Document

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

_____________________

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934



Date of report (Date of earliest event reported)	April 21, 2017

Marsh & McLennan Companies, Inc.

(Exact Name of Registrant as Specified in its Charter)



Delaware	1-5998	36-2668272
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)



1166 Avenue of the Americas, New York, NY	10036
(Address of Principal Executive Offices)	(Zip Code)



Registrant’s telephone number, including area code	(212) 345-5000

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:



	o	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)



	o	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)



	o	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))



	o	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).



	Emerging growth company o
	If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Item 7.01 Regulation FD Disclosure

In connection with a civil competition investigation that the Financial Conduct Authority is undertaking into the aviation insurance and reinsurance sector, the FCA recently conducted an on-site inspection at Marsh Limited's office in London. The FCA indicated that it had reasonable grounds for suspecting that Marsh Limited and others have been sharing competitively sensitive information within the aviation (re)insurance sector. Marsh is cooperating fully with the FCA's ongoing investigation and is conducting its own review with the assistance of outside counsel.

For purposes of Section 18 of the Securities Exchange Act of 1934, this information is deemed furnished and not filed.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.



	MARSH & McLENNAN COMPANIES, INC.

	By:	/s/ Carey Roberts
	Name:	Carey Roberts
	Title:	Deputy General Counsel, Chief Compliance Officer & Corporate Secretary

Date: April 21, 2017