 Alliancebernstein L.P. decreased its holdings in shares of First Community Bankshares Inc NASDAQ:FCBC by 5.2 in the fourth quarter, according to the company in its most recent 13F filing with the Securities and Exchange Commission SEC. The firm owned 10,900 shares of the banks stock after selling 600 shares during the period. Alliancebernstein L.P. owned ... 