Insider Trading July 6, 2026 05:58 PM

Monolithic Power Systems Executive Liquidates Position Under Pre-Arranged Plan

EVP Maurice Sciammas Offloads $40,548 in Shares as Semiconductor Sector Navigates AI-Driven Valuations

By Sofia Navarro
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MPWR

Maurice Sciammas, Executive Vice President of Worldwide Sales and Marketing at Monolithic Power Systems Inc. (NASDAQ: MPWR), executed a stock sale on July 1, 2026, resulting in the disposal of 30 shares valued at $40,548. The transaction was facilitated through the Clement Sciammas Trust and adhered to a Rule 10b5-1 trading plan established on November 19, 2025. Following this disposition, Sciammas retains a substantial direct holding of 166,644 shares, alongside numerous indirect interests distributed across various family trusts and accounts. The sale occurs against a backdrop of strong stock performance, with MPWR sharing a 79% gain over the past year and a 49% year-to-date increase, trading at $1,345.15 with a market capitalization of $66.14 billion. The company maintains a high P/E ratio of 97, with analyses suggesting it is overvalued relative to fair value metrics. Monolithic Power Systems recently reported first-quarter 2026 earnings that exceeded Wall Street expectations, with EPS of $5.10 against a forecast of $4.90 and revenue of $804.2 million surpassing the projected $781.63 million. Analysts from Wolfe Research and KeyBanc have raised their price targets to $1,950 and $2,000 respectively, citing robust growth in AI power and data center sectors. The company also declared a second-quarter dividend of $2.00 per share. Concurrently, Broadcom discussed its Apollo and Blackstone XPV financing vehicle following its earnings report, highlighting the dynamic nature of the semiconductor industry.

Monolithic Power Systems Executive Liquidates Position Under Pre-Arranged Plan
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Key Points

  • Maurice Sciammas, EVP of Worldwide Sales and Marketing at Monolithic Power Systems, sold 30 shares valued at $40,548 on July 1, 2026, through the Clement Sciammas Trust under a Rule 10b5-1 plan adopted on November 19, 2025.
  • Monolithic Power Systems reported first-quarter 2026 earnings that exceeded expectations, with EPS of $5.10 versus a forecast of $4.90, and revenue of $804.2 million against a projection of $781.63 million, prompting price target increases from Wolfe Research and KeyBanc.
  • The stock has delivered strong performance with a 79% gain over the past year and a 49% year-to-date increase, trading at $1,345.15 with a market cap of $66.14 billion, though it maintains a high P/E ratio of 97 and is considered overvalued relative to fair value.

Maurice Sciammas, who serves as the Executive Vice President of Worldwide Sales and Marketing at Monolithic Power Systems Inc. (NASDAQ: MPWR), executed a stock sale on July 1, 2026. The transaction resulted in the disposal of 30 shares of common stock, valued at $40,548. This activity was documented in a recent SEC filing, providing transparency into executive holdings within the semiconductor sector.

The sale was processed indirectly through the Clement Sciammas Trust and was structured in compliance with a Rule 10b5-1 trading plan. This pre-arranged framework was adopted on November 19, 2025, ensuring the transaction was executed according to a predetermined schedule rather than based on market timing. The execution price for the disposed shares was recorded at $1,351.61 per share. Following this disposition, Sciammas maintains a direct holding of 166,644 shares of Monolithic Power Systems common stock. His indirect interests are distributed across a complex network of trusts and accounts. These include 1,149 shares via the Clement Sciammas Trust, 1,699 shares through The Joseph Roger Sciammas 2020 Irrevocable Trust, and 2,000 shares through the Rosalind Sciammas Family 2021 Trust. Additional holdings are held in the Rosalind Sciammas Brokerage Account with 919 shares, the Sciammas Family Trust with 51,023 shares, and Various Sciammas GRATs with 12,625 shares. Further indirect interests include 1,699 shares through The Patrick Francis Sciammas 2020 Irrevocable Trust, 4,015 shares through Sciammas Trust 2020, 1,000 shares through Peter Rafferty and Eric Toothill 2021 Trust, 1,699 shares through The Chloe Liliane Sciammas 2020 Irrevocable Trust, and 5,000 shares through the Clement Sciammas Family 2021 Trust.

The semiconductor stock has demonstrated significant appreciation, recording a 79% gain over the past year and a 49% increase year-to-date. The stock is currently trading at $1,345.15, supporting a market capitalization of $66.14 billion. Valuation metrics indicate a high price-to-earnings ratio of 97. Independent analysis suggests the stock is overvalued relative to its fair value, placing it among companies categorized as overvalued in current market assessments.

In recent corporate developments, Monolithic Power Systems reported first-quarter 2026 earnings that surpassed Wall Street expectations. The company achieved an earnings per share of $5.10, exceeding the forecasted $4.90. Revenue also outperformed projections, reaching $804.2 million against an anticipated $781.63 million. Analyst coverage reflects optimism regarding the company's trajectory. Wolfe Research raised its price target for Monolithic Power Systems to $1,950 from $1,650, maintaining an Outperform rating. The firm cited increased revenue and earnings estimates driven by strength in AI power applications. Similarly, KeyBanc raised its price target to $2,000 from $1,500, maintaining an Overweight rating. KeyBanc highlighted strong growth in the data center sector as a key driver.

Monolithic Power Systems also announced a second-quarter dividend of $2.00 per common share. This dividend is payable to stockholders of record as of June 30, 2026. The announcement underscores the company's commitment to returning capital to investors amidst its expansion. The broader semiconductor and technology sectors continue to experience dynamic shifts. Broadcom recently discussed its Apollo and Blackstone XPV financing vehicle following its earnings report. This development could significantly impact future XPU revenue streams, reflecting the competitive and evolving nature of the industry.

Risks

  • Monolithic Power Systems trades at a P/E ratio of 97, with analysis indicating the stock is overvalued relative to its fair value, posing a risk for investors concerned with valuation multiples in the semiconductor sector.
  • The semiconductor and technology sectors are characterized by dynamic shifts, as evidenced by Broadcom's discussion of its Apollo and Blackstone XPV financing vehicle, which could significantly impact future XPU revenue and create competitive pressures.

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