Susan D. Aaron, a member of the Board of Directors of Horizon Bancorp, Inc., submitted notice on May 22, 2023 that she will retire from the Board, effective as of December 31, 2023. She will also retire from the Board of Directors of the Company's wholly owned subsidiary, Horizon Bank, effective December 31, 2023. The decision by Ms. Aaron to retire as a director was not a result of any disagreement with the Board or management of the Company or Horizon Bank.

Ms. Aaron serves as a member of the Wealth Management Committee, the Enterprise Risk Management & Credit Policy/CRA & Fair Lending Committee, and as an alternate member of the Compensation Committee.