Form 4: Prosperity Bancshares Director Sells Stock Under 10b5-1 Plan

Prosperity Bancshares Director Ned S. Holmes sold 1,100 shares of common stock for approximately $72,128 under a pre-arranged 10b5-1 plan.

Summary

• Ned S. Holmes, a Director of Prosperity Bancshares Inc. (PB), reported the sale of 1,100 shares of common stock.
• The transactions occurred on November 19, 2025, and were executed pursuant to a Rule 10b5-1(c) contract, instruction, or written plan.
• The shares were sold in three separate transactions at weighted average prices of $65.5708, $65.5979, and $65.5735 per share.
• The total value of the shares sold is approximately $72,128.
• Following these transactions, Ned S. Holmes directly beneficially owns 88,415 shares of common stock.
• Indirect beneficial ownership includes 105,693 shares by a profit sharing plan, 43,100 shares as trustee of an SSH trust for an adult daughter, 2,000 shares by spouse, 8,820 shares as trustee of grandchildren's trust, 3,720 shares by a trust, and 70,070 shares by a limited partnership.

Sentiment

Score: 4

Explanation: The sentiment is slightly negative due to an insider sale, but mitigated by the fact that it was a pre-arranged transaction under a 10b5-1 plan, suggesting it was not based on new, adverse information.

Positives

• The transactions were made pursuant to a Rule 10b5-1(c) plan, indicating a pre-scheduled sale rather than a reaction to immediate non-public information, which aligns with good corporate governance practices.

Negatives

• A director selling shares, even under a pre-arranged plan, can sometimes be perceived as a slightly negative signal by investors, as it reduces insider ownership.

Risks

• No specific risks were mentioned in this Form 4 filing beyond the general market perception associated with insider selling.

Future Outlook

This Form 4 filing does not contain any forward-looking statements or guidance regarding the company's future performance or outlook.

Industry Context

This insider transaction report reflects a routine disclosure of a director's stock sale and does not provide broader industry context or trends. Such sales are common for executives managing personal portfolios, especially when pre-scheduled through 10b5-1 plans.

Corporate Governance

Related Party Transactions

• Indirect beneficial ownership of 105,693 shares by a profit sharing plan.
• Indirect beneficial ownership of 43,100 shares as trustee of an SSH trust for an adult daughter.
• Indirect beneficial ownership of 2,000 shares by spouse.
• Indirect beneficial ownership of 8,820 shares as trustee of grandchildren's trust.
• Indirect beneficial ownership of 3,720 shares by a trust.
• Indirect beneficial ownership of 70,070 shares by a limited partnership.

Stakeholder Impact

• Shareholders may note the reduction in direct insider ownership, though the impact is likely minimal given the transaction size relative to total holdings and the pre-planned nature.

Key Dates

Recommendation

A single, pre-planned sale by a director, especially of a relatively small number of shares compared to total holdings, typically does not warrant a change in investment recommendation. While insider sales are monitored, the 10b5-1 plan suggests a personal financial planning decision rather than a reflection of new company-specific negative information. Investors should continue to evaluate the company based on its fundamental performance and broader market conditions.

Keywords

Prosperity Bancshares, PB, Insider Trading, Form 4, Stock Sale, Director, 10b5-1 Plan, Beneficial Ownership