X0508 4 2025-11-17 0001428439 ROKU, INC ROKU 0001767033 Ozgen Mustafa C/O ROKU, INC. 1173 COLEMAN AVE. SAN JOSE CA 95110 0 1 0 0 Pres, Devices, Prod, and Tech 0 Class A Common Stock 2025-11-17 4 M 0 16149 0 A 16149 D Class A Common Stock 2025-11-17 4 F 0 6357 96.89 D 9792 D Restricted Stock Unit 2025-11-17 4 M 0 4910 0.0 D Class A Common Stock 4910 14729 D Restricted Stock Unit 2025-11-17 4 M 0 6789 0.0 D Class A Common Stock 6789 47529 D Restricted Stock Unit 2025-11-17 4 M 0 4450 0.0 D Class A Common Stock 4450 48956 D Represents shares that have been withheld by the Issuer to satisfy income tax withholding and remittance obligations in connection with the vesting of certain RSU awards on November 17, 2025. Each RSU represents a contingent right to receive one share of Class A Common Stock of the Issuer. This RSU vests in twelve substantially equal quarterly installments. The first installment vested on November 15, 2023. This RSU vests in twelve substantially equal quarterly installments. The first installment vested on November 15, 2024. This RSU vests in twelve substantially equal quarterly installments. The first installment vested on November 15, 2025. /s/ Renee Strandness, attorney-in-fact 2025-11-19