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
OMB APPROVAL
OMB Number: 3235-0104
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
  Gerspach John C
2. Date of Event Requiring Statement (Month/Day/Year)
03/21/2005
3. Issuer Name and Ticker or Trading Symbol
CITIGROUP INC [C]
(Last)
(First)
(Middle)
C/O CORPORATE LAW DEP'T, CITIGROUP INC., 425 PARK AVENUE
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Controller and CAO
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 105,777.5
D
 
Common Stock 79
I
By Spouse

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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.

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) 01/20/2002 01/20/2008 Common Stock 28,258.87 $ 22.5004 D  
Employee Stock Options (Right to Buy) 07/12/2004 02/12/2009 Common Stock 7,999.2 $ 32.05 D  
Employee Stock Options (Right to Buy) 07/12/2005 02/12/2009 Common Stock 7,999.2 $ 32.05 D  
Employee Stock Options (Right to Buy) 07/12/2006 02/12/2009 Common Stock 8,001.6 $ 32.05 D  
Employee Stock Options (Right to Buy) 07/20/2005 01/20/2010 Common Stock 5,332.8 $ 49.5 D  
Employee Stock Options (Right to Buy) 07/20/2006 01/20/2010 Common Stock 5,332.8 $ 49.5 D  
Employee Stock Options (Right to Buy) 07/20/2007 01/20/2010 Common Stock 5,334.4 $ 49.5 D  
Employee Stock Options (Right to Buy) 01/16/2000 01/16/2006 Common Stock 21,348.55 $ 12.3577 D  
Employee Stock Options (Right to Buy) 01/21/2001 01/21/2007 Common Stock 32,676.34 $ 20.6118 D  
Employee Stock Options (Right to Buy) 07/18/2004 04/18/2010 Common Stock 4,574.88 $ 41.4452 D  
Employee Stock Options (Right to Buy) 07/18/2005 04/18/2010 Common Stock 4,574.7 $ 41.4452 D  
Employee Stock Options (Right to Buy) 07/16/2004 01/16/2011 Common Stock 3,216.6 $ 49.5477 D  
Employee Stock Options (Right to Buy) 07/16/2005 01/16/2011 Common Stock 3,216.6 $ 49.5477 D  
Employee Stock Options (Right to Buy) 07/16/2006 01/16/2011 Common Stock 3,216.6 $ 49.5477 D  
Employee Stock Options (Right to Buy) 07/13/2004 02/13/2012 Common Stock 3,860.84 $ 42.1097 D  
Employee Stock Options (Right to Buy) 07/13/2005 02/13/2012 Common Stock 3,859.92 $ 42.1097 D  
Employee Stock Options (Right to Buy) 07/13/2006 02/13/2012 Common Stock 3,859.92 $ 42.1097 D  
Employee Stock Options (Right to Buy) 07/13/2007 02/13/2012 Common Stock 3,859.92 $ 42.1097 D  
Employee Stock Options (Right to Buy) 12/06/2000 11/02/2008 Common Stock 9,848.5 $ 46.4728 D  
Employee Stock Options (Right to Buy) 05/07/2001 11/02/2008 Common Stock 9,973.6 $ 51.1799 D  
Employee Stock Options (Right to Buy) 05/05/2002 11/02/2008 Common Stock 10,237.36 $ 43.7699 D  
Employee Stock Options (Right to Buy) 04/09/2004 11/02/2008 Common Stock 9,500 $ 47.56 D  
Employee Stock Options (Right to Buy) 05/03/2004 11/02/2008 Common Stock 9,806 $ 47.4 D  
Employee Stock Options (Right to Buy) 07/06/2004 04/18/2010 Common Stock 12,331 $ 49.79 D  
Employee Stock Options (Right to Buy) 07/23/2004 02/13/2012 Common Stock 3,433 $ 50.69 D  
Employee Stock Options (Right to Buy) 07/16/2002 01/16/2011 Common Stock 3,216.6 $ 49.5477 D  
Employee Stock Options (Right to Buy) 07/16/2003 01/16/2011 Common Stock 3,216.6 $ 49.5477 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Gerspach John C
C/O CORPORATE LAW DEP'T, CITIGROUP INC.
425 PARK AVENUE
NEW YORK, NY 10043
      Controller and CAO  

Signatures

John C. Gerspach by Glenn S. Gray, Attorney-in-Fact 03/31/2005
**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).

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.