Company: AIZ
Filing Date: 2025-08-15
Form Type: 424B5
Source: 0001193125-25-181851
Chunk: 91

Company: ASSURANT, INC.
Filing Date: 2025-08-15
Form: 424B5
Chunk 91
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 not monitor and are not responsible for the policies or       
 actions or records of ownership interests of any of those intermediaries, including any delay in any payments, transfers, notices or other communications to you.                                                                                         |

Holder’s Option to Obtain a Non-GlobalSecurity: Special Situations When a Global Security Will Be Terminated If we issue any series of securities in book-entry form but we choose to give the beneficial owners of that series the right to obtain non-globalsecurities, any beneficial owner entitled to obtain non-globalsecurities may do so by following the applicable procedures of the depositary, any transfer agent or registrar for that series and that owner’s bank, broker or other financial institution through which that owner holds its beneficial interest in the securities. If you are entitled to request a non-globalcertificate and wish to do so, you will need to allow sufficient lead time to enable us or our agent to prepare the requested certificate. In addition, in a few special situations described below, a global security will be terminated and interests in it will be exchanged for certificates in non-globalform representing the securities it represented. After that exchange, the choice of whether to hold the securities directly or in street name will be up to the investor. Investors must consult their own banks, brokers or other financial institutions to find out how to have their interests in a global security transferred on termination to their own names, so that they will be holders. We have described the rights of holders and street name investors above under “— Who is the Legal Owner of a Registered Security?” The special situations for termination of a global security are as follows:

| • |     | if the depositary notifies us that it is unwilling, unable or no longer qualified to continue as depositary for 
 that global security and we do not appoint another institution to act as depositary within 60 days;             |

| • |     | if we notify the trustee, warrant agent, unit agent or other agent, as applicable, that we wish to terminate that 
 global security; or                                                                                               |

| • |     | in the case of a global security representing debt securities or warrants issued under an indenture, if an event 
 of default has occurred with regard to these debt securities or warrants and has not been cured or waived.       |

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If a global security is terminated, only the depositary, and not we, the trustee for any
debt securities, the warrant agent for any warrants, the unit agent for any units or any other third party retained to provide securities-related services