TRMK / Trustmark Corporation - Depositi SEC, Relazione annuale, dichiarazione di delega

Trustmark Corporation
US ˙ NasdaqGS ˙ US8984021027

Statistiche di base
LEI 5493000HPQ4D2RZ79739
CIK 36146
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Trustmark Corporation
SEC Filings (Chronological Order)
Questa pagina fornisce un elenco completo e cronologico dei depositi SEC, esclusi i documenti di proprietà che forniamo altrove.
August 5, 2025 EX-32.B

Certification by Principal Financial Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.

August 5, 2025 EX-32.A

Certification by Chief Executive Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.

August 5, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 000-03683 Trustmark Corporation

August 5, 2025 EX-31.B

Certification by Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Thomas C.

August 5, 2025 EX-31.A

Certification by Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Duane A.

August 4, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 August 4, 2025 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 August 4, 2025 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission

July 28, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 July 24, 2025 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATIO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 July 24, 2025 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission F

July 22, 2025 EX-99.1

Trustmark Corporation Announces Second Quarter 2025 Financial Results Profitability Metrics Continue to Expand; Strong Performance Reflects Loan and Deposit Growth, Stable Credit Quality, Robust Fee Income and Disciplined Expense Management

EX-99.1 2 trmk-ex991.htm EX-99.1 Exhibit 99.1 News Release Trustmark Corporation Announces Second Quarter 2025 Financial Results Profitability Metrics Continue to Expand; Strong Performance Reflects Loan and Deposit Growth, Stable Credit Quality, Robust Fee Income and Disciplined Expense Management JACKSON, Miss. – July 22, 2025 – Trustmark Corporation (NASDAQGS:TRMK) reported net income of $55.8

July 22, 2025 EX-99.2

(1) (2) (2) (2)

Exhibit 99.2 (1) (1) (1) (2) (2) (2) (2)

July 22, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 July 22, 2025 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATIO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 July 22, 2025 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission F

June 25, 2025 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 000-03683 Full title of the plan and the

May 22, 2025 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 May 21, 2025 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission Fi

May 6, 2025 EX-32.A

Certification by Chief Executive Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.

May 6, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 000-03683 Trustmark Corporation

May 6, 2025 EX-31.A

Certification by Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Duane A.

May 6, 2025 EX-32.B

Certification by Principal Financial Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.

May 6, 2025 EX-31.B

Certification by Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Thomas C.

April 23, 2025 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 22, 2025 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission

April 22, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 22, 2025 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission

April 22, 2025 EX-99.1

Trustmark Corporation Announces First Quarter 2025 Financial Results Strong Performance reflects Continued Loan Growth, Stable Credit Quality, Expanded Fee Income, and Lower Noninterest Expense

Exhibit 99.1 News Release Trustmark Corporation Announces First Quarter 2025 Financial Results Strong Performance reflects Continued Loan Growth, Stable Credit Quality, Expanded Fee Income, and Lower Noninterest Expense JACKSON, Miss. – April 22, 2025 – Trustmark Corporation (NASDAQGS:TRMK) reported net income of $53.6 million in the first quarter of 2025, representing diluted earnings per share o

April 22, 2025 EX-99.2

(1) (2) (2) (2)

Exhibit 99.2 (1) (1) (1) (2) (2) (2) (2)

March 12, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. __) Filed by the Registrant ☒ Filed by a Party other than the Registr

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

March 12, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. __)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14

March 12, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. __) Filed by the Registrant ☒ Filed by a Party other than the Registr

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

February 19, 2025 EX-21

List of Subsidiaries.

Exhibit 21 LIST OF SUBSIDIARIES The following is a list of all subsidiaries of Trustmark Corporation as of December 31, 2024, and the jurisdiction in which each was organized.

February 19, 2025 EX-19

Trustmark Corporation Insider Trading Policy.

Exhibit 19 Insider Trading Policy Amended February 4, 2025 Version 8.2 Insider Trading Policy Table of Contents 2 Purpose 4 3 Goals/Objectives of the Policy 4 4 Scope of the Policy 4 4.1 General Prohibition 4 4.2 “Inside Information” Defined 5 4.3 Violations of Insider Trading Laws 5 5 Target Audience 6 5.1 Generally 6 5.2 Additional Provisions Applicable to Insiders 6 6 Roles and Responsibilities

February 19, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 for the fiscal year ended December 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number 000-3683 TRUSTMARK CORPORATION (Exact name of Registrant as specified

February 19, 2025 EX-32.A

Certification by Chief Executive Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.

February 19, 2025 EX-31.A

Certification by Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Duane A.

February 19, 2025 EX-31.B

Certification by Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Thomas C.

February 19, 2025 EX-32.B

Certification by Principal Financial Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.

February 19, 2025 EX-10.AA

Exhibit 4 Company Contribution in Respect of the Year Ending December 31, 2025 to the Trustmark Corporation Deferred Compensation Plan.

Exhibit 10-aa TRUSTMARK CORPORATION DEFERRED COMPENSATION PLAN EXHIBIT 4 COMPANY CONTRIBUTION IN RESPECT OF THE YEAR ENDING DECEMBER 31, 2025 WHEREAS, Trustmark Corporation, a Mississippi corporation (the “Company”), maintains the Trustmark Corporation Deferred Compensation Plan, amended and restated as of December 31, 2007 and further amended as of October 4, 2022 (the “Plan”); WHEREAS, all capit

January 28, 2025 EX-99.1

Trustmark Corporation Announces Fourth Quarter and Fiscal Year 2024 Financial Results Earnings and profitability significantly enhanced, share repurchase activity resumed, quarterly cash dividend increased

Exhibit 99.1 News Release Trustmark Corporation Announces Fourth Quarter and Fiscal Year 2024 Financial Results Earnings and profitability significantly enhanced, share repurchase activity resumed, quarterly cash dividend increased JACKSON, Miss. – January 28, 2025 – Trustmark Corporation (NASDAQGS:TRMK) reported net income of $56.3 million in the fourth quarter of 2024, representing diluted earni

January 28, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 January 28, 2025 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commissio

January 28, 2025 EX-99.2

(1) (2) (2) (2)

(1) (1) (2) (2) (2) (2)

December 3, 2024 8-K/A

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 December 3, 2024 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commiss

December 3, 2024 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 December 3, 2024 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commissio

November 5, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 000-03683 Trustmark Corpora

November 5, 2024 EX-32.A

Certification by Chief Executive Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.

November 5, 2024 EX-10.AS

Exhibit 3 Company Contribution in Respect of the Year Ending December 31, 2024 to the Trustmark Corporation Deferred Compensation Plan.

Exhibit 10-as TRUSTMARK CORPORATION DEFERRED COMPENSATION PLAN EXHIBIT 3 COMPANY CONTRIBUTION IN RESPECT OF THE YEAR ENDING DECEMBER 31, 2024 WHEREAS, Trustmark Corporation, a Mississippi corporation (the “Company”), maintains the Trustmark Corporation Deferred Compensation Plan, amended and restated as of December 31, 2007 and further amended as of October 4, 2022 (the “Plan”); WHEREAS, all capit

November 5, 2024 EX-32.B

Certification by Principal Financial Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.

November 5, 2024 EX-31.A

Certification by Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Duane A.

November 5, 2024 EX-31.B

Certification by Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Thomas C.

October 24, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 October 22, 2024 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commissio

October 22, 2024 EX-99.2

(1) (2)

Exhibit 99.2 (1) (1) (2) (2)

October 22, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 October 22, 2024 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commissio

October 22, 2024 EX-99.1

Trustmark Corporation Announces Third Quarter 2024 Financial Results Performance Reflects Increased Earnings, Enhanced Profitability, and Strengthened Capital Flexibility

Exhibit 99.1 News Release Trustmark Corporation Announces Third Quarter 2024 Financial Results Performance Reflects Increased Earnings, Enhanced Profitability, and Strengthened Capital Flexibility JACKSON, Miss. – October 22, 2024 – Trustmark Corporation (NASDAQGS:TRMK) reported net income of $51.3 million in the third quarter of 2024, representing diluted earnings per share of $0.84. In the secon

October 17, 2024 SC 13G

TRMK / Trustmark Corporation / STATE STREET CORP Passive Investment

SC 13G 1 TrustmarkCorp.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* TRUSTMARK CORP (Name of Issuer) COMMON STOCK (Title of Class of Securities) 898402102 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of This Statement) Check the appropriate box to designate the rule pursuant to which

August 6, 2024 EX-32.B

Certification by Principal Financial Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.

August 6, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 000-03683 Trustmark Corporation

August 6, 2024 EX-31.A

Certification by Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Duane A.

August 6, 2024 EX-32.A

Certification by Chief Executive Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.

August 6, 2024 EX-31.B

Certification by Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Thomas C.

July 23, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 July 23, 2024 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission F

July 23, 2024 EX-99.2

(1) (2)

Exhibit 99.2 (1) (1) (2)

July 23, 2024 EX-99.1

Trustmark Corporation Announces Second Quarter 2024 Financial Results Completed Significant Actions to Increase Earnings, Enhance Profitability Profile, Reduce Risk, and Strengthen Capital Flexibility

Exhibit 99.1 News Release Trustmark Corporation Announces Second Quarter 2024 Financial Results Completed Significant Actions to Increase Earnings, Enhance Profitability Profile, Reduce Risk, and Strengthen Capital Flexibility JACKSON, Miss. – July 23, 2024 – Trustmark Corporation (NASDAQGS:TRMK) announced second quarter financial results which reflect the previously disclosed sale of Fisher Brown

June 26, 2024 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ ANNUAL REPORT PURSUANT TO S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 000-03683 Full title of the plan and the

June 3, 2024 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 May 31, 2024 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission Fi

May 7, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 000-03683 Trustmark Corporation

May 7, 2024 EX-31.B

Certification by Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Thomas C.

May 7, 2024 EX-10.AQ

Form of Performance Unit Agreement for Associate (under the Stock and Incentive Compensation

Exhibit 10.aq TRUSTMARK CORPORATION PERFORMANCE UNIT AGREEMENT (Associate) Granted <> This Performance Unit Agreement (“Agreement”) between you and Trustmark Corporation, a Mississippi corporation (“Trustmark”), evidences a grant of Performance Units (the “Award”) under the Trustmark Corporation Stock and Incentive Compensation Plan (the “Plan”), as of <> (the “Award Date”). This Agreement is subj

May 7, 2024 EX-10.AO

Form of Time-Based Restricted Stock Unit Agreement for Director (under the Stock and Incentive

Exhibit 10.ao TRUSTMARK CORPORATION TIME-BASED RESTRICTED STOCK UNIT AGREEMENT (Director) Granted <> This Time-Based Restricted Stock Unit Agreement (“Agreement”) between you and Trustmark Corporation, a Mississippi corporation (“Trustmark”), evidences a grant of Restricted Stock Units (the “Award”) under the Trustmark Corporation Stock and Incentive Compensation Plan (the “Plan”), as of <> (the “

May 7, 2024 EX-10.AP

Form of Time-Based Restricted Stock Unit Agreement for Associate (under the Stock and Incentive

Exhibit 10.ap TRUSTMARK CORPORATION TIME-BASED RESTRICTED STOCK UNIT AGREEMENT (Associate) Granted <> This Time-Based Restricted Stock Unit Agreement (“Agreement”) between you and Trustmark Corporation, a Mississippi corporation (“Trustmark”), evidences a grant of Restricted Stock Units (the “Award”) under the Trustmark Corporation Stock and Incentive Compensation Plan (the “Plan”), as of <> (the

May 7, 2024 EX-32.A

Certification by Chief Executive Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.

May 7, 2024 EX-10.AR

Amendment to Employment Agreement between Trustmark Corporation and Duane A. Dewey dated April 23, 2024.

Exhibit 10.ar AMENDMENT TO EMPLOYMENT AGREEMENT WHEREAS, Trustmark Corporation, a Mississippi corporation (the “Company”), and Duane A. Dewey (the “Executive”), have entered into an employment agreement dated October 27, 2020, and effective as of January 1, 2021 (the “Employment Agreement”); WHEREAS, Section 11.3 of the Employment Agreement provides that it may be amended by a written instrument s

May 7, 2024 EX-32.B

Certification by Principal Financial Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.

May 7, 2024 EX-31.A

Certification by Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Duane A.

April 24, 2024 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 23, 2024 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission

April 23, 2024 EX-99.3

Trustmark Announces Agreement to Sell Fisher Brown Bottrell Insurance, Inc. to Marsh & McLennan Agency LLC

Exhibit 99.3 News Release Trustmark Announces Agreement to Sell Fisher Brown Bottrell Insurance, Inc. to Marsh & McLennan Agency LLC JACKSON, Miss. – April 23, 2024 – Trustmark National Bank today announced that it has entered into a definitive agreement to sell its wholly owned subsidiary, Fisher Brown Bottrell Insurance, Inc., (“FBBINSURANCE”) to Marsh & McLennan Agency LLC for $345 million in c

April 23, 2024 EX-99.1

Trustmark Corporation Announces First Quarter 2024 Financial Results Loan Growth Moderates, Credit Quality Remains Stable Solid Growth in Fee Income and Disciplined Expense Management Reflected in Financial Results

Exhibit 99.1 News Release Trustmark Corporation Announces First Quarter 2024 Financial Results Loan Growth Moderates, Credit Quality Remains Stable Solid Growth in Fee Income and Disciplined Expense Management Reflected in Financial Results JACKSON, Miss. – April 23, 2024 – Trustmark Corporation (NASDAQGS:TRMK) reported net income of $41.5 million in the first quarter of 2024, representing diluted

April 23, 2024 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 23, 2024 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission

April 23, 2024 EX-99.2

Investor slide presentation for the period ended March 31, 2024

March 13, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. __)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14

March 13, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. __) Filed by the Registrant ☒ Filed by a Party other than the Registr

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

March 13, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. __) Filed by the Registrant ☒ Filed by a Party other than the Registr

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

February 15, 2024 EX-10.AM

Form of Performance Unit Agreement for Associate (under the Amended and Restated Stock and Incentive Compensation Plan).

Exhibit 10.am TRUSTMARK CORPORATION PERFORMANCE UNIT AGREEMENT (Associate) Granted <> This Performance Unit Agreement (“Agreement”) between you and Trustmark Corporation, a Mississippi corporation (“Trustmark”), evidences a grant of Performance Units (the “Award”) under the Trustmark Corporation Amended and Restated Stock and Incentive Compensation Plan (the “Plan”), as of <> (the “Award Date”). T

February 15, 2024 EX-32.A

Certification by Chief Executive Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.

February 15, 2024 EX-21

List of Subsidiaries.

Exhibit 21 LIST OF SUBSIDIARIES The following is a list of all subsidiaries of Trustmark Corporation as of December 31, 2023, and the jurisdiction in which each was organized.

February 15, 2024 EX-31.A

Certification by Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Duane A.

February 15, 2024 EX-31.B

Certification by Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Thomas C.

February 15, 2024 EX-32.B

Certification by Principal Financial Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.

February 15, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 for the fiscal year ended December 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number 000-3683 TRUSTMARK CORPORATION (Exact name of Registrant as specified

February 15, 2024 EX-10.AK

Form of Compensation Clawback Policy, adopted on October 24, 2023 and revised on January 23, 2024.

Exhibit 10.ak Trustmark Corporation Compensation Clawback Policy Adopted October 24, 2023 Revised January 23, 2024 Purpose The Board of Directors (the “Board”) of Trustmark Corporation (the “Corporation”) has adopted this Compensation Clawback Policy (the “Policy”), which provides for the recoupment of incentive-based compensation in the event of an accounting restatement. This Policy is intended

February 15, 2024 EX-10.AL

Form of Time-Based Restricted Stock Unit Agreement for Associate (under the Amended and Restated Stock and Incentive Compensation Plan).

Exhibit 10.al TRUSTMARK CORPORATION TIME-BASED RESTRICTED STOCK UNIT AGREEMENT (Associate) Granted <> This Time-Based Restricted Stock Unit Agreement (“Agreement”) between you and Trustmark Corporation, a Mississippi corporation (“Trustmark”), evidences a grant of Restricted Stock Units (the “Award”) under the Trustmark Corporation Amended and Restated Stock and Incentive Compensation Plan (the “P

February 13, 2024 SC 13G/A

TRMK / Trustmark Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv02121-trustmarkcorp.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 12)* Name of issuer: Trustmark Corp Title of Class of Securities: Common Stock CUSIP Number: 898402102 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the

February 9, 2024 SC 13G/A

TRMK / Trustmark Corporation / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 7 )* Trustmark Corp (Name of Issuer) Common Stock (Title of Class of Securities) 898402102 (CUSIP Number) December 29, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to desi

January 23, 2024 EX-99.2

Investor slide presentation for the period ended December 31, 2023

(1) (1)

January 23, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 January 23, 2024 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commissio

January 23, 2024 EX-99.1

Trustmark Corporation Announces Fourth Quarter and Fiscal Year 2023 Financial Results Performance Reflects Continued Loan and Deposit Growth, Solid Credit Quality, and Diversified Revenue Base

Exhibit 99.1 News Release Trustmark Corporation Announces Fourth Quarter and Fiscal Year 2023 Financial Results Performance Reflects Continued Loan and Deposit Growth, Solid Credit Quality, and Diversified Revenue Base JACKSON, Miss. – January 23, 2024 – Trustmark Corporation (NASDAQGS:TRMK) reported net income of $36.1 million in the fourth quarter of 2023, representing diluted earnings per share

December 5, 2023 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 December 5, 2023 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commissio

November 7, 2023 EX-31.B

Certification by Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Thomas C.

November 7, 2023 EX-32.B

Certification by Principal Financial Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.

November 7, 2023 EX-31.A

Certification by Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Duane A.

November 7, 2023 EX-32.A

Certification by Chief Executive Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.

November 7, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 000-03683 Trustmark Corpora

October 24, 2023 EX-99.2

Investor slide presentation for the period ended September 30, 2023

(1) (1) 17

October 24, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 October 24, 2023 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commissio

October 24, 2023 EX-99.1

Trustmark Corporation Announces Third Quarter 2023 Financial Results Performance Reflects Continued Loan and Deposit Growth, Solid Credit Quality, and Diversified Fee Income

Exhibit 99.1 News Release Trustmark Corporation Announces Third Quarter 2023 Financial Results Performance Reflects Continued Loan and Deposit Growth, Solid Credit Quality, and Diversified Fee Income JACKSON, Miss. – October 24, 2023 – Trustmark Corporation (NASDAQGS: TRMK) reported net income of $34.0 million in the third quarter of 2023, representing diluted earnings per share of $0.56. As previ

September 1, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 August 30, 2023 Date of Report (Date of earliest event reported) TRUSTMARK CORPORAT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 August 30, 2023 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission

August 7, 2023 EX-32.A

Certification by Chief Executive Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.

August 7, 2023 EX-31.B

Certification by Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Thomas C.

August 7, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 000-03683 Trustmark Corporation

August 7, 2023 EX-32.B

Certification by Principal Financial Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.

August 7, 2023 EX-31.A

Certification by Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Duane A.

July 25, 2023 EX-99.2

13 (1)

3 4 5 6 7 8 9 10 11 12 13 (1) 14 15 16 17 18

July 25, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 July 25, 2023 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission F

July 25, 2023 EX-99.1

Trustmark Corporation Announces Second Quarter 2023 Financial Results Loan and Deposit Growth Continues, Credit Quality Remains Strong, Net Interest Income and Noninterest Income Expand

Exhibit 99.1 News Release Trustmark Corporation Announces Second Quarter 2023 Financial Results Loan and Deposit Growth Continues, Credit Quality Remains Strong, Net Interest Income and Noninterest Income Expand JACKSON, Miss. – July 25, 2023 – Trustmark Corporation (NASDAQGS:TRMK) reported net income of $45.0 million in the second quarter of 2023, representing diluted earnings per share of $0.74.

June 28, 2023 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ ANNUAL REPORT PURSUANT TO S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 000-03683 Full title of the plan and the

May 8, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 000-03683 Trustmark Corporation

May 8, 2023 EX-10

Exhibit 2 Company Contribution in Respect of the Year Ending December 31, 2023 to the Trustmark Corporation Deferred Compensation Plan. Filed May 8, 2023, as Exhibit 10-aj to Trustmark’s Form 10-Q Quarterly Report for the quarter ended March 31, 2023, incorporated herein by reference.

Exhibit 10.aj TRUSTMARK CORPORATION DEFERRED COMPENSATION PLAN EXHIBIT 2 COMPANY CONTRIBUTION IN RESPECT OF THE YEAR ENDING DECEMBER 31, 2023 WHEREAS, Trustmark Corporation, a Mississippi corporation (the “Company”), maintains the Trustmark Corporation Deferred Compensation Plan, amended and restated as of December 31, 2007 and further amended as of October 4, 2022 (the “Plan”); WHEREAS, all capit

May 8, 2023 EX-3

Articles of Incorporation of Trustmark, as restated April 25, 2023. Filed May 8, 2023, as Exhibit 3-a to Trustmark’s Form 10-Q Quarterly Report for the quarter ended March 31, 2023, incorporated herein by reference.

Exhibit 3.a RESTATED ARTICLES OF INCORPORATION OF TRUSTMARK CORPORATION FIRST: The name of the corporation is TRUSTMARK CORPORATION (the “Corporation”). SECOND: The period of its duration is perpetual. THIRD: The specific purposes for which the Corporation is organized stated in general terms are: (1) To receive and hold the common stock and other securities of a commercial bank and other financia

April 26, 2023 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 25, 2023 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission

April 25, 2023 EX-99

13 (1)

3 4 5 6 7 8 9 10 11 12 13 (1) 14 15 16 17 18

April 25, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 25, 2023 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission

April 25, 2023 EX-99

Trustmark Corporation Announces First Quarter 2023 Financial Results Loan and Deposit Growth Continues, Credit Quality Remains Strong, Mortgage Banking, Insurance and Wealth Management Revenue Expands

Exhibit 99.1 News Release Trustmark Corporation Announces First Quarter 2023 Financial Results Loan and Deposit Growth Continues, Credit Quality Remains Strong, Mortgage Banking, Insurance and Wealth Management Revenue Expands JACKSON, Miss. – April 25, 2023 – Trustmark Corporation (NASDAQGS:TRMK) reported net income of $50.3 million in the first quarter of 2023, representing diluted earnings per

March 15, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. __)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14

March 15, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. __) Filed by the Registrant ☒ Filed by a Party other than the Registr

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14

March 15, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. __) Filed by the Registrant ☒ Filed by a Party other than the Registr

DEFA14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

February 17, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 February 15, 2023 Date of Report (Date of earliest event reported) TRUSTMARK CORPOR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 February 15, 2023 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commissi

February 17, 2023 EX-3

Amended and Restated Bylaws of Trustmark Corporation as of February 15, 2023. Filed February 17, 2023, as Exhibit 3.1 to Trustmark’s Form 8-K Current Report, incorporated herein by reference.

Exhibit 3.1 BYLAWS OF TRUSTMARK CORPORATION AS AMENDED AND RESTATED AS OF FEBRUARY 15, 2023 1 BYLAWS OF TRUSTMARK CORPORATION (Incorporated under the laws of Mississippi) ARTICLE I OFFICES The principal office shall be in the City of Jackson, County of Hinds, State of Mississippi; and the name of the resident agent for process upon the corporation is Michael A. King, whose mailing address is 248 E

February 17, 2023 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. __)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14

February 16, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 for the fiscal year ended December 31, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number 000-3683 TRUSTMARK CORPORATION (Exact name of Registrant as specified

February 16, 2023 EX-10

Exhibit 1 Company Contribution in Respect of the Year Ending December 31, 2022 to the Trustmark Corporation Deferred Compensation Plan. Filed February 16, 2023, as exhibit 10-ah to Trustmark's Form 10-K Annual Report, incorporated herein by reference.

Exhibit 10.ah TRUSTMARK CORPORATION DEFERRED COMPENSATION PLAN EXHIBIT 1 COMPANY CONTRIBUTION IN RESPECT OF THE YEAR ENDING DECEMBER 31, 2022 WHEREAS, Trustmark Corporation, a Mississippi corporation (the “Company”), maintains the Trustmark Corporation Deferred Compensation Plan, amended and restated as of December 31, 2007 and further amended as of October 4, 2022 (the “Plan”); WHEREAS, all capit

February 16, 2023 EX-10

Form of Fully Executed Settlement Agreement. Filed February 16, 2023, as exhibit 10-ai to Trustmark's Form 10-K Annual Report, incorporated herein by reference.

EXHIBIT 10.ai SETTLEMENT AGREEMENT THIS SETTLEMENT AGREEMENT (the “Agreement”) is made and entered into between and among, on the one hand, (i) Ralph S. Janvey, solely in his capacity as the court-appointed receiver for the Stanford Receivership Estate (the “Receiver”); (ii) the Official Stanford Investors Committee (the “Committee”); (iii) individual plaintiffs Guthrie Abbott, Steven Queyrouze, S

February 16, 2023 EX-21

List of Subsidiaries.

Exhibit 21 LIST OF SUBSIDIARIES The following is a list of all subsidiaries of Trustmark Corporation as of December 31, 2022, and the jurisdiction in which each was organized.

February 15, 2023 SC 13D/A

TRMK / Trustmark Corp / ROBERT M HEARIN SUPPORT FOUNDATION - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 9)* Trustmark Corporation (Name of Issuer) Common Stock, no par value (Title of Class of Securities) 898402-10-2 (CUSIP Number) Matthew L. Holleman, III, Trustee Robert M. Hearin Support Foundation P.O. Box 16505 Jackson, MS 39236-6505 Telephone: (601) 366

February 10, 2023 SC 13G/A

TRMK / Trustmark Corp / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 6 )* Trustmark Corp (Name of Issuer) Common Stock (Title of Class of Securities) 898402102 (CUSIP Number) December 30, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to desi

February 9, 2023 SC 13G/A

TRMK / Trustmark Corp / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv02089-trustmarkcorp.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 11)* Name of issuer: Trustmark Corp. Title of Class of Securities: Common Stock CUSIP Number: 898402102 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate the

January 24, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 January 24, 2023 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commissio

January 24, 2023 EX-99.1

Trustmark Corporation Announces Fourth Quarter and Fiscal Year 2022 Financial Results Record Loan Growth, Solid Credit Quality, Expanded Net Interest Margin

Exhibit 99.1 News Release Trustmark Corporation Announces Fourth Quarter and Fiscal Year 2022 Financial Results Record Loan Growth, Solid Credit Quality, Expanded Net Interest Margin JACKSON, Miss. – January 24, 2023 – Trustmark Corporation (NASDAQGS:TRMK) reported a loss of $34.1 million, or $0.56 per diluted share, in the fourth quarter of 2022. As previously disclosed, Trustmark agreed to a set

January 24, 2023 EX-99.2

4 (1)

Fourth Quarter & Fiscal Year 2022 Financial Results January 24, 2023 Exhibit 99.2 3 4 (1) 5 6 7 8 9 10 11 12 (1) 13 14 15 16 17

January 3, 2023 8-K

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 December 31, 2022 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commissi

December 6, 2022 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 December 6, 2022 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commissio

November 3, 2022 EX-31.B

Certification by Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Thomas C.

November 3, 2022 EX-32.B

Certification by Principal Financial Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.

November 3, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 000-03683 Trustmark Corpora

November 3, 2022 EX-10.AG

Amendment No. 2022-1 to the Trustmark Corporation Deferred Compensation Plan. Filed November 3, 2022, as exhibit 10-ag to Trustmark's Form 10-Q Quarterly Report, incorporated herein by reference.

Exhibit 10.ag AMENDMENT No. 2022 - 1 TO TRUSTMARK CORPORATION DEFERRED COMPENSATION PLAN WHEREAS, Trustmark Corporation, a Mississippi corporation (the ?Company?), maintains the Trustmark Corporation Deferred Compensation Plan, amended and restated as of December 31, 2007 (the ?Plan?); and WHEREAS, all capitalized terms used herein shall have the meanings set forth in the Plan unless otherwise ind

November 3, 2022 EX-31.A

Certification by Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Duane A.

November 3, 2022 EX-32.A

Certification by Chief Executive Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.

October 25, 2022 EX-99.2

12 (1)

Third Quarter 2022 Financial Results October 25, 2022 Exhibit 99.2 3 4 5 6 7 8 9 10 11 12 (1) 13 14 15 16 17

October 25, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 October 25, 2022 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commissio

October 25, 2022 EX-99.1

Trustmark Corporation Announces Third Quarter 2022 Financial Results Performance Reflects Continued Loan Growth, Strong Credit Quality, Asset Sensitive Balance Sheet and Diversified Fee Income

Exhibit 99.1 News Release Trustmark Corporation Announces Third Quarter 2022 Financial Results Performance Reflects Continued Loan Growth, Strong Credit Quality, Asset Sensitive Balance Sheet and Diversified Fee Income JACKSON, Miss. ? October 25, 2022 ? Trustmark Corporation (NASDAQGS: TRMK) reported net income of $42.5 million in the third quarter of 2022, representing diluted earnings per share

August 4, 2022 EX-31.A

Certification by Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Duane A.

August 4, 2022 EX-32.A

Certification by Chief Executive Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.

August 4, 2022 EX-31.B

Certification by Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Thomas C.

August 4, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 000-03683 Trustmark Corporation

August 4, 2022 EX-32.B

Certification by Principal Financial Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.

August 4, 2022 EX-10.AF

First Amendment to the Trustmark Corporation Amended and Restated Stock and Incentive Compensation Plan.

Exhibit 10.af AMENDMENT NO. 1 TO THE TRUSTMARK CORPORATION AMENDED AND RESTATED STOCK AND INCENTIVE COMPENSATION PLAN WHEREAS, Trustmark Corporation (the ?Company?) sponsors the Trustmark Corporation Amended and Restated Stock and Incentive Compensation Plan (the ?Plan?), which was amended and restated effective April 28, 2015. WHEREAS, pursuant to Section 16.1 of the Plan, the Board of Directors

July 26, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 July 26, 2022 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission F

July 26, 2022 EX-99.1

Trustmark Corporation Announces Second Quarter 2022 Financial Results Performance Reflects Strong Loan Growth, Solid Credit Quality and Expanding Net Interest Margin

Exhibit 99.1 News Release Trustmark Corporation Announces Second Quarter 2022 Financial Results Performance Reflects Strong Loan Growth, Solid Credit Quality and Expanding Net Interest Margin JACKSON, Miss. ? July 26, 2022 ? Trustmark Corporation (NASDAQGS: TRMK) reported net income of $34.3 million in the second quarter of 2022, representing diluted earnings per share of $0.56. Trustmark?s Board

July 26, 2022 EX-99.2

Forward–Looking Statements Certain statements contained in this document constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by words such as “m

Second Quarter 2022 Financial Results July 26, 2022 Exhibit 99.2 Forward?Looking Statements Certain statements contained in this document constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by words such as ?may,? ?hope,? ?will,? ?should,? ?expect,? ?plan,? ?anticipate,? ?intend,? ?believe,? ?

June 10, 2022 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

11-K 1 brhc1003855611k.htm 11-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ☐ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 000-03683

May 5, 2022 EX-31.A

Certification by Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Duane A.

May 5, 2022 EX-32.B

Certification by Principal Financial Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.

May 5, 2022 EX-31.B

Certification by Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Thomas C.

May 5, 2022 EX-32.A

Certification by Chief Executive Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.

May 5, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 000-03683 Trustmark Corporation

April 27, 2022 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 26, 2022 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission

April 26, 2022 EX-99.2

Forward–Looking Statements 2 Certain statements contained in this document constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by words such as

First Quarter 2022 Financial Results April 26, 2022 Exhibit 99.2 Forward?Looking Statements 2 Certain statements contained in this document constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by words such as ?may,? ?hope,? ?will,? ?should,? ?expect,? ?plan,? ?anticipate,? ?intend,? ?believe,?

April 26, 2022 EX-99.1

Trustmark Corporation Announces First Quarter 2022 Financial Results Loan and Deposit Growth Continues, Credit Quality Remains Strong, Insurance and Wealth Management Revenue Expands

Exhibit 99.1 News Release Trustmark Corporation Announces First Quarter 2022 Financial Results Loan and Deposit Growth Continues, Credit Quality Remains Strong, Insurance and Wealth Management Revenue Expands JACKSON, Miss. ? April 26, 2022 ? Trustmark Corporation (NASDAQGS:TRMK) reported net income of $29.2 million in the first quarter of 2022, representing diluted earnings per share of $0.47. Tr

April 26, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 26, 2022 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission

March 15, 2022 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 March 15, 2022 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission

March 14, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registran

DEFA14A 1 d308392ddefa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as

March 14, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. __) Filed by the Registrant ☒ Filed by a Party other than the Registr

DEF 14A 1 d308392ddef14a.htm DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Com

March 14, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registran

DEFA14A 1 d308392ddefa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as

February 17, 2022 EX-31.B

Certification by Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Thomas C.

February 17, 2022 EX-21

List of Subsidiaries.

Exhibit 21 LIST OF SUBSIDIARIES The following is a list of all subsidiaries of Trustmark Corporation as of December 31, 2021, and the jurisdiction in which each was organized.

February 17, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 for the fiscal year ended December 31, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number 000-3683 TRUSTMARK CORPORATION (Exact name of Registrant as specified

February 17, 2022 EX-31.A

Certification by Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Duane A.

February 17, 2022 EX-32.A

Certification by Chief Executive Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.

February 17, 2022 EX-32.B

Certification by Principal Financial Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.

February 11, 2022 SC 13D/A

TRMK / Trustmark Corp / ROBERT M HEARIN SUPPORT FOUNDATION - SC13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 8)* Trustmark Corporation (Name of Issuer) Common Stock, no par value (Title of Class of Securities) 898402-10-2 (CUSIP Number) Matthew L. Holleman, III, Trustee Robert M. Hearin Support Foundation P.O. Box 16505 Jackson, MS 39236-6505 Telephone: (601) 366

February 10, 2022 SC 13G/A

TRMK / Trustmark Corp / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)* Name of issuer: Trustmark Corp. Title of Class of Securities: Common Stock CUSIP Number: 898402102 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ??Ru

February 8, 2022 SC 13G/A

TRMK / Trustmark Corp / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5 )* Trustmark Corp (Name of Issuer) Common Stock (Title of Class of Securities) 898402102 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedul

January 25, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 January 25, 2022 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commissio

January 25, 2022 EX-99.2

Forward–Looking Statements 2 Certain statements contained in this document constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by words such as

Fourth Quarter & Fiscal Year 2021 Financial Results January 25, 2022 Exhibit 99.2 Forward?Looking Statements 2 Certain statements contained in this document constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by words such as ?may,? ?hope,? ?will,? ?should,? ?expect,? ?plan,? ?anticipate,? ?in

January 25, 2022 EX-99.1

Trustmark Corporation Announces Fourth Quarter and Fiscal Year 2021 Financial Results Solid Balance Sheet Growth, Record Results in Insurance and Wealth Management

Exhibit 99.1 News Release Trustmark Corporation Announces Fourth Quarter and Fiscal Year 2021 Financial Results Solid Balance Sheet Growth, Record Results in Insurance and Wealth Management JACKSON, Miss. ? January 25, 2022 ? Trustmark Corporation (NASDAQGS:TRMK) reported net income of $26.2 million in the fourth quarter of 2021, representing diluted earnings per share of $0.42. For the full year,

December 7, 2021 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 December 7, 2021 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commissio

November 4, 2021 EX-31.A

Certification by Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Duane A.

November 4, 2021 EX-32.B

Certification by Principal Financial Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.

November 4, 2021 EX-32.A

Certification by Chief Executive Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.

November 4, 2021 EX-31.B

Certification by Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Thomas C.

November 4, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 000-03683 Trustmark Corpora

October 26, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 October 26, 2021 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commissio

October 26, 2021 EX-99.1

Trustmark Corporation Announces Third Quarter 2021 Financial Results Performance Reflects Continued Balance Sheet Growth, Strong Credit Quality and Disciplined Expense Management

Exhibit 99.1 News Release Trustmark Corporation Announces Third Quarter 2021 Financial Results Performance Reflects Continued Balance Sheet Growth, Strong Credit Quality and Disciplined Expense Management JACKSON, Miss. ? October 26, 2021 ? Trustmark Corporation (NASDAQGS: TRMK) reported net income of $21.2 million in the third quarter of 2021, representing diluted earnings per share of $0.34. Thi

October 26, 2021 EX-99.2

Certain statements contained in this document constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by words such as “may,” “hope,” “will,” “shoul

Third Quarter 2021 Financial Results October 26, 2021 Exhibit 99.2 Certain statements contained in this document constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by words such as ?may,? ?hope,? ?will,? ?should,? ?expect,? ?plan,? ?anticipate,? ?intend,? ?believe,? ?estimate,? ?predict,? ?pr

October 22, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 October 22, 2021 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commissio

October 22, 2021 EX-99.1

Trustmark National Bank Announces Settlement of Claims Made by Federal Regulators

Exhibit 99.1 Press Release Trustmark National Bank Announces Settlement of Claims Made by Federal Regulators JACKSON, Miss ? October 22, 2021 - Trustmark National Bank (?Trustmark? or the ?Company?), a wholly-owned subsidiary of Trustmark Corporation (NASDAQGS:TRMK), today announced it has entered into settlements with the U.S. Department of Justice (?DOJ?), the Office of the Comptroller of the Cu

September 10, 2021 SC 13G/A

TRMK / Trustmark Corp / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: Trustmark Corp. Title of Class of Securities: Common Stock CUSIP Number: 898402102 Date of Event Which Requires Filing of this Statement: August 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ??Rule

August 5, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 000-03683 Trustmark Corporation

August 5, 2021 EX-32.A

Certification by Chief Executive Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.

August 5, 2021 EX-32.B

Certification by Principal Financial Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.

August 5, 2021 EX-31.A

Certification by Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Duane A.

August 5, 2021 EX-31.B

Certification by Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Thomas C.

July 27, 2021 EX-99.2

Certain statements contained in this document constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by words such as “may,” “hope,” “will,” “shoul

Second Quarter 2021 Financial Results Exhibit 99.2 Certain statements contained in this document constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by words such as ?may,? ?hope,? ?will,? ?should,? ?expect,? ?plan,? ?anticipate,? ?intend,? ?believe,? ?estimate,? ?predict,? ?project,? ?potenti

July 27, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 July 27, 2021 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission F

July 27, 2021 EX-99.1

Trustmark Corporation Announces Second Quarter 2021 Financial Results Performance Reflects Continued Balance Sheet Growth, Strong Credit Quality and Disciplined Expense Management

Exhibit 99.1 News Release Trustmark Corporation Announces Second Quarter 2021 Financial Results Performance Reflects Continued Balance Sheet Growth, Strong Credit Quality and Disciplined Expense Management JACKSON, Miss. ? July 27, 2021 ? Trustmark Corporation (NASDAQGS: TRMK) reported net income of $48.0 million in the second quarter of 2021, representing diluted earnings per share of $0.76. This

June 30, 2021 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 June 30, 2021 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission F

June 21, 2021 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR ? ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 000-03683 Full title of the plan and the

May 6, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 000-03683 Trustmark Corporation

May 6, 2021 EX-31.B

Certification by Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Thomas C.

May 6, 2021 EX-32.B

Certification by Principal Financial Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.

May 6, 2021 EX-32.A

Certification by Chief Executive Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.

May 6, 2021 EX-31.A

Certification by Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Duane A.

April 28, 2021 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 27, 2021 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission

April 27, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 27, 2021 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commission

April 27, 2021 EX-99.1

Trustmark Corporation Announces First Quarter 2021 Financial Results Performance Reflects Continued Balance Sheet Growth and Strong Credit Quality

Exhibit 99.1 News Release Trustmark Corporation Announces First Quarter 2021 Financial Results Performance Reflects Continued Balance Sheet Growth and Strong Credit Quality JACKSON, Miss. ? April 27, 2021 ? Trustmark Corporation (Nasdaq:TRMK) reported net income of $52.0 million in the first quarter of 2021, representing diluted earnings per share of $0.82. Net income in the first quarter produced

April 27, 2021 EX-99.2

Certain statements contained in this document constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by words such as “may,” “hope,” “will,” “shoul

First Quarter 2021 Financial Results Exhibit 99.2 Certain statements contained in this document constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by words such as ?may,? ?hope,? ?will,? ?should,? ?expect,? ?plan,? ?anticipate,? ?intend,? ?believe,? ?estimate,? ?predict,? ?project,? ?potentia

March 15, 2021 DEFA14A

- DEFA14A

DEFA14A 1 d124438ddefa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as

March 15, 2021 DEFA14A

- DEFA14A

DEFA14A 1 d124438ddefa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as

March 15, 2021 DEF 14A

- DEF 14A

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14

February 18, 2021 EX-31.B

Certification by Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 31-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Louis E.

February 18, 2021 EX-21

List of Subsidiaries

Exhibit 21 LIST OF SUBSIDIARIES The following is a list of all subsidiaries of Trustmark Corporation as of December 31, 2020, and the jurisdiction in which each was organized.

February 18, 2021 EX-32.B

Certification by Principal Financial Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 32-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.

February 18, 2021 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 for the fiscal year ended December 31, 2020 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number 000-3683 TRUSTMARK CORPORATION (Exact name of Registrant as specified

February 18, 2021 EX-31.A

Certification by Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 31-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Duane A.

February 18, 2021 EX-32.A

Certification by Chief Executive Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 32-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.

February 16, 2021 SC 13G/A

SCHEDULE 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4 )* Trustmark Corp (Name of Issuer) Common Stock (Title of Class of Securities) 898402102 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedul

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: Trustmark Corp. Title of Class of Securities: Common Stock CUSIP Number: 898402102 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rul

January 26, 2021 EX-99.1

Trustmark Corporation Announces Fourth Quarter and Fiscal Year 2020 Financial Results Record earnings in 2020 reflect value of diversified financial services businesses Solid balance sheet, credit quality and capital base provide strength and stabili

Exhibit 99.1 News Release Trustmark Corporation Announces Fourth Quarter and Fiscal Year 2020 Financial Results Record earnings in 2020 reflect value of diversified financial services businesses Solid balance sheet, credit quality and capital base provide strength and stability JACKSON, Miss. – January 26, 2021 – Trustmark Corporation (NASDAQ:TRMK) reported net income of $51.2 million in the fourt

January 26, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 January 26, 2021 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commissio

January 26, 2021 EX-99.2

Certain statements contained in this document constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by words such as “may,” “hope,” “will,” “shoul

Fourth Quarter & Fiscal Year 2020 Financial Results January 26, 2021 Exhibit 99.2 Certain statements contained in this document constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by words such as “may,” “hope,” “will,” “should,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,”

November 23, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 November 18, 2020 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commissi

November 23, 2020 EX-4.1

Form of Subordinated Indenture, by and between Trustmark Corporation and Wilmington Trust, National Association, as trustee.

EX-4.1 Exhibit 4.1 TRUSTMARK CORPORATION, AS ISSUER AND WILMINGTON TRUST, NATIONAL ASSOCIATION, AS TRUSTEE SUBORDINATED INDENTURE DATED AS OF November 25, 2020 SUBORDINATED DEBT SECURITIES CROSS-REFERENCE TABLE Reconciliation and tie between the Trust Indenture Act of 1939, as amended (the “Trust Indenture Act”), and the Indenture dated as of November 25, 2020. SECTION OF TRUST INDENTURE ACT SECTI

November 23, 2020 EX-1.1

Underwriting Agreement, dated as of November 18, 2020, by and among Trustmark Corporation, Morgan Stanley & Co. LLC and Piper Sandler & Co.

EX-1.1 Exhibit 1.1 TRUSTMARK CORPORATION 3.625% FIXED-TO-FLOATING RATE SUBORDINATED NOTES DUE 2030 UNDERWRITING AGREEMENT November 18, 2020 November 18, 2020 To the Representatives named in Schedule I hereto for the Underwriters named in Schedule II hereto Ladies and Gentlemen: Trustmark Corporation, a Mississippi corporation (the “Company”), proposes to issue and sell to the several underwriters

November 23, 2020 EX-4.2

Form of First Supplemental Indenture, by and between Trustmark Corporation and Wilmington Trust, National Association, as trustee.

EX-4.2 Exhibit 4.2 TRUSTMARK CORPORATION, as Issuer and WILMINGTON TRUST, NATIONAL ASSOCIATION, as Trustee FIRST SUPPLEMENTAL INDENTURE Dated as of November 25, 2020 to SUBORDINATED INDENTURE Dated as of November 25, 2020 3.625% Fixed-to-Floating Rate Subordinated Notes Due 2030 TABLE OF CONTENTS Article 1 DEFINITIONS 1 Section 1.01. Relation to Base Indenture 1 Section 1.02. Definition of Terms 2

November 19, 2020 424B5

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered Proposed Maximum Offering Price per Unit Proposed Maximum Aggregate Offering Price Amount of Registration Fee (1) 3.625% Fixed-to-Floating Rate

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-250158 CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered Proposed Maximum Offering Price per Unit Proposed Maximum Aggregate Offering Price Amount of Registration Fee (1) 3.625% Fixed-to-Floating Rate Subordinated Notes due 2030 $125,000,000 100% $125,000,000 $13,637.50

November 18, 2020 FWP

Issuer Free Writing Prospectus Filed pursuant to Rule 433 Dated November 18, 2020 Registration No. 333-250158 Fixed Income Investor Presentation November 18, 2020Issuer Free Writing Prospectus Filed pursuant to Rule 433 Dated November 18, 2020 Regist

FWP Issuer Free Writing Prospectus Filed pursuant to Rule 433 Dated November 18, 2020 Registration No.

November 18, 2020 424B5

Trustmark Corporation % Fixed-to-Floating Rate Subordinated Notes due 2030

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-250158 The information in this preliminary prospectus supplement is not complete and may be changed. A registration statement relating to these securities is effective under the Securities Act of 1933, as amended. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securi

November 18, 2020 EX-4.6

Form of Subordinated Debt Indenture

EX-4.6 Exhibit 4.6 TRUSTMARK CORPORATION, AS ISSUER AND WILMINGTON TRUST, NATIONAL ASSOCIATION, AS TRUSTEE SUBORDINATED INDENTURE DATED AS OF [ ], 20[ ] SUBORDINATED DEBT SECURITIES CROSS-REFERENCE TABLE Reconciliation and tie between the Trust Indenture Act of 1939, as amended (the “Trust Indenture Act”), and the Indenture dated as of [ ], 20[ ]. SECTION OF TRUST INDENTURE ACT SECTION OF INDENTUR

November 18, 2020 S-3ASR

- S-3ASR

S-3ASR Table of Contents As filed with the Securities and Exchange Commission on November 18, 2020 Registration No.

November 18, 2020 EX-25.2

Statement of Eligibility of Trustee on Form T-1 for the Subordinated Debt Indenture

EX-25.2 8 d51418dex252.htm EX-25.2 Exhibit 25.2 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 ☐ Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) WILMINGTON TRUST, NATIONAL ASSOCIATION (Exact name of trustee as specified in its charter) 16-1486454 (I.R.S. employer identification no.) 1100 North Market Street Wilmington, D

November 18, 2020 EX-4.5

Form of Senior Debt Indenture

EX-4.5 Exhibit 4.5 TRUSTMARK CORPORATION, AS ISSUER AND WILMINGTON TRUST, NATIONAL ASSOCIATION, AS TRUSTEE SENIOR INDENTURE DATED AS OF [ ], 20[ ] SENIOR DEBT SECURITIES CROSS-REFERENCE TABLE Reconciliation and tie between the Trust Indenture Act of 1939, as amended (the “Trust Indenture Act”), and the Indenture dated as of [ ], 20[ ]. SECTION OF TRUST INDENTURE ACT SECTION OF INDENTURE 310(a)(1)

November 18, 2020 EX-25.1

Statement of Eligibility of Trustee on Form T-1 for the Senior Debt Indenture

EX-25.1 7 d51418dex251.htm EX-25.1 Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 ☐ Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) WILMINGTON TRUST, NATIONAL ASSOCIATION (Exact name of trustee as specified in its charter) 16-1486454 (I.R.S. employer identification no.) 1100 North Market Street Wilmington, D

November 18, 2020 FWP

Trustmark Corporation 3.625% Fixed-to-Floating Rate Subordinated Notes due 2030 Term Sheet Issuer: Trustmark Corporation (the “Company” or “Issuer”) Security: 3.625% Fixed-to-Floating Rate Subordinated Notes due 2030 (the “Notes”) Aggregate Principal

Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Dated November 18, 2020 Registration Statement No.

November 16, 2020 EX-99.1

Certain statements contained in this document constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by words such as “may,” “hope,” “will,” “shoul

EX-99.1 Fixed Income Investor Presentation November 16, 2020 Exhibit 99.1 Certain statements contained in this document constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by words such as “may,” “hope,” “will,” “should,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,” “predic

November 16, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 November 16, 2020 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commissi

November 5, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 000-03683 Trustmark Corpora

November 5, 2020 EX-32.B

Certification by Principal Financial Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.

November 5, 2020 EX-32.A

Certification by Chief Executive Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 32-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.

November 5, 2020 EX-31.B

Certification by Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Louis E.

November 5, 2020 EX-31.A

Certification by Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-a TRUSTMARK CORPORATION CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Gerard R.

October 27, 2020 EX-10.1

Employment Agreement between Trustmark Corporation and Gerard R. Host dated October 27, 2020. Filed October 27, 2020 as Exhibit 10.1 to Trustmark’s Form 8-K Current Report, incorporated herein by reference.

Exhibit 10.1 EMPLOYMENT AGREEMENT This Employment Agreement (“Agreement”) is entered into by Trustmark Corporation, a Mississippi corporation (the “Company”), and Gerard R. Host (the “Executive”) on October 27, 2020, and is effective as of January 1, 2021. WHEREAS, the Board of Directors of the Company has elected the Executive to become the Company’s Executive Chairman effective as of January 1,

October 27, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Results of Operations and Financial Condition - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 October 27, 2020 Date of Report (Date of earliest event reported) TRUSTMARK CORPORATION (Exact name of registrant as specified in its charter) Mississippi 000-03683 64-0471500 (State or other jurisdiction of incorporation) (Commissio

October 27, 2020 EX-99.2

Certain statements contained in this document constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by words such as “may,” “hope,” “will,” “shoul

Third Quarter 2020 Financial Results Exhibit 99.2 Certain statements contained in this document constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by words such as “may,” “hope,” “will,” “should,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,” “predict,” “project,” “potentia

October 27, 2020 EX-10.2

Employment Agreement between Trustmark Corporation and Duane A. Dewey dated October 27, 2020. Filed October 27, 2020 as Exhibit 10.2 to Trustmark’s Form 8-K Current Report, incorporated herein by reference.

Exhibit 10.2 EMPLOYMENT AGREEMENT This Employment Agreement (“Agreement”) is entered into by Trustmark Corporation, a Mississippi corporation (the “Company”), and Duane A. Dewey (the “Executive”) on October 27, 2020, and is effective as of January 1, 2021. WHEREAS, the Board of Directors of the Company has elected the Executive to continue to serve as the Company’s President and to become the Comp

October 27, 2020 EX-99.1

Trustmark Corporation Announces Third Quarter 2020 Financial Results Performance reflects value of diversified financial services businesses

Exhibit 99.1 News Release Trustmark Corporation Announces Third Quarter 2020 Financial Results Performance reflects value of diversified financial services businesses JACKSON, Miss. – October 27, 2020 – Trustmark Corporation (Nasdaq:TRMK) reported net income of $54.4 million in the third quarter of 2020, representing diluted earnings per share of $0.86. This level of earnings resulted in a return

October 27, 2020 EX-3.1

Amended and Restated Bylaws of Trustmark Corporation, as of October 27, 2020. Filed on October 27, 2020, as Exhibit 3.1 to Trustmark’s Form 8-K Current Report, incorporated herein by reference.

Exhibit 3.1 BYLAWS OF TRUSTMARK CORPORATION AS AMENDED AND RESTATED AS OF OCTOBER 27, 2020 BYLAWS OF TRUSTMARK CORPORATION (Incorporated under the laws of Mississippi) ARTICLE I OFFICES The principal office shall be in the City of Jackson, County of Hinds, State of Mississippi; and the name of the resident agent for process upon the corporation is Granville Tate, Jr., whose mailing address is 248

October 27, 2020 EX-99.3

Trustmark Announces Succession Plans Gerard R. Host to become Executive Chairman Duane A. Dewey to succeed Host as Chief Executive Officer Granville Tate, Jr. to assume additional duties as Chief Administrative Officer Thomas C. Owens to succeed Loui

Exhibit 99.3 News Release Trustmark Announces Succession Plans Gerard R. Host to become Executive Chairman Duane A. Dewey to succeed Host as Chief Executive Officer Granville Tate, Jr. to assume additional duties as Chief Administrative Officer Thomas C. Owens to succeed Louis E. Greer as Chief Financial Officer Jackson, Miss., October 27, 2020 – BusinessWire – The Boards of Directors of Trustmark

August 6, 2020 EX-31.B

Certification by Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

Exhibit 31-b TRUSTMARK CORPORATION CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Louis E.

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