RIOT PLATFORMS INC (RIOT): Ownership & Insider Activity
Hedge funds and institutional managers reporting a position in RIOT · Information Technology. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
27
13F filers
Aggregate Value
$1.1B
Across holders
Last Price
$20.00
2026-08-24
Sector
Information Technology
GICS
Quarterly fund activity16 increased8 reduced1 exited
Full exits: TUDOR INVESTMENT CORP ET AL
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| Starboard Value LP CIK 0001517137 | Hedge Fund | 10.11M | $276.9M | 26.3% | 6.1% | Reduced | $-148.7M | Q2 2026 |
| SHAW D E & CO INC CIK 0001009207 | Hedge Fund | 5.46M | $149.4M | 14.2% | 0.1% | Unchanged | +$0 | Q2 2026 |
| Point72 Asset Management, L.P. CIK 0001603466 | Hedge Fund | 3.71M | $101.7M | 9.7% | 0.1% | Added | +$97.3M | Q2 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 3.63M | $99.5M | 9.4% | 0.1% | Added | +$88.6M | Q2 2026 |
| Sachem Head Capital Management LP CIK 0001582090 | Hedge Fund | 2.87M | $78.4M | 7.5% | 1.6% | Added | — | Q2 2026 |
| Egerton Capital (UK) LLP CIK 0001581811 | Hedge Fund | 2.63M | $72.0M | 6.8% | 0.7% | Added | — | Q2 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 2.00M | $54.6M | 5.2% | 0.0% | Reduced | $-129.1M | Q2 2026 |
| MILLENNIUM MANAGEMENT LLC CIK 0001273087 | Hedge Fund | 1.67M | $45.9M | 4.4% | 0.0% | Added | +$31.8M | Q2 2026 |
| MOORE CAPITAL MANAGEMENT, LP CIK 0001448574 | Hedge Fund | 1.44M | $39.5M | 3.8% | 0.6% | Reduced | $-15.5M | Q2 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 1.31M | $35.9M | 3.4% | 0.0% | Added | +$35.8M | Q2 2026 |
Reduced
Hedge Fund
$276.9M· 26.3% of total· 6.1% port· 10.11M sh· $-148.7M QoQ· Q2 2026
Unchanged
Hedge Fund
$149.4M· 14.2% of total· 0.1% port· 5.46M sh· +$0 QoQ· Q2 2026
Added
Hedge Fund
$101.7M· 9.7% of total· 0.1% port· 3.71M sh· +$97.3M QoQ· Q2 2026
Added
Hedge Fund
$99.5M· 9.4% of total· 0.1% port· 3.63M sh· +$88.6M QoQ· Q2 2026
Added
Hedge Fund
$78.4M· 7.5% of total· 1.6% port· 2.87M sh· — QoQ· Q2 2026
Added
Hedge Fund
$72.0M· 6.8% of total· 0.7% port· 2.63M sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$54.6M· 5.2% of total· 0.0% port· 2.00M sh· $-129.1M QoQ· Q2 2026
Added
Hedge Fund
$45.9M· 4.4% of total· 0.0% port· 1.67M sh· +$31.8M QoQ· Q2 2026
Reduced
Hedge Fund
$39.5M· 3.8% of total· 0.6% port· 1.44M sh· $-15.5M QoQ· Q2 2026
Added
Hedge Fund
$35.9M· 3.4% of total· 0.0% port· 1.31M sh· +$35.8M QoQ· Q2 2026
Added
Hedge Fund
$25.4M· 2.4% of total· 0.0% port· 927K sh· — QoQ· Q2 2026
Added
Family Office
$20.7M· 2.0% of total· 0.4% port· 755K sh· — QoQ· Q2 2026
Added
Hedge Fund
$10.6M· 1.0% of total· 0.0% port· 387K sh· — QoQ· Q2 2026
Added
Hedge Fund
$8.1M· 0.8% of total· 0.0% port· 296K sh· +$6.9M QoQ· Q2 2026
Added
Hedge Fund
$7.6M· 0.7% of total· 0.0% port· 279K sh· +$7.1M QoQ· Q2 2026
Unchanged
Hedge Fund
$6.9M· 0.7% of total· 0.0% port· 251K sh· +$0 QoQ· Q2 2026
Added
Hedge Fund
$5.5M· 0.5% of total· 0.0% port· 200K sh· +$4.3M QoQ· Q2 2026
Reduced
Hedge Fund
$4.4M· 0.4% of total· 0.0% port· 162K sh· $-7.1M QoQ· Q2 2026
Added
Hedge Fund
$4.4M· 0.4% of total· 0.0% port· 159K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$1.9M· 0.2% of total· 0.0% port· 70K sh· $-28K QoQ· Q2 2026
Reduced
Hedge Fund
$930K· 0.1% of total· 0.0% port· 34K sh· +$123K QoQ· Q2 2026
Reduced
Hedge Fund
$805K· 0.1% of total· 0.0% port· 29K sh· $-3.5M QoQ· Q2 2026
Added
Hedge Fund
$548K· 0.1% of total· 0.0% port· 20K sh· — QoQ· Q2 2026
Added
Hedge Fund
$455K· 0.0% of total· 0.0% port· 17K sh· $-4.9M QoQ· Q2 2026
Added
Hedge Fund
$389K· 0.0% of total· 0.0% port· 14K sh· $-93K QoQ· Q2 2026
Reduced
Hedge Fund
$175K· 0.0% of total· 0.0% port· 6K sh· $-110K QoQ· Q2 2026
Unchanged
Hedge Fund
$1K· 0.0% of total· 0.0% port· 40 sh· +$0 QoQ· Q2 2026
1–10 of 27
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