A jury has found that concert giant Live Nation and its Ticketmaster subsidiary engaged in an anticompetitive monopoly

Shares of Live Nation sank on Wednesday after a jury found that the Ticketmaster parent had acted as an illegal monopoly over the ticketing industry, according to reports.

Live Nation, which operates the Ticketmaster platform, has been determined to be a monopoly. A federal jury handed down its decision today that the company violated federal and state antitrust rules.

After the blockbuster trial that went from the U.S. Department of Justice to 34 states, a jury has decided that Live Nation Entertainment and its subsidiary Ticketmaster illegally held monopoly power in the ticketing market.

Live Nation, the entertainment giant which owns Ticketmaster, has been illegally operating as a monopoly, a federal jury has found. The verdict followed four days of deliberations in a trial that could have a major impact on the music industry.

The case, initially led by the Justice Department, could pave the way for a breakup of entertainment giant Live Nation and Ticketmaster.

The verdict paves the way for more than 30 states to seek measures curbing the company’s power, including a possible breakup.

A jury found Live Nation and Ticketmaster operated as a monopoly in its dominance of the live events and ticketing industry, validating complaints that the industry giant was stifling competition and driving up fees for fans.