MONOLITHIC POWER SYSTEMS INC — Director's Dealing 2010

Apr 6, 2010

SEC Form 4/A — Form 4/A

Issuer: MONOLITHIC POWER SYSTEMS INC (MPWR)
CIK: 0001280452
Period of Report: 2010-02-25

Reporting Person: Rao Meera (VP of Finance, Corp Controller)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-02-25	Common Stock	A	30000	—	Acquired	30000	Direct

Footnotes

F1: Subject to accelerated vesting in certain circumstances, 25% of the Performance Units shall vest on the 12-month anniversary of the Vesting Commencement Date, and 1/16 of the Performance Units shall vest quarterly thereafter, provided that the Grantee continues to be a Service Provider from the Grant Date through each applicable vesting date.