X0508 4 2025-11-17 0001428439 ROKU, INC ROKU 0001951665 Collier Charles C/O ROKU, INC. 1173 COLEMAN AVE. SAN JOSE CA 95110 0 1 0 0 President, Roku Media 1 Class A Common Stock 2025-11-17 4 M 0 29340 0 A 29540 D Class A Common Stock 2025-11-17 4 F 0 14979 96.89 D 14561 D Class A Common Stock 2025-11-18 4 S 0 7181 94.96 D 7380 D Class A Common Stock 2025-11-18 4 S 0 3590 94.94 D 3790 D Class A Common Stock 2025-11-18 4 S 0 3590 95.09 D 200 D Class A Common Stock 600 I Charles D. Collier Revocable Trust Restricted Stock Unit 2025-11-17 4 M 0 29340 0.00 D Class A Common Stock 29340 117359 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. Shares sold pursuant to Mr. Collier's 10b5-1 plan. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $94.61 to $95.60 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $94.62 to $95.60 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $95.00 to $95.36 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Each RSU represents a contingent right to receive one share of Class A Common Stock of the Issuer. This RSU vests in sixteen substantially equal quarterly installments. The first installment vested on March 1, 2023. /s/ Renee Strandness, attorney-in-fact 2025-11-19