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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1280452	Monolithic Power Systems Inc	MPWR	Semiconductors & Related Devices (3674)	770466789

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1308656	C James Moyer	5808 Lake Washington Blvd Ne Kirkland WA 98033		No	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2023-11-16	3,800	$0.00	41,261	No	4	G	Indirect	JCM Management Trust
Common Stock	Acquisiton	2023-11-16	3,800	$0.00	3,800	No	4	G	Indirect	Moyer Family Foundation
Common Stock	Disposition	2023-11-16	2,087	$538.34	1,713	No	4	S	Indirect	Moyer Family Foundation
Common Stock	Disposition	2023-11-16	1,502	$539.60	211	No	4	S	Indirect	Moyer Family Foundation
Common Stock	Disposition	2023-11-16	211	$540.18	0	No	4	S	Indirect	Moyer Family Foundation

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	G	Indirect	JCM Management Trust
No	4	G	Indirect	Moyer Family Foundation
No	4	S	Indirect	Moyer Family Foundation
No	4	S	Indirect	Moyer Family Foundation
No	4	S	Indirect	Moyer Family Foundation

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	3,450	Indirect	by Moyer FamilyTrust
Common Stock	470	Direct

Footnotes

The reported transaction involved a transfer of securities by gift for which no payment of consideration was received by the reporting person.
The ending balance reflects a transfer of 2,123 shares from the reporting person's direct ownership to his indirect ownership. No payment of consideration was received by the reporting person.
The Moyer Family Foundation is a 501(c)(3) foundation and the reporting person is on the management board of the charity.