MONOLITHIC POWER SYSTEMS INC — Director's Dealing 2013

Apr 25, 2013

SEC Form 4/A — Form 4/A

Issuer: MONOLITHIC POWER SYSTEMS INC (MPWR)
CIK: 0001280452
Period of Report: 2013-02-11

Reporting Person: Hsing Michael (Director, CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-02-11	Common Stock	A	31409.0	$0.0	Acquired	591996	Direct

Footnotes

F1: This amendment is to eliminate the reporting of 94,226 Performance Stock Units because they were reported as granted and not when they are earned.

F2: These 94,226 shares of Performance Stock Units were granted and shall be subject to satisfaction of performance-based vesting criteria based on achievement of certain long term Company performance targets, as determined by the Compensation Committee of the Company, and additional time vesting subsequent to the achievement of those performance targets, provided that the Grantee continues to be a Service Provider from the grant date through each applicable vesting date.