 Citigroup Inc. cut its position in Blackrock Taxable Municipal Bond Trust NYSE:BBN by 40.2 in the fourth quarter, HoldingsChannel.com reports. The firm owned 20,924 shares of the investment management companys stock after selling 14,047 shares during the quarter. Citigroup Inc.s holdings in Blackrock Taxable Municipal Bond Trust were worth 509,000 at the end of the ... 