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 (17 CFR 240.14a-12)

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

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

Article II, Sections 2 and 3 have been amended to provide the Board with explicit authority to postpone, reschedule or cancel meetings of shareholders previously scheduled by the Board, to contemplate the holding of meetings by means of remote communications and to provide that meeting notices may need to be given within time periods prescribed by law or Company documents, rather than anytime within 10 to 60 days before the meeting.

Article II, Section 4 has been amended to authorize the chairman of a meeting of shareholders to adjourn the meeting, whether or not a quorum is present, and to provide that shareholders present at a meeting at which a quorum is present may continue to transact business until adjournment, notwithstanding the withdrawal of enough shareholders to leave less than a quorum.

Article II, Section 5 has been amended to emphasize that the voting standard generally applicable to items of business brought before a meeting of shareholders does not apply to the election of directors, which is governed by Article III, Section 1 of the Bylaws.

Article II, Section 6 has been amended to clarify the persons to whom certain requirements apply for proper submission of notice of business to be brought before a meeting.

Article II, Section 9 has been amended to clarify that the chairman of a meeting of shareholders has authority to determine and declare whether any nominations or other business was not properly brought before the meeting, and to add a new subsection relating to the appointment of inspectors of election for meetings of shareholders.

Article III, Section 1 has been amended to define when director elections are contested, to conform with declassification amendments adopted under the Company’s Amended and Restated Certificate of Incorporation, to clarify the procedure for the submission of resignations for any incumbent director who does not receive the requisite vote in a non-contested election, and to provide that, under the voting standard that applies in the case of a non-contested election, broker non-votes, like abstentions, will not count as a vote “for” or “against” a director.

Article III, Section 2 has been amended to require that shareholder notices of proposed director nominees describe interests in any principal competitor of the Company and include the written consent of a proposed nominee to abide by the Company’s corporate governance and confidentiality policies, if elected, and not to enter into any voting agreement related to the Company.

Article III, Section 3 has been amended to indicate that vacancies and newly created directorships will be filled in the manner prescribed in the Amended and Restated Certificate of Incorporation.

Article III, Section 6 has been amended to clarify that, at any adjourned meeting at which a quorum is present, any business may be transacted which might have been transacted at the meeting as originally called.

Article III, Section 9 has been amended to remove a Board resolution requirement that no longer applies to the Company.

Article IV, Section 2 has been amended to clarify that the removal of an officer is without prejudice to the rights of the Company under any contract to which the officer is a party.

Article V, Section 5 has been amended to clarify procedures relating to the fixing of record dates by the Board, including with respect to separate record dates for determining shareholders entitled to notice of a meeting of shareholders and those entitled to vote at the meeting.

Article VIII, Sections 1 and 2 have been amended to clarify that the indemnification and advancement rights are to the fullest extent not prohibited by applicable law.

Article VIII, Section 5 has been amended to revise and clarify the procedure for indemnification and advancement claims.

In various sections of the Bylaws, amendments were made to more closely track applicable statutory language and to provide for gender neutrality and other non-substantive changes.

Nominee

Exhibits. The following exhibits are filed with this report:

Amended and Restated Certificate of Incorporation of Unum Group, effective May 23, 2013.

Amended and Restated Bylaws of Unum Group, effective May 23, 2013.

Annual Incentive Plan of Unum Group.

Unum Group

(Registrant)

Name:

Title:

Vice President, Transactions, SEC

and Corporate Secretary

Exhibit No.

Description