Bitfarms Ltd.
US ˙ NasdaqGM ˙ CA09173B1076
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT

SecurityBITF / Bitfarms Ltd.
InstitutionJane Street Group, Llc
Latest Disclosed Ownership33,552,042 shares
Ownership 5.60%
Jane Street Group, Llc ownership in BITF / Bitfarms Ltd.

2026-02-12 - Jane Street Group, Llc has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 33,552,042 shares of Bitfarms Ltd. (US:BITF). This represents 5.6 percent ownership of the company. In their previous filing dated 2025-10-23 , Jane Street Group, Llc had reported owning 29,920,704 shares, indicating an increase of 12.14 percent.

Jane Street Group, Llc has a history of taking positions in derivatives of the underlying security (BITF) in the form of stock options. The firm currently holds call options representing 17,249,600 of underlying shares valued at $33,839,759 USD and put options representing 626,700 of underlying shares valued at $1,229,442 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: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2026-02-12 2026-02-12 13G/A 29,920,704 33,552,042 12.14 5.60 3.70
2025-10-23 2025-10-23 13G 29,920,704 5.40

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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.

BITF / Bitfarms Ltd. 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)
2026-05-12 2026-03-31 13F BITFARMS COM 09173B107 20,818,071 -8,054,571 -27.90 40,840 -39.91 0.0053
2026-02-12 2025-12-31 13F BITFARMS COM 09173B107 28,872,642 15,392,332 114.18 67,963 78.60 0.0103
2025-11-14 2025-09-30 13F BITFARMS COM 09173B107 13,480,310 13,381,207 13,502.32 38,053 46,306.10 0.0058
2025-08-14 2025-06-30 13F BITFARMS COM 09173B107 99,103 -23,783 -19.35 82 -14.58 0.0000
2025-05-19 2025-03-31 13F/A-1 BITFARMS COM 09173B107 122,886 -1,473,974 -92.30 97 -95.88 0.0000
2025-05-14 2025-03-31 13F BITFARMS COM 09173B107 122,886 -1,473,974 97 0.0000
2025-02-14 2024-12-31 13F BITFARMS COM 09173B107 1,596,860 814,864 104.20 2,332 41.53 0.0005
2024-11-15 2024-09-30 13F BITFARMS COM 09173B107 781,996 -135,318 -14.75 1,648 -30.42 0.0004
2024-08-15 2024-06-30 13F BITFARMS COM 09173B107 917,314 -566,852 -38.19 2,367 -28.23 0.0005
2024-05-16 2024-03-31 13F BITFARMS COM 09173B107 1,484,166 -600,112 -28.79 3,299 -45.52 0.0007
2024-02-15 2023-12-31 13F BITFARMS COM 09173B107 2,084,278 1,994,174 2,213.19 6,055 6,206.25 0.0016
2023-11-15 2023-09-30 13F BITFARMS COM 09173B107 90,104 -51,648 -36.44 97 -54.07 0.0000
2023-08-14 2023-06-30 13F BITFARMS COM 09173B107 141,752 -161,545 -53.26 210 -27.68 0.0001
2023-05-16 2023-03-31 13F BITFARMS COM 09173B107 303,297 -27,528 -8.32 289 112.50 0.0001
2023-02-15 2022-12-31 13F BITFARMS COM 09173B107 330,825 143,038 76.17 137 -30.26 0.0001
2022-11-15 2022-09-30 13F BITFARMS COM 09173B107 187,787 -160,852 -46.14 195 -50.00 0.0001
2022-08-16 2022-06-30 13F BITFARMS COM 09173B107 348,639 63,750 22.38 390 -63.65 0.0002
2022-05-17 2022-03-31 13F BITFARMS COM 09173B107 284,889 -281,981 -49.74 1,073 -62.48 0.0003
2022-02-15 2021-12-31 13F BITFARMS COM 09173B107 566,870 290,652 105.23 2,860 144.44 0.0009
2021-11-16 2021-09-30 13F BITFARMS COM 09173B107 276,218 225,043 439.75 1,170 482.09 0.0004
2021-08-16 2021-06-30 13F BITFARMS COM 09173B107 51,175 51,175 201 0.0001
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
(%)
2026-05-12 2026-03-31 13F BITFARMS COM Call 17,249,600 -12.35 33,840 -26.95 n/a n/a n/a
2026-02-12 2025-12-31 13F BITFARMS COM Call 19,679,400 1,918.91 46,323 1,583.86 n/a n/a n/a
2025-11-14 2025-09-30 13F BITFARMS COM Call 974,756 1,617.33 2,752 5,753.19 n/a n/a n/a
2025-08-14 2025-06-30 13F BITFARMS COM Call 56,760 129.69 47 147.37 n/a n/a n/a
2025-05-19 2025-03-31 13F/A BITFARMS COM Call 24,712 -97.35 19 -98.60 n/a n/a n/a
2025-05-14 2025-03-31 13F BITFARMS COM Call 24,712 19 n/a n/a n/a
2025-02-14 2024-12-31 13F BITFARMS COM Call 932,500 0.90 1,362 -30.10 n/a n/a n/a
2024-11-15 2024-09-30 13F BITFARMS COM Call 924,200 1,947 n/a n/a n/a
2022-08-16 2022-06-30 13F BITFARMS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-17 2022-03-31 13F BITFARMS COM Call 1,003,100 -41.32 3,778 -56.19 n/a n/a n/a
2022-02-15 2021-12-31 13F BITFARMS COM Call 1,709,400 181.52 8,623 235.26 n/a n/a n/a
2021-11-16 2021-09-30 13F BITFARMS COM Call 607,200 2,572 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
(%)
2026-05-12 2026-03-31 13F BITFARMS COM Put 626,700 -20.22 1,229 -33.50 n/a n/a n/a
2026-02-12 2025-12-31 13F BITFARMS COM Put 785,500 -67.66 1,849 -73.05 n/a n/a n/a
2025-11-14 2025-09-30 13F BITFARMS COM Put 2,428,900 6,856 n/a n/a n/a
2025-08-14 2025-06-30 13F BITFARMS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-19 2025-03-31 13F/A BITFARMS COM Put 12,868 -93.18 10 -96.36 n/a n/a n/a
2025-05-14 2025-03-31 13F BITFARMS COM Put 12,868 10 n/a n/a n/a
2025-02-14 2024-12-31 13F BITFARMS COM Put 188,800 124.49 276 55.37 n/a n/a n/a
2024-11-15 2024-09-30 13F BITFARMS COM Put 84,100 177 n/a n/a n/a
2022-08-16 2022-06-30 13F BITFARMS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-17 2022-03-31 13F BITFARMS COM Put 180,400 -43.98 679 -58.19 n/a n/a n/a
2022-02-15 2021-12-31 13F BITFARMS COM Put 322,000 -19.58 1,624 -4.25 n/a n/a n/a
2021-11-16 2021-09-30 13F BITFARMS COM Put 400,400 1,696 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.