Sec Form 4 Filing - GROUNDS WILLIAM WARWICK @ MGM Resorts International - 2018-03-14

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person GROUNDS WILLIAM WARWICK 2. Issuer Name and Ticker or Trading Symbol MGM Resorts International [ MGM] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 3600 LAS VEGAS BLVD. SOUTH 3. Date of Earliest Transaction (MM/DD/YY) 03/14/2018 (Street) LAS VEGAS, NV89109 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock $.01 Par Value ND 03/14/2018 P 1,000 A $ 35.5 3,400 ( 1 ) D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other GROUNDS WILLIAM WARWICK 3600 L AS VEGAS BLVD. SOUTH LAS VEGAS, NV89109 X Signatures /s/ Andrew Hagopian III, Attorney-In-Fact 03/16/2018 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Reflects Mr. Grounds' personal beneficial ownership. Does not include 20,848,738 beneficially owned by Dubai World, a decree entity of Dubai, United Arab Emirates government that is 100% owned by the Government of Dubai ("DW"), and certain of DW's affiliates as described on the Form 4 relating to the Issuer filed with the SEC on September 11, 2017 by William Warwick Grounds, DW, Infinity World Holding Ltd., a Dubai, United Arab Emirates offshore corporation ("Infinity Holding"), Infinity World Cayman Investments Corporation, a Cayman Islands exempted company ("Cayman Investments"), Infinity World (Cayman) L.P., a Cayman Islands exempted limited partnership ("Cayman LP"), Infinity World (Cayman) Holding, a Cayman Islands exempted company ("Cayman Holding") and Infinity World Investments LLC, a Nevada limited liability company ("Infinity World"). Mr. Grounds disclaims beneficial ownership of the shares beneficially owned by DW, Infinity Holding, Cayman Investments, Cayman LP, Cayman Holding and Infinity World.

Remarks: William W. Grounds is a director of the Issuer who, prior to 2015, had been designated as a nominee for election to serve on the Issuer's board of directors pursuant to the that certain company stock purchase and support agreement, dated as of August, 21, 2007, by and between the Issuer and Infinity World Investments LLC. As a result, the following persons may be deemed directors by deputization of the Issuer solely for purposes of Section 16 of the Securities Exchange Act of 1934, as amended: Infinity World Investments LLC, Infinity World Cayman Investments Corporation, Infinity World (Cayman) L.P., Infinity World (Cayman) Holding, Infinity World Holding Ltd., and Dubai World. Beginning in 2015, the Board of Directors of the Issuer has recommended Mr. Grounds as a director in its discretion.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.