Price$1477.77+379.10 (+34.50%)
2026-03-042026-06-05
News · 26 weeks76-41%
2025-12-142026-06-07
Mix3690d
- Insider23(64%)
- SEC Filings6(17%)
- Other5(14%)
- Earnings2(6%)
Latest news
25 items- INSIDEREVP, WW Sales & Marketing Sciammas Maurice sold $46,018 worth of shares (30 units at $1,533.95) as part of a pre-agreed trading plan (SEC Form 4)4 - MONOLITHIC POWER SYSTEMS INC (0001280452) (Issuer)
- INSIDEREVP, WW Sales & Marketing Sciammas Maurice gifted 12,472 shares (SEC Form 4)4 - MONOLITHIC POWER SYSTEMS INC (0001280452) (Issuer)
- INSIDEREVP & General Counsel Tseng Saria sold $12,860,500 worth of shares (7,565 units at $1,700.00), decreasing direct ownership by 5% to 144,218 units (SEC Form 4)4 - MONOLITHIC POWER SYSTEMS INC (0001280452) (Issuer)
- SECSEC Form SD filed by Monolithic Power Systems Inc.SD - MONOLITHIC POWER SYSTEMS INC (0001280452) (Filer)
- INSIDERInterim CFO Dean Robert W Ii sold $36,290 worth of shares (22 units at $1,649.56), decreasing direct ownership by 0.37% to 5,878 units (SEC Form 4) (for withholding tax)4 - MONOLITHIC POWER SYSTEMS INC (0001280452) (Issuer)
- INSIDERDirector Zhou Jeff sold $816,480 worth of shares (486 units at $1,680.00), decreasing direct ownership by 11% to 3,800 units (SEC Form 4)4 - MONOLITHIC POWER SYSTEMS INC (0001280452) (Issuer)
- INSIDEREVP & General Counsel Tseng Saria gifted 200 shares and sold $7,932,150 worth of shares (5,000 units at $1,586.43), decreasing direct ownership by 3% to 151,783 units (SEC Form 4)4 - MONOLITHIC POWER SYSTEMS INC (0001280452) (Issuer)
- INSIDERCEO Hsing Michael sold $59,310,169 worth of shares (40,000 units at $1,482.75), decreasing direct ownership by 5% to 848,263 units (SEC Form 4)4 - MONOLITHIC POWER SYSTEMS INC (0001280452) (Issuer)
- INSIDERInterim CFO Dean Robert W Ii sold $6,253 worth of shares (4 units at $1,563.28), decreasing direct ownership by 0.07% to 5,900 units (SEC Form 4) (tax withholding)4 - MONOLITHIC POWER SYSTEMS INC (0001280452) (Issuer)
- INSIDEREVP, WW Sales & Marketing Sciammas Maurice sold $18,736,850 worth of shares (12,000 units at $1,561.40) as part of a pre-agreed trading plan, decreasing direct ownership by 7% to 166,644 units (SEC Form 4)4 - MONOLITHIC POWER SYSTEMS INC (0001280452) (Issuer)
- INSIDEREVP, WW Sales & Marketing Sciammas Maurice gifted 1,563 shares and received a gift of 1,563 shares (SEC Form 4)4 - MONOLITHIC POWER SYSTEMS INC (0001280452) (Issuer)
- INSIDERInterim CFO Dean Robert W Ii disposed of 2,156 shares, decreasing direct ownership by 27% to 5,904 units (SEC Form 4)4 - MONOLITHIC POWER SYSTEMS INC (0001280452) (Issuer)
- INSIDERDirector Elmiger Eugen J sold $19,019,482 worth of shares (12,000 units at $1,584.96), decreasing direct ownership by 69% to 5,402 units (SEC Form 4)4 - MONOLITHIC POWER SYSTEMS INC (0001280452) (Issuer)
- INSIDEREVP, Global Operations Xiao Deming sold $49,636,560 worth of shares (30,000 units at $1,654.55), decreasing direct ownership by 13% to 205,959 units (SEC Form 4)4 - MONOLITHIC POWER SYSTEMS INC (0001280452) (Issuer)
- INSIDERDirector Wynne Eileen sold $530,198 worth of shares (335 units at $1,582.68), decreasing direct ownership by 25% to 1,007 units (SEC Form 4)4 - MONOLITHIC POWER SYSTEMS INC (0001280452) (Issuer)
- INSIDERDirector Zhou Jeff sold $2,434,283 worth of shares (1,514 units at $1,607.85), decreasing direct ownership by 26% to 4,286 units (SEC Form 4)4 - MONOLITHIC POWER SYSTEMS INC (0001280452) (Issuer)
- SECSEC Form 144 filed by Monolithic Power Systems Inc.144 - MONOLITHIC POWER SYSTEMS INC (0001280452) (Subject)
- INSIDEREVP, WW Sales & Marketing Sciammas Maurice sold $601,848 worth of shares (380 units at $1,583.81) (SEC Form 4)4 - MONOLITHIC POWER SYSTEMS INC (0001280452) (Issuer)
- INSIDEREVP, WW Sales & Marketing Sciammas Maurice sold $47,662 worth of shares (30 units at $1,588.73) as part of a pre-agreed trading plan (SEC Form 4)4 - MONOLITHIC POWER SYSTEMS INC (0001280452) (Issuer)
- SECSEC Form 10-Q filed by Monolithic Power Systems Inc.10-Q - MONOLITHIC POWER SYSTEMS INC (0001280452) (Filer)
- PRMonolithic Power Systems Prevails in Patent Infringement Lawsuit Brought by Bel Power Solutions in West Texas, with Bel Power Solutions Paying CostsSCHAFFHAUSEN, Switzerland, April 30, 2026 (GLOBE NEWSWIRE) -- Monolithic Power Systems, Inc. (MPS) (NASDAQ:MPWR), a fabless global company that provides high-performance, semiconductor-based power electronics solutions, announced today the resolution in MPS's favor of a patent infringement lawsuit filed by Bel Power Solutions, Inc. ("Bel Power") in the U.S. District Court for the Western District of Texas. As part of the case dismissal, Bel Power agreed to pay MPS's court costs in the amount of $50,000. Bel Power had asserted claims of patent infringement against MPS related to six semiconductor patents owned by Bel Power. The Western District Court of Texas ruled in MPS's favor by granti
- SECMonolithic Power Systems Inc. filed SEC Form 8-K: Results of Operations and Financial Condition, Financial Statements and Exhibits8-K - MONOLITHIC POWER SYSTEMS INC (0001280452) (Filer)
- PRMonolithic Power Systems Reports First Quarter Results on April 30, 2026SCHAFFHAUSEN, Switzerland, April 30, 2026 (GLOBE NEWSWIRE) -- Monolithic Power Systems, Inc. ("MPS") reported its results after market close on April 30, 2026 and will host a question-and-answer webinar at 2:00 p.m. PT / 5:00 p.m. ET. The webinar can be accessed from the Investor Relations section of the MPS website at www.monolithicpower.com. Q1 2026 Financial Summary(Unaudited) GAAP Q1'26 Q4'25 Q1'25 QoQ Change YoY ChangeRevenue ($M) $804.2 $751.2 $637.6 7.1% 26.1%Gross Margin 55.3% 55.2% 55.4% 0.1 pts (0.1) ptsOpex ($M) $203.9 $214.3 $184.5 (4.9%) 10.5%Operating Margin 30.0% 26.6% 26.5% 3.4 pts 3.5 ptsNet income ($M) $193.2 $171.7 $135.1 12.6% 43.1%Diluted EPS $3.
- SECSEC Form DEFA14A filed by Monolithic Power Systems Inc.DEFA14A - MONOLITHIC POWER SYSTEMS INC (0001280452) (Filer)
- SECSEC Form DEF 14A filed by Monolithic Power Systems Inc.DEF 14A - MONOLITHIC POWER SYSTEMS INC (0001280452) (Filer)
MPWR FAQ
7 questionsWhat does Monolithic Power Systems Inc. do?
Monolithic Power Systems, Inc. designs, develops, and markets integrated power semiconductor solutions and power delivery architectures for computing and storage, automotive, industrial, communications, and consumer applications markets. It offers direct current (DC) to DC integrated circuits (ICs) that are used to convert and control voltages of various electronic systems, such as portable electronic devices, wireless LAN access points, computers and notebooks, monitors, infotainment applications, and medical equipment. The company also provides lighting control ICs for backlighting that are...Where does MPWR stock trade?
Monolithic Power Systems Inc. (MPWR) is listed on NASDAQ.What sector and industry is MPWR in?
Monolithic Power Systems Inc. operates in the Technology sector, Semiconductors industry.When did Monolithic Power Systems Inc. go public?
Monolithic Power Systems Inc. (MPWR) completed its IPO in 2004.What are analysts saying about MPWR?
Monolithic Power Systems Inc. has had 8 recent analyst actions on file. The most recent action was from Wells Fargo: Overweight on 2026-01-15.What companies are similar to MPWR?
Notable peers in the same industry include TXN (Texas Instruments Incorporated), ADI (Analog Devices Inc.), STM (STMicroelectronics N.V.), ON (ON Semiconductor Corporation), MXIM (Maxim Integrated Products, Inc.). Compare MPWR side-by-side with any of them on Quantisnow.How can I track MPWR on Quantisnow?
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