IBERIABANK Corporation IBKC, holding company of the 122-year-old IBERIABANK (www.iberiabank.com) and IBERIABANK fsb (www.IBERIABANKfsb.com), announced income available to common shareholders of $106 million for the quarter ended December 31, 2009, an increase of 340% compared to the third quarter of 2009 ("linked quarter basis").