Trustmark officer reports 14,826 direct TRMK shares

Q: How many TRMK shares does Frederick Joseph Rein Jr. own directly?

Frederick Joseph Rein Jr. reports direct ownership of 14,826 shares of TRUSTMARK CORP common stock following the reported holdings as of the Form 3 date.

Q: How many TRMK shares are reported in the company-sponsored 401(k) plan?

The filing reports 4,798 shares of TRUSTMARK CORP common stock held indirectly through a company-sponsored 401(k) plan, based on information provided by the plan administrator as of June 30, 2026.

Q: How many TRMK shares are attributed to Frederick Joseph Rein Jr.’s spouse?

The Form 3 attributes 500 shares of TRUSTMARK CORP common stock to indirect ownership “By Spouse,” in addition to his direct and 401(k) holdings.

Q: Does this TRMK Form 3 show any recent insider buying or selling?

No. The Form 3 lists holdings only for Frederick Joseph Rein Jr. and does not report any specific purchase or sale transactions or prices.

Q: What is Frederick Joseph Rein Jr.’s role at TRUSTMARK CORP (TRMK)?

Frederick Joseph Rein Jr. is reported as an officer of TRUSTMARK CORP with the title Assistant Secretary, and this Form 3 records his current beneficial ownership in the company’s common stock.

In its Form 3, Trustmark reports only current ownership—14,826 shares held directly and 4,798 via its 401(k)—with no new trades listed.

Filing Impact

(Moderate)

Filing Sentiment

(Neutral)How Sentiment works

Sentiment and the balance of points

Rhea-AI Sentiment reads the wording of the document, how positive or negative its language is on a 1 to 5 scale. The balance of points shown with the takes weighs what the document actually discloses, so the two can disagree, for example when a trial that missed its main goal is described in upbeat language.

How Sentiment works How the balance works

Form Type

Rhea-AI Filing Summary

TRUSTMARK CORP (TRMK) reported the initial equity holdings of officer Frederick Joseph Rein Jr., Assistant Secretary. He holds 14,826 shares of common stock directly, 4,798 shares indirectly through a company-sponsored 401(k) plan based on information dated June 30, 2026, and 500 shares indirectly through his spouse. The filing lists holdings only and does not report any new purchases or sales.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider Rein Frederick Joseph Jr.

Role Assistant Secretary

Type	Security	Shares	Price	Value
holding	Common Stock	--	--	--
holding	Common Stock ^F1	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 14,826 shares (Direct); Common Stock — 4,798 shares (Indirect, By Company Sponsored 401(k)); Common Stock — 500 shares (Indirect, By Spouse)

Footnotes (1)

F1. Information in this report is based on information provided by the plan administrator dated as of June 30, 2026.

Key Figures

Direct common stock holdings: 14,826 shares Indirect 401(k) holdings: 4,798 shares Indirect spouse holdings: 500 shares

3 metrics

Direct common stock holdings 14,826 shares Direct TRMK common stock ownership following holdings reported on Form 3 dated 2026-08-21

Indirect 401(k) holdings 4,798 shares TRMK common stock held indirectly via company-sponsored 401(k), based on plan administrator information as of June 30, 2026

Indirect spouse holdings 500 shares TRMK common stock held indirectly, described as By Spouse, following holdings reported on Form 3

Key Terms

Form 3, beneficial ownership, direct or indirect ownership, 401(k)

4 terms

Form 3 regulatory

"Initial statement of beneficial ownership of securities on Form 3"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

beneficial ownership financial

"Initial statement of beneficial ownership of securities on Form 3"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

direct or indirect ownership financial

"Shares are reported as direct (D) and indirect (I) ownership entries"

401(k) financial

"Nature of ownership is described as By Company Sponsored 401(k)"

A 401(k) is a type of retirement savings plan offered by employers that allows workers to set aside a portion of their paycheck before taxes are taken out. The money saved in a 401(k) can grow over time through investments, helping individuals build funds for their future retirement. It matters to investors because it provides a tax-advantaged way to save and invest for long-term financial security.

FAQ

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

What does the Form 3 filing disclose for TRUSTMARK CORP (TRMK)?

It discloses the initial reported holdings of Assistant Secretary Frederick Joseph Rein Jr.: 14,826 shares of TRMK common stock held directly, 4,798 shares held indirectly via a company-sponsored 401(k) plan, and 500 shares held indirectly by his spouse.

How many TRMK shares does Frederick Joseph Rein Jr. own directly?

Frederick Joseph Rein Jr. reports direct ownership of 14,826 shares of TRUSTMARK CORP common stock following the reported holdings as of the Form 3 date.

How many TRMK shares are reported in the company-sponsored 401(k) plan?

The filing reports 4,798 shares of TRUSTMARK CORP common stock held indirectly through a company-sponsored 401(k) plan, based on information provided by the plan administrator as of June 30, 2026.

How many TRMK shares are attributed to Frederick Joseph Rein Jr.’s spouse?

The Form 3 attributes 500 shares of TRUSTMARK CORP common stock to indirect ownership “By Spouse,” in addition to his direct and 401(k) holdings.

Does this TRMK Form 3 show any recent insider buying or selling?

No. The Form 3 lists holdings only for Frederick Joseph Rein Jr. and does not report any specific purchase or sale transactions or prices.

What is Frederick Joseph Rein Jr.’s role at TRUSTMARK CORP (TRMK)?

Frederick Joseph Rein Jr. is reported as an officer of TRUSTMARK CORP with the title Assistant Secretary, and this Form 3 records his current beneficial ownership in the company’s common stock.

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

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Available on EDGAR 09/01/2026 - 05:53 PM EDT Accepted by SEC EDGAR 09/01/2026 - 05:52 PM EDT

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Rein Frederick Joseph Jr.

(Last)

(First)

(Middle)

248 E. CAPITOL ST.

(Street)

JACKSON

MISSISSIPPI

39201

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
08/21/2026

3. Issuer Name and Ticker or Trading Symbol
TRUSTMARK CORP [ TRMK ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Assistant Secretary

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	14,826	D
Common Stock	4,798	I	By Company Sponsored 401(k)⁽¹⁾
Common Stock	500	I	By Spouse

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)

Explanation of Responses:

1. Information in this report is based on information provided by the plan administrator dated as of June 30, 2026.

	Frederick Joseph Rein, Jr., by Granville Tate, Jr., POA	09/01/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)

Source: View Original Filing on SEC EDGAR