 Alliancebernstein L.P. increased its position in shares of Concrete Pumping Holdings Inc NASDAQ:BBCP by 37.7 in the first quarter, according to its most recent 13F filing with the Securities Exchange Commission. The institutional investor owned 15,700 shares of the companys stock after purchasing an additional 4,300 shares during the quarter. Alliancebernstein L.P.s holdings in ... 