SECURITIES & EXCHANGE COMMISSION
 Washington, D.C. 20549
SCHEDULE 13G*
 (Rule 13d-102)
INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
TO RULES 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED
PURSUANT TO 13d-2(b)
MasterCard Inc.
 (Name of Issuer)
Class A Common Stock, par value US$0.0001 per share
 (Title of Class of Securities)
57636Q104
 (CUSIP Number)
November 9, 2006
(Date of event which requires filing of this statement)
Check the appropriate box to designate the rule pursuant to which this
Schedule 13G is filed:
[ ] Rule 13d-1(b)
[X] Rule 13d-1(c)
[ ] Rule 13d-1(d)
(Page 1 of 18 Pages)

*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 purposes of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

CUSIP No. 57636Q104                 13G              Page 2 of 18 Pages
---------------------------------------------------------------------------
     (1)  NAMES OF REPORTING PERSONS
          I.R.S. IDENTIFICATION NO.
          OF ABOVE PERSONS (ENTITIES ONLY)
                                            Lone Spruce, L.P.
---------------------------------------------------------------------------
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                             (a) [X]
                                                             (b) [ ]
---------------------------------------------------------------------------
     (3)  SEC USE ONLY
---------------------------------------------------------------------------
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
                        Delaware
---------------------------------------------------------------------------
NUMBER OF      (5)  SOLE VOTING POWER
                                                    -0-
SHARES         ------------------------------------------------------------

BENEFICIALLY   (6)  SHARED VOTING POWER
                                                    62,936
OWNED BY       ------------------------------------------------------------

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

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                                                    62,936
---------------------------------------------------------------------------
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
                                                    62,936
---------------------------------------------------------------------------
     (10) CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES **                  [ ]
---------------------------------------------------------------------------
     (11) PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
                                                    0.1%
---------------------------------------------------------------------------
     (12) TYPE OF REPORTING PERSON **
                                                    PN
---------------------------------------------------------------------------
                     ** SEE INSTRUCTIONS BEFORE FILLING OUT!	

CUSIP No. 57636Q104                 13G              Page 3 of 18 Pages
--------------------------------------------------------------------
     (1)  NAMES OF REPORTING PERSONS
          I.R.S. IDENTIFICATION NO.
          OF ABOVE PERSONS (ENTITIES ONLY)
                                            Lone Balsam, L.P.
---------------------------------------------------------------------------
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                           (a)  [X]
                                                           (b)  [ ]
---------------------------------------------------------------------------
     (3)  SEC USE ONLY
---------------------------------------------------------------------------
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
                        Delaware
---------------------------------------------------------------------------
NUMBER OF      (5)  SOLE VOTING POWER
                                                    -0-
SHARES         ------------------------------------------------------------

BENEFICIALLY   (6)  SHARED VOTING POWER
                                                    138,113
OWNED BY       ------------------------------------------------------------

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

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                                                    138,113
---------------------------------------------------------------------------
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
                                                    138,113
---------------------------------------------------------------------------
     (10) CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES **              [ ]
---------------------------------------------------------------------------
     (11) PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
                                                    0.2%
---------------------------------------------------------------------------
     (12) TYPE OF REPORTING PERSON **
                                                    PN
---------------------------------------------------------------------------
                     ** SEE INSTRUCTIONS BEFORE FILLING OUT!	

CUSIP No. 57636Q104                 13G              Page 4 of 18 Pages
---------------------------------------------------------------------------
     (1)  NAMES OF REPORTING PERSONS
          I.R.S. IDENTIFICATION NO.
          OF ABOVE PERSONS (ENTITIES ONLY)
                                            Lone Sequoia, L.P.
---------------------------------------------------------------------------
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                               (a)  [X]
                                                               (b)  [ ]
---------------------------------------------------------------------------
     (3)  SEC USE ONLY
---------------------------------------------------------------------------
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
                        Delaware
---------------------------------------------------------------------------
NUMBER OF      (5)  SOLE VOTING POWER
                                                    -0-
SHARES         ------------------------------------------------------------

BENEFICIALLY   (6)  SHARED VOTING POWER
                                                    115,385
OWNED BY       ------------------------------------------------------------

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

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                                                    115,385
---------------------------------------------------------------------------
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
                                                    115,385
---------------------------------------------------------------------------
     (10) CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES **                  [ ]
---------------------------------------------------------------------------
     (11) PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
                                                    0.1%
---------------------------------------------------------------------------
     (12) TYPE OF REPORTING PERSON **
                                                    PN
---------------------------------------------------------------------------
                     ** SEE INSTRUCTIONS BEFORE FILLING OUT!	

CUSIP No. 57636Q104                 13G              Page 5 of 18 Pages
---------------------------------------------------------------------------
     (1)  NAMES OF REPORTING PERSONS
          I.R.S. IDENTIFICATION NO.
          OF ABOVE PERSONS (ENTITIES ONLY)
                                            Lone Cascade, L.P.
---------------------------------------------------------------------------
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                               (a)  [X]
                                                               (b)  [ ]
---------------------------------------------------------------------------
     (3)  SEC USE ONLY
---------------------------------------------------------------------------
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
                        Delaware
---------------------------------------------------------------------------
NUMBER OF      (5)  SOLE VOTING POWER
                                                    -0-
SHARES         ------------------------------------------------------------

BENEFICIALLY   (6)  SHARED VOTING POWER
                                                    1,188,972
OWNED BY       ------------------------------------------------------------

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

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                                                    1,188,972
---------------------------------------------------------------------------
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
                                                    1,188,972
---------------------------------------------------------------------------
     (10) CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES **                  [ ]
---------------------------------------------------------------------------
     (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
                                                    1.5%
---------------------------------------------------------------------------
     (12) TYPE OF REPORTING PERSON **
                                                    PN
---------------------------------------------------------------------------
                     ** SEE INSTRUCTIONS BEFORE FILLING OUT!	

CUSIP No. 57636Q104                 13G              Page 6 of 18 Pages
---------------------------------------------------------------------------
     (1)  NAMES OF REPORTING PERSONS
          I.R.S. IDENTIFICATION NO.
          OF ABOVE PERSONS (ENTITIES ONLY)
                                            Lone Sierra, L.P.
---------------------------------------------------------------------------
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                               (a)  [X]
                                                               (b)  [ ]
---------------------------------------------------------------------------
     (3)  SEC USE ONLY
---------------------------------------------------------------------------
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
                        Delaware
---------------------------------------------------------------------------
NUMBER OF      (5)  SOLE VOTING POWER
                                                    -0-
SHARES         ------------------------------------------------------------

BENEFICIALLY   (6)  SHARED VOTING POWER
                                                    98,965
OWNED BY       ------------------------------------------------------------

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

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                                                    98,965
---------------------------------------------------------------------------
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
                                                    98,965
---------------------------------------------------------------------------
     (10) CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES **                  [ ]
---------------------------------------------------------------------------
     (11) PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
                                                    0.1%
---------------------------------------------------------------------------
     (12) TYPE OF REPORTING PERSON **
                                                    PN
---------------------------------------------------------------------------
                     ** SEE INSTRUCTIONS BEFORE FILLING OUT!	

CUSIP No. 57636Q104                 13G              Page 7 of 18 Pages

------------------------------------------------------------------------
     (1)  NAMES OF REPORTING PERSONS
          I.R.S. IDENTIFICATION NO.
          OF ABOVE PERSONS (ENTITIES ONLY)
                                            Lone Pine Associates LLC
---------------------------------------------------------------------------
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                               (a)  [X]
                                                               (b)  [ ]
---------------------------------------------------------------------------
     (3)  SEC USE ONLY
---------------------------------------------------------------------------
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
                        Delaware
---------------------------------------------------------------------------
NUMBER OF      (5)  SOLE VOTING POWER
                                                    -0-
SHARES         ------------------------------------------------------------

BENEFICIALLY   (6)  SHARED VOTING POWER
                                                    316,434
OWNED BY      -------------------------------------------------------------

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

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                                                    316,434
---------------------------------------------------------------------------
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
                                                    316,434
---------------------------------------------------------------------------
     (10) CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES **                  [ ]
---------------------------------------------------------------------------
     (11) PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
                                                    0.4%
---------------------------------------------------------------------------
     (12) TYPE OF REPORTING PERSON **
                                                    OO
---------------------------------------------------------------------------
                     ** SEE INSTRUCTIONS BEFORE FILLING OUT!	

CUSIP No. 57636Q104                 13G              Page 8 of 18 Pages

---------------------------------------------------------------------------
     (1)  NAMES OF REPORTING PERSONS
          I.R.S. IDENTIFICATION NO.
          OF ABOVE PERSONS (ENTITIES ONLY)
                                            Lone Pine Members LLC
---------------------------------------------------------------------------
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                               (a)  [X]
                                                               (b)  [ ]
---------------------------------------------------------------------------
     (3)  SEC USE ONLY
---------------------------------------------------------------------------
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
                        Delaware
---------------------------------------------------------------------------
NUMBER OF      (5)  SOLE VOTING POWER
                                                    -0-
SHARES         ------------------------------------------------------------

BENEFICIALLY   (6)  SHARED VOTING POWER
                                                    1,287,937
OWNED BY       ------------------------------------------------------------

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

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                                                    1,287,937
---------------------------------------------------------------------------
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
                                                    1,287,937
---------------------------------------------------------------------------
     (10) CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES **                  [ ]
---------------------------------------------------------------------------
     (11) PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
                                                    1.6%
---------------------------------------------------------------------------
     (12) TYPE OF REPORTING PERSON **
                                                    OO
---------------------------------------------------------------------------
                     ** SEE INSTRUCTIONS BEFORE FILLING OUT!	

CUSIP No. 57636Q104                 13G              Page 9 of 18 Pages

---------------------------------------------------------------------------
     (1)  NAMES OF REPORTING PERSONS
          I.R.S. IDENTIFICATION NO.
          OF ABOVE PERSONS (ENTITIES ONLY)
                                            Lone Pine Capital LLC
---------------------------------------------------------------------------
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                               (a)  [X]
                                                               (b)  [ ]
---------------------------------------------------------------------------
     (3)  SEC USE ONLY
---------------------------------------------------------------------------
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
                        Delaware
---------------------------------------------------------------------------
NUMBER OF      (5)  SOLE VOTING POWER
                                                    -0-
SHARES         ------------------------------------------------------------

BENEFICIALLY   (6)  SHARED VOTING POWER
                                                    2,559,444
OWNED BY       ------------------------------------------------------------

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

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                                                    2,559,444
---------------------------------------------------------------------------
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
                                                    2,559,444
---------------------------------------------------------------------------
     (10) CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES **                  [ ]
---------------------------------------------------------------------------
     (11) PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
                                                    3.2%
---------------------------------------------------------------------------
     (12) TYPE OF REPORTING PERSON **
                                                    IA
---------------------------------------------------------------------------
                     ** SEE INSTRUCTIONS BEFORE FILLING OUT!	

CUSIP No. 57636Q104                 13G              Page 10 of 18 Pages

---------------------------------------------------------------------------
     (1)  NAMES OF REPORTING PERSONS
          I.R.S. IDENTIFICATION NO.
          OF ABOVE PERSONS (ENTITIES ONLY)
                                            Stephen F. Mandel, Jr.
---------------------------------------------------------------------------
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **
                                                               (a)  [X]
                                                               (b)  [ ]
---------------------------------------------------------------------------
     (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
                                                    4,163,815
OWNED BY       ------------------------------------------------------------

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

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                                                    4,163,815
---------------------------------------------------------------------------
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
                                                    4,163,815
---------------------------------------------------------------------------
     (10) CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES **                 [ ]
---------------------------------------------------------------------------
     (11) PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
                                                    5.2%
---------------------------------------------------------------------------
     (12) TYPE OF REPORTING PERSON **
                                                    IN
---------------------------------------------------------------------------
                     ** SEE INSTRUCTIONS BEFORE FILLING OUT!	

CUSIP No. 57636Q104                 13G              Page 11 of 18 Pages

Item 1(a).     Name of Issuer:

     The name of the issuer is MasterCard Inc. (the "Company").

Item 1(b).     Address of Issuer's Principal Executive Offices:

     The Company's principal executive offices are located at 2000 Purchase
Street, Purchase, NY 10577.

Item 2(a).     Name of Person Filing:

     This statement is filed by:
          (i) Lone Spruce, L.P., a Delaware limited partnership ("Lone Spruce"),
              with respect to the Shares (defined in Item 2(d) below) directly
              owned by it;
         (ii) Lone Balsam, L.P., a Delaware limited partnership ("Lone Balsam"),
              with respect to the Shares directly owned by it;
        (iii) Lone Sequoia, L.P., a Delaware limited partnership ("Lone
              Sequoia"), with respect to the Shares directly owned by it;
         (iv) Lone Cascade, L.P., a Delaware limited partnership ("Lone
              Cascade"), with respect to the Shares directly owned by it;
          (v) Lone Sierra, L.P., a Delaware limited partnership ("Lone Sierra"),
              with respect to the Shares directly owned by it;
         (vi) Lone Pine Associates LLC, a Delaware limited liability company
              ("Lone Pine"), with respect to the Shares directly owned by Lone
              Spruce, Lone Balsam and Lone Sequoia;
        (vii) Lone Pine Members LLC, a Delaware limited liability company ("Lone
              Pine Members"), with respect to the Shares directly owned by Lone
              Cascade and Lone Sierra;
       (viii) Lone Pine Capital LLC, a Delaware limited liability company ("Lone
              Pine Capital"), which serves as investment manager to Lone
              Cypress, Ltd. ("Lone Cypress"), Lone Kauri, Ltd. ("Lone Kauri")
              and Lone Monterey Master Fund, Ltd. ("Lone Monterey Master Fund"),
              each a Cayman Islands exempted company, with respect to the Shares
              directly owned by each of Lone Cypress, Lone Kauri and Lone
              Monterey Master Fund;
         (ix) Stephen F. Mandel, Jr. ("Mr. Mandel"), with respect to the Shares
              directly owned by each of Lone Spruce, Lone Balsam, Lone Sequoia,
              Lone Cascade, Lone Sierra, Lone Cypress, Lone Kauri and Lone
              Monterey Master Fund.

              The foregoing persons are hereinafter sometimes
         collectively referred to as the "Reporting Persons".  Any	

CUSIP No. 57636Q104                 13G              Page 12 of 18 Pages

         disclosures herein with respect to persons other than the Reporting
         Persons are made on information and belief after making inquiry to the
         appropriate party.

Item 2(b).     Address of Principal Business Office or, if None, Residence:

     The address of the business office of each of the Reporting Persons is Two
Greenwich Plaza, Greenwich, Connecticut 06830.

Item 2(c).     Citizenship:

     Lone Spruce, Lone Balsam, Lone Sequoia, Lone Cascade and Lone Sierra are
limited partnerships organized under the laws of the State of Delaware. Lone
Pine, Lone Pine Members and Lone Pine Capital are limited liability companies
organized under the laws of the State of Delaware. Mr. Mandel is a United States
citizen.

Item 2(d).     Title of Class of Securities:

     Class A Common Stock, par value US$0.0001 per share (the "Shares")

Item 2(e).  CUSIP Number:

     57636Q104	

CUSIP No. 57636Q104                 13G             Page 13 of 18 Pages

Item 3. If this statement is filed pursuant to Rules 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 in accordance with Rule
                  13d-1(b)(1)(ii)(E),

          (f) [ ] Employee Benefit Plan or Endowment Fund in accordance
                  with Rule 13d-1(b)(1)(ii)(F),

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

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

          (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).

If this statement is filed pursuant to Rule 13d-1(c), check the box. [X]

Item 4.   Ownership.

      A. Lone Spruce, L.P.
             (a) Amount beneficially owned: 62,936
             (b) Percent of class: 0.1% The percentages used herein and in the
rest of Item 4 are calculated based upon the 79,631,922 Shares issued and
outstanding as of October 30, 2006 as reported in the Company's Form 10-Q filed
on November 1, 2006.
             (c)(i) Sole power to vote or direct the vote: -0-
               (ii) Shared power to vote or direct the vote: 62,936
              (iii) Sole power to dispose or direct the disposition: -0-
               (iv) Shared power to dispose or direct the disposition:
                    62,936	

CUSIP No. 57636Q104                 13G             Page 14 of 18 Pages

      B. Lone Balsam, L.P.
             (a) Amount beneficially owned: 138,113
             (b) Percent of class: 0.2%
             (c)(i) Sole power to vote or direct the vote: -0-
               (ii) Shared power to vote or direct the vote: 138,113
              (iii) Sole power to dispose or direct the disposition: -0-
               (iv) Shared power to dispose or direct the disposition:
                    138,113

      C. Lone Sequoia, L.P.
             (a) Amount beneficially owned: 115,385
             (b) Percent of class: 0.1%
             (c)(i) Sole power to vote or direct the vote: -0-
               (ii) Shared power to vote or direct the vote: 115,385
              (iii) Sole power to dispose or direct the disposition: -0-
               (iv) Shared power to dispose or direct the disposition:
                    115,385

      D. Lone Cascade, L.P.
             (a) Amount beneficially owned: 1,188,972
             (b) Percent of class: 1.5%
             (c)(i) Sole power to vote or direct the vote: -0-
               (ii) Shared power to vote or direct the vote: 1,188,972
              (iii) Sole power to dispose or direct the disposition: -0-
               (iv) Shared power to dispose or direct the disposition:
                    1,188,972

      E. Lone Sierra, L.P.
             (a) Amount beneficially owned: 98,965
             (b) Percent of class: 0.1%
             (c)(i) Sole power to vote or direct the vote: -0-
               (ii) Shared power to vote or direct the vote: 98,965
              (iii) Sole power to dispose or direct the disposition: -0-
               (iv) Shared power to dispose or direct the disposition:
                    98,965

      F.     Lone Pine Associates LLC
             (a) Amount beneficially owned: 316,434
             (b) Percent of class: 0.4%
             (c)(i) Sole power to vote or direct the vote: -0-
               (ii) Shared power to vote or direct the vote: 316,434
              (iii) Sole power to dispose or direct the disposition: -0-
               (iv) Shared power to dispose or direct the disposition:
                    316,434	

CUSIP No. 57636Q104                 13G             Page 15 of 18 Pages

      G. Lone Pine Members LLC
             (a) Amount beneficially owned: 1,287,937
             (b) Percent of class: 1.6%
             (c)(i) Sole power to vote or direct the vote: -0-
               (ii) Shared power to vote or direct the vote: 1,287,937
              (iii) Sole power to dispose or direct the disposition: -0-
               (iv) Shared power to dispose or direct the disposition:
                    1,287,937

      H. Lone Pine Capital LLC
             (a) Amount beneficially owned: 2,559,444
             (b) Percent of class: 3.2%
             (c)(i) Sole power to vote or direct the vote: -0-
               (ii) Shared power to vote or direct the vote: 2,559,444
              (iii) Sole power to dispose or direct the disposition: -0-
               (iv) Shared power to dispose or direct the disposition:
                    2,559,444

      I. Stephen F. Mandel, Jr.
            (a) Amount beneficially owned: 4,163,815
            (b) Percent of class: 5.2%
            (c)(i)  Sole power to vote or direct the vote: -0-
               (ii) Shared power to vote or direct the vote: 4,163,815
              (iii) Sole power to dispose or direct the disposition: -0-
               (iv) Shared power to dispose or direct the disposition:
                    4,163,815

Item 5.     Ownership of Five Percent or Less of a Class.

      Not applicable.

Item 6.     Ownership of More than Five Percent on Behalf of Another Person.

     Lone Pine, the general partner of Lone Spruce, Lone Sequoia and Lone
Balsam, has the power to direct the affairs of Lone Spruce, Lone Sequoia and
Lone Balsam, including decisions respecting the disposition of the proceeds from
the sale of shares. Lone Pine Members, the general partner of Lone Cascade and
Lone Sierra, has the power to direct the affairs of Lone Cascade and Lone
Sierra, including decisions respecting the disposition of the proceeds from the
sale of shares. Lone Pine Capital, the investment manager of Lone Cypress, Lone
Kauri and Lone Monterey Master Fund, has the power to direct the receipt of
dividends from or the proceeds of the sale of shares held by Lone Cypress, Lone
Kauri and Lone Monterey Master Fund. Mr. Mandel is the Managing Member of each
of Lone Pine, Lone Pine Members and Lone Pine Capital and in that capacity
directs their operations.	

CUSIP No. 57636Q104                 13G             Page 16 of 18 Pages

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 2.

Item 9.  Notice of Dissolution of Group.

     Not applicable.

Item 10.  Certification.

     Each of the Reporting Persons hereby makes the following certification:

          By signing below I certify that, to the best of my 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.	

CUSIP No. 57636Q104                 13G             Page 17 of 18 Pages

                                   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:  November 20, 2006

                           By: /s/ Stephen F. Mandel, Jr.
                               ----------------------------------------
                               Stephen F. Mandel, Jr., individually and
                               (a) as Managing Member of Lone Pine
                               Associates LLC, for itself and as the
                               general partner of (i) Lone Spruce, L.P.,
                               (ii) Lone Balsam, L.P. and (iii) Lone
                               Sequoia, L.P.;
                               (b) as Managing Member of Lone Pine
                               Members LLC, for itself and as the
                               general partner of (i) Lone Cascade, L.P.
                               and (ii) Lone Sierra, L.P.; and
                               (c) as Managing Member of Lone Pine
                               Capital LLC	

CUSIP No. 57636Q104                 13G             Page 18 of 18 Pages

                                    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:  November 20, 2006

                           By: /s/ Stephen F. Mandel, Jr.
                               ----------------------------------------
                               Stephen F. Mandel, Jr., individually and
                               (a) as Managing Member of Lone Pine
                               Associates LLC, for itself and as the
                               general partner of (i) Lone Spruce, L.P.,
                               (ii) Lone Balsam, L.P. and (iii) Lone
                               Sequoia, L.P.;
                               (b) as Managing Member of Lone Pine
                               Members LLC, for itself and as the
                               general partner of (i) Lone Cascade, L.P.
                               and (ii) Lone Sierra, L.P.; and
                               (c) as Managing Member of Lone Pine
                               Capital LLC