What is the main purpose of this 8-K filing?

The main purpose of this 8-K filing is to report that Exelon Corporation and Constellation Energy Group, Inc. have submitted an application to the Maryland Public Service Commission (MPSC) for approval of their proposed merger.

What are the key regulatory hurdles for the Exelon-Constellation merger mentioned in this filing?

This filing specifically mentions the application to the Maryland Public Service Commission (MPSC). It also notes that filings have been made with the Nuclear Regulatory Commission, the New York State Public Service Commission, the Public Utility Commission of Texas, and the Federal Energy Regulatory Commission, indicating a broad range of regulatory approvals required.

What risks are associated with the proposed merger, according to this filing?

The filing outlines several potential risks, including the inability to obtain shareholder or regulatory approvals, delays or adverse conditions imposed by regulators, issues with integrating the businesses, failure to achieve expected synergies, unexpected costs or liabilities, potential adverse effects from divestitures, and general industry or economic factors. Investors are urged to review the detailed cautionary statements and upcoming filings for a comprehensive understanding of these risks.

Where can investors find more detailed information about the merger?

Investors are strongly encouraged to read the joint proxy statement/prospectus that Exelon intends to file on Form S-4 once available. This document, along with other SEC filings from Exelon and Constellation (accessible via the SEC website at www.sec.gov), will contain important information about the merger.

EXC 8-K SEC Disclosure — May 25, 2011

Summary

This Form 8-K filing by Exelon Corporation on May 25, 2011, primarily concerns an "Other Event" related to the ongoing proposed merger with Constellation Energy Group, Inc. The key development reported is the filing of an application for approval of the merger by the Maryland Public Service Commission (MPSC). This represents a step forward in the regulatory approval process for the significant transaction, which was initially announced on April 28, 2011. Investors should note that this filing, along with others made to various regulatory bodies like the Nuclear Regulatory Commission and state public utility commissions, are crucial for the completion of the merger. The document also includes standard cautionary statements regarding forward-looking information, highlighting potential risks and uncertainties that could impact the successful integration and future performance of the combined entity. Investors are urged to review upcoming filings, particularly the joint proxy statement/prospectus on Form S-4, for comprehensive details on the merger and its implications.

Key Highlights

1Exelon Corporation and Constellation Energy Group, Inc. have filed an application with the Maryland Public Service Commission (MPSC) seeking approval for their proposed merger.
2This MPSC filing is a significant step in the regulatory approval process for the merger, announced on April 28, 2011.
3The companies have also made other filings with various regulatory bodies, including the Nuclear Regulatory Commission, New York State Public Service Commission, Public Utility Commission of Texas, and Federal Energy Regulatory Commission, in support of the merger.
4The filing includes a press release (Exhibit 99.1) related to the MPSC filing.
5The document contains detailed "Cautionary Statements Regarding Forward-Looking Information," outlining numerous risks and uncertainties associated with the merger and the integration of the two companies.
6Investors are advised to consult future SEC filings, especially the forthcoming joint proxy statement/prospectus on Form S-4, for more in-depth information regarding the merger and its potential impact.
7The filing also provides information on how to access SEC filings and related documents for both Exelon and Constellation.

EXELON CORP 8-K Report, Corporate Update (May 25, 2011)

Summary

Key Highlights

Frequently Asked Questions