SCHEDULE: Vanguard Discloses 5.75% Stake in Riot Platforms

Vanguard Portfolio Management has reported beneficial ownership of 21,819,754 shares, representing 5.75% of Riot Platforms Inc.'s common stock as of March 31, 2026.

Summary

• Vanguard Portfolio Management, along with its affiliates Vanguard Fiduciary Trust Company and Vanguard Global Advisers, LLC, has disclosed a significant beneficial ownership stake in Riot Platforms Inc.
• The filing indicates beneficial ownership of 21,819,754 shares of Riot Platforms' common stock.
• This holding represents 5.75% of the total class of securities.
• The reporting date for this ownership is March 31, 2026.
• Vanguard Portfolio Management exercises sole dispositive power over 21,819,754 shares and sole voting power over 134,095 shares.

Sentiment

Score: 6

Explanation: StockSavvy.ai views this as a neutral to slightly positive filing, as it indicates significant institutional interest from a major player like Vanguard, but does not provide operational or financial performance updates for Riot Platforms itself.

Positives

• Vanguard's substantial investment suggests confidence in Riot Platforms' long-term prospects.
• The disclosure of a 5.75% stake indicates a significant institutional investor's commitment.

Future Outlook

This filing is a disclosure of current ownership and does not contain forward-looking statements or guidance from Riot Platforms Inc.

Industry Context

StockSavvy.ai notes that significant institutional investment, as demonstrated by Vanguard's disclosure, can be a positive signal for companies in the cryptocurrency mining sector, potentially indicating stability and growth expectations.

Stakeholder Impact

• Shareholders may view Vanguard's increased or maintained stake as a positive indicator of institutional confidence in Riot Platforms.
• Potential investors may see this as a sign of stability and institutional backing for the company.

Key Dates

Recommendation

This filing is a Schedule 13G, indicating a significant institutional ownership stake by Vanguard. While it suggests institutional confidence, it does not provide operational or financial performance data for Riot Platforms itself. Therefore, a 'hold' recommendation is appropriate, advising investors to await further company-specific performance updates before making buy or sell decisions.

Keywords

Riot Platforms, Vanguard, Schedule 13G, Beneficial Ownership, Institutional Investor, Common Stock, SEC Filing, Mining, Bitcoin Mining