Riot Platforms, Inc.
IT ˙ BIT ˙ US7672921050
24,31 € ↑0,91 (3,89%)
2026-06-02
DEL PRIS
SecurityIT:1RIOT / Riot Platforms, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership312,912 shares
Latest Disclosed Value $ 3,867,592
Citigroup Inc ownership in 1RIOT / Riot Platforms, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 312,912 shares of Riot Platforms, Inc. (IT:1RIOT) valued at $3,315,616 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 191,360 shares of Riot Platforms, Inc.. This represents a change in shares of 63.52% during the quarter. The current value of the position is $7,606,891 USD.

Citigroup Inc has a history of taking positions in derivatives of the underlying security (1RIOT) in the form of stock options. The firm currently holds call options representing 473,700 of underlying shares valued at $5,854,932 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

IT:1RIOT / Riot Platforms, Inc. Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-11 2026-03-31 13F RIOT PLATFORMS COM 767292105 312,912 121,552 63.52 3,868 59.53 0.0016
2026-02-13 2025-12-31 13F RIOT PLATFORMS COM 767292105 191,360 12,200 6.81 2,425 -28.89 0.0011
2025-11-10 2025-09-30 13F RIOT PLATFORMS COM 767292105 179,160 -27,174 -13.17 3,409 46.25 0.0015
2025-08-11 2025-06-30 13F RIOT PLATFORMS COM 767292105 206,334 -122,710 -37.29 2,332 -0.47 0.0011
2025-05-12 2025-03-31 13F RIOT PLATFORMS COM 767292105 329,044 88,820 36.97 2,343 -4.49 0.0012
2025-02-12 2024-12-31 13F RIOT PLATFORMS COM 767292105 240,224 15,162 6.74 2,453 46.91 0.0015
2024-11-12 2024-09-30 13F RIOT PLATFORMS COM 767292105 225,062 161,284 252.88 1,670 186.77 0.0010
2024-08-12 2024-06-30 13F RIOT PLATFORMS COM 767292105 63,778 -30,523 -32.37 583 -49.57 0.0004
2024-05-10 2024-03-31 13F RIOT PLATFORMS COM 767292105 94,301 65,350 225.73 1,154 158.17 0.0008
2024-02-09 2023-12-31 13F RIOT PLATFORMS COM 767292105 28,951 28,362 4,815.28 448 8,840.00 0.0003
2023-12-06 2023-09-30 13F/A-1 RIOT PLATFORMS COM 767292105 589 -57,000 -98.98 5 -99.26 0.0000
2023-11-09 2023-09-30 13F RIOT PLATFORMS COM 767292105 589 -57,000 5 0.0000
2023-08-10 2023-06-30 13F RIOT PLATFORMS COM 767292105 57,589 50,525 715.25 681 871.43 0.0004
2023-05-11 2023-03-31 13F RIOT PLATFORMS COM 767292105 7,064 2,104 42.42 71 337.50 0.0000
2023-02-09 2022-12-31 13F RIOT BLOCKCHAIN COM 767292105 4,960 -1,736 -25.93 17 -65.96 0.0000
2022-11-10 2022-09-30 13F RIOT BLOCKCHAIN COM 767292105 6,696 -466,343 -98.58 47 -97.63 0.0000
2022-08-10 2022-06-30 13F RIOT BLOCKCHAIN COM 767292105 473,039 460,864 3,785.33 1,982 668.22 0.0015
2022-05-12 2022-03-31 13F RIOT BLOCKCHAIN COM 767292105 12,175 -12,369 -50.40 258 -52.92 0.0002
2022-02-10 2021-12-31 13F RIOT BLOCKCHAIN COM 767292105 24,544 -12,518 -33.78 548 -42.44 0.0003
2021-11-10 2021-09-30 13F RIOT BLOCKCHAIN COM 767292105 37,062 -55,790 -60.08 952 -72.78 0.0006
2021-08-10 2021-06-30 13F RIOT BLOCKCHAIN COM 767292105 92,852 92,102 12,280.27 3,498 8,645.00 0.0021
2021-05-13 2021-03-31 13F RIOT BLOCKCHAIN COM 767292105 750 -42,972 -98.28 40 -94.62 0.0000
2021-02-11 2020-12-31 13F RIOT BLOCKCHAIN COM 767292105 43,722 43,722 743 0.0004
2019-05-13 2019-03-31 13F RIOT BLOCKCHAIN COM 767292105 0 -600 -100.00 0 -100.00
2019-02-12 2018-12-31 13F RIOT BLOCKCHAIN COM 767292105 600 600 1 0.0000
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-11 2026-03-31 13F RIOT PLATFORMS COM Call 473,700 834.32 5,855 811.84 n/a n/a n/a
2026-02-13 2025-12-31 13F RIOT PLATFORMS COM Call 50,700 -95.23 642 -96.83 n/a n/a n/a
2025-11-10 2025-09-30 13F RIOT PLATFORMS COM Call 1,064,000 288.75 20,248 554.82 n/a n/a n/a
2025-08-11 2025-06-30 13F RIOT PLATFORMS COM Call 273,700 -8.77 3,093 44.76 n/a n/a n/a
2025-05-12 2025-03-31 13F RIOT PLATFORMS COM Call 300,000 2,136 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-02-13 2025-12-31 13F RIOT PLATFORMS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-10 2025-09-30 13F RIOT PLATFORMS COM Put 450,000 8,564 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.