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Monolithic Power Systems Inc Stock: price and insider trades · United States
Monolithic Power Systems Inc: what insiders have been doing
This page follows insider dealings at Monolithic Power Systems Inc as filed with SEC (Form 4), a company from the Technology sector based in San Jose, United States. The group dates from 1997. From 18 October 2025 to 18 October 2026, the disclosure feed for Monolithic Power Systems Inc logged 160 filings by 17 insiders.
Only sales appear on the open market, 124 sales in all totalling €269.2M, filed by 8 insiders. Biggest ticket of the year: €54.6M, sold by Hsing Michael and made public on 10 February 2026.
Filings reach the SEC (Form 4) feed a median of 2 days after the trade. Section 16 rules allow two business days to file each Form 4. Keep in mind that insiders sell for many reasons unrelated to the outlook, from tax bills to estate planning.
For context, the typical company on the same exchange (median of 5,812 companies) published 19 filings over the same period, against 160 filings here. Over the whole record (from 2016), the tally stands at no purchases and 485 sales. The 10-K for the year ended 31 December 2025 shows 2.79 bn USD of revenue and 621.5 m USD of net income and a dividend of 6.24 USD per share.
For comparison within the same sector, see the insider buying recorded at Core Scientific, Inc./tx and Gitlab Inc. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.
Insider Decl.
594
Thresholds
n/a
Buy Volume
n/a
n/a
Sell Volume
€805M
485 ops. · all time
Who traded when
BuySaleBlegen Theodore55 sales
Tseng Saria39 sales
Maurice Sciammas32 sales
Michael Hsing20 sales
Kuo Wei Herbert Chang7 sales
Robert W. Dean II4 sales
+5 other insiders
Analyst consensus: bullish or bearish?
Analysts rate Monolithic Power Systems Inc Strong Buy (bullish), based on 15 analysts. Average price target: US$1,839.80.
This score ranks the purchase within its own market. A position size is suggested only on the venues of the backtested strategy universe; elsewhere, signals stay on watch. Not investment advice.
Fundamental score
Ranked 5,932 of 24,158 companies
64.4
score / 100
Value42
Quality87
FCF yld1.1%
Earn yld1.0%
EV/EBITDA·
ROE22%
Gross mgn55%
Net mgn22%
Debt/EBITDA0.0x
Pillars2/3
Transparent value + quality ranking, distinct from the insider signal.
Financial data
as of FY 2025FY ended December 2025 · cache
US$1,243.11
Analyst consensus
15 analystsStrong buy
US$1,575.00Target US$1,839.80(+48%)US$2,100.00
Income statement
RevenueUS$2.8B
Gross profitUS$1.5B55% margin
EBITDAUS$781.1M28% margin
Net incomeUS$621.5M24.5% margin
Valuation
PER (trailing)75.6x
PER (forward)35.5x
P/Book15.7x
Beta1.68
Balance sheet & cash
Market capUS$61.1B
Total debtUS$20M
Free Cash FlowUS$663.3M
Debt / Equity0%
Profitability & ownership
ROE22.0%
ROA13.6%
% insiders3.6%
% institutions100.5%
Last declaration on 30 September 2026
Declarations594 total
596 shares@ US$1,323.312.0% of flowCommon StockSEC:0001214659-26-012375:0
6,343 shares@ US$1,347.1521.2% of flowCommon StockSEC:0001214659-26-012375:5
10,967 shares@ US$1,351.4336.7% of flowCommon StockSEC:0001214659-26-012375:6
2,121 shares@ US$1,328.547.0% of flowCommon StockSEC:0001214659-26-012375:1
1,111 shares@ US$1,333.343.7% of flowCommon StockSEC:0001214659-26-012375:2
2,949 shares@ US$1,338.669.8% of flowCommon StockSEC:0001214659-26-012375:3
5,783 shares@ US$1,343.7619.3% of flowCommon StockSEC:0001214659-26-012375:4
130 shares@ US$1,356.940.4% of flowCommon StockSEC:0001214659-26-012375:7
30,000 shares@ US$1,344.96832.48% mcap100.0% of flowCommonSEC144:0001950047-26-009850
5 shares0Common StockSEC:0001214659-26-010932:1
32 shares@ US$1,297.720.0025% mcap17.1% of flowCommon StockSEC:0001214659-26-010932:0
50 shares@ US$1,281.570.0038% mcap47.2% of flowCommon StockSEC:0001214659-26-010853:0
32 shares@ US$1,297.71560.0025% mcap17.1% of flowCommon StockSEC144:0001280452-26-000017
6 shares@ US$1,413.640.0005% mcap3.5% of flowCommon StockSEC:0001214659-26-010630:0
6 shares@ US$1,354.74170.0005% mcap3.4% of flowCommon StockSEC144:0001280452-26-000014
50 shares@ US$1,420.000.0043% mcap52.8% of flowCommon StockSEC:0001214659-26-010101:0
100 shares@ US$1,420.000.0002% mcap100.0% of flowCommonSEC144:0001969223-26-000881
25,000 shares0Common StockSEC:0001214659-26-009744:1
105 shares@ US$1,344.270.0086% mcap58.9% of flowCommon StockSEC:0001214659-26-009739:0
25,000 shares0Common StockSEC:0001214659-26-009744:0
105 shares@ US$1,344.2650.0086% mcap100.0% of flowCommonSEC144:0001950047-26-007680
30 shares@ US$1,343.940.0025% mcap0.2% of flowCommon StockSEC:0001214659-26-009676:0
1,359 shares0Common StockSEC:0001214659-26-009117:0
5,640 shares@ US$1,352.950.47% mcap37.6% of flowCommon StockSEC:0001214659-26-008703:8
50 shares@ US$1,359.360.0042% mcap0.3% of flowCommon StockSEC:0001214659-26-008703:9
25 of 594 declarations
About Monolithic Power Systems Inc
Monolithic Power Systems, Inc. (MPWR) is a US-based semiconductor company listed on the Nasdaq Global Select Market on the NYSE/NASDAQ ecosystem in the United States. The company is best known for high-performance power management and power electronics solutions delivered through an asset-light, fabless model: MPS designs and markets the chips, while third parties handle manufacturing and assembly. This structure allows the company to keep capital intensity relatively low and concentrate on engineering, system architecture, and product innovation. ([monolithicpower.com](https://www.monolithicpower.com/media/investor-relations/filings/MPS_2024_Form_10-K.pdf))
Founded in 1997 by Michael Hsing, who remains the company’s CEO, MPS has built its identity around three core strengths: deep system-level knowledge, strong semiconductor design expertise, and proprietary technologies in semiconductor processes, system integration, and packaging. The company is headquartered in the San Jose/Silicon Valley area, giving it access to one of the world’s deepest talent pools for analog and power semiconductors. ([monolithicpower.com](https://www.monolithicpower.com/media/investor-relations/filings/MPS_2024_Form_10-K.pdf))
Read moreShow less
Its product portfolio spans highly integrated power-management ICs and power-conversion solutions used across storage and computing, enterprise data, telecommunications infrastructure, automotive, industrial, consumer, and other end markets. MPS emphasizes compact, reliable, energy-efficient solutions that reduce system complexity and total material usage. In practice, that means a broad mix of regulators, converters, power stages, and application-specific solutions designed for increasingly demanding end systems, especially in cloud infrastructure and next-generation vehicles. ([monolithicpower.com](https://www.monolithicpower.com/media/investor-relations/filings/MPS_2024_Form_10-K.pdf))
From a competitive standpoint, MPWR occupies a premium niche in the power semiconductor landscape. Rather than competing primarily on commodity components, it focuses on differentiated, highly integrated solutions where performance, efficiency, and system-level design matter. The company has stated that it targets market areas where it believes it can outperform the broader semiconductor industry over the long term. A notable aspect of its business model is geographic concentration: most revenue is generated through direct or indirect sales to customers in Asia, reflecting its deep integration into Asian electronics supply chains. ([monolithicpower.com](https://www.monolithicpower.com/media/investor-relations/filings/MPS_2024_Form_10-K.pdf))
Recent results reinforce the company’s growth profile. In 2025, MPS reported full-year revenue of $2.79 billion, up 26.4% year over year, with automotive revenue up 43.1% and communications revenue up 36.8%. Management also highlighted continued strength in power solutions for AI and server applications, alongside a solid margin structure. For investors, MPWR stands out as a high-quality US semiconductor franchise with exposure to AI infrastructure, electrification, and advanced power design, while still carrying the cyclical and customer-concentration risks typical of the sector. ([monolithicpower.com](https://www.monolithicpower.com/media/investor-relations/press-releases/Q4_2025_MPS_Earnings_Commentary.pdf))
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