Quick Takeaways
- JANE STREET GROUP, LLC filed SCHEDULE 13G/A for Cipher Mining Inc. Common Stock, par value $0.001 per share (CIFR).
- Disclosed ownership: 5.3%.
- Date of event: 31 Dec 2025.
JANE STREET GROUP, LLC - 31 Dec 2025 SCHEDULE 13G/A Report for Cipher Mining Inc. Common Stock, par value $0.001 per share (CIFR)
- Filing Manager
- JANE STREET GROUP, LLC
- Reporting Manager
- JANE STREET GROUP, LLC
- Symbol
- CIFR
- Shares outstanding
- 397,222,830 shares
- Disclosed Ownership
- 21,052,810 shares
- Ownership
- 5.3%
- Form type
- SCHEDULE 13G/A
- Filing time
- 12 Feb 2026, 16:51:52 UTC
- Date of event
- 31 Dec 2025
- Previous filing
- 23 Oct 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"JANE STREET GROUP, LLC disclosed 5.3% ownership in Cipher Mining Inc. Common Stock, par value $0.001 per share (CIFR) on 31 Dec 2025."
What Changed
- Previous schedule filing date: 23 Oct 2025.
- Current filing was accepted on 12 Feb 2026, 16:51.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Source Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (4)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| JANE STREET GROUP, LLC | 5.3% | 21,052,810 | 0 | 21,052,810 | /s/ Jeremy Kahn | Jeremy Kahn (Authorized Signatory) | |
| Jane Street Capital, LLC | 0% | 98,900 | 0 | 98,900 | /s/ Jeremy Kahn | Jeremy Kahn (Authorized Signatory) | |
| Jane Street Options, LLC | 1.2% | 4,630,513 | 0 | 4,630,513 | Jeremy Kahn (Authorized Signatory) | Jeremy Kahn (Authorized Signatory) | |
| Jane Street Global Trading, LLC | 4.1% | 16,323,397 | 0 | 16,323,397 | /s/ Jeremy Kahn | Jeremy Kahn (Authorized Signatory) |