 Alliancebernstein L.P. grew its holdings in Heron Therapeutics Inc NASDAQ:HRTX by 107.5 during the first quarter, Holdings Channel.com reports. The firm owned 260,630 shares of the biotechnology companys stock after acquiring an additional 135,030 shares during the quarter. Alliancebernstein L.P.s holdings in Heron Therapeutics were worth 3,060,000 as of its most recent SEC filing. Several ... 