Jane Street Group discloses 5.6% Bitfarms (BITF) ownership in 13G/A

Rhea-AI Filing Summary

Jane Street Group, LLC and affiliates filed an amended Schedule 13G reporting beneficial ownership of 33,552,042 Bitfarms Ltd common shares, representing 5.6% of the class as of 12/31/2025.

All 33,552,042 shares are reported with shared voting and shared dispositive power, and none with sole power. The position is held through subsidiaries Jane Street Capital, LLC (9,143,996 shares, 1.5%), Jane Street Options, LLC (8,756,685 shares, 1.5%), and Jane Street Global Trading, LLC (15,651,361 shares, 2.6%).

The filers certify that the Bitfarms securities were not acquired and are not held for the purpose or effect of changing or influencing control of Bitfarms, but instead are reported on a passive basis under the Schedule 13G framework.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Bitfarms Ltd

(Name of Issuer)

Common Shares

(Title of Class of Securities)

09173B107

(CUSIP Number)

12/31/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 09173B107

1

Names of Reporting Persons

JANE STREET GROUP, LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 33,552,042.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 33,552,042.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

33,552,042.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.6 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP No. 09173B107

1

Names of Reporting Persons

Jane Street Capital, LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 9,143,996.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 9,143,996.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

9,143,996.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

1.5 %

12

Type of Reporting Person (See Instructions)

BD

SCHEDULE 13G

CUSIP No. 09173B107

1

Names of Reporting Persons

Jane Street Options, LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 8,756,685.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 8,756,685.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

8,756,685.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

1.5 %

12

Type of Reporting Person (See Instructions)

BD

SCHEDULE 13G

CUSIP No. 09173B107

1

Names of Reporting Persons

Jane Street Global Trading, LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 15,651,361.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 15,651,361.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

15,651,361.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

2.6 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Bitfarms Ltd
(b)	Address of issuer's principal executive offices: 110 YONGE STREET, 110 YONGE STREET, TORONTO, ONTARIO, CANADA, M5C 1T4.
Item 2.
(a)	Name of person filing: Jane Street Group, LLC; Jane Street Capital, LLC; Jane Street Options, LLC; Jane Street Global Trading, LLC
(b)	Address or principal business office or, if none, residence: Jane Street Group, LLC 250 Vesey Street 6th Floor New York, NY 10281 Jane Street Capital, LLC 250 Vesey Street 6th Floor New York, NY 10281 Jane Street Options, LLC 250 Vesey Street 6th Floor New York, NY 10281 Jane Street Global Trading, LLC 250 Vesey Street 6th Floor New York, NY 10281
(c)	Citizenship: See Item 4 of Cover Page
(d)	Title of class of securities: Common Shares
(e)	CUSIP No.: 09173B107
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 33,552,042.00
(b)	Percent of class: 5.6 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 33,552,042.00
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 33,552,042.00
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. Subsidiary Jane Street Capital, LLC Jane Street Options, LLC Jane Street Global Trading, LLC
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

JANE STREET GROUP, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	02/12/2026

Jane Street Capital, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	02/12/2026

Jane Street Options, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	02/12/2026

Jane Street Global Trading, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	02/12/2026

FAQ

What stake in Bitfarms (BITF) does Jane Street report on this Schedule 13G/A?

Jane Street Group, LLC reports beneficial ownership of 33,552,042 Bitfarms common shares, or 5.6% of the class. The filing shows only shared voting and dispositive power over these shares, with no sole power reported for any reporting person.

Which Jane Street entities hold Bitfarms (BITF) shares and in what amounts?

Bitfarms shares are held through Jane Street Capital, LLC, Jane Street Options, LLC, and Jane Street Global Trading, LLC. They report 9,143,996 shares, 8,756,685 shares, and 15,651,361 shares respectively, corresponding to 1.5%, 1.5%, and 2.6% of Bitfarms’ common shares.

Does the Jane Street Schedule 13G/A for Bitfarms (BITF) indicate an activist or control intent?

The filing explicitly states the Bitfarms shares were not acquired to change or influence control. Jane Street certifies the securities are not held for any control-related purpose, other than activities solely in connection with a nomination under Rule 14a-11.

What voting and dispositive powers over Bitfarms (BITF) shares does Jane Street report?

Jane Street reports zero sole voting or dispositive power and 33,552,042 shares with shared power. This means all reported Bitfarms common shares are subject to shared decisions regarding both voting and potential sale or other dispositions.

As of what date is Jane Street’s 5.6% ownership in Bitfarms (BITF) measured?

The 5.6% beneficial ownership in Bitfarms is measured as of December 31, 2025. That date is listed as the event requiring the filing, aligning the reported share count and percentage with Bitfarms’ capital structure on that day.

Why are multiple signatures by Jeremy Kahn included in the Bitfarms (BITF) Schedule 13G/A?

Jeremy Kahn signs as authorized signatory for each Jane Street reporting entity. Separate signature blocks confirm and certify the information for Jane Street Group, LLC and its subsidiaries Jane Street Capital, LLC, Jane Street Options, LLC, and Jane Street Global Trading, LLC.