William Hornbuckle - 06 Oct 2025 Form 4 Insider Report for MGM Resorts International (MGM)

Role: CEO AND PRESIDENT, Director
Signature: /s/ Jessica Cunningham, Attorney-In-Fact
Issuer symbol: MGM
Transactions as of: 06 Oct 2025
Net transactions value: -$422,810
Form type: 4
Filing time: 08 Oct 2025, 17:25:47 UTC
Previous filing: 07 Oct 2025
Next filing: 09 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
HORNBUCKLE WILLIAM	CEO AND PRESIDENT, Director	3600 LAS VEGAS BLVD., S., LAS VEGAS	/s/ Jessica Cunningham, Attorney-In-Fact	08 Oct 2025	0001183302

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MGM	Common Stock $.01 Par Value ND	Options Exercise	$0	+32,441	+5.6%	$0.000000	609,064	07 Oct 2025	Direct
transaction	MGM	Common Stock $.01 Par Value ND	Tax liability	$422,810	-12,766	-2.1%	$33.12	596,298	07 Oct 2025	Direct
holding	MGM	Common Stock $.01 Par Value ND						172,781	06 Oct 2025	In trust

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	MGM	Restricted Stock Units	Award	$0	+147,406		$0.000000	147,406	06 Oct 2025	Common Stock $.01 Par Value ND	147,406		Direct	F1
transaction	MGM	Restricted Stock Units	Options Exercise	$0	-32,441	-33%	$0.000000	64,883	07 Oct 2025	Common Stock $.01 Par Value ND	32,441		Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Restricted Stock Units ("RSUs") granted under the MGM Resorts International ("Company") 2022 Omnibus Incentive Plan (the "Plan"). Each RSU represents the right to receive, following vesting, one share of Company common stock. The RSUs vest in three equal annual installments commencing on the first anniversary of the grant date.