Home > Insider Trading > Filing (0001280452-14-000062)

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
1312593	Saria Tseng	79 Great Oaks Blvd San Jose CA 95119	Vp & General Counsel	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2014-02-18	750	$24.43	63,965	No	4	J	Direct
Common Stock	Disposition	2014-02-20	3,368	$34.85	60,597	No	4	S	Direct
Common Stock	Disposition	2014-02-20	750	$34.82	59,847	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	J	Direct
No	4	S	Direct
No	4	S	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	2,000	Indirect	S.Tseng Charity Fund

Footnotes

Acquired through the Company's qualified ESPP program.
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 $34.8202 to $34.8256. 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.