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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.

Q1 2026 vs. Q4 2025

How the institutions holding Monolithic Power Systems, Inc. changed between Q4 2025 and Q1 2026.

All holders in Q1 2026All holders in Q4 2025

13F holders of MPWR: Q4 2025 compared with Q1 2026
MeasureQ4 2025Of which not filed for Q1 2026Q1 2026Change
Holders1,061171,124+80
Shares48.8M6.89M47.3M+5.32M (+12.7%)
Value$44.2B$6.25B$51.6B+$13.6B (+35.9%)

17 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (181)

Institutions that held Monolithic Power Systems, Inc. at the end of Q1 2026 but not at the end of Q4 2025.

Showing the largest 100 of 181 by value.

Institutions new to MPWR in Q1 2026
InstitutionSharesValue% of portfolio
Vanguard Capital Management LLC3,083,449$3.37B0.08%
Vanguard Portfolio Management LLC2,516,492$2.75B0.14%
Vanguard Fiduciary Trust Co278,499$304.5M0.08%
Anther Capital Ltd233,288$255.1M6.67%
Vanguard Global Advisers, LLC106,602$116.6M0.06%
Vanguard Asset Management, Ltd81,837$89.5M0.08%
CIBC Bancorp USA Inc.68,819$75.2M0.10%
Empowered Funds, LLC34,093$37.3M0.24%
SEB Asset Management AB27,291$29.8M0.13%
Vanguard Investments Australia, Ltd.23,915$26.1M0.08%
Zurich Insurance Group Ltd20,198$22.1M0.17%
Ceredex Value Advisors LLC17,275$18.9M0.59%
Erste Asset Management GmbH14,612$15.0M0.14%
Two Sigma Investments, LP12,018$13.1M0.01%
AustralianSuper Pty Ltd11,496$12.6M0.07%
IFM Investors Pty Ltd9,569$10.5M0.09%
SIH Partners, LLLP8,916$9.75M0.30%
Marshall Wace, LLP6,732$7.36M0.01%
Aware Super Pty Ltd as trustee of Aware Super5,996$6.56M0.10%
Ilmarinen Mutual Pension Insurance Co5,345$5.84M0.05%
Y-Intercept (Hong Kong) Ltd4,629$5.06M0.10%
Arosa Capital Management LP4,500$4.92M3.20%
Capitolis Liquid Global Markets LLC4,391$4.80M0.03%
Indivisible Partners4,378$4.79M0.42%
Connective Capital Management, LLC4,105$4.49M3.71%
Integrated Wealth Concepts LLC3,686$4.03M0.03%
Illinois Municipal Retirement Fund3,428$3.75M0.05%
IMC-Chicago, LLC3,131$3.42M0.05%
Havemeyer Place LP2,953$3.23M0.37%
ABN AMRO Bank N.V.2,930$3.19M0.03%
E Fund Management Co., Ltd.2,912$3.18M0.09%
Deeter Investments LLP2,500$2.73M0.48%
Diversify Wealth Management, LLC1,761$2.69M0.05%
Prevail Innovative Wealth Advisors, LLC2,445$2.67M0.45%
Harbour Trust & Investment Management Co2,338$2.56M0.27%
Holocene Advisors, LP2,303$2.52M0.01%
Lombard Odier Asset Management (Switzerland) SA2,213$2.42M0.09%
Burling Wealth Partners, LLC2,165$2.37M0.38%
Connor, Clark & Lunn Investment Management Ltd.2,016$2.20M0.01%
IHT Wealth Management, LLC1,935$2.12M0.05%
Roundview Capital LLC1,933$2.11M0.13%
Saudi Central Bank1,768$1.93M0.04%
FCG Investment Co1,537$1.68M0.74%
Clough Capital Partners L P1,457$1.59M0.15%
Edmond de Rothschild Holding S.A.1,437$1.57M0.02%
Voleon Capital Management LP1,430$1.56M0.03%
Bellwether Advisors, LLC1,425$1.56M0.26%
Arista Wealth Management, LLC1,298$1.42M0.17%
U.S. Capital Wealth Advisors, LLC1,207$1.32M0.03%
Simmons Bank1,166$1.27M0.09%
Nicolet Bankshares Inc1,089$1.22M0.04%
Ninepoint Partners LP1,099$1.20M0.14%
Axecap Investments, LLC1,027$1.12M0.77%
Lighthouse Investment Partners, LLC838$916.2K0.03%
Venturi Wealth Management, LLC833$910.8K0.04%
BDFS Capital LLC825$902.1K0.43%
Belpointe Asset Management LLC820$896.5K0.03%
Fortis Capital Advisors, LLC820$896.5K0.12%
Gaddis Premier Wealth Advisors LLC742$811.3K0.60%
Generali Asset Management SPA SGR692$756.6K0.02%
Brighton Jones LLC623$681.2K0.02%
TrueMark Investments, LLC611$668.0K0.13%
Talon Private Wealth, LLC585$639.6K0.08%
Cambria Investment Management, L.P.552$603.5K0.03%
1248 Management, LLC548$600.3K0.28%
Brandywine Managers, LLC542$592.6K0.35%
Blue Bell Private Wealth Management, LLC523$571.8K0.08%
Capula Management Ltd502$548.9K0.00%
Wellington Grp LLC481$525.9K0.16%
Silverleafe Capital Partners, LLC451$493.1K0.15%
Sigma Planning Corp414$452.9K0.01%
GLR Partners, LLC410$448.3K0.24%
Elevate Capital Advisors, LLC397$434.1K0.28%
Western Financial Corp385$420.9K0.16%
Bauman Advisory Group, LLC377$412.2K0.29%
Mizuho Markets Americas LLC355$388.1K0.01%
First Affirmative Financial Network346$378.8K0.15%
Clearwave Capital, LLC342$373.9K0.26%
Brevan Howard Capital Management LP341$372.8K0.00%
Wealthcare Advisory Partners LLC338$369.6K0.01%
Ausdal Financial Partners, Inc.337$368.1K0.02%
Supplemental Annuity Collective Trust of NJ324$354.2K0.10%
Aigen Investment Management, LP320$349.9K0.09%
Cornerstone Wealth Group, LLC213$325.8K0.02%
Vinva Investment Management Ltd320$320.7K0.00%
Millington Securities, LLC293$320.7K0.09%
Board of the Pension Protection Fund280$306.1K0.28%
Concentric Capital Strategies, LP274$299.6K0.03%
Premier Path Wealth Partners, LLC274$299.6K0.04%
Tuttle Tactical Management272$297.4K0.49%
Koshinski Asset Management, Inc.272$297.2K0.02%
Gallacher Capital Management LLC265$289.7K0.11%
Angeles Wealth Management, LLC258$282.6K0.02%
Nilsine Partners, LLC177$281.0K0.02%
Maridea Wealth Management LLC248$270.9K0.04%
TABR Capital Management, LLC246$269.0K0.25%
Fidelis Capital Partners, LLC236$258.0K0.02%
New Wave Wealth Advisors LLC230$251.9K0.09%
Gardner Lewis Asset Management L P229$250.4K0.05%
Ascent Group, LLC228$249.3K0.01%

Sold out (101)

Institutions that held Monolithic Power Systems, Inc. at the end of Q4 2025 and filed for Q1 2026 without it.

Showing the largest 100 of 101 by value.

Institutions that sold out of MPWR in Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Analog Century Management LP70,723$64.1M
Meridiem Capital Partners LP42,723$38.7M
Millennium Management LLC24,679$22.4M
Alyeska Investment Group, L.P.21,578$19.6M
Skandinaviska Enskilda Banken AB (publ)18,613$16.9M
Moore Capital Management, LP17,080$15.5M
FNY Investment Advisers, LLC10,500$9.52M
Coppell Advisory Solutions LLC4,397$4.06M
Jump Financial, LLC4,445$4.03M
GTS Securities LLC3,848$3.49M
Mirabaud Asset Management Ltd4,881$3.41M
Neo Ivy Capital Management3,515$3.19M
Kentucky Retirement Systems2,906$2.63M
Osmosis Investment Management UK Ltd2,473$2.24M
Sherman Porfolios, LLC2,145$1.94M
XTX Topco Ltd2,025$1.84M
Lifestyle Asset Management, Inc.1,997$1.81M
Diversify Advisory Services, LLC1,741$1.80M
Two Sigma Securities, LLC1,884$1.71M
Optimize Financial Inc1,615$1.46M
Pinebridge Investments LLC1,578$1.43M
Virginia Retirement Systems Et Al1,260$1.14M
Scientech Research LLC1,208$1.09M
Bridgefront Capital, LLC1,205$1.09M
Point Nemo Capital, LLC1,198$1.09M
HighPoint Advisor Group LLC1,145$1.04M
Steel Peak Wealth Management LLC1,067$968.8K
CFC Planning Co LLC1,006$911.8K
Picton Mahoney Asset Management981$889.1K
Dynamic Technology Lab Private Ltd980$888.0K
Group One Trading, L.P.929$842.0K
Stevens Capital Management LP928$841.0K
Peak Financial Advisors LLC789$715.1K
Farringdon Capital, Ltd.682$618.1K
LRT Capital Management, LLC663$600.9K
Unique Wealth Strategies, LLC629$570.5K
Quantitative Investment Management, LLC627$568.0K
Laurion Capital Management LP600$543.8K
Navellier & Associates Inc565$512.1K
Alps Advisors Inc548$496.7K
AdvisorShares Investments LLC520$471.3K
EFG International AG504$456.8K
Campbell & CO Investment Adviser LLC503$455.9K
Deroy & Devereaux Private Investment Counsel Inc500$453.0K
Financial Advisors Network, Inc.479$434.3K
Adams Wealth Management456$419.1K
CacheTech Inc.456$419.1K
Fox Run Management, L.L.C.458$415.1K
Covenant Partners, LLC454$411.5K
McHugh Group, LLC425$385.2K
Yarbrough Capital, LLC418$378.9K
Landscape Capital Management, L.L.C.406$368.0K
Journey Retirement Planning & Investment Management LLC405$367.3K
Forum Financial Management, LP390$353.5K
Aptus Capital Advisors, LLC383$347.1K
Sage Mountain Advisors LLC320$290.3K
Wealthspire Advisors, LLC301$272.8K
Unique Wealth, LLC281$254.7K
Quest Partners LLC276$250.2K
Walser Wealth Management Company, A Ltd Liability Co273$247.4K
Hutchens & Kramer Investment Management Group, LLC272$246.5K
Howard Capital Management Inc.270$244.7K
Occidental Asset Management, LLC266$241.1K
OneAscent Financial Services LLC263$238.7K
Fedenia Advisers LLC262$237.5K
Personal Cfo Solutions, LLC257$233.0K
MQS Management LLC256$232.0K
Hollencrest Capital Management245$222.1K
Gerber Kawasaki Wealth & Investment Management226$205.1K
Clear Street Markets LLC144$130.5K
Elyxium Wealth, LLC115$104.3K
Sentry Investment Management LLC114$103.0K
Reflection Asset Management102$92.4K
Alphadyne Asset Management LP67$60.7K
Greenline Wealth Management LLC42$37.7K
University of Texas/Texas Am Investment Managment Co31$28.1K
Modus Advisors, LLC22$19.9K
Cresta Advisors, Ltd.20$18.1K
Berbice Capital Management LLC20$18.1K
CBIZ Investment Advisory Services, LLC18$16.3K
TCTC Holdings, LLC18$16.3K
Tucker Asset Management LLC17$15.4K
Barnes Dennig Private Wealth Management LLC17$15.4K
Howard Hughes Medical Institute10$9.06K
Flagship Harbor Advisors, LLC10$9.06K
Ameriflex Group, Inc.10$9.06K
Luken Investment Analytics, LLC9$8.16K
Quarry LP8$7.25K
Wealth Watch Advisors, INC8$7.25K
Concord Wealth Partners7$6.34K
Cape Investment Advisory, Inc.7$6.34K
United Community Bank5$4.53K
Jessup Wealth Management, Inc4$3.63K
Turning Point Benefit Group, Inc.4$3.63K
Networth Advisors, LLC4$3.63K
Optima Capital LLC3$2.72K
HFM Investment Advisors, LLC2$1.81K
Legacy Bridge, LLC1$907
Tompkins Financial Corp1$906
Eastern Bank1$906

Not filed for Q1 2026 yet (17)

Institutions that held Monolithic Power Systems, Inc. at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding MPWR in Q4 2025 that haven't filed for Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Vanguard Group Inc6,034,394$5.47B
Norges Bank726,705$658.7M
CIBC Private Wealth Group, LLC58,914$53.4M
CIBC World Markets Corp31,321$28.4M
Forsta Ap-Fonden25,720$23.3M
Comerica Bank7,317$6.63M
Liberty Capital Management, Inc.1,343$1.22M
David Loasby1,137$1.10M
Global Retirement Partners, LLC822$745.3K
Clarius Group, LLC508$460.4K
MGB Wealth Management, LLC500$453.2K
Financial Advisory Corp425$385.0K
FineMark National Bank & Trust414$375.2K
Yeomans Consulting Group, Inc.411$372.5K
Trust Co of Vermont130$117.8K
DV Equities, LLC67$60.7K
ORG Partners LLC5$4.53K