1st Source elects Andrea Short to board; three directors re-elected

4. Ratification of the appointment of FORVIS LLP as 1st Source Corporation’s independent registered public accounting firm for the fiscal year ending December 31, 2023 The Audit Committee has appointed FORVIS LLP as the independent registered public accounting firm for 1st Source for the fiscal year ending December 31, 2023. Votes For Votes Against Votes Abstain Broker Non-Vote 23,093,723 124,436 159,177 —

2. Advisory Approval of Executive Compensation The Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Dodd-Frank Act”), which was enacted on July 21, 2010, contains a requirement that publicly traded firms, like the Company, permit a separate, non-binding advisory shareholder vote to approve the compensation of the Company’s executive officer. Votes For Votes Against Votes Abstain Broker Non-Vote 19,605,660 2,311,040 45,139 1,415,497

1. Election of Directors The directors named below were elected to the Board of Directors, as follows: Terms Expiring in April, 2026: Nominee Votes For Votes Against Votes Abstain Broker Non-Vote Andrea G. Short 21,302,022 626,833 32,984 1,415,497 Christopher J. Murphy III 16,708,165 5,211,908 41,766 1,415,497 Timothy K. Ozark 15,604,266 6,317,221 40,352 1,415,497 Todd F. Schurz 16,088,671 5,836,962 36,206 1,415,497

3. Advisory Approval of Frequency of Future Advisory Votes on Executive Compensation Section 951 of the Dodd-Frank Act requires the Company to seek a non-binding advisory shareholder vote to permit shareholders to express their views on how often shareholders will vote on the Company’s executive compensation as disclosed in the applicable Compensation Discussion and Analysis, executive compensation tables and related narrative disclosure. Under the Dodd-Frank Act, this vote can take place every one, two, or three years. Every Three Years Every Two Years Every One Year Votes Abstain Broker Non-Vote 12,660,086 190,725 9,063,252 47,776 1,415,497