X0306 5 2017-12-31 0 0 0 0000933141 IBERIABANK CORP IBKC 0001429629 ARDOIN ELIZABETH A 200 WEST CONGRESS STREET LAFAYETTE LA 70501 0 1 0 0 SR EXECUTIVE VICE PRESIDENT COMMON STOCK 30606 D COMMON STOCK 54.2996 I BY 401K STOCK OPTIONS 54.43 2010-12-29 2019-12-29 COMMON STOCK 4300 4300 D STOCK OPTIONS 60.1 2011-05-04 2020-05-04 COMMON STOCK 2736 2736 D STOCK OPTIONS 55.64 2012-03-10 2021-03-10 COMMON STOCK 1369 1369 D STOCK OPTIONS 52.33 2013-02-22 2022-02-22 COMMON STOCK 7001 7001 D STOCK OPTIONS 52.36 2014-02-19 2023-02-19 COMMON STOCK 2273 2273 D STOCK OPTIONS 65.37 2015-02-17 2024-02-17 COMMON STOCK 2377 2377 D STOCK OPTIONS 62.57 2016-02-20 2025-02-20 COMMON STOCK 2579 2579 D STOCK OPTIONS 47.35 2017-02-18 2026-02-18 COMMON STOCK 2902 2902 D STOCK OPTIONS 85.6 2018-02-15 2027-02-15 COMMON STOCK 564 564 D ELIZABETH A. ARDOIN 2018-02-09