 Alliancebernstein L.P. decreased its holdings in shares of Healthcare Services Group, Inc. NASDAQ:HCSG by 10.9 in the 1st quarter, according to the company in its most recent 13F filing with the Securities Exchange Commission. The firm owned 183,377 shares of the business services providers stock after selling 22,431 shares during the quarter. Alliancebernstein L.P.s ... 