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MONOLITHIC POWER SYSTEMS INC Director's Dealing 2011

Aug 15, 2011

30057_dirs_2011-08-15_3581756a-63c5-4b71-91ec-bd11461fabef.zip

Director's Dealing

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SEC Form 4/A — Form 4/A

Issuer: MONOLITHIC POWER SYSTEMS INC (MPWR)
CIK: 0001280452
Period of Report: 2011-08-11

Reporting Person: CHANG KUO WEI HERBERT (Director)

Non-Derivative Transactions

Date Security Code Shares Price A/D Holdings After Ownership
2011-08-11 Common Stock S 5000 $12.5317 Disposed 21145 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 $12.50 to $12.56126. 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: Reporting person is a General Partner of the VCFA Growth Partners, L.P., a Cayman Island Limited Partnership. Mr. Chang retains beneficial ownership of these shares, but disclaims the economic benefit except to his pecuniary interests, if any.