NEW YORK, February 6, 2004—Assurant, Inc. (NYSE: AIZ) today announced that the underwriters of its previously announced initial public offering of common stock have exercised in full their over-allotment option to purchase an additional 12,000,000 shares of common stock. This completes the Company's initial public offering of common stock whereby a total of 92,000,000 shares are being sold at a price of $22 per share.

All of the common stock in the IPO is being sold by the selling stockholder, Fortis Insurance N.V. Assurant will not receive any of the proceeds from the shares being sold.

As a result of the underwriters exercising their over-allotment option in full, upon settlement, Fortis will own approximately 35% of Assurant's common stock.

Morgan Stanley is the sole book running manager for the offering. Morgan Stanley, Credit Suisse First Boston and Merrill Lynch & Co. are joint lead underwriters for the offering. Citigroup, Goldman, Sachs & Co. and JPMorgan are senior co-managers for the offering. Bear, Stearns & Co. Inc., Cochran, Caronia & Co., Fortis Investment Services LLC, McDonald Investments Inc., Raymond James and SunTrust Robinson Humphrey are junior co-managers for the offering.

The public offering is being made by means of a final prospectus a copy of which may be obtained from Morgan Stanley Prospectus Department, 1585 Broadway, New York, NY 10036, 212-761-4000.

This press release shall not constitute an offer to sell or a solicitation of an offer to buy, nor shall there be any sale of these securities in any state or jurisdiction where such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of such state or jurisdiction.