Form 4 Filing for William Iwaschuk of Cipher Mining Inc.

This filing details transactions made by William Iwaschuk, Co-President and CLO of Cipher Mining Inc., on December 19, 2025. Iwaschuk acquired 917,120 Performance Stock Units (PSUs), which vest in installments starting March 31, 2026, subject to continued service. These PSUs are convertible into Common Stock. Additionally, 305,707 earned PSUs vested on the same date. The filing also reports the disposal of 169,056 shares of Common Stock at $16.21 per share and a charitable gift of 26,000 shares. Following these transactions, Iwaschuk directly holds 1,390,509 shares of Cipher Mining Inc. Common Stock.