Ex-OpenAI Fund Acquires $2.6B, 5.6% Stake as Nebius Shares Surge 10%
NBIS•Nebius Group shares climbed over 10% in premarket trading after Situational Awareness, led by ex-OpenAI engineer Leopold Aschenbrenner, acquired a 5.6% stake valued at nearly $2.6 billion. The $13.67 billion fund’s investment follows Nebius’ report of almost eightfold quarterly revenue growth.
1. Nebius Shares Rally
Nebius Group shares surged over 10% in premarket trading, propelling the stock to its highest level in over two weeks.
2. Stake Acquisition Details
Situational Awareness, led by Leopold Aschenbrenner, purchased a 5.6% Nebius stake valued at nearly $2.6 billion, becoming the company’s largest shareholder.
3. Fund Background
The $13.67 billion fund recorded 148% asset growth since the end of 2025 and is managed by a former member of OpenAI’s Superalignment team.
4. Recent Financial Performance
Nebius reported nearly eightfold quarterly revenue growth earlier this month, highlighting strong operational momentum in its AI infrastructure business.
