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BCS

Notice of Proposed Sale · 144

Prosperity Bancshares Inc

PBNYSEEQUITYCurrent

Notice of Proposed Sale

Filed Sep 16, 2026Accepted Sep 16, 2026, 12:05 PM EDTFiling CIK 1068851Accession 0001969223-26-001027
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Structured filing — 144

primary_doc.xml

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Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.

Proposed-sale notice

Issuer
PROSPERITY BANCSHARES INC
Issuer CIK
0001068851
SEC file number
001-35388
Phone
7136939300
Person for whose account securities are to be sold
HOLMES NED S
Relationships to issuer
Director
Street
4295 SAN FELIPE
Street (continued)
N/A
City
HOUSTON
State / country code
TX
Postal code
77027

Securities proposed for sale

Securities proposed for sale · 1 reported row
SecurityProposed unitsAggregate market valueUnits outstandingApproximate sale dateExchangeBroker / market maker
Common8,800625,592.00120,176,77109/16/2026NYSEUBS Financial Services, Inc.

Broker / market maker — proposed row 1, entry 1

Name
UBS Financial Services, Inc.
Street
11 Madison Avenue
Street (continued)
4th Floor
City
New York
State / country code
NY
Postal code
10010

Acquisition of securities to be sold

Acquisition of securities to be sold · 3 reported rows
SecurityAcquiredNature of acquisitionAcquired fromAmount acquiredGift transactionDonor acquiredPayment dateNature of payment
Title09/16/2026TransactionPerson100Y09/16/202609/16/2026Payment
Title09/16/2026TransactionPerson100Y09/16/202609/16/2026Payment
Title09/16/2026TransactionPerson100Y09/16/202609/16/2026Payment

Sales reported in the preceding three months

Sales reported in the preceding three months · 3 reported rows
SellerSecuritySale dateAmount soldGross proceeds
Ned S HolmesCommon06/17/20266,500473,838.30
Ned S Holmes Profit Sharing PlanCommon06/17/20266,500473,865.50
The Sherrill S Holmes Child's Trust FBO Allison HolmesCommon06/17/20261,30094,777.11

Seller — prior-sale row 1, entry 1

Name
Ned S Holmes
Street
4295 SAN FELIPE
City
HOUSTON
State / country code
TX
Postal code
77027

Seller — prior-sale row 2, entry 1

Name
Ned S Holmes Profit Sharing Plan
Street
4295 SAN FELIPE
City
HOUSTON
State / country code
TX
Postal code
77027

Seller — prior-sale row 3, entry 1

Name
The Sherrill S Holmes Child's Trust FBO Allison Holmes
Street
4295 SAN FELIPE
City
HOUSTON
State / country code
TX
Postal code
77027

Prior-sale reporting

Nothing to report for the preceding three months
N

Remarks

4,000 shares represented in this filing are being sold under Ned S Holmes. 4,000 shares represented in this filing are being sold under Ned S Holmes Profit Sharing Plan. 800 shares represented in this filing are being sold under The Sherrill S Holmes Child's Trust FBO Allison Holmes. Between 6/17/2026 and 9/15/2026 6,500 shares were sold by Ned S. Holmes resulting gross proceeds of $473,865.50; 6,500 shares were sold by Ned S. Holmes Profit Sharing Plan resulting in gross proceeds of $473,838.30 and 1,300 shares were sold by The Sherrill S Holmes Child's Trust FBO Allison Holmes resulting in gross proceeds of $94,777.11. Itemized details are provided in the attached Exhibit.

Notice signature

Notice date
09/16/2026
Signed
/s/ UBS Financial Services Inc, as attorney-in-fact for Ned S Holmes
Plan adoption dates
07/30/2024

Filed exhibits

Company context

As of March 31, 2026, Prosperity Bancshares, Inc.® is a $43.619 billion Houston, Texas based regional financial holding company providing personal banking services and investments to consumers and businesses throughout Texas and Oklahoma. Founded in 1983, Prosperity believes in a community banking philosophy, taking care of customers, businesses and communities in the areas it serves by providing financial solutions to simplify everyday financial needs. In addition to offering traditional deposit and loan products, Prosperity offers digital banking solutions, credit and debit cards, mortgage services, retail brokerage services, trust and wealth management, and treasury management.

Current securities

Recent company filings

  1. Results of Operations and Financial ConditionOct 28, 2026
  2. Financial Statements and ExhibitsAug 31, 2026
  3. 13F-HR filingAug 14, 2026
  4. 10-Q filingAug 6, 2026
  5. Results of Operations and Financial ConditionJul 29, 2026

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