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Monolithic Power Systems (MPWR) Insider Trading & Ownership

Monolithic Power Systems logo
$1,139.93 -28.00 (-2.40%)
As of 09:41 AM Eastern
This is a fair market value price provided by Massive. Learn more.

Monolithic Power Systems (NASDAQ:MPWR) Insider Buying and Selling Activity

Current
Insider Ownership
Percentage
3.60%
Number Of
Insiders Buying
(Last 12 Months)
0
Number Of
Insiders Selling
(Last 12 Months)
9
Amount Of
Insider Selling
(Last 12 Months)
$335.80M
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MPWR Insider Buying and Selling by Quarter

Monolithic Power Systems Insider and Congressional Trades History

Transaction Date
0 Results
Transaction DateInsiderBuy/SellNumber of SharesAverage Share PriceTotal TransactionDetails
8/24/2026Sell50$1,281.57$64,078.50  
8/11/2026Sell50$1,420.00$71,000.00  
8/3/2026Sell30$1,343.94$40,318.20  
7/27/2026
Ro Khanna
Ro Khanna
House (D-CA)
Buy$1,339.08$1,001 - $15,000
7/1/2026Sell30$1,351.61$40,548.30  
6/18/2026
Ro Khanna
Ro Khanna
House (D-CA)
Buy$1,563.70$1,001 - $15,000
6/5/2026
Byron Donalds
Byron Donalds
House (R-FL)
Sell$1,481.05$1,001 - $15,000
6/1/2026Sell30$1,533.95$46,018.50  
5/27/2026Sell7,565$1,700.00$12,860,500.00  
5/26/2026
Jeff Zhou
Jeff Zhou
Director
Sell486$1,680.00$816,480.00  
5/22/2026Sell5,000$1,586.43$7,932,150.00  
5/22/2026
Ro Khanna
Ro Khanna
House (D-CA)
Buy$1,589.81$15,001 - $50,000
5/15/2026Sell12,000$1,561.40$18,736,800.00  
5/6/2026Sell30,000$1,654.55$49,636,500.00  
5/6/2026
Eileen Wynne
Eileen Wynne
Director
Sell335$1,582.68$530,197.80  
5/6/2026Sell12,000$1,584.96$19,019,520.00  
5/6/2026
Jeff Zhou
Jeff Zhou
Director
Sell500$1,650.00$825,000.00  
5/5/2026
Jeff Zhou
Jeff Zhou
Director
Sell1,014$1,587.06$1,609,278.84  
5/5/2026Sell380$1,583.81$601,847.80  
5/4/2026Sell30$1,588.73$47,661.90  
4/8/2026Sell8,963$1,305.22$11,698,686.86  
4/6/2026Sell7,636$1,167.95$8,918,466.20  
4/1/2026Sell30$1,116.44$33,493.20  
4/1/2026Sell1,400$1,133.52$1,586,928.00  
3/30/2026Sell25,674$1,010.50$25,943,577.00  
3/20/2026Sell30$1,095.07$32,852.10  
3/10/2026
Ro Khanna
Ro Khanna
House (D-CA)
Sell$1,055.82$1,001 - $15,000
2/11/2026Sell200$1,179.97$235,994.00  
2/9/2026
Victor K Lee
Victor K Lee
Director
Sell400$1,212.16$484,864.00  
2/6/2026Sell22,875$1,171.16$26,790,285.00  
2/6/2026Sell22,875$1,171.16$26,790,285.00  
2/6/2026Sell22,875$1,171.16$26,790,285.00  
2/6/2026Sell21,725$1,171.16$25,443,451.00  
2/5/2026
Ro Khanna
Ro Khanna
House (D-CA)
Buy$1,155.99$1,001 - $15,000
2/4/2026
Markwayne Mullin
Markwayne Mullin
Senate (R-OK)
Buy$1,136.83$15,001 - $50,000
2/2/2026Sell3,000$1,129.76$3,389,280.00  
1/5/2026
Markwayne Mullin
Markwayne Mullin
Senate (R-OK)
Buy$955.03$15,001 - $50,000
1/2/2026Sell3,000$940.47$2,821,410.00  
1/2/2026
Victor K Lee
Victor K Lee
Director
Sell600$930.86$558,516.00  
12/24/2025
Victor K Lee
Victor K Lee
Director
Sell1,000$951.72$951,720.00  
12/1/2025Sell3,000$908.21$2,724,630.00  
11/26/2025Sell20,000$926.47$18,529,400.00  
11/25/2025Sell100$896.97$89,697.00  
11/24/2025Sell3,976$895.23$3,559,434.48  
11/21/2025Sell100$873.97$87,397.00  
11/19/2025Sell27,966$881.66$24,656,503.56  
11/19/2025Sell7,034$870.21$6,121,057.14  
11/5/2025Sell200$986.81$197,362.00  
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11/3/2025Sell3,000$1,024.43$3,073,290.00  
10/24/2025Sell1,300$1,087.62$1,413,906.00  
(Data available from 1/1/2013 forward)

MPWR Insider Trading Activity - Frequently Asked Questions

3.60% 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: Carintia Martinez ($1,260,000.00), Deming Xiao ($108,288,616.24), Eileen Wynne ($530,197.80), Eugen J Elmiger ($19,019,520.00), Jeff Zhou ($3,924,668.84), Kuo Wei Herbert Chang ($446,972.50), Maurice Sciammas ($94,466,036.18), Saria Tseng ($146,081,866.24), Theodore Blegen ($53,378,761.10), and Victor K Lee ($1,995,100.00).

Insiders have sold a total of 392,801 Monolithic Power Systems shares in the last 24 months for a total of $429,391,738.90 sold.

Ro Khanna (D-CA) and Markwayne Mullin (R-OK) have bought shares of Monolithic Power Systems in the last year totaling $121,500. Byron Donalds (R-FL) and Ro Khanna (D-CA) have sold shares totaling $16,000.



Insider trading data for NASDAQ:MPWR was last updated on 8/24/2026, the date of the most recent reported insider or congressional trade. New trades are added as they're reported.
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