A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 12 filings in this group are Form 4s for Cipher Digital Inc.
The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.
Across the 12 insider filings shown, the breakdown is 9 option exercise, 2 other reported transaction and 1 open-market sale. 1 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.
Form 4
Option exercise
Tax / Compensation Filing
2026-10-15
CIFR insider Form 4 filed for equity award, exercise, or tax withholding
Mumford Gregory J.D. (Chief Financial Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
M |
Option exercise
|
125,000 |
— |
— |
F |
Tax withholding on vested shares
|
67,768 |
$9.94 |
$673.6K |
M |
Option exercise
derivative · Restricted Stock Units
|
125,000 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Mumford Gregory J.D. (Chief Financial Officer)
Shares: 192,768
Form 4
Other reported transaction
Tax / Compensation Filing
2026-10-07
CIFR insider Form 4 filed for equity award, exercise, or tax withholding
V3 Holding Ltd (10% Owner) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
The filing reports a transaction type that does not map to a routine purchase, sale, award or withholding.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
J |
Other transaction
|
1,840,000 |
— |
— |
J |
Other transaction
derivative · Forward sale contract (obligation to sell)
|
1,840,000 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: V3 Holding Ltd (10% Owner)
Shares: 1,840,000
Form 4
Option exercise
Tax / Compensation Filing
2026-10-02
CIFR insider Form 4 filed for equity award, exercise, or tax withholding
Page Tyler (Director, Chief Executive Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
M |
Option exercise
|
113,225 |
— |
— |
M |
Option exercise
|
105,285 |
— |
— |
M |
Option exercise
|
254,756 |
— |
— |
M |
Option exercise
derivative · Restricted Stock Units
|
113,225 |
— |
— |
M |
Option exercise
derivative · Restricted Stock Units
|
105,285 |
— |
— |
M |
Option exercise
derivative · Performance Stock Units
|
254,756 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Page Tyler (Director, Chief Executive Officer)
Shares: 473,266
Form 4
Option exercise
Tax / Compensation Filing
2026-10-02
CIFR insider Form 4 filed for equity award, exercise, or tax withholding
Kelly Patrick Arthur (Co-President and COO) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
M |
Option exercise
|
33,967 |
— |
— |
M |
Option exercise
|
29,611 |
— |
— |
M |
Option exercise
|
76,427 |
— |
— |
M |
Option exercise
derivative · Restricted Stock Units
|
33,967 |
— |
— |
M |
Option exercise
derivative · Restricted Stock Units
|
29,611 |
— |
— |
M |
Option exercise
derivative · Performance Stock Units
|
76,427 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Kelly Patrick Arthur (Co-President and COO)
Shares: 140,005
Form 4
Option exercise
Tax / Compensation Filing
2026-10-02
CIFR insider Form 4 filed for equity award, exercise, or tax withholding
Iwaschuk William (Co-President and CLO) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
M |
Option exercise
|
33,967 |
— |
— |
M |
Option exercise
|
29,611 |
— |
— |
M |
Option exercise
|
76,427 |
— |
— |
M |
Option exercise
derivative · Restricted Stock Units
|
33,967 |
— |
— |
M |
Option exercise
derivative · Restricted Stock Units
|
29,611 |
— |
— |
M |
Option exercise
derivative · Performance Stock Units
|
76,427 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Iwaschuk William (Co-President and CLO)
Shares: 140,005
Form 4
Option exercise
Tax / Compensation Filing
2026-10-02
CIFR insider Form 4 filed for equity award, exercise, or tax withholding
Mumford Gregory J.D. (Chief Financial Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
M |
Option exercise
|
17,109 |
— |
— |
M |
Option exercise
derivative · Restricted Stock Units
|
17,109 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Mumford Gregory J.D. (Chief Financial Officer)
Shares: 17,109
Form 4
Other reported transaction
Tax / Compensation Filing
2026-09-30
CIFR insider Form 4 filed for equity award, exercise, or tax withholding
V3 Holding Ltd (10% Owner) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
The filing reports a transaction type that does not map to a routine purchase, sale, award or withholding.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
J |
Other transaction
|
1,805,000 |
— |
— |
J |
Other transaction
derivative · Forward sale contract (obligation to sell)
|
1,805,000 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: V3 Holding Ltd (10% Owner)
Shares: 1,805,000
Form 4
Open-market sale
Insider Selling
2026-07-10
CIFR insider Page Tyler (Director, Chief Executive Officer) sold 225,000 shares (~$4.94M)
Page Tyler, listed as Director, Chief Executive Officer at Cipher Digital Inc., reported an open-market sale of 225,000 CIFR shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
S |
Open-market sale
|
112,500 |
$21.19 |
$2.38M |
S |
Open-market sale
|
112,500 |
$22.68 |
$2.55M |
Filing: Form 4 (Insider Transaction)
Insider: Page Tyler (Director, Chief Executive Officer)
Shares: 225,000
Est. Value: $4.94M
Form 4
Option exercise
Tax / Compensation Filing
2026-07-02
CIFR insider Form 4 filed for equity award, exercise, or tax withholding
Mumford Gregory J.D. (Chief Financial Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
M |
Option exercise
|
17,108 |
— |
— |
F |
Tax withholding on vested shares
|
6,895 |
$24.50 |
$168.9K |
M |
Option exercise
derivative · Restricted Stock Units
|
17,108 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Mumford Gregory J.D. (Chief Financial Officer)
Shares: 24,003
Form 4
Option exercise
Tax / Compensation Filing
2026-07-02
CIFR insider Form 4 filed for equity award, exercise, or tax withholding
Iwaschuk William (Co-President and CLO) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
M |
Option exercise
|
33,967 |
— |
— |
F |
Tax withholding on vested shares
|
18,784 |
$24.50 |
$460.2K |
M |
Option exercise
|
29,611 |
— |
— |
F |
Tax withholding on vested shares
|
16,375 |
$24.50 |
$401.2K |
M |
Option exercise
|
76,427 |
— |
— |
F |
Tax withholding on vested shares
|
42,265 |
$24.50 |
$1.04M |
M |
Option exercise
derivative · Restricted Stock Units
|
33,967 |
— |
— |
M |
Option exercise
derivative · Restricted Stock Units
|
29,611 |
— |
— |
M |
Option exercise
derivative · Performance Stock Units
|
76,427 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Iwaschuk William (Co-President and CLO)
Shares: 217,429
Form 4
Option exercise
Tax / Compensation Filing
2026-07-02
CIFR insider Form 4 filed for equity award, exercise, or tax withholding
Kelly Patrick Arthur (Co-President and COO) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
M |
Option exercise
|
33,967 |
— |
— |
F |
Tax withholding on vested shares
|
17,341 |
$24.50 |
$424.9K |
M |
Option exercise
|
29,611 |
— |
— |
F |
Tax withholding on vested shares
|
15,117 |
$24.50 |
$370.4K |
M |
Option exercise
|
76,427 |
— |
— |
F |
Tax withholding on vested shares
|
39,016 |
$24.50 |
$955.9K |
M |
Option exercise
derivative · Restricted Stock Units
|
33,967 |
— |
— |
M |
Option exercise
derivative · Restricted Stock Units
|
29,611 |
— |
— |
M |
Option exercise
derivative · Performance Stock Units
|
76,427 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Kelly Patrick Arthur (Co-President and COO)
Shares: 211,479
Form 4
Option exercise
Tax / Compensation Filing
2026-07-02
CIFR insider Form 4 filed for equity award, exercise, or tax withholding
Page Tyler (Director, Chief Executive Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
M |
Option exercise
|
113,225 |
— |
— |
F |
Tax withholding on vested shares
|
57,802 |
$24.50 |
$1.42M |
M |
Option exercise
|
105,285 |
— |
— |
F |
Tax withholding on vested shares
|
53,748 |
$24.50 |
$1.32M |
M |
Option exercise
|
254,756 |
— |
— |
F |
Tax withholding on vested shares
|
130,053 |
$24.50 |
$3.19M |
M |
Option exercise
derivative · Restricted Stock Units
|
113,225 |
— |
— |
M |
Option exercise
derivative · Restricted Stock Units
|
105,285 |
— |
— |
M |
Option exercise
derivative · Performance Stock Units
|
254,756 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Page Tyler (Director, Chief Executive Officer)
Shares: 714,869