Company: CMA
Filing Date: 2025-08-05
Form Type: 424B5
Source: 0001193125-25-173600
Chunk: 0

Company: COMERICA INC
Filing Date: 2025-08-05
Form: 424B5
Chunk 0
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Filed Pursuant to Rule 424(b)(5)
Registration No. 333-277000 PROSPECTUS SUPPLEMENT (To Prospectus dated February 9, 2024) Comerica Incorporated 16,000,000 Depositary Shares, Each Representing a 1/40th Interest in a Share of 6.875% Fixed-Rate Reset Non-CumulativePerpetual Preferred Stock, Series B We are offering 16,000,000 depositary shares, each representing a 1/40th ownership interest in a share of 6.875% Fixed-Rate Reset Non-CumulativePerpetual Preferred Stock, Series B, without par value, with a liquidation preference of $1,000 per share (equivalent to $25 per depositary share) (the “Series B Preferred Stock”). The depositary shares are represented by depositary receipts. As a holder of depositary shares, you will be entitled to all proportional rights and preferences of the Series B Preferred Stock (including dividend, voting, redemption and liquidation rights). You must exercise such rights through the depositary. We will pay dividends on the Series B Preferred Stock, when, as, and if declared by our board of directors or a duly authorized committee of our board of directors. Dividends will accrue on a non-cumulativebasis and will be payable quarterly in arrears on the 1 stday of January, April, July and October of each year, commencing on January 1, 2026 (long first dividend period). Dividends will accrue (i) from the date of original issue to, but excluding, October 1, 2030 at a fixed rate per annum of 6.875%, and (ii) from, and including, October 1, 2030, during each reset period, at a rate per annum equal to the five-year treasury rate as of the most recent reset determination date (as described elsewhere in this prospectus supplement) plus 3.125%. Payment of dividends on the Series B Preferred Stock is subject to certain legal, regulatory and other restrictions as described elsewhere in this prospectus supplement. Dividends on the Series B Preferred Stock will not be cumulative. If our board of 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