Gregory J.d. Mumford - 14 Oct 2025 Form 4 Insider Report for Cipher Mining Inc. (CIFR)

Role: Chief Financial Officer
Signature: /s/ William Iwaschuk, Attorney-in-Fact for Gregory Mumford
Issuer symbol: CIFR
Transactions as of: 14 Oct 2025
Net transactions value: $0
Form type: 4
Filing time: 16 Oct 2025, 18:53:00 UTC
Next filing: 27 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Mumford Gregory J.D.	Chief Financial Officer	C/O CIPHER MINING INC., 1 VANDERBILT AVENUE, FLOOR 54, NEW YORK	/s/ William Iwaschuk, Attorney-in-Fact for Gregory Mumford	16 Oct 2025	0002090886

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	CIFR	Restricted Stock Units	Award	$0	+375,000		$0.000000	375,000	14 Oct 2025	Common Stock	375,000		Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs have no expiration date.
F2	The RSUs will vest in equal installments on each of October 14, 2026, October 14, 2027 and October 14, 2028, subject to the Reporting Person's continuous service on the applicable vesting date.