Exhibit 99.1 Fellow Shareholders, October 30, 2025 • Total net revenue was $1.211 billion, up 14$1.065 billion, up 17% YoY • Gross profit was $525 million, up 9% YoY • Streaming Hours were 36.5 billion, up 4.5 billion hours YoY • The Roku Channel remained the #2 app on our platform by engagement in the U.S. Platform We delivered strong Q3 results, achieving positive operating income ahead of schedule and for the first time since 2021. Platform revenue grew 17% Y ...