MONOLITHIC POWER SYSTEMS INC — Director's Dealing 2013

Aug 9, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MONOLITHIC POWER SYSTEMS INC (MPWR)
CIK: 0001280452
Period of Report: 2013-08-07

Reporting Person: Sciammas Maurice (Sr. V.P.of Sales and Marketing)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-08-08	Common Stock	A	150.0	$0.0	Acquired	106391	Direct
2013-08-08	Common Stock	S	79.0	$28.28	Disposed	106312	Direct
2013-08-08	Common Stock	S	1674.0	$28.2812	Disposed	104638	Direct
2013-08-07	Common Stock	S	10000.0	$28.0	Disposed	12746	Indirect

Footnotes

F1: 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.

F2: Shares sold to pay tax obligations resulting from the vesting of restricted stock units.

F3: In accordance with the reporting person's 10b5-1 trading plan.