On October 25, 2022, Duane Suits, a member of the Board of Directors of Old Second Bancorp, Inc. submitted his resignation from the Board effective November 8, 2022. Mr. Suits submitted his resignation in accordance with the Company's Director Resignation Policy, which requires that any person serving as a director submit his or her resignation as a director upon attaining the age of 73 during his or her tenure. As such, Mr. Suits resignation is not the result of any disagreement with the Company.

The Company does not anticipate immediately filling the vacancy on the Board caused by Mr. Suits' resignation and will reduce the size of the Board by one member.