$1.7 Billion Exelon Corporation Public Offering of Notes

Served as underwriters' counsel to Barclays, BofA Securities, Citigroup, J.P. Morgan and Morgan Stanley, as joint book-running managers, in connection with the registered public offering of $1.7 billion of Notes by Exelon Corporation comprised of $650 million 5.150% Notes due 2029, $650 million 5.450% Notes due 2034, and $400 million 5.600% Notes due 2053.