Monolithic Power Systems Inc. (NASDAQ:MPWR) saw notable insider activity on May 5, 2026, when Maurice Sciammas, serving as the Executive Vice President of Worldwide Sales & Marketing, sold a portion of his holdings. The transaction consisted of 380 shares of common stock, priced at $1,583.81 per share, totaling an aggregate value of $601,847. This sale was handled indirectly via the Rosalind Sciammas Brokerage Account.
Following this specific transaction, Mr. Sciammas maintains a direct holding of 178,644 shares of Monolithic Power Systems common stock. The Rosalind Sciammas Brokerage Account, which facilitated this sale, now holds a balance of 919 shares.
The executive's interest in the company is further reflected through an extensive array of indirect holdings across various trusts and accounts. These include:
- 49,460 shares held by the Sciammas Family Trust
- 26,660 shares via Various Sciammas GRATs
- 4,015 shares in the Sciammas Trust 2020
- 5,000 shares in the Clement Sciammas Family 2021 Trust
- 2,000 shares held by the Rosalind Sciammas Family 2021 Trust
- 1,699 shares by The Joseph Roger Sciammas 2020 Irrevocable Trust
- 1,699 shares by The Patrick Francis Sciammas 2020 Irrevocable Trust
- 1,699 shares by The Chloe Liliane Sciammas 2020 Irrevocable Trust
- 1,209 shares in the Clement Sciammas Trust
- 1,000 shares held by the Peter Rafferty and Eric Toothill 2021 Trust
This insider sale occurs against a backdrop of robust financial performance for Monolithic Power Systems. During its first-quarter 2026 earnings report, the company exceeded market expectations on multiple fronts. MPWR reported revenue of $804.2 million, which was higher than the anticipated $781.63 million. Earnings per share (EPS) also outperformed forecasts, coming in at $5.10 compared to the expected $4.90.
The company's outlook for the second quarter also surpassed expectations, driven largely by significant expansion within data center operations, specifically in the AI and server CPU sectors. This growth has prompted positive adjustments from several analyst firms. KeyBanc maintained an Overweight rating while raising its price target for MPWR to $2,000 from a previous $1,500, citing strength in Enterprise Data and Communications.
Similarly, Wolfe Research updated its stance by maintaining an Outperform rating and increasing its price target from $1,650 to $1,950. Wolfe Research also revised its forward-looking estimates upward, projecting 2026 revenue at $3.7 billion with an EPS of $23.91, and 2027 revenue reaching $4.3 billion with an EPS of $29.28, citing confidence in AI power strength.
Despite the positive momentum and upwardly revised analyst targets, some valuation metrics suggest caution. According to InvestingPro analysis, MPWR appears to be overvalued at its current trading levels. The stock's proximity to its 52-week high of $1,661.79, following a year of 156.86% growth, highlights the current market positioning of the company.