Company: AIZ
Filing Date: 2025-08-15
Form Type: 424B5
Source: 0001193125-25-181851
Chunk: 85

Company: ASSURANT, INC.
Filing Date: 2025-08-15
Form: 424B5
Chunk 85
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 to the registration statement that contains this prospectus or as an exhibit to a current report on Form 8-K. We may issue units comprised of one or more of the other securities described in this prospectus in any combination. Each unit may also include debt obligations of third parties, such as U.S. Treasury securities. Each unit will be issued so that the holder of the unit is also the holder of each security included in the unit. Thus, the holder of a unit will have the rights and obligations of a holder of each included security. The unit agreement under which a unit is issued may provide that the securities included in the unit may not be held or transferred separately, at any time or at any time before a specified date. The applicable prospectus supplement may describe:

| • |     | the designation and terms of the units and of the securities comprising the units, including whether and under 
 what circumstances those securities may be held or transferred separately;                                     |

| • |     | any provisions for the issuance, payment, settlement, transfer or exchange of the units or of the securities 
 comprising the units;                                                                                        |

| • |     | whether the units will be issued in fully registered or global form; and |

| • |     | if applicable, a discussion of certain U.S. federal income tax considerations. |

37

LEGAL OWNERSHIP AND BOOK-ENTRY ISSUANCE

References to Assurant”, the “Company”, “us”, “we” or “our” in this section means Assurant, Inc.
In this section, we describe special considerations that will apply to registered securities issued in global — i.e., book-entry — form. First we describe the difference between legal ownership and indirect ownership of registered
securities. Then we describe special provisions that apply to global securities.

Who is the Legal Owner of a Registered Security?

Each debt security, warrant, stock purchase contract, unit or share of preferred or common stock in registered form will be represented either
by a certificate issued in definitive form to a particular investor or by one or more global securities representing such securities. We refer to those who have securities registered in their own names, on the books that we or the trustee, warrant
agent or other agent maintain for this purpose, as the “holders” of those securities. These persons are the legal holders of the securities. We refer to those who, indirectly through others, own beneficial interests in securities that are
not registered in their own names as indirect owners of those securities. As we discuss below, indirect owners