Riot Platforms, Inc.
Ownership
Ownership Structure
Who owns Riot Platforms, Inc. (RIOT)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 93.0% of the shares are freely tradable; institutional investors hold 81.6%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 8.52 | 31,984,547 | +7.9 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 5.79 | 21,725,129 | +0.2 | 06/30/2026 |
| FMR Inc | 5.24 | 19,645,295 | +30.8 | 06/30/2026 |
| Situational Awareness LP | 4.56 | 17,100,000 | +48.7 | 06/30/2026 |
| Jane Street Group LLC | 4.48 | 16,826,113 | +127.8 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.04 | 15,146,138 | +1.9 | 06/30/2026 |
| Situational Awareness Partners LP | 3.07 | 11,502,137 | +0.0 | 03/31/2026 |
| Starboard Value LP | 2.70 | 10,114,576 | -34.9 | 06/30/2026 |
| State Street Corp | 2.52 | 9,438,485 | +2.7 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 3.02 | 11,333,496 | +4.7 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Les Jason | CEO | 4,944,637 | 69,224,918 $ | Jul 31, 2026 | direct |
| Howell Stephen Mitchell Jr. | COO | 1,834,408 | 25,681,712 $ | Aug 12, 2026 | direct |
| Werner Ryan D. | SVP, CAO | 699,493 | 9,792,902 $ | Aug 5, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 12, 2026 | Howell Stephen Mitchell Jr. | COO | Other | 21,198 | 0.00 | – |
| Aug 5, 2026 | Werner Ryan D. | SVP, CAO | Sell | 2,501 | 23.53 | 58,849 |
| Aug 5, 2026 | Werner Ryan D. | SVP, CAO | Sell | 9,802 | 22.82 | 223,682 |
| Aug 5, 2026 | Werner Ryan D. | SVP, CAO | Sell | 35,430 | 21.98 | 778,751 |
| Jul 31, 2026 | Howell Stephen Mitchell Jr. | COO | Other | 153,162 | 20.17 | 3,089,278 |
| Jul 31, 2026 | Werner Ryan D. | SVP, CAO | Other | 148,500 | 20.17 | 2,995,245 |
| Jul 31, 2026 | Les Jason | CEO | Other | 2,896,921 | 20.17 | 58,430,897 |
| Jul 7, 2026 | Werner Ryan D. | SVP, CAO | Sell | 7,596 | 21.93 | 166,580 |
| Jul 7, 2026 | Werner Ryan D. | SVP, CAO | Sell | 10,232 | 21.22 | 217,123 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 3, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.