Check out which companies are making headlines after the bell Monday:
Pandora - The Internet radio company filed a 14 million share secondary offering through JPMorgan and Morgan Stanley. Shares tumbled in extended-hours trading.
Outerwall - The movie and game rental kiosk company cut its current-quarter and full-year outlook. In addition, the company said it plans an additional $100 million in buybacks. Shares plunged sharply in extended-hours trading after being temporarily halted following the news. The company was formerly known as Coinstar.