 Alliancebernstein L.P. boosted its position in Alector Inc NASDAQ:ALEC by 22.9 during the fourth quarter, according to its most recent 13F filing with the SEC. The firm owned 30,100 shares of the companys stock after acquiring an additional 5,600 shares during the period. Alliancebernstein L.P.s holdings in Alector were worth 519,000 as of its most ... 