---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-025602"
form_type: "8-K"
ticker: "PB"
cik: "0001068851"
company_name: "PROSPERITY BANCSHARES INC"
filed_at: "2026-01-28T23:59:59+00:00"
generated_at: "2026-05-16T06:51:56.665850+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Prosperity Bancshares to acquire Stellar Bancorp for ~$2.002B in stock/cash

## Summary
- Prosperity issues 0.3803 shares plus $11.36 cash per Stellar share; total consideration ~$2.002B.
- Stellar has $10.807B assets, $7.301B loans, and $9.021B deposits as of Dec 31, 2025.
- Robert R. Franklin Jr. to join Prosperity Bank as Vice Chairman; Ramon Vitulli as Houston Area Chairman.
- Two Stellar directors will join Prosperity Board; deal expected to close Q2 2026.
- Combination creates second largest Texas bank by deposits with over 330 branches.

## SEC filing metadata
- accession: 0001193125-26-025602
- form_type: 8-K
- ticker: PB
- cik: 0001068851
- company_name: PROSPERITY BANCSHARES INC
- filed_at: 2026-01-28T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1068851/000119312526025602/0001193125-26-025602-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1068851/000119312526025602/d103745d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-025602
- JSON: https://secwatch.observer/filing/0001193125-26-025602.json
- Plain text: https://secwatch.observer/filing/0001193125-26-025602.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.