X0306 4 2020-04-02 0 0000855658 LATTICE SEMICONDUCTOR CORP LSCC 0001764515 Luther Sherri R 5555 NE MOORE COURT HILLSBORO OR 97124 0 1 0 0 VP Corp, CFO Common Stock 2020-04-02 4 M 0 8823 0.0 A 69906 D Common Stock 2020-04-02 4 F 0 4375 16.85 D 65531 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 amount retained by the Issuer was not in excess of the amount of the tax liability. By: Byron W. Milstead, Attorney in Fact For: Sherri R. Luther 2020-04-02