Form 4: Stellar Bancorp Executive Reports Merger-Related Stock Transactions

Justin M. Long, SEVP, GC & Secretary of Stellar Bancorp, Inc., reported significant stock transactions related to the company's merger with Prosperity Bancshares, Inc.

Summary

• Justin M. Long, SEVP, GC & Secretary of Stellar Bancorp, Inc., has reported transactions related to the merger with Prosperity Bancshares, Inc.
• The merger is expected to be effective on July 1, 2026, as per the Agreement and Plan of Merger dated January 27, 2026.
• Each share of Stellar Bancorp's common stock will be converted into 0.3803 shares of Prosperity Bancshares' common stock and $11.36 in cash.
• This includes the conversion of 29,478 shares of common stock, 8,372 restricted stock awards, and various performance unit awards.
• Performance unit awards will vest fully and be converted into cash payments, with performance conditions deemed achieved at target or higher levels.
• A transfer of 222 shares of Stellar Bancorp common stock to an ex-spouse pursuant to a domestic relations order was also reported.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral filing, primarily reporting on routine executive stock transactions related to a pre-announced merger, with no new financial performance indicators.

Positives

• The merger with Prosperity Bancshares, Inc. is proceeding as planned with an effective date of July 1, 2026.
• Restricted stock and performance unit awards are set to vest and convert into merger consideration, providing value to the executive.
• Performance conditions for unit awards are deemed achieved at target or higher levels, indicating positive performance outcomes.
• The transaction structure provides a combination of stock and cash consideration for Stellar Bancorp shareholders.

Negatives

• The filing details a transfer of 222 shares to an ex-spouse, which reduces the reporting person's direct beneficial ownership.

Risks

• The merger is subject to the terms and conditions set forth in the Merger Agreement, implying potential for unforeseen issues.
• The conversion of Stellar Bancorp stock into Prosperity Bancshares stock and cash is contingent on the successful completion of the merger.

Future Outlook

The filing indicates that the merger between Stellar Bancorp, Inc. and Prosperity Bancshares, Inc. is scheduled to be completed on July 1, 2026. Upon completion, Stellar Bancorp's common stock will be converted into Prosperity Bancshares' common stock and cash.

Management Comments

• The reporting person, Justin M. Long, has executed transactions as part of the merger with Prosperity Bancshares, Inc.
• The filing details the conversion of various equity awards into merger consideration, with performance conditions deemed met.

Industry Context

StockSavvy.ai notes that this Form 4 filing reflects a significant executive-level transaction within the context of a pending bank merger. Such filings are standard during M&A activity, detailing how executive equity is converted and managed.

Related Party Transactions

• Transfer of 222 shares of Company Common Stock to an ex-spouse pursuant to a domestic relations order.

Stakeholder Impact

• Shareholders of Stellar Bancorp will receive Prosperity Bancshares stock and cash upon merger completion.
• Executives holding Stellar Bancorp equity awards will see these vest and convert into merger consideration.
• Employees of Stellar Bancorp may experience changes in roles and reporting structures post-merger.

Next Steps

• Completion of the merger between Stellar Bancorp, Inc. and Prosperity Bancshares, Inc. on July 1, 2026.
• Conversion of Stellar Bancorp shares and equity awards into Prosperity Bancshares stock and cash as per the merger agreement.

Key Dates

Keywords

Stellar Bancorp, STEL, Form 4, SEC Filing, Merger, Prosperity Bancshares, Justin M. Long, Stock Transaction, Beneficial Ownership, Executive Compensation, Restricted Stock, Performance Units