Gregory J.D. Mumford
Chief Financial Officer · Cipher Digital Inc.
Individual
- 2025
- Oct 8, 2026
- 6
Filings (90d)
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Gregory J.D. Mumford files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- V3 Holding Ltd - $78.50M in CIFR purchases and sales in the last 12 months
- Tyler Page - $5.54M in CIFR purchases and sales in the last 12 months
- William Iwaschuk - $3.90M in CIFR purchases and sales in the last 12 months
- Patrick Arthur Kelly - $3.02M in CIFR purchases and sales in the last 12 months
- Cary M. Grossman - $1.79M in CIFR purchases and sales in the last 12 months
- Wesley Hastie Williams - $1.27M in CIFR purchases and sales in the last 12 months
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Frequently asked questions
Who is Gregory J.D. Mumford?
Gregory J.D. Mumford is a corporate insider, tracked as Chief Financial Officer of Cipher Digital Inc. (CIFR). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Gregory J.D. Mumford submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
