InsiderTrades

Form 4 for MPWR Monolithic Power Systems

Accepted 2026-01-06 00:00:00 ET · period of report 2026-01-02 · accession 0001214659-26-000208 · 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
2026-01-06 2026-01-02 MPWR Lee Victor K Dir S - Sale $930.86 -600 28.0K -2% -$558.5K

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-01-02 S D 600 $930.86 27,967 D — — (F1) This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 8/25/2025.