Pandora was an early pioneer in streaming music, and grew its user base to more than 80 million people, most of whom used the free version of its web radio service. But Pandora has struggled to generate enough advertising revenue to cover the cost of the free service.
Meanwhile, music listeners have begun gravitating to the on-demand subscription services of Spotify, Apple and others, which offer ad-free access.
Earlier this year, Pandora rolled out its version of a subscription service. But Sirius appears uninterested in Pandora’s new offering.