SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                ----------------

                                 SCHEDULE 13G/A
                                 (Rule 13d-102)

                                ----------------

                                 Amendment No. 1

    INFORMATION TO BE INCLUDED IN STATEMENTS PURSUANT TO RULES 13d-1(b), (c)
        AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2 UNDER THE
                        SECURITIES EXCHANGE ACT OF 1934

                          MOMENTA PHARMACEUTICALS, INC.
                                (Name of Issuer)

                         COMMON STOCK, PAR VALUE $0.0001
                         (Title of Class of Securities)

                                    60877T100
                                 (CUSIP Number)

                                December 31, 2007
             (Date of Event Which Requires Filing of this Statement)

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

         [ ] Rule 13d-1(b)

         [X] 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 (the "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).





Schedule 13G/A                                                    PAGE 2 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Davidson Kempner Partners
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          New York
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)     SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                           [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    PN
--------------------------------------------------------------------------------





Schedule 13G/A                                                    PAGE 3 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Davidson Kempner Institutional Partners, L.P.
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          Delaware
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)     SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                           [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    PN
--------------------------------------------------------------------------------





Schedule 13G/A                                                    PAGE 4 of 41
CUSIP No. 60877T100

--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         M. H. Davidson & Co.
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          New York
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)     SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY
              OWNED BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                           [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    PN
--------------------------------------------------------------------------------





Schedule 13G/A                                                    PAGE 5 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Davidson Kempner International, Ltd.
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          British Virgin Islands
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)     SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                           [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    CO
--------------------------------------------------------------------------------





Schedule 13G/A                                                    PAGE 6 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Serena Limited
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          Cayman Islands
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)     SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                           [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    CO
--------------------------------------------------------------------------------






Schedule 13G/A                                                    PAGE 7 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Davidson Kempner Healthcare Fund LP
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          Delaware
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)     SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                          [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    PN
--------------------------------------------------------------------------------





Schedule 13G/A                                                    PAGE 8 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Davidson Kempner Healthcare International Ltd.
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          Cayman Islands
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)      SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                          [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    CO
--------------------------------------------------------------------------------





Schedule 13G/A                                                    PAGE 9 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         MHD Management Co.
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          New York
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)     SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                           [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    PN
--------------------------------------------------------------------------------





Schedule 13G/A                                                    PAGE 10 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Davidson Kempner Advisers Inc.
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          New York
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)     SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                           [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    IA
--------------------------------------------------------------------------------





Schedule 13G/A                                                    PAGE 11 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Davidson Kempner International Advisors, L.L.C.
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          Delaware
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)     SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                           [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    OO
--------------------------------------------------------------------------------





Schedule 13G/A                                                    PAGE 12 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         DK Group LLC
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          Delaware
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)     SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                           [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    OO
--------------------------------------------------------------------------------





Schedule 13G/A                                                    PAGE 13 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         DK Management Partners LP
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          Delaware
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)     SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                           [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    PN
--------------------------------------------------------------------------------





Schedule 13G/A                                                    PAGE 14 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         DK Stillwater GP LLC
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          Delaware
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)     SHARED DISPOSITIVE POWER
                                     0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                           [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    OO
--------------------------------------------------------------------------------





Schedule 13G/A                                                    PAGE 15 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Thomas L. Kempner, Jr.
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          United States
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)      SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                           [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    IN
--------------------------------------------------------------------------------





Schedule 13G/A                                                    PAGE 16 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Marvin H. Davidson
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          United States
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)     SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                           [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    IN
--------------------------------------------------------------------------------





Schedule 13G/A                                                    PAGE 17 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Stephen M. Dowicz
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          United States
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)     SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                           [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    IN
--------------------------------------------------------------------------------







Schedule 13G/A                                                    PAGE 18 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Scott E. Davidson
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          United States
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)     SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                           [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    IN
--------------------------------------------------------------------------------





Schedule 13G/A                                                    PAGE 19 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Michael J. Leffell
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          United States
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)     SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                           [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    IN
--------------------------------------------------------------------------------





Schedule 13G/A                                                    PAGE 20 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Timothy I. Levart
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          United Kingdom & United States
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)     SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                           [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    IN
--------------------------------------------------------------------------------





Schedule 13G/A                                                    PAGE 21 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Robert J. Brivio, Jr.
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          United States
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)     SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                           [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    IN
--------------------------------------------------------------------------------





Schedule 13G/A                                                    PAGE 22 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Eric P. Epstein
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          United States
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)     SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                           [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    IN
--------------------------------------------------------------------------------





Schedule 13G/A                                                    PAGE 23 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Anthony A. Yoseloff
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          United States
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)     SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                           [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    IN
--------------------------------------------------------------------------------





Schedule 13G/A                                                    PAGE 24 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------
(1)      NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Avram Z. Friedman
--------------------------------------------------------------------------------
(2)      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                         (a) [ ]
                                                         (b) [X]
--------------------------------------------------------------------------------
(3)      SEC USE ONLY
--------------------------------------------------------------------------------
(4)      CITIZENSHIP OR PLACE OF ORGANIZATION
                          United States
--------------------------------------------------------------------------------

NUMBER OF         (5)     SOLE VOTING POWER
                                    0
SHARES            --------------------------------------------------------------

BENEFICIALLY      (6)     SHARED VOTING POWER
                                    0
OWNED BY          --------------------------------------------------------------

EACH              (7)     SOLE DISPOSITIVE POWER
                                    0
REPORTING         --------------------------------------------------------------

PERSON WITH       (8)     SHARED DISPOSITIVE POWER
                                    0
--------------------------------------------------------------------------------
         (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
              BY EACH REPORTING PERSON
                                    0
--------------------------------------------------------------------------------
         (10) CHECK BOX IF THE AGGREGATE AMOUNT
              IN ROW (9) EXCLUDES CERTAIN SHARES                           [ ]
--------------------------------------------------------------------------------
         (11) PERCENT OF CLASS REPRESENTED
              BY AMOUNT IN ROW (9)
                                    0.0%
--------------------------------------------------------------------------------
         (12) TYPE OF REPORTING PERSON
                                    IN
--------------------------------------------------------------------------------





Schedule 13G/A                                                    PAGE 25 of 41
CUSIP No. 60877T100


--------------------------------------------------------------------------------


ITEM 1(a).    NAME OF ISSUER:

              Momenta Pharmaceuticals, Inc. (the "Company")

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

              675 West Kendall Street
              Cambridge, MA 02142

ITEM 2(a).    NAME OF PERSON FILING:

         This Statement is filed by each of the entities and persons listed
below, all of whom together are referred to herein as the "Reporting Persons":

              (i)     Davidson Kempner Partners, a New York limited partnership
                      ("DKP");

              (ii)    Davidson Kempner Institutional Partners, L.P., a Delaware
                      limited partnership ("DKIP");

              (iii)   M. H. Davidson & Co., a New York limited partnership
                      ("CO");

              (iv)    Davidson Kempner International, Ltd., a British Virgin
                      Islands corporation ("DKIL");

              (v)     Serena Limited, a Cayman Islands corporation ("Serena");

              (vi)    Davidson Kempner Healthcare Fund LP, a Delaware limited
                      partnership ("DKHF");

              (vii)   Davidson Kempner Healthcare International Ltd., a Cayman
                      Islands corporation ("DKHI");

              (viii)  MHD Management Co., a New York limited partnership and the
                      general partner of DKP ("MHD");

              (ix)    Davidson Kempner Advisers Inc., a New York corporation and
                      the general partner of DKIP ("DKAI"), which is registered
                      as an investment adviser with the U.S. Securities and
                      Exchange Commission;

              (x)     Davidson Kempner International Advisors, L.L.C., a
                      Delaware limited liability company and the manager of DKIL
                      and Serena ("DKIA");

              (xi)    DK Group LLC, a Delaware limited liability company and the
                      general partner of DKHF ("DKG");

              (xii)   DK Management Partners LP, a Delaware limited
                      partnership and the investment manager of DKHI
                      ("DKMP");



Schedule 13G/A                                                    PAGE 26 of 41
CUSIP No. 60877T100


              (xiii)  DK Stillwater GP LLC, a Delaware limited liability company
                      and the general partner of DKMP ("DKS"); and

              (xiv)   Messrs. Thomas L. Kempner, Jr., Marvin H. Davidson,
                      Stephen M. Dowicz, Scott E. Davidson, Michael J. Leffell,
                      Timothy I. Levart, Robert J. Brivio, Jr., Anthony A.
                      Yoseloff, Eric P. Epstein and Avram Z. Friedman
                      (collectively, the "Principals"), who are the general
                      partners of CO and MHD, the sole managing members of DKIA
                      and DKG and the sole stockholders of DKAI. Messrs. Thomas
                      L. Kempner, Jr. and Timothy I. Levart are Executive
                      Managing Member and Deputy Executive Managing Member,
                      respectively, of DKS. Each of Messrs. Kempner and Levart,
                      together with Messrs. Marvin H. Davidson, Stephen M.
                      Dowicz, Scott E. Davidson, Michael J. Leffell, Robert J.
                      Brivio, Jr., Anthony A. Yoseloff, Eric P. Epstein and
                      Avram Z. Friedman are limited partners of DKMP.

ITEM 2(b).    ADDRESS OF PRINCIPAL BUSINESS OFFICE:

         The address of the principal business office of each of the Reporting
Persons is c/o Davidson Kempner Partners, 65 East 55th Street, 19th Floor, New
York, New York 10022.

ITEM 2(c).    CITIZENSHIP:

              (i)     DKP - a New York limited partnership

              (ii)    DKIP - a Delaware limited partnership

              (iii)   CO - a New York limited partnership

              (iv)    DKIL - a British Virgin Islands corporation

              (v)     Serena - a Cayman Islands corporation

              (vi)    DKHF - a Delaware limited partnership

              (vii)   DKHI - a Cayman Islands corporation

              (viii)  MHD - a New York limited partnership

              (ix)    DKAI - a New York corporation

              (x)     DKIA - a Delaware limited liability company

              (xi)    DKG - a Delaware limited liability company

              (xii)   DKMP - a Delaware limited partnership

              (xiii)  DKS - a Delaware limited liability company

              (xiv)   Thomas L. Kempner, Jr. - United States



Schedule 13G/A                                                    PAGE 27 of 41
CUSIP No. 60877T100

              (xv)    Marvin H. Davidson - United States

              (xvi)   Stephen M. Dowicz - United States

              (xvii)  Scott E. Davidson - United States

              (xviii) Michael J. Leffell - United States

              (xix)   Timothy I. Levart - United Kingdom & United States

              (xx)    Robert J. Brivio, Jr. - United States

              (xxi)   Eric P. Epstein - United States

              (xxii)  Anthony A. Yoseloff - United States

              (xxiii) Avram Z. Friedman - United States

ITEM 2(d).  TITLE OF CLASS OF SECURITIES:

         COMMON STOCK, PAR VALUE $0.0001

ITEM 2(e).  CUSIP NUMBER:

         60877T100

ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO 13d-1(b) OR 13d-2(b) OR (c),
CHECK WHETHER THE PERSON FILING IS A:

              (a)[ ]   Broker or dealer registered under Section 15 of the Act;

              (b)[ ]   Bank as defined in Section 3(a)(6) of the Act;

              (c)[ ]   Insurance Company as defined in Section 3(a)(19) of the
                       Act;

              (d)[ ]   Investment Company registered under Section 8 of the
                       Investment Company Act of 1940;

              (e)[ ]   Investment Adviser registered under Section 203 of the
                       Investment Advisers Act of 1940:  see Rule
                       13d-1(b)(1)(ii)(E);

              (f)[ ]   Employee Benefit Plan, Pension Fund which is subject to
                       the provisions of the Employee Retirement Income
                       Security Act of 1974 or Endowment Fund; see Rule
                       13d-1(b)(1)(ii)(F);

              (g)[ ]   Parent Holding Company, in accordance with Rule
                       13d-1(b)(ii)(G);

              (h)[ ]   Savings Associations as defined in Section 3(b) of the
                       Federal Deposit Insurance Act;



Schedule 13G/A                                                    PAGE 28 of 41
CUSIP No. 60877T100

              (i)[ ]   Church Plan that is excluded from the definition of an
                       investment company under Section 3(c)(14) of the
                       Investment Company Act of 1940;

              (j)[ ]   Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

ITEM 4.   OWNERSHIP.

         A. DKP

              (a) Amount beneficially owned: 0

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv) shared power to dispose or to direct the disposition: 0

         B. DKIP

              (a) Amount beneficially owned: 0

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv) shared power to dispose or to direct the disposition: 0

         C. CO

              (a) Amount beneficially owned: 0

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0



Schedule 13G/A                                                    PAGE 29 of 41
CUSIP No. 60877T100

                  (iv) shared power to dispose or to direct the disposition: 0

         D. DKIL

              (a) Amount beneficially owned: 0

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv) shared power to dispose or to direct the disposition: 0

         E. Serena

              (a) Amount beneficially owned: 0

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv) shared power to dispose or to direct the disposition: 0

         F. DKHF

              (a) Amount beneficially owned: 0

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv) shared power to dispose or to direct the disposition: 0

         G. DKHI

              (a) Amount beneficially owned: 0



Schedule 13G/A                                                    PAGE 30 of 41
CUSIP No. 60877T100

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv) shared power to dispose or to direct the disposition: 0

         H. MHD

              (a) Amount beneficially owned: 0

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv) shared power to dispose or to direct the disposition: 0

         I. DKAI

              (a) Amount beneficially owned: 0

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv) shared power to dispose or to direct the disposition: 0

         J. DKIA

              (a) Amount beneficially owned: 0

              (b) Percent of class: 0.0%



Schedule 13G/A                                                    PAGE 31 of 41
CUSIP No. 60877T100

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv) shared power to dispose or to direct the disposition: 0

         K. DKG

              (a) Amount beneficially owned: 0

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv) shared power to dispose or to direct the disposition: 0

         L. DKMP

              (a) Amount beneficially owned: 0

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv) shared power to dispose or to direct the disposition: 0

         M. DKS

              (a) Amount beneficially owned: 0

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0



Schedule 13G/A                                                    PAGE 32 of 41
CUSIP No. 60877T100

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv) shared power to dispose or to direct the disposition: 0

         N. Thomas L. Kempner, Jr.

              (a) Amount beneficially owned: 0

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv) shared power to dispose or to direct the disposition: 0

         O. Marvin H. Davidson

              (a) Amount beneficially owned: 0

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv) shared power to dispose or to direct the disposition: 0

         P. Stephen M. Dowicz

              (a) Amount beneficially owned: 0

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0



Schedule 13G/A                                                    PAGE 33 of 41
CUSIP No. 60877T100

                  (iv) shared power to dispose or to direct the disposition: 0

         Q. Scott E. Davidson

              (a) Amount beneficially owned: 0

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv) shared power to dispose or to direct the disposition: 0

         R. Michael J. Leffell

              (a) Amount beneficially owned. 0

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv) shared power to dispose or to direct the disposition: 0

         S. Timothy I. Levart

              (a) Amount beneficially owned: 0

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv) shared power to dispose or to direct the disposition: 0



Schedule 13G/A                                                    PAGE 34 of 41
CUSIP No. 60877T100

         T. Robert J. Brivio, Jr.

              (a) Amount beneficially owned: 0

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv) shared power to dispose or to direct the disposition: 0

         U. Eric P. Epstein

              (a) Amount beneficially owned: 0

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv) shared power to dispose or to direct the disposition: 0

         V. Anthony A. Yoseloff

              (a) Amount beneficially owned: 0

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv) shared power to dispose or to direct the disposition: 0

         W. Avram Z. Friedman

              (a) Amount beneficially owned: 0



Schedule 13G/A                                                    PAGE 35 of 41
CUSIP No. 60877T100

              (b) Percent of class: 0.0%

              (c) Number of shares as to which such person has:

                  (i) sole power to vote or to direct the vote: 0

                  (ii) shared power to vote or to direct the vote: 0

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv) shared power to dispose or to direct the disposition: 0



ITEM 5.           OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS.

         If this statement is being filed to report the fact as of the date
hereof the reporting person has ceased to be the beneficial owner of more than
five percent of the class of securities, check the following [X].

ITEM 6.           OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER
                  PERSON.

                  Not applicable.

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.

                  See Item 4.

ITEM 9.           NOTICE OF DISSOLUTION OF GROUP.

                  Not applicable.

ITEM 10.          CERTIFICATION.  (if filing pursuant to Rule 13d-1(c))

         Each of the Reporting Persons hereby makes the following certification:

         By signing below we certify that, to the best of our knowledge and
belief, the securities referred to above 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.




Schedule 13G/A                                                    PAGE 36 of 41
CUSIP No. 60877T100


                                   SIGNATURES

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

DATED:  February 14, 2008            DAVIDSON KEMPNER PARTNERS
                                     By: MHD Management Co.,
                                     its General Partner

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title: Managing Partner

                                     DAVIDSON KEMPNER INSTITUTIONAL
                                     PARTNERS, L.P.
                                     By: Davidson Kempner Advisers Inc.,
                                     its General Partner

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title: President

                                     M.H. DAVIDSON & CO.

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title: Managing Partner

                                     DAVIDSON KEMPNER INTERNATIONAL,
                                     LTD.
                                     By: Davidson Kempner International
                                     Advisors, L.L.C.,
                                     its Investment Manager

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title: Executive Managing Member

                                     SERENA LIMITED
                                     By: Davidson Kempner International
                                     Advisors, L.L.C.,
                                     its Investment Manager

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title: Executive Managing Member



Schedule 13G/A                                                    PAGE 37 of 41
CUSIP No. 60877T100


                                     DAVIDSON KEMPNER HEALTHCARE FUND LP
                                     By:  DK Group LLC,
                                     its General Partner

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title: Executive Managing Member

                                     DAVIDSON KEMPNER HEALTHCARE
                                     INTERNATIONAL LTD.
                                     By:  DK Management Partners LP,
                                     its Investment Manager
                                     By:  DK Stillwater GP LLC, its general
                                     partner

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title: Executive Managing Member

                                     MHD MANAGEMENT CO.

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title: Managing Partner

                                     DAVIDSON KEMPNER ADVISERS INC.

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title: President

                                     DAVIDSON KEMPNER INTERNATIONAL
                                     ADVISORS, L.L.C.

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title: Executive Managing Member

                                     DK GROUP LLC

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title: Executive Managing Member



Schedule 13G/A                                                    PAGE 38 of 41
CUSIP No. 60877T100

                                     DK MANAGEMENT PARTNERS LP
                                     By:  DK Stillwater GP LLC, its general
                                     partner

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title: Executive Managing Member

                                     DK STILLWATER GP LLC

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title: Executive Managing Member

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Thomas L. Kempner, Jr.

                                     /S/ MARVIN H. DAVIDSON
                                     --------------------------------
                                     Marvin H. Davidson

                                     /S/ STEPHEN M. DOWICZ
                                     --------------------------------
                                     Stephen M. Dowicz

                                     /S/ SCOTT E. DAVIDSON
                                     --------------------------------
                                     Scott E. Davidson

                                     /S/ MICHAEL J. LEFFELL
                                     --------------------------------
                                     Michael J. Leffell

                                     /S/ TIMOTHY I. LEVART
                                     --------------------------------
                                     Timothy I. Levart

                                     /S/ ROBERT J. BRIVIO, JR.
                                     --------------------------------
                                     Robert J. Brivio, Jr.

                                     /S/ ERIC P. EPSTEIN
                                     --------------------------------
                                     Eric P. Epstein

                                     /S/ ANTHONY A. YOSELOFF
                                     --------------------------------
                                     Anthony A. Yoseloff

                                     /S/ AVRAM Z. FRIEDMAN
                                     --------------------------------
                                     Avram Z. Friedman



Schedule 13G/A                                                    PAGE 39 of 41
CUSIP No. 60877T100

                                    EXHIBIT 1

                           JOINT ACQUISITION STATEMENT

                            PURSUANT TO RULE 13d-1(k)

         The undersigned  acknowledge and agree that the foregoing  statement on
Schedule  13G is  filed  on  behalf  of each of the  undersigned  and  that  all
subsequent  amendments  to this  statement  on Schedule  13G,  shall be filed on
behalf of each of the  undersigned  without the  necessity of filing  additional
joint  acquisition  statements.  The undersigned  acknowledge that each shall be
responsible for the timely filing of such  amendments,  and for the completeness
and accuracy of the  information  concerning  him or it contained  therein,  but
shall not be responsible  for the  completeness  and accuracy of the information
concerning the others, except to the extent that he or it knows or has reason to
believe that such information is inaccurate.

DATED:  February 14, 2008            DAVIDSON KEMPNER PARTNERS
                                     By: MHD Management Co.,
                                     its General Partner

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title: Managing Partner

                                     DAVIDSON KEMPNER INSTITUTIONAL
                                     PARTNERS, L.P.
                                     By: Davidson Kempner Advisers Inc.,
                                     its General Partner

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title: President

                                     M.H. DAVIDSON & CO.

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title: Managing Partner

                                     DAVIDSON KEMPNER INTERNATIONAL, LTD.
                                     By: Davidson Kempner International
                                     Advisors, L.L.C.,
                                     its Investment Manager

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title:    Executive Managing Member



Schedule 13G/A                                                    PAGE 40 of 41
CUSIP No. 60877T100

                                     SERENA LIMITED
                                     By: Davidson Kempner International
                                     Advisors, L.L.C.,
                                     its Investment Manager

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title: Executive Managing Member

                                     DAVIDSON KEMPNER HEALTHCARE FUND LP
                                     By:  DK Group LLC,
                                     its General Partner

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title: Executive Managing Member

                                     DAVIDSON KEMPNER HEALTHCARE
                                     INTERNATIONAL LTD.
                                     By:  DK Management Partners LP,
                                     its Investment Manager
                                     By:  DK Stillwater GP LLC, its general
                                     partner

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title: Executive Managing Member

                                     MHD MANAGEMENT CO.

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title:    Managing Partner

                                     DAVIDSON KEMPNER ADVISERS INC.

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title: President

                                     DAVIDSON KEMPNER INTERNATIONAL
                                     ADVISORS, L.L.C.

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title: Executive Managing Member



Schedule 13G/A                                                    PAGE 41 of 41
CUSIP No. 60877T100

                                     DK GROUP LLC

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title:    Executive Managing Member

                                     DK MANAGEMENT PARTNERS LP
                                     By:  DK Stillwater GP LLC, its general
                                     partner

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title:    Executive Managing Member

                                     DK STILLWATER GP LLC

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Name:  Thomas L. Kempner, Jr.
                                     Title:    Executive Managing Member

                                     /S/ THOMAS L. KEMPNER, JR.
                                     --------------------------------
                                     Thomas L. Kempner, Jr.

                                     /S/ MARVIN H. DAVIDSON
                                     --------------------------------
                                     Marvin H. Davidson

                                     /S/ STEPHEN M. DOWICZ
                                     --------------------------------
                                     Stephen M. Dowicz

                                     /S/ SCOTT E. DAVIDSON
                                     --------------------------------
                                     Scott E. Davidson

                                     /S/ MICHAEL J. LEFFELL
                                     --------------------------------
                                     Michael J. Leffell

                                     /S/ TIMOTHY I. LEVART
                                     --------------------------------
                                     Timothy I. Levart

                                     /S/ ROBERT J. BRIVIO, JR.
                                     -------------------------
                                     Robert J. Brivio, Jr.

                                     /S/ ERIC P. EPSTEIN
                                     --------------------------------
                                     Eric P. Epstein

                                     /S/ ANTHONY A. YOSELOFF
                                     --------------------------------
                                     Anthony A. Yoseloff

                                     /S/ AVRAM Z. FRIEDMAN
                                     --------------------------------
                                     Avram Z. Friedman