 Great West Life Assurance Co. Can trimmed its position in Harsco Co. NYSE:HSC by 7.3 in the second quarter, Holdings Channel.com reports. The firm owned 95,302 shares of the industrial products companys stock after selling 7,473 shares during the period. Great West Life Assurance Co. Cans holdings in Harsco were worth 1,286,000 at the end ... 