X0303 4 2010-11-03 0 0000855658 LATTICE SEMICONDUCTOR CORP LSCC 0001465588 Fanning Christopher M 5555 N.E. MOORE CT. HILLSBORO OR 97124 0 1 0 0 CEO (Interim) Common Stock 2010-11-03 4 M 0 1555 0 A 31493 D Common Stock 2010-11-03 4 F 0 551 4.87 D 30942 D Restricted Stock Unit (RSU) 0 2010-11-03 4 M 0 1555 0 D 2013-02-04 Common Stock 1555 13994 D Restricted Stock Units - no purchase price for this transaction. These shares were retained by the Issuer in order to meet the tax withholding obligations of the Reporting Person in connection with the vesting of an installment of the restricted stock units. The amoun retained by the Issuer was not in excess of the amount of the tax liability. Each Restricted Stock Unit (RSU) represents a right to receive one share of the Issuers common shares without payment of specific consideration. This grant of Restricted Stock Units (RSUs) vest as follows: 25% of the RSUs will vest upon the one-year anniversary of the grant date and an additional 6.25% of the RSUs vest each three months thereafter until 100% of the RSU grant is vested. 24,878 Restricted Stock Units (RSUs) were granted on 2/3/09 and vest, in whole shares as follows: 25% of the RSU grant shall vest on 2/3/10, and an additional 6.25% of the RSUs vest on each three months thereafter until 100% of the RSU grant is vested on 2/3/2013. By: Byron W. Milstead, Attorney-in-Fact For: Christopher Fanning 2010-11-05