MARSH & MCLENNAN COMPANIES, INC. Quarterly Report (Amendment) for Q2 Ended Jun 30, 2010

Summary

Marsh & McLennan Companies, Inc. (MRSH) filed an amendment to its Form 10-Q for the quarter ended June 30, 2010. This amendment, filed on August 16, 2010, was primarily to furnish Exhibit 101, which contains XBRL formatted financial data. The original filing's disclosures remain unchanged by this amendment, meaning no new events or updates to prior information are presented. Investors should note that this filing does not alter the financial or operational information previously reported for the period ending June 30, 2010. As a large accelerated filer, Marsh & McLennan Companies, Inc. continues to meet its reporting obligations. The amendment serves a technical purpose related to XBRL compliance rather than reflecting new business developments or financial performance. Investors seeking the core financial results and management's discussion for the second quarter of 2010 should refer to the original Form 10-Q filing.

Key Highlights

• 1This filing is an amendment (10-Q/A) to the original Form 10-Q for the quarter ended June 30, 2010.
• 2The sole purpose of this amendment is to provide Exhibit 101, containing XBRL formatted financial information.
• 3This filing does not include any new disclosures, subsequent events, or modifications to the information in the original 10-Q filing.
• 4Marsh & McLennan Companies, Inc. is classified as a large accelerated filer.
• 5The company confirms it has filed all required reports for the preceding 12 months and has been subject to such requirements for the past 90 days.
• 6The amendment includes standard certifications from the CEO and CFO (Exhibits 31.1 and 31.2) and Section 1350 certifications (Exhibit 32.1), as well as an exhibit for the computation of the ratio of earnings to fixed charges (Exhibit 12.1).
• 7A stock purchase agreement with Altegrity, Inc. dated June 6, 2010, is listed as an exhibit (Exhibit 2.1).

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