Monolithic Power Systems, Inc.(MPWR)Company Profile & BusinessNASDAQ
Business, leadership and ownership
Company Profile
Business overview, scale, and footprint
Business Overview
Monolithic Power Systems, Inc. provides semiconductor-based power electronics solutions in China, Taiwan, South Korea, Southeast Asia, Europe, the United States, Japan, and internationally. The company offers direct current (DC) to DC solutions to convert and control voltages within a range of electronic systems, such as cloud-based and on-premises CPU servers and workstations, AI systems, memory, storage solutions, notebooks, infotainment, power sources, home appliances, network infrastructure, and satellite communications. It also provides alternating current (AC) to DC; driver metal-oxide-semiconductor field-effect transistors; power management integrated circuits (ICs); and current limit switch and lighting control products.
The company serves storage and computing, enterprise data, automotive, communications, consumer, and industrial end markets through third-party distributors and value-added resellers. Monolithic Power Systems, Inc. was incorporated in 1997 and is based in West Palm Beach, Florida.
Insider Transactions
Open-market activity and option exercises
Insider Activity Summary
Insider trading activity for Monolithic Power Systems, Inc. (MPWR) between Jun 28, 2024 and Sep 28, 2026 consists of 247 total transactions. Among these, company executives and board members conducted 172 buys (totaling 2,356,687 shares) and 75 sells (totaling 163,078 shares). This activity resulted in a net change of 2,193,609 shares, reflecting net buying interest with an estimated net sales value of $209.29M.
247 insider transactions found. Showing 10 of 247 transactions.
| Insider Name | Relation to Company | Shares Changed | Price | Transaction Date |
|---|---|---|---|---|
| Hsing Michael | CEO | -596 | $1323.31 | Sep 28, 2026 |
| Hsing Michael | CEO | -2,121 | $1328.54 | Sep 28, 2026 |
| Hsing Michael | CEO | -1,111 | $1333.34 | Sep 28, 2026 |
| Hsing Michael | CEO | -2,949 | $1338.66 | Sep 28, 2026 |
| Hsing Michael | CEO | -5,783 | $1343.76 | Sep 28, 2026 |
| Hsing Michael | CEO | -6,343 | $1347.15 | Sep 28, 2026 |
| Hsing Michael | CEO | -130 | $1356.94 | Sep 28, 2026 |
| Hsing Michael | CEO | -10,967 | $1351.43 | Sep 28, 2026 |
| HSING MICHAEL R | Chief Executive Officer | 30,000 | $40.35 | Sep 28, 2026 |
| TSENG SARIA H | General Counsel | 2,000 | N/A | Aug 31, 2026 |
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