Cipher Mining (CIFR) insider trading
12 directors and officers declare holding shares of Cipher Mining (CIFR), each in their own filing with the SEC. The largest is Valerijs Vavilovs (10% owner) with 54.7M shares, 13.2% of the company, worth $739.7M at the last close. The most recent move on file: Valerijs Vavilovs sold 1.8M shares on Oct 5, 2026. Of the 12 with a trade on file, 8 last bought and 4 last sold. Purchases and sales are as reported on Forms 3, 4 and 5 — the SEC counts private transactions too, and many large sales follow a plan arranged in advance. Holdings are never added up: two spouses often report the same shares, and a joint filing carries a fund's.
| Insider | Role | Shares | % of company | Value | Last trade on file | Filed |
|---|---|---|---|---|---|---|
| Valerijs Vavilovs | 10% owner | 54.7M | 13.2% | $739.7M | sold 1.8M shares on Oct 5, 2026 | Oct 5, 2026 |
| Tyler Page | Chief Executive Officer · Director | 9.6M | 2.3% | $129.9M | bought 473,266 shares on Sep 30, 2026 | Sep 30, 2026 |
| Patrick Arthur Kelly | Co-President and COO | 1.7M | 0.40% | $22.6M | bought 140,005 shares on Sep 30, 2026 | Sep 30, 2026 |
| William Iwaschuk | Co-President and CLO | 1.7M | 0.40% | $22.5M | bought 140,005 shares on Sep 30, 2026 | Sep 30, 2026 |
| Caitlin Long | Director | 235,080 | 0.06% | $3.2M | bought 8,299 shares on Jun 3, 2026 | Jun 3, 2026 |
| Holly Morrow Evans | Director | 195,512 | 0.05% | $2.6M | sold 15,000 shares at $18.74 on Nov 26, 2025 | Nov 26, 2025 |
| Robert Flatley | Director | 147,171 | 0.04% | $2.0M | bought 8,299 shares on Jun 3, 2026 | Jun 3, 2026 |
| Cary M. Grossman | Director | 143,829 | 0.03% | $1.9M | sold 15,000 shares at $29.43 on Jun 18, 2026 | Jun 18, 2026 |
| James E. Newsome | Director | 128,530 | 0.03% | $1.7M | sold 7,100 shares at $20.96 on May 11, 2026 | Jun 16, 2026 |
| Wesley Hastie Williams | Director | 123,708 | 0.03% | $1.7M | bought 8,299 shares on Jun 3, 2026 | Jun 3, 2026 |
| Thomas David Duda | Director | 38,850 | <0.01% | $525,640.50 | bought 8,299 shares on Jun 3, 2026 | Jun 3, 2026 |
| Gregory J.D. Mumford | Chief Financial Officer | 30,421 | <0.01% | $411,596.13 | bought 17,109 shares on Sep 30, 2026 | Sep 30, 2026 |
Each insider at Cipher Mining
- Valerijs Vavilovs — 10% owner
- Tyler Page — Chief Executive Officer · Director
- Patrick Arthur Kelly — Co-President and COO
- William Iwaschuk — Co-President and CLO
- Caitlin Long — Director
- Holly Morrow Evans — Director
- Robert Flatley — Director
- Cary M. Grossman — Director
- James E. Newsome — Director
- Wesley Hastie Williams — Director
- Thomas David Duda — Director
- Gregory J.D. Mumford — Chief Financial Officer
No longer filing
- Edward J. Farrell — Chief Financial Officer
- Robert R. B. Dykes — Director
What insiders bought and sold across AI stocks · All filings on sec.gov