Xiao Deming 4

What Happened

• Xiao Deming, Executive Vice President, Global Operations at Monolithic Power Systems (MPWR), was awarded 57,170 shares on February 3, 2026. The Form 4 reports the acquisition as an award (code A) at $0.00 (standard for vested restricted stock units), with shares released and fully vested the same day. The award stems from performance-based restricted stock units (PSUs) granted on February 7, 2023 and earned after a three-year performance period.

Key Details

• Transaction date: February 3, 2026 (reported on Form 4 filed Feb 5, 2026) — filing is timely.
• Transaction type/code: Award/Acquisition (A); Form shows $0.00 per share (award/vesting reporting convention).
• Shares awarded and released: 57,170 shares; subject to tax withholding on release (footnote F1).
• Footnote: PSUs granted 2/7/2023 vested after the Compensation Committee certified performance achievement; all vested shares were released 2/3/2026.
• Shares owned after transaction: not specified in the provided filing summary.

Context

• This was a vesting/release of previously granted performance-based RSUs, not an open-market purchase or sale — it reflects compensation being delivered, not a market trade. The $0.00 per-share figure on the Form 4 is a reporting convention for awards; the economic value equals the market price of MPWR shares at vesting (not shown on the Form 4). Tax withholding was applied on the released shares as noted in the filing.