Beneficial Ownership Report · SCHEDULE 13G/A
Cipher Digital Inc.
CIFRNASDAQEQUITYCurrent
Beneficial Ownership Report
Structured filing — SCHEDULE 13G/A
primary_doc.xml
Amendment · This filing reports the amendment as submitted.
Subject company
- Company
- Cipher Digital Inc.
- Company CIK
- 0001819989
- Street
- 1 VANDERBILT AVENUE
- Street (continued)
- 1 VANDERBILT AVENUE
- City
- NEW YORK
- State / country code
- NY
- Postal code
- 10017
Statement details
- Amendment number
- 2
- Security class
- Common Stock, par value $0.001 per share
- Event date
- 09/30/2026
- Rule designation
- Rule 13d-1(c)
Reporting person 1
- Name
- JANE STREET GROUP, LLC
- Citizenship / organization
- DE
- Reporting person type
- HC
- Aggregate amount owned
- 12,499,168.00
- Percent of class
- 3.0
- Sole voting power
- 0.00
- Shared voting power
- 12,499,168.00
- Sole dispositive power
- 0.00
- Shared dispositive power
- 12,499,168.00
Reporting person 2
- Name
- Jane Street Capital, LLC
- Citizenship / organization
- DE
- Reporting person type
- BD
- Aggregate amount owned
- 10,108,034.00
- Percent of class
- 2.4
- Sole voting power
- 0.00
- Shared voting power
- 10,108,034.00
- Sole dispositive power
- 0.00
- Shared dispositive power
- 10,108,034.00
Reporting person 3
- Name
- Jane Street Options, LLC
- Citizenship / organization
- DE
- Reporting person type
- BD
- Aggregate amount owned
- 0.00
- Percent of class
- 0.0
- Sole voting power
- 0.00
- Shared voting power
- 0.00
- Sole dispositive power
- 0.00
- Shared dispositive power
- 0.00
Reporting person 4
- Name
- Jane Street Global Trading, LLC
- Citizenship / organization
- DE
- Reporting person type
- OO
- Aggregate amount owned
- 232,044.00
- Percent of class
- 0.1
- Sole voting power
- 0.00
- Shared voting power
- 232,044.00
- Sole dispositive power
- 0.00
- Shared dispositive power
- 232,044.00
Reporting person 5
- Name
- Jane Street Singapore Pte. Ltd
- Citizenship / organization
- U0
- Reporting person type
- OO
- Aggregate amount owned
- 7,151.00
- Percent of class
- 0.0
- Sole voting power
- 0.00
- Shared voting power
- 7,151.00
- Sole dispositive power
- 0.00
- Shared dispositive power
- 7,151.00
Reporting person 6
- Name
- Leonard Street Holdings, LP
- Citizenship / organization
- DE
- Reporting person type
- OO
- Aggregate amount owned
- 2,151,939.00
- Percent of class
- 0.5
- Sole voting power
- 0.00
- Shared voting power
- 2,151,939.00
- Sole dispositive power
- 0.00
- Shared dispositive power
- 2,151,939.00
Item 1
Issuer
Cipher Digital Inc.
Principal executive office address
1 VANDERBILT AVENUE, 1 VANDERBILT AVENUE, NEW YORK, NEW YORK, 10017.
Item 2
Citizenship
See Item 4 of Cover Page
Filing person
Jane Street Group, LLC; Jane Street Capital, LLC; Jane Street Options, LLC; Jane Street Global Trading, LLC; Jane Street Singapore Pte. Limited; Leonard Street Holdings, LP
Principal business or residence address
Jane Street Group, LLC 250 Vesey Street 3rd Floor New York, NY 10281 Jane Street Capital, LLC 250 Vesey Street 3rd Floor New York, NY 10281 Jane Street Options, LLC 250 Vesey Street 3rd Floor New York, NY 10281 Jane Street Global Trading, LLC 250 Vesey Street 3rd Floor New York, NY 10281 Jane Street Singapore Pte. Limited 2 Central Boulevard, #43-01 IOI Central Boulevard Towers (West Tower) 018916, Singapore Leonard Street Holdings, LP 250 Vesey Street 3rd Floor New York, NY 10281
Item 3
Not applicable indication
Y
Item 4
Percent of class
3.0%
Amount beneficially owned
12,499,168.00
Sole voting power
0
Shared voting power
12,499,168.00
Sole dispositive power
0
Shared dispositive power
12,499,168.00
Item 5
Ownership of 5% or less
Y
Item 6
Not applicable indication
Y
Item 7
Not applicable indication
N
Subsidiaries
Subsidiary Jane Street Capital, LLC Jane Street Options, LLC Jane Street Global Trading, LLC Jane Street Singapore Pte. Limited Leonard Street Holdings, LP
Item 8
Not applicable indication
Y
Item 9
Not applicable indication
Y
Item 10
Not applicable indication
N
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 1
- Reporting person
- JANE STREET GROUP, LLC
- Signed
- /s/ Jeremy Kahn
- Title
- Jeremy Kahn (Authorized Signatory)
- Date
- 10/21/2026
Signature 2
- Reporting person
- Jane Street Capital, LLC
- Signed
- /s/ Jeremy Kahn
- Title
- Jeremy Kahn (Authorized Signatory)
- Date
- 10/21/2026
Signature 3
- Reporting person
- Jane Street Options, LLC
- Signed
- /s/ Jeremy Kahn
- Title
- Jeremy Kahn (Authorized Signatory)
- Date
- 10/21/2026
Signature 4
- Reporting person
- Jane Street Global Trading, LLC
- Signed
- /s/ Jeremy Kahn
- Title
- Jeremy Kahn (Authorized Signatory)
- Date
- 10/21/2026
Signature 5
- Reporting person
- Jane Street Singapore Pte. Ltd
- Signed
- /s/ Jeremy Kahn
- Title
- Jeremy Kahn (Authorized Signatory)
- Date
- 10/21/2026
Signature 6
- Reporting person
- Leonard Street Holdings, LP
- Signed
- /s/ Jeremy Kahn
- Title
- Jeremy Kahn (Authorized Signatory)
- Date
- 10/21/2026
Filed exhibits
- POA ↗POA.pdf
Company context
Cipher develops and operates industrial-scale data centers engineered for next-generation computing at the highest standards of innovation, precision, and excellence. The Company brings together deep expertise across power sourcing, construction, engineering, operations, real estate, and technology to deliver high-quality data centers purpose built for HPC workloads. By partnering with premier tenants, Cipher seeks to meet the growing demand for industrial-scale data center capacity and become a leading HPC development platform that is built for hyperscale.
Current securities
Recent company filings
- 10-Q filingNov 2, 2026
- Results of Operations and Financial Condition · Regulation FD DisclosureNov 2, 2026
- SCHEDULE 13G - filed by Citadel Securities GP LLC regarding Cipher Digital Inc.Oct 21, 2026
- SCHEDULE 13G - filed by JANE STREET GROUP, LLC regarding Cipher Digital Inc.Oct 21, 2026
- Entry into a Material Definitive Agreement · Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement · Unregistered Sales of Equity Securities · Regulation FD DisclosureOct 16, 2026