Whether or not you expect to attend the Annual Meeting, please vote by Internet or telephone, or complete the enclosed proxy and return promptly in the postage–paid envelope provided. If you vote by Internet or telephone, use the instructions on the enclosed proxy card. If you attend the Annual Meeting, you may vote either in person or by proxy. Any proxy previously executed may be revoked by you in writing or in person at any time prior to its exercise.

This Proxy Statement is being furnished to our shareholders in connection with the solicitation of proxies by the Board of Directors for use at the 2018 Annual Meeting of Shareholders to be held on May 9, 2018, or at any adjournments or postponements thereof (the “Annual Meeting”). We sometimes refer to IBERIABANK Corporation in this Proxy Statement as the “Company,” “IBKC,” “we,” “us,” or “our.”

Your proxy will be voted in the manner you specify if you vote properly and timely by the Internet or telephone or if you complete and return the enclosed proxy card. You

may revoke your proxy by notifying our Secretary in writing, by delivering a properly executed proxy of later date (either in writing, telephonically, or via the Internet) to the Secretary at or before the Annual Meeting, or by voting in person at the Annual Meeting.

This Proxy Statement was mailed on or about April 9, 2018, to each shareholder of record at the voting record date.

This Proxy Statement provides an overview of matters that are very important to our shareholders and the continued success of our business. During 2017, we worked diligently to achieve the specific financial goals of the Company, which included loan and deposit growth, improving asset quality, maximizing operating efficiencies, strengthening fee income businesses and deploying excess capital. As described below, we made progress towards achieving some of these goals and encountered setbacks in others. To the extent that we have not met the goals that we set forth for the Company, we have already taken action to address our shortfalls and have set clear priorities for 2018, remaining highly focused on maximizing shareholder returns, ensuring alignment between performance and executive compensation, and maintaining shareholder governance best practices consistent with our successful business model and risk tolerance.

For 2017, the Company earned $2.59 per share of GAAP EPS and $4.47 per share on a core basis, compared to $4.30 and $4.43 in 2016, respectively. At year-end, our total assets grew to $27.9 billion, or 29% higher than year-end 2016. We are now operating in 11 states, in 33 metropolitan statistical areas (“MSA”), with a meaningful presence in the top 5 MSAs in the

Southeastern United States. The total market capitalization of our Company rose from $3.8 billion at year-end 2016 to almost $4.2 billion at year-end 2017, an 11% increase.

Results in 2017 were primarily impacted by the acquisition of Sabadell United Bank, N.A. (“Sabadell United”) from Banco de Sabadell, S.A. (“Banco Sabadell”) on July 31, 2017 for total consideration of $1.0 billion. This acquisition expanded our presence in Southeast Florida, specifically Miami, the largest MSA in Florida. The acquisition added $4.0 billion in loans and $4.4 billion in deposits after preliminary fair value adjustments. The Company successfully completed the conversion of branch and operating systems associated with the acquisition during October of 2017. The Company incurred acquisition and conversion (collectively, “merger-related”) expenses of $41.0 million during 2017 related to the acquisition of Sabadell United.

In addition, 2017 results were impacted by the enactment of the Tax Cuts and Jobs Act (the “Tax Act”) on December 22, 2017. The Tax Act resulted in significant corporate tax reform, including a reduction of the corporate income tax rate from 35% to 21% effective January 1, 2018, and changes in business deductions,

among others. Under U.S. GAAP, recognition of the effects of tax law changes is required in the period of enactment, the most significant of which was remeasuring our deferred tax assets and liabilities, resulting in a $51.0 million increase to 2017 income tax expense. The full impact of the Tax Act is still being determined, and final determinations could result in changes to the provisional $51.0 million income tax expense reported, which will be recorded within one year (the “measurement period”) of the enactment date of the Tax Act, in accordance with recent SEC guidance.

The “Compensation Discussion and Analysis” section of this Proxy Statement provides a summary of our results compared to peers. Highlights of our focused efforts in 2017 are summarized below:

Shareholder Focus

Efficiency

Asset Quality

Balance Sheet Strength

Other Notable Achievements

Our focus on continuous improvement in financial results over the last several years is similar to our focus on corporate governance and compensation matters, as evidenced by the following actions:

2008—Adopted over-boarding restrictions, board resignation policy, stock ownership guidelines, and director education programs;

2009—Established Board Risk Management Committee;

2011—Implemented annual voting on say-on-pay;

2012—Adopted majority voting policy for uncontested elections;

2013—Adopted compensation recovery (“claw-back”) policy, committed to de-clawing blank check preferred stock, and finalized our mandatory director retirement age policy;

2014—Restructured executive compensation programs to be more quantitative and less qualitative; introduced performance based long-term incentives; modified compensation benchmarking; publicly disclosed incentive metrics; commenced investor outreach; and

2016—Adopted 2016 Stock Incentive Plan, incorporating changes based on investor feedback.

We believe well-designed compensation programs tie executive pay and performance through short-term and long-term incentives that are appropriately structured to manage the overall risk of the Company. Feedback from our shareholder engagement and outreach led us to make changes in our executive compensation program in 2016, including redesigning our short-term and long-term incentive programs, improving transparency associated with these programs, and providing greater weighting toward performance-based compensation.

In addition, our Board is focused on Board refreshment and enhanced committee rotation. We recently implemented corporate governance policy changes including raising stock ownership guidelines, prohibiting new 280G excise tax gross-ups, moving to “double-trigger” mechanisms in new change-in-control severance agreements, and restricting pledging of Company stock. We recognize the importance to our shareholders of appropriate risk management and Board independence.

This year, we are asking our common shareholders to vote on three important matters:

Our Corporate Governance Guidelines, Codes of Ethics, Conflicts of Interest Policies, and Board Committee charters are available on the “Investor Relations” portion of the Company’s website at www.iberiabank.com under “Resources” and then “Corporate Governance”.

Importantly, we listen to our shareholders, we value your support, and we encourage you to share your opinions and suggestions with us. You can reach us by e-mail at investor@iberiabank.com, call us at 337-521-4012, or write to us at IBERIABANK Corporation, c/o Investor Relations, 200 West Congress Street, 12th Floor, Lafayette, LA 70501.

You may vote if you were a holder of record of IBERIABANK Corporation (“IBKC” or the “Company”) common stock at the close of business on March 21, 2018, which is the record date of the Annual Meeting. Each share of common stock entitles its holder to one vote on each matter to be voted on at the Annual Meeting. Holders of our outstanding shares of preferred stock do not have voting rights at the Annual Meeting.

Participants in our Retirement Savings Plan (the “Plan”) will receive a Voting Authorization Form for the common stock owned through the Plan. If you hold shares as a participant in the Plan and you do not provide the Plan trustees with voting instructions on any matter (either by not returning a Voting Authorization Form or voting by phone or online or due to incomplete voting instructions) and you do not vote in person by attending the Annual Meeting, your shares will be voted in the same proportion as the shares for which voting instructions were provided by other participants. The Voting Authorization Form will serve as voting instructions for trustees of the Plan.

You may vote on:

The Board recommends that you vote:

If you are a holder of record of IBKC common stock, you may vote in person at the Annual Meeting. We will give you a ballot at the Annual Meeting.

If you do not wish to vote in person or if you will not be attending the Annual Meeting, you may vote by proxy. If you received a printed copy of these proxy materials by mail, you may vote in one of the following three ways:

If you vote by mail, your proxy must be received by 11:00 a.m., Central Time, on May 9, 2018, to be counted.

You may vote on the Internet or by telephone any time prior to 1:00 a.m., Central Time, on May 9, 2018.

We provide Internet proxy voting to allow you to vote your shares on-line, with procedures designed to ensure the authenticity and correctness of your proxy vote instructions. However, please be aware that you must bear any costs associated with your Internet access, such as usage charges from Internet access providers and telephone companies.

If you are a beneficial owner of shares of IBKC common stock held in street name (i.e., your shares are held by a broker) and you received a printed copy of these proxy materials by mail, you should have received a voting instruction card with these proxy materials from the organization that is the record owner of your shares rather than from us. Beneficial owners that received a printed copy of these proxy materials by mail from the record owner may complete and mail that voting

instruction card or may vote by telephone or over the Internet as instructed by that organization in the voting instruction card. Beneficial owners that received a notice by mail from the record owner should follow the instructions included in the notice to view the Proxy Statement and transmit their voting instructions. If you provide specific voting instructions, your broker or nominee will vote your shares as you direct.

A beneficial owner planning to vote in person at the Annual Meeting must obtain a valid proxy from the record owner. To request the requisite proxy form, follow the instructions provided by your broker or contact your broker.

If you are a holder of record of shares of IBKC common stock, you may change your vote or revoke your proxy at any time before your shares are voted at the Annual Meeting by:

Directors are elected by a plurality of the votes cast (Proposal I). Shareholders may vote “FOR” or “WITHHOLD” authority to vote for each nominee for the Board of Directors. If you withhold authority to vote with respect to any nominee, your shares will be counted for purposes of establishing a quorum, but will have no effect on the election of that nominee.

Our Board has adopted a majority voting policy which applies to an uncontested election of directors. Under this policy, any nominee for director who receives a greater number of votes “WITHHOLD” from his or her election than votes “FOR” such election is required to promptly tender his or her resignation following certification by the Secretary of the shareholder vote. The Nominating and Corporate Governance Committee would then consider the resignation and make a recommendation to our Board as to the action to be taken. This policy does not apply in contested elections. For more information, see “Proposal I—Election of Directors—Majority Voting for Directors; Director Resignation Policy.”

The affirmative vote of a majority of the votes actually cast is required for: (i) ratification of the appointment of the independent registered public accounting firm (Proposal II), and (ii) the approval, on an advisory basis, of the compensation of the Named Executive Officers (Proposal III). Shareholders may vote “FOR,” “AGAINST,” or “ABSTAIN” on Proposal II and Proposal III. If you abstain from voting on Proposal II or III, your shares will be counted as present for purposes of establishing a quorum, but will not be counted as a vote cast for the proposal and will have no effect on the proposal.

If you are the registered holder of IBKC common stock and you sign and submit your proxy card without voting instructions, your shares will be counted for purposes of establishing a quorum, and will be voted “FOR” each director nominee and “FOR” each of Proposals II and III.

No. You may not accumulate your vote for the election of directors.

A broker “non-vote” occurs when your broker submits a proxy for your shares but does not indicate a vote for a particular proposal because the broker does not have discretionary authority to vote and has not received specific instructions from you. Under the rules of the New York Stock Exchange, if your broker holds your shares (i.e., your shares are held in “street name”) and delivers this Proxy Statement to you, the broker generally has authority to vote the shares on “routine” matters. Proposal II is a matter we believe will be considered “routine”; even if the broker does not receive instructions from you, the broker is entitled to vote your shares in connection with Proposal II. The other Proposals (I and III) are matters we believe will be considered “non-routine;” the broker is not entitled to vote your shares without instructions. Shares held in street name which have been designated by brokers as not voted (“broker non-votes”) will not be counted as votes cast. Broker non-votes, however, will be treated as shares present for purposes of determining a quorum. Brokers who are not members of the New York Stock Exchange may not be able to exercise discretionary authority with respect to even routine items depending on the rules of the exchange or market of which the broker is a member.

At the close of business on March 21, 2018, which is the record date for the Annual Meeting, there were 53,988,483 shares of IBKC common stock, par value $1.00 per share, outstanding and entitled to vote.

The presence, in person or by proxy, of the holders of a majority of our total voting power will constitute a quorum at the Annual Meeting. Only shareholders of record at the close of business on March 21, 2018, are entitled to notice of, and to vote at, the Annual Meeting.

Proxy instructions, ballots, and voting tabulations that identify individual shareholders are handled in a manner that protects your voting privacy. Your vote will not be disclosed either within the Company or to third parties, except: (1) as necessary to meet applicable legal requirements, (2) to allow for the tabulation of votes and certification of the vote, and (3) to facilitate a successful proxy solicitation.

The form of proxy confers discretionary authority on the persons named therein to vote with respect to the election of any person as a director where the nominee is unable to serve or for good cause will not serve. It also confers discretionary authority with respect to matters incident to the conduct of the Annual Meeting and with respect to any other matter presented to the Annual Meeting if notice of such matter has not been delivered to us in accordance with our Articles of Incorporation. Except for procedural matters incident to the conduct of the Annual Meeting, we do not know of any other matters that are to come before the Annual Meeting. If any other matters are properly brought before the Annual Meeting as to which proxies in the accompanying form confer discretionary authority, the persons named in the accompanying proxy will vote the shares represented by such proxies on such matters as determined by a majority of the Board of Directors.

We will pay the entire cost of preparing, assembling, printing, mailing, and distributing these proxy materials and soliciting votes. If you choose to access the proxy

materials and/or vote over the Internet, you are responsible for Internet access charges you may incur. If you choose to vote by telephone, you are responsible for telephone charges you may incur. Additional solicitations of proxies or votes may be made in person, by telephone, or by electronic communication by our directors, officers, and other regular associates, who will not receive any additional compensation for such solicitation activities. We also have hired Georgeson LLC to assist us in the distribution of proxy materials. We will pay Georgeson LLC a fee of $8,500 plus customary costs and expenses for these services, and we will indemnify Georgeson LLC against any losses arising out of Georgeson LLC’s proxy solicitation services on our behalf. We will reimburse brokerage houses and other custodians, nominees and fiduciaries for their reasonable expenses for forwarding materials to the beneficial owners of shares held of record by others.

We will disclose voting results in a Current Report on Form 8-K to be filed with the Securities and Exchange Commission (“SEC”) within four business days after the Annual Meeting, which will also be available on our website. We will also disclose in the Form 8-K how frequent the Company will hold future non-binding advisory votes on executive compensation.

Shareholder proposals submitted for inclusion in our 2018 Proxy Statement must have been received in writing by our Secretary no later than the close of business on December 8, 2017. Shareholder proposals submitted outside the process for inclusion in the Proxy Statement must have been received from shareholders of record no later than March 10, 2018.

A single proxy statement and 2017 Annual Report to Shareholders, along with multiple proxy cards representing each shareholder account, will be delivered in one envelope to certain multiple shareholders having the same last name and address and to certain individuals

with more than one account registered at Computershare with the same address unless contrary instructions have been received from an affected shareholder.

If you would like to enroll in this service or receive individual copies of all documents, now or in the future,

please contact Computershare by calling 1-800-368-5948 or writing Computershare, P.O. Box 505000, Louisville, KY 40233. We will promptly deliver a separate copy of all documents to a shareholder at a shared address to which a single copy of the documents was delivered upon request to Computershare.

Our Articles of Incorporation provide that the Board of Directors will be divided into three classes, as nearly equal in number as possible, with each class elected by the shareholders for staggered three-year terms. At the Annual Meeting, shareholders will be asked to elect one class of directors, consisting of four directors, for three-year terms expiring in 2021. The nominees of the Nominating and Corporate Governance Committee of the Board of Directors are currently directors and have not been nominated pursuant to any other arrangement or understanding with any person. Shareholders are not entitled to cumulate their votes for the election of directors.

Our Bylaws currently provide for a Board of 11 persons. No person shall be eligible for nomination or election as a director who shall have attained the age of 76 years.

Unless otherwise directed, each proxy executed and returned by a shareholder will be voted “FOR” the election of the four nominees listed below. In the

unanticipated event that any nominee is unable or unwilling to stand for election at the time of the Annual Meeting, the Bylaws provide that the number of authorized directors will be automatically reduced by the number of such nominees unless the Board determines otherwise, in which case proxies will be voted for any replacement nominee or nominees recommended by the Nominating and Corporate Governance Committee. At this time, the Nominating and Corporate Governance Committee knows of no reason why any of the nominees might be unable to serve, if elected.

Consistent with our Corporate Governance Guidelines, the Nominating and Corporate Governance Committee seeks to nominate candidates with diverse experiences and perspectives who have the ability to contribute to some aspects of our business and a willingness to make the significant commitment of time and effort required of our directors. Community involvement and leadership are important criteria for our Board members. Each of the nominees listed below possesses these attributes.

In 2012, the Board of Directors approved an amendment to our Corporate Governance Guidelines regarding majority voting for directors. The Board reviewed corporate governance developments and an interested shareholder proposal on the subject of majority voting in the election of directors. The Board concluded that when shareholder “WITHHOLD” votes exceed “FOR” votes with regard to a director nominee, the Nominating and Corporate Governance Committee and the Board should carefully consider and assess whether it would be appropriate for the director nominee to remain on the Board.

As amended, the Corporate Governance Guidelines provide that in an uncontested director election, any nominee for director who receives a greater number of votes “WITHHOLD” from his or her election than votes “FOR” such election (a “Majority Withheld Vote”) would promptly tender his or her resignation following certification by the Secretary of the shareholder vote. The current plurality vote standard will be retained for contested director elections (elections in which the number of director nominees exceeds the number of Board seats).

The Nominating and Corporate Governance Committee would promptly consider the resignation offer, and a

range of possible responses based on the circumstances that led to the Majority Withheld Vote, if known, and make a recommendation to the Board. The Board would act on the Committee’s recommendation within 90 days following certification of the shareholder vote.

If each member of the Committee received a Majority Withheld Vote at the same election, then the directors who did not receive a Majority Withheld Vote would consider the resignation offers and recommend to the Board whether to accept them. If four or fewer directors failed to receive a Majority Withheld Vote, all directors may participate in the action regarding the resignation offers. Any director who tenders his or her resignation pursuant to the Guidelines would not participate in the Committee’s recommendation or Board action regarding whether to accept his or her individual offer to resign. Thereafter, the Board would promptly disclose its decision-making process and decision regarding whether to accept the director’s resignation offer (or the reason(s) for rejecting the resignation offer, if applicable) in a Current Report on Form 8-K furnished to the SEC.

A link to the Corporate Governance Guidelines is on the “Investor Relations” portion of the Company’s website, at http://www.iberiabank.com.

Ernest P. Breaux, Jr.

• Resides in New Iberia, LA

• Director Since 1999

• 73 Years of Age

• Independent

• Committees: Board Risk, Investment (Chairman) and Nominating and Corporate Governance

Ernest P. Breaux, Jr. was the Chairman and Chief Executive Officer of Ernest P. Breaux Electrical, Inc., an electrical contracting company from 2005-2010 and a consultant to that company until 2013. The company, headquartered in New Iberia, Louisiana, specializes in all fields of electrical instruction. Mr. Breaux was also Chairman and Chief Executive Officer of Equipment Tool Rental and Supply, Inc., Iberia Investment Group, LLC, and Iberia Investments Land Holdings, LLC. Mr. Breaux retired in September 2010.

A native of New Iberia, Louisiana, Mr. Breaux was heavily involved in the electrical industry and within the communities he served. He continues to be an active member of the Institute of Electrical and Electronic Engineers, Louisiana Engineering Society (Registered Engineer), Associated Builders and Contractors (Past President) and the Iberia Industrial Development Foundation (Past Chairman). He is also a past member of the National Joint Apprenticeship Training Committee, Education Industry and Business Council (Past Co-Chairman), State of Louisiana Licensing Board for Contractors, State of Louisiana Work Force Development (under Governor Mike Foster) and the Vision 2000 Commission (City of New Iberia, Louisiana). From January 2011 to December 2013, he was a member of the Finance Committee of the Community Foundation of Acadiana.

His honors include the Patterson Award as Outstanding Electrical Apprentice of Southwest Chapter of NECA (NJATC) in 1967, Merit Shop Man of the Year (Associated Builders and Contractors) in 1992, the Integrity Award (Lafayette Better Business Bureau) in 1997, Outstanding Service as Chairman of Education, Industry and Business (Iberia Industrial Development Foundation) in 2001, Beam Club Award Recipient (ABC) in 2002 and the A.B. Paterson Medal for an Engineer in Management in 2005.

From 2001-2004, Mr. Breaux was Regional Operating Officer for Regions 1, 4 and Gulf Plains of Integrated Electrical Services, Inc. (“IES”). In August 2007, the SEC filed a complaint in the Southern District of Texas, Houston Division, against IES and certain of its former

officers and associates, including Mr. Breaux. The complaint alleged that the former officers and associates aided and abetted IES’s violations of Sections 13(a) and 13(b) (2) (A) of the Securities Exchange Act of 1934 and Rules 12b-20, 13a-1, and 13a-13 thereunder. On August 30, 2007, Mr. Breaux, without admitting or denying the alleged disclosure and accounting violations, agreed to settle the SEC’s action by consenting to a permanent injunction against future violations.

Mr. Breaux’s business experience and contacts in the local community are among his qualifications to serve on the Board of Directors and provide significant value to the Board.

Daryl G. Byrd

• Resides in New Orleans, LA

• Director Since 1999

• 63 Years of Age

• Not Independent

• Committees: Executive and Investment

Daryl G. Byrd is President and Chief Executive Officer of IBERIABANK Corporation and IBERIABANK, headquartered in Lafayette, Louisiana. He also serves on the Board of Directors of each organization.

A native of Columbia, South Carolina, Mr. Byrd began his banking career with Trust Company Bank of Georgia (now SunTrust) in 1980. In 1985, he moved from North Carolina having worked for BB&T, to Louisiana to lead commercial lending activities for First National Bank of Lafayette, a subsidiary of First Commerce Corporation. In 1990, Mr. Byrd was named President and CEO of Rapides Bank and Trust Company in Alexandria, another subsidiary bank of First Commerce Corporation. In 1992, he moved to First National Bank of Commerce, the lead bank for First Commerce Corporation, as Executive Vice President in charge of the commercial banking and mortgage banking groups. During his tenure in New Orleans with First Commerce, he also managed the strategic development for multiple businesses and had responsibility for other business lines and support functions. Following the First Commerce/Bank One merger, Mr. Byrd was named President and CEO of Bank One, Louisiana, New Orleans region. He joined IBERIABANK Corporation and IBERIABANK in mid-1999.

From January 2011 until December 2013, Mr. Byrd was the Federal Advisory Council representative for the Sixth District of the Federal Reserve System and a member of the Federal Advisory Council, which is composed of 12 representatives of the banking industry and consults with

and advises the Board of Governors of the Federal Reserve System on matters within the Board’s jurisdiction.

Some of Mr. Byrd’s current community and civic affiliations include: Eaglebrook School—Deerfield, Massachusetts, member board of trustees; The Order of St. John, member; New Orleans Jazz Orchestra, board; The University of Alabama, Culverhouse College of Commerce, Board of Visitors, member; and, Mid-Sized Bank Group, board.

Mr. Byrd earned a Bachelor of Science degree in Business Administration from Samford University in 1976 and a Master of Business Administration degree from the University of Alabama at Birmingham in 1978.

Mr. Byrd’s banking experience, his knowledge of our products and services and the regulatory environment in which we operate, as well as his relationships in the banking and financial industries, are among his qualifications to serve on the Board of Directors and provide significant value to the Board.

John N. Casbon

• Resides in New Orleans, LA

• Director Since 2001

• 69 Years of Age

• Independent

• Committees: Board Risk (Chairman), Compensation, and Nominating and Corporate Governance

John N. Casbon serves as Executive Vice President of First American Title Insurance Company, a member of The First American Corporation (NYSE: FAF) family of companies. He has been associated with FAF for over 30 years.

A Florida native, Mr. Casbon graduated from Florida State University with degrees in both Real Estate Finance and Hotel Management and a major in marketing. As a community leader, he works to encourage businesses to assume pro-active civic roles for the betterment and improvement of New Orleans, Louisiana. He founded the New Orleans Police Foundation in 1995 for the purpose of linking businesses with the police department. He is Past Chairman of the Board of the Police Foundation. Mr. Casbon serves or has served on the boards of the American Land Title Association, the LSU Department of Psychiatry Advisory Board, the Louisiana Trooper Foundation, the Business Council of New Orleans and the River Region and The New Orleans/River Region Chamber of Commerce, and The New Orleans Advocate newspaper. He is a member and currently serving as Chairman of the Louisiana World Presidents’ Organization of Louisiana. Mr. Casbon received the 1998 FBI Director’s

Community Leadership Award for his role in creating and leading the New Orleans Police Foundation, and was also the recipient of the Anti-Defamation League’s 1998 A.I. Botnick Torch of Liberty Award. He currently serves on the board of the Anti-Defamation League. In 1999, he was awarded the Mayor’s Medal of Honor, and in 2014, Mr. Casbon received the National Civil Rights Award from the National Urban League.

Mr. Casbon’s experience in the title insurance industry and his knowledge of and contacts in markets served by IBERIABANK are among his qualifications to serve on the Board of Directors and provide significant value to the Board.

John E. Koerner, III

• Resides in New Orleans, LA

• Director Since 2012

• 75 Years of Age

• Independent

• Committees: Audit, Board Risk and Nominating and Corporate Governance

John E. Koerner III has been the managing member of Koerner Capital, LLC, a private investment company, or the President of its predecessor, Koerner Capital Corporation, since 1995. From 1976 to 1995, he was President and co-owner of Barq’s, Inc. and its subsidiary, The Delaware Punch Company.

Mr. Koerner has been a director of Lamar Advertising Company since 2007, and is a member of that board’s audit and nominating and corporate governance committees. He serves on a number of other business boards, including Geocent, LLC and Adaptive Wireless Solutions. Mr. Koerner was a director of Legg Mason, Inc. from 1990 to 2014.

Mr. Koerner is a member of a number of civic boards including The Nature Conservancy of Louisiana, of which he is Chairman of the Board of Trustees, and the World War II Museum. He served as Chairman of the New Orleans Regional Chamber of Commerce for 1995, was a Past Co-Chairman of Metrovision, and was the 2002-2003 Chairman of the New Orleans Business Council.

Mr. Koerner has extensive experience in corporate finance, the management of capital intensive organizations, and capital markets. Through his service on other boards, Mr. Koerner also has experience with a broad range of corporate governance matters.

Mr. Koerner’s professional background and civic board service are among his qualifications to serve on and add significant value to the Board.

Elaine D. Abell

• Resides in Lafayette, LA

• Director Since 1993

• 76 Years of Age

• Independent

• Committees: Board Risk, Investment, and Nominating and Corporate Governance

Elaine D. Abell is an attorney and the President of the Board of Directors for Fountain Memorial Funeral Home and Cemetery.

Ms. Abell is very engaged in the community, where she currently serves on the Board of Directors for the Women’s Foundation of Acadiana (Past Chairman), the Lafayette Metropolitan Expressway Commission (Chairman), the University Medical Center Management Corporation (New Orleans) (Secretary/Treasurer), the Louisiana State University (“LSU”) Research and Technology Foundation, LSU Honors College Advisory Council, the LSU Press and Southern Review Advisory Board, and the Board of Directors of the Lafayette Central Park.

She is Past Chairman and former member of the LSU Board of Supervisors, Louisiana State Mineral Board, the Community Foundation of Acadiana, and the Citizens Advisory Committee of the Metropolitan Planning Commission. Ms. Abell served on the Executive Committee of the Commission on Colleges (Southern Association of Colleges and Schools). She also served on the Council for a Better Louisiana Board, the Academy of the Sacred Heart Board of Trustees, a founding Board Member of Women’s and Children’s Hospital of Acadiana, and is a Leadership Louisiana Member. She has been on the Junior League of Lafayette Board, and was Past President of Southwest Louisiana Educational and Referral Center.

Ms. Abell has worked extensively with the Greater Lafayette Chamber of Commerce Board where she served on the Executive Committee. Her honors include induction into the LSU Alumni Association’s Hall of Distinction in 1997, designation in Women Who Mean Business (Times of Acadiana) in 2006, recipient of the Leah Hipple McKay Memorial Award for Outstanding Volunteerism presented by the Louisiana State Bar Association in 2007, recognition as a Louisiana Pathfinder in 2011 by the Women’s Summit, and recipient of the League of Women Voters of Lafayette “Making a Lifetime of Difference Award” 2015.

Ms. Abell’s legal experience, her community service and her contacts in markets served by IBERIABANK are

among her qualifications to serve on the Board of Directors and provide significant value to the Board.

Angus R. Cooper, II

• Resides in Point Clear, AL

• Director Since 2012

• 76 Years of Age

• Independent

• Committee: Compensation, Investment and Nominating and Corporate Governance

Angus R. Cooper II is the Chairman and Chief Executive Officer of Cooper/T. Smith Corporation, which is headquartered in Mobile, Alabama. Cooper/T. Smith Corporation is one of America’s oldest and largest stevedoring and maritime-related firms with operations on all three U.S. coasts, including the ports of New Orleans, Louisiana, Mobile, Alabama, and Houston, Texas, as well as foreign operations in Central and South America. The company has also diversified its business interests, including warehousing, terminal operations, tugboats, push boats and barging, and timber business.

Mr. Cooper is a native of Mobile, Alabama. Mr. Cooper earned his Bachelor of Science degree from the University of Alabama in 1964. In 1995, he received the Transportation Award from the College of Commerce and Business Administration at the University of Alabama.

Mr. Cooper currently serves on the Board of Directors of the Coast Guard Foundation and Crescent Towing and Salvage Co., Inc. He formerly served on the Board of Trustees of The University of Alabama System. He is Vice President of the Crimson Tide Foundation and is a member of the Chief Executives Organization, Inc. He is Chairman of the Senior Bowl, and of the Mobile Arts and Sports Association, and a member of the Mobile Area Chamber of Commerce, Mobile Carnival Association, Mobile Touchdown Club, Eastern Shore Art Association, and the World Trade Center. Mr. Cooper is Honorary Chair for the Alabama Kidney Foundation. He was a former Co-Chairman of the Mobile Area United States Olympic Committee. In 2014, he was appointed to the Audubon Commission board. In 1998, he received the World Trade Club Award. In 2004, he received the Bank One Junior Achievement Award, and in 2005, he was chosen as a Role Model for the Young Leadership Council. He was named “Maritime Person of the Year 2005” by the Propeller Club of New Orleans. He also received the 14th International Maritime Hall of Fame Award in 2007. In 2009, Mr. Cooper was inducted into the Alabama Academy of Honor, and in 2013, he was

inducted into the Alabama Business Hall of Fame. He also formerly served as Chairman of the Board of Commissioners of the Port of New Orleans, and a Director of the Federal Reserve Bank, Alabama Dry Dock and Shipbuilding, Inc., Boy Scouts of America, Children’s Hospital, and Mississippi Valley Bulk Exporters Council. Mr. Cooper is a regional director for Who’s Who in U.S. Companies, World Presidents’ Organization, World Business Council and the Executive Hall of Fame.

Mr. Cooper previously served on the Board of Directors of Whitney Holding Corporation from 1994 until its merger in 2011 with Hancock Holding Company.

Mr. Cooper’s experience as the chief executive officer of a large and diversified international company, his insight into markets served by IBERIABANK, business background and relationships, and his knowledge of the banking industry are among his qualifications to serve on the Board of Directors and provide significant value to the Board.

William H. Fenstermaker

• Resides in Lafayette, LA

• Director Since 1990

• 69 Years of Age

• Independent

• Committees: Compensation, Executive (Chairman) and Nominating and Corporate Governance

William H. Fenstermaker is Chairman of the Board of IBERIABANK Corporation and IBERIABANK.

Mr. Fenstermaker is Chairman and Chief Executive Officer of C.H. Fenstermaker and Associates, LLC., a surveying, mapping, engineering and environmental consulting company that has been serving the oil and gas industry for over 65 years. He has been employed in this capacity since 1971, is responsible for the financial and operational stability of the company and also serves as Chief Risk Officer. The company is headquartered in Lafayette, Louisiana, with offices in Houston, Texas, New Orleans, Louisiana, Shreveport, Louisiana, Baton Rouge, Louisiana, San Antonio, Texas, Lake Charles, Louisiana, and Midland, Texas. The geographical coverage of his company gives him additional insight and connectivity into communities IBERIABANK also serves. Mr. Fenstermaker’s experience in the energy industry provides IBERIABANK additional depth in a segment that we have targeted as a growth opportunity.

Mr. Fenstermaker is not only recognized as a leader in his field, but a leader in the state of Louisiana. Mr. Fenstermaker is a member of the World Presidents’

Organization, Chief Executives Organization, and the Phi Kappa Phi Honor Society. He serves on the Board of Trustees of Lafayette General Medical Center (as its Immediate Past Chairman), the largest full-service medical facility serving the Acadiana region, the Community Foundation of Acadiana and the Louisiana Tennis Foundation. Mr. Fenstermaker also sits on the Board and is Past Chairman of the Louisiana Association of Business and Industry, Chairman of the University of Louisiana-Lafayette Foundation, Board of Directors and Past Chairman of the University of Louisiana Executive Advisory Council, Advisory Board of the Louisiana Geographical Survey, and the Board of Directors and Past Chairman of the Louisiana Oil and Gas Association, and is a founder, Past Chairman, and Trustee of Blueprint Louisiana. The list of the key roles he has played with local non-profit, civic and business organizations is indicative of his commitment to the Lafayette community. His honors include Business Person of the Year (Times of Acadiana) in 1998, the Lafayette Civic Cup in 1999, the Boy Scouts of America Distinguished Citizen Award in 2001, and the Executive of the Year (Acadiana Business Magazine) in 2009. He also received an Honorary Doctorate of Science Degree from the University of Louisiana-Lafayette in 2003.

Mr. Fenstermaker’s business experience and relationships, his contacts in communities served by IBERIABANK and in the State of Louisiana, and his long-term relationship with and service to IBERIABANK are among his qualifications to serve on the Board of Directors and provide significant value to the Board.

Rick E. Maples

• Resides in Longboat Key, FL

• Director Since 2016

• 59 Years of Age

• Independent

• Committees: Audit, Compensation (Chairman), Executive and Nominating and Corporate Governance

Rick E. Maples retired after 31 years at Stifel, Nicolaus and Company Incorporated (“Stifel Nicolaus”) in December 2015 and served as a Senior Advisor to Stifel Financial Corp. (“Stifel Financial”) from January 2016 until the end of March 2018. Headquartered in St. Louis, Missouri, Stifel Financial is a diversified financial services holding company which conducts business through several subsidiaries. Its primary broker dealer subsidiary is Stifel Nicolaus, which is a full service brokerage and investment banking firm. Mr. Maples joined Stifel Nicolaus in 1984 as part of its investment banking team, focusing initially on the real estate industry, and, in 1989, banking and

financial services. In 1991, he became Stifel Nicolaus’ Head of Investment Banking. In 2005, with Stifel Financial’s acquisition of Legg Mason Capital Markets, Mr. Maples became Co-Head of Investment Banking for the combined investment bank and maintained his role as Senior Managing Director, heading the Financial Institutions Group. He continued in that role until the end of 2015. In February 2013, Stifel acquired Keefe, Bruyette & Woods, Inc. (“KBW”), an investment banking firm specializing in investment banking services to the financial services industry, and merged its financial institutions group into KBW. At that time, Mr. Maples was named Executive Vice President and Co-Head of Global Investment Banking of KBW.

Mr. Maples’ investment banking experience includes involvement in a large number of capital raising and merger and acquisition transactions for bank holding

companies as well as other types of financial institutions. Those transactions have ranged in value up to $2.5 billion. Mr. Maples is frequently quoted in the American Banker and other financial services publications with respect to the market for raising capital and mergers and acquisitions.

Mr. Maples received a Bachelor’s of Science in Business Administration with a concentration in Accounting from the University of Alabama. Mr. Maples is a Certified Public Accountant and a Chartered Financial Analyst.

Mr. Maples’ investment banking experience and relationships, as well as his extensive insight into market conditions, mergers and acquisitions, and other topics impacting the financial services industry, are among his qualifications to serve on the Board of Directors and provide significant value to the Board.

Harry V. Barton, Jr.

• Resides in Lafayette, LA

• Director Since 1993

• 63 Years of Age

• Independent

• Committees: Audit (Chairman), and Nominating and Corporate Governance

Harry V. Barton, Jr. is the owner of Barton Advisory Services, LLC and Harry V. Barton CPA, LLC where he is a Registered Investment Advisor and Certified Public Accountant. In 2009, he earned the AICPA designation of Personal Financial Specialist. Mr. Barton has over 30 years of experience in the accounting industry. His expertise in the industry includes audit, review and compilation of financial statements, as well as the preparation of individual and corporate tax returns and tax planning for business and high net worth clients. He is also experienced in consulting and advising on business mergers and acquisitions.

A native of Baton Rouge, Louisiana, Mr. Barton is a graduate of the University of Louisiana at Lafayette where he earned his Bachelor of Science in Business Administration. He is a Member of the American Institute of Certified Public Accountants, Personal Financial Planning Section, Tax Section, State Society of Louisiana CPAs and the Greater Lafayette Chamber of Commerce. He has been a member of the State Society of Louisiana CPAs Business Consulting and Personal Financial

Planning Committees and served on the Board of the Lafayette General Hospital Membership Corporation. He has also served as Past Chairman of the Community Foundation of Acadiana-Professional Advisors Sub-Committee.

Mr. Barton’s accounting, tax, and investment advisory experience, as well as his contacts in the local community, are among his qualifications to serve on the Board of Directors and as Chairman of the Audit Committee and provide significant value to the Board.

E. Stewart Shea, III

• Resides in New Iberia, LA

• Director Since 1990

• 66 Years of Age

• Independent

• Committees: Board Risk, Compensation, Executive and Nominating and Corporate Governance (Chairman)

E. Stewart Shea, III is Vice Chairman of the Board of IBERIABANK Corporation and IBERIABANK. Mr. Shea has served on the IBERIABANK Board of Directors since 1990 and currently serves as Co-Chairman of IBERIABANK’s New Iberia Advisory Board.

Mr. Shea earned a Bachelor of Science degree in Construction Technology and a Masters degree in Business Administration from Louisiana State University. He began his career working for Houston-based M.W.

Kellogg, a company specializing in heavy industrial construction. In 1975, he joined The Bayou Companies, LLC, a 65-year-old fourth generation family owned and operated business, which provided various services to the domestic offshore and onshore gas pipeline industry, as well as to international markets, and which was headquartered at the Port of Iberia in New Iberia, Louisiana. In 1991, the company formed Bayou Coating, LLC, through a joint venture. This entity, headquartered in Baker, Louisiana, specialized in the application of external corrosion and internal flow assurance coatings to the domestic and international oil and gas pipeline markets. In 2005, Bayou acquired Commercial Coating Services International, based in Conroe, Texas; this company offered custom coating, field applied girth weld services and lubricity coatings for the expanded tubular market. During his last 15 years with the company, Mr. Shea served in the capacity of Managing Partner for all of the Bayou affiliated entities and also sat on the Board of Directors. The company was sold to a publicly traded company in February 2009 in an asset based transaction. Mr. Shea continues to manage the remaining stock company now known as Bayou Holdings Company, LLC, serving in the capacity of Managing Partner/President, and he sits on the Board. He is also actively involved in other investments.

Mr. Shea has been civically involved in the New Iberia and Acadiana communities and has served as Past Chairman of The Iberia Industrial Development Foundation and the Port of Iberia Business Association; he has served on the Boards of Epiphany Day School, Catholic High School and the Community Foundation of Acadiana. Mr. Shea was on the Board of, and served as Chairman of, INGAA (Interstate Natural Gas Association of America), an organization comprised of pipeline companies that are in the business of transporting natural gas. Having 35 years of experience in owning and managing an oil and gas service company has given Mr. Shea additional insight and connectivity into the communities and markets that IBERIABANK serves.

Mr. Shea’s business experience and contacts, both in the oil and gas pipeline industries and in the communities and markets served by IBERIABANK, as well as his long-term relationship with and service to IBERIABANK, are among his qualifications to serve on the Board of Directors and provide significant value to the Board.

David H. Welch

• Resides in Lafayette, LA

• Director Since 2005

• 69 Years of Age

• Independent

• Committees: Audit, Board Risk, Investment, Executive, and Nominating and Corporate Governance

David H. Welch currently serves as a Non-Executive Chairman with Amicus Oil and Gas, an energy exploration and production company active in the US and Canada, and is an Executive Chairman of several companies including Regenerative Medical Services, a medical products distribution company active in Louisiana, Georgia, and South Carolina, Welch Energy, an oil and gas exploration and production company active in Louisiana and Texas, and Welch Capital, a real estate development company active in Florida, Belize and the Bahamas.

Dr. Welch recently retired from Stone Energy Corporation after serving as Chairman of the Board from 2012—2017, and as President and Chief Executive Officer from 2004—2017. Stone Energy is an independent oil and natural gas company engaged in the acquisition, exploration, exploitation, development and operation of oil and gas properties. See “Certain Transactions.” Prior to joining Stone Energy, he worked for BP Amoco or its predecessors for 26 years, where his final role was Senior Vice President, BP America Inc.

Dr. Welch holds a petroleum engineering degree from Louisiana State University and a doctoral degree in chemical engineering and economics from Tulane University. He has completed the Harvard Business School advanced management program and executive development programs at Stanford Business School and Cambridge University.

Dr. Welch serves as Chairman of the National Ocean Industries Association and has served as Chairman of the Offshore Energy Center, Chairman of the Greater Lafayette Chamber of Commerce and Chairman of the United Way of Acadiana. He is a director of Ready Nation, a national CEO group dedicated to early childhood education.

Dr. Welch’s experience and relationships in the energy industry, his experience as the chief executive officer and a director of another publicly traded company and his contacts in communities served by IBERIABANK are among his qualifications to serve on the Board of Directors and provide significant value to the Board.

The Board of Directors met 13 times during the fiscal year ended December 31, 2017. All directors attended at least 75% of the total of all meetings of the Board of Directors and assigned committees in 2017. We encourage directors’ attendance at our annual shareholder meetings

and request that directors make reasonable efforts to attend such meetings. All of the members of the Board of Directors attended the 2017 Annual Meeting of Shareholders.

Pursuant to our Bylaws, at the first meeting of each newly elected Board of Directors, or at such other time when there is a vacancy, the Board solicits input and nominations from its members and elects one of its members as Chairman to serve at the Board’s pleasure. The Chairman presides over each Board meeting and performs such other duties as may be incident to the office.

Although our Bylaws and Corporate Governance Guidelines would allow our Chairman to hold the position of Chief Executive Officer (“CEO”), it is the current policy of the Board to separate these offices. This separation allows our Chairman to maintain an independent role in management oversight.

Our Board of Directors recognizes that risk management is an enterprise–wide responsibility. Our Board assumes a significant role in risk management both through its actions as a whole and through its committees.

While each of these committees is responsible for evaluating certain risks and overseeing the management of these risks, the entire Board of Directors is regularly informed through committee reports about such risks.

In addition, the Board of Directors and the CEO have appointed a Chief Risk Officer, who is an executive officer of the Company, to support the risk oversight responsibilities of the Board and its committees, and to oversee the corporation’s enterprise-wide risk management program, including various management committees. The Chief Risk Officer also manages a team of senior officers who are assigned responsibility for oversight of particular risks and serves as the chairman of the Management Risk Committee.

Each year, the Board of Directors reviews the relationships that each director has with us and with other parties. Only those directors who do not have any of the categorical relationships that preclude them from being independent within the meaning of applicable NASDAQ listing standards and who the Board of Directors affirmatively determines have no relationships that would interfere with the exercise of independent judgment in carrying out the responsibilities of a director are considered to be “independent directors.” The Board of Directors has reviewed a number of factors to evaluate the independence of each of its members. These factors include its members’ relationships with us and our

competitors, suppliers and clients; their relationships with management and other directors; the relationships their current and former employers have with us; and the relationships between us and other companies of which our Board members are directors or executive officers. After evaluating these factors, the Board of Directors has determined that Ms. Abell and Messrs. Barton, Breaux, Casbon, Cooper, Fenstermaker, Koerner, Maples, Shea and Welch are independent directors of IBERIABANK Corporation within the meaning of applicable NASDAQ listing standards. Independent Board members met in executive session without management present three times during the year ended December 31, 2017.

Shareholders may communicate directly with members of the Board of Directors or the individual chairperson of a standing Board of Directors’ committee by writing directly to those individuals at the following address: 200 West Congress Street, Lafayette, Louisiana, 70501. Our

general policy is to forward, and not to intentionally screen, any mail received at our corporate office. The Board of Directors reserves the right to revise this policy in the event it is abused, becomes unworkable or otherwise does not efficiently serve the policy’s purpose.

The Board of Directors has adopted a Code of Ethics for the Chief Executive Officer and senior financial officers, including the Chief Financial Officer, the Chief Accounting Officer, and persons performing similar functions. The Board of Directors also has adopted a Code of Ethics and Conflicts of Interest Policy that applies to all officers,

other associates and directors. Links to both codes of ethics are on the “Investor Relations” portion of our website at: http://www.iberiabank.com. Any waiver or substantial amendments of the codes of ethics applicable to our directors and executive officers also will be disclosed on our website.

The Board of Directors represents that it will not, without prior shareholder approval, issue any series of preferred stock for any defensive or anti-takeover purpose, for the purpose of implementing any shareholder rights plan or with features specifically intended to make any attempted acquisition of the Company more difficult or costly. Subject to these limitations, the Board of Directors may issue preferred stock in connection with capital

raising transactions, acquisitions, and joint ventures and for other corporate purposes that may have the effect of making such an acquisition more difficult or costly, as could also be the case if the Board of Directors were to issue additional shares of common stock. This representation is part of our Corporate Governance Guidelines, a link to which is in the “Investor Relations” portion of our website at: http://www.iberiabank.com.

The Board of Directors has adopted written Corporate Governance Guidelines, which outline the Board’s responsibilities and duties to our shareholders, associates and clients, and to the communities in which we do business, to ensure that we operate with the highest professional, ethical, legal and socially responsible standards. The Guidelines address a number of matters relating to our directors, including Board composition and qualifications, functions of the Board and committees of the Board.

The Guidelines also address the following matters of corporate governance:

A link to the Corporate Governance Guidelines is on the “Investor Relations” portion of our website at: http://www.iberiabank.com.

With respect to the second element of our Mission Statement—“Great place to work”—we value the importance of employing high-performing associates in a diverse and inclusive workplace. Our foundation has been built upon the quality and well-being of our associates. Appreciating their differences, unique viewpoints, and wide range of talents have been and will continue to be

essential to our future success. Our approach is to continuously develop talent and foster diversity throughout the Company and thereby develop future opportunities.

The Company recently announced the hiring of Monica R. Sylvain as Executive Vice President and Chief Diversity Officer. Under the direction of our Chief Executive Officer, Dr. Sylvain will lead the development and implementation of proactive diversity, equity and inclusion initiatives, which will support the Company’s strategic plan. The Board is working with management and the new Chief Diversity Officer to develop and establish Board level policy and a management/Board oversight council in regards to diversity and inclusion initiatives.

In addition to the beneficial ownership of common stock, our executive officers hold restricted share units that were granted in 2016, 2017 and 2018 that are not reported in the stock ownership table but represent additional financial interests that are subject to the same market risks as common stock. The value of these units is the same as the value of the corresponding number of shares of common stock. These units are more completely described in the “Compensation Discussion and Analysis.” As of the record date, executive officers named in the stock ownership table hold the following restricted stock units: 62,973 units by Mr. Byrd; 17,184 units by Mr. Restel; 20,931 units by Mr. Brown; 11,521

units by Mr. Perez-Hickman; 10,203 units by Ms. Ardoin; and 167,620 units held by all executive officers as a group.

See “Compensation Discussion and Analysis-Stock Ownership Guidelines” regarding stock ownership guidelines for directors and Named Executive Officers. The stock ownership guidelines are part of the IBERIABANK Corporation Corporate Governance Guidelines. A link to the Corporate Governance Guidelines is on the “Investor Relations” portion of our website, at: http://www.iberiabank.com.

Section 16(a) of the Securities Exchange Act of 1934, as amended, requires each of our directors and executive officers, and each beneficial owner of more than 10% of our common stock, to file with the SEC an initial report of the person’s beneficial ownership of our equity securities and subsequent reports regarding changes in ownership. These directors, officers, and greater than 10% shareholders are required to furnish us with copies of all Section 16(a) forms and certain other forms that they file. On the basis of reports and representation of our

directors, executive officers and greater than 10% shareholders, we believe that each person subject to the filing requirements with respect to us satisfied all required filing requirements during 2017. In early 2017, H. Spurgeon Mackie, Jr., an executive officer of the Company, became aware of his failure to file a Form 4 to report one sale of common stock in 2015. Upon recognition of his inadvertent failure to report the sale of securities, in 2017 Mr. Mackie filed a Form 5 to report the late transaction.

The Board of Directors of the Company has established six committees: the Audit Committee, the Nominating and Corporate Governance Committee, the Compensation Committee, the Board Risk Committee, the Executive Committee and the Investment Committee.

A link to the charter of each of these committees, except for the Executive Committee and the Investment Committee, can be found on the “Investor Relations” portion of our website, at http://www.iberiabank.com.

The members of the Audit Committee are Mr. Barton, who serves as the chairman, and Messrs. Koerner, Maples and Welch. Each of the members of the Audit Committee is independent within the meaning of applicable NASDAQ listing standards. The Board of Directors has determined that each of the Audit Committee members has the requisite expertise generally required of an audit committee member under NASDAQ standards and that the Chairman of the Audit Committee, Mr. Barton, is an “audit committee financial expert” as defined in Item 407(d)(5) of SEC Regulation S-K.

The Audit Committee has oversight responsibility for the quality and integrity of our financial statements. The Audit Committee meets privately with the independent registered public accounting firm, has the sole authority to retain and dismiss the independent registered public accounting firm and reviews their performance and independence from management. The independent registered public accounting firm has unrestricted access and reports directly to the Audit Committee. The Audit Committee met nine times during 2017.

The primary functions of the Audit Committee are to oversee: (i) the audit of the financial statements of the Company provided to the SEC, the shareholders and the general public; (ii) the Company’s internal financial and accounting processes; and (iii) the internal audit process. Additionally, the Audit Committee has responsibilities with respect to: (i) complaints relating to accounting, internal accounting controls or auditing matters; (ii) authority to engage advisors; and (iii) funding as determined by the Audit Committee. The Audit Committee also monitors our compliance with legal and regulatory requirements.

The Audit Committee has adopted a formal policy concerning approval of audit and non-audit services to be provided to us by our independent registered public accounting firm. The policy requires that all services to be provided by the independent registered public accounting

firm, including audit services and permitted audit-related and non-audit services, must be pre-approved by the Audit Committee. The Audit Committee pre-approved all audit and non-audit services provided by Ernst & Young LLP during 2017. The Audit Committee will also pre-approve 2018 services to be provided by Ernst & Young LLP.

Pursuant to its Charter, the Audit Committee is authorized to conduct an appropriate review of all related party transactions for potential conflict of interest situations to determine that the related party transaction is consistent with the best interests of the Company and our shareholders. The term “related party transaction” generally means a transaction, arrangement or relationship (or any series of the same) in which we or our subsidiaries are or will be a participant and the amount involved exceeds $120,000, and in which the related party has or will have a direct or indirect interest. A related party generally means a director, nominee or executive officer of the Company; a person known to be the beneficial owner of more than 5% of our common stock; and any “immediate family member” of the foregoing persons (as defined by the SEC). See “—Committee Interaction” and “Certain Transactions—Review, Approval or Ratification of Transactions with Related Persons.”

While it is the responsibility of management and the Board Risk Committee to assess, manage and monitor the Company’s enterprise-wide exposure to risk, the Audit Committee will review in a general manner the guidelines and policies to govern the processes used by the Board Risk Committee and the management-level risk committee with respect to enterprise-wide risk management. See “—Committee Interaction.”

These and other aspects of the Audit Committee’s authority are more particularly described in the Audit Committee Charter. A link to the Audit Committee Charter is on the “Investor Relations” portion of our website, at: http://www.iberiabank.com.

The independent members of the Board of Directors—Ms. Abell and Messrs. Barton, Breaux, Casbon, Cooper, Fenstermaker, Koerner, Maples, Shea, who serves as Chairman, and Welch—serve as our Nominating and Corporate Governance Committee. The Nominating and Corporate Governance Committee is responsible for evaluating and recommending individuals for election or re-election to the Board of Directors, including those recommendations submitted by shareholders, the evaluation of the performance of the Board of Directors and its committees, and the evaluation and recommendation of corporate governance policies. In 2017, the Nominating and Corporate Governance Committee held seven meetings. A link to the Nominating and Corporate Governance Committee Charter is on the “Investor Relations” portion of our website, at: http://www.iberiabank.com.

It is a policy of the Nominating and Corporate Governance Committee that candidates for director possess the highest personal and professional integrity, have demonstrated exceptional ability and judgment, and have skills and expertise appropriate for us and serving the long-term interests of our shareholders. The Committee’s process for identifying and evaluating nominees is as follows:

Consistent with our Corporate Governance Guidelines, the Nominating and Corporate Governance Committee seeks to nominate candidates with diverse experiences and perspectives. In evaluating candidates, the Committee considers, among other things, diverse backgrounds, professional experience, education and community involvement, as well as racial and gender diversity. The Committee has not formalized this practice into a written policy.

The Committee meets to discuss and consider these candidates’ qualifications, including whether the nominee

is independent within the meaning of NASDAQ listing standards, and then selects a candidate by majority vote. In seeking potential nominees, the Nominating and Corporate Governance Committee uses its management’s network of contacts to compile a list of potential candidates, but may also engage, if it deems appropriate, a professional search firm. To date, the Nominating and Corporate Governance Committee has not paid a fee to any third party to assist in the process of identifying or evaluating director candidates, nor has the Committee rejected a timely director nominee from a shareholder holding more than 5% of our voting stock.

The Nominating and Corporate Governance Committee will consider director candidates recommended by shareholders, provided the shareholders follow the procedures set forth in Article 6F of our Articles of Incorporation. The Committee does not intend to alter the manner in which it evaluates candidates, including the criteria set forth above, based on whether the candidate was recommended by a shareholder or otherwise.

Article 6F of our Articles of Incorporation governs nominations of candidates for election as director at any annual meeting of shareholders and provides that such nominations, other than those made by the Board, may be made by any shareholder entitled to vote at such meeting, if the nomination is made in accordance with the procedures set forth in Article 6F, which are summarized below.

A shareholder’s notice of nomination must be delivered to, or mailed and received at, our principal executive offices not later than 60 days before the anniversary date of the immediately preceding annual meeting of shareholders and must set forth as to each person who the shareholder proposes to nominate for election as a director and as to the shareholder giving the notice:

To be timely under the Articles of Incorporation, nominations by any shareholder eligible to vote at the 2018 Annual Meeting of Shareholders must have been received by us on or before March 10, 2018.

The Nominating and Corporate Governance Committee may reject any nomination by a shareholder not made in accordance with the requirements of Article 6F. Notwithstanding the foregoing procedures, if neither the Board of Directors nor the Committee makes a determination as to the validity of any nominations by a shareholder, the presiding officer of the annual meeting shall determine and declare at the annual meeting whether the nomination was made in accordance with the terms of Article 6F.

Our Compensation Committee has five members and is chaired by Mr. Maples; the other members of the Committee are Messrs. Shea, Fenstermaker, Cooper and Casbon. Each member of the Compensation Committee has been determined by our Board of Directors to meet NASDAQ, SEC and Internal Revenue Code independence criteria. The Compensation Committee met eight times during 2017.

Compensation Committee Responsibilities and Authority. Our Compensation Committee, in consultation with our President and Chief Executive Officer, is responsible for establishing and monitoring the overall compensation and benefits philosophy and strategy of IBERIABANK Corporation and its subsidiaries. As set forth in its Charter, the responsibilities of the Compensation Committee include:

The Compensation Committee determines the compensation for the CEO. With respect to our other senior executive officers, the CEO annually reviews performance and presents his conclusions and compensation recommendations to the Compensation Committee. The Committee reviews and considers the CEO’s recommendations when making its final

compensation decisions for all executives other than the CEO. The Compensation Committee also administers our equity incentive programs and oversees risk management with respect to our material incentive compensation arrangements. In addition, the Compensation Committee recommends to the full Board compensation for directors.

The Chair of the Compensation Committee works with the Chief Human Resources Officer to set the meeting agenda for the Compensation Committee.

Compensation Committee Charter. The Charter of the Compensation Committee describes the principles upon which the Committee was founded and operates. The Charter is reviewed and reassessed annually, and any proposed changes are recommended to the Board, to ensure that the Compensation Committee is fulfilling its duties in aligning our executive compensation programs with shareholder value creation, helping us attract and retain talented executives and managers, and being responsive to the legitimate needs of our shareholders. A current copy of the Charter of the Compensation Committee can be found on the “Investor Relations” portion of our website, at http://www.iberiabank.com.

Involvement of Compensation Consultants and Executive Management in Compensation Decisions. Among other matters, the Compensation Committee is authorized to engage outside advisors (including compensation consultants and legal counsel) to assist the Committee in achieving its mission and responsibilities. In 2017, the Committee retained FW Cook to serve as the Committee’s independent advisor. The decision to retain independent advisors is at the sole discretion of the Compensation Committee, and these consultants work at the direction of the Committee. The Committee assessed

the independence of FW Cook, taking into account related factors in accordance with SEC and NASDAQ rules and concluded that the work of FW Cook did not raise any conflict of interest that would prevent them from independently advising the Committee. The Committee has also retained FW Cook to serve as the Committee’s independent advisor for 2018.

The Compensation Committee believes that it is important for members of management to provide input on the overall effectiveness of our executive compensation programs. The Committee believes that the advice of outside advisors must be combined with the input of senior management and the Compensation Committee’s own individual experiences and best judgment to seek to achieve a proper alignment of compensation philosophies, programs and practices. The CEO, the Director of Communication, Corporate Real Estate and Human Resources and the Chief Human Resources Officer are the members of management who interact most closely with the Compensation Committee. These individuals work with the Compensation Committee to provide their perspectives on reward strategies and how to align them with our business and retention goals. They provide feedback and insights into how well our compensation programs and practices appear to be working. In addition, the CEO, the Director of Communication, Corporate Real Estate and Human Resources, the Chief Human Resources Officer, and the Chief Financial Officer attend all or portions of certain Compensation Committee meetings to participate in the presentation of materials and discussion of management’s point of view regarding compensation issues.

Executive Session. At certain meetings, the Compensation Committee meets in executive session without members of management present for the purpose of discussing matters independently from management.

Compensation Risk. The Compensation Committee reviewed the relationship between our risk management and the incentive compensation provided to associates, including our Named Executive Officers and other executive and non-executive officers, and determined that our incentive compensation programs do not encourage unnecessary and excessive risk taking. These conclusions were made after consultations with senior executive officers, the Chief Human Resources Officer, the chairman of the Board Risk Committee (who is also a member of the Compensation Committee), and representatives of the Compensation Committee’s independent executive compensation advisor. See “Committee Interaction.”

Compensation Committee Interlocks and Insider Participation. The Compensation Committee is composed entirely of independent directors. None of the members of the Compensation Committee was an officer or other associate of our Company or any of our subsidiaries during 2017, or is a former officer or other associate of our Company or any of our subsidiaries. Members of the Compensation Committee may, from time to time, have banking relationships in the ordinary course of business with IBERIABANK, as described under “Certain Transactions.”

The Board Risk Committee is a standing committee of the Board of Directors of the Company. The purpose of the Board Risk Committee is to assist the Board in fulfilling its oversight responsibilities with respect to the Company’s enterprise risk management framework, risk appetite, risk exposure, risk governance, and significant policies. The members of the Board Risk Committee are Mr. Casbon, who serves as Chairman, Ms. Abell, and Messrs. Breaux, Koerner, Shea and Welch. The Board Risk Committee met seven times in 2017.

The primary purpose of the Board Risk Committee is to:

The Board Risk Committee’s primary duties and responsibilities include:

The Board Risk Committee has authority to conduct any investigation appropriate to fulfilling its responsibilities, and it has direct access to all persons in the organization. The Board Risk Committee may retain, at the Company’s expense, such special consultants and experts as it deems necessary or appropriate to execute its duties.

At certain meetings, the Board Risk Committee meets without members of management present for the purpose of discussing matters independently from management. The Board Risk Committee meets privately at various times through the year with the Chief Risk Officer and such other officers as the Board Risk Committee deems appropriate to discuss any matters that the Board Risk Committee believes should be discussed.

The function of the Board Risk Committee is solely oversight; management is responsible for executing the Company’s risk management and credit origination processes. Each Board Risk Committee member is entitled to rely on persons and organizations within and outside the Company that provide information and advice to management and the Board Risk Committee and on the accuracy and completeness of this information and advice absent actual knowledge to the contrary.

The Board Risk Committee conducts its business pursuant to a written Board Risk Committee Charter adopted and reviewed at least annually by the Board of Directors. A link to the Board Risk Committee Charter can be found on the “Investor Relations” portion of our website, at http://www.iberiabank.com.

In connection with the responsibilities of the Board Risk Committee, with respect to the relationship between the Company’s risk management and the incentive compensation provided to associates, including Named Executive Officers identified in this Proxy Statement and other executive and non-executive officers, the Compensation Committee determines whether incentive compensation programs encourage unnecessary and excessive risk taking. The Compensation Committee will seek to limit any unnecessary or excessive risks that these programs may pose to the Company in order to avoid programs that might encourage such risks. The Board of Directors recognizes that information and reports prepared for and reviewed by the Compensation

Committee and the Board Risk Committee may each be relevant to the oversight and responsibilities of the other and should be provided to the other, as appropriate.

In connection with the responsibilities of the Audit Committee with respect to compensation risk assessment, the Board of Directors recognizes that information and reports prepared for and reviewed by each of the Compensation Committee, the Audit Committee and the Board Risk Committee may be relevant to the oversight and responsibilities of the other committees and should be provided to the other committees, as appropriate.

The Audit Committee of the Board of Directors, subject to shareholder ratification, currently intends to appoint the firm of Ernst & Young LLP, independent certified public accountants, to serve as our independent registered public accounting firm and to perform the audit of the financial statements for the fiscal year ending December 31, 2018, and further directed that the selection of auditors be submitted for ratification by the shareholders at the Annual Meeting.

Representatives of Ernst & Young LLP will be present at the Annual Meeting, will have an opportunity to make a statement if they so desire, and will be available to respond to appropriate shareholder questions.

Shareholder ratification of the selection of Ernst & Young LLP as our independent registered public accounting firm is not required by our Bylaws or other applicable legal requirements. However, the Audit Committee is submitting the selection of Ernst & Young LLP to the shareholders for ratification as a matter of good corporate practice. In the event shareholders fail to ratify the appointment, the Audit Committee may reconsider this appointment. Even if the appointment is ratified, the Audit Committee, in its discretion, may direct the appointment of a different independent accounting firm at any time during the year if the Audit Committee determines that such a change would be in our and our shareholders’ best interests.

Ernst & Young LLP provided audit services to us consisting of the annual audit of our 2017 and 2016 consolidated financial statements contained in our

Annual Reports on Form 10-K and reviewed the financial statements contained in our Quarterly Reports on Form 10-Q for 2017 and 2016.

Audit Fees—These are fees related to professional services rendered in connection with the audit of our annual financial statements, reviews of the financial statements included in each of our Quarterly Reports on Form 10-Q, comfort letters and consents, and accounting consultations that related to the audited financial statements and were necessary to comply with generally accepted auditing standards.

Audit-related Fees—These fees consist primarily of other audits and attest services, financial accounting, reporting and compliance matters.

Tax Fees—These are fees billed for professional services related to tax compliance, tax advice and tax planning, including services provided in connection with assistance in the preparation and filing of tax returns.

All Other Fees—These are fees for all other permissible services that do not meet the above category descriptions.

The Audit Committee has considered whether the provision of non-audit services is compatible with maintaining the independence of Ernst & Young LLP. The Audit Committee’s policy is to pre-approve all audit and permissible non-audit services provided by the independent registered public accounting firm. These services may include audit services, audit-related services, tax services and other services. Pre-approval is generally provided for up to one year, and any pre-approval is detailed as to the particular service or

category of services and is generally subject to a specific budget. The independent registered public accounting firm and management are required to periodically report to the Audit Committee regarding the extent of services provided by the independent registered public accounting firm in accordance with this pre-approval and the fees for the services performed to date. The Audit Committee or the Chairman of the Audit Committee may also pre-approve particular services on a case-by-case basis.

The Dodd-Frank Wall Street Reform and Consumer Protection Act, enacted in July 2010, requires that we provide you the opportunity to vote to approve, on a non-binding advisory basis, the compensation of our Named Executive Officers, as disclosed in this Proxy Statement in accordance with the compensation disclosure rules of the SEC.

At the 2017 annual meeting, our shareholders were provided the opportunity to cast an advisory vote to approve the compensation of our Named Executive Officers, also commonly known as a “say on pay” proposal. The Company’s shareholders overwhelmingly approved the Company’s executive compensation program, with 98% of the votes cast in favor of the proposal. At the 2017 Annual Meeting, shareholders were also asked to recommend how often shareholders should be given the opportunity to cast a “say on pay” vote. Over 83% of the votes were for the “One Year” option, and this option was later approved by the Board. As a result and as required pursuant to Section 14A of the Securities Exchange Act of 1934, as amended, we are again providing shareholders the opportunity to cast an advisory vote to approve Named Executive Officer compensation.

As described in detail in the “Compensation Discussion and Analysis” section, we seek to closely align our compensation programs with short-term and long-term goals, while avoiding unnecessary or excessive risk-taking. We believe the program changes in 2016 that carried forward throughout 2017 demonstrate the Committee’s continuing commitment to strengthen the alignment between compensation outcomes and shareholder returns.

We urge you to read the “Compensation Discussion and Analysis” section and other related executive compensation disclosures so that you have an understanding of our executive compensation philosophy, policies, and practices.

The vote on this resolution is not intended to address any specific element of compensation, rather the vote relates to the compensation of our Named Executive Officers, as described in this Proxy Statement. The vote is advisory, which means that the vote is non-binding on the Company, our Board of Directors, or the Compensation Committee.

The Company’s management will present the following resolution to the meeting:

“RESOLVED, That the Company’s shareholders approve, on an advisory basis, the compensation paid to the Named Executive Officers as disclosed in the Company’s Proxy Statement for the 2018 Annual Meeting of Shareholders pursuant to the compensation disclosure rules of the SEC, including the Compensation Discussion and Analysis, the Summary Compensation Table and the other related tables and narrative disclosures.”

Although this advisory vote will be non-binding, it will serve as a recommendation to the Compensation Committee and the Board of Directors. The Compensation Committee and the Board will seriously consider the voting results in connection with their ongoing evaluation of the Company’s executive compensation arrangements. The next such shareholder advisory vote will occur at the 2019 annual meeting of shareholders.