shares of atara biotherapeutics inc climbed in tuesdays afterhours market following news the company entered into a royalty interest financing agreement with healthcare royalty the deal will see atara receive 31 million while healthcare royalty will receive rights to specified royalties and milestones for ebvallo in europe and other territories covered by ataras commercialization agreement with pierre fabre total royalties and milestones are capped between 185 and 250 of healthcare royaltys total investment amount atara said atara also said it retains certain existing milestone payments from pierre fabre at 550 pm et shares of atara gained 1142 to 390 per share the stock finished the days regular session with a 23 gain closing at 350 per share year to date the stock is down by more than 77