Prosperity Bancshares director Holmes sells 1,100 shares

The director's report also lists indirect holdings tied to a spouse, trusts and a limited partnership, alongside sales made under a Rule 10b5-1 plan.

Rhea-AI Filing Summary

Prosperity Bancshares Inc. (PB) director Ned S. Holmes reported selling 1,100 common shares in six entries on September 23, 2026. The weighted-average prices were: 96 shares at $67.7633, 404 at $68.6692, 89 at $67.6900, 411 at $68.6088, 18 at $67.6900 and 82 at $68.5646 per share. The entries include directly held shares, shares held by a profit sharing plan, and sales as trustee for an adult daughter's trust; the sales were made under a Rule 10b5-1 plan.

Separate indirect holdings listed include 2,000 shares held by a spouse, 8,820 shares as trustee of grandchildren's trust, 3,720 shares by trust, and 70,070 shares by limited partnership.

Insider Trade Summary 10b5-1

Net Seller: 1,100 shares

Net Sell 10 txns

Insider HOLMES NED S

Role Director

Sold 1,100 shs ($75K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	96	$67.7633	$7K
Sale	Common Stock F2	404	$68.6692	$28K
Sale	Common Stock F3	89	$67.69	$6K
Sale	Common Stock F4	411	$68.6088	$28K
Sale	Common Stock F3	18	$67.69	$1K
Sale	Common Stock F5	82	$68.5646	$6K
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 68,115 shares (Direct); Common Stock — 83,693 shares (Indirect, By profit sharing plan); Common Stock — 38,700 shares (Indirect, As trustee of SSH trust for adult daughter); Common Stock — 2,000 shares (Indirect, By spouse); Common Stock — 8,820 shares (Indirect, As trustee of granchildren's trust); Common Stock — 3,720 shares (Indirect, By trust); Common Stock — 70,070 shares (Indirect, By limited partnership)

Footnotes (5)

1. F1. The price reported in Column 4 of is a weighted average price. The shares were sold in multiple transactions at prices ranging from $67.63 to $67.91 inclusive. The reporting person undertakes to provide Prosperity Bancshares, any security holder of Prosperity Bancshares or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1) through (5) to this Form 4.
2. F2. The price reported in Column 4 of is a weighted average price. The shares were sold in multiple transactions at prices ranging from $68.13 to $69.09 inclusive.
3. F3. The price reported in Column 4 of is a weighted average price. The shares were sold in multiple transactions at prices ranging from $67.63 to $67.75 inclusive.
4. F4. The price reported in Column 4 of is a weighted average price. The shares were sold in multiple transactions at prices ranging from $68.135 to $69.03 inclusive.
5. F5. The price reported in Column 4 of is a weighted average price. The shares were sold in multiple transactions at prices ranging from $68.15 to $69.07 inclusive.

Key Figures

Common shares sold: 1,100 shares Sale entry: 96 shares at weighted average $67.7633 per share Sale entry: 404 shares at weighted average $68.6692 per share +5 more

8 metrics

Common shares sold 1,100 shares Six reported sale entries on September 23, 2026

Sale entry 96 shares at weighted average $67.7633 per share September 23, 2026; direct holding

Sale entry 404 shares at weighted average $68.6692 per share September 23, 2026; direct holding

Sale entry 89 shares at weighted average $67.6900 per share September 23, 2026; held by profit sharing plan

Sale entry 411 shares at weighted average $68.6088 per share September 23, 2026; held by profit sharing plan

Sale entry 18 shares at weighted average $67.6900 per share September 23, 2026; as trustee for adult daughter's trust

Sale entry 82 shares at weighted average $68.5646 per share September 23, 2026; as trustee for adult daughter's trust

Indirect common-stock holdings 2,000 shares held by spouse; 8,820 shares as trustee of grandchildren's trust; 3,720 shares by trust; 70,070 shares by limited partnership Separate holdings listed

Key Terms

Rule 10b5-1 plan, weighted average price, profit sharing plan, limited partnership

4 terms

Rule 10b5-1 plan regulatory

"the sales were made under a Rule 10b5-1 plan"

A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.

weighted average price financial

"is a weighted average price"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

profit sharing plan financial

"By profit sharing plan"

limited partnership financial

"By limited partnership"

A limited partnership is a legal business structure with two types of partners: at least one general partner who runs the business and bears full legal responsibility, and one or more limited partners who contribute money, share profits, and have liability capped at their investment. For investors, it matters because it separates control from financial exposure — like putting money into a store without managing it — and affects how returns, risks, taxes and transferability of ownership are handled.

FAQ

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

How many PB shares did director Ned S. Holmes sell?

Ned S. Holmes, a director of Prosperity Bancshares Inc. (PB), reported selling 1,100 common shares across six entries on September 23, 2026. The entries include both direct and indirect holdings.

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

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Available on EDGAR 09/23/2026 - 05:01 PM Accepted by SEC EDGAR 09/23/2026 - 05:00 PM Learn about SEC filing dates

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).

X

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^*

HOLMES NED S

(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)
09/23/2026

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	09/23/2026		S		96	D	$67.7633(1)	68,519	D
Common Stock	09/23/2026		S		404	D	$68.6692(2)	68,115	D
Common Stock	09/23/2026		S		89	D	$67.69(3)	84,104	I	By profit sharing plan
Common Stock	09/23/2026		S		411	D	$68.6088(4)	83,693	I	By profit sharing plan
Common Stock	09/23/2026		S		18	D	$67.69(3)	38,782	I	As trustee of SSH trust for adult daughter
Common Stock	09/23/2026		S		82	D	$68.5646(5)	38,700	I	As trustee of SSH trust for adult daughter
Common Stock								2,000	I	By spouse
Common Stock								8,820	I	As trustee of granchildren's trust
Common Stock								3,720	I	By trust
Common Stock								70,070	I	By limited partnership

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:

1. The price reported in Column 4 of is a weighted average price. The shares were sold in multiple transactions at prices ranging from $67.63 to $67.91 inclusive. The reporting person undertakes to provide Prosperity Bancshares, any security holder of Prosperity Bancshares or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1) through (5) to this Form 4.

2. The price reported in Column 4 of is a weighted average price. The shares were sold in multiple transactions at prices ranging from $68.13 to $69.09 inclusive.

3. The price reported in Column 4 of is a weighted average price. The shares were sold in multiple transactions at prices ranging from $67.63 to $67.75 inclusive.

4. The price reported in Column 4 of is a weighted average price. The shares were sold in multiple transactions at prices ranging from $68.135 to $69.03 inclusive.

5. The price reported in Column 4 of is a weighted average price. The shares were sold in multiple transactions at prices ranging from $68.15 to $69.07 inclusive.

	/s/ Charlotte M. Rasche, Attorney in Fact	09/23/2026
	** 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 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)