Monolithic Power Systems, Inc.
MPWR- Exchange
- Nasdaq
- Industry
- Semiconductors & Related Devices
- SEC CIK
- 0001280452
In the last 90 days, Monolithic Power Systems, Inc. insiders filed 0 open-market purchases and 9 sales; 1,250 institutions reported holding it in 13F filings for Q2 2026, worth $65.6B in total; superinvestors D1 Capital Partners and Maverick Capital hold it.
13F holders, Q4 2025
Institutional positions in Monolithic Power Systems, Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 1,061
- +98 vs. Q3 2025
- Shares held
- 48.8M
- +2.18M (+4.7%) vs. Q3 2025
- Total value
- $44.2B
- +$1.40B (+3.3%) vs. Q3 2025
- New holders
- 190
- 383 more added
- Sold out
- 92
- 353 more reduced
18 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MPWR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,250 | $65.6B |
| Q1 2026 | 1,124 | $51.6B |
| Q4 2025 | 1,061 | $44.2B |
| Q3 2025 | 981 | $43.0B |
| Q2 2025 | 907 | $34.6B |
| Q1 2025 | 862 | $27.0B |
| Q4 2024 | 864 | $27.6B |
| Q3 2024 | 885 | $42.8B |
| Q2 2024 | 838 | $38.6B |
| Q1 2024 | 807 | $31.2B |
| Q4 2023 | 737 | $28.6B |
| Q3 2023 | 655 | $21.2B |
| Q2 2023 | 652 | $25.2B |
| Q1 2023 | 669 | $23.3B |
| Q4 2022 | 611 | $16.5B |
| Q3 2022 | 630 | $16.6B |
| Q2 2022 | 625 | $16.8B |
| Q1 2022 | 611 | $21.3B |
| Q4 2021 | 627 | $21.5B |
| Q3 2021 | 579 | $21.1B |
| Q2 2021 | 533 | $16.1B |
| Q1 2021 | 530 | $15.1B |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Monolithic Power Systems, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Marquette Asset Management, LLC | 5 | $4.53K | 0.00% | 00.0% | Unchanged |
| Hoey Investments, Inc | 5 | $4.53K | 0.00% | 00.0% | Unchanged |
| Bruce G. Allen Investments, LLC | 5 | $4.53K | 0.00% | 00.0% | Unchanged |
| DiNuzzo Private Wealth, Inc. | 5 | $4.53K | 0.00% | 00.0% | Unchanged |
| Nemes Rush Group LLC | 5 | $4.53K | 0.00% | +5 | New |
| United Community Bank | 5 | $4.53K | 0.00% | +5 | New |
| Rossby Financial, LCC | 5 | $4.53K | 0.00% | +5 | New |
| Cornerstone Financial Management LLC | 5 | $4.53K | 0.00% | +5 | New |
| Advocate Investing Services LLC | 5 | $4.53K | 0.00% | +5 | New |
| Bayban | 5 | $4.53K | 0.00% | +5 | New |
| Bravera Wealth | 5 | $4.53K | 0.00% | +5 | New |
| ORG Partners LLC | 5 | $4.53K | 0.00% | −2−28.6% | Reduced |
| Abound Wealth Management | 5 | $4.18K | 0.00% | 00.0% | Unchanged |
| Kozak & Associates, Inc. | 4 | $3.89K | 0.00% | 00.0% | Unchanged |
| Jessup Wealth Management, Inc | 4 | $3.63K | 0.00% | +4 | New |
| JNBA Financial Advisors | 4 | $3.63K | 0.00% | +4 | New |
| NBC Securities, Inc. | 4 | $3.63K | 0.00% | −1−20.0% | Reduced |
| State of Wyoming | 4 | $3.63K | 0.00% | 00.0% | Unchanged |
| Turning Point Benefit Group, Inc. | 4 | $3.63K | 0.00% | +3+300.0% | Added |
| Networth Advisors, LLC | 4 | $3.63K | 0.00% | +4 | New |
| Capital Advisors, Ltd. LLC | 3 | $3.00K | 0.00% | 00.0% | Unchanged |
| Optima Capital LLC | 3 | $2.72K | 0.00% | +3 | New |
| Bay Harbor Wealth Management, LLC | 3 | $2.72K | 0.00% | +1+50.0% | Added |
| Albion Financial Group | 3 | $2.72K | 0.00% | 00.0% | Unchanged |
| Rialto Wealth Management, LLC | 3 | $2.72K | 0.00% | 00.0% | Unchanged |
| HM Payson & Co | 3 | $2.72K | 0.00% | +3 | New |
| Clayton Financial Group LLC | 3 | $2.72K | 0.00% | +3 | New |
| Creative Financial Designs Inc | 3 | $2.72K | 0.00% | 00.0% | Unchanged |
| Grove Bank & Trust | 3 | $2.72K | 0.00% | 00.0% | Unchanged |
| Crews Bank & Trust | 3 | $2.72K | 0.00% | 00.0% | Unchanged |
| Mountain Hill Investment Partners Corp. | 3 | $2.72K | 0.00% | 00.0% | Unchanged |
| Bare Financial Services, Inc | 3 | $2.72K | 0.00% | +1+50.0% | Added |
| Raffa Wealth Management, LLC | 3 | $2.72K | 0.00% | +1+50.0% | Added |
| PEAK6 LLC | 3 | $2.38K | 0.00% | +2+200.0% | Added |
| Brown, Lisle/Cummings, Inc. | 3 | $2.36K | 0.00% | 00.0% | Unchanged |
| Country Trust Bank | 2 | $1.81K | 0.00% | −24−92.3% | Reduced |
| Retirement Wealth Solutions LLC | 2 | $1.81K | 0.00% | 00.0% | Unchanged |
| Princeton Global Asset Management LLC | 2 | $1.81K | 0.00% | 00.0% | Unchanged |
| Aspect Partners, LLC | 2 | $1.81K | 0.00% | 00.0% | Unchanged |
| HFM Investment Advisors, LLC | 2 | $1.81K | 0.00% | +1+100.0% | Added |
| Colonial Trust Co | 2 | $1.58K | 0.00% | 00.0% | Unchanged |
| IMA Wealth, Inc. | 1 | $907 | 0.00% | 00.0% | Unchanged |
| Quaker Wealth Management, LLC | 1 | $907 | 0.00% | 00.0% | Unchanged |
| TFC Financial Management | 1 | $907 | 0.00% | 00.0% | Unchanged |
| Breakwater Investment Management | 1 | $907 | 0.00% | 00.0% | Unchanged |
| DecisionPoint Financial, LLC | 1 | $907 | 0.00% | 00.0% | Unchanged |
| Legacy Bridge, LLC | 1 | $907 | 0.00% | +1 | New |
| Seneschal Advisors, LLC | 1 | $907 | 0.00% | +1 | New |
| Eastern Bank | 1 | $906 | 0.00% | −10−90.9% | Reduced |
| WestEnd Advisors, LLC | 1 | $906 | 0.00% | 00.0% | Unchanged |
| Tompkins Financial Corp | 1 | $906 | 0.00% | +1 | New |
| Trust Co | 1 | $906 | 0.00% | +1 | New |
| High Note Wealth, LLC | 1 | $906 | 0.00% | +1 | New |
| Davis Capital Management | 1 | $906 | 0.00% | +1 | New |
| Atlantic Private Wealth, LLC | 1 | $906 | 0.00% | +1 | New |
| Wealth Enhancement Trust Services, Inc. | 1 | $906 | 0.00% | +1 | New |
| Pinpoint Asset Management (Singapore) Pte. Ltd. | 1 | $906 | 0.00% | +1 | New |
| 1015 Capital Partners, LLC | 1 | $906 | 0.00% | +1 | New |
| Beaird Harris Wealth Management, LLC | 1 | $562 | 0.00% | −2−66.7% | Reduced |
| Ogorek Anthony Joseph | 1 | $0 | 0.00% | +1 | New |
| Navigoe, LLC | 1 | $0 | 0.00% | 00.0% | Unchanged |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −132,145−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −65,877−100.0% | Sold out |
| Holocene Advisors, LP | 0 | $0 | 0.00% | −51,171−100.0% | Sold out |
| Achmea Investment Management B.V. | 0 | $0 | 0.00% | −12,808−100.0% | Sold out |
| IFM Investors Pty Ltd | 0 | $0 | 0.00% | −9,175−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −8,086−100.0% | Sold out |
| Empowered Funds, LLC | 0 | $0 | 0.00% | −7,936−100.0% | Sold out |
| Concentric Capital Strategies, LP | 0 | $0 | 0.00% | −5,559−100.0% | Sold out |
| Quantessence Capital LLC | 0 | $0 | 0.00% | −4,344−100.0% | Sold out |
| Rational Advisors LLC | 0 | $0 | 0.00% | −3,900−100.0% | Sold out |
| Motley Fool Asset Management LLC | 0 | $0 | 0.00% | −3,757−100.0% | Sold out |
| Hudson Bay Capital Management LP | 0 | $0 | 0.00% | −3,338−100.0% | Sold out |
| Catalyst Funds Management Pty Ltd | 0 | $0 | 0.00% | −3,175−100.0% | Sold out |
| Intech Investment Management LLC | 0 | $0 | 0.00% | −2,336−100.0% | Sold out |
| Boston Partners | 0 | $0 | 0.00% | −2,251−100.0% | Sold out |
| Ossiam | 0 | $0 | 0.00% | −2,250−100.0% | Sold out |
| Perpetual Ltd | 0 | $0 | 0.00% | −1,967−100.0% | Sold out |
| Integrated Wealth Concepts LLC | 0 | $0 | 0.00% | −1,905−100.0% | Sold out |
| Kovitz Investment Group Partners, LLC | 0 | $0 | 0.00% | −1,636−100.0% | Sold out |
| APG Asset Management US Inc. | 0 | $0 | 0.00% | −1,473−100.0% | Sold out |
| Novem Group | 0 | $0 | 0.00% | −1,357−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −1,271−100.0% | Sold out |
| Catalytic Wealth RIA, LLC | 0 | $0 | 0.00% | −1,223−100.0% | Sold out |
| Win Advisors, Inc | 0 | $0 | 0.00% | −1,144−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −1,100−100.0% | Sold out |
| K.J. Harrison & Partners Inc | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| CTC Alternative Strategies, Ltd. | 0 | $0 | 0.00% | −974−100.0% | Sold out |
| TownSquare Capital, LLC | 0 | $0 | 0.00% | −938−100.0% | Sold out |
| Cidel Asset Management Inc | 0 | $0 | 0.00% | −935−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −895−100.0% | Sold out |
| NorthRock Partners, LLC | 0 | $0 | 0.00% | −882−100.0% | Sold out |
| Burns Matteson Capital Management, LLC | 0 | $0 | 0.00% | −722−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −710−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −700−100.0% | Sold out |
| SummitTX Capital, L.P. | 0 | $0 | 0.00% | −700−100.0% | Sold out |
| Summit Wealth Group LLC | 0 | $0 | 0.00% | −1,366−100.0% | Sold out |
| Voleon Capital Management LP | 0 | $0 | 0.00% | −682−100.0% | Sold out |
| Pitcairn Co | 0 | $0 | 0.00% | −670−100.0% | Sold out |
| Cynosure Management, LLC | 0 | $0 | 0.00% | −664−100.0% | Sold out |