UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, DC  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): December 31, 2011

MONTPELIER RE HOLDINGS LTD.

(Exact Name of Registrant as Specified in Its Charter)

Montpelier House

94 Pitts Bay Road

Pembroke HM 08

Bermuda

(Address of Principal Executive Offices)

Registrant’s telephone number, including area code: (441) 296-5550

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))

Item 8.01.                                          Other Events.

On December 31, 2011, Montpelier Re Holdings Ltd. (the “Company”) completed its previously announced sale of Montpelier U.S. Insurance Company (“MUSIC”) to Selective Insurance Group, Inc. (“Selective”).

The ancillary MUSIC sale agreements contain customary representations and warranties as well as covenants by each of the parties. In addition, the Company has agreed to indemnify Selective for any loss development and any other obligations of MUSIC that relate to business written prior to the date of closing.

The sale of MUSIC did not constitute the sale of a significant amount of assets by the Company as defined under 17 C.F.R. Section 210.11-01(d) and Section 210.11-01(b).

Item 9.01.                                          Financial Statements and Exhibits.

None.

SIGNATURE

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.

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