China Universal Asset Management Co. Ltd. lessened its stake in Microsoft Co. ( NASDAQ:MSFT – Get Rating ) by 50.5% during the 1st quarter, Holdings Channel.com reports. The firm owned 56,550 shares of the software giant’s stock after selling 57,676 shares during the quarter. Microsoft accounts for 6.2% of China Universal Asset Management Co. Ltd.’s investment portfolio, making the stock its biggest holding. China Universal Asset Management Co. Ltd.’s holdings in Microsoft were worth $17,435,000 at the end of the most recent reporting period. Several other institutional investors and hedge funds also recently added to or reduced their stakes in…