MONOLITHIC POWER SYSTEMS INC — Director's Dealing 2013

Nov 8, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MONOLITHIC POWER SYSTEMS INC (MPWR)
CIK: 0001280452
Period of Report: 2013-11-06

Reporting Person: Xiao Deming (Pres. of MPS Asia Operations)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-11-06	Common Stock	S	276.0	$31.73	Disposed	67898	Direct
2013-11-07	Common Stock	S	786.0	$32.0	Disposed	67112	Direct
2013-11-08	Common Stock	S	2248.0	$31.05	Disposed	64864	Direct
2013-11-06	Common Stock	S	248.0	$31.73	Disposed	8267	Indirect

Footnotes

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

F2: The increase in the beneficially owned shares is due to the equitable stock dividend adjustment approved by the Board of Director as a result of dividend Payment to shareholders on December 28, 2012. Stock dividends will release according to the same vesting schedule as the original grants.