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Monolithic Power Systems (MPWR) Insider Trading & Ownership

Monolithic Power Systems logo
$835.76 -22.70 (-2.64%)
Closing price 08/29/2025 04:00 PM Eastern
Extended Trading
$834.20 -1.55 (-0.19%)
As of 08/29/2025 07:51 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.
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Monolithic Power Systems (NASDAQ:MPWR) Insider Buying and Selling Activity

Current
Insider Ownership
Percentage
3.40%
Number Of
Insiders Buying
(Last 12 Months)
0
Number Of
Insiders Selling
(Last 12 Months)
5
Amount Of
Insider Selling
(Last 12 Months)
$71.50M
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MPWR Insider Buying and Selling by Quarter

Monolithic Power Systems Insider and Congressional Trades History

Export to Excel
Transaction DateNameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionDetails
8/27/2025Jeff ZhouDirectorSell193$870.00$167,910.00  
8/13/2025Jeff ZhouDirectorSell400$850.00$340,000.00  
8/12/2025Jeff ZhouDirectorSell200$830.00$166,000.00  
8/1/2025Deming XiaoEVPSell39,999$780.00$31,199,220.00  
8/1/2025Theodore BlegenCFOSell3,000$750.00$2,250,000.00  
7/1/2025Theodore BlegenCFOSell6,000$750.00$4,500,000.00  
5/12/2025Kuo Wei Herbert ChangDirectorSell100$698.00$69,800.00  
5/12/2025Maurice SciammasEVPSell12,000$701.00$8,412,000.00  
5/8/2025Kuo Wei Herbert ChangDirectorSell100$650.00$65,000.00  
4/23/2025Ro KhannaU.S. Congress Member (D-CA)Sell$536.97$1,001 - $15,000
4/8/2025Robert Bresnahan, Jr.U.S. Congress Member (R-PA)Buy$455.19$1,001 - $15,000
2/7/2025Maurice SciammasEVPSell7,000$701.98$4,913,860.00  
1/13/2025Robert Bresnahan, Jr.U.S. Congress Member (R-PA)Sell$587.35$1,001 - $15,000
12/9/2024Theodore BlegenCFOSell2,500$600.00$1,500,000.00  
11/8/2024Deming XiaoEVPSell866$765.14$662,611.24  
11/8/2024Theodore BlegenCFOSell734$765.15$561,620.10  
11/1/2024Theodore BlegenCFOSell2,500$772.96$1,932,400.00  
10/7/2024Maurice SciammasEVPSell11,000$929.59$10,225,490.00  
10/1/2024Theodore BlegenCFOSell2,500$908.36$2,270,900.00  
9/3/2024Theodore BlegenCFOSell2,500$904.20$2,260,500.00  
(Data available from 1/1/2013 forward)

MPWR Insider Trading Activity - Frequently Asked Questions

The list of insiders at Monolithic Power Systems includes Deming Xiao, James C Moyer, Jeff Zhou, Kuo Wei Herbert Chang, Maurice Sciammas, Michael Hsing, Saria Tseng, Theodore Blegen, and Victor K Lee. Learn more on insiders at MPWR.

3.40% of Monolithic Power Systems stock is owned by insiders. Learn more on MPWR's insider holdings.

The following insiders have sold MPWR shares in the last 24 months: Deming Xiao ($62,346,484.84), James C Moyer ($2,047,972.00), Jeff Zhou ($974,024.00), Kuo Wei Herbert Chang ($696,885.00), Maurice Sciammas ($49,130,202.68), Michael Hsing ($85,812,585.72), Saria Tseng ($57,339,795.94), Theodore Blegen ($50,282,121.80), and Victor K Lee ($820,460.00).

Insiders have sold a total of 448,660 Monolithic Power Systems shares in the last 24 months for a total of $309,450,531.98 sold.

Robert Bresnahan, Jr. (R-PA) has bought shares of Monolithic Power Systems in the last year totaling $8,000. Ro Khanna (D-CA) and Robert Bresnahan, Jr. (R-PA) have sold shares totaling $16,000.

Monolithic Power Systems Key Executives


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This page (NASDAQ:MPWR) was last updated on 8/30/2025 by MarketBeat.com Staff
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