Institutional Ownership and Shareholders These institutions hold a total of 275,691,122 shares. Largest shareholders include Vanguard Group Inc, BlackRock Inc., T. Rowe Price Investment Management, Inc., State Street Corp, Davis Selected Advisers, RPMGX - T.

As of February 2026, MGM Resorts International (NYSE: MGM) is primarily owned by institutional investors, with IAC Inc. (InterActiveCorp) holding the largest individual stake. Led by billionaire Barry Diller, IAC significantly increased its position over the last few years and currently owns approximately 65.8 million shares, representing about 18-20% of the company. Other major shareholders include giant institutional funds such as The Vanguard Group, which holds roughly 8.6% (about 23.5 million shares), and BlackRock Inc., which typically maintains a stake between 5% and 7%. Corporate insiders, including executive officers and directors, own a combined total of roughly 3.06% of the outstanding stock. It is important to distinguish MGM Resorts (the casino and hotel operator) from MGM Studios, which was acquired by Amazon in 2022. For the resort entity, the heavy involvement of IAC has driven a significant shift toward digital expansion, particularly through the BetMGM joint venture with Entain, making IAC the most influential voice in the company’s current strategic direction.