Riot Platforms, Inc.
US ˙ NasdaqCM ˙ US7672921050

SecurityRIOT / Riot Platforms, Inc.
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership981 shares
Latest Disclosed Value $ 12,429
Parallel Advisors, LLC ownership in RIOT / Riot Platforms, Inc.

On February 11, 2026 - Parallel Advisors, LLC filed a 13F-HR form disclosing ownership of 981 shares of Riot Platforms, Inc. (US:RIOT) valued at $12,429 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 734 shares of Riot Platforms, Inc.. This represents a change in shares of 33.65% during the quarter. The current value of the position is $27,125 USD.

Parallel Advisors, LLC has a history of taking positions in derivatives of the underlying security (RIOT) in the form of stock options. The firm currently holds call 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.

RIOT / 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)
2026-02-11 2025-12-31 13F RIOT PLATFORMS INC COM Stock 767292105 981 247 33.65 12 -7.69 0.0002
2025-11-13 2025-09-30 13F RIOT PLATFORMS INC COM Stock 767292105 734 0 0.00 14 62.50 0.0003
2025-07-08 2025-06-30 13F RIOT PLATFORMS INC COM Stock 767292105 734 492 203.31 8 700.00 0.0002
2025-04-08 2025-03-31 13F RIOT PLATFORMS INC COM Stock 767292105 242 198 450.00 2 0.0000
2025-02-10 2024-12-31 13F RIOT PLATFORMS INC COM Stock 767292105 44 -84 -65.62 0 0.0000
2024-11-13 2024-09-30 13F RIOT PLATFORMS INC COM Stock 767292105 128 128 1 0.0000
2024-08-08 2024-06-30 13F RIOT PLATFORMS INC COM Stock 767292105 0 -516 -100.00 0 -100.00
2024-05-06 2024-03-31 13F RIOT PLATFORMS INC COM Stock 767292105 516 281 119.57 6 100.00 0.0002
2024-02-12 2023-12-31 13F RIOT PLATFORMS INC COM Stock 767292105 235 204 658.06 4 0.0001
2024-05-20 2023-09-30 13F/A-1 RIOT PLATFORMS INC COM Stock 767292105 31 31 0 0.0000
2023-11-14 2023-09-30 13F RIOT PLATFORMS INC COM Stock 767292105 31 31 0 0.0000
2024-05-20 2023-06-30 13F/A-1 RIOT PLATFORMS INC COM Stock 767292105 0 -110 -100.00 0 -100.00
2023-08-04 2023-06-30 13F RIOT PLATFORMS INC COM Stock 767292105 0 -110 0
2024-05-20 2023-03-31 13F/A-1 RIOT PLATFORMS INC COM Stock 767292105 110 0 0.00 1 0.0000
2023-04-25 2023-03-31 13F RIOT PLATFORMS INC COM Stock 767292105 110 0 1 0.0000
2023-02-06 2022-12-31 13F RIOT PLATFORMS INC COM Stock 767292105 110 0 0.00 0 -100.00 0.0000
2022-11-10 2022-09-30 13F RIOT BLOCKCHAIN INC COM Stock 767292105 110 0 0.00 1 0.0000
2022-08-01 2022-06-30 13F RIOT BLOCKCHAIN INC COM Stock 767292105 110 -82 -42.71 0 -100.00
2022-04-28 2022-03-31 13F RIOT BLOCKCHAIN INC COM Stock 767292105 192 -27 -12.33 4 -20.00 0.0002
2022-01-20 2021-12-31 13F RIOT BLOCKCHAIN INC COM Stock 767292105 219 0 0.00 5 -16.67 0.0002
2021-11-02 2021-09-30 13F/A-1 RIOT BLOCKCHAIN INC COM Stock 767292105 219 0 0.00 6 -25.00 0.0002
2021-08-06 2021-06-30 13F RIOT BLOCKCHAIN INC COM Stock 767292105 219 9 4.29 8 -27.27 0.0003
2021-04-23 2021-03-31 13F RIOT BLOCKCHAIN INC COM Stock 767292105 210 110 110.00 11 450.00 0.0005
2021-02-02 2020-12-31 13F RIOT BLOCKCHAIN INC COM Stock 767292105 100 100 2 0.0001
2019-02-05 2018-12-31 13F RIOT BLOCKCHAIN INC COM Stock 767292105 0 -6 -100.00 0 0.0000
2018-11-01 2018-09-30 13F RIOT BLOCKCHAIN INC COM Stock 767292105 6 0 0.00 0 0.0000
2018-07-30 2018-06-30 13F RIOT BLOCKCHAIN INC COM Stock 767292105 6 0 0.00 0 0.0000
2018-05-08 2018-03-31 13F RIOT BLOCKCHAIN INC COM Stock 767292105 6 0 0.00 0 0.0000
2018-02-13 2017-12-31 13F RIOT BLOCKCHAIN INC COM Stock 767292105 6 0 0.00 0 0.0000
2017-11-15 2017-09-30 13F/A-1 RIOT BLOCKCHAIN INC COM Stock 767292105 6 0 0.00 0 0.0000
2017-08-07 2017-06-30 13F BIOPTIX INC COM Stock 09074N101 6 0 0.00 0 0.0000
2017-05-12 2017-03-31 13F/A-1 BIOPTIX INC COM Stock 09074N101 6 0 0.00 0 0.0000
2017-05-12 2017-03-31 13F BIOPTIX INC COM Stock 09074N101 6 0
2017-02-14 2016-12-31 13F BIOPTIX INC COM Stock 09074N101 6 6 0 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
(%)
2022-01-19 2021-12-31 13F RIOT BLOCKCHAIN INC COM Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-10-22 2021-09-30 13F RIOT BLOCKCHAIN INC COM Stock Call 219 8 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.