Riot Platforms, Inc. (RIOT) Institutional Ownership

Ownership Summary

Riot Platforms, Inc. (NASDAQ:RIOT) has 380 institutional investors with active 13F positions as of December 2025.

• Collectively, these holders controlled 66.4% of Riot Platforms's outstanding shares in December 2025, down from 66.8% in September 2025.
• They increased total shares held in Riot Platforms by 4.38% from the prior quarter, while the number of investors in RIOT increased 19.87% year over year.
• During the quarter, 211 of these 380 funds increased positions in RIOT, 118 reduced exposure, and 51 held steady.
• In total, institutional investors held 267.87Mn shares in Riot Platforms as of December 2025, up by 11.24Mn shares quarter on quarter, and up 68.26Mn shares year over year.
• VANGUARD GROUP INC leads ownership in RIOT with 39.91Mn shares as of December 31, 2025, equal to 9.9% of outstanding shares.
• Leading buyers of Riot Platforms shares for the quarter ending December 2025 were VIKING GLOBAL INVESTORS LP (12.43Mn), Nomura Holdings Inc (5.08Mn), Starboard Value LP (3.93Mn), Situational Awareness LP (2.58Mn), CIBC WORLD MARKETS CORP (2.52Mn).
• The largest sales of RIOT for the quarter ending December 2025 came from FMR LLC (7.64Mn), CANTOR FITZGERALD, L. P. (5.72Mn), JANE STREET GROUP, LLC (4.59Mn), TWO SIGMA ADVISERS, LP (3.7Mn), TWO SIGMA INVESTMENTS, LP (2.48Mn).
• Riot Platforms's 10 largest shareholders as of December 2025 include VANGUARD GROUP INC (39.91Mn), BlackRock, Inc. (29.11Mn), FMR LLC (12.8Mn), Starboard Value LP (12.74Mn), VIKING GLOBAL INVESTORS LP (12.43Mn), Value Aligned Research Advisors, LLC (9.62Mn), State Street Corp (8.91Mn), GEODE CAPITAL MANAGEMENT, LLC (8.83Mn), Situational Awareness LP (6.17Mn), T. Rowe Price Investment Management, Inc. (5.88Mn) per Business Quant data.