Prosperity Bancshares EVP reports share holdings

Prosperity Bancshares Inc. executive Cullen D. Zalman, EVP Banking/Corporate, reported his initial beneficial ownership of the company’s common stock.

Rhea-AI Filing Summary

Prosperity Bancshares Inc. executive Cullen D. Zalman, EVP Banking/Corporate, reported his initial beneficial ownership of the company’s common stock. He holds 8,000 shares directly and 2,366 shares indirectly through a 401(k) plan as of July 21, 2026, with entries listing holdings rather than specific purchases or sales.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Zalman Cullen D.

Role EVP Banking/Corporate

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

Holdings After Transaction: Common Stock — 8,000 shares (Direct); Common Stock — 2,366 shares (Indirect, Through 401(k) plan)

Key Figures

Direct common shares reported: 8,000 shares Indirect common shares reported: 2,366 shares Holding entries: 2

3 metrics

Direct common shares reported 8,000 shares Direct holdings as of July 21, 2026

Indirect common shares reported 2,366 shares Held through 401(k) plan as of July 21, 2026

Holding entries 2 Number of common stock holding lines reported

Key Terms

beneficial ownership, indirect ownership, 401(k) plan, Form 3

4 terms

beneficial ownership regulatory

"reported his initial beneficial ownership of the company’s common stock"

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.

indirect ownership financial

"shares indirectly through a 401(k) plan"

401(k) plan financial

"2,366 shares indirectly through a 401(k) plan"

A 401(k) plan is a workplace retirement account that lets employees set aside part of their pay into a tax-advantaged savings pot, often with employers adding matching contributions — like a workplace piggy bank for future income. It matters to investors because the amount people save and how employers fund these plans influence consumer spending, corporate payroll costs and the flow of money into financial markets, which can affect stock prices and company valuations.

Form 3 regulatory

"initial statement of beneficial ownership 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.

FAQ

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

What did Prosperity Bancshares (PB) executive Cullen D. Zalman report in this Form 3?

Cullen D. Zalman reported his initial beneficial ownership in Prosperity Bancshares common stock, listing 8,000 direct shares and 2,366 indirect shares held through a 401(k) plan as of July 21, 2026.

How many Prosperity Bancshares (PB) shares does Cullen D. Zalman hold directly and indirectly?

Cullen D. Zalman holds 8,000 shares of Prosperity Bancshares common stock directly and 2,366 shares indirectly through a 401(k) plan, according to his initial beneficial ownership report dated July 21, 2026.

What type of ownership does Cullen D. Zalman report for his Prosperity Bancshares (PB) shares?

He reports a mix of direct ownership of 8,000 shares and indirect ownership of 2,366 shares held through a 401(k) plan, all in Prosperity Bancshares common stock.

Does the Prosperity Bancshares (PB) Form 3 for Cullen D. Zalman show any stock transactions?

The Form 3 reflects holding entries only, specifying Zalman’s 8,000 direct and 2,366 indirect Prosperity Bancshares common shares as of July 21, 2026, rather than detailing new purchases or sales.

What role does Cullen D. Zalman have at Prosperity Bancshares (PB) in this ownership report?

Cullen D. Zalman is identified as an Executive Vice President, Banking/Corporate at Prosperity Bancshares, and the report details his beneficial ownership of the company’s common stock as of July 21, 2026.

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

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Accepted by SEC EDGAR 07/23/2026 - 11:32 AM EDT Learn about SEC filing dates

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^*

Zalman Cullen D.

(Last) (First) (Middle)

80 SUGAR CREEK CENTER BLVD.

(Street)

SUGAR LAND TEXAS 77478

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
07/21/2026

3. Issuer Name and Ticker or Trading Symbol
PROSPERITY BANCSHARES INC [ PB ]

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)
	EVP Banking/Corporate

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	8,000	D
Common Stock	2,366	I	Through 401(k) plan

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)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	Cullen D. Zalman	07/23/2026
	** 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)