Additional
Information and Where to Find It
3
This communication does not constitute an offer to sell or the solicitation of an offer to buy any
securities, or a solicitation
of any vote or approval, nor shall there be any sale of
securities in any jurisdiction in which such offer, solicitation or sale
would be unlawful
prior to registration or qualification under the securities laws of any such jurisdiction. Exelon intends to
file with the SEC a registration statement on Form S-4 that will include a joint proxy
statement/prospectus and other
relevant documents to be mailed by Exelon and Constellation to
their respective security holders in connection with the
proposed merger of Exelon and
Constellation. WE URGE INVESTORS AND SECURITY HOLDERS TO READ THE
JOINT PROXY
STATEMENT/PROSPECTUS AND ANY OTHER RELEVANT DOCUMENTS WHEN THEY BECOME
AVAILABLE, BECAUSE THEY
WILL CONTAIN IMPORTANT INFORMATION about Exelon, Constellation and the
proposed merger.
Investors and security holders will be able to obtain these materials (when they are available) and
other documents filed with the SEC free of charge at the SEC's website, www.sec.gov. In
addition, a copy of the joint
proxy statement/prospectus (when it becomes available) may be
obtained free of charge from Exelon Corporation,
Investor Relations, 10 South Dearborn Street,
P.O. Box 805398, Chicago, Illinois 60680-5398, or from Constellation
Energy Group, Inc.,
Investor Relations, 100 Constellation Way, Suite 600C, Baltimore, MD 21202. Investors and security
holders may also read and copy any reports, statements and other information filed by Exelon, or
Constellation, with the
SEC, at the SEC public reference room at 100 F Street, N.E.,
Washington, D.C. 20549. Please call the SEC at 1-800-
SEC-0330 or visit the
SECs website for further information on its public reference room.
Participants in the Merger Solicitation
Exelon, Constellation, and their respective directors, executive officers and certain other members of
management and
employees may be deemed to be participants in the solicitation of proxies in
respect of the proposed transaction.
Information regarding Exelons directors and
executive officers is available in its proxy statement filed with the SEC by
Exelon on March
24, 2011 in connection with its 2011 annual meeting of shareholders, and information regarding
Constellations directors and executive officers is available in its proxy statement filed with
the SEC by Constellation on
April 15, 2011 in connection with its 2011 annual meeting of
shareholders. Other information regarding the participants in
the proxy solicitation and a
description of their direct and indirect interests, by security holdings or otherwise, will be
contained in the joint proxy statement/prospectus and other relevant materials to be filed with the
SEC when they become
available.
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