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MPWR - Monolithic Power Systems Inc

Insider Sale by Tseng Saria (EVP, GC)

1 Month
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Trade Summary

6 days ago, Tseng Saria, serving as EVP, GC at Monolithic Power Systems Inc (MPWR), sold 25,674 shares at $1,010.50 per share, for a total transaction value of $25,943,638.00. Following this transaction, Tseng Saria now holds 175,982 shares of MPWR.

This sale represents a 13.00% decrease in Tseng Saria's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Monday, March 30, 2026 and publicly disclosed via SEC Form 4 filing on Wednesday, April 1, 2026, 2 days after the trade was made.

Monolithic Power Systems Inc operates in the TECHNOLOGY sector, specifically within the SEMICONDUCTORS industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.

Tseng Saria

EVP, GC

Saria Tseng is the Executive Vice President of Strategic Corporate Development, General Counsel, and Corporate Secretary at Monolithic Power Systems, Inc. (MPS), a role she has held since her promotion, building on her position as Vice President, General Counsel, and Corporate Secretary starting in 2004.[[1]](https://fintool.com/app/research/companies/MPWR/people/saria-tseng)[[4]](https://www.monolithicpower.com/en/about-mps/investor-relations/corporate-governance/management.html) She joined MPS from MaXXan Systems Inc., where she served as Vice President and General Counsel from 2001 to 2004, and has since led the company's legal functions, established corporate secretary operations, and overseen strategic corporate development.[[1]](https://fintool.com/app/research/companies/MPWR/people/saria-tseng)[[2]](https://eepower.com/news/monolithic-power-systems-appoints-saria-tseng-as-vp/)[[4]](https://www.monolithicpower.com/en/about-mps/investor-relations/corporate-governance/management.html) Tseng, age 54, holds a Master of Laws (LL.M.) from the University of California, Berkeley, and another LL.M. from Chinese Culture University in Taipei, with bar admissions in California, New York, and Taiwan.[[1]](https://fintool.com/app/research/companies/MPWR/people/saria-tseng) Her career highlights include service as an Independent Director at Super Micro Computer, Inc. from 2016 to 2022 and current role as Independent Director at Alchip Technologies Ltd. since 2025.[[5]](https://www.marketscreener.com/insider/SARIA-TSENG-A01HMV/) As a recent corporate insider, she sold 22,875 shares on February 6, 2026, to cover RSU taxes, retaining significant holdings valued at approximately $101 million as of early 2025.[[3]](https://www.stocktitan.net/sec-filings/MPWR/form-4-monolithic-power-systems-inc-insider-trading-activity-df7e6bd6f7da.html)[[5]](https://www.marketscreener.com/insider/SARIA-TSENG-A01HMV/)

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Trade Price

$1,010.50

Quantity

25,674

Total Value

$25,943,638.00

Shares Owned

175,982

Trade Date

Monday, March 30, 2026

6 days ago

SEC Filing Date

Wednesday, April 1, 2026

Filed 2 days after trade

TECHNOLOGYSEMICONDUCTORS

About Monolithic Power Systems Inc

Company Overview

No company information available
View news mentioning MPWR

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