Company: CMA
Filing Date: 2025-08-05
Form Type: 424B5
Source: 0001193125-25-173600
Chunk: 105

Company: COMERICA INC
Filing Date: 2025-08-05
Form: 424B5
Chunk 105
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 at which the 
 principal amount of debt securities may be purchased upon exercise of the debt warrant;                          |

| • |     | the date on which the right to exercise the debt warrants shall commence and the date on which this right shall 
 expire;                                                                                                         |

| • |     | a discussion of the material U.S. Federal income tax considerations; |

| • |     | whether the warrants represented by the debt warrant certificates will be issued in registered or bearer form; |

| • |     | the currency, currencies or currency units in which the offering price, if any, and exercise price are payable; |

| • |     | the anti-dilution provisions of the debt warrants; and |

| • |     | any other terms of the debt warrants. |

19

You, as a debt warrant holder, will generally not have any of the rights of holders of Comerica debt securities, including the right to receive the payment of principal of, any premium or interest on, or any additional amounts with respect to, the Comerica debt securities or to enforce any of the covenants of the Comerica debt securities or the applicable Comerica indenture. Exercise of Debt Warrants You may exercise your debt warrants by surrendering at the office of the debt warrant agent your debt warrant certificate with the form of election to purchase on the reverse side of the certificate properly completed and signed by you, which signature must be guaranteed by a bank or trust company, by a broker or dealer which is a member of FINRA or by a member of a national securities exchange. You must also submit a payment in full of the exercise price, as set forth in the applicable prospectus supplement. Upon the exercise of debt warrants, Comerica will issue the debt securities in authorized denominations in accordance with your instructions. If you exercise less than all of the debt warrants evidenced by your debt warrant certificate, a new debt warrant certificate will be issued for the remaining number of debt warrants. DESCRIPTION OF STOCK PURCHASE CONTRACTS AND STOCK PURCHASE UNITS Comerica may issue stock purchase contracts, including contracts obligating holders to purchase from or sell to Comerica, and Comerica to sell to or purchase from the holders, a specified number of shares of Common Stock, shares of preferred stock or depositary shares at a future date or dates. The consideration per share of Common Stock, preferred stock or depositary shares and the number of shares of each may be fixed at the time the stock purchase contracts are issued or may be determined