Investor Presentaiton

Pro Forma Loan and Deposit Composition Based on 2Q 2017 Regulatory Balance Sheet 1-4 family and CRE form the biggest components of Gibraltar's loan portfolio; as a result, pro forma mix for IBERIABANK is largely unchanged Gibraltar has an attractive deposit base, with a focus private banking and asset management clientele Total Deposits Total Loans CRE, 31% IBERIABANK Gibraltar Multi Family 2% C&I, 23% Consumer, 3% Other, 4% CRE 14% C&I 4% CRE, 30% Consumer 1% LC&D, 7% 1-4 Family 71% C&D 8% 1-4 Family, 29% Multi/ Family, 3% Total Loans: $19.8 billion Total Loans: $1.4 billion Jumbo CDs, 4% Retail CDs, 8% Transaction, 42% MMDA & Savings, 46% Total Deposits: $21.2 billion Non-Interest Bearing Deposits: 26% Source: SNL Financial, FFIEC Call Reports Note: Regulatory financial data as of June 30, 2017. IBKC pro forma for Sabadell acquisition excluding purchase accounting adjustments MMDA & Savings, 62% Jumbo CDs, 7% Retail CDs, 8% Transaction, 23% Multi Family, 3% Pro Forma C&I, 22% Consumer, 3% Other, 3% LC&D, 7% 1-4 Family, 32% Total Loans: $21.2 billion Jumbo CDs, 4% Retail CDs, 8% Transaction, 41% MMDA & Savings, 47% Total Deposits: $1.1 billion Non-Interest Bearing Deposits: 27% Total Deposits: $22.3 billion Non-Interest Bearing Deposits: 26% 9 IBERIABANK Corporation

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