Company: ONBPP
Filing Date: 2025-01-14
Form Type: S-4
Source: 0001104659-25-003488
Chunk: 9

Company: OLD NATIONAL BANCORP /IN/
Filing Date: 2025-01-14
Form: S-4
Chunk 9
---
 | ​ | ​ | ​    | ​ | B-1 | ​ | ​ |
| Annex C – Form of Director Voting Agreement                                                            | ​ | ​ | ​    | ​ | C-1 | ​ | ​ |
| Annex D – Opinion of J.P. Morgan Securities LLC                                                        | ​ | ​ | ​    | ​ | D-1 | ​ | ​ |
| Annex E – Sections 302A.471 and 302A.473 of the Minnesota Business Corporation Act                     | ​ | ​ | ​    | ​ | E-1 | ​ | ​ |

ii

TABLE OF CONTENTS

### CERTAIN QUESTIONS AND ANSWERS ABOUT THE MERGERS AND THE SPECIAL MEETING
**The following are questions that you may have about the mergers and the Bremer special meeting, and brief answers to those questions. You are urged to read carefully the remainder of this proxy statement/ prospectus because the information in this section does not provide all of the information that might be important to you with respect to the mergers or the Bremer special meeting. Additional important information is also contained in the documents attached to or incorporated by reference into this proxy statement/prospectus. See “Where You Can Find More Information” for more details.**

**Q:**

#### What are the mergers?
A:

Old National Bancorp (“Old National”), Bremer Financial Corporation (“Bremer”) and ONB Merger Sub, Inc. (“ONB Merger Sub”) have entered into an Agreement and Plan of Merger, dated as of November 25, 2024 (the “merger agreement”). Under the merger agreement, ONB Merger Sub will first merge with and into Bremer (the “first step merger”), with Bremer as the surviving corporation in the first step merger as a wholly-owned subsidiary of Old National. Immediately following the first step merger, and as part of a single, integrated transaction, Bremer will then merge with and into Old National (the “second step merger” and together with the first step merger, the “mergers”), with Old National as the surviving corporation in the second step merger. Immediately following the second step merger, or at a later time as determined by Old National, Bremer’s wholly-owned banking subsidiary, Bremer Bank, a national banking association, will merge with and into Old National’s wholly-owned banking subsidiary, Old National Bank, a national banking association, with Old National Bank as the surviving bank