WindHQ JV interest sale
Company: Cipher Mining
The claim, verbatim
Sold 49% interests in WindHQ JV sites (Alborz, Bear, and Chief facilities) to Canaan U.S. Inc.
Source (primary)
Cipher Mining 10-K filed 2026-02-24 (SEC EDGAR, sec_filing)
View cached copy (2026-08-31)Live source ↗
Quote: “On February 19, 2026, we sold our 49% interests in our WindHQ JV sites to Canaan U.S. Inc.”
How we checked this
Checked on September 16, 2026. The cited source supports every part of this claim.
The filing reports the February 19, 2026 sale to Canaan U.S. Inc. and separately identifies the WindHQ JV sites as the Alborz, Bear and Chief facilities held at 49%.
Confirmed in the source:
- Cipher sold its 49% interests in the WindHQ JV sites to Canaan U.S. Inc. on February 19, 2026
- The WindHQ JV sites are the Alborz, Bear and Chief data centers, in each of which Cipher held a 49% membership interest
What we did: Read our cached copy of SEC EDGAR (https://www.sec.gov/Archives/edgar/data/1819989/000181998926000009/cifr-20251231.htm) in full (477,779 characters, retrieved August 31, 2026) and checked each assertion in the claim against it.
Additional evidence
confirms Cipher Mining 10-K filed 2026-02-24
Quote: “On February 19, 2026, we sold our 49% interests in our WindHQ JV sites to Canaan U.S. Inc.”