Gregory Mumford appointed CFO
Company: Cipher Mining
The claim, verbatim
Gregory Mumford, formerly a senior banker in Keefe, Bruyette & Woods' Digital Assets & Infrastructure Investment Banking group, has been appointed CFO, effective upon Farrell's retirement on October 14, 2025; he will lead the finance department, serve on the Executive Management Team, and report to CEO Tyler Page.
Source (primary)
cipher-mining 8-K exhibit (cifrex991xcfotransitionpre.htm) (SEC EDGAR (8-K Ex), press_release)
View cached copy (2026-09-29)Live source ↗
Quote: “Greg Mumford has been appointed incoming CFO. Both appointments will take effect upon Mr. Farrell’s retirement on October 14, 2025.”
How we checked this
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Additional evidence
confirms cipher-mining 8-K exhibit (cifrex991xcfotransitionpre.htm)
Quote: “Greg Mumford has been appointed incoming CFO. Both appointments will take effect upon Mr. Farrell’s retirement on October 14, 2025.”