Maurice Sciammas - Jul 1, 2022 Form 4 Insider Report for MONOLITHIC POWER SYSTEMS INC (MPWR)

Role: Sr. V.P.of Sales and Marketing
Signature: /s/ Saria Tseng, attorney-in-fact for Mr. Maurice Sciammas
Stock symbol: MPWR
Transactions as of: Jul 1, 2022
Transactions value $: -$1,632,534
Form type: 4
Date filed: 7/6/2022, 05:11 PM
Previous filing: May 16, 2022
Next filing: Aug 8, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MPWR	Common Stock	Sale	-$1.63M	-4.52K	-2%	$361.58	221K	Jul 1, 2022	Direct	F1, F2
holding	MPWR	Common Stock						2K	Jul 1, 2022	Rosalind Sciammas Family 2021 Trust
holding	MPWR	Common Stock						23K	Jul 1, 2022	By Sciammas Trust 2020
holding	MPWR	Common Stock						26.7K	Jul 1, 2022	By GRAT
holding	MPWR	Common Stock						22.6K	Jul 1, 2022	Maurice Sciammas Trust FBO Oski Crew
holding	MPWR	Common Stock						22.6K	Jul 1, 2022	Christina Sciammas Trust FBO Oski Crew
holding	MPWR	Common Stock						1.7K	Jul 1, 2022	The Patrick Francis Sciammas 2020 Irrevocable Trust
holding	MPWR	Common Stock						1.7K	Jul 1, 2022	The Chloe Liliane Sciammas 2020 Irrevocable Trust
holding	MPWR	Common Stock						1.7K	Jul 1, 2022	The Joseph Roger Sciammas 2020 Irrevocable Trust
holding	MPWR	Common Stock						5K	Jul 1, 2022	Clement Sciammas Family 2021 Trust
holding	MPWR	Common Stock						2K	Jul 1, 2022	Peter Rafferty and Eric Toothill 2021Trust
holding	MPWR	Common Stock						7.3K	Jul 1, 2022	by Family Trust

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan.
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 $361.57 to $361.58. 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.

Content

The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan.

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 $361.57 to $361.58. 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.