SECURITIES AND EXCHANGE COMMISSION
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Washington, D.C. 20549
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_______________
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SCHEDULE 13D
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INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO
RULE 13d-2(a)
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Under the Securities Exchange Act of 1934
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(Amendment No. )
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Marathon Petroleum Corporation
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(Name of Issuer)
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Common Stock, par value $0.01 per share
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(Title of Class of Securities)
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56585A102
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(CUSIP Number)
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Marc Weingarten, Esq.
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David Rosewater, Esq.
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919 Third Avenue
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New York, New York 10022
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(212) 756-2000
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(Name, Address and Telephone Number of Person
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Authorized to Receive Notices and Communications)
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January 9, 2012
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(Date of Event which Requires
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Filing of this Schedule)
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CUSIP No. 56585A102
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SCHEDULE 13D
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Page 2 of 7 Pages
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1
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NAME OF REPORTING PERSON
JANA PARTNERS LLC
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2
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CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
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(a) ¨
(b) ¨
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3
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SEC USE ONLY
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4
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SOURCE OF FUNDS*
AF
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5
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CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)
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¨
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6
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CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
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NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH
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7
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SOLE VOTING POWER
0
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8
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SHARED VOTING POWER
19,702,322 (including options to purchase 896,000 shares of Common Stock)
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9
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SOLE DISPOSITIVE POWER
0
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10
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SHARED DISPOSITIVE POWER
19,702,322 (including options to purchase 896,000 shares of Common Stock)
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11
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AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH PERSON
19,702,322 (including options to purchase 896,000 shares of Common Stock)
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12
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CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
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¨
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13
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PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) (see Item 5)
5.5%
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14
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TYPE OF REPORTING PERSON*
IA
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CUSIP No. 56585A102
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SCHEDULE 13D
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Page 3 of 7 Pages
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Item 1.
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SECURITY AND ISSUER
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Item 2.
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IDENTITY AND BACKGROUND.
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Item 3.
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SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.
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Item 4.
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PURPOSE OF TRANSACTION.
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Item 5.
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INTEREST IN SECURITIES OF THE COMPANY.
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CUSIP No. 56585A102
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SCHEDULE 13D
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Page 4 of 7 Pages
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Item 6.
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CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT TO SECURITIES OF THE ISSUER.
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Item 7.
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MATERIAL TO BE FILED AS EXHIBITS.
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Exhibit A:
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Transactions in the Issuer During the Last 60 Days.
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CUSIP No. 56585A102
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SCHEDULE 13D
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Page 5 of 7 Pages
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JANA PARTNERS LLC
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By:
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/s/ Jennifer Fanjiang
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Name:
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Jennifer Fanjiang
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Title:
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General Counsel
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CUSIP No. 56585A102
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SCHEDULE 13D
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Page 6 of 7 Pages
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Trade Date
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Amount Purchased (Sold)
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Price per Share ($)
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11/22/2011
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22,400
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$33.23
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11/22/2011
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251,053
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$33.31
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11/22/2011
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32,593
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$33.50
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11/22/2011
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200,000
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$33.53
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11/23/2011
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42,527
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$32.80
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11/23/2011
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100,000
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$32.90
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11/23/2011
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1,263,456
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$32.93
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11/23/2011
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80,699
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$33.18
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11/25/2011
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400,000
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$32.45
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11/28/2011
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11,500
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$33.04
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11/28/2011
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150,000
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$33.19
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11/28/2011
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70,900
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$33.34
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11/28/2011
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445,924
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$33.51
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11/28/2011
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253,200
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$33.98
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11/29/2011
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613,259
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$33.13
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11/29/2011
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101,300
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$33.20
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11/29/2011
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25,000
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$33.29
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11/29/2011
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268,280
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$33.30
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11/29/2011
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19,175
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$33.34
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11/30/2011
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192,459
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$33.09
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11/30/2011
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400,000
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$33.95
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12/01/2011
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25,000
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$33.64
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12/01/2011
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32,314
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$33.75
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12/01/2011
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1,000
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$33.96
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12/01/2011
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449,031
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$34.08
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12/05/2011
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5,800
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$34.15
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12/05/2011
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189,536
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$34.28
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12/05/2011
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214,703
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$34.46
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12/05/2011
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811,896
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$34.77
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12/05/2011
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25,068
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$34.91
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12/06/2011
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101,800
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$34.19
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12/06/2011
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200,100
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$34.41
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12/06/2011
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244,339
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$34.47
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12/06/2011
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657,838
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$34.50
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12/07/2011
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1,055,512
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$34.14
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12/07/2011
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3,500
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$34.19
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12/07/2011
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400,000
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$34.51
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12/08/2011
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1,700
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$33.54
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12/08/2011
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928,663
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$33.84
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12/08/2011
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859,064
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$33.87
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12/08/2011
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40,205
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$33.88
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12/08/2011
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92,900
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$33.92
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12/08/2011
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7,000
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$33.99
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12/09/2011
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618,692
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$34.14
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12/09/2011
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38,652
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$34.46
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12/09/2011
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85,000
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$34.79
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12/09/2011
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280,278
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$34.83
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12/12/2011
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55,200
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$34.12
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12/12/2011
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119,600
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$34.13
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12/12/2011
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1,731,282
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$34.18
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12/12/2011
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11,063
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$34.19
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12/12/2011
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200
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$34.21
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12/12/2011
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260,000
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$34.24
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12/12/2011
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154,186
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$34.53
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12/12/2011
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50,000
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$34.62
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12/13/2011
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74,999
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$33.94
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12/13/2011
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25,000
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$33.98
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12/13/2011
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50,000
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$34.20
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12/13/2011
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542,901
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$34.30
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12/13/2011
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64,900
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$34.45
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12/13/2011
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42,200
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$34.57
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12/16/2011
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10,000
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$32.04
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12/16/2011
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62,313
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$32.10
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12/16/2011
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366,200
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$32.54
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12/16/2011
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119,487
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$32.99
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12/16/2011
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25,000
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$33.13
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12/19/2011
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(109,127)
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($32.22)
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12/19/2011
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33,680
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$31.96
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12/19/2011
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80,900
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$32.24
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12/19/2011
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548,420
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$32.36
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12/20/2011
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5,000
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$31.99
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1/3/2012
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60,147
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$33.71
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1/9/2012
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205,000
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$30.52
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1/9/2012
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8,265
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$30.55
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1/9/2012
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5,700
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$30.58
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1/9/2012
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339,591
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$30.76
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1/9/2012
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50,000
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$30.98
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1/10/2012
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75,000
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$31.30
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1/10/2012
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151,900
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$31.44
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1/10/2012
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28,325
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$31.52
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1/10/2012
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320,161
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$31.70
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1/10/2012
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56,200
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$31.83
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1/11/2012
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68,100
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$32.04
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1/11/2012
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763,900
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$32.47
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1/11/2012
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35,000
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$32.53
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1/11/2012
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2,313
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$32.96
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CUSIP No. 56585A102
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SCHEDULE 13D
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Page 7 of 7 Pages
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Trade Date
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Expiration Date
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Amount Acquired (Sold)
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Strike Price
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12/01/2011
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01/20/2012
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250,000
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$30.00
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12/07/2011
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01/20/2012
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100,000
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$30.00
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12/09/2011
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01/20/2012
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100,000
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$30.00
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12/12/2011
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01/20/2012
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50,000
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$30.00
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12/19/2011
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01/20/2012
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(500,000)
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$30.00
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12/19/2011
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02/17/2012
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500,000
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$27.50
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12/30/2011
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02/17/2012
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36,000
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$27.50
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1/9/2012
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02/17/2012
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235,000
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$27.50
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1/11/2012
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02/17/2012
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125,000
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$27.50
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