MONOLITHIC POWER SYSTEMS INC — Director's Dealing 2023

Feb 17, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MONOLITHIC POWER SYSTEMS INC (MPWR)
CIK: 0001280452
Period of Report: 2023-02-15

Reporting Person: Sciammas Maurice (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-02-15	Common Stock	S	2682	$517.68	Disposed	215630	Direct
2023-02-15	Common Stock	S	3200	$519.02	Disposed	212430	Direct
2023-02-15	Common Stock	S	4340	$520.20	Disposed	208090	Direct
2023-02-15	Common Stock	S	2778	$520.90	Disposed	205334	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	13502	Indirect
Common Stock	2000	Indirect
Common Stock	23015	Indirect
Common Stock	26700	Indirect
Common Stock	1699	Indirect
Common Stock	1699	Indirect
Common Stock	5000	Indirect
Common Stock	2000	Indirect
Common Stock	19458	Indirect
Common Stock	19458	Indirect
Common Stock	1699	Indirect

Footnotes

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 $517.40 to $518.38. 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.

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 $518.55 to $519.53. 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: 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 $519.57 to $520.55. 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.

F4: 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 $520.58 to $521.46. 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.

F5: Ending balance includes 22 shares acquired on February 15, 2023 through the Company's qualified ESPP program.