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Cipher Digital (NASDAQ: CIFR) CFO exercises RSUs and withholds shares for tax obligations

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Cipher Digital Inc. Chief Financial Officer Gregory J.D. Mumford reported compensation-related stock activity. On June 30, he exercised restricted stock units to acquire 17,108 shares of common stock, while 6,895 shares were withheld at $24.50 per share to cover tax obligations. After these transactions, he directly held 27,102 common shares and 546,090 restricted stock units, which vest in equal quarterly installments over three years, subject to continued service.

Positive

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Insider Mumford Gregory J.D.
Role Chief Financial Officer
Type Security Shares Price Value
Exercise Restricted Stock Units 17,108 $0.00 --
Exercise Common Stock 17,108 $0.00 --
Tax Withholding Common Stock 6,895 $24.50 $169K
Holdings After Transaction: Restricted Stock Units — 546,090 shares (Direct, null); Common Stock — 27,102 shares (Direct, null)
Footnotes (1)
  1. Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock. 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, 2026.
RSUs exercised 17,108 shares Restricted Stock Units converted to common stock on June 30, 2026
Shares withheld for taxes 6,895 shares at $24.50 Tax-withholding disposition on June 30, 2026
Common shares after transaction 27,102 shares Direct holdings following June 30, 2026 transactions
RSUs after transaction 546,090 units Restricted Stock Units remaining after June 30, 2026
Tax withholding price $24.50 per share Price used for 6,895-share tax-withholding disposition
Restricted Stock Units financial
"security_title": "Restricted Stock Units""
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
RSU financial
"Each restricted stock unit ("RSU") represents a contingent right"
Restricted stock units (RSUs) are a form of company shares given to employees as part of their compensation, usually with certain restrictions or conditions, such as remaining with the company for a set period. When these restrictions lift, employees receive actual shares that they can sell or hold. For investors, RSUs can impact a company's stock supply and reflect the company's commitment to attracting and retaining talent.
tax-withholding disposition financial
""transaction_action": "tax-withholding disposition""
A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.
derivative exercise/conversion financial
""transaction_action": "derivative exercise/conversion""
derivative security financial
"transaction_code_description": "Exercise or conversion of derivative security""
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED 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)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Financial Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/30/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock06/30/2026M17,108A(1)27,102D
Common Stock06/30/2026F6,895D$24.520,207D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Units(1)06/30/2026M17,108 (2) (2)Common Stock17,108$0546,090D
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 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, 2026.
Remarks:
/s/ William Iwaschuk, Attorney-in-Fact for Gregory Mumford07/02/2026
** Signature of Reporting PersonDate
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)

FAQ

What insider transactions did CIFR CFO Gregory Mumford report?

Cipher Digital Inc. CFO Gregory J.D. Mumford exercised restricted stock units into 17,108 common shares and had 6,895 shares withheld at $24.50 each for taxes. These are compensation-related, not open-market buy or sell transactions.

Did the CIFR CFO sell shares on the open market in this Form 4?

No open-market sale occurred. 6,895 shares were disposed of as tax withholding at $24.50 per share, which means shares were surrendered to cover tax liabilities arising from vesting, not sold in the market.

How many Cipher Digital (CIFR) shares does the CFO hold after this filing?

Following the reported transactions, CFO Gregory J.D. Mumford holds 27,102 shares of Cipher Digital common stock directly and 546,090 restricted stock units, according to the Form 4 ownership figures after the June 30 transactions.

What is the size of the RSU vesting for the CIFR CFO in this Form 4?

The filing shows 17,108 restricted stock units converted into common shares on June 30. Each RSU represents a contingent right to receive one share of Cipher Digital common stock upon vesting, as described in the footnotes.

How do the CIFR CFO’s RSUs vest over time?

The restricted stock units vest in equal quarterly installments over a three-year period on March 31, June 30, September 30 and December 15 each year, starting March 31, 2026, subject to the CFO’s continuous service on each vesting date.

What transaction codes appear in the Cipher Digital (CIFR) Form 4?

The Form 4 includes code M for derivative exercise or conversion of 17,108 RSUs into common stock, and code F for a tax-withholding disposition of 6,895 shares at $24.50 per share to satisfy tax obligations linked to the vesting event.