X0508 4 2025-12-19 0 0001819989 Cipher Mining Inc. CIFR 0001887623 Page Tyler C/O CIPHER MINING INC. 1 VANDERBILT AVENUE, FLOOR 54 NEW YORK NY 10017 1 1 0 0 Chief Executive Officer 0 Common Stock 2025-12-19 4 M 0 1019022 0 A 8821573 D Common Stock 2025-12-19 4 F 0 520211 16.21 D 8301362 D Performance Stock Units 2025-12-19 4 A 0 3057066 0 A Common Stock 3057066 3057066 D Performance Stock Units 2025-12-19 4 M 0 1019022 0 D Common Stock 1019022 2038044 D Each performance stock unit ("PSU") represents a contingent right to receive one share of Issuer's Common Stock. Represents the number of units earned under a PSU award based on the Issuer's satisfaction of certain performance criteria of the award. In light of the performance-based conditions of the award, the award was not reportable under Section 16 until performance conditions were certified by the Compensation Committee as achieved (which occurred on December 19, 2025). 1,019,022 earned PSUs vested on December 19, 2025, and the remaining earned PSUs will vest in substantially equal quarterly installments, with the first such vesting date occurring on March 31, 2026, subject to the Reporting Person's continuous service on each vesting date. These earned PSUs have no expiration date. /s/ William Iwaschuk, Attorney-in-Fact for Tyler Page 2025-12-23