---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-376886"
form_type: "8-K/A"
ticker: "PB"
cik: "0001068851"
company_name: "PROSPERITY BANCSHARES INC"
filed_at: "2026-08-31T20:30:16+00:00"
generated_at: "2026-08-31T20:32:45.818704+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.9
calibrated_materiality_score: 0.9
confidence: "high"
source: SEC EDGAR
---

# Prosperity acquires Stellar Bancorp for ~$1.99B in stock+cash; pro forma EPS roughly flat

## Summary
- Completed Stellar Bancorp acquisition on July 1, 2026; each Stellar share converted into 0.3803 PB shares plus $11.36 cash.
- Total consideration ~$1.99B ($1.41B stock + $578.7M cash) based on PB closing price of $73.03 on June 30, 2026.
- Pro forma 2025 net income $656.3M (EPS $5.74) vs PB standalone $542.8M ($5.72); Q1 2026 pro forma net income $146.6M (EPS $1.23) vs $116.3M ($1.16).
- Pro forma total assets as of Mar 31, 2026: $54.19B; goodwill rises to $4.56B, core deposit intangibles to $270.8M.
- Estimated direct transaction costs $63.0M; preliminary purchase price allocation with cost savings anticipated but not quantified.

## SEC filing metadata
- accession: 0001193125-26-376886
- form_type: 8-K/A
- ticker: PB
- cik: 0001068851
- company_name: PROSPERITY BANCSHARES INC
- filed_at: 2026-08-31T20:30:16+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.9
- calibrated_materiality_score: 0.9
- confidence: high
- sec_items: 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1068851/000119312526376886/0001193125-26-376886-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1068851/000119312526376886/pb-20260701.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-376886
- JSON: https://secwatch.observer/filing/0001193125-26-376886.json
- Plain text: https://secwatch.observer/filing/0001193125-26-376886.txt

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