AGTC > GSK discloses 14% stake in AGTC http://whalewisdom.com/schedule13d/view/glaxosmithkline-plc-sc-13d-2014-04-07-agtc Ridgeback Capital discloses 7.7% ownership http://whalewisdom.com/schedule13d/view/ridgeback-capital-investments-lp-sc-13g-2014-04-10-agtc