CIFR · Insider Trading
Cipher Digital Inc. Common Stock
Every open-market purchase and sale reported by CIFR officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-15 | Gregory J.D. Mumford | Chief Financial Officer | MIXED | +57,232 | −$673.61K |
| 2026-10-08 | Gregory J.D. Mumford | Chief Financial Officer | MIXED | +10,214 | −$109.15K |
| 2026-10-08 | Tyler Page | Chief Executive Officer | MIXED | +231,663 | −$3.82M |
| 2026-10-08 | Patrick Arthur Kelly | Co-President and COO | MIXED | +68,531 | −$1.13M |
| 2026-10-08 | William Iwaschuk | Co-President and CLO | MIXED | +62,581 | −$1.23M |
| 2026-10-07 | Bitfury Top HoldCo B.V. | 10%+ Owner | J | −7,360,000 | — |
| 2026-10-02 | Gregory J.D. Mumford | Chief Financial Officer | M | +17,109 | — |
| 2026-10-02 | Tyler Page | Chief Executive Officer | M | +473,266 | — |
| 2026-10-02 | William Iwaschuk | Co-President and CLO | M | +140,005 | — |
| 2026-10-02 | Patrick Arthur Kelly | Co-President and COO | M | +140,005 | — |
| 2026-09-30 | Bitfury Group Ltd | 10%+ Owner | J | −9,025,000 | — |
| 2026-07-10 | Tyler Page | Chief Executive Officer | Sell | −225,000 | −$4.94M |
| 2026-07-02 | Patrick Arthur Kelly | Co-President and COO | MIXED | +68,531 | −$1.75M |
| 2026-07-02 | Gregory J.D. Mumford | Chief Financial Officer | MIXED | +10,213 | −$168.93K |
| 2026-07-02 | William Iwaschuk | Co-President and CLO | MIXED | +62,581 | −$1.90M |
| 2026-07-02 | Tyler Page | Chief Executive Officer | MIXED | +231,663 | −$5.92M |
| 2026-06-23 | Cary M Grossman | Director | Sell | −15,000 | −$441.45K |
| 2026-06-23 | Tyler Page | Chief Executive Officer | MIXED | +694,716 | −$20.39M |
| 2026-06-18 | James E Newsome | Director | Sell | −7,100 | −$170.01K |
| 2026-06-16 | Tyler Page | Chief Executive Officer | MIXED | +163,166 | −$4.43M |
| 2026-06-16 | William Iwaschuk | Co-President and CLO | MIXED | +74,500 | −$2.40M |
| 2026-06-16 | Patrick Arthur Kelly | Co-President and COO | MIXED | +81,583 | −$2.21M |
| 2026-06-08 | Bitfury Top HoldCo B.V. | 10%+ Owner | Sell | −6,000,000 | −$152.93M |
| 2026-06-05 | James E Newsome | Director | A | +8,299 | — |
| 2026-06-05 | Cary M Grossman | Director | A | +8,299 | — |
| 2026-06-05 | Robert Flatley | Director | A | +8,299 | — |
| 2026-06-05 | Wesley Hastie Williams | Director | A | +8,299 | — |
| 2026-06-05 | Caitlin Long | Director | A | +8,299 | — |
| 2026-06-05 | Thomas David Duda | Director | A | +8,299 | — |
| 2026-06-04 | Bitfury Holding B.V. | 10%+ Owner | Sell | −9,000,000 | −$239.56M |
| 2026-05-22 | Wesley Hastie Williams | Director | Sell | −14,567 | −$311.88K |
| 2026-05-18 | V3 Holding Ltd | 10%+ Owner | J | +36,232,990 deriv. | — |
| 2026-05-14 | Patrick Arthur Kelly | Co-President and COO | Sell | −48,000 | −$929.28K |
| 2026-05-14 | Tyler Page | Chief Executive Officer | G | −400,000 | — |
| 2026-05-13 | Bitfury Top HoldCo B.V. | 10%+ Owner | J | +28,379,920 deriv. | — |
| 2026-05-08 | Cary M Grossman | Director | Sell | −20,000 | −$436.40K |
| 2026-05-08 | Wesley Hastie Williams | Director | Sell | −28,169 | −$627.04K |
| 2026-04-07 | Gregory J.D. Mumford | Chief Financial Officer | MIXED | +9,994 | −$91.56K |
| 2026-04-02 | Patrick Arthur Kelly | Co-President and COO | MIXED | +80,048 | −$771.66K |
| 2026-04-02 | Tyler Page | Chief Executive Officer | MIXED | +243,318 | −$2.96M |
| 2026-04-02 | William Iwaschuk | Co-President and CLO | MIXED | +74,101 | −$848.20K |
| 2026-03-27 | Tyler Page | Chief Executive Officer | Sell | −37,500 | −$604.12K |
| 2026-03-25 | Cary M Grossman | Director | Sell | −30,000 | −$436.20K |
| 2026-03-25 | Patrick Arthur Kelly | Co-President and COO | G | −21,700 | — |
| 2026-03-19 | Patrick Arthur Kelly | Co-President and COO | Sell | −35,568 | −$532.81K |
| 2026-03-06 | James E Newsome | Director | Sell | −45,161 | −$710.83K |
| 2026-02-27 | Tyler Page | Chief Executive Officer | A | +1,263,424 deriv. | — |
| 2026-02-27 | Thomas David Duda | Director | A | +3,862 | — |
| 2026-02-27 | William Iwaschuk | Co-President and CLO | A | +355,338 deriv. | — |
| 2026-02-27 | Gregory J.D. Mumford | Chief Financial Officer | A | +205,306 deriv. | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Bitfury Holding B.V. | 10%+ Owner | 60,170,249 | $540.33M |
| Bitfury Group Ltd | 10%+ Owner | 56,511,694 | $507.48M |
| Bitfury Top HoldCo B.V. | 10%+ Owner | 54,671,694 | $490.95M |
| Tyler Page | Chief Executive Officer | 9,484,950 | $85.17M |
| William Iwaschuk | Co-President and CLO | 1,646,485 | $14.79M |
| Patrick Arthur Kelly | Co-President and COO | 1,633,090 | $14.67M |
| Caitlin Long | Director | 235,080 | $2.11M |
| Robert Flatley | Director | 147,171 | $1.32M |
| Cary M Grossman | Director | 143,829 | $1.29M |
| James E Newsome | Director | 128,530 | $1.15M |
| Wesley Hastie Williams | Director | 123,708 | $1.11M |
| Thomas David Duda | Director | 38,850 | $348.87K |
| Gregory J.D. Mumford | Chief Financial Officer | 30,421 | $273.18K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the CIFR quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.