Monolithic Power Systems (NASDAQ:MPWR) EVP Maurice Sciammas Sells 30 Shares

May 7, 2026 by InsiderTrades.com

Key Points

Maurice Sciammas sold 380 shares of Monolithic Power Systems on May 5 at an average price of $1,583.81 for $601,847.80, leaving him with 919 shares (a 29.25% reduction); he has made multiple recent sales, including a large 22,875‑share sale on Feb. 6.
Monolithic Power Systems posted strong Q1 results, beating estimates with $5.10 EPS and $804.2M revenue (≈26% YoY growth), prompting analyst price‑target hikes and the stock trading near its 12‑month high amid AI/semiconductor demand.

Monolithic Power Systems, Inc. (NASDAQ:MPWR - Get Free Report) EVP Maurice Sciammas sold 30 shares of the company's stock in a transaction on Monday, May 4th. The stock was sold at an average price of $1,588.73, for a total transaction of $47,661.90. Following the transaction, the executive vice president owned 1,209 shares of the company's stock, valued at approximately $1,920,774.57. The trade was a 2.42% decrease in their position. The sale was disclosed in a legal filing with the SEC, which is available through this link. The transaction was executed under a pre-arranged Rule 10b5-1 trading plan.

Monolithic Power Systems: AI Stock Beat, Raised and Upgraded Post-Earnings

Maurice Sciammas also recently made the following trade(s):

On Tuesday, May 5th, Maurice Sciammas sold 380 shares of Monolithic Power Systems stock. The stock was sold at an average price of $1,583.81, for a total transaction of $601,847.80.
On Wednesday, April 1st, Maurice Sciammas sold 30 shares of Monolithic Power Systems stock. The shares were sold at an average price of $1,116.44, for a total transaction of $33,493.20.
On Friday, March 20th, Maurice Sciammas sold 30 shares of Monolithic Power Systems stock. The shares were sold at an average price of $1,095.07, for a total transaction of $32,852.10.
On Wednesday, February 11th, Maurice Sciammas sold 200 shares of Monolithic Power Systems stock. The shares were sold at an average price of $1,179.97, for a total transaction of $235,994.00.
On Friday, February 6th, Maurice Sciammas sold 22,875 shares of Monolithic Power Systems stock. The shares were sold at an average price of $1,171.16, for a total transaction of $26,790,285.00.

Monolithic Power Systems Trading Up 4.0%

Shares of NASDAQ MPWR opened at $1,652.35 on Thursday. The stock has a market cap of $81.18 billion, a price-to-earnings ratio of 119.13, a PEG ratio of 3.27 and a beta of 1.74. Monolithic Power Systems, Inc. has a 52 week low of $613.00 and a 52 week high of $1,662.00. The company's 50-day moving average price is $1,245.48 and its 200 day moving average price is $1,095.91.

Monolithic Power Systems Is Surging—Has Valuation Caught Up?

Monolithic Power Systems (NASDAQ:MPWR - Get Free Report) last issued its quarterly earnings data on Thursday, April 30th. The semiconductor company reported $5.10 EPS for the quarter, beating analysts' consensus estimates of $4.90 by $0.20. The firm had revenue of $804.19 million for the quarter, compared to analysts' expectations of $781.93 million. Monolithic Power Systems had a net margin of 22.84% and a return on equity of 19.58%. The firm's revenue was up 26.1% on a year-over-year basis. During the same period in the prior year, the company earned $4.04 EPS. As a group, research analysts expect that Monolithic Power Systems, Inc. will post 17.39 earnings per share for the current year.

Wall Street Analysts Forecast Growth

A number of equities research analysts recently commented on MPWR shares. Citigroup reissued a "buy" rating on shares of Monolithic Power Systems in a research note on Friday, May 1st. Raymond James Financial restated an "outperform" rating and issued a $1,800.00 target price on shares of Monolithic Power Systems in a report on Friday, May 1st. William Blair restated an "outperform" rating on shares of Monolithic Power Systems in a report on Thursday, March 5th. Needham & Company LLC upped their target price on shares of Monolithic Power Systems from $1,300.00 to $1,750.00 and gave the company a "buy" rating in a report on Friday, May 1st. Finally, TD Cowen upped their target price on shares of Monolithic Power Systems from $1,550.00 to $1,850.00 and gave the company a "buy" rating in a report on Friday, May 1st. Twelve equities research analysts have rated the stock with a Buy rating and three have given a Hold rating to the company. Based on data from MarketBeat, Monolithic Power Systems has a consensus rating of "Moderate Buy" and an average price target of $1,599.17.

Insiders Are Selling These 3 Stocks—Here’s Why

Get Our Latest Analysis on MPWR

Institutional Inflows and Outflows

Several large investors have recently modified their holdings of the stock. Vanguard Group Inc. lifted its holdings in shares of Monolithic Power Systems by 2.3% during the 3rd quarter. Vanguard Group Inc. now owns 6,074,033 shares of the semiconductor company's stock worth $5,591,998,000 after acquiring an additional 134,087 shares during the period. State Street Corp lifted its holdings in shares of Monolithic Power Systems by 2.1% during the 4th quarter. State Street Corp now owns 2,180,419 shares of the semiconductor company's stock worth $1,979,610,000 after acquiring an additional 45,715 shares during the period. Corient Private Wealth LLC lifted its holdings in shares of Monolithic Power Systems by 3,719.6% during the 4th quarter. Corient Private Wealth LLC now owns 2,047,173 shares of the semiconductor company's stock worth $1,855,476,000 after acquiring an additional 1,993,576 shares during the period. Price T Rowe Associates Inc. MD lifted its holdings in shares of Monolithic Power Systems by 7.5% during the 4th quarter. Price T Rowe Associates Inc. MD now owns 1,691,394 shares of the semiconductor company's stock worth $1,533,013,000 after acquiring an additional 117,596 shares during the period. Finally, Invesco Ltd. lifted its holdings in shares of Monolithic Power Systems by 25.9% during the 4th quarter. Invesco Ltd. now owns 1,434,689 shares of the semiconductor company's stock worth $1,300,345,000 after acquiring an additional 295,556 shares during the period. 93.46% of the stock is currently owned by hedge funds and other institutional investors.

Monolithic Power Systems News Roundup

Here are the key news stories impacting Monolithic Power Systems this week:

Positive Sentiment: Company reported stronger-than-expected results and is benefiting from AI-related demand and analyst upgrades — Q1 EPS of $5.10 and revenue of $804.2M beat estimates, revenue grew ~26% YoY, and analysts have raised views and price targets after the report. Monolithic Power Systems: AI Stock Beat, Raised and Upgraded Post-Earnings
Neutral Sentiment: Media coverage highlights a sector rally that includes MPWR (alongside peers such as Microchip), noting the stock's sharp move as investors chase semiconductor and AI exposure. This coverage amplifies momentum but doesn't add new company-specific fundamentals. Microchip Technology and Monolithic Power Systems Shares Skyrocket, What You Need To Know
Negative Sentiment: Director Jeff Zhou executed sizable share sales on May 5–6 (totaling 1,514 shares at ~ $1,587–$1,650), notably reducing his stake — a signal some investors may read as profit-taking. SEC filing: Jeff Zhou SEC Filing
Negative Sentiment: EVP Maurice Sciammas sold shares across May 4–5 (total ~410 shares). One small sale (30 shares) was executed under a pre-arranged Rule 10b5‑1 plan, which reduces the informational signal for that portion, but the overall insider selling adds to near‑term supply. SEC filings: Maurice Sciammas SEC Filing (30 shares) Maurice Sciammas SEC Filing (380 shares)

Monolithic Power Systems Company Profile

(Get Free Report)

Monolithic Power Systems (NASDAQ: MPWR) is a fabless semiconductor company that designs and supplies high-performance power management solutions for a broad range of electronic systems. Founded in 1997 and headquartered in Kirkland, Washington, the company focuses on analog and mixed-signal integrated circuits that convert, regulate and monitor electrical power with an emphasis on efficiency, integration and power density.

MPS's product portfolio includes DC‑DC switching regulators, power modules, power management ICs (PMICs), LED drivers, battery-management ICs, motor drivers, and AC‑DC power solutions.