 Charles Schwab Investment Management Inc. decreased its position in MBIA Inc. NYSE:MBI by 3.7 in the 4th quarter, HoldingsChannel reports. The firm owned 1,483,563 shares of the insurance providers stock after selling 56,895 shares during the period. Charles Schwab Investment Management Inc.s holdings in MBIA were worth 13,798,000 at the end of the most recent ... 