Prosperity Bancshares (PB) director awarded 1,700 common shares in Form 4

Rhea-AI Filing Summary

Prosperity Bancshares Inc. director Perry Mueller Jr reported a stock award of 1,700 shares of common stock on April 21, 2026 at no cost, classified as a grant or other acquisition. After this award, his direct holdings total 18,525 common shares.

The filing also lists indirect holdings of common stock: 2,588 shares held by his spouse, 162,054 shares held through an IRA, and 86,671 shares held by a special trust, all as of the same date.

Insider Trade Summary

4 transactions reported

Mixed 4 txns

Insider MUELLER PERRY JR

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	1,700	$0.00	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 18,525 shares (Direct, null); Common Stock — 86,671 shares (Indirect, By special trust)

Footnotes (1)

Key Figures

Stock grant: 1,700 shares Grant price: $0.00 per share Direct holdings: 18,525 shares +3 more

6 metrics

Stock grant 1,700 shares Common Stock grant on April 21, 2026

Grant price $0.00 per share Price for 1,700-share award

Direct holdings 18,525 shares Common Stock after grant

Spouse indirect holdings 2,588 shares Common Stock held by spouse

IRA indirect holdings 162,054 shares Common Stock held by IRA

Special trust holdings 86,671 shares Common Stock held by special trust

Key Terms

Grant, award, or other acquisition, indirect ownership, IRA, special trust

4 terms

Grant, award, or other acquisition financial

"transaction_code_description: "Grant, award, or other acquisition""

indirect ownership financial

"ownership_type: "indirect" with nature_of_ownership entries"

IRA financial

"nature_of_ownership: "By IRA" for one holding entry"

An individual retirement account (IRA) is a savings account designed to help people put aside money for their retirement, often with tax advantages that encourage long-term savings. It matters to investors because it can grow over time, providing financial security later in life, and offers benefits that can reduce current taxes or allow investments to compound more effectively.

special trust financial

"nature_of_ownership: "By special trust" for one holding entry"

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

MUELLER PERRY JR

(Last) (First) (Middle)

80 SUGAR CREEK CENTER BLVD.

(Street)

SUGAR LAND TEXAS 77478

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/21/2026

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

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

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

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	04/21/2026		A		1,700	A	$0	18,525	D
Common Stock								86,671	I	By special trust
Common Stock								162,054	I	By IRA
Common Stock								2,588	I	By spouse

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Perry Mueller Jr.	04/22/2026
	** 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 4 (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 4: SEC 1474 (03-26)

FAQ

What insider transaction did Prosperity Bancshares (PB) report for Perry Mueller Jr?

Prosperity Bancshares reported that director Perry Mueller Jr received a grant of 1,700 shares of common stock on April 21, 2026. The shares were awarded at no cost, increasing his direct holdings to 18,525 shares according to the Form 4 filing.

Was the Prosperity Bancshares (PB) transaction a stock purchase or a grant?

The transaction was a grant or award, not an open-market purchase. The Form 4 classifies the 1,700 common shares as a “Grant, award, or other acquisition” with a price of $0.00 per share, indicating compensation-related stock rather than a cash-funded trade.

How many Prosperity Bancshares (PB) shares does Perry Mueller Jr now hold directly and indirectly?

After the award, Perry Mueller Jr directly holds 18,525 Prosperity Bancshares common shares. Indirectly, the Form 4 lists 2,588 shares held by his spouse, 162,054 shares held by an IRA, and 86,671 shares held by a special trust, all reported as of April 21, 2026.

What indirect Prosperity Bancshares (PB) holdings are reported for Perry Mueller Jr?

The filing shows three indirect positions: 2,588 common shares held by his spouse, 162,054 shares held through an IRA, and 86,671 shares held by a special trust. These entries reflect ownership through related accounts and entities rather than direct personal registration.

What does the $0.00 price on Perry Mueller Jr’s Prosperity Bancshares (PB) shares mean?

A reported price of $0.00 per share indicates the 1,700 Prosperity Bancshares shares were received as a grant or award, not bought in the market. The Form 4 describes the transaction as a compensation-type acquisition rather than a purchase using cash consideration.