We just covered the From Fired Researcher to $13.7 Billion King: How Leopold Aschenbrenner Broke the Hedge Fund World and Cipher Digital Inc. (NASDAQ:CIFR) ranks 31st on this list.
Filings for the first quarter of 2026 show that Leopold Aschenbrenner has sold off the stake his hedge fund had in Cipher Digital Inc. (NASDAQ:CIFR)
In the fourth quarter of 2025, the fund owned 10.4 million shares in the company. Cipher develops and operates industrial-scale data centers for bitcoin mining and high-performance compute hosting in the United States. It develops HPC data center facilities across various sites for hyperscaler tenants, and operates power at one bitcoin mining data center.
It also maintains a pipeline across various sites. Aschenbrenner has generally been bullish on Bitcoin miners turning to AI compute. However, he has sold off his Cipher Digital Inc. (NASDAQ:CIFR) holding.