Ownership Submission
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
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(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)

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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.

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