ADDENDUM TO THE PROSPECTUS SUPPLEMENT DATED JUNE 12, 2009
(To Prospectus dated April 11, 2007)
The Hartford Financial Services Group, Inc.
$900,000,000
Common Stock
This addendum to the prospectus supplement and accompanying prospectus relates to the offer
and sale from time to time of shares of our common stock, par value $0.01 per share, through
Goldman, Sachs & Co., as our sales agent, or to Goldman, Sachs & Co., for resale over a period of
time and from time to time in transactions at then-current market prices, pursuant to an equity
distribution agreement. On August 5, 2009, we and Goldman, Sachs & Co. entered into an amendment
to the equity distribution agreement, the sole purpose of which was to increase the maximum
aggregate offering price of the shares of our common stock that can be offered and sold pursuant to
the equity distribution agreement from $750,000,000 to $900,000,000. As a result, all references
to $750,000,000 in the prospectus supplement dated June 12, 2009 shall be deleted and substituted
with $900,000,000 in lieu thereof. The maximum number of shares to be sold in the offering
remains 60,000,000 as disclosed in the prospectus supplement dated June 12, 2009.
We will pay Goldman, Sachs & Co. a commission, or allow a discount, as the case may be, in
each case equal to (a) 1.50% in respect of the sales generating the first $500,000,000 of the gross
proceeds of the shares sold pursuant to this prospectus addendum and the prospectus supplement, (b)
1.375% in respect of the sales generating the next $250,000,000 of such gross proceeds thereafter
and (c) 1.25% of such gross proceeds from sales thereafter. The net proceeds we receive from the
sale of the shares to which this prospectus addendum and the prospectus supplement relate will be
the gross proceeds received from such sales less those commissions or discounts and any other costs
we may incur in issuing the shares. See Plan of Distribution for further information.
Investing in the shares of our common stock involves risks. See Risk Factors on page S-2 of
the prospectus supplement.
Neither the Securities and Exchange Commission nor any state securities commission has
approved or disapproved of these securities or passed upon the adequacy or accuracy of this
prospectus addendum, the prospectus supplement and the accompanying prospectus. Any representation
to the contrary is a criminal offense.
Goldman, Sachs & Co.
Prospectus Addendum dated August 5, 2009