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    Amendment: SEC Form SCHEDULE 13D/A filed by Cipher Mining Inc.

    8/11/25 4:44:17 PM ET
    $CIFR
    Finance: Consumer Services
    Finance
    Get the next $CIFR alert in real time by email



    SECURITIES AND EXCHANGE COMMISSION
    Washington, D.C. 20549


    SCHEDULE 13D

    Under the Securities Exchange Act of 1934

    (Amendment No. 13)


    Cipher Mining Inc.

    (Name of Issuer)


    Common Stock

    (Title of Class of Securities)


    17253J106

    (CUSIP Number)


    Stijn Ehren
    Strawinskylaan 3051,
    Amsterdam, P7, 1077ZX
    31 6 29 94 48 88

    (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)
    08/07/2025

    (Date of Event Which Requires Filing of This Statement)


    If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. Checkbox not checked

    The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).






    SCHEDULE 13D

    CUSIP No.
    17253J106


    1 Name of reporting person

    Bitfury Top HoldCo B.V.
    2Check the appropriate box if a member of a Group (See Instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3SEC use only
    4 Source of funds (See Instructions)

    OO
    5 Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

    Checkbox not checked
    6Citizenship or place of organization

    NETHERLANDS
    Number of Shares Beneficially Owned by Each Reporting Person With:
    7Sole Voting Power

    0.00
    8Shared Voting Power

    48,733,104.00
    9Sole Dispositive Power

    0.00
    10Shared Dispositive Power

    48,733,104.00
    11Aggregate amount beneficially owned by each reporting person

    48,733,104.00
    12Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

    Checkbox not checked
    13Percent of class represented by amount in Row (11)

    12.4 %
    14Type of Reporting Person (See Instructions)

    CO



    SCHEDULE 13D

    CUSIP No.
    17253J106


    1 Name of reporting person

    Bitfury Holding B.V.
    2Check the appropriate box if a member of a Group (See Instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3SEC use only
    4 Source of funds (See Instructions)

    OO
    5 Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

    Checkbox not checked
    6Citizenship or place of organization

    NETHERLANDS
    Number of Shares Beneficially Owned by Each Reporting Person With:
    7Sole Voting Power

    0.00
    8Shared Voting Power

    4,821,560.00
    9Sole Dispositive Power

    0.00
    10Shared Dispositive Power

    4,821,560.00
    11Aggregate amount beneficially owned by each reporting person

    4,821,560.00
    12Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

    Checkbox not checked
    13Percent of class represented by amount in Row (11)

    1.2 %
    14Type of Reporting Person (See Instructions)

    CO



    SCHEDULE 13D

    CUSIP No.
    17253J106


    1 Name of reporting person

    Bitfury Group Ltd
    2Check the appropriate box if a member of a Group (See Instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3SEC use only
    4 Source of funds (See Instructions)

    OO
    5 Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

    Checkbox not checked
    6Citizenship or place of organization

    UNITED KINGDOM
    Number of Shares Beneficially Owned by Each Reporting Person With:
    7Sole Voting Power

    0.00
    8Shared Voting Power

    48,733,104.00
    9Sole Dispositive Power

    0.00
    10Shared Dispositive Power

    48,733,104.00
    11Aggregate amount beneficially owned by each reporting person

    48,733,104.00
    12Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

    Checkbox not checked
    13Percent of class represented by amount in Row (11)

    12.4 %
    14Type of Reporting Person (See Instructions)

    CO



    SCHEDULE 13D

    CUSIP No.
    17253J106


    1 Name of reporting person

    V3 Holding Ltd
    2Check the appropriate box if a member of a Group (See Instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3SEC use only
    4 Source of funds (See Instructions)

    OO
    5 Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

    Checkbox not checked
    6Citizenship or place of organization

    CAYMAN ISLANDS
    Number of Shares Beneficially Owned by Each Reporting Person With:
    7Sole Voting Power

    0.00
    8Shared Voting Power

    90,942,259.00
    9Sole Dispositive Power

    0.00
    10Shared Dispositive Power

    90,942,259.00
    11Aggregate amount beneficially owned by each reporting person

    90,942,259.00
    12Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

    Checkbox not checked
    13Percent of class represented by amount in Row (11)

    23.1 %
    14Type of Reporting Person (See Instructions)

    CO



    SCHEDULE 13D

    CUSIP No.
    17253J106


    1 Name of reporting person

    Vavilovs Valerijs
    2Check the appropriate box if a member of a Group (See Instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3SEC use only
    4 Source of funds (See Instructions)

    OO
    5 Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

    Checkbox not checked
    6Citizenship or place of organization

    LATVIA
    Number of Shares Beneficially Owned by Each Reporting Person With:
    7Sole Voting Power

    0.00
    8Shared Voting Power

    90,942,259.00
    9Sole Dispositive Power

    0.00
    10Shared Dispositive Power

    90,942,259.00
    11Aggregate amount beneficially owned by each reporting person

    90,942,259.00
    12Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

    Checkbox not checked
    13Percent of class represented by amount in Row (11)

    23.1 %
    14Type of Reporting Person (See Instructions)

    IN



    SCHEDULE 13D

    Item 1.Security and Issuer
    (a)Title of Class of Securities:

    Common Stock
    (b)Name of Issuer:

    Cipher Mining Inc.
    (c)Address of Issuer's Principal Executive Offices:

    1 Vanderbilt Avenue, Floor 54, New York, NEW YORK , 10017.
    Item 1 Comment:
    This Amendment No. 13 ("Amendment No. 13") to Schedule 13D relates to shares of common stock, par value $0.001 per share (the "Common Stock"), of Cipher Mining Inc., a Delaware corporation (the "Issuer"), and amends and supplements the initial statement on Schedule 13D originally filed with the Securities and Exchange Commission (the "SEC") by the Reporting Persons on September 23, 2021, as amended by Amendment No. 1 to Schedule 13D filed with the SEC by the Reporting Persons on April 12, 2022, Amendment No. 2 to Schedule 13D filed with the SEC by the Reporting Persons on November 9, 2023, Amendment No. 3 to Schedule 13D filed with the SEC by the Reporting Persons on January 24, 2024, Amendment No. 4 to Schedule 13D filed with the SEC by the Reporting Persons on February 26, 2024, Amendment No. 5 to Schedule 13D filed with the SEC by the Reporting Persons on May 16, 2024, Amendment No. 6 to Schedule 13D filed with the SEC by the Reporting Persons on June 13, 2024, Amendment No. 7 to Schedule 13D filed with the SEC by the Reporting Persons on June 28, 2024, Amendment No. 8 to Schedule 13D filed with the SEC by the Reporting Persons on September 4, 2024, Amendment No. 9 to Schedule 13D filed with the SEC by the Reporting Persons on September 10, 2024, Amendment No. 10 to Schedule 13D filed with the SEC by the Reporting Persons on November 12, 2024, Amendment No. 11 to Schedule 13D filed with the SEC by the Reporting Persons on July 10, 2025 and Amendment No. 12 to Schedule 13D filed with the SEC by the Reporting Persons on July 22, 2025 (the "Original Schedule 13D," and as amended by Amendment No. 13, the "Schedule 13D"). Capitalized terms used but not defined in this Amendment No. 13 shall have the same meanings ascribed to them in the Original Schedule 13D. This Amendment No. 13 is being filed to reflect a change in the percentage of the Common Stock owned by the Reporting Persons as a result of a change in the number of shares of Common Stock outstanding.
    Item 2.Identity and Background
    (a)
    Item 5(a) of the Schedule 13D is hereby amended and restated to read as follows: The information in rows 11 and 13 of each of the cover pages of this Amendment No. 13 is incorporated by reference herein. Such information sets forth, as of August 11, 2025, the aggregate number of shares of Common Stock of the Issuer and percentage of Common Stock of the Issuer beneficially owned by each of the Reporting Persons, based on 393,282,654 shares of Common Stock outstanding as of August 6, 2025, as disclosed in the Issuer's Quarterly Report on Form 10-Q filed with the SEC on August 7, 2025.
    (b)
    Item 5(b) of the Schedule 13D is hereby amended and restated to read as follows: The information in rows 7 through 10 of each of the cover pages of this Amendment No. 13 is incorporated by reference herein. Bitfury Holding is the record holder of 4,821,560 shares of Common Stock. Bitfury Top HoldCo is the record holder of 43,911,544 shares of Common Stock and is the sole owner of Bitfury Holding. As a result, Bitfury Top HoldCo may be deemed to share beneficial ownership of the shares of Common Stock held by Bitfury Holding. V3 is the direct holder of 42,209,155 shares of Common Stock. Valerijs Vavilovs is the sole owner of V3, which is the majority owner of BGL. BGL is the sole owner of Bitfury Top HoldCo. As a result of the foregoing relationships, each of Mr. Vavilovs, V3 and BGL may be deemed to share beneficial ownership of the Common Stock beneficially owned by Bitfury Top Holdco, and Mr. Vavilovs is deemed to share beneficial ownership of the Common Stock beneficially owned by V3.
    (c)
    Item 5(c) of the Schedule 13D is hereby amended and supplemented as follows: The Reporting Persons have engaged in the following open market sales since the filing of Amendment No. 12 to Schedule 13D on July 22, 2025. On July 30, 2025, V3 sold 369,984 shares of Common Stock at prices ranging from $5.50 to $5.85, for a volume-weighted average price per share of $5.6122. On July 29, 2025, V3 sold 66,049 shares of Common Stock at prices ranging from $6.00 to $6.19, for a volume-weighted average price per share of $6.0598. On July 28, 2025, V3 sold 500,000 shares of Common Stock at prices ranging from $6.08 to $6.63, for a volume-weighted average price per share of $6.1874. On July 25, 2025, V3 sold 500,000 shares of Common Stock at prices ranging from $6.3128 to $6.5669, for a volume-weighted average price per share of $6.4542. On July 24, 2025, V3 sold 500,000 shares of Common Stock at prices ranging from $6.49 to $6.865, for a volume-weighted average price per share of $6.6765. On July 23, 2025, V3 sold 500,000 shares of Common Stock at prices ranging from $6.286 to $6.76, for a volume-weighted average price per share of $6.5452.
    Item 7.Material to be Filed as Exhibits.
     
    Item 7 of the Schedule 13D is hereby amended and supplemented as follows: Exhibit 1: Joint Filing Agreement, dated as of August 11, 2025

        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.

     
    Bitfury Top HoldCo B.V.
     
    Signature:/s/ Stijn Ehren
    Name/Title:Stijn Ehren, Managing Director
    Date:08/11/2025
     
    Bitfury Holding B.V.
     
    Signature:/s/ Stijn Ehren
    Name/Title:Stijn Ehren, Managing Director
    Date:08/11/2025
     
    Bitfury Group Ltd
     
    Signature:/s/ Valerijs Vavilovs
    Name/Title:Valerijs Vavilovs, Director
    Date:08/11/2025
     
    V3 Holding Ltd
     
    Signature:/s/ Valerijs Vavilovs
    Name/Title:Valerijs Vavilovs, Director
    Date:08/11/2025
     
    Vavilovs Valerijs
     
    Signature:/s/ Valerijs Vavilovs
    Name/Title:Valerijs Vavilovs
    Date:08/11/2025
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