NVIDIA Power Partners CFO·CEO Sell Hundreds of Billions in Shares During Earnings Season

Monolithic Power Systems, Inc. (Nasdaq: MPWR) disclosed that in early February its Chief Financial Officer and Chief Executive Officer sold tens of thousands of shares of its common stock on the open market under pre-established Rule 10b5-1 trading plans. The CFO realized approximately $3.12 million (KRW 4.2 billion) in proceeds, while the CEO secured about $38.9 million (KRW 525 billion).

According to the Form 4 filings, CFO Theodore Blegen still holds tens of thousands of shares—combining direct ownership and indirect holdings through a family trust—even after selling portions of his stake at various price levels on February 2. CEO Michael Hsing likewise continues to own equity valued at over $1.1 billion (KRW 1.5 trillion) through direct and trust holdings following his sale on February 10.

In a Form 8-K filed the same day, the company released preliminary results for the fourth quarter and full year of fiscal 2025, along with guidance for the first quarter of 2026. It also announced a 28% increase in its quarterly cash dividend, raising it from $1.56 to $2.00 per share (approximately KRW 2,700), payable to shareholders of record as of March 31.

On February 5, Monolithic reported fourth-quarter 2025 revenue of $751.2 million and non-GAAP diluted earnings per share of $4.79, maintaining double-digit year-over-year growth and slightly exceeding market consensus.

The stock has recently gained prominence as a power‐solution supplier for NVIDIA data centers, trading around $1,200 and lifting its market capitalization to roughly $60 billion (KRW 80 trillion). It is frequently cited as a thematic play amid heightened investment in AI and cloud infrastructure.

Headquartered in Kirkland, Washington, Monolithic Power Systems is a fabless power-semiconductor company that has supplied power-management chips for data centers, communications infrastructure, automotive applications, and industrial equipment since its founding in 1997.

Founder and CEO Michael Hsing has grown the company into a Nasdaq 100 and S&P 500 constituent by expanding its DC-DC power-conversion solutions for servers and AI data centers. The company is now emphasizing a strategic shift from a pure-chip supplier to a full-service power-solutions provider.