Riot Platforms RIOT Institutional Ownership

Updated Oct 5, 2026

Riot Platforms, Inc. (NASDAQ:RIOT) appeared in the 13F filings of 450 institutional investors for the quarter ended June 30, 2026.

• These investors held 92.13% of Riot Platforms' outstanding shares at the end of Q2 2026, up from 83.88% in Q1 2026.
• Total holdings of RIOT shares rose 9.85% from Q1 2026, and the holder count rose 27.84% from Q2 2025.
• Among the 450 holders of Riot Platforms, 260 added to their positions, 132 reduced their stakes and 58 left their positions unchanged.
• In total, institutional investors held 320.33Mn shares of Riot Platforms at the end of Q2 2026, up 28.73Mn from the prior quarter and up 108.09Mn from a year earlier.
• BlackRock, Inc. was the top holder of Riot Platforms as of June 30, 2026, with 31.98Mn shares, or 9.20% of shares outstanding.
• Among existing holders, the largest additions to Riot Platforms in Q2 2026 came from Jane Street Group, LLC (+9.44Mn shares), Situational Awareness LP (+5.6Mn shares), FMR LLC (+4.63Mn shares), SG Americas Securities, LLC (+4.34Mn shares) and Two Sigma Investments, LP (+3.24Mn shares).
• On the other side, among holders that kept a position in Riot Platforms, the largest reductions in Q2 2026 came from Starboard Value LP (-5.43Mn shares), Nomura Holdings Inc (-4.99Mn shares), Defiance ETFs, LLC (-2.58Mn shares), Westfield Capital Management Co LP (-2.49Mn shares) and Value Aligned Research Advisors, LLC (-1.89Mn shares).
• Riot Platforms' 10 largest institutional shareholders as of Q2 2026 were BlackRock, Inc. (31.98Mn shares), Vanguard Portfolio Management LLC (21.73Mn shares), FMR LLC (19.65Mn shares), Situational Awareness LP (17.1Mn shares), Jane Street Group, LLC (16.83Mn shares), Vanguard Capital Management LLC (15.15Mn shares), Starboard Value LP (10.11Mn shares), State Street Corp (9.44Mn shares), Geode Capital Management, LLC (9.28Mn shares) and Dimensional Fund Advisors LP (6.99Mn shares), per Business Quant data.