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
First Hawaiian Bank	6,640	$2.35M	0.10%	–	–
State of Alaska, Department of Revenue	6,719	$2.37M	0.03%	–	–
Prelude Capital Management, LLC	6,913	$2.44M	0.17%	–	–
Azzad Asset Management Inc	6,920	$2.44M	0.41%	–	–
British Columbia Investment Management Corp	7,031	$2.48M	0.02%	–	–
Mutual of America Capital Management LLC	7,128	$2.52M	0.03%	–	–
Capital Impact Advisors, LLC	7,135	$2.52M	0.88%	–	–
Texas Permanent School Fund	7,161	$2.53M	0.03%	–	–
Mackay Shields LLC	7,199	$2.54M	0.02%	–	–
Skandinaviska Enskilda Banken AB (publ)	7,200	$2.54M	0.02%	–	–
Stratos Wealth Partners, LTD.	7,358	$2.60M	0.07%	–	–
Handelsbanken Fonder AB	7,444	$2.63M	0.01%	–	–
Metropolitan Life Insurance Co	7,525	$2.66M	0.04%	–	–
Nomura Asset Management Co Ltd	7,531	$2.66M	0.02%	–	–
CIBC World Markets Corp	7,537	$2.66M	0.02%	–	–
Granahan Investment Management Inc	7,805	$2.76M	0.06%	–	–
NN Investment Partners Holdings N.V.	7,825	$2.76M	0.02%	–	–
Quantbot Technologies LP	7,840	$2.77M	0.26%	–	–
Twin Tree Management, LP	7,896	$2.79M	0.11%	–	–
Bank of Nova Scotia	8,074	$2.85M	0.01%	–	–
Utah Retirement Systems	8,296	$2.93M	0.04%	–	–
Two Sigma Advisers, LP	8,400	$2.97M	0.01%	–	–
Executive Wealth Management, LLC	8,500	$3.00M	0.35%	–	–
Amalgamated Bank	8,678	$3.06M	0.11%	–	–
Susquehanna Fundamental Investments, LLC	8,697	$3.07M	0.05%	–	–
Lazard Asset Management LLC	8,748	$3.09M	0.00%	–	–
Pinebridge Investments, L.P.	9,149	$3.23M	0.04%	–	–
Midwest Wealth Management Inc.	9,197	$3.25M	2.64%	–	–
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main	9,247	$3.27M	0.01%	–	–
Chartwell Investment Partners, LLC	9,480	$3.35M	0.10%	–	–
PEAK6 Investments LLC	9,575	$3.38M	0.09%	–	–
Gulf International Bank (UK) Ltd	9,615	$3.40M	0.05%	–	–
Triasima Portfolio Management inc.	9,660	$3.41M	0.17%	–	–
Truist Financial Corp	9,823	$3.47M	0.01%	–	–
American Capital Management Inc	9,998	$3.53M	0.11%	–	–
Bahl & Gaynor Inc	10,066	$3.56M	0.02%	–	–
Robeco Institutional Asset Management B.V.	10,108	$3.57M	0.01%	–	–
MetLife Investment Management	10,219	$3.61M	0.03%	–	–
Boothbay Fund Management, LLC	10,336	$3.65M	0.19%	–	–
Intrinsic Edge Capital Management LLC	10,521	$3.72M	0.26%	–	–
Nisa Investment Advisors, LLC	10,530	$3.72M	0.02%	–	–
Blair William & Co	10,572	$3.73M	0.01%	–	–
Man Group plc	10,739	$3.79M	0.02%	–	–
State of Michigan Retirement System	10,800	$3.81M	0.02%	–	–
Two Sigma Investments, LP	10,996	$3.88M	0.01%	–	–
Level Four Advisory Services, LLC	11,264	$3.98M	0.31%	–	–
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund	11,400	$4.03M	0.04%	–	–
ProShare Advisors LLC	11,440	$4.04M	0.01%	–	–
AlphaStar Capital Management, LLC	12,009	$4.25M	0.66%	–	–
Covenant Asset Management, LLC	12,071	$4.26M	1.44%	–	–
Arizona State Retirement System	12,352	$4.36M	0.04%	–	–
Guggenheim Capital LLC	12,529	$4.42M	0.03%	–	–
Natixis Advisors, L.P.	12,538	$4.43M	0.02%	–	–
Zurcher Kantonalbank (Zurich Cantonalbank)	12,803	$4.52M	0.03%	–	–
ClariVest Asset Management LLC	12,950	$4.58M	0.16%	–	–
Vontobel Holding Ltd.	13,522	$4.78M	0.04%	–	–
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.	13,670	$4.83M	0.03%	–	–
State of Tennessee, Treasury Department	13,708	$4.84M	0.02%	–	–
AMP Capital Investors Ltd	13,789	$4.86M	0.02%	–	–
Capital Fund Management S.A.	13,868	$4.90M	0.17%	–	–
American International Group, Inc.	14,118	$4.99M	0.02%	–	–
Synovus Financial Corp	14,196	$5.02M	0.06%	–	–
Crossmark Global Holdings, Inc.	14,389	$5.08M	0.13%	–	–
Advisors Asset Management, Inc.	14,865	$5.25M	0.08%	–	–
Standard Life Aberdeen plc	14,869	$5.25M	0.01%	–	–
Royal London Asset Management Ltd	14,921	$5.27M	0.02%	–	–
Zevenbergen Capital Investments LLC	15,215	$5.37M	0.10%	–	–
Comerica Bank	14,321	$5.45M	0.03%	–	–
Commerce Bank	15,742	$5.56M	0.04%	–	–
Oppenheimer Asset Management Inc.	15,779	$5.57M	0.09%	–	–
Cinctive Capital Management LP	15,891	$5.61M	0.36%	–	–
Westwood Holdings Group Inc.	15,895	$5.61M	0.06%	–	–
Retirement Systems of Alabama	15,996	$5.65M	0.02%	–	–
Treasurer of the State of North Carolina	16,159	$5.71M	0.04%	–	–
Stifel Financial Corp	16,178	$5.71M	0.01%	–	–
Taylor Frigon Capital Management LLC	16,244	$5.74M	1.77%	–	–
Raymond James Financial Services Advisors, Inc.	16,402	$5.79M	0.01%	–	–
Point72 Hong Kong Ltd	17,110	$6.04M	0.49%	–	–
American Century Companies Inc	17,611	$6.22M	0.00%	–	–
Advisor Group Holdings, Inc.	17,574	$6.23M	0.01%	–	–
Next Century Growth Investors LLC	17,876	$6.31M	0.48%	–	–
MUFG Securities EMEA plc	19,000	$6.71M	0.06%	–	–
Asset Management One Co.,Ltd.	19,242	$6.80M	0.03%	–	–
Amundi Asset Management US, Inc.	19,275	$6.81M	0.01%	–	–
Whittier Trust Co of Nevada Inc	19,672	$6.95M	0.31%	–	–
Sit Investment Associates Inc	20,210	$7.14M	0.19%	–	–
Oregon Public Employees Retirement Fund	20,812	$7.35M	0.09%	–	–
Navellier & Associates Inc	21,488	$7.59M	1.36%	–	–
LPL Financial LLC	21,497	$7.59M	0.01%	–	–
EULAV Asset Management	21,565	$7.62M	0.20%	–	–
Westpac Banking Corp	21,744	$7.68M	0.08%	–	–
Cubist Systematic Strategies, LLC	21,870	$7.72M	0.10%	–	–
Susquehanna International Group, LLP	22,070	$7.79M	0.01%	–	–
Ergoteles LLC	22,182	$7.83M	0.24%	–	–
Summit Creek Advisors LLC	22,395	$7.91M	0.94%	–	–
Aviva PLC	22,523	$7.96M	0.04%	–	–
US Bancorp	23,334	$8.24M	0.02%	–	–
Snowden Capital Advisors LLC	24,149	$8.53M	0.49%	–	–
Eaton Vance Management	24,918	$8.80M	0.01%	–	–
Russell Investments Group, Ltd.	25,350	$8.92M	0.02%	–	–