Monolithic Power Systems (NASDAQ:MPWR) EVP Sells $12,860,500.00 in Stock

Posted by Stanley Muller on Jun 1st, 2026

Monolithic Power Systems, Inc. (NASDAQ:MPWR – Get Free Report) EVP Saria Tseng sold 7,565 shares of the company’s stock in a transaction that occurred on Wednesday, May 27th. The shares were sold at an average price of $1,700.00, for a total value of $12,860,500.00. Following the completion of the transaction, the executive vice president directly owned 144,218 shares of the company’s stock, valued at approximately $245,170,600. This trade represents a 4.98% decrease in their position. The transaction was disclosed in a filing with the Securities & Exchange Commission, which is available at the SEC website.

Saria Tseng also recently made the following trade(s):

On Friday, May 22nd, Saria Tseng sold 5,000 shares of Monolithic Power Systems stock. The stock was sold at an average price of $1,586.43, for a total value of $7,932,150.00.
On Wednesday, April 8th, Saria Tseng sold 8,963 shares of Monolithic Power Systems stock. The stock was sold at an average price of $1,305.22, for a total value of $11,698,686.86.
On Monday, April 6th, Saria Tseng sold 7,636 shares of Monolithic Power Systems stock. The stock was sold at an average price of $1,167.95, for a total value of $8,918,466.20.
On Wednesday, April 1st, Saria Tseng sold 1,400 shares of Monolithic Power Systems stock. The stock was sold at an average price of $1,133.52, for a total value of $1,586,928.00.
On Monday, March 30th, Saria Tseng sold 25,674 shares of Monolithic Power Systems stock. The stock was sold at an average price of $1,010.50, for a total value of $25,943,577.00.

Monolithic Power Systems Stock Performance

Shares of MPWR opened at $1,566.21 on Monday. Monolithic Power Systems, Inc. has a 1 year low of $643.36 and a 1 year high of $1,714.09. The stock has a 50 day simple moving average of $1,411.52 and a 200-day simple moving average of $1,163.08. The stock has a market cap of $76.95 billion, a PE ratio of 112.92, a PEG ratio of 2.80 and a beta of 1.69.

Monolithic Power Systems (NASDAQ:MPWR – Get Free Report) last issued its earnings results on Thursday, April 30th. The semiconductor company reported $5.10 earnings per share (EPS) for the quarter, topping analysts’ consensus estimates of $4.90 by $0.20. Monolithic Power Systems had a return on equity of 19.58% and a net margin of 22.84%.The business had revenue of $804.19 million during the quarter, compared to analysts’ expectations of $781.93 million. During the same period in the prior year, the firm posted $4.04 EPS. Monolithic Power Systems’s quarterly revenue was up 26.1% compared to the same quarter last year. On average, sell-side analysts forecast that Monolithic Power Systems, Inc. will post 20.13 EPS for the current fiscal year.

Analyst Upgrades and Downgrades

A number of equities analysts have recently issued reports on MPWR shares. Zacks Research cut Monolithic Power Systems from a “strong-buy” rating to a “hold” rating in a report on Friday, April 10th. William Blair reissued an “outperform” rating on shares of Monolithic Power Systems in a report on Thursday, March 5th. Needham & Company LLC raised their price target on 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. Citigroup reaffirmed a “buy” rating on shares of Monolithic Power Systems in a report on Friday, May 1st. Finally, Weiss Ratings downgraded Monolithic Power Systems from a “hold (c+)” rating to a “hold (c)” rating in a research report on Thursday. Twelve analysts have rated the stock with a Buy rating and three have assigned a Hold rating to the company. According to MarketBeat, the stock has an average rating of “Moderate Buy” and a consensus target price of $1,599.17.

Read Our Latest Analysis on MPWR

Key Headlines Impacting Monolithic Power Systems

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

Negative Sentiment: EVP Saria Tseng disclosed a sale of 7,565 shares at an average price of $1,700, trimming her position by about 5%. Insiders at Monolithic Power have been actively selling lately, which can signal that management sees less near-term upside. Article Title
Negative Sentiment: Director Jeff Zhou also sold 486 shares at $1,680, continuing a recent pattern of insider selling at MPWR. Multiple insider sales in a short period often pressure sentiment, even if the amounts are small relative to total holdings. Article Title
Negative Sentiment: Separate coverage noted that insiders have sold roughly $515 million of Monolithic Power stock, reinforcing concerns that the shares may be getting expensive after a strong run. Article Title
Negative Sentiment: GuruFocus said MPWR still looks overvalued despite the recent rally, adding to valuation anxiety as the stock trades near its highs. Article Title

Institutional Trading of Monolithic Power Systems

Several large investors have recently made changes to their positions in MPWR. Brighton Jones LLC grew its holdings in shares of Monolithic Power Systems by 46.0% during the fourth quarter. Brighton Jones LLC now owns 635 shares of the semiconductor company’s stock worth $376,000 after purchasing an additional 200 shares during the last quarter. Empowered Funds LLC grew its holdings in shares of Monolithic Power Systems by 3.1% during the first quarter. Empowered Funds LLC now owns 5,325 shares of the semiconductor company’s stock worth $3,088,000 after purchasing an additional 161 shares during the last quarter. NewEdge Advisors LLC grew its holdings in shares of Monolithic Power Systems by 3.5% during the second quarter. NewEdge Advisors LLC now owns 9,383 shares of the semiconductor company’s stock worth $6,863,000 after purchasing an additional 314 shares during the last quarter. Treasurer of the State of North Carolina boosted its position in Monolithic Power Systems by 35.2% in the 2nd quarter. Treasurer of the State of North Carolina now owns 35,789 shares of the semiconductor company’s stock valued at $26,175,000 after buying an additional 9,315 shares during the last quarter. Finally, Globeflex Capital L P bought a new position in Monolithic Power Systems in the 2nd quarter valued at $347,000. Institutional investors own 93.46% of the company’s stock.

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.

Insider Buying and Selling by Quarter for Monolithic Power Systems (NASDAQ:MPWR)

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