Elmiger Eugen J 4
4 · MONOLITHIC POWER SYSTEMS INC · Filed May 8, 2026
Research Summary
AI-generated summary of this filing
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.
Insider Transaction Report
Form 4
Elmiger Eugen J
Director
Transactions
- Sale
Common Stock
[F1]2026-05-06$1559.88/sh−320$499,162→ 17,082 total - Sale
Common Stock
[F2]2026-05-06$1566.36/sh−814$1,275,017→ 16,268 total - Sale
Common Stock
[F3]2026-05-06$1571.58/sh−1,078$1,694,163→ 15,190 total - Sale
Common Stock
[F4]2026-05-06$1575.57/sh−834$1,314,025→ 14,356 total - Sale
Common Stock
[F5]2026-05-06$1581.81/sh−1,879$2,972,221→ 12,477 total - Sale
Common Stock
[F6]2026-05-06$1586.81/sh−2,587$4,105,077→ 9,890 total - Sale
Common Stock
[F7]2026-05-06$1591.38/sh−1,355$2,156,320→ 8,535 total - Sale
Common Stock
[F8]2026-05-06$1596.42/sh−2,619$4,181,024→ 5,916 total - Sale
Common Stock
[F9]2026-05-06$1600.14/sh−514$822,472→ 5,402 total
Footnotes (9)
- [F1]The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,557.08 to $1,561.97. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
- [F2]The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,563.39 to $1,568.28. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
- [F3]The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,568.78 to $1,573.40. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
- [F4]The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,573.86 to $1,578.73. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
- [F5]The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,578.85 to $1,583.66. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
- [F6]The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,583.79 to $1,588.65. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
- [F7]The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,588.80 to $1,593.63. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
- [F8]The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,593.95 to $1,598.78. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
- [F9]The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,598.99 to $1,602.68 The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
Signature
/s/ Saria Tseng, attorney-in-fact for Mr. Eugen J. Elmiger|2026-05-08