Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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 *
  Klein Michael Stuart
2. Date of Event Requiring Statement (Month/Day/Year)
02/01/2007
3. Issuer Name and Ticker or Trading Symbol
CITIGROUP INC [C]
(Last)
(First)
(Middle)
CITIGROUP INC. CORPORATE LAW DEPARTMENT, 425 PARK AVENUE 2ND FLOOR
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Co-President Citigroup CIB
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

NEW YORK, NY 10043
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 Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 735,187.5
D
 
Common Stock 43,477
I
By GRATs

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Stock Options (Right to Buy) 06/30/1998 06/30/2007 Common Stock 202.64 (1) $ 19.82 D  
Employee Stock Options (Right to Buy) 06/30/1999 06/30/2008 Common Stock 139.38 (1) $ 28.65 D  
Employee Stock Options (Right to Buy) 07/12/2004 02/12/2009 Common Stock 57,000 (2) $ 32.05 D  
Employee Stock Options (Right to Buy) 06/30/2000 06/30/2009 Common Stock 124.37 (1) $ 32.22 D  
Employee Stock Options (Right to Buy) 07/13/2007 02/13/2012 Common Stock 21,444.9 $ 42.11 D  
Employee Stock Options (Right to Buy) 06/20/2002 11/02/2008 Common Stock 5,682.6 $ 46.63 D  
Employee Stock Options (Right to Buy) 12/19/2001 01/28/2008 Common Stock 2,814.18 $ 46.44 D  
Employee Stock Options (Right to Buy) 12/19/2001 11/02/2008 Common Stock 11,430.7 $ 46.44 D  
Employee Stock Options (Right to Buy) 09/25/2002 03/25/2008 Common Stock 3,248.8 $ 46.48 D  
Employee Stock Options (Right to Buy) 07/20/2005 01/20/2010 Common Stock 43,333.3 (2) $ 49.5 D  
Employee Stock Options (Right to Buy) 07/16/2002 01/16/2011 Common Stock 53,609.9 (1) $ 49.54 D  
Employee Stock Options (Right to Buy) 08/07/2005 04/18/2010 Common Stock 40,692 $ 49.78 D  
Employee Stock Options (Right to Buy) 11/01/2006 04/18/2010 Common Stock 10,420 $ 49.95 D  
Employee Stock Options (Right to Buy) 04/05/2007 02/13/2012 Common Stock 77,949 $ 51.03 D  
Employee Stock Options (Right to Buy) 06/12/2007 04/20/2009 Common Stock 16,429 $ 52.88 D  
Employee Stock Options (Right to Buy) 06/19/2007 03/25/2008 Common Stock 2,963 $ 55.44 D  
Employee Stock Options (Right to Buy) 06/19/2007 01/28/2008 Common Stock 15,542 $ 55.44 D  
Employee Stock Options (Right to Buy) 06/19/2007 11/02/2008 Common Stock 10,284 $ 55.44 D  
Employee Stock Options (Right to Buy) 06/19/2007 04/20/2009 Common Stock 31,884 $ 55.44 D  
Employee Stock Options (Right to Buy) 06/29/2007 03/25/2008 Common Stock 8,935 $ 55.88 D  
Employee Stock Options (Right to Buy) 06/29/2007 01/28/2008 Common Stock 20,572 $ 55.88 D  
Employee Stock Options (Right to Buy) 06/29/2007 04/20/2009 Common Stock 31,928 $ 55.88 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Klein Michael Stuart
CITIGROUP INC. CORPORATE LAW DEPARTMENT
425 PARK AVENUE 2ND FLOOR
NEW YORK, NY 10043
      Co-President Citigroup CIB  

Signatures

Michael Klein by Glenn S. Gray, Attorney-in-Fact 02/09/2007
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) The options vest in five annual installments beginning on the date indicated.
(2) The options vest in three annual installments beginning on the date indicated.

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

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