InsiderTrades

Form 4 for MPWR Monolithic Power Systems

Accepted 2026-06-02 18:36:40 ET · period of report 2026-05-29 · accession 0001214659-26-007088 · 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
I 2026-06-02 18:36 2026-05-29 MPWR Sciammas Maurice EVP, WW Sales, Marketing G - Gift $0.00 -12.5K 12.6K -50% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-05-29 G D 12,472 $0.00 12,625 I Various Sciammas GRATs — — (F1) The reported transaction involved distributions of securities from the various GRATs, of which the reporting person is a trustee, to individuals who are not immediate family members sharing the same household. No funds were exchanged and no sale of shares occurred in the distributions. Following the completion of the distributions, neither the GRATs nor the reporting person retains any pecuniary interest in the shares.