NASDAQ · Holders
Riot Platforms (RIOT) Institutional Ownership & Insider Trading History
Top RIOT institutional shareholders, filing changes, and Form 4 insider activity with filters for buys, sales, option exercises, gifts, and tax withholding.
- Last confirmed price
- $15.16-9.09%
- Oct 14, 2026, 1:10 PM EDT · Prices may be delayed
Data dates
Prices as of Oct 14, 1:10 PM EDT · Fundamentals checked Oct 14, 1:10 PM EDT · Statement period ended Jun 30, 2026
Ownership read
RIOT insider transaction activity: Mixed, sale-heavy.
Blackrock Inc. is the largest institutional holder. 18 sales and 1 purchase appear in the recent Form 4 filings. Use the filters below to separate open-market activity from option exercises, gifts, awards, and tax withholding.
Insider flow
RIOT
Directional bars ignore awards, gifts, conversions, and tax withholding rows.
Top holder
31.98M
Blackrock Inc.
Insider transaction activity
Mixed, sale-heavy
$23.61M sold / $64.89K bought
Observations shown
57
10 holder / 47 insider
- Holder rows
- 10
- Yahoo Finance · Filing dates shown per row
- Increased / initiated
- 8
- 2 decreased · provider-reported changes
- Insider rows
- 47
- Yahoo Finance · Filing dates shown per row
Ownership concentration and transaction activity
- Top 10 reported holders
- 42.18% outstanding
- Changes with share-count history
- Prior-position data unavailable
- New / exited positions
- 0 / 0 explicitly reported
- Largest increase with share-count history
- Prior share counts unavailable
These changes cover the holders shown. A holder missing from this list may still own shares. Compare positions from the same reporting quarters.
Net shares sold: 1,255,963
Sale-code S shares minus purchase-code P shares in this sample. Includes disclosed plans and unknown plan status; excludes grants, gifts, exercises and withholding. This is activity, not sentiment.
- Gift: 1
- Purchase / sale; plan unknown: 19
- Grant: 23
- Other / unclassified: 4
Top 10 institutional holders
Riot Platforms (RIOT) institutional ownership
Ranked by reported share count, with position changes and separate position and filing dates where ownership data supplies them.
| # | Institution | % held | Shares | Change % | Position / filing date |
|---|---|---|---|---|---|
| 1 | 8.52% | 31.98M | +7.86% | Position as of Jun 30, 2026Filing date unknown | |
| 2 | 5.79% | 21.73M | +0.18% | Position as of Jun 30, 2026Filing date unknown | |
| 3 | 5.24% | 19.65M | +30.84% | Position as of Jun 30, 2026Filing date unknown | |
| 4 | Situational Awareness LP | 4.56% | 17.10M | +48.67% | Position as of Jun 30, 2026Filing date unknown |
| 5 | Jane Street Group, LLC | 4.48% | 16.83M | +127.81% | Position as of Jun 30, 2026Filing date unknown |
| 6 | 4.04% | 15.15M | +1.89% | Position as of Jun 30, 2026Filing date unknown | |
| 7 | Starboard Value LP | 2.70% | 10.11M | -34.93% | Position as of Jun 30, 2026Filing date unknown |
| 8 | 2.52% | 9.44M | +2.71% | Position as of Jun 30, 2026Filing date unknown | |
| 9 | 2.47% | 9.28M | +3.47% | Position as of Jun 30, 2026Filing date unknown | |
| 10 | 1.86% | 6.99M | -0.41% | Position as of Jun 30, 2026Filing date unknown |
Recent insider transactions
Riot Platforms (RIOT) Form 4 filings
Action codes are translated so open-market buys and sales are separate from awards, gifts, conversions, and tax withholding.
| # | Insider | % company | Action | Shares | Transaction date |
|---|---|---|---|---|---|
| 1 | HOWELL STEPHEN MITCHELL JR Chief Operating Officer | <0.01% | Stock GiftTransaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 21.20K | Aug 12, 2026 |
| 2 | WERNER RYAN D. Officer | 0.01% | SaleOpen-market or direct sale reported on Form 4.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 47.73K | Aug 5, 2026 |
| 3 | WERNER RYAN D. Officer | <0.01% | SaleOpen-market or direct sale reported on Form 4.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 17.83K | Jul 7, 2026 |
| 4 | TURNER MICHAEL JOHN Director | <0.01% | Stock Award(Grant)Transaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 8.35K | Jul 1, 2026 |
| 5 | MOUTON DOUGLAS Director | <0.01% | Stock Award(Grant)Transaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 8.35K | Jul 1, 2026 |
| 6 | YEE COLIN M. Affiliated Person | 0.03% | OtherTransaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 124.82K | Jul 1, 2026 |
| 7 | D'AMBROSIO LANCE VARRO Director | <0.01% | Stock Award(Grant)Transaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 8.35K | Jul 1, 2026 |
| 8 | LEVERTON JAIME MARGOT JENNIE Director | <0.01% | Stock Award(Grant)Transaction code reported in the data source. Check the original Form 4 filing for details.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 8.35K | Jul 1, 2026 |
| 9 | LES JASON Chief Executive Officer | 0.02% | SaleOpen-market or direct sale reported on Form 4.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 62.70K | Jun 22, 2026 |
| 10 | WERNER RYAN D. Officer | <0.01% | SaleOpen-market or direct sale reported on Form 4.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 25.38K | Jun 22, 2026 |
| 11 | WERNER RYAN D. Officer | 0.01% | SaleOpen-market or direct sale reported on Form 4.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 37.62K | May 27, 2026 |
| 12 | LES JASON Chief Executive Officer | 0.05% | SaleOpen-market or direct sale reported on Form 4.Transaction context
Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership. | 175.00K | May 11, 2026 |
Frequently asked
Questions about this quote
Who are the largest RIOT shareholders?
Blackrock Inc. is the largest reported institutional holder of RIOT, with 31.98 million shares, or about 8.52% of shares outstanding.
What does the institutional filing activity show for RIOT?
Riot Platforms has 10 institutional rows on file: 8 increased or initiated positions and 2 reduced them.
What insider transactions are available for RIOT?
TECHi shows 47 dated RIOT insider transactions through Aug 12, 2026, with transaction types kept separate so administrative actions are not presented as open-market trades.
Are RIOT insiders buying or selling?
The displayed RIOT activity reads Mixed, sale-heavy: 18 sales and 1 purchase. Other transaction types remain separate.
Who is the most active reported RIOT insider?
LES JASON has the largest absolute share movement in the displayed RIOT filing rows, totaling 1.96 million shares. The action labels provide the transaction context.
All data sources
Search the dated figures used for this view. Each entry identifies its units, reporting period and calculation status.
What this page answers
Check who owns the float and whether insiders are active.
Explore Institutional concentration, insider transaction pattern, and float context.
Keep in mind Filings are delayed or transactions are administrative rather than economic.
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Next open: 2026-10-15 · 9:30 AM America/New_York
Exchange calendar includes scheduled holidays and early closes. Extended-session prices appear separately only when supplied by the quote source.
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