MONOLITHIC POWER SYSTEMS INC — Director's Dealing 2016

Nov 22, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MONOLITHIC POWER SYSTEMS INC (MPWR)
CIK: 0001280452
Period of Report: 2016-11-18

Reporting Person: Lee Victor K (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-11-18	Common Stock	M	1115	$19.29	Acquired	23911	Direct
2016-11-18	Common Stock	S	1115	$82.0533	Disposed	22796	Direct
2016-11-21	Common Stock	M	1200	$19.29	Acquired	23996	Direct
2016-11-21	Common Stock	S	1200	$83.52	Disposed	22796	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-11-18	Non-Qualified Stock Option (Right to Buy)	$19.29	M	1115	Disposed	2017-02-02	Common Stock (1115)	Direct
2016-11-21	Non-Qualified Stock Option (Right to Buy)	$19.29	M	1200	Disposed	2017-02-02	Common Stock (1200)	Direct

Footnotes

F1: Transaction was executed during an authorized trading window in compliance with the Company's Insider Trading Compliance Program.

F2: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $82.00 to $82.15. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F3: The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $83.50 to $83.57. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.