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Stock-Based Compensation | 9 Months Ended
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Sep. 30, 2025
Share-Based Payment Arrangement [Abstract] |
Stock-Based Compensation | 8. STOCK–BASED COMPENSATION At September 30, 2025, Bancshares had one active stock-based incentive compensation plan with awards outstanding. On March 3, 2020, Bancshares’ Board of Directors established the Prosperity Bancshares, Inc. 2020 Stock Incentive Plan (the “2020 Plan”), which was approved by Bancshares’ shareholders on April 21, 2020. The 2020 Plan authorizes the issuance of up to 2,500,000 shares of common stock upon the exercise of options or pursuant to the grant or exercise, as the case may be, of other awards granted under the 2020 Plan, including incentive stock options, nonqualified stock options, stock appreciation rights, shares of restricted stock and restricted stock units. As of September 30, 2025, 475,631 shares of issued restricted stock have vested and 532,907 shares of issued restricted stock remain unvested. As of September 30, 2025, the Company had no stock options outstanding. Stock-based compensation expense related to restricted stock was $3.0 million and $3.1 million during the three months ended September 30, 2025, and 2024, and $9.0 million and $9.6 million during the nine months ended September 30, 2025, and 2024, respectively. As of September 30, 2025, there was $13.1 million of total unrecognized compensation expense related to stock-based compensation arrangements. That cost is expected to be recognized over a weighted average period of 1.93 years.

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