 Alliancebernstein L.P. trimmed its position in Advanced Energy Industries, Inc. NASDAQ:AEIS by 0.3 during the first quarter, according to its most recent 13F filing with the Securities and Exchange Commission SEC. The firm owned 64,889 shares of the electronics makers stock after selling 207 shares during the period. Alliancebernstein L.P. owned approximately 0.17 of Advanced ... 