U.S. RESEARCH ROUNDUP-Adtran, Pandora Media, Blue Bird
December 17, 2015 at 09:30 AM EST
Dec 17 (Reuters) - Wall Street securities analysts revised their ratings and price targets on several U.S.-listed companies, including Hilltop Holdings, Ignyta and Pandora Media, on Thursday. HIGHLIGHTS * Apple : RBC cuts target price to $140 from $150; rating outperform * Geron Corp : Janney starts with buy * Blue Bird Corp : Stifel starts with buy; target price $14 * Pandora Media Inc : Albert Fried & Company raises to overweight from underweight * Adtran :