X0306 4 2020-11-02 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 2020-11-02 4 M 0 1877 0.0 A 91275 D Common Stock 2020-11-02 4 F 0 931 35.06 D 90344 D Restricted Stock Unit (RSU) 0.0 2020-11-02 4 M 0 1877 0.0 D 2020-08-02 Common Stock 1877 173307 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. Restricted Stock Units - no exercise price for this transaction. Grants of Restricted Stock Units (RSUs) vest as follows: 25% of the RSUs will vest on the first anniversary of the date of grant, and an additional 6.25% of the RSUs shall vest at the end of each three month period thereafter. Not applicable. By: Byron W. Milstead, Attorney in Fact For: Sherri R. Luther 2020-11-03