Bitfury Top HoldCo B.V. - 15 Oct 2025 SCHEDULE 13D/A Report for Cipher Mining Inc. Common Stock (CIFR)

Filing Manager
Bitfury Top HoldCo B.V.
Reporting Manager
V3 Holding Ltd
Security
Cipher Mining Inc. Common Stock
Symbol
CIFR
Shares outstanding
393,055,731 shares
Disclosed Ownership
61,316,694 shares
Ownership
16%
Form type
SCHEDULE 13D/A
Filing time
16 Oct 2025, 18:19:46 UTC
Date of event
15 Oct 2025
Previous filing
02 Oct 2025
Next filing
05 Nov 2025
SEC
View on sec.gov

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Quoteable Key Fact

"Bitfury Top HoldCo B.V. disclosed 16% ownership in Cipher Mining Inc. Common Stock (CIFR) on 15 Oct 2025."

Quick Takeaways

  • Bitfury Top HoldCo B.V. filed SCHEDULE 13D/A for Cipher Mining Inc. Common Stock (CIFR).
  • Disclosed ownership: 16%.
  • Date of event: 15 Oct 2025.

What Changed

  • Previous schedule filing date: 02 Oct 2025.
  • Current filing was accepted on 16 Oct 2025, 18:19.

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

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (5)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Bitfury Top HoldCo B.V. 7.7% 30,443,382 0 30,443,382 /s/ Stijn Ehren Stijn Ehren, Managing Director 0001884407
Bitfury Holding B.V. 1.2% 4,821,560 0 4,821,560 /s/ Stijn Ehren Stijn Ehren, Managing Director 0001887853
Bitfury Group Ltd 7.7% 30,443,382 0 30,443,382 /s/ Valerijs Vavilovs Valerijs Vavilovs, Director 0001887872
V3 Holding Ltd 16% 61,316,694 0 61,316,694 /s/ Valerijs Vavilovs Valerijs Vavilovs, Director 0001887845
Vavilovs Valerijs 16% 61,316,694 0 61,316,694 /s/ Valerijs Vavilovs Vavilovs Valerijs 0001887811

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