First Mercantile Trust Co. decreased its position in Taiwan Semiconductor Manufacturing Company Limited (NYSE:TSM – Get Rating ) by 12.8% in the third quarter, Holdings Channel reports. The institutional investor owned 7,240 shares of the semiconductor company’s stock after selling 1,060 shares during the period. First Mercantile Trust Co.’s holdings in Taiwan Semiconductor Manufacturing were worth $808,000 as of its most recent filing with the SEC. A number of other institutional investors and hedge funds have also recently added to or reduced their stakes in TSM. Patriot Financial Group Insurance Agency LLC grew its position in shares of Taiwan Semiconductor…