Institutional shares held 66.4 Million
397K calls
404K puts
Total value of holdings $61.1B
$365M calls
$371M puts
Market Cap $43.2B
46,941,000 Shares Out.
Institutional ownership 141.39%
# of Institutions 1,094


Latest Institutional Activity in MPWR

Top Purchases

Q3 2025
Lombard Odier Asset Management (Europe) LTD Shares Held: 22.7M ($20.9B)
Q3 2025
Citadel Advisors LLC Shares Held: 260K ($240M)
Q3 2025
Jpmorgan Chase & CO Shares Held: 863K ($794M)
Q3 2025
Rakuten Investment Management, Inc. Shares Held: 214K ($197M)
Q3 2025
First Trust Advisors LP Shares Held: 448K ($412M)

Top Sells

Q3 2025
Price T Rowe Associates Inc Shares Held: 1.57M ($1.45B)
Q3 2025
Wellington Management Group LLP Shares Held: 453K ($417M)
Q3 2025
Van Eck Associates Corp Shares Held: 732K ($674M)
Q3 2025
T. Rowe Price Investment Management, Inc. Shares Held: 751K ($691M)
Q3 2025
Ensign Peak Advisors, Inc Shares Held: 163K ($150M)

About MPWR

Monolithic Power Systems, Inc. engages in the design, development, marketing, and sale of semiconductor-based power electronics solutions for the computing and storage, automotive, industrial, communications, and consumer markets. The company provides direct current (DC) to DC integrated circuits (ICs) that are used to convert and control voltages of various electronic systems, such as portable electronic devices, wireless LAN access points, computers and notebooks, monitors, infotainment applications, and medical equipment. It also offers lighting control ICs for backlighting that are used in systems, which provide the light source for LCD panels in notebook computers, monitors, car navigation systems, and televisions, as well as for general illumination products. The company sells its products through third-party distributors and value-added resellers, as well as directly to original equipment manufacturers, original design manufacturers, electronic manufacturing service providers, and other end customers in China, Taiwan, Europe, South Korea, Southeast Asia, Japan, the United States, and internationally. Monolithic Power Systems, Inc. was incorporated in 1997 and is headquartered in Kirkland, Washington.


Insider Transactions at MPWR

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
821K Shares
From 13 Insiders
Grant, award, or other acquisition 799K shares
Bona fide gift 21.3K shares
Sell / Disposition
680K Shares
From 16 Insiders
Payment of exercise price or tax liability 334K shares
Open market or private sale 324K shares
Bona fide gift 22.3K shares

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