Company: AIZ
Filing Date: 2025-08-15
Form Type: 424B5
Source: 0001193125-25-181851
Chunk: 54

Company: ASSURANT, INC.
Filing Date: 2025-08-15
Form: 424B5
Chunk 54
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 or
other preferential rights in that property over other lenders, including the holders of the senior debt securities. We have promised in our senior debt indentures to limit these preferential rights on voting stock of any Restricted Subsidiary (as
defined in the 2013 senior debt indenture) or Principal Subsidiary (as

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defined in the 2004 senior debt indenture) as discussed under “— Restrictive Covenants — Limitation on Liens on Stock of Restricted and Principal Subsidiaries and on Issuance or Disposition of Stock of Restricted and Principal Subsidiaries”. If a merger or other transaction would create any liens on the voting stock of our Restricted Subsidiaries (as defined in the 2013 senior debt indenture) or Principal Subsidiaries (as defined in the 2004 senior debt indenture), as applicable, we must comply with that restrictive covenant. Either the liens will be permitted under the covenant, or we would be required to grant an equivalent or higher-ranking lien on the same voting stock to the holders of the senior debt securities. Modification and Waiver of the Debt Securities There are four types of changes we can make to the indenture and the debt securities issued under that indenture. Changes Requiring Approval of All Holders. First, there are changes that cannot be made to the indenture or the debt securities without specific approval of each holder of a debt security affected in any material respect by the change under a particular debt indenture. Affected debt securities may be all or less than all of the debt securities issued under that debt indenture or all or less than all of the debt securities of a series. Following is a list of those types of changes under the 2004 senior debt indenture:

| • |     | changing the fixed maturity; |

| • |     | reducing the principal amount; |

| • |     | reducing the rate of or changing the time of payment of interest, reducing any premium payable upon the 
 redemption or changing the time at which the debt security may be redeemed or purchased;                |

| • |     | reducing the percentage of debt securities referred to above, the holders of which are required to consent to any 
 amendment, supplement or waiver;                                                                                  |

| • |     | waiving a default or event of default in the payment of principal of or interest or additional interest, if any,                                                                                                                                  
 on the debt securities (except a rescission of acceleration of the debt securities