Company: CMA
Filing Date: 2025-08-05
Form Type: 424B5
Source: 0001193125-25-173600
Chunk: 37

Company: COMERICA INC
Filing Date: 2025-08-05
Form: 424B5
Chunk 37
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 stock repurchase plan; or        |

| • |     | the purchase of fractional interests in shares of junior stock pursuant to the conversion or exchange provisions 
 of such stock or the security being converted or exchanged; and                                                  |

| • |     | no shares of parity stock will be repurchased, redeemed or otherwise acquired for consideration by Comerica                                                                                                                                              
 otherwise than pursuant to pro rata offers to purchase all, or a pro rata portion, of the Series B Preferred Stock and such parity stock, unless such parity stock is repurchased, redeemed or acquired for consideration by Comerica in connection with 
 any of the following:                                                                                                                                                                                                                                    |

| • |     | as a result of a reclassification of parity stock for or into other parity stock or junior stock; |

S-24

| • |     | the exchange or conversion of one share of parity stock for or into another share of parity stock or junior 
 stock; or                                                                                                   |

| • |     | through the use of the proceeds of a substantially contemporaneous sale of other shares of parity stock or junior 
 stock.                                                                                                            |

When dividends are not paid in full on the shares of Series B Preferred Stock and any parity stock, all dividends declared on shares of Series B Preferred Stock and any parity stock will be declared on a proportional basis so that the amount of dividends declared per share will bear to each other the same ratio that accrued dividends for the then-current dividend period per share on Series B Preferred Stock, and accrued dividends, including any accumulations, on any parity stock, bear to each other. Subject to the restrictions described above, dividends (payable in cash, stock or otherwise), as may be determined by our board of directors or a duly authorized committee of our board of directors, may be declared and paid on our common stock and any other stock ranking equally with or junior to the Series B Preferred Stock from time to time out of any assets legally available for such payment, and the holders of Series B Preferred Stock will not be entitled to participate in any such dividend. Redemption The Series B Preferred Stock will not be subject to any mandatory redemption, sinking fund or other similar provisions. Neither the holders of Series B Preferred Stock nor holders of depositary shares will have the right to require the redemption or repurchase of the Series B Preferred Stock. Optional Redemption We may redeem the Series B Preferred Stock at our option, in whole or in part, from time to time, on any dividend payment date on or after the First Reset Date, at a redemption price equal to