 Ahrens Investment Partners LLC boosted its holdings in Guggenheim Taxabl Mncpl Mngd Drtn Trst NYSE:GBAB by 23.3 during the fourth quarter, according to its most recent Form 13F filing with the Securities Exchange Commission. The fund owned 21,700 shares of the investment management companys stock after acquiring an additional 4,100 shares during the period. ... 