Dutch cloud supplier Nebius popped on Thursday after an ex-OpenAI worker’s fund disclosed a sizeable stake within the agency.
Situational Consciousness, a hedge fund based by former OpenAI researcher Leopold Aschenbrenner, now owns 12.4 million Class A shares of the AI agency, in accordance with a submitting revealed on Wednesday. That represents a 5.6% stake.
Situational Consciousness manages billions in funds and invests within the bodily infrastructure crucial for the way forward for AI.
Nebius, which is listed within the U.S., was final seen up 7% after markets opened. The inventory is up 149% year-to-date.
Nebius shares year-to-date.
Nebius and Situational Consciousness didn’t instantly reply to CNBC’s request for remark.
Nebius has emerged as a key AI compute supplier in Europe and has secured a number of partnerships in latest months, together with a $27 billion cope with Meta in March. Nebius will present $12 billion of devoted capability and as much as $15 billion of extra compute capability over 5 years as a part of the deal.
It additionally secured a $2 billion funding from Nvidia in the identical month. The deal will see the 2 companies collaborate on AI infrastructure deployment, fleet administration, inference and AI manufacturing facility design and assist.
Aschenbrenner is a German AI researcher who was employed to OpenAI’s “Superalignment” crew in 2023 to make sure that superhuman AI methods are secure, however was finally dismissed in 2024 for allegedly leaking inside info.
He based Situational Consciousness shortly after in a bid to beat the infrastructure bottlenecks in AI improvement, together with power constraints and computing energy. Oracle, Nvidia, ASML, and Micron Know-how are amongst its different holdings.
Nebius has been seeking to overcome energy constraints as Europe faces significantly larger electrical energy costs than the U.S. It introduced a $2.6 billion cope with Bloom Vitality final week to deploy Bloom’s gasoline cell expertise to generate electrical energy quicker at its information facilities within the U.S.

