Monolithic Power Systems (MPWR) Director Eugen Elmiger Sells Shares

What Happened

• Eugen J. Elmiger, a director of Monolithic Power Systems (MPWR), disposed of 12,000 shares in multiple open-market sales on May 6, 2026. The nine reported sale lots totaled roughly $19.0 million in proceeds. Individual reported line totals: 320 sh @ $1,559.88 ($499,162); 814 sh @ $1,566.36 ($1,275,017); 1,078 sh @ $1,571.58 ($1,694,163); 834 sh @ $1,575.57 ($1,314,025); 1,879 sh @ $1,581.81 ($2,972,221); 2,587 sh @ $1,586.81 ($4,105,077); 1,355 sh @ $1,591.38 ($2,156,320); 2,619 sh @ $1,596.42 ($4,181,024); 514 sh @ $1,600.14 ($822,472). All transactions are coded "S" (sale).

Key Details

• Transaction date: 2026-05-06; Form 4 filed 2026-05-08 (filed within the typical two-business-day window).
• Prices: reported weighted-average prices per line range from $1,559.88 to $1,600.14; footnotes F1–F9 provide the detailed per-trade price ranges and note the filer will provide per-price breakdowns on request.
• Shares sold: 12,000 total; proceeds ≈ $19.02 million.
• Shares owned after transaction: not specified in the provided excerpt of the filing.
• No 10b5‑1 plan, tax-withholding, or option-exercise codes were disclosed in the provided lines — all entries are open-market sales (S).

Context

• These are outright open-market sales by a company director. Sales are common for liquidity or portfolio reasons and do not, by themselves, indicate the director’s view on the company’s long-term prospects. Purchases generally carry more weight as bullish signals; here the filing is purely dispositional.