Situational Awareness invests $400M in Source Foundry after near-collapse

Six weeks ago, Situational Awareness looked like a cautionary tale about betting too hard on a single thesis. Now it’s writing nine-figure checks again. The AI-focused hedge fund, founded by Leopold Aschenbrenner, has committed $400 million to Source Foundry, a private startup building chip manufacturing tools optimized for AI workloads. The fresh capital brings Situational Awareness’s total stake in the company to $500 million, including an earlier $100 million position. From $45B to $10B and back to writing big checks Situational Awareness saw its assets under management peak at $45 billion before a brutal stretch of AI-related losses in July 2026 sent that figure crashing to roughly $10 billion. To stabilize the fund, Aschenbrenner’s team executed a fire sale of its public stock holdings, offloading the entire portfolio to Citadel in late July. Aschenbrenner previously worked at OpenAI and authored the widely circulated 2024 essay titled “Situational Awareness,” which argued that AI development was moving faster than most observers recognized. That essay essentially became the fund’s founding document and gave it its name. The investors who backed him at launch included the Coll...