 Ladenburg Thalmann Financial Services Inc. increased its holdings in Blackrock Utlts InfraPwr Oprtnt Trst NYSE:BUI by 23.0 during the 4th quarter, according to its most recent Form 13F filing with the Securities and Exchange Commission SEC. The fund owned 26,512 shares of the real estate investment trusts stock after purchasing an additional 4,956 shares during ... 