 Cetera Advisor Networks LLC lessened its stake in BlackRock Floating Rate Income SFI NYSE:FRA by 4.7 in the fourth quarter, HoldingsChannel.com reports. The institutional investor owned 52,782 shares of the investment management companys stock after selling 2,582 shares during the quarter. Cetera Advisor Networks LLCs holdings in BlackRock Floating Rate Income SFI were worth 708,000 ... 