Schedule 13D ownership disclosure

Cipher Mining Inc

Common Stock · CUSIP: 17253J106

Event date: 2025-09-30

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares
Unavailable
Percent of class
Unavailable
  • Bitfury Top HoldCo B.V.Reported CIK 0001884407

    Shares: 30,443,382 · Class: 7.7%

  • Bitfury Holding B.V.Reported CIK 0001887853

    Shares: 4,821,560 · Class: 1.2%

  • Bitfury Group LtdReported CIK 0001887872

    Shares: 30,443,382 · Class: 7.7%

  • V3 Holding LtdReported CIK 0001887845

    Shares: 65,852,537 · Class: 16.7%

  • Vavilovs ValerijsReported CIK 0001887811

    Shares: 65,852,537 · Class: 16.7%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.

Source: SEC EDGAR filing

Filing metadata

Accession number
0001123292-25-000508
Form type
SCHEDULE 13D/A
Filer
Bitfury Top HoldCo B.V.
CIK
CIK 1884407
Filed
Oct 02, 2025
Reporting period
Sep 30, 2025
Description
Schedule 13D beneficial ownership

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