According to CNBC, the stock initially bounced between gains and losses of nearly 5 percent after hours.
KKR — an investment firm known for its private equity and hedge funds — will invest $150 million in Pandora in exchange for new shares of preferred stock, the companies said on Monday. KKR could up the deal, which must be reviewed by regulators, to $250 million, the companies said.
KKR's Richard Sarnoff will also join Pandora's board — but two other directors will leave. Venture capitalist James M. P. Feuille and technology investor Peter Gotcher will resign from Pandora's board, and a committee will appoint new directors, Pandora said.
"Having secured a significant financial commitment from KKR to strengthen the Company's balance sheet, we have positioned the Company to evaluate any potential strategic alternatives, including a sale, in the 30 days before the financing is set to close," outgoing director Feuille said in a statement.
With more competition than ever, the streaming company has faced challenges turning a profit. Corvex Management, a hedge fund run by Keith Meister, had previously pushed Pandora to sell some of its assets, while SiriusXM has been suggested separately as a potential buyer.
Still, Pandora lost less money per share than Wall Street was expecting in the first quarter.
Corvex, which holds almost 10 percent of the stock, has urged Pandora to improve its performance or sell. Sirius XM Holdings Inc., the satellite-radio provider controlled by billionaire John Malone, has sometimes expressed interest in doing a deal for Pandora, though executives have downplayed their desire for a merger on other occasions.
Pandora said after markets closed its first-quarter loss widened to $132.3 million while revenue grew 6.3 percent to $316 million, shy of analysts’ estimates. The loss of 24 cents excluding some items was smaller than the 34-cent average of analysts’ estimates.
Pandora posted an adjusted loss of 24 cents per share, excluding items, on revenue of $316 million on Monday. That's compared to 34 cents per share on revenue of $318 million expected by a Thomson Reuters consensus estimate. The results showed a 6 percent revenue increase from a year ago.
The shakeup presents yet another twist in the company's quest to become profitable by the end of this year amid a "rapidly changing, complex market."
Pandora's active listeners were 76.7 million at the end of the first quarter of 2017, down from 79.4 million a year ago.