Company: CMA
Filing Date: 2025-08-05
Form Type: 424B5
Source: 0001193125-25-173600
Chunk: 107

Company: COMERICA INC
Filing Date: 2025-08-05
Form: 424B5
Chunk 107
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 one or more transactions, including negotiated transactions, at a fixed public offering price or at varying prices determined at the time of sale. The securities may be offered either to the public through underwriting syndicates represented by one or more managing underwriters or by one or more underwriters without a syndicate. Unless otherwise specified in connection with a particular offering of securities, the underwriters will not be obligated to purchase offered securities unless specified conditions are satisfied, and if the underwriters do purchase any offered securities, they will purchase all offered securities. In connection with underwritten offerings of the offered securities and in accordance with applicable law and industry practice, underwriters may over-allot or effect transactions that stabilize, maintain or otherwise affect the market price of the offered securities at levels above those that might otherwise prevail in the open market, including by entering stabilizing bids, effecting syndicate covering transactions or imposing penalty bids, each of which is described below.

| • |     | A stabilizing bid means the placing of any bid, or the effecting of any purchase, for the purpose of pegging, 
 fixing or maintaining the price of a security.                                                                |

| • |     | A syndicate covering transaction means the placing of any bid on behalf of the underwriting syndicate or the 
 effecting of any purchase to reduce a short position created in connection with the offering.                |

| • |     | A penalty bid means an arrangement that permits the managing underwriter to reclaim a selling concession from a                                                    
 syndicate member in connection with the offering when offered securities originally sold by the syndicate member are purchased in syndicate covering transactions. |

These transactions may be effected on the NYSE, in the over-the-countermarket, or otherwise. Underwriters are not required to engage in any of these activities, or to continue such activities if commenced. If dealers are utilized in the sale of offered securities, Comerica will sell such offered securities to the dealers as principals. The dealers may then resell such offered securities to the public at varying prices to be determined by such dealers at the time of resale. The names of the dealers and the terms of the transaction will be set forth in the prospectus supplement relating to that transaction. Offered securities may be sold directly by Comerica to one or more institutional purchasers, or through agents designated by Comerica from time to time, at a fixed price or prices, which may be changed, or at varying prices determined at the time of sale. Any agent involved in the offer or sale of the