AlphaQuest LLC Raises Stock Position in Monolithic Power Systems, Inc. $MPWR

AlphaQuest LLC grew its stake in Monolithic Power Systems, Inc. (NASDAQ:MPWR) by 738.9% in the 3rd quarter, according to its most recent filing with the Securities and Exchange Commission. The institutional investor owned 604 shares of the semiconductor company’s stock after purchasing an additional 532 shares during the quarter. AlphaQuest LLC’s holdings in Monolithic Power Systems were worth $556,000 at the end of the most recent quarter.

Other large investors have also recently modified their holdings of the company. Arizona State Retirement System increased its position in shares of Monolithic Power Systems by 1.1% during the third quarter. Arizona State Retirement System now owns 14,117 shares of the semiconductor company’s stock valued at $12,997,000 after buying an additional 158 shares during the period. AE Wealth Management LLC bought a new stake in Monolithic Power Systems during the 3rd quarter valued at approximately $1,121,000. Annis Gardner Whiting Capital Advisors LLC grew its holdings in shares of Monolithic Power Systems by 745.2% during the 3rd quarter. Annis Gardner Whiting Capital Advisors LLC now owns 617 shares of the semiconductor company’s stock worth $568,000 after acquiring an additional 544 shares during the period. New York State Common Retirement Fund raised its position in shares of Monolithic Power Systems by 14.1% in the 3rd quarter. New York State Common Retirement Fund now owns 26,706 shares of the semiconductor company’s stock worth $24,587,000 after acquiring an additional 3,300 shares in the last quarter. Finally, Ballentine Partners LLC lifted its stake in shares of Monolithic Power Systems by 4.5% in the 3rd quarter. Ballentine Partners LLC now owns 555 shares of the semiconductor company’s stock valued at $511,000 after purchasing an additional 24 shares during the period. Institutional investors own 93.46% of the company’s stock.

Key Monolithic Power Systems News

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

• Positive Sentiment: Stifel raised its price target to $1,300 and maintained a “buy” rating, signaling continued analyst confidence and potential upside. Stifel price target raise
• Positive Sentiment: Company narrative emphasizes growth drivers in AI, data centers and automotive power electronics, plus a plan to return cash to shareholders — factors that support longer-term revenue and margin expansion. Yahoo Finance: AI, auto growth, returning cash
• Neutral Sentiment: Multiple earnings previews (Benzinga, Zacks, MSN) highlight upcoming Q4 results and analyst metric checks — these set expectations but outcomes will drive near-term moves. Benzinga earnings preview
• Neutral Sentiment: Analyst previews from Zacks note the sector tailwinds (AI, data center, auto) that could lift the quarter — supportive context but dependent on Monolithic’s execution vs. expectations. Zacks: sector outlook
• Negative Sentiment: CFO Theodore Blegen sold 3,000 shares (~$3.4M), reducing his stake ~4.4% — an insider sale that can trigger short-term selling pressure or investor concern about near-term liquidity needs. SEC filing: insider sale

Insiders Place Their Bets

In other Monolithic Power Systems news, EVP Maurice Sciammas sold 27,966 shares of the stock in a transaction on Wednesday, November 19th. The stock was sold at an average price of $881.66, for a total transaction of $24,656,503.56. Following the sale, the executive vice president directly owned 148,306 shares in the company, valued at approximately $130,755,467.96. This trade represents a 15.87% decrease in their position. The sale was disclosed in a document filed with the SEC, which is accessible through this hyperlink. Also, EVP Saria Tseng sold 20,000 shares of the business’s stock in a transaction on Wednesday, November 26th. The stock was sold at an average price of $926.47, for a total value of $18,529,400.00. Following the completion of the transaction, the executive vice president owned 187,331 shares of the company’s stock, valued at $173,556,551.57. This represents a 9.65% decrease in their position. The SEC filing for this sale provides additional information. Insiders sold a total of 69,776 shares of company stock worth $63,489,045 in the last three months. Corporate insiders own 3.40% of the company’s stock.

Wall Street Analyst Weigh In

Several brokerages recently weighed in on MPWR. Wolfe Research set a $1,200.00 price target on Monolithic Power Systems and gave the stock an “outperform” rating in a research note on Tuesday, October 14th. Rosenblatt Securities boosted their target price on shares of Monolithic Power Systems from $800.00 to $950.00 and gave the company a “neutral” rating in a report on Friday, October 31st. Wells Fargo & Company increased their price target on shares of Monolithic Power Systems from $1,125.00 to $1,200.00 and gave the stock an “overweight” rating in a research note on Monday, January 26th. Weiss Ratings reissued a “buy (b-)” rating on shares of Monolithic Power Systems in a research report on Friday, December 26th. Finally, Citigroup upped their price objective on shares of Monolithic Power Systems from $1,100.00 to $1,250.00 and gave the stock a “buy” rating in a report on Monday, November 3rd. One investment analyst has rated the stock with a Strong Buy rating, twelve have assigned a Buy rating and one has assigned a Hold rating to the stock. Based on data from MarketBeat.com, Monolithic Power Systems presently has a consensus rating of “Buy” and an average price target of $1,152.08.

Monolithic Power Systems Stock Performance

Shares of MPWR stock opened at $1,136.83 on Thursday. The company has a market capitalization of $54.47 billion, a price-to-earnings ratio of 29.03, a price-to-earnings-growth ratio of 3.27 and a beta of 1.45. Monolithic Power Systems, Inc. has a one year low of $438.86 and a one year high of $1,226.30. The company’s 50-day moving average is $993.76 and its 200 day moving average is $927.63.

Monolithic Power Systems Announces Dividend

The firm also recently disclosed a quarterly dividend, which was paid on Thursday, January 15th. Investors of record on Wednesday, December 31st were given a $1.56 dividend. The ex-dividend date of this dividend was Wednesday, December 31st. This represents a $6.24 annualized dividend and a yield of 0.5%. Monolithic Power Systems’s dividend payout ratio is 15.93%.

Monolithic Power Systems Profile

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.