Monolithic Power Systems Inc. ($MPWR) Stock Forecast: Down 5.1% Today

What is Monolithic Power Systems Inc.?

Monolithic Power Systems (MPWR) specializes in high-performance semiconductor-based power electronics solutions for various markets, including IT, automotive, telecommunications, and consumer electronics. The stock is currently performing well, trading close to its 52-week high.

Why is Monolithic Power Systems Inc. going down?

MPWR stock is down 5.1% on May 29, 2026 18:26

• The downturn in MPWR today may be linked to a significant level of insider selling, involving the interim CFO and a company director, selling substantial amounts. This has possibly sparked concerns among investors regarding the company's future.
• Despite the recent strong Q1 2026 earnings report exceeding expectations and analysts increasing price targets, the continuous insider selling of shares may have hinted at potential overvaluation or internal issues.
• The high P/E ratio of 115.49 and the notable shares sold by insiders, including a recent sale amounting to $7,932,150, could have contributed to a decline in investor confidence, thereby leading to the bearish movement observed in the stock today.

MPWR Price Chart

MPWR Technical Analysis

MPWR News

Monolithic Power Systems interim CFO Dean sells $36,290 in MPWR shares

Monolithic Power Systems' interim CFO, Robert W. Dean II, sold 22 shares of MPWR stock worth $36,290 on May 26, 2026, to cover tax obligations from vested restricted stock units. This transaction occurred while MPWR shares traded near their 52-week high after a 143% return over the past year. The company recently reported strong Q1 2026 earnings, surpassing Wall Street expectations, leading several analysts to raise their price targets.

https://in.investing.com/news/insider-trading-news/monolithic-power-systems-interim-cfo-dean-sells-36290-in-mpwr-shares-93CH-5431121

Monolithic Power (MPWR) interim CFO sells 22 shares to cover taxes

Monolithic Power Systems (MPWR) interim CFO, Robert W. Dean II, sold 22 shares of common stock on May 26, 2026, at a weighted average price of $1,649.56 per share. This sale, totaling $36,290, was conducted to cover tax withholding obligations associated with vested restricted stock units. Following the transaction, Dean directly holds 5,878 common shares and indirectly holds an additional 65 shares.

https://www.stocktitan.net/sec-filings/MPWR/form-4-monolithic-power-systems-inc-insider-trading-activity-cb7587a6a3c2.html

Monolithic Power Systems director Jeff Zhou sells $816,480 in stock By Investing.com

Monolithic Power Systems director Jeff Zhou sold 486 shares of the company's common stock for $816,480 on May 26, 2026, at a price of $1,680.0 per share. This sale comes as the stock trades near its 52-week high, having gained 138% over the past year, and amid an InvestingPro analysis indicating the company is overvalued with a P/E ratio of 115.49. Following the transaction, Mr. Zhou directly owns 3,800 shares.

https://in.investing.com/news/insider-trading-news/monolithic-power-systems-director-jeff-zhou-sells-816480-in-stock-93CH-5429018

Director at Monolithic Power (MPWR) sells 486 shares in open market

Monolithic Power Systems (MPWR) director Jeff Zhou sold 486 shares of common stock in an open-market transaction at $1,680 per share, totaling $816,480. This sale reduces his direct holdings to 3,800 shares. The transaction was filed on a Form 4 and indicates a partial trimming of his position.

https://www.stocktitan.net/sec-filings/MPWR/form-4-monolithic-power-systems-inc-insider-trading-activity-9d805ae25526.html

Monolithic Power Systems Insider Sold Shares Worth $7,932,150, According to a Recent SEC Filing

An insider at Monolithic Power Systems recently sold shares valued at $7,932,150, according to a new SEC filing. The company specializes in high-performance semiconductor-based power electronics solutions for various markets including IT, automotive, telecommunications, and consumer electronics. The article also provides an overview of Monolithic Power Systems' business segments, geographical sales distribution, and analyst consensus.

https://www.marketscreener.com/news/monolithic-power-systems-insider-sold-shares-worth-7-932-150-according-to-a-recent-sec-filing-ce7f5ad3df88f621

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Monolithic Power Systems Inc. Price History

26.04.2026 - MPWR Stock was up 5.0%

• MPWR posted strong Q1 2026 results, surpassing expectations due to the robust demand for its power management chips, notably in AI applications.
• Despite notable insider selling, market sentiment towards MPWR remains positive. Analysts uphold a "Moderate Buy" rating and a consensus target price of $1,599.17.
• The increased stake by ABN Amro Investment Solutions and favorable quarterly earnings likely influenced the bullish movement in MPWR's stock price.
• The company's focus on long-term technological trends and its consistent financial performance amid competition are bolstering investor confidence and driving the stock's upward trend.

18.04.2026 - MPWR Stock was down 5.1%

• MPWR stock responded negatively to the broader downturn in semiconductor stocks post the U.S.-China summit, where semiconductor sales to China were not addressed, resulting in investor disappointment and selling pressure.
• Despite robust earnings and revenue, the stock may have retreated from peak levels as investors reevaluate its valuation and growth prospects in a competitive market.
• The increased stake by iA Global Asset Management Inc. in Q4 might have initially increased confidence in MPWR, but the prevailing market sentiment towards semiconductor stocks overshadowed this positive development.
• The company's involvement in AI data centers and automotive markets, while promising, also exposes it to typical semiconductor-cycle risks, contributing to the bearish movement.

13.04.2026 - MPWR Stock was up 5.4%

• The bullish movement in MPWR can be attributed to the overall positive sentiment in the semiconductor industry, with companies like MPWR benefiting from increased investor optimism and momentum in the sector.
• Despite concerns raised by an investigation into potential breaches of fiduciary duties by MPWR's directors and officers, the stock surged due to strong Q1 earnings that beat estimates.
• The trimming of stock position by an asset management company did not deter investors, as analysts maintain a "Moderate Buy" rating for MPWR with a high average price target, indicating confidence in the company's future performance.
• The surge in MPWR shares, despite being considered overvalued by an investment analysis platform, can be seen as a reflection of the market's focus on profitability and growth potential rather than immediate valuation concerns.

13.04.2026 - MPWR Stock was up 6.7%

• Despite insider selling actions by Director Jeff Zhou and EVP Deming Xiao, MPWR's stock price surged, likely due to robust financial performance, including an EPS of $5.10 and a 26.1% year-over-year revenue growth.
• Analysts have reiterated a "Moderate Buy" rating on MPWR, with price target upgrades from Wells Fargo and Needham, indicating sustained positive outlook for the company.
• An investigation initiated by the Rosen Law Firm regarding potential breaches of fiduciary duties by MPWR's executives may have caused some initial uncertainty, but overall market sentiment appears unaffected.
• Swiss Life Asset Management Ltd reducing its stock position in MPWR by 10.8% in Q4 did not impede the overall bullish trend, as the stock continued to trade near its 12-month peak post strong Q1 earnings that surpassed expectations.

30.03.2026 - MPWR Stock was up 5.0%

• MPWR revealed its 2026 proxy statement, highlighting robust financial performance in 2025 and intentions to boost dividends, leading to increased investor confidence.
• Institutional investors such as Vanguard Capital Management and Wealthfront Advisers LLC disclosed substantial holdings in MPWR, signaling their trust in the company's future.
• Despite recent insider trade activities and a relatively high price-to-earnings ratio, analysts continue to recommend a "Moderate Buy" rating with a consensus price target, indicating optimism towards MPWR.
• On Wednesday, MPWR demonstrated superior performance compared to its industry peers, even on a day where the overall market saw marginal declines, demonstrating resilience and potential strength in MPWR's stock.

29.04.2026 - MPWR Stock was down 5.1%

• The downturn in MPWR today may be linked to a significant level of insider selling, involving the interim CFO and a company director, selling substantial amounts. This has possibly sparked concerns among investors regarding the company's future.
• Despite the recent strong Q1 2026 earnings report exceeding expectations and analysts increasing price targets, the continuous insider selling of shares may have hinted at potential overvaluation or internal issues.
• The high P/E ratio of 115.49 and the notable shares sold by insiders, including a recent sale amounting to $7,932,150, could have contributed to a decline in investor confidence, thereby leading to the bearish movement observed in the stock today.

07.04.2026 - MPWR Stock was down 5.0%

• Despite reporting strong earnings for the April quarter and receiving positive analyst ratings, Monolithic Power Systems, Inc. ($MPWR) witnessed a bearish movement in its stock today.
• The decline in stock value could be linked to notable insider selling activity, as directors and executives have recently sold off a substantial amount of shares.
• Institutional investors maintain a substantial ownership stake of 93.46%, but the consistent insider selling has raised investor concerns and impacted the stock's performance negatively.
• The conflicting trends of institutional investors increasing their holdings while insiders are divesting shares have introduced uncertainty in the market, potentially contributing to the bearish movement in Monolithic Power Systems' stock today.

19.04.2026 - MPWR Stock was down 5.7%

• A key figure in MPWR filed a Form 144 indicating a proposed sale of common stock, potentially raising concerns among investors.
• The semiconductor sector, including MPWR, faced a sell-off triggered by news of a potential strike at a major competitor and a stake sale by another key player, coupled with supply chain risks and valuation concerns.
• Despite recent volatility and previous disappointments, MPWR had shown significant year-to-date growth, suggesting long-term investor confidence despite the current downturn.
• The market movement could be influenced by broader industry trends and specific company actions, leading to a bearish sentiment towards MPWR today.

28.03.2026 - MPWR Stock was down 5.2%

• The decline in MPWR's stock value today may be linked to the broader semiconductor sector downturn. Geopolitical tensions between the US and China in the AI industry, supply chain disruptions, and escalating raw material expenses likely affected investor sentiment.
• Despite favorable projections for MPWR's earnings and growth opportunities, external factors seem to be overshadowing the company's potential, resulting in the current bearish trend.
• Concerns about the uncertain landscape of US-China relations in the AI domain and its potential impact on companies like MPWR could be prompting investors to react, leading to a temporary decrease in the stock price.

27.04.2026 - MPWR Stock was down 5.8%

• The bearish movement in MPWR's stock today may be linked to recent insider sales disclosed by key individuals, potentially causing concern among investors regarding the company's future.
• Despite reaching a recent all-time high and posting strong Q1 earnings, significant insider selling by notable figures like Jeff Zhou, Eugen J. Elmiger, and Deming Xiao could have diminished investor confidence.
• Concerns about overvaluation highlighted by InvestingPro, combined with the company's high valuation, might have prompted profit-taking among investors, contributing to the stock's bearish performance.
• Competitive pressures within the semiconductor industry, a recent downgrade by Swedbank AB, and substantial insider selling could have collectively influenced the negative sentiment surrounding MPWR's stock today.

12.04.2026 - MPWR Stock was down 5.0%

• MPWR shares surged 3.8% but are considered overvalued, with insider selling raising concerns about future performance.
• Despite gains in the semiconductor industry and increased investor optimism, MPWR's overvaluation and insider selling likely contributed to the bearish movement.
• The stock outperformed competitors on a strong trading day, but the bearish movement could be a correction following recent gains.
• The mixed sentiment from insider selling, coupled with concerns over valuation, may have led investors to take profits, causing the bearish movement in MPWR today.

20.04.2026 - MPWR Stock was up 5.4%

• ProShare Advisors LLC significantly increased its stake in MPWR by 291.9% in Q4, now holding 99,461 shares valued at $90.1 million, indicating strong confidence in the company's future performance.
• Despite some insider selling by executives, the North Dakota State Investment Board purchased 1,586 shares, aligning with positive analyst sentiment and the company's strong quarterly earnings report.
• Handelsbanken Fonder AB reduced its stake in MPWR by 4.5% in Q4, selling 1,658 shares, but other institutional investors increased their holdings, reflecting mixed sentiments within the investor community.
• EVP Maurice Sciammas sold 12,000 shares of MPWR stock for approximately $18.7 million, reducing his ownership by 6.72%. This insider selling, despite the strong earnings report, may have contributed to some short-term volatility in the stock price.