NOTICE OF ANNUAL MEETING OF SHAREHOLDERS

Notice of Annual Meeting of Shareholders

The 2023 Annual Meeting of Shareholders of Trustmark Corporation (Trustmark) will be held as follows:

DATE AND TIME Tuesday, April 26, 2016,25, 2023, at 2:1:00 p.m. CT   LOCATION Trustmark Conference CenterCorporate Office Mississippi Sports Hall of Fame 1152 Lakeland Drive248 East Capitol Street Jackson, Mississippi 3921639201

ITEMS OF BUSINESS
1)		To elect a board of eleven11 directors to hold office for the ensuing year or until their successors are elected and qualified.
2)		To provide advisory approval of Trustmark’s executive compensation.
3)		To provide an advisory vote on the frequency of advisory votes on Trustmark’s executive compensation. 4)  To approve an amendment and restatement of Trustmark’s articles of incorporation to provide for exculpation of directors in accordance with Mississippi law. 5)  To ratify the selection of Crowe Horwath LLP as Trustmark’s independent auditor for the fiscal year ending December 31, 2016.
4)		To approve an amendment to Trustmark’s articles of incorporation to require majority voting in uncontested director elections.
5)		To approve an amendment to Trustmark’s articles of incorporation to eliminate cumulative voting in director elections.
2023. 6)		To transact such other business as may properly come before the meeting.

RECORD DATE

Shareholders of record on March 1, 2023, are entitled to notice of and to vote at the Annual Meeting.

PROXY VOTING/REVOCATION

Your vote is important. You are urged to vote your shares as soon as possible, whether or not you plan to attend the meeting. Please vote your shares in one of the following ways:

If you attend the meeting, you may revoke your proxy prior to the voting thereof. You may also revoke your proxy by following the instructions on page 4 of the proxy statement.

Granville Tate, Jr.

Secretary

March 15, 2023

March 15, 2023

Dear Shareholder:

On behalf of your Board of Directors, we cordially invite you to attend Trustmark’s Annual Shareholders’ Meeting at Trustmark’s Corporate Office, 248 East Capitol Street, Jackson, Mississippi 39201, on April 25, 2023, at 1:00 p.m. CT. At the meeting, you will have the opportunity to elect 11 directors who bring diverse perspectives and valuable leadership skills to Trustmark. Their guidance will enable us to successfully compete in an evolving industry and continue our steadfast commitment to the customers, associates, shareholders and communities we have the privilege of serving. Your vote is important to us. The proposals to be considered are described in this proxy statement, and instructions on how to vote your shares may be found on page 4. We encourage you to vote your shares in advance of the meeting to ensure the presence of a quorum.

We made significant progress across the organization during the year. Loan growth in 2022 was the highest in Trustmark’s history. Credit quality remained strong. Net interest income and the net interest margin were up significantly. Our insurance business posted another record year. We made significant investments in technology, including conversion to a state-of-the-art loan system designed to enhance efficiency and productivity. With all of these positive advancements, our financial results were overshadowed by a settlement that, pending court approval, will resolve all current and potential future claims relating to litigation involving the Stanford Financial Group that began in 2009. While we expressly deny any liability or wrongdoing with respect to this matter, we believe the settlement is in the best interest of Trustmark and our shareholders as it eliminates risk, ongoing expense and uncertainty. With this matter now behind us, we will focus more intently on the future and the opportunities that are ahead. Trustmark is very well-positioned to serve and expand its customer base and create long-term value for shareholders.

We invite you to review our Form 10-K and our 2022 Year in Review, both of which are available at investorrelations.trustmark.com or in hard copy upon request. These documents will provide more detailed information about your company.

Thank you for your continued support of Trustmark and your participation in this important process.

Sincerely,

PROXY VOTING/REVOCATION
•		You are urged to vote your shares as soon as possible, whether or not you plan to attend the meeting. You may vote your shares by Internet by following the instructions on the Notice of Internet Availability or proxy card.
•		If you received a printed copy of the proxy statement, you may also vote your shares by signing and returning the enclosed proxy card in the enclosed reply envelope.
•		If you do attend the meeting, you may revoke your proxy prior to the voting thereof. You may revoke your proxy by following the instructions on page 2 of the proxy statement.

Gerard R. Host

TABLE OF CONTENTS

PROXY SUMMARY

This summary highlights information contained elsewhere in this proxy statement. Please read the entire proxy statement carefully before voting as this is only a summary.

Information About the 2023 Annual Meeting

Proposals

Financial Highlights – 2022

Corporate Governance Highlights

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Environmental, Social and Governance/Corporate Social Responsibility (ESG/CSR)

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GENERAL INFORMATION

Solicitation by the BoardIntroduction

Trustmark Corporation (Trustmark) is holding its 2023 Annual Meeting of Directors

Shareholders (the Annual Meeting) on Tuesday, April 25, 2023. This proxy statement is being sent on or about March [14], 2016,15, 2023, in connection with the solicitation by the Board of Directors of Trustmark Corporation (Trustmark) of proxies to be voted at the 2016 Annual Meeting of Shareholders (the Annual Meeting) and at any adjournment or postponement thereof for the purposes set forth in the foregoing Notice of Annual Meeting of Shareholders.thereof.

Trustmark is furnishing this proxy statement over the Internet to most shareholders to lower the cost of this solicitation, expedite receipt of this proxy statement by shareholders and help conserve natural resources.

shareholders. These shareholders will not receive printed copies of the proxy statement and proxy card, and instead will receive a Notice of Internet Availability of Proxy Materials containing instructions on how to access the proxy materials over the Internet. If you received a Notice of Internet Availability for additional informationof Proxy Materials, please see “Availability of Proxy Materials” on page 46.48 for additional information.

Meeting Location, Date and Time

The Annual Meeting will be held in the Trustmark Conference Center at the Mississippi Sports Hall of FameTrustmark’s Corporate Office located at 1152 Lakeland Drive,248 East Capitol Street, Jackson, Mississippi 39216,39201 on Tuesday, April 26, 2016,25, 2023, at 2:1:00 p.m. CT. To obtain directions to attend the meeting, contact the Secretary at 1-601-208-5088 or toll-free at 1-800-844-2000 (extension 5088).

Shareholders Entitled to Vote

Shareholders of record at the close of business on February 16, 2016,March 1, 2023, are entitled to notice of and to vote at the meeting in person or by proxy.Annual Meeting. On the record date, Trustmark had outstanding [ • ][XX,XXX,XXX] shares of common stock.

Required Vote

A majority of the shares outstanding and entitled to vote constitutes a quorum. The eleven candidates who receivequorum to transact business at the highest number of affirmative votes will be elected as directors. In the election of directors, each shareholder may vote his shares cumulatively by multiplying the number of shares he is entitled to vote by the number of directors to be elected. This product constitutes the number of votes the shareholder may cast for one nominee or distribute among any number of nominees. For all other proposals, eachAnnual Meeting. Each share is entitled to one vote on each proposal. Any such

The required vote for each proposal including the advisory vote to approve Trustmark’s executive compensation, ratification of the selection of Crowe Horwath LLP (Crowe Horwath)is as independent auditor and approval of each of the amendments to Trustmark’s articles of incorporation to require majority voting in uncontested director elections and eliminatefollows:

How to Vote

Shareholders of record can vote in person at the Annual Meeting or by proxy without attending the Annual Meeting.

To vote by proxy:

Key Features of Trustmark’s Corporate Governance

Trustmark’s governance structure has a number of key features that are designed to ensure effective and efficient oversight of the company, including the following:

The Board has adopted,Code of Conduct for Trustmark Directors, Code of Ethics for Senior Financial Officers of Trustmark, Code of Ethics and annually reviews, formal charters for the Board and its committeesProcedure to address the governance guidelines and responsibilitiesReport Violations of each. Likewise, the Board has adopted codes of conduct/ ethics for directors, senior financial officers (including the CEO) and associates. These materialsLaw or Accounting or Audit Irregularities (Whistleblower Procedures) are available on Trustmark’s website at www.trustmark.cominvestorrelations.trustmark.com or may be obtained, without charge, by written request addressed to the Secretary, of the Board, Trustmark Corporation, Post Office Box 291, Jackson, MS 39205.

Trustmark intends to provide required disclosure of any amendment to or waiver of its codes of conduct/ethics that applies to the principalchief executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, on www.trustmark.com underInvestor Relations/Corporate Governanceat investorrelations.trustmark.com promptly following any such amendment or waiver. Trustmark may also elect to disclose any such amendment or waiver in a report onForm 8-K filed with

Director Attendance at the Annual Meeting

Directors are expected to attend the Annual Meeting, and in 2022, all Directors were present at the annual meeting of shareholders, and in 2015, all of the directors and nominees were present.shareholders.

Director Independence

The Board has affirmatively determined that the following current directors and director nominees are “independent directors” (within the meaning of Rule 5605(a)(2) of the NASDAQNasdaq Listing Rules):

David H. Hoster II has reachedThe Board also determined in 2022 that former Director Toni D. Cooley, who retired from the mandatory retirement age and will, therefore, not stand for re-election at the Annual Meeting.Board in April 2022, was an “independent director.”

In conjunction with these independence determinations, the Board considered certain relationships, including through family members and business affiliates, that (i) Messrs. Brown and Puckett, General Collins, Dr. Hays, and Mrs. Conerly have, and Ms. Cooley had, as customers of Fisher Brown Bottrell Insurance, Inc. (Fisher Brown Bottrell), a subsidiary of Trustmark National Bank (the Bank), and (ii) Messrs. Baker, Brown, Eduardo and Puckett, General Collins and Dr. Hays have as customers of the relationships,wealth management and trust services division of the Bank. The Board also noted that a number of directors, including through business affiliates, that Messrs. Grafton, Hoster and Puckett, Mrs. Conerly and Ms. Cooley have as customers of Trustmark National Bank’s (the Bank) subsidiary, Fisher Brown Bottrell Insurance, Inc., and that Mrs. Conerly’s employer has as a service-provider tocustomer relationships with the Bank and in the form of routine deposit, credit card and/or loan products in the ordinary course. In each case, the Board concluded that the business relationship did not interfere with the individual’s ability to exercise independent judgment as a director of Trustmark.

Board Leadership

Under Trustmark’s governance guidelines, which are contained in the Board Charter, the Board has the responsibility to determine the most appropriate leadership structure for the company, including whether it is best for the company at a given point in time for the roles of Board ChairmanChair and CEO to be separate or combined.

SinceMr. Dewey succeeded Mr. Host as CEO of Trustmark and the Bank on January 1, 2011,2021, at which time Mr. Host became Executive Chairman of Trustmark has operated under aand the Bank. In his role as Executive Chairman, Mr. Host focused on issues involving board leadership structure with separate roles for Boardgovernance, corporate strategy, corporate development, investor relations, industry engagement and civic leadership. Following the 2022 annual meeting of shareholders, Mr. Host ceased serving as Executive Chairman, and CEObecame Board Chair.

Trustmark’s Board Charter and since May 10, 2011, Trustmark has had an independent Board Chairman.

All members of the Committee during 2022 were and currently are “non-employee directors” within the settingmeaning of management compensation.

Rule 16b-3 under the Securities Exchange Act of 1934 (the Exchange Act), “outside directors” within the meaning of Section 162(m) of the Internal Revenue Code of 1986, as amended, and “independent directors” within the meaning of Rule 5605(a)(2) of the Nasdaq listing rules. The purpose and responsibilities of the Human Resources Committee are described in greater detail in its Charter, which is posted on Trustmark’s website at www.trustmark.com underInvestor Relations/Corporate Governance/Human Resourcesinvestorrelations.trustmark.com.

Nominating & Governance Committee Charter.

Nominating Committee

The purpose of the Nominating & Governance Committee is charged withto assist the responsibility of seeking, interviewing andBoard in recommending qualified individuals for election or re-election to the Board qualified candidatesand for assignment to Board committees, and to provide guidance on Board and committee membership.corporate governance issues. The Committee also evaluates the annual performance of the Board and its committees. In fulfilling its role, the Committee’s responsibilities include:

The purpose and responsibilities of the Nominating & Governance Committee are described in greater detail in its Charter, which is posted on Trustmark’s website at www.trustmark.com underInvestor Relations/Corporate Governance/Nominating Committee Charter.investorrelations.trustmark.com.

to vote at the meeting and intends to appear in person or by proxy at the meeting to nominate the proposed nominee, and (h) the written consent of each proposed nominee to serve as a director of Trustmark if so elected.elected and (i) a representation as to whether the notifying shareholder intends or is part of a group which intends to solicit proxies or votes in support of such director nominees in accordance with Rule 14a-19 under the Exchange Act. In addition, such notification must include the information required by Rule 14a-19(b) under the Exchange Act if the notifying shareholder intends to solicit proxies or votes in support of director nominees in accordance with Rule 14a-19 under the Exchange Act.

Nominations not made in accordance with the above procedurebylaw procedures may be disregarded by the ChairmanChair of the Board of the annual meeting at his discretion, and upon his instruction, all votes cast for each such nominee may be disregarded.

Trustmark’s bylaws permit direct nominations by shareholders. Therefore, the Nominating & Governance Committee does not have a policy for considering nominations by shareholders other than through the bylaw process outlined above. However, if a shareholder wishes to recommend an individual for Board service, rather than directly nominate the individual as set forth above, the shareholder may submit the individual’s name to the Nominating & Governance Committee by email to boardofdirectors@trustmark.com, or in writing addressed to Trustmark Corporation Nominating & Governance Committee, Post Office Box 291, Jackson, MS 39205 or by email to boardofdirectors@trustmark.com.39205. In order to give the Nominating & Governance Committee adequate time to consider any such individual for nomination as a director at the 20172024 Annual Meeting of Shareholders, such recommendations should be delivered no later than October 1, 2016.2023. In considering an individual recommended by a shareholder but not directly nominated, the Nominating & Governance Committee will use the same guidelines as set forth in the Director Qualifications section below.

When identifying potential candidates for director nominees, the Nominating & Governance Committee may solicit suggestions from incumbent directors, management or others. With regard

Environmental, Social and Governance/Corporate Social Responsibility (ESG/CSR)

Trustmark believes that a company’s commitment to corporate social responsibility is measured by its sustainability, environmental, and societal impact. These factors are critical to long-term business viability. Trustmark understands that a company’s performance must be measured not only by shareholder returns, but also by how it achieves ESG/CSR objectives. The company employs a Director of Corporate Social Responsibility to monitor the proposed nomineescontinuing effectiveness of its program. Robust community engagement, informed policies and procedures, and responsible philanthropy are some of the ways in which Trustmark continues to serve its communities and workforce. Accomplishments in these areas of focus were highlighted in Trustmark’s first annual CSR Impact Report, published in 2022 and available at Trustmark.com.

Board Oversight.The Board has responsibility for 2016, all nomineesoverseeing Trustmark’s strategies, policies, and programs relating to ESG/CSR matters, including environmental sustainability, community development and reinvestment, and charitable giving and other programs with social impacts. As described above, the Human Resources Committee reviews and approves Trustmark’s policies and practices regarding social responsibility issues relating to human resources, such as equal opportunity employment, diversity and inclusion.

CSR Engagement and Investment.Trustmark’s continued commitment to corporate social responsibility was demonstrated in 2022 through services provided to customers, partnerships formed in communities, and opportunities presented to associates. The company’s strategically aligned activities reflect its core values of Integrity, Service, Accountability, Relationships and Solutions. In 2022, Trustmark invested more than $4 million in the form of contributions and sponsorships to local organizations, including a $1.5 million tax credit investment allocated to 13 Mississippi youth and family-based charities providing services and programs for the welfare and development of children as part of Trustmark’s commitment under the Mississippi Children’s Promise Act.

Trustmark continued to focus on financial literacy and community outreach in 2022, with associates volunteering more than 6,519 hours of service to local partners through positions on non-profit boards of directors, financial literacy outreach and other forms of community engagement. The company also continued to partner with EVERFI, Inc., to provide online financial literacy courses in schools throughout Mississippi to educate students on financial matters through Trustmark’s Financial Scholars Program. The EVERFI Engage platform was also made available to Trustmark associates to conduct community-based financial literacy sessions, both in-person and virtually.

Additional financial literacy support was provided through Trustmark’s continued partnership with Operation HOPE, Inc., a national non-profit organization. Trustmark continued to engage with the organization in 2022 to implement the HOPE Inside program within the markets of Memphis, Tennessee; Montgomery, Alabama; and Jackson, Mississippi to provide banking customers and members of the public with opportunities to receive financial tools and education to strengthen their financial security. Trustmark’s investment of $200,000 in each of these markets provides a two-year commitment to support a dedicated financial wellness coach to administer the HOPE Inside program. The coaches conduct financial literacy seminars, individualized financial counseling sessions and provide referrals to disaster relief services. These services and resources are current Board members, exceptprovided at no cost to community residents, and extend to city employees and first responders in each of the designated markets. In 2022, more than 3,320 services were provided through Trustmark’s partnership with Operation HOPE.

Trustmark values partnerships that serve diverse communities, and it embraces opportunities to engage in that work. In 2022, Trustmark participated in collaborative partnerships with two minority depository institutions (MDIs), through the Project Roundtable for Mr. Morrissette, who was recommendedEconomic Access and Change (REACh) Initiative, developed by the CEOOCC. Project REACh aims to identify and reduce barriers to full, fair participation in the nation’s banking system and the Chairmaneconomy to help expand access to credit and capital.

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Trustmark announced its partnership under the program with newly formed Agility Bank in early 2022. Agility Bank, based in Houston, Texas, is the first primarily women-owned and led bank in the United States under the MDI national charter of the Board.OCC. Trustmark entered a second year of collaboration in 2022 with Commonwealth National Bank, which has served the Mobile, Alabama banking community since 1976. Commonwealth National Bank is one of fewer than 25 black-owned banks remaining in the United States.

Trustmark’s commitment to building and supporting resilient communities also includes revitalizing and strengthening underserved communities. In 2022, its investments in low-to-moderate income areas included more than $347 million in home mortgage loans, $542 million in small business loans and small farm loans and more than $172 million in community development loans. Also in 2022, Trustmark provided low-to-moderate income borrowers more than $510 million in home mortgage loans. The company’s collaborative work with community service providers, developers, realtors, housing advocates and others resulted in more than $34.5 million in investments that provide affordable housing, employment and community services for those with low-to-moderate incomes. Trustmark also enhanced its mortgage product offerings during the year to meet the special credit needs of low-to-moderate income individuals and communities. Trustmark employs a dedicated team of associates to provide oversight of initiatives that advance financial growth and stability within racially and economically diverse communities. The Diverse Market Strategy Team coordinates with business units at Trustmark to develop innovative lending strategies, inclusive outreach events, targeted marketing campaigns, and special purpose products and programs to meet the unique needs of diverse communities throughout the company’s footprint.

Human Capital and Workforce Diversity.Trustmark’s commitment to serve diverse communities extends to its workforce practices. Trustmark’s Diversity Officer works within the Human Resources Department to develop and oversee diverse training, recruitment and retention practices. The company has introduced several initiatives to support a workforce culture of diversity through educational diversity training for management and all associates, including the development of a training course that emphasizes management’s role in hiring a diverse and inclusive workforce. Three HR associates hold a Diversity, Equity and Inclusion certificate from the University of South Florida’s Muma College of Business and, in 2022, represented Trustmark in the American Bankers Association’s Black Bankers Employee Resource Group. Trustmark also continues to socialize cultural observances through a community calendar of events to promote a culture of inclusivity and engagement among associates. Additionally, in 2022, Trustmark launched its second cycle of the Emerging Talent Program, designed to identify and develop high-performing associates through management mentorship.

Environmental Sustainability.Throughout the year, Trustmark promoted environmental sustainability through business practices that conserve natural resources, including the sponsorship of numerous community shredding events to encourage recycling initiatives. Trustmark also provides shredding services at all buildings and branch locations, offers enhanced digital banking options and processes for customers, and utilizes internal workflow management systems to reduce paper usage. Additionally, an LED light conversion project was continued across the organization in 2022 to increase energy efficiency, in which 15 additional Trustmark buildings were retrofitted with LED lighting. Programmable thermostats and HVAC control systems installed last year in Trustmark buildings to conserve and monitor energy use resulted in usage declines between 25-40 percent. Trustmark’s proactive environmental business practices were matched with its responsiveness to weather-induced events in 2022 through the activation of comprehensive disaster recovery and business continuity plans. The plans detail the responsibilities of key positions, instructions on ways to continue operations throughout the progression of weather-related events, and timeframes by which key tasks must be accomplished. Trustmark is committed to assessing environmental risks to its operations, including those associated with increasing climate change concerns.

Director Qualifications

The Board believes that in order to appropriately carry out its roles, directors must demonstrate a variety of personal traits, leadership qualities and individual competencies. In considering nominees submitted by the Board or management and any recommendations submitted by shareholders, the Nominating & Governance Committee will use these personal traits, leadership qualities and individual competencies to assess future director nominees’ suitability for Board service. The Nominating & Governance Committee also evaluates each director nominee’s qualities in the context of how that nominee would relate to the Board as a whole, in light of the Board’s current composition and Trustmark’s evolving needs.

Although Trustmark has no formal policy regarding diversity, the Nominating & Governance Committee believes that the Board should include directors with diverse skills, experience and business knowledge, and whose backgrounds, ages, geographical representation and community involvement contribute to an overall diversity of perspective that enhances the quality of the Board’s deliberations and decisions. The Nominating & Governance Committee may consider these factors as it deems appropriate in connection with the general qualifications of each director nominee. To be eligible to serve on the Board, each director is required to own in his or her own right, common or preferred stock of Trustmark having an aggregate par, fair market or equity value of not less than $1,000 as of the most recent of (i) the date of purchase, (ii) the date the person became a director, or (iii) the date of the director’s most recent election to the Board. In addition, each director must own a minimum of 6,000 shares of Trustmark stock within five years of joining the Board. Upon attaining the age of 70, a director is required to retire from the Board effective upon completion of his or her then current term of office.

Personal Traits

Board service is an extremely important, high profilehigh-profile role and carries with it significant responsibility. For that reason, it is important that all directors possess a certain set of personal traits, including:

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Leadership Qualities

For individuals considered for Board leadership roles, the following skill sets are required:

Individual Competencies

There are certain competencies that must be represented collectively by the directors on each Board committee, but each individual director need not necessarily possess all of them. The specific competencies vary by committee, as illustrated in the chart below:

Specific Director Experience, Qualifications, Attributes and Skills

The Nominating Committee assists the Board by identifying individuals qualified to serve as Board members and by recommending to the Board the director nominees for election at the next annual meeting of shareholders. The Board believes that each director nomineeperson nominated for election at the Annual Meeting possesses the personal traits described above and that each director nominee forwho has served in a position of Board leadership also demonstrates the additional leadership qualities described above. In considering the director nominees’ individual competencies, the Board believes that the appropriate competencies are represented for the Board as a whole and for each of the Board’s committees. In addition, each nominee possesses characteristics that led the Board to conclude that such person should serve as a director. The specific experience, qualifications, attributes and skills that the Board believes each nominee possesses are discussed under Proposal 1 in the table entitled “The Nominees,” beginning on page 9.

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PROPOSAL 1: ELECTION OF DIRECTORS

The Board has fixed the number of directors for the coming year at eleven. David H. Hoster II, a current director who has served on the Board since 2008, has reached the Board’s mandatory retirement age and is not eligible to stand for re-election to the Board at the Annual Meeting. Mr. Hoster’s service as a director will end at the Annual Meeting. 11.

The nominees listed herein have been proposed by the Board for election at the meeting.Annual Meeting. Shares represented by valid proxies will, unless authority to vote is withheld, be voted in favor of the proposed slate of eleven11 nominees. InDirectors must receive a majority of the election of directors, each shareholder may vote his shares cumulatively by multiplyingvotes cast in order to be elected (that is, the number of shares he is entitled to vote byvoted “for” a director must exceed the number of directors to be elected. This product constitutes the number of votes the shareholder may cast for one nominee or distribute among any number of nominees. The proxies reserve the right, in their discretion, to vote cumulatively.shares voted “against” that director). If a shareholder withholds authority for onenominee who is an incumbent director is not elected to the Board, and no successor is elected, such nominee must tender his or more nominees and does not direct otherwise,her resignation to the total number of votesBoard. The Nominating & Governance Committee will then make a recommendation to the shareholder is entitled to cast will be distributed among the remaining nominees.

Should any of these nominees be unableBoard on whether to accept or reject the nomination,resignation or whether to take other action. The director who tenders his or her resignation may not participate in the votes which otherwise would have been cast forrecommendation of the nominee(s) will be voted for such other person(s) asNominating & Governance Committee or the decision of the Board shall nominate.with respect to his or her resignation. Each director is elected to hold office until the next annual meeting of shareholders or until a successor is elected and qualified. The persons who will be elected to the Board will be the eleven nominees receiving the highest number of votes.

The Board recommends that shareholders vote “for”“FOR” the proposed nominees.

The Nominees

		Adolphus B. Baker, 5966 Director of Trustmark since 2007 (Independent Director)   Trustmark Corporation Committees:     •    Enterprise Risk     •·   Human Resources (Chair) ·   Nominating & Governance		Career Highlights:          •·   Chairman, President and CEO, Cal-Maine Foods, Inc.                   (Producer(Producer and Distributor of Shell Eggs)   Other Directorships:Public Company Boards:          •    Trustmark National Bank          •·   Cal-Maine Foods, Inc.

Experience and qualifications:Mr. Baker’s position as presidentBaker is chairman and former chief executive officer and chairman of anothera publicly-traded company that is the largest producer and distributor of shell eggs in the United States. His position has provided him with significant business leadership skills and experience in evaluating strategic alternatives that focus on maximizing shareholder value. Mr. Baker’s years of service as a director for Trustmark Nationalof the Bank, and particularly as the former chair of the Bank Board’s Asset Asset/Liability Committee Chairman,(the responsibilities of which are now performed by the Finance Committee), provide him with an intrinsic understanding of Trustmark’s strategy for managing liquidity, which is a skill essential to the Board’s risk oversight function. He is a member of the National Association of Corporate Directors.

		William A. Brown, 65 Director of Trustmark since 2017 (Independent Director) Trustmark Corporation Committees: ·   Audit ·   Enterprise Risk		Career Highlights: ·   Chairman, Brown Group Holdings, Inc. (Soft Drink Manufacturing) ·   President, Brown Bottling Group, Inc. (Beverage Distributor)

Experience and qualifications: Mr. Brown serves as chairman of a soft drink manufacturing business and president of a regional beverage distributor based in Mississippi. He serves on the Boards of the Pepsi Cola Bottlers Association and Wis-Pak/WP Beverages as well as trade associations, including the Mississippi Beverage Association. His extensive experience in this industry has provided him with significant marketing and business leadership skills as well as in-depth understanding of the business climate and customer base in significant Trustmark markets. Mr. Brown also served as Chair of the Bank Board’s Credit Policy Committee (the responsibilities of which are now performed by the Enterprise Risk Committee), providing him with an understanding of Trustmark’s credit culture and philosophy, which is a skill essential to the Board’s risk oversight function. He is a member of the National Association of Corporate Directors.

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		Augustus L. Collins, 65 Director of Trustmark since 2020 (Independent Director) Trustmark Corporation Committees: ·   Audit ·   Enterprise Risk ·   Human Resources		Career Highlights: ·   CEO, MINACT Inc. (Job Training, Development and Management) Other Public Company Boards: ·   Huntington Ingalls Industries ·   Mississippi Power Company

Experience and qualifications: General Collins has served as the CEO of MINACT Inc., a job training, development and management company, since 2016. He retired with the rank of Major General in the Mississippi National Guard, having served as Adjutant General of both the Mississippi Army National Guard and the Mississippi Air National Guard from 2012 to 2016. His 35 years of combined military service in the U.S. Army and the Mississippi National Guard included the command of the 155th Brigade Combat Team in Iraq, where he was responsible for security operations in the southern and western provinces. He was previously appointed by the Governor to the Mississippi Workers’ Compensation Commission where he served as the commission’s representative of labor. General Collins’ years of service and leadership provide him with valuable experience in strategic and financial planning as well as human resources. He is a member of the National Association of Corporate Directors.

Experience and qualifications:Mrs. Conerly’sConerly is a certified public accountant and a former certified valuation analyst. Her experience as a former partner at a large certified public accounting firm and former director of BancTrust Financial Group, Inc. (BancTrust), which was acquired by Trustmark in 2013, has provided her with significant financial and accounting expertise, in particularparticularly in the areas of auditing, business valuation and tax.tax, and qualifies her for service as one of the Board’s audit committee financial experts. Mrs. Conerly’s years of service as a director of BancTrust, and BancTrust’s subsidiary banks in Alabama and Florida,a publicly-traded financial institution provide her with valuable experience in financial institution governance and an understanding of markets that are a strategic focus for Trustmark. Mrs. Conerly also served on the Bank Board’s Asset/Liability Committee (the responsibilities of which are now performed by the Finance Committee), providing her with an understanding of Trustmark’s balance sheet strategy, which is a skill essential to the Board’s risk oversight function. She is a member of the National Association of Corporate Directors.

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		Toni D. Cooley, 55Duane A. Dewey, 64 Director of Trustmark since 20132020   Trustmark Corporation Committees: •    Enterprise Risk (Chairman) •·   Executive		Career Highlights:         •    CEO, Systems Electro Coating, LLC·   President and Chief Executive Officer, Trustmark Corporation (Provider of Electrocoating·   President and Related Services to Original Equipment Manufacturers) Other Directorships:         •Chief Executive Officer, Trustmark National Bank         •    Sanderson Farms, Inc.

Experience and qualifications: Ms. Cooley is theMr. Dewey became president and chief executive officer of Trustmark and the Systems GroupBank on January 1, 2021. He was formerly president and chief operating officer of Companies, which includes Systems Electro Coating, LLC, a Tier One supplierthe Bank from January 1, 2020, to Nissan,December 31, 2020. He served as chief operating officer of the Bank from January 1, 2019, to December 31, 2019, and Systems Automotive Interiors, a Tier One supplieras President of Corporate Banking from 2008 to Toyota. She holds a Juris Doctor degree2018. Mr. Dewey, with 19 years of experience at Trustmark and is a director for another publicly-traded company as well as several non- public organizations. In addition, Ms. Cooley37 years in the financial services industry, has served onworked in diverse geographic markets and in numerous lines of banking businesses. His executive management responsibilities in retail and institutional banking, mortgage, wealth management and insurance services enable him to provide valuable operational, strategic and financial perspectives to the Trustmark National Bank board asBoard. Mr. Dewey is a member of both the Credit Policy and Enterprise Risk Committees, which has given her a solid understandingNational Association of Trustmark’s core business and conservative values. Her leadership experience and business knowledge, with expertise in fields ranging from law to operations and technology, equip Ms. Cooley with the ability to contribute invaluable insight and broad perspective to Board discussions.Corporate Directors.

		Daniel A. Grafton, 69Marcelo Eduardo, 60 Director of Trustmark since 20072020 (Independent Director)   Trustmark Corporation Committees: •·   Audit ·   Executive (Chairman) •    Human Resources·   Finance (Chair) •·   Nominating & Governance		Career Highlights:         •    Retired President, L-3 Communications              Vertex Aerospace (Provider·   Dean, School of Aviation and Aerospace Services)         •    Chairman, Trustmark Corporation         •    Chairman, Trustmark National Bank Other Directorships:         •    Trustmark National BankBusiness, Mississippi College

Experience and qualifications:  Prior to his retirement,qualifications: Mr. GraftonEduardo has served as presidentthe Dean of the School of Business at a leading aviationprivate college in Mississippi since 2003. He holds Ph.D. (Finance) and aerospaceMBA degrees and serves as the Anderson Distinguished Professor of Finance at Mississippi College. Mr. Eduardo, an accomplished academic, has authored numerous articles on a variety of topics, including investment management, compliance, capital management and the pricing of retail banking services, provider. Duringwhich have been published in national and international journals. His expertise in banking and corporate finance, combined with his career,proven marketing and leadership skills, provide valuable marketing, strategic and financial perspectives to the Board, and qualifies him for service as one of the Board’s audit committee financial experts. Mr. GraftonEduardo also served as president and chief executive officer as well as chief operating officer for Raytheon Aerospace, a division of Raytheon Company, a publicly-traded company. His extensive business background, together with his experience on numerous boards and committees, has equipped him with the leadership and consensus-building skills necessary to serve as the ChairmanChair of the BoardBank Board’s Asset/Liability Committee (the responsibilities of which are now performed by the Finance Committee). He is a member of the National Association of Corporate Directors.

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		J. Clay Hays, Jr., M.D., 57 Director of Trustmark since 2017 (Independent Director) Trustmark Corporation Committees: ·   Enterprise Risk (Chair) ·   Executive ·   Nominating & Governance		Career Highlights: ·   Cardiologist, Partner, President, Jackson Heart Clinic, PA

Experience and Executivequalifications: Dr. Hays is president of Jackson Heart Clinic, PA, one of the largest cardiology groups in Mississippi. He is a former chairman of the Mississippi Healthcare Solutions Institute and former director and past president of the Mississippi State Medical Association. He serves as director and secretary of the Medical Assurance Company of Mississippi, a statewide medical malpractice insurer. He is also a Mississippi Delegate to the American Medical Association House of Delegates and Chair Elect of the Southeast Delegation of the AMA House of Delegates. With extensive experience in the medical industry, Dr. Hays is uniquely positioned to advise Trustmark on the healthcare industry. Dr. Hays also served on the Bank Board’s Asset/Liability Committee Chairman.(the responsibilities of which are now performed by the Finance Committee). He is a member of the National Association of Corporate Directors.

		Gerard R. Host, 6168 Director of Trustmark since 2010   Chair of Trustmark Board since April 2022 Executive Chairman of Trustmark Board from January 2021 to April 2022 Trustmark Corporation Committees: •·   Executive		Career Highlights: ·   Former Executive Chairman, Trustmark Corporation and Trustmark National Bank  • ·   Former President and CEO, Trustmark Corporation •    President and CEO, Trustmark National Bank Other Directorships:         • Trustmark National Bank

Experience and qualifications:Mr. Host becamehas served as Chair of Trustmark and the Bank since April 2022. He served as Executive Chairman of Trustmark and the Bank from January 1, 2021 to April 26, 2022. Mr. Host served as president and chief executive officer of Trustmark Corporation and Trustmark Nationalchief executive officer of the Bank effectivefrom January 1, 2011, havingto December 31, 2020, and served as president and chief operating officer of Trustmark Nationalthe Bank priorfrom 2011 to that time.December 31, 2019. He also currently servesserved as a director of the Federal Reserve Bank of Atlanta.Atlanta from 2012 until the end of his second term on December 31, 2018. Throughout his 38-year tenure with Trustmark, Mr. Host has served in a variety of executive management capacities, including chief financial officer, chief investment officer and president of various divisions. Mr. Host’s in-depth knowledge of Trustmark’s operations and of the financial services industry enables him to provide both historical and strategic perspectives in Board discussions regarding corporate strategy and governance matters. He is a member of the National Association of Corporate Directors.

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		John M. McCullouch, 68 Director of Trustmark since 2005 Trustmark Corporation Committees:     •    Enterprise Risk     •    Executive     •    Human Resources (Chairman)     •    Nominating (Chairman)		Career Highlights:         •    Associate Dean - Metro Jackson, University              of Mississippi School of Law         •    Retired President, AT&T Mississippi Other Directorships:         •    Trustmark National Bank

Experience and qualifications:  Mr. McCullouch is an associate dean of the University of Mississippi School of Law and was the president of the Mississippi division of a major telecommunications company. Mr. McCullouch’s legal background and business acumen provide him with the necessary skills to assess corporate governance matters and formulate strategy relative to Board planning and oversight. In addition, through his broad and extensive service on other non-public boards, Mr. McCullouch is attuned to the necessity of diversity from various perspectives, which is essential to his service as Nominating Committee Chairman and as Human Resources Committee Chairman.

		Harris V. Morrissette, 5663 Nominated for Director of Trustmark since 2016 Trustmark in 2016(Independent Director)   Trustmark Corporation Committees: ·   Enterprise Risk ·   Finance ·   Human Resources		Career Highlights: •·   President, China Doll Rice & Beans, Inc.      Inc. / Dixie Lily Foods(Regional Packaged and Food Services Company) •·   Former President and CEO, Marshall Biscuit Company, Inc.		Other Directorships:         •    Trustmark National Bank         •    International Shipholding Corporation Former Directorships:         •    BancTrust Financial Group, Inc.·   Williamsburg Investment Trust

Experience and qualifications:qualifications: Mr. Morrissette serves as the president of a regional packaged food and food services company based in Alabama. His extensiveprior years of service as a director of a publicly-traded financial institution provide him with valuable experience in this industry has providedfinancial institution governance and an understanding of markets that are a strategic focus for Trustmark. In addition, Mr. Morrissette’s background and business acumen provide him with significant marketingthe skills necessary to contribute invaluable insight and business leadership skills. Mr. Morrissettebroad perspectives to Board discussions. He also servesserved on the Bank Board andBoard’s Credit Policy Committee (the responsibilities of which are now performed by the Enterprise Risk Committee). Mr. Morrissette is a former directormember of BancTrust, providing him with valuable industry knowledge.the National Association of Corporate Directors.

		Richard H. Puckett, 6168 Director of Trustmark since 1995 Lead Director of Trustmark since 2020 (Independent Director)   Trustmark Corporation Committees:     •    Audit and Finance·   Executive (Chair/Lead Director)     •    Executive·   Human Resources     •·   Nominating & Governance (Chair/Lead Director)		Career Highlights:         •·   Chairman and CEO, Puckett Machinery Company                  (Distributor(Distributor of Heavy Earth Moving Equipment) Other Directorships:         •    Trustmark National BankEquipment and Engine Power Systems)

Experience and qualifications:Mr. Puckett is the chairman and chief executive officer of a heavy equipment distribution and rental company with facilities located in Mississippi and eastern Louisiana that serves southern Mississippi, including Jackson, Mississippi, where Trustmark maintains its administrative headquarters.provide heavy equipment, engine power solutions and related supplies to a variety of industries. Mr. Puckett brings marketing and business leadership skills to the Board, as well as an in-depth understanding of the business climate and customer base in Trustmark’s major legacy markets.

		R. Michael Summerford, 67 Director of Trustmark since 2005 Trustmark Corporation Committees: •    Audit and Finance (Chairman) •    Executive •    Human Resources •    Nominating		Career Highlights:         •    Former President and COO, ChemFirst, Inc. (Manufacturer of Electronic and Specialty Chemicals) Other Directorships:         •    Trustmark National Bank

Experience His experience and qualifications:  Mr. Summerford has served as the president and chief operating officer and chief financial officer of another publicly-traded company. He was also a certified public accountant. His career experience has resulted in Mr. Summerford’s expertise in understanding financial statements, accounting methodologies and compensation practices, which is essentialBoard tenure provided valuable perspective to his service ason the Audit and FinanceBank Board’s Credit Policy Committee Chairman, as(the responsibilities of which are now performed by the audit committee financial expert and asEnterprise Risk Committee). Mr. Puckett is a member of the Human Resources Committee.National Association of Corporate Directors.