Monolithic Power Systems Inc (MPWR) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

48,052,291Shares Outstanding

391,885Shares held by institutions

$459,751,644Value of institutional holdings

90.78%Institutional ownership %

-33.38%Shares Changed QoQ

1,001No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

The institutional landscape for Monolithic Power Systems Inc (NASDAQ:MPWR) includes 1001 filers as of the latest reporting cycle ending December 2025.

These investors collectively held 90.8% of the company's total shares outstanding in December 2025, down from 145.0% in September 2025.
Institutional share ownership changed by -33.38% QoQ, while the number of institutional owners saw an increase of 17.76% YoY.
A review of institutional activity for Monolithic Power Systems shows 535 of 1001 filers increasing their positions, while 335 reduced their stake, and 131 remained unchanged.
The total number of shares held by institutions in Monolithic Power Systems decreased to 43.62Mn as of December 2025, a net change of down by 21.85Mn shares quarter on quarter, and down 3.39Mn shares year over year.
VANGUARD GROUP INC's holding of 6.03Mn shares as of December 31, 2025 makes it the primary institutional investor in Monolithic Power Systems, owning 12.56% of the stock.
Among the most significant buyers of Monolithic Power Systems during December 2025 were NORGES BANK (726.71K), FMR LLC (412.21K), SG Americas Securities, LLC (261.89K), FIRST TRUST ADVISORS LP (253.65K), BARCLAYS PLC (242.74K).
Leading sellers of Monolithic Power Systems stock in December 2025 included Lombard Odier Asset Management (Europe) Ltd (22.68Mn), JPMORGAN CHASE & CO (350.95K), T. Rowe Price Investment Management, Inc. (274.38K), CITADEL ADVISORS LLC (249.24K), VAN ECK ASSOCIATES CORP (230.14K).
The top 10 institutional holders of Monolithic Power Systems for the quarter ending December 2025 included VANGUARD GROUP INC (6.03Mn), BlackRock, Inc. (5.96Mn), FMR LLC (3.98Mn), STATE STREET CORP (2.18Mn), GEODE CAPITAL MANAGEMENT, LLC (1.38Mn), FRANKLIN RESOURCES INC (1.05Mn), NORGES BANK (726.71K), FIRST TRUST ADVISORS LP (701.45K), MORGAN STANLEY (649.07K), BARCLAYS PLC (604.80K).

1,001 Institutional Holders

391,885 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
VANGUARD GROUP INC	31 Dec, 2025	6,034,394	-39,639	-0.65%	$5,469,333,346.00
BlackRock, Inc.	31 Dec, 2025	5,962,391	235,617	4.11%	$5,404,072,656.00
FMR LLC	31 Dec, 2025	3,977,008	412,212	11.56%	$3,604,600,851.00
STATE STREET CORP	31 Dec, 2025	2,180,419	45,715	2.14%	$1,979,609,520.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	1,382,280	44,583	3.33%	$1,248,435,634.00
FRANKLIN RESOURCES INC	31 Dec, 2025	1,049,409	-2,644	-0.25%	$951,142,476.00
NORGES BANK	31 Dec, 2025	726,705	726,705	0.00%	$658,656,344.00
FIRST TRUST ADVISORS LP	31 Dec, 2025	701,454	253,653	56.64%	$635,770,374.00
MORGAN STANLEY	31 Dec, 2025	649,070	90,399	16.18%	$588,293,698.00
BARCLAYS PLC	31 Dec, 2025	604,802	242,740	67.04%	$548,168,340.00
GOLDMAN SACHS GROUP INC	31 Dec, 2025	595,662	159,337	36.52%	$539,884,178.00
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	31 Dec, 2025	570,719	14,132	2.54%	$517,276,874.00
BANK OF AMERICA CORP /DE/	31 Dec, 2025	549,575	-173,241	-23.97%	$498,112,749.00
JPMORGAN CHASE & CO	31 Dec, 2025	512,273	-350,955	-40.66%	$464,305,775.00
VAN ECK ASSOCIATES CORP	31 Dec, 2025	502,312	-230,136	-31.42%	$455,276.00
BROWN ADVISORY INC	31 Dec, 2025	500,755	-229,364	-31.41%	$453,887,111.00
NORTHERN TRUST CORP	31 Dec, 2025	483,700	-2,131	-0.44%	$438,406,331.00
T. Rowe Price Investment Management, Inc.	31 Dec, 2025	476,308	-274,380	-36.55%	$431,707.00
UBS Group AG	31 Dec, 2025	438,985	-89,334	-16.91%	$397,878,444.00
Rafferty Asset Management, LLC	31 Dec, 2025	396,464	17,146	4.52%	$359,339,111.00

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