Exelon Corporation and Constellation Energy announced that they have completed their merger. Effective immediately upon completion of the initial merger and as contemplated by the merger agreement, John W. Rowe resigned as chairman and chief executive officer of Exelon, and the board of Directors of Exelon appointed Christopher M. Crane, formerly president and chief operating officer of Exelon, to the position of president and chief executive officer of Exelon. On March 12, 2012, in connection with the initial merger, Matthew F. Hilzinger resigned as senior vice president, chief financial officer and treasurer of Exelon, and was appointed by the board to the position of executive vice president and chief integration officer. At the same time, the board appointed Jonathan W. Thayer as executive vice president and chief financial officer of Exelon. Prior to his appointment as executive vice president and chief financial officer of Exelon, Mr. Thayer, age 40, served as vice president and managing director, corporate strategy and development, of constellation, treasurer of constellation, senior vice president and chief financial officer of Baltimore Gas and Electric Company, and senior vice president and chief financial officer of Constellation. The board appointed Ann C. Berzin, Christopher M. Crane, Yves C. de Balmann, Robert Lawless and Mayo A. Shattuck III to the board. The board appointed the newly elected directors to the committees of the board as AnnC.Berzin: Audit Committee, Energy Delivery Oversight Committee, Investment Oversight Committee, ChristopherM.Crane: Generation Oversight Committee, Yves C. de Balmann: Audit Committee, Risk Oversight Committee and Robert Lawless: Corporate Governance Committee, Compensation Committee. The board accepted the resignations of John M. Palms as director as a result of his scheduled retirement from the Board and John W. Rowe as director and chairman of the board and chief executive officer. As contemplated by the merger agreement, Mayo A. Shattuck III was concurrently appointed as chairman of the board and became an employee of Exelon serving in the capacity of executive chairman with the duties and responsibilities prescribed for the executive chairman in the merger agreement. Effective March 12, 2012, the company amended certain provisions of its Amended and Restated Bylaws. Section 5.07 has been amended to provide that the Chairman of the Board shall preside at all meetings of the shareholders and the Board, except as otherwise provided by the Bylaws or by action of the Board. The former provision provided that the chairman of the Board shall preside at all meetings of the shareholders and the Board, except as otherwise provided by the Bylaws. Section 5.07 has also been amended to provide that the Chairman or Vice Chairman of the Board, if there is one, may, but need not be, an employee of Exelon, and may hold any other office as may be determined by the Board. Section 5.08 has been amended to provide that the general supervision afforded to the Chief Executive Officer over the business and operations of Exelon is subject only to the control of the Board, and that only the Board may assign the duties of the Chief Executive Officer, other than those duties otherwise provided for in Section 5.08. The former provision provided that the general supervision of the Chief Executive Officer over the business and operations of Exelon was subject to the control of the Board and the Chairman of the Board, and that the Board and the Chairman of the Board could assign the duties of the Chief Executive Officer, other than those duties otherwise provided for in Section 5.08. Section 5.09 has been amended to provide that the general supervision afforded to the President over the business and operations of Exelon is subject to the control of the Board and the Chief Executive Officer, as applicable, and that only the Board and the Chief Executive Officer, as applicable, may assign the duties of the President, other than those duties otherwise provided for in Section 5.09. The former provision provided that the general supervision of the President over the business and operations of Exelon was subject to the control of the Board, the Chairman of the Board, and the Chief Executive Officer, as applicable, and that the Board, the Chairman of the Board and the Chief Executive Officer could assign the duties of the President, other than those duties otherwise provided for in Section 5.09. The foregoing description of the amendments to the Bylaws does not purport to be complete and is subject to and qualified in its entirety by reference to the full text of the Bylaws, effective as of March 12, 2012.