Company: AIZ
Filing Date: 2025-08-15
Form Type: 424B5
Source: 0001193125-25-181851
Chunk: 98

Company: ASSURANT, INC.
Filing Date: 2025-08-15
Form: 424B5
Chunk 98
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upon for us by Davis Polk & Wardwell LLP, New York, New York.

EXPERTS

The financial statements and management’s assessment of the effectiveness of internal control over financial reporting (which is included
in Management’s Annual Report on Internal Control over Financial Reporting) incorporated in this Prospectus by reference to the Annual Report on Form 10-K for the year ended December 31, 2022 have
been so incorporated in reliance on the report of PricewaterhouseCoopers LLP, an independent registered public accounting firm, given on the authority of said firm as experts in auditing and accounting.

47

$300,000,000

5.550% Senior Notes due 2036

PROSPECTUS SUPPLEMENT

Joint Book-Running Managers

Barclays

Goldman Sachs & Co. LLC

J.P. Morgan

KeyBanc Capital Markets

US Bancorp

Wells Fargo Securities

Co-Managers

BBVA

Citigroup

Lloyds Securities

Morgan Stanley

August 14, 2025