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): October 31, 2005 ALLMERICA FINANCIAL CORPORATION ------------------------------- (Exact name of registrant as specified in its charter) Delaware 1-13754 04-3263626 ------------------------ ------------------------ -------------------- (State or other jurisdic- (Commission File Number) (I.R.S. Employer tion of incorporation) Identification No.) 440 Lincoln Street, Worcester, Massachusetts 01653 -------------------------------------------------- (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (508) 855-1000 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: [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17CFR 240.14a-12) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17CFR 240.13e-4(c)) Item 7.01 Regulation FD Disclosure. The following information is being furnished under Item 7.01 - Regulation FD Disclosures. Such information, including the exhibits attached hereto, shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any other filing under the Securities Act of 1933, as amended. On October 31, 2005, Allmerica Financial Corporation issued a press release announcing that, effective December 1, 2005, it will change its name to "The Hanover Insurance Group, Inc". The press release is furnished as Exhibit 99.1 to this Current Report and is hereby incorporated by reference in this Item 7.01. Item 9.01 Financial Statements and Exhibits. (a) Not applicable. (b) Not applicable. (c) Exhibits. The following exhibit is furnished herewith. Exhibit 99.1 Press Release, dated October 31, 2005, Allmerica Financial Corporation announced that, effective December 1, 2005, it will change its name to "The Hanover Insurance Group, Inc.". 2 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. Allmerica Financial Corporation ------------------------------- (Registrant) Date: October 31, 2005 By: /s/ Edward J. Parry III ----------------------- Edward J. Parry III Chief Financial Officer, Executive Vice President, Principal Accounting Officer and Director 3