What was the main purpose of this 8-K filing?

The primary purpose of this 8-K filing was to formally announce and provide details on the completion of Marathon Petroleum Corporation's (MPC) two-for-one stock split and to incorporate updated selected financial data reflecting this split.

How did the stock split affect my shares?

The stock split was executed as a two-for-one stock dividend. For every share of MPC common stock you held as of May 20, 2015 (the record date), you received one additional share. This effectively doubled the number of shares you own, while the price per share was halved.

When did the stock start trading on a split-adjusted basis?

The shares of Marathon Petroleum Corporation began trading on a split-adjusted basis on June 11, 2015.

Where can I find the financial data reflecting the stock split?

The selected financial data, adjusted for the two-for-one stock split, is attached as Exhibit 99.1 to this 8-K filing and is incorporated by reference. This data covers periods including the three months ended March 31, 2015 and 2014, and the full years from 2010 to 2014.

MPC 8-K SEC Disclosure — Jul 30, 2015

Summary

Marathon Petroleum Corporation (MPC) filed an 8-K on July 30, 2015, primarily to report on the completion of its previously announced two-for-one stock split, which occurred in the form of a stock dividend. Shareholders received one additional share for each share held, with the split-adjusted trading commencing on June 11, 2015. This action aims to make the stock more accessible to a broader range of investors.

Key Highlights

1MPC completed a two-for-one stock split via a stock dividend.
2The stock split was effective for shareholders of record as of May 20, 2015.
3New shares began trading on a split-adjusted basis on June 11, 2015.
4The company provided selected financial data, adjusted for the stock split, for periods including Q1 2015, Q1 2014, and full years 2010-2014.
5This filing serves as a formal notification and update regarding the stock split mechanics and accompanying financial data.

Marathon Petroleum Corp 8-K Report, Corporate Update (Jul 30, 2015)

Summary

Key Highlights

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