X0306 4 2022-08-02 0 0000855658 LATTICE SEMICONDUCTOR CORP LSCC 0001764515 Luther Sherri R 5555 NE MOORE COURT HILLSBORO OR 97124 0 1 0 0 SVP, CFO Common Stock 2022-08-02 4 M 0 1878 0.0 A 136643 D Common Stock 2022-08-02 4 F 0 932 63.59 D 135711 D Common Stock 2022-08-02 4 M 0 20032 0.0 A 155743 D Common Stock 2022-08-02 4 F 0 9932 63.59 D 145811 D Performance Restricted Stock Unit (PRSU) 0.0 2022-08-02 4 M 0 20032 0.0 D Common Stock 20032 100077 D Restricted Stock Unit (RSU) 0.0 2022-08-02 4 M 0 1878 0.0 D Common Stock 1878 91818 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. Each Restricted Stock Unit (RSU) represents a right to receive one share of the Issuer's common stock without payment of specific consideration. Performance Restricted Stock Units (PRSUs) vest as follows: one-third of the PRSUs will vest on each anniversary of the date of grant, subject to the achievement of certain performance conditions. Not applicable. 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. By: Tracy Feanny, Attorney in Fact For: Sherri R Luther 2022-08-02