Exhibit 99.1 Starz Entertainment Corp. Reports Results for the Third Quarter Ended September 30, 2025 Third Quarter Revenue was $320.9 Million Third Quarter Operating Loss was$(34.8) Million Third Quarter Adjusted OIBDA was $21.8 Million Total Revenue, OTT Revenue, and U.S. OTT Subscriber Growth U.S. OTT Subscriber Growth of 520,000 YTD and 670,000 YoY Engagement on STARZ App Reached 12-Month High During Period Management Reiterates All Previously Provided 2025 Outlook SANTA MONICA, CA, and VANCOUVER, B.C. ...