Who owns Riot Platforms (RIOT)
Which tracked institutional funds hold RIOT, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See RIOT company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on RIOT is one-sided between 2026-Q1 and 2026-Q2: 203 added or opened and 59 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
RIOT’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes RIOT more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in RIOT divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 423 tracked filers holding RIOT, 252 increased or opened the position and 214 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in RIOT between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 42
- TOMS Capital Investment Management LP$161M
- Sachem Head Capital Management LP$78M
- Egerton Capital (UK) LLP$72M
- Columbus Hill Capital Management, L.P.$43M
- THAMES CAPITAL MANAGEMENT LLC$33M
- RENAISSANCE TECHNOLOGIES LLC$25M
Full exits 38
- Situational Awareness Partners LP$142M
- T. Rowe Price Investment Management, Inc.$47M
- Azora Capital LP$46M
- MARK ASSET MANAGEMENT LP$22M
- CLEARFIELD CAPITAL MANAGEMENT LP$11M
- SEGALL BRYANT & HAMILL, LLC$9M
Largest adds
- BlackRock, Inc.$688M
- JANE STREET GROUP, LLC$369M
- FMR LLC$355M
- VANGUARD PORTFOLIO MANAGEMENT LLC$327M
- Situational Awareness LP$326M
- VANGUARD CAPITAL MANAGEMENT LLC$231M
Largest trims
- Defiance ETFs, LLC$30M
- Senator Investment Group LP$17M
- WESTFIELD CAPITAL MANAGEMENT CO LP$16M
- LMR Partners LLP$7M
- EverSource Wealth Advisors, LLC$7M
- Edgestream Partners, L.P.$5M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 31,984,547 | $876M | 10.9% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 21,725,129 | $595M | 7.4% | 2026-Q2 |
| FMR LLC added | 19,645,295 | $538M | 6.7% | 2026-Q2 |
| Situational Awareness LP added | 17,100,000 | $468M | 5.8% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 16,826,113 | $461M | 5.7% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 15,146,138 | $415M | 5.2% | 2026-Q2 |
| Starboard Value LP trimmed | 10,114,576 | $277M | 3.5% | 2026-Q2 |
| STATE STREET CORP added | 9,438,485 | $258M | 3.2% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 9,275,453 | $288M | 3.6% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 6,987,744 | $191M | 2.4% | 2026-Q2 |
| TOMS Capital Investment Management LP added | 5,875,000 | $161M | 2.0% | 2026-Q2 |
| D. E. Shaw & Co., Inc. | 5,455,200 | $149M | 1.9% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 5,222,018 | $143M | 1.8% | 2026-Q2 |
| MIZUHO MARKETS AMERICAS LLC added | 5,140,890 | $141M | 1.8% | 2026-Q2 |
| NOMURA HOLDINGS INC trimmed | 4,917,342 | $135M | 1.7% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC added | 4,583,733 | $126M | 1.6% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 4,239,444 | $116M | 1.4% | 2026-Q2 |
| Invesco Ltd. added | 3,959,103 | $108M | 1.4% | 2026-Q2 |
| Point72 Asset Management, L.P. added | 3,714,879 | $102M | 1.3% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 3,632,510 | $99M | 1.2% | 2026-Q2 |
| MORGAN STANLEY added | 3,425,574 | $94M | 1.2% | 2026-Q2 |
| WELLINGTON MANAGEMENT GROUP LLP added | 3,412,258 | $93M | 1.2% | 2026-Q2 |
| Connor, Clark & Lunn Investment Management Ltd. added | 3,393,623 | $93M | 1.2% | 2026-Q2 |
| Value Aligned Research Advisors, LLC trimmed | 3,290,544 | $90M | 1.1% | 2026-Q2 |
| NORTHERN TRUST CORP added | 3,278,125 | $90M | 1.1% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 3,235,766 | $89M | 1.1% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC added | 3,185,945 | $87M | 1.1% | 2026-Q2 |
| Sachem Head Capital Management LP new | 2,865,000 | $78M | 1.0% | 2026-Q2 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND added | 2,748,003 | $75M | 0.9% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 2,669,062 | $73M | 0.9% | 2026-Q2 |
| Egerton Capital (UK) LLP new | 2,628,731 | $72M | 0.9% | 2026-Q2 |
| VAN ECK ASSOCIATES CORP trimmed | 2,359,375 | $65M | 0.8% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 2,294,098 | $63M | 0.8% | 2026-Q2 |
| Tidal Investments LLC trimmed | 2,098,217 | $57M | 0.7% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 1,995,548 | $55M | 0.7% | 2026-Q2 |
| CIBC Bancorp USA Inc. added | 1,870,273 | $51M | 0.6% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 1,674,900 | $46M | 0.6% | 2026-Q2 |
| Columbus Hill Capital Management, L.P. new | 1,567,657 | $43M | 0.5% | 2026-Q2 |
| MOORE CAPITAL MANAGEMENT, LP trimmed | 1,441,695 | $39M | 0.5% | 2026-Q2 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ trimmed | 1,373,660 | $38M | 0.5% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 1,347,142 | $37M | 0.5% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 1,310,980 | $36M | 0.4% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 1,295,533 | $36M | 0.5% | 2026-Q2 |
| FRANKLIN RESOURCES INC added | 1,280,541 | $35M | 0.4% | 2026-Q2 |
| Bank of New York Mellon Corp added | 1,240,553 | $34M | 0.4% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 1,232,961 | $34M | 0.4% | 2026-Q2 |
| UBS Group AG trimmed | 1,224,750 | $34M | 0.4% | 2026-Q2 |
| THAMES CAPITAL MANAGEMENT LLC added | 1,201,609 | $33M | 0.4% | 2026-Q2 |
| Nuveen, LLC added | 1,088,095 | $30M | 0.4% | 2026-Q2 |
| Broad Peak Investment Advisers Pte Ltd trimmed | 1,049,500 | $29M | 0.4% | 2026-Q2 |
| WESTFIELD CAPITAL MANAGEMENT CO LP trimmed | 1,013,804 | $28M | 0.3% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 926,749 | $25M | 0.3% | 2026-Q2 |
| Vident Advisory, LLC trimmed | 864,320 | $24M | 0.3% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 819,561 | $22M | 0.3% | 2026-Q2 |
| Bitwise Funds Trust new | 808,632 | $22M | 0.3% | 2026-Q2 |
| EXCHANGE TRADED CONCEPTS, LLC trimmed | 778,309 | $21M | 0.3% | 2026-Q2 |
| Duquesne Family Office LLC new | 754,800 | $21M | 0.3% | 2026-Q2 |
| MetLife Investment Management, LLC trimmed | 738,812 | $20M | 0.3% | 2026-Q2 |
| Trexquant Investment LP added | 718,020 | $20M | 0.2% | 2026-Q2 |
| Swiss National Bank added | 681,100 | $19M | 0.2% | 2026-Q2 |
| Public Sector Pension Investment Board new | 627,000 | $17M | 0.2% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 558,425 | $15M | 0.2% | 2026-Q2 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. trimmed | 552,428 | $15M | 0.2% | 2026-Q2 |
| KENNEDY CAPITAL MANAGEMENT LLC new | 547,785 | $15M | 0.2% | 2026-Q2 |
| VOYA INVESTMENT MANAGEMENT LLC trimmed | 523,687 | $14M | 0.2% | 2026-Q2 |
| VICTORY CAPITAL MANAGEMENT INC added | 517,693 | $14M | 0.2% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 517,297 | $14M | 0.2% | 2026-Q2 |
| Alberta Investment Management Corp new | 516,500 | $14M | 0.2% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 483,649 | $13M | 0.2% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 464,292 | $13M | 0.2% | 2026-Q2 |
| BARCLAYS PLC added | 463,550 | $13M | 0.2% | 2026-Q2 |
| Apis Capital Advisors, LLC added | 450,000 | $12M | 0.2% | 2026-Q2 |
| Krane Funds Advisors LLC added | 437,926 | $12M | 0.1% | 2026-Q2 |
| FIRST TRUST ADVISORS LP added | 424,602 | $12M | 0.1% | 2026-Q2 |
| Metavasi Capital LP added | 416,000 | $11M | 0.1% | 2026-Q2 |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main trimmed | 411,042 | $11M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 393,318 | $11M | 0.1% | 2026-Q2 |
| Galaxy Digital Capital Management GP LLC trimmed | 390,786 | $11M | 0.1% | 2026-Q2 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed | 387,073 | $11M | 0.1% | 2026-Q2 |
| FORA Capital, LLC added | 375,850 | $10M | 0.1% | 2026-Q2 |
| STATE OF WISCONSIN INVESTMENT BOARD added | 350,759 | $10M | 0.1% | 2026-Q2 |
| Marex Group Ltd trimmed | 345,309 | $9M | 0.1% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 342,673 | $9M | 0.1% | 2026-Q2 |
| Clear Street Group Inc. trimmed | 339,843 | $9M | 0.1% | 2026-Q2 |
| CANTOR FITZGERALD, L. P. trimmed | 328,305 | $9M | 0.1% | 2026-Q2 |
| ALGERT GLOBAL LLC added | 327,291 | $9M | 0.1% | 2026-Q2 |
| CITIGROUP INC added | 326,703 | $9M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 321,841 | $9M | 0.1% | 2026-Q2 |
| GMT Capital Corp | 308,600 | $8M | 0.1% | 2026-Q2 |
| Korea Investment CORP trimmed | 307,539 | $8M | 0.1% | 2026-Q2 |
| Moody Aldrich Partners LLC trimmed | 300,390 | $8M | 0.1% | 2026-Q2 |
| Quadrature Capital Ltd added | 298,895 | $8M | 0.1% | 2026-Q2 |
| Man Group plc added | 296,455 | $8M | 0.1% | 2026-Q2 |
| OCCUDO QUANTITATIVE STRATEGIES LP new | 286,137 | $8M | 0.1% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. added | 278,936 | $8M | 0.1% | 2026-Q2 |
| Legal & General Group Plc trimmed | 276,600 | $8M | 0.1% | 2026-Q2 |
| Axxion S.A. new | 270,000 | $7M | 0.1% | 2026-Q2 |
| NATIONAL BANK OF CANADA /FI/ added | 265,000 | $7M | 0.1% | 2026-Q2 |
| IMC-Chicago, LLC trimmed | 259,086 | $7M | 0.1% | 2026-Q2 |
| Woodline Partners LP | 250,861 | $7M | 0.1% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.