Former OpenAI researcher Leopold Aschenbrenner’s hedge fund Situational Awareness disclosed its public U.S. equity holdings in the SEC 13F filing for Q4 2025, revealing a strong preference for companies powering AI with electricity and infrastructure over those focused on developing large models. The data shows the fund’s U.S. stock exposure totals $5.52 billion across 29 public companies, but the core assets are highly concentrated in just a few AI compute infrastructure providers.

Ex-OpenAI Researcher Bets on AI Infrastructure as Bitcoin Rigs Pivot to Data Centers
Leopold Aschenbrenner’s hedge fund is heavily invested in AI infrastructure firms, highlighting how Bitcoin mining sites are repositioning as AI data centers and shifting value from hash rate to compute power control.

