MONOLITHIC POWER SYSTEMS INC — Director's Dealing 2014

Feb 11, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MONOLITHIC POWER SYSTEMS INC (MPWR)
CIK: 0001280452
Period of Report: 2014-02-10

Reporting Person: Hsing Michael (Director, CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-02-10	Common Stock	S	5106.0	$33.2062	Disposed	447420	Direct
2014-02-10	Common Stock	S	241.0	$33.2056	Disposed	447179	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	465566	Indirect
Common Stock	133040	Indirect
Common Stock	29000	Indirect
Common Stock	133040	Indirect

Footnotes

F1: Shares sold to pay tax obligations resulting from the vesting of restricted stock units.