MONOLITHIC POWER SYSTEMS INC — Director's Dealing 2013

Mar 4, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MONOLITHIC POWER SYSTEMS INC (MPWR)
CIK: 0001280452
Period of Report: 2013-02-28

Reporting Person: MCBURNIE DOUGLAS M (Director)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-02-28	Non-Qualified Stock Option (right to buy)	$12.28	A	1176.0	Acquired	2016-02-18	Common Stock (1176)	Direct
2013-02-28	Non-Qualified Stock Option (right to buy)	$16.2	A	941.0	Acquired	2014-05-24	Common Stock (941)	Direct
2013-02-28	Non-Qualified Stock Option (right to buy)	$19.29	A	1176.0	Acquired	2017-02-09	Common Stock (1176)	Direct
2013-02-28	Non-Qualified Stock Option (right to buy)	$22.01	A	705.0	Acquired	2015-05-22	Common Stock (705)	Direct

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 will vest according to the same vesting schedule as the original grants.