First Mercantile Trust Co. lowered its holdings in Comcast Corporation (NASDAQ:CMCSA) by 16.2% in the 2nd quarter, according to the company in its most recent filing with the SEC. The firm owned 89,001 shares of the cable giant's stock after selling 17,175 shares during the quarter. Comcast Corporation makes up about 0.6% of First Mercantile [...]