CEO and CFO
Company: Cipher Mining
The claim, verbatim
Tyler Page is Chief Executive Officer and Gregory Mumford is Chief Financial Officer of Cipher Digital.
Source (primary)
cipher-mining 8-K exhibit (d134900dex991.htm) (SEC EDGAR (8-K Ex), press_release)
View cached copy (2026-10-14)Live source ↗
Quote: “Tyler Page Gregory Mumford Chief Executive Officer Chief Financial Officer”
How we checked this
Checked on October 16, 2026. The cited source supports every part of this claim.
The 'Today's Presenters' slide of Cipher Digital's investor presentation lists Tyler Page as Chief Executive Officer and Gregory Mumford as Chief Financial Officer.
Confirmed in the source:
- Tyler Page is Chief Executive Officer of Cipher Digital
- Gregory Mumford is Chief Financial Officer of Cipher Digital
What we did: Read our cached copy of SEC EDGAR (8-K Ex) (https://www.sec.gov/Archives/edgar/data/1819989/000119312526419743/d134900dex991.htm) in full (17,922 characters, retrieved October 14, 2026) and checked each assertion in the claim against it.
Additional evidence
confirms cipher-mining 8-K exhibit (d134900dex991.htm)
Quote: “Tyler Page Gregory Mumford Chief Executive Officer Chief Financial Officer”