STREET CORP | $1.2B | 2,115,705 |
| 6 | PRICE T ROWE ASSOCIATES INC /MD/ | $1.2B | 2,034,731 |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $814.4M | 1,406,036 |
| 8 | FRANKLIN RESOURCES INC | $779.4M | 1,343,830 |
| 9 | Invesco Ltd. | $724.6M | 1,249,335 |
| 10 | NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | $624.0M | 1,076 |
Biggest Buyers & Sellers This Quarter
Top Buyers
| Fund | Shares Added | Value |
|---|---|---|
| VANGUARD GROUP INC | +96K | $3.4B |
| FMR LLC | +381K | $2.0B |
| PRICE T ROWE ASSOCIATES INC /MD/ | +506K | $1.2B |
| GEODE CAPITAL MANAGEMENT, LLC | +41K | $814.4M |
| Invesco Ltd. | +87K | $724.6M |
Top Sellers
| Fund | Shares Removed | Value |
|---|---|---|
| BlackRock, Inc. | -509K | $2.8B |
| Siemens Fonds Invest GmbH | -200K | $393K |
| BANK OF NOVA SCOTIA | -136K | $15.2M |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | -131K | $148.5M |
| CITADEL ADVISORS LLC | -130K | $449K |
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Frequently Asked Questions
How many institutional investors hold MPWR?
As of Q1 2025, 837 institutional investors report holding MPWR (Monolithic Power Systems, Inc.) in their 13F filings.
What percentage of Monolithic Power Systems, Inc. is owned by institutions?
Institutional investors hold approximately 99.9% of Monolithic Power Systems, Inc.'s float as reported in SEC 13F filings.
Which hedge fund owns the most MPWR?
The largest institutional holder of MPWR is CANADA PENSION PLAN INVESTMENT BOARD with $33.3B in shares.
Are institutions buying or selling MPWR?
This quarter, 192 institutions opened new positions in MPWR and 110 closed their positions.
What is 13F institutional ownership?
SEC Form 13F is a quarterly report filed by institutional investment managers with over $100M in qualifying assets. It discloses their US equity holdings, providing transparency into what the largest investors are buying and selling.
How often is institutional ownership data updated?
13F filings are due 45 days after each calendar quarter end (May 15, Aug 14, Nov 14, Feb 14). Data is updated on HedgeTrace as new filings are processed.