Amendment No. 18 to Schedule 13D for Cipher Mining Inc.

This filing, Amendment No. 18 to Schedule 13D, pertains to the common stock of Cipher Mining Inc. The amendment updates the beneficial ownership details of the reporting persons, including Bitfury Top HoldCo B.V., Bitfury Holding B.V., Bitfury Group Ltd, V3 Holding Ltd, and Valerijs Vavilovs. As of October 16, 2025, the reporting persons collectively beneficially own 15.6% of the common stock. The filing also discloses recent open market sales of shares by V3 Holding Ltd, totaling 4,535,843 shares sold between October 14 and October 16, 2025, at prices ranging from $19.76 to $21.99 per share. The amendment includes a joint filing agreement among the reporting persons.