Sec Form 4 Filing - Callahan Don @ CITIGROUP INC - 2016-01-20

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 Callahan Don 2. Issuer Name and Ticker or Trading Symbol CITIGROUP INC [ C] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Head of Operations&Technology (Last) (First) (Middle) C/O CITIGROUP INC. CORPORATE LAW DEPT., 601 LEXINGTON AVENUE 19TH FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 01/20/2016 (Street) NEW YORK, NY10022 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 01/20/2016 F 22,330.55 ( 1 ) D $ 40.2335 255,642.35 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 Performance Share Unit ( 2 ) 01/20/2016 A 32,456.98 02/19/2016( 2 ) 02/19/2016( 2 ) Common Stock 32,456.98 $ 0 32,456.98 ( 2 ) D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Callahan Don C/O CITIGROUP INC. CORPORATE LAW DEPT. 601 LEXINGTON AVENUE 19TH FLOOR NEW YORK, NY10022 Head of Operations&Technology Signatures Don Callahan by Joseph B. Wollard, Attorney-in-Fact 01/22/2016 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Withholding of shares of common stock to satisfy tax withholding obligations in connection with the vesting of previously awarded stock. ( 2 )On February 19, 2013 the Reporting Person received from the Issuer a target award of 47,801.15 Performance Share Units ("PSUs"), subject to increase up to 150%, or 71,701.73 PSUs, and decrease to zero PSUs, based on (i) the Issuer's average return on assets over the three-year period ending on December 31, 2015 (the "Performance Period") and (2) the Issuer's total shareholder return relative to the total shareholder return of certain of its peer financial services companies during the Performance Period. Based on the adjustments described above, the Reporting Person is entitled to receive 32,456.98 PSUs. Each PSU is payable only in cash expected to be delivered on February 19, 2016, and is equivalent to the cash value of the average high and low price of one share of the Issuer's common stock on January 20, 2016, plus dividends declared on equivalent shares of the Issuer's common stock from December 31, 2012 through February 19, 2016.

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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