Monolithic Power Systems, Inc.

MPWR

Exchange: Nasdaq
Industry: Semiconductors & Related Devices
SEC CIK: 0001280452

SEC filings (opens in a new tab)

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, Q1 2021

Institutional positions in Monolithic Power Systems, Inc. as of Mar 31, 2021. 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: 530; No complete 13F data for Q4 2020
Shares held: 42.7M; No complete 13F data for Q4 2020
Total value: $15.1B; No complete 13F data for Q4 2020

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 2021: 530 institutions

Value heldQ1 2021: $15.1B

Institutions holding MPWR and their total value by quarter
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, Q1 2021

Shares, value and share of portfolio for each institution holding Monolithic Power Systems, Inc..

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding MPWR in Q1 2021
Institution	Shares	Value	% of portfolio	Change in shares	Action
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main	9,247	$3.27M	0.01%	–	–
Midwest Wealth Management Inc.	9,197	$3.25M	2.64%	–	–
Pinebridge Investments, L.P.	9,149	$3.23M	0.04%	–	–
Lazard Asset Management LLC	8,748	$3.09M	0.00%	–	–
Susquehanna Fundamental Investments, LLC	8,697	$3.07M	0.05%	–	–
Amalgamated Bank	8,678	$3.06M	0.11%	–	–
Executive Wealth Management, LLC	8,500	$3.00M	0.35%	–	–
Two Sigma Advisers, LP	8,400	$2.97M	0.01%	–	–
Utah Retirement Systems	8,296	$2.93M	0.04%	–	–
Bank of Nova Scotia	8,074	$2.85M	0.01%	–	–
Twin Tree Management, LP	7,896	$2.79M	0.11%	–	–
Quantbot Technologies LP	7,840	$2.77M	0.26%	–	–
NN Investment Partners Holdings N.V.	7,825	$2.76M	0.02%	–	–
Granahan Investment Management Inc	7,805	$2.76M	0.06%	–	–
CIBC World Markets Corp	7,537	$2.66M	0.02%	–	–
Nomura Asset Management Co Ltd	7,531	$2.66M	0.02%	–	–
Metropolitan Life Insurance Co	7,525	$2.66M	0.04%	–	–
Handelsbanken Fonder AB	7,444	$2.63M	0.01%	–	–
Stratos Wealth Partners, LTD.	7,358	$2.60M	0.07%	–	–
Mackay Shields LLC	7,199	$2.54M	0.02%	–	–
Skandinaviska Enskilda Banken AB (publ)	7,200	$2.54M	0.02%	–	–
Texas Permanent School Fund	7,161	$2.53M	0.03%	–	–
Capital Impact Advisors, LLC	7,135	$2.52M	0.88%	–	–
Mutual of America Capital Management LLC	7,128	$2.52M	0.03%	–	–
British Columbia Investment Management Corp	7,031	$2.48M	0.02%	–	–
Azzad Asset Management Inc	6,920	$2.44M	0.41%	–	–
Prelude Capital Management, LLC	6,913	$2.44M	0.17%	–	–
State of Alaska, Department of Revenue	6,719	$2.37M	0.03%	–	–
First Hawaiian Bank	6,640	$2.35M	0.10%	–	–
GAM Holding AG	6,774	$2.32M	0.11%	–	–
First Citizens Bank & Trust Co	6,508	$2.30M	0.11%	–	–
Xponance, Inc.	6,473	$2.29M	0.05%	–	–
Public Employees Retirement Association of Colorado	6,223	$2.20M	0.01%	–	–
SG Americas Securities, LLC	6,106	$2.16M	0.01%	–	–
Fortis Capital Management LLC	6,100	$2.15M	1.24%	–	–
Fulcrum Equity Management	6,065	$2.14M	0.85%	–	–
Foundry Partners, LLC	5,941	$2.10M	0.07%	–	–
Keybank National Association	5,916	$2.09M	0.01%	–	–
AdvisorShares Investments LLC	5,721	$2.02M	0.25%	–	–
O'Shares Investment Advisers, LLC	5,660	$2.00M	0.15%	–	–
Intrust Bank NA	5,601	$1.98M	0.28%	–	–
Mitchell Capital Management Co	5,592	$1.98M	0.48%	–	–
Empowered Funds, LLC	5,325	$1.95M	0.37%	–	–
Winton Group Ltd	5,393	$1.91M	0.11%	–	–
Commonwealth of Pennsylvania Public School Empls Retrmt Sys	5,363	$1.89M	0.02%	–	–
APG Asset Management N.V.	6,195	$1.86M	0.00%	–	–
TownSquare Capital, LLC	5,154	$1.82M	0.07%	–	–
MML Investors Services, LLC	5,122	$1.81M	0.02%	–	–
B. Metzler seel. Sohn & Co. Holding AG	5,039	$1.78M	0.03%	–	–
Crown Advisors Management, Inc.	5,000	$1.77M	1.38%	–	–
Fifth Third Bancorp	4,908	$1.73M	0.01%	–	–
Brinker Capital Investments, LLC	4,844	$1.71M	0.03%	–	–
Tributary Capital Management, LLC	4,800	$1.70M	0.13%	–	–
Northwestern Mutual Wealth Management Co	4,732	$1.67M	0.00%	–	–
HighTower Advisors, LLC	4,722	$1.66M	0.01%	–	–
Teachers Retirement System of the State of Kentucky	4,699	$1.66M	0.02%	–	–
Hartford Investment Management Co	4,657	$1.65M	0.04%	–	–
Campbell Newman Asset Management Inc	4,607	$1.63M	0.17%	–	–
PFG Advisors	4,602	$1.63M	0.21%	–	–
Torray LLC	4,591	$1.62M	0.25%	–	–
Nissay Asset Management Corp	4,552	$1.61M	0.02%	–	–
IFM Investors Pty Ltd	4,438	$1.57M	0.04%	–	–
Westover Capital Advisors, LLC	4,343	$1.53M	0.53%	–	–
Wolverine Trading, LLC	4,417	$1.51M	0.03%	–	–
Lisanti Capital Growth, LLC	4,235	$1.50M	0.19%	–	–
Jane Street Group, LLC	4,236	$1.50M	0.00%	–	–
Coldstream Capital Management Inc	4,091	$1.45M	0.08%	–	–
Public Sector Pension Investment Board	4,060	$1.43M	0.01%	–	–
MAI Capital Management	4,037	$1.43M	0.03%	–	–
Tower Research Capital LLC (TRC)	3,973	$1.40M	0.02%	–	–
Jacobs Levy Equity Management, Inc	3,968	$1.40M	0.01%	–	–
Janus Henderson Group PLC	3,934	$1.39M	0.00%	–	–
Shaker Investments LLC	3,911	$1.38M	0.67%	–	–
Virtue Capital Management, LLC	3,851	$1.36M	0.32%	–	–
USS Investment Management Ltd	3,800	$1.34M	0.01%	–	–
TD Private Client Wealth LLC	3,760	$1.33M	0.06%	–	–
Securian Asset Management, Inc	3,750	$1.32M	0.03%	–	–
Captrust Financial Advisors	3,732	$1.32M	0.01%	–	–
CIBC Asset Management Inc	3,718	$1.31M	0.01%	–	–
Penserra Capital Management LLC	3,556	$1.25M	0.02%	–	–
Calamos Advisors LLC	3,544	$1.25M	0.01%	–	–
Norinchukin Bank, The	3,532	$1.25M	0.02%	–	–
Janney Montgomery Scott LLC	3,480	$1.23M	0.01%	–	–
Fort Washington Investment Advisors Inc	3,329	$1.18M	0.01%	–	–
Maryland State Retirement & Pension System	3,328	$1.18M	0.04%	–	–
Oak Ridge Investments LLC	3,281	$1.16M	0.11%	–	–
Saturna Capital CORP	3,211	$1.13M	0.03%	–	–
Polianta Ltd	3,200	$1.13M	0.63%	–	–
Pier 88 Investment Partners LLC	3,171	$1.12M	0.38%	–	–
Advisor OS, LLC	3,159	$1.11M	0.25%	–	–
Van Eck Associates Corp	3,107	$1.10M	0.00%	–	–
Renaissance Group LLC	3,106	$1.10M	0.05%	–	–
Central Trust Co	3,062	$1.08M	0.04%	–	–
Engineers Gate Manager LP	3,050	$1.08M	0.05%	–	–
Twinbeech Capital LP	3,050	$1.08M	0.16%	–	–
Yorktown Management & Research Co Inc	3,000	$1.06M	0.88%	–	–
Daiwa Securities Group Inc.	3,001	$1.06M	0.01%	–	–
La Financiere de L'Echiquier	3,000	$1.06M	0.04%	–	–
Quadrature Capital Ltd	2,984	$1.05M	0.05%	–	–
Marshall Wace North America L.P.	2,970	$1.05M	0.00%	–	–