Xiao Deming 4

What Happened

• Xiao Deming, EVP, Global Operations at Monolithic Power Systems (MPWR), sold a total of 30,000 shares in multiple open-market transactions on May 6, 2026. The four reported disposals were: 3,329 shares at $1,648.38 ($5,487,457), 14,167 shares at $1,652.80 ($23,415,218), 11,597 shares at $1,657.93 ($19,227,014), and 907 shares at $1,661.38 ($1,506,872). Aggregate proceeds were about $49.64 million. These were sales (S) — routine disposition rather than a purchase signal.

Key Details

• Transaction date: May 6, 2026; Form 4 filed May 8, 2026 (filed timely within the typical 2‑business‑day window).
• Prices: weighted-average prices reported per line were $1,648.38, $1,652.80, $1,657.93 and $1,661.38 (overall average ≈ $1,654.55). Footnotes (F2–F5) show price ranges for the separate trades and state the filer will provide a full breakdown on request.
• Shares owned after transaction: not specified in the provided excerpt. Footnote F1 notes the ending balance includes 27 shares acquired Feb 17, 2026 via the company’s qualified ESPP.
• Transaction type/code: Open-market sales (code S). No 10b5-1 plan, tax-withholding, or late-filing flag is indicated in the supplied data.

Context

• Sales by officers can be routine (diversification, tax planning, liquidity) and do not by themselves indicate company outlook; purchases are typically viewed as a stronger bullish signal. If you need the per-trade price breakdown (the footnotes indicate varying prices within each reported line), the filer made a statement agreeing to provide that detail upon request to the SEC staff, the issuer, or a security holder.