Sec Form 4 Filing - Pyne Christopher W @ Unum Group - 2023-03-01

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 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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1. Name and Address of Reporting Person Pyne Christopher W 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, Group Benefits (Last) (First) (Middle) 1 FOUNTAIN SQUARE 3. Date of Earliest Transaction (MM/DD/YY) 03/01/2023 (Street) CHATTANOOGA, TN37402 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 03/01/2023 F 1,205 ( 1 ) D $ 45.57 49,197 ( 2 ) D Common Stock 03/01/2023 F 844 ( 3 ) D $ 45.57 48,353 ( 4 ) D Common Stock 03/01/2023 F 813 ( 5 ) D $ 45.57 47,540 ( 6 ) D Common Stock 03/01/2023 A 8,123 ( 7 ) A $ 0 55,663 ( 8 ) D

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Pyne Christopher W 1 FOUNTAIN SQUARE CHATTANOOGA, TN37402 EVP, Group Benefits Signatures /s/ Jullienne, J. Paul, Attorney-in-Fact 03/03/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Shares withheld to satisfy tax withholding obligation applicable to the vesting of 4,104 stock-settled RSUs (as defined in footnote (2) below). ( 2 )Includes 14,227 restricted stock units, 8,205 stock success units, and 26,765 shares of common stock. All restricted stock units ("stock-settled RSUs") and stock success units ("SSUs") may be settled, on a 1-for-1 basis, only in shares of common stock. Fractional amounts have been rounded to the nearest whole number. ( 3 )Shares withheld to satisfy tax withholding obligation applicable to the vesting of 2,873 stock-settled RSUs. ( 4 )Includes 11,354 stock-settled RSUs, 8,205 SSUs, and 28,794 shares of common stock. Fractional amounts have been rounded to the nearest whole number. ( 5 )Shares withheld to satisfy tax withholding obligation applicable to the vesting of 2,770 stock-settled RSUs. ( 6 )Includes 8,584 stock-settled RSUs, 8,205 SSUs, and 30,751 shares of common stock. Fractional amounts have been rounded to the nearest whole number. ( 7 )All are stock-settled RSUs, which vest in three equal annual installments beginning on March 1, 2024. ( 8 )Includes 16,707 stock-settled RSUs, 8,205 SSUs, and 30,751 shares of common stock. Fractional amounts have been rounded to the nearest whole number.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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