Who owns Riot Platforms (RIOT)?
122 holders named in SEC filings declare between 76.1% and 88.5% of Riot Platforms' shares outstanding, as of Aug 12, 2026. The largest are Vanguard (10.5%), BlackRock (8.5%) and Fidelity (FMR) (5.2%); the five largest hold 33.3% together. Another 330 institutions hold small positions worth 2.4%. At least 9.2% of the shares appear in no ownership filing: investors who do not have to report, mostly individuals. From Mar 31, 2026 to Jun 30, 2026, institutions that filed both quarters bought 19.2% and sold 11.8% of the shares, a net purchase of 7.4%; 99 opened a position, 141 added, 125 reduced and 55 sold out. Biggest buyers: Jane Street (+9.4M shares) and TOMS Capital Investment Management LP (+5.9M shares). Biggest sellers: Starboard Value LP (-5.4M) and NOMURA HOLDINGS INC (-5.0M). Schedule 13D/G filings since Mar 31, 2026: FMR LLC raised its stake to 7.9% on Jun 30, 2026 and JANE STREET GROUP, LLC raised its stake to 5.4% on May 5, 2026. Directors and officers, from their latest Form 4: Soo il Benjamin Yi (2.8%), Jason Les (1.7%) and Jason Chung (0.83%). Over time, 437 managers declared Riot Platforms in their 13F for Q2 2026, against 22 for Q4 2019: together at most 83.3% of the shares outstanding, against 0.64%.
| Holder | Filing | Share of capital | As of | Holding since (13F) |
|---|---|---|---|---|
| Vanguard | 13F | 10.5% | Jun 30, 2026 | Q4 2019 or earlier |
| BlackRock | 13F | 8.5% | Jun 30, 2026 | Q4 2019 or earlier |
| Fidelity (FMR) | 13F | 5.2% | Jun 30, 2026 | Q1 2021 |
| Situational Awareness LP | 13F | 4.6% | Jun 30, 2026 | Q3 2025 |
| Jane Street | 13F | 4.5% | Jun 30, 2026 | Q4 2020 |
| Soo il Benjamin Yi | Form 4 | 2.8% | Jan 1, 2026 | — |
| Starboard Value LP | 13F | 2.7% | Jun 30, 2026 | Q4 2024 |
| State Street | 13F | 2.5% | Jun 30, 2026 | Q4 2020 |
| Geode Capital | 13F | 2.5% | Jun 30, 2026 | Q4 2019 or earlier |
| Dimensional | 13F | 1.9% | Jun 30, 2026 | Q4 2022 |
| T. Rowe Price | 13F | 1.7% | Jun 30, 2026 | Q1 2021 |
| Jason Les | Form 4 | 1.7% | Jul 31, 2026 | — |
| TOMS Capital Investment Management LP | 13F | 1.6% | Jun 30, 2026 | Q2 2026 |
| D. E. Shaw | 13F | 1.5% | Jun 30, 2026 | Q4 2024 |
| Bank of America | 13F | 1.4% | Jun 30, 2026 | Q4 2019 or earlier |
| MIZUHO MARKETS AMERICAS LLC | 13F | 1.4% | Jun 30, 2026 | Q4 2024 |
| NOMURA HOLDINGS INC | 13F | 1.3% | Jun 30, 2026 | Q1 2024 |
| SG Americas Securities, LLC | 13F | 1.3% | Jun 30, 2026 | Q4 2023 |
| American Century Companies, Inc. | 13F | 1.2% | Jun 30, 2026 | Q3 2022 |
| Goldman Sachs | 13F | 1.1% | Jun 30, 2026 | Q3 2020 |
| Invesco | 13F | 1.1% | Jun 30, 2026 | Q1 2021 |
| Point72 | 13F | 0.99% | Jun 30, 2026 | Q2 2026 |
| Two Sigma | 13F | 0.97% | Jun 30, 2026 | Q2 2025 |
| Morgan Stanley | 13F | 0.91% | Jun 30, 2026 | Q4 2019 or earlier |
| Wellington | 13F | 0.91% | Jun 30, 2026 | Q3 2025 |
Riot Platforms institutional ownership over time
| Quarter | 13F managers | Share of the company (upper bound) | Value declared | Held by stock pickers |
|---|---|---|---|---|
| Q4 2019 | 22 | 0.64% | $2.7M | 18.9% |
| Q4 2020 | 87 | 4.3% | $272.2M | 26.0% |
| Q4 2021 | 215 | 36.6% | $949.1M | 27.2% |
| Q4 2022 | 221 | 36.8% | $208.7M | 21.8% |
| Q4 2023 | 272 | 50.1% | $1.6B | 30.3% |
| Q4 2024 | 314 | 58.1% | $2.0B | 42.8% |
| Q4 2025 | 378 | 71.8% | $3.4B | 53.5% |
| Q2 2026 | 437 | 83.3% | $8.7B | 52.6% |
From SEC Form 13F, every quarter since the end of 2019, read like the current quarter: entities of a house summed, a value contradicting its share count set aside. The share of the company is an upper bound — two managers can declare the same shares — over the shares outstanding at that date.