X0508 4 2023-08-14 0 0001267238 ASSURANT, INC. AIZ 0001234327 DZIADZIO RICHARD S C/O ASSURANT, INC. 260 INTERSTATE NORTH CIRCLE SE ATLANTA GA 30339 0 1 0 0 EVP and CFO 1 Common Stock 2023-08-14 4 S 0 1417 142.7418 D 54476 D Common Stock 2023-08-14 4 S 0 2583 143.4427 D 51893 D All of the sales set forth on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 23, 2023. The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $142.050 through $143.03, inclusive. The reporting person undertakes to provide Assurant, Inc., any security holder of Assurant, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote to Form 4. The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $143.12 through $143.77, inclusive. The reporting person undertakes to provide Assurant, Inc., any security holder of Assurant, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote to Form 4. Includes restricted stock units. Lisa Richter, Attorney-in-Fact 2023-08-15