MGM MGM Resorts International

This Amendment No. 42 amends and supplements the Statement on Schedule 13D filed by Tracinda Corporation, a Nevada corporation (“Tracinda”), and Mr. Kirk Kerkorian, the sole shareholder of Tracinda, with the Securities and Exchange Commission (the “SEC”) on August 20, 1991, as amended on June 8, 1992, October 16, 1992, February 22, 1994, March 11, 1994, November 20, 1995, January 24, 1997, September 25, 1997, August 3, 1998, August 21, 1998, September 1, 1998, June 11, 1999, November 16, 1999, April 18, 2000, February 9, 2001, May 21, 2001, November 2, 2001, May 21, 2007, June 20, 2007, August 7, 2007, August 22, 2007, March 5, 2008, July 8, 2008, September 3, 2008, October 16, 2008, February 19, 2009, May 18, 2009, May 20, 2009, September 9, 2009, October 20, 2009, April 16, 2010, October 13, 2010, October 18, 2010 (two filings), October 21, 2010, November 12, 2010, January 28, 2011, April 20, 2011, August 18, 2011, February 28, 2012, April 4, 2012 and March 14, 2013, and as amended by that certain Schedule TO-T filed by Tracinda and Mr. Kerkorian with the SEC on December 4, 2006, as amended (as so amended, the “Schedule 13D”), relating to the common stock, $.01 par value per share (“Common Stock”), of MGM Resorts International, a Delaware corporation ( “MGM Resorts” or the “Company”). Capitalized terms used herein and not otherwise defined in this Amendment No. 42 shall have the meaning set forth in the Schedule 13D.

Item 4 of the Schedule 13D is hereby amended to add the following information:

On March 13, 2013, Tracinda filed with the Federal Trade Commission a Notification pursuant to the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, and the rules promulgated thereunder in connection with its potential purchases of additional shares of Common Stock either in the open market or directly from third parties. Since making that filing, Tracinda has made no purchases of Common Stock.

Tracinda monitors its investment in the Company by, among other things, contacting Company management to address operations and market conditions. Tracinda continues to believe that there is substantial value in the assets of MGM Resorts and that the Company is a good long-term investment. As the Company’s largest stockholder, Tracinda occasionally receives inquiries regarding the Company and Tracinda’s shares of Common Stock. From time to time, Tracinda may continue to explore potential transactions involving purchases or sales of shares of Common Stock (including negotiated or other sale transactions). Tracinda may ultimately not enter into any such transaction.

Tracinda complies with the Company’s Securities Trading Policy and, therefore, may generally trade Common Stock only during “trading windows” established by the Company. The next trading window is expected to open on the third trading day following issuance of the Company’s earnings release for the quarter ended September 30, 2013.

SIGNATURE

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