LATTICE SEMICONDUCTOR CORP — Director's Dealing 2012

Feb 27, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: LATTICE SEMICONDUCTOR CORP (LSCC)
CIK: 0000855658
Period of Report: 2012-02-24

Reporting Person: CORESON DAVID E (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-02-24	Common Stock	M	22500	$5.63	Acquired	22500	Direct
2012-02-24	Common Stock	M	22500	$2.32	Acquired	45000	Direct
2012-02-24	Common Stock	S	45000	$6.6373	Disposed	0	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-02-24	Non-Qualified Stock Option (right to buy)	$2.32	M	22500	Disposed	2018-08-05	Common Stock (22500)	Direct
2012-02-24	Non-Qualified Stock Option (right to buy)	$5.63	M	22500	Disposed	2016-08-01	Common Stock (22500)	Direct

Footnotes

F1: This option to purchase shares of common stock vests as follows: 25% of the total amount of shares subject to the option vest on 11/5/2010. 25% of the total amount of shares subject to the option vest each three months thereafter until all shares are vested on 8/5/2011.

F2: This option to purchase shares of common stock vests as follows: 25% of the total amount of shares subject to the option vest on 11/1/2008. 25% of the total amount of shares subject to the option vest each three months thereafter until all shares are vested on 8/1/09.