Updated Jul 16, 2026
Mumford Gregory J.D. has filed 1 SEC Form 4 filing across 1 company in the last 90 days.
Gregory J.D. Mumford is the Chief Financial Officer of Cipher Mining Inc., a company focused on cryptocurrency mining, particularly Bitcoin. He has been involved in the company's financial operations as it develops its business in the emerging technology sector.
| Role | Chief Financial Officer |
|---|---|
| Notability | 20/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-02 | CIFR | Cipher Digital Inc. | F — Tax withholding / forfeiture | 6.9K | $24.50 | $169K |
| 2026-07-02 | CIFR | Cipher Digital Inc. | M — Option exercise | 17.1K | — | |
| 2026-04-07 | CIFR | Cipher Digital Inc. | F — Tax withholding / forfeiture | 7.1K | $12.87 | $92K |
| 2026-04-07 | CIFR | Cipher Digital Inc. | M — Option exercise | 17.1K | — |
Gregory J.D. Mumford is the Chief Financial Officer of Cipher Mining Inc., a company focused on cryptocurrency mining, particularly Bitcoin. He has been involved in the company's financial operations as it develops its business in the emerging technology sector.…
1 primary Form 4 filings in the last 90 days, covering 1 company.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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