State Street reports 2.97M shares (5.1%) in Trustmark

State Street Corporation reported beneficial ownership of 2,974,965 shares of Trustmark Corp common stock, representing 5.1% of the class as of 03/31/2026.

Rhea-AI Filing Summary

State Street Corporation reported beneficial ownership of 2,974,965 shares of Trustmark Corp common stock, representing 5.1% of the class as of 03/31/2026. The filing shows shared voting power of 422,212 shares and shared dispositive power for the full 2,974,965‑share position. The Schedule 13G lists multiple State Street affiliate investment adviser entities as holders; the signature block is dated 05/12/2026.

Insights

Institutional Ownership Analyst

Large passive stake disclosed by State Street affiliates.

State Street Corporation reports holding 2,974,965 shares of Trustmark Corp, equal to 5.1% of the class as of 03/31/2026. The position is reported with shared dispositive power and a smaller shared voting power.

The filing identifies multiple State Street investment adviser entities as the reporting holders, indicating ownership on behalf of managed funds or accounts. Cash‑flow treatment and any blocking or voting arrangements are not described in the excerpt; subsequent filings would show transactional changes.

Governance & Proxy Specialist

Cross‑entity reporting may affect voting coordination.

The Schedule 13G lists SSGA Funds Management and other State Street adviser entities as affiliated holders, which commonly signals passive investment management. The filing attributes shared voting authority for 422,212 shares, separate from dispositive control for the full position.

Because this is a 13G disclosure, it characterizes the stake as passive under Schedule 13G rules; any change toward activist intent would typically trigger a different filing. Review future Section 13 filings for material shifts in voting or disposition rights.

Key Figures

Beneficial ownership: 2,974,965 shares Percent of class: 5.1% Shared voting power: 422,212 shares +3 more

6 metrics

Beneficial ownership 2,974,965 shares as of 03/31/2026

Percent of class 5.1% ownership percentage

Shared voting power 422,212 shares reported shared voting power

Shared dispositive power 2,974,965 shares reported shared dispositive power

CUSIP 898402102 Trustmark Corp common stock CUSIP

Signature date 05/12/2026 filing signature date

Key Terms

Schedule 13G, shared dispositive power, investment adviser (IA)

3 terms

Schedule 13G regulatory

"Item 1. (a) Name of issuer: TRUSTMARK CORP"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

shared dispositive power financial

"Item 4. (c)(iv) Shared power to dispose or to direct the disposition of: 2,974,965"

investment adviser (IA) regulatory

"SSGA FUNDS MANAGEMENT, INC. (IA); STATE STREET GLOBAL ADVISORS EUROPE LIMITED (IA)"

An investment adviser (IA) is a person or firm that provides personalized guidance on buying, selling, or holding investments and often manages client portfolios for a fee. Investors should care because an IA has a legal duty to act in the client's best interest—think of them as a navigator who plans and steers your financial journey—so their advice, fee structure and potential conflicts can directly affect returns and financial risk.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stake does State Street report in TRUSTMARK CORP (TRMK)?

State Street reports beneficial ownership of 2,974,965 shares, representing 5.1% of Trustmark Corp common stock as of 03/31/2026. The filing shows shared voting power of 422,212 and shared dispositive power for the full position.

Which State Street entities are named on the Schedule 13G for TRMK?

The filing lists State Street adviser affiliates including SSGA Funds Management, Inc., State Street Global Advisors Europe Limited, and related State Street Global Advisors entities as the reporting investment adviser holders for the disclosed position.

Does this Schedule 13G indicate activist intent for TRMK?

No; Schedule 13G filings generally report passive investment positions. This filing characterizes the holding as passive under 13G rules; it does not assert activist intent or plans to influence Trustmark Corp corporate actions.

What voting and disposition powers are reported by State Street for TRMK?

State Street reports 0 shares of sole voting power, 422,212 shares of shared voting power, 0 sole dispositive power, and 2,974,965 shares of shared dispositive power as stated in the filing.

What dates are relevant in the Schedule 13G for TRMK?

The beneficial ownership is reported as of 03/31/2026, and the filing is signed with a dated signature of 05/12/2026 by a State Street officer attesting to the disclosure.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/12/2026 - 12:09 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

TRUSTMARK CORP

(Name of Issuer)

COMMON STOCK

(Title of Class of Securities)

898402102

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 898402102

1

Names of Reporting Persons

STATE STREET CORPORATION

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

MASSACHUSETTS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 422,212.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,974,965.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,974,965.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.1 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: TRUSTMARK CORP
(b)	Address of issuer's principal executive offices: 248 EAST CAPITOL STREET, JACKSON, MISSISSIPPI, 39201
Item 2.
(a)	Name of person filing: STATE STREET CORPORATION;
(b)	Address or principal business office or, if none, residence: ONE CONGRESS STREET, SUITE 1, BOSTON MA 02114, UNITED STATES
(c)	Citizenship: MA
(d)	Title of class of securities: COMMON STOCK
(e)	CUSIP Number(s): 898402102
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 2974965.00
(b)	Percent of class: 5.1 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 422,212
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 2,974,965
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. NOT APPLICABLE
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. SSGA FUNDS MANAGEMENT, INC. (IA);STATE STREET GLOBAL ADVISORS EUROPE LIMITED (IA);STATE STREET GLOBAL ADVISORS LIMITED (IA);STATE STREET GLOBAL ADVISORS TRUST COMPANY (IA);STATE STREET GLOBAL ADVISORS, AUSTRALIA, LIMITED (IA);STATE STREET GLOBAL ADVISORS, LTD. (IA);
Item 8.	Identification and Classification of Members of the Group.
	If a group has filed this schedule pursuant to §240.13d-1(b)(1)(ii)(K), so indicate under Item 3(k) and attach an exhibit stating the identity and Item 3 classification of each member of the group. If a group has filed this schedule pursuant to §240.13d-1(c) or §240.13d-1(d), attach an exhibit stating the identity of each member of the group. NOT APPLICABLE
Item 9.	Notice of Dissolution of Group.
	Notice of dissolution of a group may be furnished as an exhibit stating the date of the dissolution and that all further filings with respect to transactions in the security reported on will be filed, if required, by members of the group, in their individual capacity. See Item 5. NOT APPLICABLE

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

STATE STREET CORPORATION

Signature:	ELIZABETH SCHAEFER
Name/Title:	SENIOR VICE PRESIDENT, CHIEF ACCOUNTING OFFICER
Date:	05/12/2026