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MPWR insider trading

MONOLITHIC POWER SYSTEMS, INC. — open-market insider buys and $1M+ sells from SEC Forms 3, 4 and 5.
Insider buys · 24 mo
0
Bought · 24 mo
$0
Buys · last 90 days
0 · $0
Most recent buy

Recent insider filings

FiledInsiderTypeSharesPriceValue
2026-07-17Sciammas Maurice
EVP, WW Sales & Marketing
Sold11,246$1347.95$15.2M
2026-05-29Tseng Saria
EVP & General Counsel
Sold7,565$1700.00$12.9M
2026-05-27Tseng Saria
EVP & General Counsel
Sold5,000$1586.43$7.9M
2026-05-20Hsing Michael
CEO
Sold38,359$1481.60$56.8M
2026-05-19Sciammas Maurice
EVP, WW Sales & Marketing
Sold11,503$1560.49$18.0M
2026-05-08Elmiger Eugen J
Director
Sold11,166$1584.98$17.7M
2026-05-08Xiao Deming
EVP, Global Operations
Sold30,000$1654.55$49.6M
2026-04-10Tseng Saria
EVP & General Counsel
Sold7,163$1311.62$9.4M
2026-04-08Tseng Saria
EVP & General Counsel
Sold5,112$1174.83$6.0M
2026-04-01Tseng Saria
EVP & General Counsel
Sold25,428$1010.24$25.7M
2026-02-17Hsing Michael
CEO
Sold31,560$1171.17$37.0M
2026-02-13Hsing Michael
CEO
Sold31,988$1188.99$38.0M
2026-02-12Hsing Michael
CEO
Sold32,666$1141.33$37.3M
2026-02-10Xiao Deming
EVP, Global Operations
Sold22,875$1171.16$26.8M
2026-02-10Tseng Saria
EVP & General Counsel
Sold22,875$1171.16$26.8M
2026-02-10Sciammas Maurice
EVP, WW Sales & Marketing
Sold22,875$1171.16$26.8M
2026-02-10BLEGEN THEODORE
EVP and CFO
Sold21,725$1171.16$25.4M
2026-02-10Hsing Michael
CEO
Sold54,923$1171.16$64.3M
2025-12-02BLEGEN THEODORE
EVP and CFO
Sold1,984$909.00$1.8M
2025-11-28Tseng Saria
EVP & General Counsel
Sold13,891$904.24$12.6M
2025-11-28Tseng Saria
EVP & General Counsel
Sold18,096$926.25$16.8M
2025-11-25Sciammas Maurice
EVP, WW Sales & Marketing
Sold3,976$895.23$3.6M
2025-11-20Sciammas Maurice
EVP, WW Sales & Marketing
Sold25,785$881.81$22.7M
2025-11-20Sciammas Maurice
EVP, WW Sales & Marketing
Sold2,988$871.07$2.6M
2025-11-13Hsing Michael
CEO
Sold36,889$958.25$35.3M

Showing the 25 most recent of 43 filings for MPWR in the last two years. The full history, the price chart with every buy and sell marked, and daily updates are in the members browser.

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Every insider buy and sell for MPWR plotted on the price, the full two-year history, cluster scores and daily updates — in the members area, $29/month. A free quarterly sample of the whole dataset needs no account.

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Data from the SEC EDGAR ownership filings, refreshed daily. Only open-market purchases (transaction code P) and sales of $1M or more are shown; grants, option exercises and tax withholding are excluded because they run on schedules set years earlier. Not investment advice.