MARSH & MCLENNAN COMPANIES, INC. — Director's Dealing 2010

Feb 25, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MARSH & MCLENNAN COMPANIES, INC. (MMC)
CIK: 0000062709
Period of Report: 2010-02-22

Reporting Person: Nadler David A (Vice Chairman, Office of CEO)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-02-22	Stock Options (Right to Buy)	$22.705	A	193299	Acquired	2020-02-21	Common Stock (193299)	Direct
2010-02-22	Restricted Stock Units	$	A	13764	Acquired		Common Stock (13764)	Direct

Footnotes

F1: These options vest in four equal annual installments on February 22, 2011, February 22, 2012, February 22, 2013, and February 22, 2014.

F2: The security converts to MMC common stock on a 1-for-1 basis.

F3: Not Applicable.

F4: These restricted stock units vest in three equal annual installments on February 15, 2011, February 15, 2012, and February 15, 2013.