4 Additional Information for Shareholders of LSB Financial Corp. This communication does not constitute an offer to sell or the solicitation of an offer to buy any securities or a solicitation of any vote or approval. In connection with the proposed merger, Old National Bancorp (“Old National”) has filed with the Securities and Exchange Commission (“SEC”) a Registration Statement on Form S-4 (Registration Statement No. 333-197258) that includes a preliminary Proxy Statement of LSB Financial Corp. (“LSB”) and a preliminary Prospectus of Old National, as well as other relevant documents concerning the proposed transaction. The SEC declared the Form S-4 Registration Statement effective on July 23, 2014. A definitive Proxy Statement/Prospectus will be mailed to shareholders of LSB. Shareholders are urged to read the Registration Statement and the definitive Proxy Statement/Prospectus regarding the merger and any other relevant documents filed with the SEC, as well as any amendments or supplements to those documents, because they will contain important information. A free copy of the definitive Proxy Statement/Prospectus (when available), as well as other filings containing information about Old National and LSB, may be obtained at the SEC’s Internet site (http://www.sec.gov). You will also be able to obtain these documents (when available), free of charge, from Old National at www.oldnational.com under the tab “Investor Relations” and then under the heading “Financial Information” or from LSB by accessing LSB’s website at www.lsbank.com under the tab “About” and then under the heading “Investor Relations.” Old National and LSB and certain of their directors and executive officers may be deemed to be participants in the solicitation of proxies from the shareholders of LSB in connection with the proposed merger. Information about the directors and executive officers of Old National is set forth in the proxy statement for Old National’s 2014 annual meeting of shareholders, as filed with the SEC on a Schedule 14A on March 14, 2014. Information about the directors and executive officers of LSB is set forth in the proxy statement for LSB’s 2014 annual meeting of shareholders, as filed with the SEC on a Schedule 14A on March 14, 2014. Additional information regarding the interests of those participants and other persons who may be deemed participants in the transaction may be obtained by reading the definitive Proxy Statement/Prospectus regarding the proposed merger when it becomes available. Free copies of this document may be obtained as described in the preceding paragraph. |