RIOT PLATFORMS INC (RIOT) Institutional Shareholders
RIOT PLATFORMS INC (RIOT) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $3.67B in RIOT holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of RIOT tracked by InsiderSet, reporting ownership valued at approximately $366.51M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $598.10M, representing an estimated gain of +63.19% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 51% of the total disclosed RIOT value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Portfolio Management Llc, Starboard Value Lp, and several other long-term asset managers with concentrated positions in RIOT PLATFORMS INC (RIOT).
This page ranks the largest institutional RIOT shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
405
Total Reported Value
$3.67B
Largest Holder
Blackrock, Inc.
Largest Position
$366.51M
Insider Transactions (90d)
13
Latest Filing Quarter
Q2 2026
New Institutional Positions
85
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 29,652,705 | $366,507,434 | $598,095,060 | +$231,587,626 | +63.19% | |
| Vanguard Portfolio Management Llc | 0.01% | 21,685,659 | $268,034,745 | $437,399,742 | +$169,364,997 | +63.19% | |
| Starboard Value Lp | 4.21% | 15,544,576 | $192,130,959 | $313,534,098 | +$121,403,139 | +63.19% | |
| Fmr Llc | 0.01% | 15,014,625 | $185,580,765 | $302,844,986 | +$117,264,221 | +63.19% | |
| Vanguard Capital Management Llc | 0.00% | 14,865,081 | $183,732,401 | $299,828,684 | +$116,096,283 | +63.19% | |
| Situational Awareness Partners | Leopold Aschenbrenner | 3.69% | 11,502,137 | $142,166,413 | $231,998,103 | +$89,831,690 | +63.19% |
| Situational Awareness Partners Lp | 3.69% | 11,502,137 | $142,166,413 | $231,998,103 | +$89,831,690 | +63.19% | |
| Mizuho Markets Americas Llc | 2.52% | 5,140,890 | $140,757,568 | $103,691,751 | -$37,065,817 | -26.33% | |
| Nomura Holdings Inc | 1.02% | 9,905,139 | $122,427,518 | $199,786,654 | +$77,359,136 | +63.19% | |
| State Street Corp | 0.00% | 9,189,730 | $113,585,063 | $185,356,854 | +$71,771,791 | +63.19% | |
| Geode Capital Management, Llc | 0.01% | 8,964,468 | $110,818,745 | $180,813,320 | +$69,994,575 | +63.16% | |
| Jane Street Group, Llc | 0.10% | 7,385,953 | $91,290,379 | $148,974,672 | +$57,684,293 | +63.19% | |
| Dimensional Fund Advisors Lp | 0.02% | 7,016,451 | $86,704,767 | $141,521,817 | +$54,817,050 | +63.22% | |
| Egerton Capital UK | John Armitage | 0.70% | 2,628,731 | $71,974,655 | $53,021,504 | -$18,953,151 | -26.33% |
| D. E. Shaw & Co., Inc. | 0.05% | 5,455,200 | $67,426,272 | $110,031,384 | +$42,605,112 | +63.19% | |
| Value Aligned Research Advisors, Llc | 0.76% | 5,176,918 | $63,986,706 | $104,418,436 | +$40,431,730 | +63.19% | |
| Bank Of America Corp | 0.00% | 4,036,522 | $49,891,412 | $81,416,649 | +$31,525,237 | +63.19% | |
| Goldman Sachs Group Inc | 0.01% | 3,808,804 | $47,076,820 | $76,823,577 | +$29,746,757 | +63.19% | |
| Azora Capital Lp | 3.03% | 3,732,717 | $46,136,382 | $75,288,902 | +$29,152,520 | +63.19% | |
| Westfield Capital Management Co Lp | 0.18% | 3,499,880 | $43,258,517 | $70,592,580 | +$27,334,063 | +63.19% | |
| Charles Schwab Investment Management Inc | 0.01% | 3,186,828 | $39,389,194 | $64,278,321 | +$24,889,127 | +63.19% | |
| Morgan Stanley | 0.00% | 3,035,964 | $37,524,540 | $61,235,394 | +$23,710,854 | +63.19% | |
| Northern Trust Corp | 0.00% | 3,028,288 | $37,429,640 | $61,080,569 | +$23,650,929 | +63.19% | |
| Principal Financial Group Inc | 0.02% | 2,957,456 | $36,554,156 | $59,651,888 | +$23,097,732 | +63.19% | |
| Citadel Advisors Llc | 0.03% | 2,908,767 | $35,952,360 | $58,669,830 | +$22,717,470 | +63.19% | |
| Ameriprise Financial Inc | 0.01% | 2,788,331 | $34,463,772 | $56,240,636 | +$21,776,864 | +63.19% | |
| Massachusetts Financial Services Co | 0.01% | 2,724,895 | $33,679,702 | $54,961,132 | +$21,281,430 | +63.19% | |
| Invesco Ltd. | 0.01% | 2,707,365 | $33,463,031 | $54,607,552 | +$21,144,521 | +63.19% | |
| Defiance Etfs, Llc | 0.48% | 2,705,786 | $33,443,515 | $54,575,704 | +$21,132,189 | +63.19% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.08% | 2,635,358 | $32,573,025 | $53,155,171 | +$20,582,146 | +63.19% | |
| Tidal Investments Llc | 0.09% | 2,394,750 | $29,599,111 | $48,302,108 | +$18,702,997 | +63.19% | |
| Broad Peak Investment Advisers Pte Ltd | 5.28% | 1,049,500 | $28,735,310 | $21,168,415 | -$7,566,895 | -26.33% | |
| Ubs Group Ag | 0.00% | 2,212,913 | $27,351,605 | $44,634,455 | +$17,282,850 | +63.19% | |
| American Century Companies Inc | 0.01% | 2,148,272 | $26,552,667 | $43,330,646 | +$16,777,979 | +63.19% | |
| Vanguard Fiduciary Trust Co | 0.01% | 2,106,604 | $26,037,625 | $42,490,203 | +$16,452,578 | +63.19% | |
| Moore Capital Management, Lp | 0.90% | 2,006,343 | $24,798,399 | $40,467,938 | +$15,669,539 | +63.19% | |
| Cibc Bancorp Usa Inc. | 0.03% | 1,868,192 | $23,090,853 | $37,681,433 | +$14,590,580 | +63.19% | |
| Mark Asset Management Lp | 2.86% | 1,740,320 | $21,510,355 | $35,102,254 | +$13,591,899 | +63.19% | |
| Exchange Traded Concepts, Llc | 0.11% | 778,309 | $21,310,100 | $15,698,493 | -$5,611,607 | -26.33% | |
| Wellington Management Group Llp | 0.00% | 1,618,318 | $20,002,410 | $32,641,474 | +$12,639,064 | +63.19% | |
| Senator Investment Group Lp | 0.85% | 1,500,000 | $18,547,500 | $30,255,000 | +$11,707,500 | +63.12% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.02% | 1,452,836 | $17,955,280 | $29,303,702 | +$11,348,422 | +63.20% | |
| Millennium Management Llc | 0.01% | 1,238,906 | $15,312,878 | $24,988,734 | +$9,675,856 | +63.19% | |
| Bank Of New York Mellon Corp | 0.00% | 1,150,350 | $14,218,324 | $23,202,560 | +$8,984,236 | +63.19% | |
| Metlife Investment Management, Llc | 0.06% | 957,259 | $11,831,721 | $19,307,914 | +$7,476,193 | +63.19% | |
| Vident Advisory, Llc | 0.10% | 918,755 | $11,355,812 | $18,531,288 | +$7,175,476 | +63.19% | |
| Nuveen, Llc | 0.00% | 892,725 | $11,034,081 | $18,006,263 | +$6,972,182 | +63.19% | |
| Clearfield Capital Management Lp | 5.96% | 879,182 | $10,866,690 | $17,733,101 | +$6,866,411 | +63.19% | |
| Bit Capital Gmbh | 0.56% | 813,835 | $10,059,001 | $16,415,052 | +$6,356,051 | +63.19% | |
| Healthcare Of Ontario Pension Plan Trust Fund | 0.02% | 806,000 | $9,962,160 | $16,257,020 | +$6,294,860 | +63.19% |
Frequently asked questions about RIOT
Who owns the most RIOT stock?
The largest holders of RIOT are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for RIOT PLATFORMS INC (RIOT).
Is RIOT widely held by superinvestors?
Many widely followed stocks like RIOT appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly RIOT is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.