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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1510295	Marathon Petroleum Corp	MPC	Petroleum Refining (2911)	271284632

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1521085	P. George Shaffner	C/O Marathon Petroleum Corporation 539 S. Main Street Findlay OH 45840	Sr. Vp, Hes&S (See Remarks)	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2015-05-06	21,125	$41.69	35,407	No	4	M	Direct
Common Stock	Acquisiton	2015-05-06	4,436	$34.40	39,843	No	4	M	Direct
Common Stock	Disposition	2015-05-06	21,125	$100.45	18,718	No	4	S	Direct
Common Stock	Disposition	2015-05-06	4,436	$100.76	14,282	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	M	Direct
No	4	S	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (right to buy)	Disposition	2015-05-06	21,125	$0.00	21,125	$41.69
Common Stock	Stock Option (right to buy)	Disposition	2015-05-06	4,436	$0.00	4,436	$34.40

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2012-02-23	2021-02-23	No	4	M	Direct
0	2012-12-05	2021-12-05	No	4	M	Direct

Footnotes

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $100.02 to $100.67, inclusive. The reporting person undertakes to provide to Marathon Petroleum Corporation, any security holder of Marathon Petroleum Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1) and (2) to this Form 4.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $100.67 to $100.88, inclusive. The reporting person undertakes to provide to Marathon Petroleum Corporation, any security holder of Marathon Petroleum Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1) and (2) to this Form 4.
This option, originally in the amount of 21,125, is exercisable as follows: 7,041 shares on February 23, 2012, 7,042 shares on February 23, 2013 and 7,042 shares on February 23, 2014.
This option, originally in the amount of 4,436, is exercisable as follows: 1,478 shares on December 5, 2012, 1,479 shares on December 5, 2013 and 1,479 shares on December 5, 2014.