VICI Properties (VICI) 425Business combination disclosure

As previously disclosed, on August 4, 2021, VICI Properties Inc., a Maryland corporation (the “Company”), MGM Growth Properties LLC, a Delaware limited liability company (“MGP”), MGM Growth Properties Operating Partnership LP, a Delaware limited partnership (“MGP OP”), VICI Properties LP, a Delaware limited partnership (“Existing VICI OP”), Venus Sub LLC, a Delaware limited liability company and a wholly owned subsidiary of Existing VICI OP (“REIT Merger Sub”), VICI Properties OP LLC, a Delaware limited liability company and an indirect wholly owned subsidiary of the Company (“New VICI Operating Company”), and MGM Resorts International, a Delaware corporation (“MGM”), entered into a definitive Master Transaction Agreement (the “Master Transaction Agreement”). Upon the terms and subject to the conditions set forth in the Master Transaction Agreement, prior to or on the closing date under the Master Transaction Agreement, the Company will contribute its interest in Existing VICI OP to New VICI Operating Company, which will serve as a new operating company for the Company. Following the contribution transaction, MGP will merge with and into REIT Merger Sub, with REIT Merger Sub surviving the merger (the “REIT Merger”). Immediately following consummation of the REIT Merger, REIT Merger Sub will distribute the interests of the general partner of MGP OP to Existing VICI OP and, immediately following such distribution, REIT Merger Sub will merge with and into MGP OP, with MGP OP surviving the merger (the “Partnership Merger” and, together with the REIT Merger, the “Mergers”). A definitive joint proxy statement/information statement/prospectus (the “joint proxy/information statement”) was filed with the Securities and Exchange Commission (the “SEC”) by the Company on September 23, 2021, in connection with, among other things, the Master Transaction Agreement.

The Company believes that the disclosures set forth in the joint proxy/information statement comply fully with all applicable laws and denies the allegations in the pending actions described above and believes they are without merit. Nevertheless, in order to moot plaintiffs’ disclosure claims, avoid nuisance and possible expense and business delays, and provide additional information to its stockholders, the Company has determined voluntarily to supplement certain disclosures in the joint proxy/information statement with the supplemental disclosures set forth below (the “Supplemental Disclosures”). Nothing in the Supplemental Disclosures shall be deemed an admission of the legal merit of the various litigation matters described above, or of the necessity or materiality under applicable laws of any of the disclosures set forth herein. To the contrary, the Company specifically denies all allegations in the various litigation matters that any additional disclosure was or is required or material.

The following supplemental disclosures should be read in conjunction with the joint proxy/information statement, which should be read in its entirety. The inclusion in this supplement to the joint proxy/information statement of certain information should not be regarded as an indication that any of the Company or its affiliates, officers, directors or other representatives, or any other recipient of this information, considered, or now considers, it to be material, and such information should not be relied upon as such. Defined terms used but not defined herein have the meanings set forth in the joint proxy/information

The following table reflects the metrics for each of the Comparable Companies and MGP:

Amending and restating the table following the fourth full paragraph on page 87:

Evercore calculated ranges of terminal values for VICI as of December 31, 2026 using the following two alternative methods:

This Current Report on Form 8-K contains certain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended, with respect to the proposed transaction described herein, including statements regarding the anticipated benefits of the transaction, the anticipated timing of the transaction and the markets of each company. These forward-looking statements generally are identified by the words “anticipates,” “assumes,” “believes,” “estimates,” “expects,” “guidance,” “intends,” “plans,” “projects,” “strategy,” “future,” “opportunity,” “plan,” “may,” “should,” “will,” “would” and similar expressions. Forward-looking statements are predictions, projections and other statements about future events that are based on current expectations and assumptions and, as a result, are subject to risks and uncertainties.

Currently, one of the most significant factors that could cause actual outcomes to differ materially from our forward-looking statements is the impact of the COVID-19 pandemic on the Company’s, MGP’s and each company’s respective tenants’ financial condition, results of operations, cash flows and performance. The extent to which the COVID-19 pandemic continues to adversely affect each company’s tenants, and ultimately impacts each company’s business and financial condition, depends on future developments which cannot be predicted with confidence. Many additional factors could cause actual future events and results to differ materially from the forward-looking statements, including but not limited to: (i) the possibility that the Company stockholders do not approve the proposed transaction or that other conditions to the closing of the proposed transaction are not satisfied or waived at all or on the anticipated timeline, (ii) failure to realize the anticipated

benefits of the proposed transaction, including as a result of delay in completing the proposed transaction, (iii) the risk that MGP’s business will not be integrated successfully or that such integration may be more difficult, time-consuming or costly than expected, (iv) unexpected costs or liabilities relating to the proposed transaction, (v) potential litigation relating to the proposed transaction that could be instituted against the Company or MGP or their respective directors or officers and the resulting expense or delay, (vi) the risk that disruptions caused by or relating to the proposed transaction will harm the Company’s or MGP’s business, including current plans and operations, (vii) the ability of the Company or MGP to retain and hire key personnel, (viii) potential adverse reactions by tenants or other business partners or changes to business relationships, including joint ventures, resulting from the announcement or completion of the proposed transaction, (ix) risks relating to the market value of the Company’s common stock to be issued in the proposed transaction, (x) risks associated with third-party contracts containing consent and/or other provisions that may be triggered by the proposed transaction, (xi) the impact of public health crises, such as pandemics (including the COVID-19 pandemic) and epidemics and any related company or government policies and actions intended to protect the health and safety of individuals or government policies or actions intended to maintain the functioning of national or global economies and markets, (xii) general economic and market developments and conditions, (xiii) restrictions during the pendency of the proposed transaction or thereafter that may impact the Company’s or MGP’s ability to pursue certain business opportunities or strategic transactions, (xiv) either company’s ability to maintain its status as a real estate investment trust for U.S. federal income tax purposes, and (xv) the occurrence of any event, change or other circumstances that could give rise to the termination of the Master Transaction Agreement relating to the proposed transaction. The foregoing list of factors is not exhaustive. You should carefully consider the foregoing factors and the other risks and uncertainties that affect the businesses of the Company and MGP described in the “Risk Factors” section of their respective Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and other documents filed by either of them from time to time with the SEC. These filings identify and address other important risks and uncertainties that could cause actual events and results to differ materially from those contained in the forward-looking statements. Investors are cautioned to interpret many of the risks identified in the “Risk Factors” section of these filings as being heightened as a result of the ongoing and numerous adverse impacts of the COVID-19 pandemic. Forward-looking statements speak only as of the date they are made. Readers are cautioned not to put undue reliance on forward-looking statements, and the Company and MGP assume no obligation and do not intend to update or revise these forward-looking statements, whether as a result of new information, future events or otherwise. Neither the Company nor MGP gives any assurance that either company will achieve its expectations.

Investors and security holders may obtain free copies of these documents and other documents filed with the SEC at www.sec.gov. In addition, investors and security holders may obtain free copies of the documents filed with the SEC by the Company by contacting VICI Properties Investor Relations at Investors@viciproperties.com or (646) 949-4631. Investors and security holders may obtain free copies of the documents filed with the SEC by MGP by contacting MGP Investor Relations at IR@mgmgrowthproperties.com or (702) 669-1470.

This Current Report on Form 8-K and the information contained herein shall not constitute an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offering of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act.