Cipher Mining Inc. — Director's Dealing 2025

Dec 18, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Cipher Mining Inc. (CIFR)
CIK: 0001819989
Period of Report: 2025-12-15

Reporting Person: Page Tyler (Director, Chief Executive Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-12-15	Common Stock	M	1567398	—	Acquired	8547285	Direct
2025-12-15	Common Stock	F	800157	$14.74	Disposed	7747128	Direct
2025-12-15	Common Stock	M	113225	—	Acquired	7860353	Direct
2025-12-15	Common Stock	F	57802	$14.74	Disposed	7802551	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-12-15	Restricted Stock Units	$	M	1567398	Disposed		Common Stock (1567398)	Direct
2025-12-15	Restricted Stock Units	$	M	113225	Disposed		Common Stock (113225)	Direct

Footnotes

F1: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F2: Represents the early vesting and settlement of the second installment of the RSU award granted on March 9, 2024.

F3: The RSUs vest in equal quarterly installments over a three-year period, on March 31, June 30, September 30 and December 15 of each year, subject to the Reporting Person's continuous service on the applicable vesting date. The first vesting date occurred on March 31, 2025.