Cipher Mining Inc

(a) Disclosure in lieu of reporting on a Current Report on Form 8-K.

None.

(b) Material changes to the procedures by which security holders may recommend nominees to the board of directors.

None.

(c) Insider trading arrangements and policies.

Our officers and directors from time to time may adopt, terminate or modify trading plans to transact in our common stock for a variety of reasons, including tax considerations, investment diversification, or other personal reasons. During the three months ended December 31, 2024, certain of our officers and directors terminated a pre-arranged stock trading plan intended to satisfy the affirmative defense of Rule 10b5-1(c) under the Securities Exchange Act of 1934, as amended (each such plan, a “Rule 10b5-1 Plan”), as described below. On October 10, 2024, Tyler Page, Chief Executive Officer and Director, terminated a Rule 10b5-1 Plan intended to satisfy the affirmative defense of Rule 10b5-1(c) covering the sale of up to 900,000 shares of our common stock until November 29, 2024. On November 7, 2024, William Iwaschuk, Co-President, Chief Legal Officer and Corporate Secretary, terminated a Rule 10b5-1 Plan intended to satisfy the affirmative defense of Rule 10b5-1(c) covering the sale of up to 323,694 shares of our common stock until June 10, 2025. On November 8, 2024, Patrick Kelly, Co-President and Chief Operating Officer, terminated a Rule 10b5-1 Plan intended to satisfy the affirmative defense of Rule 10b5-1(c) covering the sale of up to 428,078 shares of our common stock until May 16, 2025. No other directors or “officers” (as defined in Rule 16a-1(f) under the Exchange Act)adopted, terminated or modified a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408 of Regulation S-K during the three months ended December 31, 2024.