Cipher Digital CFO converts stock grants to 125K shares

Cipher Digital's Chief Financial Officer also reported 67,768 shares delivered or withheld for payment of exercise price or tax liability.

Rhea-AI Filing Summary

Cipher Digital Inc. Chief Financial Officer Gregory J.D. Mumford reported converting 125,000 restricted stock units into 125,000 common shares on October 14, 2026. He also reported 67,768 common shares delivered or withheld for payment of exercise price or tax liability at $9.94 per share. After the conversion, he directly held 403,981 restricted stock units.

Insider Trade Summary

125,000 shares exercised/converted

Exercise 3 txns

Insider Mumford Gregory J.D.

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units F1, F2	125,000	$0.00	$0.00
Exercise	Common Stock F1	125,000	--	--
Exercise Price or Tax Liability	Common Stock	67,768	$9.94	$674K

Holdings After Transaction: Restricted Stock Units — 403,981 contracts (Direct); Common Stock — 87,653 shares (Direct)

Footnotes (2)

1. F1. Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.
2. F2. The RSUs 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.

Key Figures

Restricted stock units converted: 125,000 restricted stock units Common shares acquired: 125,000 common shares Shares delivered or withheld: 67,768 common shares +2 more

5 metrics

Restricted stock units converted 125,000 restricted stock units October 14, 2026

Common shares acquired 125,000 common shares October 14, 2026

Shares delivered or withheld 67,768 common shares For payment of exercise price or tax liability on October 14, 2026

Price per share $9.94 per share Shares delivered or withheld on October 14, 2026

Restricted stock units held after conversion 403,981 restricted stock units Direct holdings following the October 14, 2026 transaction

Key Terms

restricted stock unit, contingent right, vesting date

3 terms

restricted stock unit financial

"Each restricted stock unit ("RSU") represents a contingent right"

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

contingent right financial

"represents a contingent right to receive one share"

vesting date financial

"on the applicable vesting date"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many CIFR shares did Gregory J.D. Mumford convert or deliver on October 14, 2026?

Gregory J.D. Mumford reported converting 125,000 restricted stock units into 125,000 common shares and delivering or withholding 67,768 common shares for payment of exercise price or tax liability at $9.94 per share on October 14, 2026.

When do Gregory J.D. Mumford's CIFR restricted stock units vest?

The restricted stock units vest in equal installments on October 14, 2026, October 14, 2027, and October 14, 2028, subject to Gregory J.D. Mumford's continuous service on each applicable vesting date.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/15/2026 - 07:29 PM EDT Accepted by SEC EDGAR 10/15/2026 - 07:28 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Mumford Gregory J.D.

(Last) (First) (Middle)

C/O CIPHER DIGITAL INC.

1 VANDERBILT AVENUE, FLOOR 54

(Street)

NEW YORK NEW YORK 10017

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Cipher Digital Inc. [ CIFR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Financial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/14/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	10/14/2026		M		125,000	A	(1)	155,421	D
Common Stock	10/14/2026		F		67,768	D	$9.94	87,653	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(1)	10/14/2026		M			125,000	(2)	(2)	Common Stock	125,000	$0	403,981	D

Explanation of Responses:

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

2. The RSUs 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.

Remarks:

	/s/ William Iwaschuk, Attorney-in-Fact for Gregory Mumford	10/15/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)