Exhibit 99.1 SiriusXM Reports First Quarter 2024 Operating and Financial Results • First Quarter 2024 Revenue of $2.16 Billion; Up 1$265 Million; Diluted EPS of $0.07 • Adjusted EBITDA of$650 Million; Up 4% Year-Over-Year • Free Cash Flow of $132 Million; Down 8% Year-Over-Year • Company Reiterates 2024 Financial Guidance NEW YORK – April 30, 2024 – SiriusXM today announced first quarter 2024 operating and financial results, including reven ...