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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, Q1 2026

Institutional positions in Monolithic Power Systems, Inc. as of Mar 31, 2026. 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
1,124
+80 vs. Q4 2025
Shares held
47.3M
+5.32M (+12.7%) vs. Q4 2025
Total value
$51.6B
+$13.6B (+35.9%) vs. Q4 2025
New holders
181
384 more added
Sold out
101
408 more reduced

17 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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.

Institutional holdersQ1 2026: 1,124 institutions
Q1 2021: 530 institutionsQ2 2021: 533 institutionsQ3 2021: 579 institutionsQ4 2021: 627 institutionsQ1 2022: 611 institutionsQ2 2022: 625 institutionsQ3 2022: 630 institutionsQ4 2022: 611 institutionsQ1 2023: 669 institutionsQ2 2023: 652 institutionsQ3 2023: 655 institutionsQ4 2023: 737 institutionsQ1 2024: 807 institutionsQ2 2024: 838 institutionsQ3 2024: 885 institutionsQ4 2024: 864 institutionsQ1 2025: 862 institutionsQ2 2025: 907 institutionsQ3 2025: 981 institutionsQ4 2025: 1,061 institutionsQ1 2026: 1,124 institutionsQ2 2026: 1,250 institutions
Value heldQ1 2026: $51.6B
Q1 2021: $15.1BQ2 2021: $16.1BQ3 2021: $21.1BQ4 2021: $21.5BQ1 2022: $21.3BQ2 2022: $16.8BQ3 2022: $16.6BQ4 2022: $16.5BQ1 2023: $23.3BQ2 2023: $25.2BQ3 2023: $21.2BQ4 2023: $28.6BQ1 2024: $31.2BQ2 2024: $38.6BQ3 2024: $42.8BQ4 2024: $27.6BQ1 2025: $27.0BQ2 2025: $34.6BQ3 2025: $43.0BQ4 2025: $44.2BQ1 2026: $51.6BQ2 2026: $65.6B
Institutions holding MPWR and their total value by quarter
QuarterHoldersValue
Q2 20261,250$65.6B
Q1 20261,124$51.6B
Q4 20251,061$44.2B
Q3 2025981$43.0B
Q2 2025907$34.6B
Q1 2025862$27.0B
Q4 2024864$27.6B
Q3 2024885$42.8B
Q2 2024838$38.6B
Q1 2024807$31.2B
Q4 2023737$28.6B
Q3 2023655$21.2B
Q2 2023652$25.2B
Q1 2023669$23.3B
Q4 2022611$16.5B
Q3 2022630$16.6B
Q2 2022625$16.8B
Q1 2022611$21.3B
Q4 2021627$21.5B
Q3 2021579$21.1B
Q2 2021533$16.1B
Q1 2021530$15.1B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Monolithic Power Systems, Inc.; share changes are against Q4 2025.

Institutions holding MPWR in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Sequoia Financial Advisors, LLC2,859$3.13M0.02%+171+6.4%Added
Peapack Gladstone Financial Corp2,823$3.09M0.04%+4+0.1%Added
M&T Bank Corp2,806$3.07M0.01%+54+2.0%Added
Hartford Investment Management Co2,774$3.03M0.10%+8+0.3%Added
Stiles Financial Services Inc2,769$3.03M0.93%−8−0.3%Reduced
Investors Towarzystwo Funduszy Inwestycyjnych Spolka Akcyjna2,723$2.98M1.23%−735−21.3%Reduced
First National Advisers, LLC2,695$2.95M0.43%−396−12.8%Reduced
Prudential PLC2,681$2.93M0.02%+464+20.9%Added
Fideuram Asset Management (Ireland) dac2,826$2.93M0.37%−1,569−35.7%Reduced
Ketron Financial2,616$2.86M1.02%00.0%Unchanged
Allworth Financial LP2,610$2.85M0.01%+2,295+728.6%Added
Deeter Investments LLP2,500$2.73M0.48%+2,500New
Northwestern Mutual Wealth Management Co2,483$2.71M0.00%+178+7.7%Added
Diversify Wealth Management, LLC1,761$2.69M0.05%+1,761New
Prevail Innovative Wealth Advisors, LLC2,445$2.67M0.45%+2,445New
Westerkirk Capital Inc.2,424$2.65M0.29%−120−4.7%Reduced
Captrust Financial Advisors2,423$2.65M0.00%+1,171+93.5%Added
Brinker Capital Investments, LLC2,420$2.65M0.02%−387−13.8%Reduced
Commerzbank Aktiengesellschaft2,344$2.56M0.05%+2,014+610.3%Added
Harbour Trust & Investment Management Co2,338$2.56M0.27%+2,338New
Valley National Advisers Inc2,312$2.53M0.33%+11+0.5%Added
Maryland State Retirement & Pension System2,308$2.52M0.05%00.0%Unchanged
Holocene Advisors, LP2,303$2.52M0.01%+2,303New
Raiffeisen Bank International AG2,510$2.52M0.04%−77,315−96.9%Reduced
Abn Amro Investment Solutions2,274$2.49M0.03%+43+1.9%Added
Morningstar Investment Management LLC2,252$2.46M0.15%+1,744+343.3%Added
Patton Fund Management, Inc.2,240$2.45M0.42%−3,789−62.8%Reduced
AG2R la Mondiale Gestion D'Actifs2,237$2.45M0.11%+178+8.6%Added
B. Metzler seel. Sohn & Co. AG2,235$2.44M0.02%−213−8.7%Reduced
Ameritas Investment Partners, Inc.2,233$2.44M0.08%+38+1.7%Added
Bouvel Investment Partners, LLC2,217$2.42M0.70%+71+3.3%Added
Catalyst Capital Advisors LLC2,215$2.42M0.05%+415+23.1%Added
Banque Cantonale Vaudoise2,213$2.42M0.09%+441+24.9%Added
Lombard Odier Asset Management (Switzerland) SA2,213$2.42M0.09%+2,213New
Polymer Capital Management (HK) LTD2,210$2.42M0.34%−1,012−31.4%Reduced
New Mexico Educational Retirement Board2,200$2.40M0.07%00.0%Unchanged
Metis Global Partners, LLC2,192$2.40M0.06%−256−10.5%Reduced
Burling Wealth Partners, LLC2,165$2.37M0.38%+2,165New
CAPROCK Group, Inc.2,159$2.37M0.06%−78−3.5%Reduced
Sunpointe, LLC2,164$2.37M0.78%−423−16.4%Reduced
Guidance Capital, Inc1,481$2.35M0.53%−1,378−48.2%Reduced
Redhawk Wealth Advisors, Inc.2,135$2.33M0.26%−1,465−40.7%Reduced
Camden Capital, LLC2,102$2.30M0.15%+628+42.6%Added
Crossmark Global Holdings, Inc.2,069$2.26M0.03%+346+20.1%Added
Hancock Whitney Corp1,407$2.23M0.04%+642+83.9%Added
GAMMA Investing LLC2,019$2.21M0.10%+50+2.5%Added
Connor, Clark & Lunn Investment Management Ltd.2,016$2.20M0.01%+2,016New
MUFG Securities EMEA plc1,997$2.18M0.03%−72,969−97.3%Reduced
CWM, LLC1,970$2.15M0.01%+10+0.5%Added
Atria Investments LLC1,967$2.15M0.02%−749−27.6%Reduced
IHT Wealth Management, LLC1,935$2.12M0.05%+1,935New
Roundview Capital LLC1,933$2.11M0.13%+1,933New
VestGen Advisors, LLC1,318$2.11M0.06%+435+49.3%Added
Tokio Marine Asset Management Co Ltd1,927$2.11M0.08%+30+1.6%Added
Confluence Wealth Services, Inc.1,897$2.07M0.08%−18−0.9%Reduced
Cim, LLC1,871$2.05M0.30%−68−3.5%Reduced
Woodline Partners LP1,869$2.04M0.01%−771−29.2%Reduced
Oppenheimer Asset Management Inc.1,856$2.03M0.02%−28−1.5%Reduced
Taylor Frigon Capital Management LLC1,855$2.03M1.15%−2,241−54.7%Reduced
Jacobs Levy Equity Management, Inc1,839$2.01M0.01%+1,279+228.4%Added
BLI - Banque de Luxembourg Investments2,200$2.00M0.06%00.0%Unchanged
Mirova1,808$1.98M0.08%−238−11.6%Reduced
Linden Thomas Advisory Services, LLC1,798$1.97M0.19%−2,435−57.5%Reduced
Saudi Central Bank1,768$1.93M0.04%+1,768New
Change Path, LLC1,760$1.92M0.04%−312−15.1%Reduced
Callan Family Office, LLC1,759$1.92M0.04%−353−16.7%Reduced
J. Safra Sarasin Holding AG1,755$1.92M0.03%+333+23.4%Added
Groupama Asset Managment1,742$1.90M0.03%+84+5.1%Added
Dai-Ichi Life Insurance Company, Ltd1,741$1.90M0.05%+116+7.1%Added
Virtus Investment Advisers, Inc.1,731$1.89M0.52%−24−1.4%Reduced
Keybank National Association1,713$1.87M0.01%−58−3.3%Reduced
Everence Capital Management Inc1,690$1.85M0.11%00.0%Unchanged
Vestcor Inc1,689$1.85M0.05%+341+25.3%Added
Assenagon Asset Management S.A.1,651$1.81M0.00%+89+5.7%Added
GLOBALT Investments LLC1,650$1.80M0.06%−15−0.9%Reduced
Norden Group LLC1,649$1.80M0.17%+183+12.5%Added
ING Groep NV1,648$1.80M0.01%+571+53.0%Added
E. Ohman J:or Asset Management AB1,647$1.80M0.05%00.0%Unchanged
Worthington Financial Partners, LLC1,640$1.79M1.54%−262−13.8%Reduced
Greenland Capital Management LP1,635$1.79M0.36%−2,104−56.3%Reduced
Icon Wealth Advisors, LLC1,148$1.75M0.11%−523−31.3%Reduced
Sirios Capital Management L P1,578$1.73M0.21%−886−36.0%Reduced
Jacksonville Wealth Management, LLC1,569$1.72M1.16%−5−0.3%Reduced
Northwestern Mutual Investment Management Company, LLC1,558$1.70M0.03%+27+1.8%Added
Westover Capital Advisors, LLC1,558$1.70M0.31%+153+10.9%Added
Acadian Asset Management LLC1,545$1.69M0.00%+934+152.9%Added
Winton Group Ltd1,541$1.68M0.06%+93+6.4%Added
FCG Investment Co1,537$1.68M0.74%+1,537New
Bridgeway Capital Management, LLC1,530$1.67M0.03%00.0%Unchanged
Grantham, Mayo, Van Otterloo & Co. LLC1,518$1.66M0.00%+31+2.1%Added
Horizon Investments, LLC1,516$1.66M0.02%−50−3.2%Reduced
PKO Investment Management Joint-Stock Co1,500$1.64M0.14%00.0%Unchanged
Forty-three Eighteen Advisors, LLC1,499$1.64M1.23%+66+4.6%Added
China Universal Asset Management Co., Ltd.1,482$1.62M0.12%+126+9.3%Added
United Capital Financial Advisers, LLC1,483$1.62M0.01%−1,008−40.5%Reduced
Clough Capital Partners L P1,457$1.59M0.15%+1,457New
Meeder Advisory Services, Inc.1,447$1.58M0.07%+165+12.9%Added
Warren Averett Asset Management, LLC1,445$1.58M0.01%−7−0.5%Reduced
FourThought Financial Partners, LLC1,440$1.57M0.14%−27−1.8%Reduced
Edmond de Rothschild Holding S.A.1,437$1.57M0.02%+1,437New