UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                  SCHEDULE 13G


                    Under the Securities Exchange Act of 1934

                               (Amendment No. 6)*


                                   Agco Corp.
                                (Name of Issuer)

                          COMMON STOCK, $.01 PAR VALUE
                         (Title of Class of Securities)

                                    001084102
                                 (CUSIP Number)


                                December 31, 2003
             (Date of Event Which Requires Filing of This Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

                                             [x]  Rule 13d-1(b)
                                             [ ]  Rule 13d-1(c)
                                             [ ]  Rule 13d-1(d)

    *The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class of
securities, and for any subsequent amendment containing information which would
alter the disclosures provided in a prior cover page.

    The information required in the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however, see
the Notes).





CUSIP NO. 001084102                   13G                     Page 2 of 10 pages

1   NAME OF REPORTING PERSON
    S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

    Forstmann-Leff Associates, LLC
    52-2169043

2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                (a) [ ]

                                                (b) [ ]

3   SEC USE ONLY

4   CITIZENSHIP OR PLACE OF ORGANIZATION

    Delaware

                    5  SOLE VOTING POWER
   NUMBER OF
     SHARES            1,269,780 shares
  BENEFICIALLY
    OWNED BY        6  SHARED VOTING POWER
      EACH
    REPORTING          2,139,494 shares
     PERSON
      WITH
                    7  SOLE DISPOSITIVE POWER

                       2,314,139 shares

                    8  SHARED DISPOSITIVE POWER

                       2,312,994 shares

9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    4,627,133 shares (includes shares beneficially owned by FLA Asset
    Management, LLC, FLA Advisers L.L.C., and Peconic Partners LLC)

10  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES

                                                    [ ]

11  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

    6.1%

12  TYPE OF REPORTING PERSON

    IA, OO





CUSIP NO. 001084102                   13G                     Page 3 of 10 pages

1   NAME OF REPORTING PERSON
    S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

    FLA Asset Management, LLC
    52-2169045

2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                (a) [ ]

                                                (b) [ ]

3   SEC USE ONLY

4   CITIZENSHIP OR PLACE OF ORGANIZATION

    Delaware

                    5  SOLE VOTING POWER
   NUMBER OF
     SHARES            None
  BENEFICIALLY
    OWNED BY        6  SHARED VOTING POWER
      EACH
    REPORTING          1,168,269 shares
     PERSON
      WITH
                    7  SOLE DISPOSITIVE POWER

                       None

                    8  SHARED DISPOSITIVE POWER

                       1,341,769 shares

9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    1,341,769 shares

10  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES

                                                    [ ]

11  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

    1.8%

12  TYPE OF REPORTING PERSON

    IA, OO





CUSIP NO. 001084102                   13G                     Page 4 of 10 pages

1   NAME OF REPORTING PERSON
    S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

    FLA Advisers L.L.C.
    13-3942422

2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                (a) [ ]

                                                (b) [ ]
3   SEC USE ONLY

4   CITIZENSHIP OR PLACE OF ORGANIZATION

    New York

                    5  SOLE VOTING POWER
   NUMBER OF
     SHARES            None
  BENEFICIALLY
    OWNED BY        6  SHARED VOTING POWER
      EACH
    REPORTING          971,225 shares
     PERSON
      WITH
                    7  SOLE DISPOSITIVE POWER

                       None

                    8  SHARED DISPOSITIVE POWER

                       971,225 shares

9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    971,225 shares (includes shares beneficially owned by Peconic Partners LLC)

10  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES

                                                    [ ]

11  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

    1.3%

12  TYPE OF REPORTING PERSON

    IA, OO





CUSIP NO. 001084102                   13G                     Page 5 of 10 pages

1   NAME OF REPORTING PERSON
    S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

    Peconic Partners LLC
    13-4096659

2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                (a) [ ]

                                                (b) [ ]

3   SEC USE ONLY

4   CITIZENSHIP OR PLACE OF ORGANIZATION

    Delaware

                    5  SOLE VOTING POWER
   NUMBER OF
     SHARES            None
BENEFICIALLY
    OWNED BY        6  SHARED VOTING POWER
      EACH
    REPORTING          34,400 shares
     PERSON
      WITH
                    7  SOLE DISPOSITIVE POWER

                       None

                    8  SHARED DISPOSITIVE POWER

                       34,400 shares

9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    34,400 shares

10  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES

                                                    [ ]

11  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

    0.05%

12  TYPE OF REPORTING PERSON

    IA, OO





CUSIP NO. 001084102                   13G                     Page 6 of 10 pages

1   NAME OF REPORTING PERSON
    S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

    Forstmann-Leff International, LLC
    52-2169041

2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                (a) [ ]

                                                (b) [ ]

3   SEC USE ONLY

4   CITIZENSHIP OR PLACE OF ORGANIZATION

    Delaware

                    5  SOLE VOTING POWER
   NUMBER OF
     SHARES            None
  BENEFICIALLY
    OWNED BY        6  SHARED VOTING POWER
      EACH
    REPORTING          None
     PERSON
      WITH
                    7  SOLE DISPOSITIVE POWER

                       None

                    8  SHARED DISPOSITIVE POWER

                       None

9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         None

10  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES

                                                    [ ]

11  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

    0%

12  TYPE OF REPORTING PERSON

    IA, OO





                                                              Page 7 of 10 pages

Item 1(a)         NAME OF ISSUER:

         Agco Corp.

Item 1(b)         ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:

         4205 River Green Parkway
         Duluth, GA 30096

Item 2(a)         NAME OF PERSON FILING:

         See Item 1 of the cover pages attached hereto

Item 2(b)         Address of Principal Business Office, or if none, residence:

         590 Madison Avenue
         New York, New York  10022

Item 2(c)         CITIZENSHIP:

         See Item 4 of the cover pages attached hereto

Item 2(d)         TITLE OF CLASS OF SECURITIES:

         Common Stock, $.01 par value

Item 2(e)         CUSIP NUMBER:

         001084102

Item 3            Forstmann-Leff Associates, LLC, a Delaware limited liability
                  company, is a registered investment adviser under Section 203
                  of the Investment Advisers Act of 1940 (the "Act"). FLA Asset
                  Management, LLC, a Delaware limited liability company, is a
                  registered investment adviser under the Act and a subsidiary
                  of Forstmann-Leff Associates, LLC. FLA Advisers L.L.C., a New
                  York limited liability company, is a registered investment
                  adviser under the Act. Peconic Partners LLC, a Delaware
                  limited liability company, is a registered investment adviser
                  under the Act and a subsidiary of FLA Advisers L.L.C.
                  Forstmann-Leff International, LLC, a Delaware limited
                  liability company, is a registered investment adviser under
                  the Act. The members of Forstmann-Leff Associates, LLC's
                  Investment Committee are the members of Forstmann-Leff
                  International, LLC's Investment Committee and the managers of
                  FLA Advisers L.L.C.





                                                              Page 8 of 10 pages

Item 4            OWNERSHIP:

         (a)      Amount beneficially owned: See Item 9 of the cover pages
                  attached hereto

         (b)      Percent of Class:
                  See Item 11 of the cover pages attached hereto

         (c)      See Items 5 through 8  of the cover pages attached      hereto

Item 5            OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS:

                  Not applicable

Item 6            OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER
                  PERSON:

                  Various clients of the reporting persons have the right to
                  receive or the power to direct the receipt of dividends from,
                  or the proceeds from the sale of, the Common Stock of Agco
                  Corp. No one client's interest in the Common Stock of Agco
                  Corp. is more than five percent of the total outstanding
                  Common Stock.

Item 7            IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH
                  ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING
                  COMPANY:

                  Not Applicable

Item 8            IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP:

                  Not Applicable

Item 9            NOTICE OF DISSOLUTION OF GROUP:

                  Not Applicable

Item 10           CERTIFICATION:

                  By signing below I certify that, to the best of my knowledge
                  and belief, the securities referred to above were acquired and
                  are held in the ordinary course of business and were not
                  acquired and are not held for the purpose of or with the
                  effect of changing or influencing the control of the issuer of
                  the securities and were not acquired and are not held in
                  connection with or as a participant in any transaction having
                  that purpose or effect.




                                                              Page 9 of 10 pages

                                   SIGNATURES

After reasonable inquiry and to the best of my knowledge and belief, I certify
that the information set forth in this statement is true, complete and correct.

February 11, 2004

                                        FORSTMANN-LEFF ASSOCIATES, LLC


                                        By: /s/ Joseph Sullivan
                                        Chief Operating Officer


                                        FLA ASSET MANAGEMENT, LLC


                                        By: Forstmann-Leff Associates, LLC,
                                        its Sole Member


                                        By: /s/ Joseph Sullivan
                                        Chief Operating Officer


                                        FLA ADVISERS L.L.C.


                                        By: /s/ Joseph Sullivan
                                        Chief Operating Officer


                                        PECONIC PARTNERS LLC


                                        By: /s/ Joseph Sullivan
                                        Chief Operating Officer


                                        FORSTMANN-LEFF INTERNATIONAL, LLC


                                        By: /s/ Joseph Sullivan
                                        Chief Operating Officer





                                                             Page 10 of 10 pages

                                                                       Exhibit A

                                    AGREEMENT

         The undersigned, Forstmann-Leff Associates, LLC, FLA Asset Management,
LLC, FLA Advisers L.L.C., Peconic Partners LLC and Forstmann-Leff International,
LLC, agree that the statement to which this exhibit is appended is filed on
behalf of each of them.


February 11, 2004

                                        FORSTMANN-LEFF ASSOCIATES, LLC


                                        By: /s/ Joseph Sullivan
                                        Chief Operating Officer


                                        FLA ASSET MANAGEMENT, LLC


                                        By: Forstmann-Leff Associates, LLC,
                                            its Sole Member


                                        By: /s/ Joseph Sullivan
                                        Chief Operating Officer


                                        FLA ADVISERS L.L.C.


                                        By: /s/ Joseph Sullivan
                                        Chief Operating Officer


                                        PECONIC PARTNERS LLC


                                        By: /s/ Joseph Sullivan
                                        Chief Operating Officer


                                        FORSTMANN-LEFF INTERNATIONAL, LLC


                                        By: /s/ Joseph Sullivan
                                        Chief Operating Officer