Form 4 for MPWR Monolithic Power Systems
Accepted 2025-09-02 00:00:00 ET · period of report 2025-08-29 · accession 0001214659-25-013192 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M | 2025-09-02 | 2025-08-29 | MPWR | Elmiger Eugen J | Dir | S - Sale | $846.71 | -4,000 | 18.1K | -18% | -$3.39M |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2025-08-29 | S | D | 700 | $845.54 | 19,713 | D | — | — | (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 $845.15 to $845.72. 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. |
| 2 | Common | Common Stock | 2025-08-29 | S | D | 800 | $849.41 | 17,213 | D | — | — | |
| 3 | Common | Common Stock | 2025-08-29 | S | D | 100 | $848.03 | 18,013 | D | — | — | |
| 4 | Common | Common Stock | 2025-08-29 | S | D | 800 | $844.25 | 20,413 | D | — | — | (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 $844.00 to $844.62. 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. |
| 5 | Common | Common Stock | 2025-08-29 | S | D | 700 | $846.66 | 19,013 | D | — | — | (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 $846.16 to $846.97. 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. |
| 6 | Common | Common Stock | 2025-08-29 | S | D | 900 | $847.30 | 18,113 | D | — | — | (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 $847.19 to $847.44. 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. |