Institutional shares held 43.4 Million
521K calls
992K puts
Total value of holdings $25.7B
$309M calls
$588M puts
Market Cap $27.8B
46,941,000 Shares Out.
Institutional ownership 92.44%
# of Institutions 955


Latest Institutional Activity in MPWR

Top Purchases

Q1 2025
Park National Corp Shares Held: 33.6K ($19.9M)
Q1 2025
Sg Americas Securities, LLC Shares Held: 25.7K ($15.2M)
Q1 2025
Teacher Retirement System Of Texas Shares Held: 17.6K ($10.5M)
Q1 2025
Cboe Vest Financial, LLC Shares Held: 16.3K ($9.66M)
Q1 2025
Vantage Investment Partners, LLC Shares Held: 43.8K ($26M)

Top Sells

Q1 2025
Gamma Investing LLC Shares Held: 1.34K ($796K)
Q1 2025
Vaughan Nelson Investment Management, L.P. Shares Held: 256K ($152M)
Q1 2025
Brown Advisory Inc Shares Held: 934K ($554M)
Q1 2025
Victory Capital Management Inc Shares Held: 92.2K ($54.7M)
Q1 2025
Massachusetts Financial Services CO Shares Held: 458K ($271M)

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
52.5K Shares
From 8 Insiders
Grant, award, or other acquisition 2.01K shares
Bona fide gift 50.5K shares
Sell / Disposition
273K Shares
From 11 Insiders
Open market or private sale 189K shares
Bona fide gift 84.2K shares

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P - Open market or private purchase×
S - Open market or private sale×
V - Transaction voluntarily reported earlier than required×
A - Grant, award, or other acquisition×
D - Sale (or disposition) back to the issuer×
F - Payment of exercise price or tax liability×
I - Discretionary transaction×
M - Exercise of conversion of derivative security×
C - Conversion of derivative security×
E - Expiration of short derivative position×
H - Expiration (or cancellation) of long derivative position with value received×
O - Exercise of out-of-the-money derivative securities×
X - Exercise of in-the-money or at-the-money derivatives securities×
G - Bona fide gift×
L - Small Acquisition×
W - Acquisition or disposition by will or laws×
Z - Deposit into or withdrawal from voting trust×
J - Other acquisition or disposition×
K - Transaction in equity swap or similar instrument×
U - Disposition due to a tender of shares in a change of control transaction×
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