Mirae Asset Global Investments Co. Ltd. boosted its holdings in shares of PTC Therapeutics, Inc. (NASDAQ:PTCT – Get Rating) by 3.1% in the fourth quarter, HoldingsChannel reports. The firm owned 32,344 shares of the biopharmaceutical company’s stock after buying an additional 965 shares during the period. Mirae Asset Global Investments Co. Ltd.’s holdings in PTC […]