Company: CMA
Filing Date: 2025-11-25
Form Type: DEFM14A
Source: 0001193125-25-297173
Chunk: 10

Company: COMERICA INC
Filing Date: 2025-11-25
Form: DEFM14A
Chunk 10
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erica board of directors unanimously recommends that holders of Comerica common stock vote “FOR” the Comerica merger proposal, “FOR” the Comerica compensation proposal and “FOR” the Comerica adjournment proposal.

If you have any questions or need assistance with voting, please contact Comerica’s proxy solicitor, Innisfree M&A Incorporated, by calling toll-free at (877) 717-3926or collect at (212) 750-5833.

Your vote is important.We cannot complete the transactions contemplated by the merger agreement unless holders of Comerica common stock adopt the merger agreement. The affirmative vote of a majority of all of the votes entitled to be cast on the
merger agreement by holders of Comerica common stock is required to adopt the Comerica merger proposal. Whether or not you plan to attend the Comerica special meeting, we urge you to please promptly complete, sign, date and return the accompanying
proxy card in the enclosed postage-paid envelope or authorize the individuals named on the accompanying proxy card to vote your shares by calling the toll-free telephone number or by using the Internet as described in the instructions included with
the accompanying proxy card. If your shares are held in the name of a bank, broker or other nominee, please follow the instructions on the voting instruction card furnished by such bank, broker or other nominee.

By Order of the Board of Directors,

Curtis C. Farmer

Chairman of the Board, Chief Executive Officer and President

Comerica Incorporated

November 25, 2025

TABLE OF CONTENTS

|                                                                                    |     | Page |    |
| QUESTIONS AND ANSWERS                                                              |     |      |  1 |
| SUMMARY                                                                            |     |      | 18 |
| The Parties to the Merger Agreement                                                |     |      | 18 |
| The Mergers and the Merger Agreement                                               |     |      | 19 |
| Merger Consideration                                                               |     |      | 20 |
| Treatment of Comerica Preferred Stock and Depository Shares                        |     |      | 20 |
| Treatment of Comerica Equity Awards                                                |     |      | 21 |
| Material U.S. Federal Income Tax Consequences of the First                         
 Merger                                                                             |     |      | 22 |
| Fifth Third’s Reasons for the Mergers; Recommendation of Fifth Third’s             
 Board of Directors                                                                 |     |      | 22 |
| Comerica’s Reasons for the