Key facts
- This page summarizes Edward J. Farrell's Form 4 filing for Cipher Mining Inc. (CIFR).
- 6 reported transactions and 2 derivative rows are listed below.
- Accepted by SEC: 02 Oct 2025, 18:55.
Edward J. Farrell - 30 Sep 2025 Form 4 Insider Report for Cipher Mining Inc. (CIFR)
- Reporting relationship
- Chief Financial Officer
- Issuer ticker
- CIFR
- Reported as of
- 30 Sep 2025
- Net transaction value
- -$2,526,448
- SEC form
- 4
- Accepted by SEC
- 02 Oct 2025, 18:55:55 UTC
- Prior SEC filing
- 02 Jul 2025
- Next SEC filing
- 17 Mar 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ William Iwaschuk, Attorney-in-Fact for Edward J. Farrell
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Edward J. Farrell filed Form 4 for Cipher Mining Inc. (CIFR) on 02 Oct 2025.
Change
- Previous filing in this sequence was filed on 02 Jul 2025.
- Current net transaction value: -$2,526,448.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001270609
Primary reporting owner
FARRELL EDWARD J
- Relationship
- Chief Financial Officer
- Address
- C/O CIPHER MINING INC., 1 VANDERBILT AVENUE, FLOOR 54, NEW YORK
- Signature
- /s/ William Iwaschuk, Attorney-in-Fact for Edward J. Farrell
- Signature date
- 02 Oct 2025
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
CIFR
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +366,667
- Change %
- +28%
- Price
- Shares after
- 1,656,874
- Date
- 30 Sep 2025
- Ownership
- Direct
- Footnotes
- F1
CIFR
transaction
Common Stock
Tax liability
- Transaction value
- $2,356,647
- Shares
- -187,184
- Change %
- -11%
- Price
- $12.59
- Shares after
- 1,469,690
- Date
- 30 Sep 2025
- Ownership
- Direct
CIFR
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +26,419
- Change %
- +1.8%
- Price
- Shares after
- 1,496,109
- Date
- 30 Sep 2025
- Ownership
- Direct
- Footnotes
- F1
CIFR
transaction
Common Stock
Tax liability
- Transaction value
- $169,801
- Shares
- -13,487
- Change %
- -0.9%
- Price
- $12.59
- Shares after
- 1,482,622
- Date
- 30 Sep 2025
- Ownership
- Direct
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
CIFR
transaction
Derivative
Restricted Stock Units
Options Exercise
- Transaction value
- $0
- Shares
- -366,667
- Change %
- -24%
- Price
- $0.000000
- Shares after
- 1,162,310
- Date
- 30 Sep 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 366,667
- Exercise price
- Footnotes
- F1, F2
CIFR
transaction
Derivative
Restricted Stock Units
Options Exercise
- Transaction value
- $0
- Shares
- -26,419
- Change %
- -2.3%
- Price
- $0.000000
- Shares after
- 1,135,891
- Date
- 30 Sep 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 26,419
- Exercise price
- Footnotes
- F1, F3
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 3 footnotes
Footnote F1
Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.
Footnote F2
The RSUs vest in equal installments on each of September 13, 2023, September 13, 2024 and September 30, 2025, subject to the Reporting Person's continuous service on the applicable vesting date.
Footnote 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.