Cipher Digital Inc.

Item 5. Other Information.

(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 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 March 31, 2026, certain of our officers and directors adopted a pre-arranged stock trading plan intended to satisfy the affirmative defense of Rule 10b5-1(c) under the Exchange Act (each such plan, a “Rule 10b5-1 Plan”), as described below. On March 23, 2026, Patrick Kelly, Co-President and Chief Operating Officer, adopted a Rule 10b5-1 Plan, which covers the sale of up to 289,271 shares of our common stock until May 28, 2027. On December 18, 2025, William Iwaschuk, Co-President, Chief Legal Officer and Corporate Secretary, terminated a Rule 10b5-1 Plan covering the sale of up to 487,956 shares of our common stock until May 8, 2026.

No other directors or “officers” (as defined in Section 16a-1(f) of the Exchange Act)adopted, terminated, or modified a “Rule 10b5-1 trading arrangement” or a “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(a) of Regulation S-K, during the three months ended March 31, 2026.