Michael Hsing - Apr 3, 2023 Form 4 Insider Report for MONOLITHIC POWER SYSTEMS INC (MPWR)

Role: CEO, Director
Signature: /s/ Saria Tseng, attorney-in-fact for Mr. Michael R. Hsing
Stock symbol: MPWR
Transactions as of: Apr 3, 2023
Transactions value $: -$5,416,689
Form type: 4
Date filed: 4/6/2023, 04:48 PM
Previous filing: Feb 13, 2023
Next filing: May 4, 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MPWR	Common Stock	Sale	-$5.42M	-11.1K	-1.05%	$487.99	1.05M	Apr 3, 2023	Direct	F1, F2, F3
holding	MPWR	Common Stock						133K	Apr 3, 2023	by M Hsing 04 Trust
holding	MPWR	Common Stock						12.8K	Apr 3, 2023	ZH Family 2020 Trust

Showing 1 to 3 of 3 entries

* 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 $487.99 to $488.00. 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	Ending balance includes 33 shares acquired on February 15, 2023 through the Company's qualified ESPP program.