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Filing Details

Accession Number:: 0001437749-16-042117
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2016-11-14 20:34:28
Reporting Period:: 2012-04-24

Filing Date:: 2016-11-14
Accepted Time:: 2016-11-14 20:34:28
SEC Url:: Form 4 Filing

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
1308647	Deming Xiao	79 Great Oaks Blvd San Jose CA 95119	Pres. Of Mps Asia Operations	No	Yes	No	No

Reported Non-Derivative Transactions

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2016-11-09	5,042	$76.91	273,690	No	4	S	Direct
Common Stock	Disposition	2016-11-09	1,300	$77.86	272,390	No	4	S	Direct
Common Stock	Acquisiton	2012-04-24	3,500	$0.00	3,672	No	4	A	Indirect	by Spouse
Common Stock	Acquisiton	2014-02-04	4,533	$0.00	8,205	No	4	A	Indirect	by Spouse
Common Stock	Acquisiton	2014-04-22	415	$0.00	8,620	No	4	A	Indirect	by Spouse
Common Stock	Disposition	2016-11-09	833	$79.35	7,787	No	4	S	Indirect	by Spouse
Common Stock	Disposition	2016-11-09	5,482	$79.39	2,305	No	4	S	Indirect	by Spouse

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Direct
No	4	S	Direct
No	4	A	Indirect	by Spouse
No	4	A	Indirect	by Spouse
No	4	A	Indirect	by Spouse
No	4	S	Indirect	by Spouse
No	4	S	Indirect	by Spouse

Footnotes

In accordance with the reporting person's l0b5-l trading plan.
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 $76.52 to $77.48. 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.
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 $77.60 to $78.08. 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.
1/16 of the Restricted Stock Units vested quarterly following the Vesting Commencement Date, provided that the Grantee continued to be a Service Provider from the Grant Date through each applicable vesting date. The award is now fully vested.
On April 24, 2012, the reporting person was granted a target of 3,500 shares of restricted stock units subject to satisfaction of pre-determined, performance-based vesting criteria. On February 4, 2014, the Company's Board of Directors determined that those performance criteria for the restricted stock units had been satisfied, which resulted in 831 additional shares being achieved and granted to the reporting person. Of the restricted stock units that were awarded, 2,267 vested May I, 2014 and 2,266 vested quarterly in the next two years. In addition, 202 shares were granted as a result of an equitable stock dividend adjustment approved by the Board of Directors on December 28,2012. This award is now fully vested.
Transaction was executed during an authorized trading window in compliance with the Company's Insider Trading Compliance 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 $79.3901 to $79.40. 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.