Monolithic Power Systems Inc MPWR
We take great care to ensure that the data presented and summarized in this overview for MONOLITHIC POWER SYSTEMS INC is accurate and up-to-date, based on a comprehensive analysis of 13F filing forms for institutional ownership and form 4 filings for insider transactions. Please note that this data may differ from other sources and should not be relied upon as the sole basis for investment decisions.
Top Institutions Holding MPWR
View all-
Lombard Odier Asset Management (Europe) LTD London, X022.7MShares$20.9 Billion21.84% of portfolio
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Vanguard Group Inc Valley Forge, PA6.07MShares$5.59 Billion0.09% of portfolio
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Black Rock Inc. New York, NY5.91MShares$5.44 Billion0.11% of portfolio
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State Street Corp Boston, MA2.13MShares$1.96 Billion0.07% of portfolio
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Price T Rowe Associates Inc Baltimore, MD1.57MShares$1.45 Billion0.16% of portfolio
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Geode Capital Management, LLC Boston, MA1.34MShares$1.23 Billion0.08% of portfolio
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Invesco Ltd. Atlanta, GA1.14MShares$1.05 Billion0.17% of portfolio
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Franklin Resources Inc San Mateo, CA1.05MShares$968 Million0.26% of portfolio
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Jpmorgan Chase & CO New York, NY863KShares$794 Million0.05% of portfolio
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T. Rowe Price Investment Management, Inc. Baltimore, MD751KShares$691 Million0.42% of portfolio
Latest Institutional Activity in MPWR
Top Purchases
Top Sells
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
View all| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Dec 01
2025
|
Theodore Blegen EVP and CFO |
SELL
Open market or private sale
|
Direct |
3,000
-0.41%
|
$2,715,000
$905.29 P/Share
|
|
Nov 26
2025
|
Saria Tseng EVP & General Counsel |
SELL
Open market or private sale
|
Direct |
20,000
-1.23%
|
$18,520,000
$926.44 P/Share
|
|
Nov 25
2025
|
Saria Tseng EVP & General Counsel |
SELL
Open market or private sale
|
Direct |
20,000
-0.53%
|
$18,060,000
$903.43 P/Share
|
|
Nov 25
2025
|
Kuo Wei Herbert Chang |
SELL
Open market or private sale
|
Direct |
100
-19.01%
|
$89,600
$896.97 P/Share
|
|
Nov 24
2025
|
Maurice Sciammas EVP, WW Sales & Marketing |
SELL
Open market or private sale
|
Direct |
3,976
-2.68%
|
$3,558,520
$895.23 P/Share
|
|
Nov 21
2025
|
Kuo Wei Herbert Chang |
SELL
Open market or private sale
|
Direct |
100
-15.97%
|
$87,300
$873.97 P/Share
|
|
Nov 19
2025
|
Maurice Sciammas EVP, WW Sales & Marketing |
SELL
Open market or private sale
|
Direct |
35,000
-0.87%
|
$30,590,000
$874.91 P/Share
|
|
Nov 13
2025
|
Maurice Sciammas EVP, WW Sales & Marketing |
BUY
Bona fide gift
|
Indirect |
4,530
+8.39%
|
-
|
|
Nov 13
2025
|
Maurice Sciammas EVP, WW Sales & Marketing |
SELL
Bona fide gift
|
Indirect |
4,530
-14.52%
|
-
|
|
Nov 12
2025
|
Michael Hsing CEO |
SELL
Open market or private sale
|
Direct |
37,000
-0.21%
|
$35,779,000
$967.03 P/Share
|
|
Nov 11
2025
|
Michael Hsing CEO |
SELL
Open market or private sale
|
Direct |
40,000
-0.24%
|
$38,360,000
$959.5 P/Share
|
|
Nov 05
2025
|
Maurice Sciammas EVP, WW Sales & Marketing |
SELL
Open market or private sale
|
Indirect |
200
-13.34%
|
$197,200
$986.81 P/Share
|
|
Nov 03
2025
|
Theodore Blegen EVP and CFO |
SELL
Open market or private sale
|
Direct |
3,000
-0.18%
|
$3,075,000
$1025.4 P/Share
|
|
Oct 30
2025
|
Michael Hsing CEO |
SELL
Payment of exercise price or tax liability
|
Direct |
121,918
-10.91%
|
$133,622,128
$1096.63 P/Share
|
|
Oct 30
2025
|
Saria Tseng EVP & General Counsel |
SELL
Payment of exercise price or tax liability
|
Direct |
54,543
-20.83%
|
$59,779,128
$1096.63 P/Share
|
|
Oct 30
2025
|
Theodore Blegen EVP and CFO |
SELL
Payment of exercise price or tax liability
|
Direct |
48,298
-38.44%
|
$52,934,608
$1096.63 P/Share
|
|
Oct 30
2025
|
Deming Xiao EVP, Global Operations |
SELL
Payment of exercise price or tax liability
|
Direct |
54,543
-21.29%
|
$59,779,128
$1096.63 P/Share
|
|
Oct 30
2025
|
Maurice Sciammas EVP, WW Sales & Marketing |
SELL
Payment of exercise price or tax liability
|
Direct |
54,543
-22.93%
|
$59,779,128
$1096.63 P/Share
|
|
Oct 25
2025
|
Maurice Sciammas EVP, WW Sales & Marketing |
BUY
Grant, award, or other acquisition
|
Direct |
135,520
+36.3%
|
-
|
|
Oct 25
2025
|
Deming Xiao EVP, Global Operations |
BUY
Grant, award, or other acquisition
|
Direct |
135,520
+34.6%
|
-
|
Last 12 Months Summary
| Grant, award, or other acquisition | 799K shares |
|---|---|
| Bona fide gift | 21.3K shares |
| Payment of exercise price or tax liability | 334K shares |
|---|---|
| Open market or private sale | 324K shares |
| Bona fide gift | 22.3K shares |