From Fired Researcher to $13.7 Billion King: How Leopold Aschenbrenner Broke the Hedge Fund World

18. Solaris Energy Infrastructure, Inc. (NYSE:SEI)

Situational Awareness LP’s Stake: $62 Million

Solaris Energy Infrastructure, Inc. (NYSE:SEI) first appeared in the 13F portfolio of Situational Awareness LP in the third quarter of 2025. Back then, this position comprised 1.1 million shares. In the fourth quarter of 2025, the fund added to this stake, growing it by 62% to more than 1.8 million shares. Filings for the first quarter of 2026 show that the fund owns 1.1 million shares in the firm, down 40% compared to filings for the previous quarter. The stock is up more than 46% over the past six months. The company provides modular and scalable equipment-based solutions for power generation, control and distribution, and management of raw materials used in the completion of oil and natural gas wells in the United States.

Solaris Energy Infrastructure, Inc. (NYSE:SEI) is turning heads of money managers like Leopold Aschenbrenner because it is leveraging expertise in high-capacity equipment logistics to build an infrastructure moat that addresses the primary bottleneck of the AI boom: the multi-year queue for power grid interconnects. The company is realizing immediate revenue gains as the mobile power infrastructure fleet deploys rapidly across industrial and digital infrastructure projects. Solaris generated total revenue of $196.2 million for Q1 2026, marking a 55.3% year-over-year increase compared to the $126.3 million recorded in Q1 2025. The quarter reflected a high-margin operational balance, with high-predictability leasing revenues surging to $105.4 million, while field and operational service revenues scaled up to $90.9 million.