X0508 4 2024-02-16 0000855658 LATTICE SEMICONDUCTOR CORP LSCC 0001891117 Feanny Tracy Ann 5555 NE MOORE COURT HILLSBORO OR 97124 1 SVP, General Counsel 0 Common Stock 2024-02-17 4 M 0 2734 0 A 19173 D Common Stock 2024-02-17 4 F 0 1076 73.24 D 18097 D Common Stock 2024-02-18 4 M 0 214 0 A 18311 D Common Stock 2024-02-18 4 F 0 85 73.24 D 18226 D Restricted Stock Unit (RSU) 0 2024-02-16 4 A 0 14916 0 A Common Stock 14916 31656 D Restricted Stock Unit (RSU) 0 2024-02-17 4 M 0 2734 0 D Common Stock 2734 28922 D Restricted Stock Unit (RSU) 0 2024-02-18 4 M 0 214 0 D Common Stock 214 28708 D Restricted Stock Units (RSUs) - 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. 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. /s/ Tray Feanny 2024-02-20