MONOLITHIC POWER SYSTEMS INC — Director's Dealing 2012

Feb 16, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MONOLITHIC POWER SYSTEMS INC (MPWR)
CIK: 0001280452
Period of Report: 2012-02-14

Reporting Person: MCBURNIE DOUGLAS M (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-02-14	Common Stock	A	4835.0	$0.0	Acquired	10235.0	Direct
2012-02-14	Common Stock	S	5400.0	$17.2428	Disposed	4835.0	Direct

Footnotes

F1: According to the Company's 2004 Equity Incentive Plan and the Board Compensation Schedule as adopted by the Board on February 7, 2012, each Outside Director will be automatically granted Restricted Stock Units as of such date, if he or she will have served on the Board for at least the preceding six (6) months, with such grant to be effective as of the first day that the Company's trading window re-opens (or as of the date of the meeting of the Board or Compensation Committee, as applicable, if the Company's trading window is open on such date), subject to the Outside Director's continued service to the Board through such date.

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 $17.20 to $17.29. 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.