X0508 4 2025-11-17 0 0001819989 Cipher Mining Inc. CIFR 0001887616 Kelly Patrick Arthur C/O CIPHER MINING INC. 1 VANDERBILT AVENUE, FLOOR 54 NEW YORK NY 10017 0 1 0 0 Co-President and COO 1 Common Stock 2025-11-17 4 S 0 26580 14.20 D 1187339 D The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 12, 2025. The sales were executed in multiple trades at prices ranging from $13.60 to $14.88. The price reported reflects the weighted average sale price. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4. /s/ William Iwaschuk, Attorney-in-Fact for Patrick Arthur Kelly 2025-11-19