Leopold Aschenbrenner runs Situational Awareness LP. Former OpenAI researcher who built a hedge fund around one idea: AGI is arriving by 2027 and markets haven't priced it in. Bets on the infrastructure of AI — power, compute, silicon — not the models themselves. Grew to $5.5B in disclosed long equity exposure in under 18 months. As of the Q2 2026 13F filing, the disclosed long-equity portfolio is valued at $20.2B across 26 positions. The largest holdings are SANDISK CORP, MICRON TECHNOLOGY INC, and BLOOM ENERGY CORP (SANDISK CORP alone is 28.0% of the book).

New positions opened in the latest quarter include CEREBRAS SYSTEMS INC, KEEL INFRASTRUCTURE CORP, and NEBIUS GROUP N.V.. Recently exited names: ASML HLDG NV N Y REGISTRY, ASML HLDG NV N Y REGISTRY, and ADVANCED MICRO DEVICES INC.

Leopold Aschenbrenner runs Situational Awareness LP. Former OpenAI researcher who built a hedge fund around one idea: AGI is arriving by 2027 and markets haven't priced it in. Bets on the infrastructure of AI — power, compute, silicon — not the models themselves. Grew to $5.5B in disclosed long equity exposure in under 18 months. As of the Q2 2026 13F filing, the disclosed long-equity portfolio is valued at $20.2B across 26 positions. The largest holdings are SANDISK CORP, MICRON TECHNOLOGY INC, and BLOOM ENERGY CORP (SANDISK CORP alone is 28.0% of the book).

New positions opened in the latest quarter include CEREBRAS SYSTEMS INC, KEEL INFRASTRUCTURE CORP, and NEBIUS GROUP N.V.. Recently exited names: ASML HLDG NV N Y REGISTRY, ASML HLDG NV N Y REGISTRY, and ADVANCED MICRO DEVICES INC.