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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 8 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, Q2 2026

Institutional positions in Monolithic Power Systems, Inc. as of Jun 30, 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
1,250
+142 vs. Q1 2026
Shares held
47.6M
+386.8K (+0.8%) vs. Q1 2026
Total value
$65.6B
+$14.1B (+27.4%) vs. Q1 2026
New holders
220
419 more added
Sold out
78
464 more reduced

16 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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 holdersQ2 2026: 1,250 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 heldQ2 2026: $65.6B
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, Q2 2026

Shares, value and share of portfolio for each institution holding Monolithic Power Systems, Inc.; share changes are against Q1 2026.

Institutions holding MPWR in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Bouvel Investment Partners, LLC2,250$3.11M0.70%+33+1.5%Added
La Banque Postale Asset Management SA2,279$3.15M0.03%+1,703+295.7%Added
Brinker Capital Investments, LLC2,297$3.18M0.02%−123−5.1%Reduced
Crossmark Global Holdings, Inc.2,313$3.20M0.04%+244+11.8%Added
B. Metzler seel. Sohn & Co. AG2,334$3.23M0.03%+99+4.4%Added
Valley National Advisers Inc2,347$3.24M0.36%+35+1.5%Added
Commerzbank Aktiengesellschaft2,348$3.25M0.06%+4+0.2%Added
Northwestern Mutual Wealth Management Co2,361$3.26M0.00%−122−4.9%Reduced
Envestnet Portfolio Solutions, Inc.2,368$3.27M0.02%−619−20.7%Reduced
Fideuram - Intesa Sanpaolo Private Banking S.P.A.2,406$3.33M0.10%−585−19.6%Reduced
Intech Investment Management LLC2,422$3.35M0.03%+2,422New
New Mexico Educational Retirement Board2,500$3.46M0.09%+300+13.6%Added
Edmond de Rothschild Holding S.A.2,506$3.46M0.05%+1,069+74.4%Added
Verition Fund Management LLC2,511$3.47M0.02%+2,248+854.8%Added
Maryland State Retirement & Pension System2,544$3.52M0.06%+236+10.2%Added
Dai-Ichi Life Insurance Company, Ltd2,580$3.57M0.08%+839+48.2%Added
Allworth Financial LP2,586$3.58M0.02%−24−0.9%Reduced
Clear Street Group Inc.2,623$3.63M0.01%+2,623New
Groupe la Francaise2,692$3.72M0.05%−1,300−32.6%Reduced
Hartford Investment Management Co2,716$3.75M0.11%−58−2.1%Reduced
Polymer Capital Management (HK) LTD2,720$3.76M0.38%+510+23.1%Added
Ketron Financial2,722$3.76M1.17%+106+4.1%Added
Abn Amro Investment Solutions2,741$3.79M0.03%+467+20.5%Added
Stiles Financial Services Inc2,783$3.85M0.97%+14+0.5%Added
Burling Wealth Partners, LLC2,798$3.87M0.57%+633+29.2%Added
Sequoia Financial Advisors, LLC2,816$3.89M0.02%−43−1.5%Reduced
Pensionmark Financial Group, LLC3,576$3.92M0.06%00.0%Unchanged
M&T Bank Corp2,841$3.93M0.01%+35+1.2%Added
Silvercrest Asset Management Group LLC2,864$3.96M0.03%−6,983−70.9%Reduced
Kentucky Retirement Systems2,922$4.04M0.10%+2,922New
Thrive Capital Management, LLC2,928$4.05M0.76%−511−14.9%Reduced
Peak Retirement Planning, Inc.2,931$4.05M0.64%−231−7.3%Reduced
Snider Financial Group2,932$4.05M1.03%+2,932New
Captrust Financial Advisors2,948$4.08M0.01%+525+21.7%Added
4D Advisors, LLC3,000$4.15M1.59%−1,000−25.0%Reduced
SRS Capital Advisors, Inc.3,005$4.15M0.03%+1,954+185.9%Added
Equitable Holdings, Inc.3,025$4.18M0.02%−35−1.1%Reduced
D. E. Shaw & Co., Inc.3,035$4.20M0.00%+1,818+149.4%Added
E Fund Management Co., Ltd.3,046$4.21M0.09%+134+4.6%Added
GKV Capital Management Co., Inc.3,060$4.23M1.36%+120+4.1%Added
Advisors Asset Management, Inc.3,071$4.25M0.06%−70−2.2%Reduced
Allstate Corp3,091$4.27M0.04%−1,973−39.0%Reduced
Bridgewater Associates, LP3,096$4.28M0.02%−8,846−74.1%Reduced
PFG Advisors3,110$4.30M0.22%−234−7.0%Reduced
ABN AMRO Bank N.V.3,130$4.30M0.06%+200+6.8%Added
Rockefeller Capital Management L.P.3,117$4.31M0.01%+119+4.0%Added
Calamos Advisors LLC3,122$4.32M0.02%−1,246−28.5%Reduced
Harfst & Associates, Inc.3,124$4.32M0.67%−164−5.0%Reduced
Arrowstreet Capital, Limited Partnership3,130$4.33M0.00%+3,130New
Modern Wealth Management, LLC3,132$4.33M0.05%+27+0.9%Added
Metis Global Partners, LLC3,149$4.35M0.10%+957+43.7%Added
Wealth Enhancement Advisory Services, LLC13,517$4.36M0.01%+393+3.0%Added
Park Avenue Securities LLC3,155$4.36M0.03%−188−5.6%Reduced
Coldstream Capital Management Inc3,159$4.37M0.05%−183−5.5%Reduced
ExodusPoint Capital Management, LP3,198$4.42M0.04%+3,198New
Itau Unibanco Holding S.A.3,200$4.42M0.09%+3,200New
Saudi Central Bank3,266$4.51M0.06%+1,498+84.7%Added
Integrated Wealth Concepts LLC3,266$4.51M0.03%−420−11.4%Reduced
Leelyn Smith, LLC3,269$4.52M0.55%−76−2.3%Reduced
Intrust Bank NA3,289$4.55M0.34%−82−2.4%Reduced
Wiley Bros.-Aintree Capital, LLC3,344$4.63M0.02%−421−11.2%Reduced
Paragon Advisors, LLC3,367$4.65M0.98%+211+6.7%Added
BNP Paribas3,409$4.71M0.13%+3,409New
MV Capital Management, Inc.3,488$4.82M0.43%−79−2.2%Reduced
Argent Capital Management LLC3,507$4.85M0.15%−3,014−46.2%Reduced
Baker Avenue Asset Management, LP3,540$4.89M0.09%+325+10.1%Added
Laurion Capital Management LP3,579$4.95M0.36%+3,579New
Peapack Gladstone Financial Corp3,612$4.99M0.06%+789+27.9%Added
Gulf International Bank (UK) Ltd3,643$5.04M0.10%−71−1.9%Reduced
First American Trust, FSB3,643$5.04M0.30%−2,786−43.3%Reduced
Guardian Capital LP3,667$5.07M0.12%+52+1.4%Added
Triasima Portfolio Management inc.3,707$5.12M0.69%00.0%Unchanged
Torray LLC3,715$5.14M0.69%+8+0.2%Added
HighTower Advisors, LLC3,741$5.17M0.00%−31−0.8%Reduced
Genus Capital Management Inc.3,750$5.18M0.51%+3,750New
Trilogy Capital Inc.3,781$5.23M0.20%−722−16.0%Reduced
Merit Financial Group, LLC3,790$5.24M0.03%+692+22.3%Added
Teachers Retirement System of the State of Kentucky3,806$5.26M0.04%00.0%Unchanged
HB Wealth Management, LLC3,834$5.30M0.03%−561−12.8%Reduced
Mizuho Securities USA LLC3,846$5.32M0.09%+901+30.6%Added
Vinva Investment Management Ltd4,115$5.40M0.04%+3,795+1,185.9%Added
Generate Investment Management Ltd3,922$5.42M0.22%−6,718−63.1%Reduced
Twinbeech Capital LP3,934$5.44M0.98%+3,934New
Motley Fool Asset Management LLC3,957$5.47M0.21%+3,957New
Mitchell Capital Management Co3,961$5.48M0.83%−1,424−26.4%Reduced
SIH Partners, LLLP4,075$5.63M0.23%−4,841−54.3%Reduced
Summit Trail Advisors, LLC4,169$5.76M0.07%−156−3.6%Reduced
Oak Harvest Investment Services4,173$5.77M0.54%+620+17.5%Added
Lombard Odier Asset Management (Europe) Ltd4,181$5.78M0.25%−8,902−68.0%Reduced
MML Investors Services, LLC4,311$5.96M0.01%+147+3.5%Added
Rathbone Brothers plc4,325$5.98M0.02%−604−12.3%Reduced
Hennion & Walsh Asset Management, Inc.4,348$6.01M0.17%+434+11.1%Added
BI Asset Management Fondsmaeglerselskab A/S4,372$6.04M0.05%+37+0.9%Added
Sterling Capital Management LLC4,403$6.09M0.10%+918+26.3%Added
MUFG Securities EMEA plc4,411$6.10M0.06%+2,414+120.9%Added
Illinois Municipal Retirement Fund4,450$6.15M0.07%+1,022+29.8%Added
Concurrent Investment Advisors, LLC4,455$6.16M0.05%+3,211+258.1%Added
Azzad Asset Management Inc4,476$6.19M0.55%−189−4.1%Reduced
KP Management LLC4,500$6.22M1.30%00.0%Unchanged
Commonwealth Equity Services, LLC4,510$6.23M0.01%−26−0.6%Reduced