Former NASA engineer Briskman, who designed the company's satellite technology, was then appointed chairman and CEO. In April 1992, Rothblatt resigned as chairman and CEO to start a medical research foundation. The company was the first to petition the FCC to assign unused frequencies for satellite radio broadcast, which 'provoked a furor among owners of both large and small radio stations'.

In 1990, Rothblatt founded Satellite CD Radio in Washington, D.C. Co-founder David Margolese served as chief executive officer and Robert Briskman served as president and Chief Operating Officer. Sirius Satellite Radio was founded by Martine Rothblatt, who served as the new company's chairman of the board. Sirius XM Radio is a primary entry point for the Emergency Alert System. Īs of 11 April 2021, Sirius XM had approximately 34.9 million subscribers. Since then, SiriusXM has grown to be the largest audio entertainment company in North America. In September 2018, the company agreed to purchase the streaming music service Pandora, and this transaction was completed on 1 February 2019. Sirius and XM argued that a merger was the only way that satellite radio could survive. The proposed merger was opposed by those who felt it would create a monopoly. The merger created a company with 18.5 million subscribers, and the deal was valued at US$3.3 billion, not including debt. on July 29, 2008, 17 months after the companies first proposed it. Federal Communications Commission (FCC) approved the merger of XM Satellite Radio and Sirius Satellite Radio, Inc. a direct, wholly owned subsidiary of Sirius XM Holdings, Inc. was incorporated, and in January 2020, Sirius XM reorganized their corporate structure, which made Sirius XM Radio Inc. On May 21, 2013, Sirius XM Holdings, Inc. The company also has a 70% equity interest in Sirius XM Canada, an affiliate company that provides Sirius and XM service in Canada. It was formed by the 2008 merger of Sirius Satellite Radio and XM Satellite Radio, merging them into SiriusXM Radio. is an American broadcasting company headquartered in Midtown Manhattan, New York City that provides satellite radio and online radio services operating in the United States.

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