Company: AIZ
Filing Date: 2025-08-15
Form Type: 424B5
Source: 0001193125-25-181851
Chunk: 47

Company: ASSURANT, INC.
Filing Date: 2025-08-15
Form: 424B5
Chunk 47
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 interest coupons, will be issued under our
senior debt indentures described below and will rank equally with all of our other unsecured and unsubordinated debt.

The subordinated
debt securities and, in the case of subordinated debt securities in bearer form, any related interest coupons, will be issued under our subordinated debt indenture described below and will be subordinate in right of payment to all of our
“senior indebtedness”, as defined in the subordinated debt indenture. Neither indenture limits our ability to incur additional unsecured indebtedness.

When we refer to “debt securities” in this prospectus, we mean both the senior debt securities and the subordinated debt securities
issued under the indentures (as defined below).

The Senior and Subordinated Debt Indentures

The senior debt securities are governed by documents called the “senior debt indentures” (the Senior Debt Indenture dated as of
February 18, 2004 between us and U.S. Bank Trust Company, National Association, successor to U.S. Bank National Association (as successor to SunTrust Bank), as trustee, which we refer to as the “2004 senior debt indenture”, and the
Indenture, dated as of March 28, 2013, between us and U.S. Bank Trust Company, National Association, successor to U.S. Bank National Association, as trustee, as amended by the First Supplemental Indenture, dated as of February 28, 2023,
between us and U.S. Bank Trust Company, National Association, as trustee, which we refer to as the “2013 senior debt indenture”), and the subordinated debt securities are governed by the Subordinated Indenture dated as of March 27,
2018 between us and U.S. Bank Trust Company, National Association, successor to U.S. Bank National Association, as trustee, which we refer to as the “subordinated debt indenture” (and together with the senior debt indentures, collectively,
the “indentures”). A number of provisions of the above-referenced three indentures are identical; however, the provisions relating to subordination are included only in the subordinated debt indenture and certain provisions described below
under “— Notices”, “— Modification and Waiver of the Debt Securities”, “— Reports”, “— Restrictive Covenants” and “— Events of Default” vary substantially among the
indentures.

Reference to the indenture or the trustee with respect to any debt