Stellar Bancorp, Inc. (STEL): Completion of Acquisition or Disposition of Assets
Stellar Bancorp, Inc. (STEL) filed an SEC Form 8-K — Completion of Acquisition or Disposition of Assets. 8-K false 0001473844 --12-31 0001473844 2026-07-01 2026-07-01 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): J
How this was made
The 30-second read
Why it matters
For STEL holders and merger-arb participants, the key new information is deal consummation plus the concrete payout terms and the planned NYSE withdrawal/suspension, which can quickly change tradability and spread dynamics.
Market read
STEL’s merger close and NYSE delisting request are actionable for merger-arb and liquidity/position management, with specified consideration terms.
What to watch
Traders should focus on post-close trading mechanics (expected cessation/liquidity) and how consideration (stock vs cash) may affect relative value versus any remaining arb spread.
Background
The filing is an SEC Form 8-K reporting completion of Stellar’s merger into Prosperity, including the exchange ratio and cash consideration, plus NYSE delisting steps.
Ticker impact
Stellar Bancorp completed its merger into Prosperity Bancshares on July 1, 2026, with Stellar shares converted to Prosperity stock plus $11.36 cash.
Near-term STEL liquidity/price discovery likely deteriorates into delisting; merger consideration should dominate any remaining trading until cessation.
The 8-K states the merger closed, specifies the exchange ratio and per-share cash consideration, and confirms NYSE withdrawal/suspension ahead of July 1, 2026.
Market effects
Bank M&A completion can shift regional bank consolidation expectations, but this filing is deal-mechanics focused rather than sector-wide guidance.
Potentially affects Texas banking market structure via Prosperity Bank becoming the surviving bank in the combined entity.
Limited global relevance; primarily a US regional banking consolidation event.
Counterpoint
Because the merger is already consummated, incremental price action in STEL may be muted versus earlier rumor/approval phases; most repricing may have occurred before close.
Key entities
- public_companyStellar Bancorp, Inc.
Subject of the 8-K; merged into Prosperity Bancshares on July 1, 2026 and is being delisted from the NYSE.
- public_companyProsperity Bancshares, Inc.
Surviving corporation in the merger; continues as the issuer whose common stock is received by Stellar shareholders.
- subsidiaryStellar Bank
Wholly owned subsidiary of Stellar that merged into Prosperity Bank as part of the transactions.
- subsidiaryProsperity Bank
Surviving bank entity in the bank-merger step.