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NASDAQ: OSBC OLD SECOND BANCORP INC 8-K

Old Second Bancorp director resigns at mandatory retirement age

Filed July 8, 2026 · Period ending July 7, 2026 · ~1 min read

2 key changes

Key Changes

  • low

    Director John Williams, Jr. resigned effective July 7, 2026, upon reaching age 73 in accordance with the company's mandatory retirement policy for directors. The resignation was not due to any disagreement with the company.

  • low

    The Board will not immediately fill the vacancy and will reduce its size by one member, maintaining Board classes as nearly equal in number as possible per the Nominating and Corporate Governance Committee's recommendation.

Summary

Old Second Bancorp disclosed the routine departure of director John Williams, Jr., who resigned from the Board effective July 7, 2026, after reaching the company's mandatory retirement age of 73. The company explicitly stated the resignation was not the result of any disagreement. Mr.

Williams had served on the Risk and Insurance Committee since 2021. The Board does not plan to immediately fill the vacancy and will reduce its size by one member, following a recommendation from the Nominating and Corporate Governance Committee to maintain Board classes as nearly equal in number as possible. This is a procedural governance matter with no material impact on operations or strategy.

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Figures/quotes linked to EDGAR · Narrative written by AI · Jul 9, 2026 · How we verify