Mr. Deming Xiao - 28 May 2021 Form 4 Insider Report for MONOLITHIC POWER SYSTEMS INC (MPWR)

Role: Pres. of MPS Asia Operations
Signature: /s/ Saria Tseng, attorney-in-fact for Mr. Deming Xiao
Issuer symbol: MPWR
Transactions as of: 28 May 2021
Net transactions value: -$854,244
Form type: 4
Filing time: 28 May 2021, 20:19:00 UTC
Previous filing: 14 May 2021
Next filing: 06 Jul 2021
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	$854,244	-2,485	-0.77%	$343.76	321,064	28 May 2021	Direct	F1
holding	MPWR	Common Stock						1,101	28 May 2021	by Spouse

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

Explanation of Responses:

Id	Content
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 $343.76-$343.77. 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 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 $343.76-$343.77. 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.