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AI brief of an SEC Form 8-K · Prosperity Bancshares (PB)

Prosperity Bancshares completes $590 million cash and stock merger with Stellar Bancorp

Neutral Impact 5 of 5 m&a Written later

Prosperity Bancshares completed its acquisition of Stellar Bancorp on July 1, 2026, with Stellar merging into Prosperity and Stellar Bank merging into Prosperity Bank. Stellar holders received 0.3803 Prosperity shares plus $11.36 in cash per share, with total consideration of about $590 million in cash and 19 million Prosperity shares, and the filing notes Prosperity assumed about $2.17 billion in Federal Home Loan Bank of Dallas obligations.

Key points

  • Closing effective July 1, 2026; merger agreement dated January 27, 2026
  • Stellar holders received 0.3803 Prosperity shares and $11.36 cash per share; total consideration about $590 million cash and 19 million shares
  • Prosperity assumed about $2.17 billion in FHLB Dallas obligations issued to Stellar Bank
  • Robert R. Franklin, Jr. joined the board and became Vice Chairman; his agreement includes a $3,000,000 signing bonus and a 25,000-share restricted stock award

The filing

CompanyProsperity Bancshares (PB)
Form8-K, current report
Filed with the SECJul 1, 2026, 7:15 AM ET
Accession number0001193125-26-291486

Items reported: 2.01 Acquisition or Disposition Completed2.03 New Direct Financial Obligation5.02 Director / Officer Change8.01 Other Events

Read the filing on SEC.gov ↗

Written by AI (Anthropic Claude, claude-haiku-5-5) on Nov 8, 2026, 1:17 AM ET, from the text of the filing and its press-release exhibits only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on July 01, 2026.

Briefs are written by AI from the filing text (each brief's own page names the model) and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the model's reading of the filing for shareholders, not a price forecast. Not investment advice.