FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: January 31, 2005 Estimated average burden hours per response... 0.5

(Print or Type Responses)

1. Name and Address of Reporting Person * BEST ROBERT O   2. Issuer Name and Ticker or Trading Symbol Unum Group [UNM] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) EVP, COO, Unum US (Last) (First) (Middle) 1 FONTAIN SQUARE 3. Date of Earliest Transaction (Month/Day/Year) 08/14/2009 (Street) CHATTANOOGA, TN 37402 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 08/14/2009   M   23,590 A $ 13.719 222,205 (1) D   Common Stock 08/14/2009   S   18,335 D $ 21.331 (2) 203,870 (3) D   Common Stock 08/18/2009   S   5,000 D $ 20.9917 (4) 198,870 (5) D   Common Stock               3,902 I 401(k)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.		SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Employee Stock Option (right to buy)

$ 13.719

08/14/2009

M

7,784

02/24/2001

02/25/2010

Common Stock

7,784

$ 0

15,806

D

Employee Stock Option (right to buy)

$ 13.719

08/14/2009

M

7,785

02/25/2002

02/25/2010

Common Stock

7,785

$ 0

8,021

D

Employee Stock Option (right to buy)

$ 13.719

08/14/2009

M

8,021

02/25/2003

02/25/2010

Common Stock

8,021

$ 0

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
BEST ROBERT O 1 FONTAIN SQUARE CHATTANOOGA, TN 37402			EVP, COO, Unum US

Signatures

Parrott, Christopher, A., Attorney in fact		08/18/2009
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	73,245 restricted stock units (including dividend equivalent rights), 9,103 shares of restricted stock, 4,678 shares in the company ESPP, and 135,179 shares held outside any plan.
(2)	Reflects weighted average price for multiple sale transactions ranging in price from $21.32 per share to $21.34 per share, inclusive. The reporting person undertakes to provide to Unum Group, any security holder of Unum Group, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2) and (4) to this Form 4.
(3)	Includes 73,245 restricted stock units (including dividend equivalent rights), 9,103 shares of restricted stock, 4,678 shares in the company ESPP, and 116,844 shares held outside any plan.
(4)	Reflects weighted average price for multiple sale transactions ranging in price from $20.9901 per share to $20.992 per share, inclusive.
(5)	Includes 73,245 restricted stock units (including dividend equivalent rights), 9,103 shares of restricted stock, 4,678 shares in the company ESPP, and 111,844 shares held outside any plan.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.