8-K current report · filed Apr 22, 2026

Stellar Bancorp, Inc. (STEL) 8-K Current Report: April 22, 2026

Item 8.01Item EX-99.1STEL overview

Short answer

Stellar Bancorp, Inc. (STEL) filed an 8-K current report with the SEC on April 22, 2026 reporting Item 8.01 (Other Events), Item EX-99.1 (Exhibit EX-99.1). All required regulatory approvals received for Prosperity’s acquisition of Stellar and the related bank merger.

Stellar Bancorp, Inc. 8-K event analysis

AI summary of each reported item and its exhibits

Item 8.01 · Other Events

  • All required regulatory approvals received for Prosperity’s acquisition of Stellar and the related bank merger
  • Stellar shareholder vote scheduled for May 27, 2026
  • Merger targeted for completion on or about July 1, 2026, subject to shareholder approval and customary closing conditions
  • Remaining execution risk shifts primarily to Stellar shareholders and closing conditions

Item EX-99.1 · Exhibit EX-99.1

  • All required regulatory approvals received, materially reducing a key closing risk for Prosperity’s acquisition of Stellar
  • Stellar shareholder vote scheduled for May 27, 2026, the remaining major approval milestone
  • Closing targeted for about July 1, 2026, subject to shareholder approval and customary conditions
  • Prosperity’s $38.463 billion holding company would acquire Stellar through a stock-including transaction, creating shareholder dilution risk
  • Registration statement effective April 21, 2026, with proxy materials expected to be mailed April 23, 2026

Generated from the filing text and exhibits; verify against the original. What 8-K item codes mean

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