Company: CMA
Filing Date: 2025-08-05
Form Type: 424B5
Source: 0001193125-25-173600
Chunk: 33

Company: COMERICA INC
Filing Date: 2025-08-05
Form: 424B5
Chunk 33
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 directors or a duly authorized committee of our board of directors does not declare a dividend on the Series B Preferred Stock in respect of a dividend period, then no dividend will be deemed to have accrued for such dividend period, be payable on the applicable dividend payment date, or be cumulative, and we will have no obligation to pay any dividend for that dividend period to the holders of Series B Preferred Stock, including the holders of the depositary shares, and no related distribution will be made on the depositary shares, whether or not our board of directors or a duly authorized committee of our board of directors declares a dividend on the Series B Preferred Stock for any future dividend period. The holders of Series B Preferred Stock will be entitled to receive, when, as, and if declared by our board of directors or a duly authorized committee of our board of directors, out of assets legally available for the payment of dividends under Delaware law, non-cumulativecash dividends based on the liquidation preference of the Series B Preferred Stock at a rate equal to:

| • |     | from the date of original issue to, but excluding, the First Reset Date, a fixed rate per annum of 6.875%; and |

| • |     | from, and including, the First Reset Date, during each reset period, a rate per annum equal to the five-year 
 treasury rate as of the most recent reset determination date (as described below) plus 3.125%.               |

If declared by our board of directors or a duly authorized committee of our board of directors, we will pay dividends on the Series B Preferred Stock, in arrears, quarterly on the 1 stday of January, April, July and October of each year, commencing on January 1, 2026 (long first dividend period), each such date, referred to as a “dividend payment date”. If any date on which dividends would otherwise be payable is not a business day, then such date will nevertheless be a dividend payment date, but dividends on the Series B Preferred Stock, when, as and if declared, will be paid on the next succeeding business day (without adjustment in the amount of the dividend per share of Series B Preferred Stock). A “business day” means any day other than (i) a Saturday or Sunday or (ii) a day on which banking institutions in Dallas, Texas or New York, New York are authorized or obligated by law or executive order to close. S-22

Dividends will be payable to holders of record of Series B