 Citigroup Inc. lowered its holdings in Harsco Co. NYSE:HSC by 39.3 in the 1st quarter, according to the company in its most recent filing with the SEC. The firm owned 30,171 shares of the industrial products companys stock after selling 19,541 shares during the quarter. Citigroup Inc.s holdings in Harsco were worth 210,000 at the ... 