Leopold Aschenbrenner Commits $400M to Source Foundry, Total Stake Hits $500M

Former OpenAI researcher Leopold Aschenbrenner adds $400M to Source Foundry, bringing total investment to $500M. The move signals recovery for his fund following recent margin calls and near-collapse.

Woofun AI reports that Leopold Aschenbrenner has invested an additional $400 million into Source Foundry, a secretive AI chip manufacturing startup. This injection brings his total commitment to the company to $500 million, following an earlier $100 million allocation. The transaction, finalized on Tuesday, serves as an initial indicator of Aschenbrenner's strategy to stabilize his Situational Awareness fund after it faced imminent collapse last week due to successive margin calls from Wall Street lenders.

Source Foundry, established in San Francisco in 2025 by CEO Abdulmalik Obaid and Joe Burg, is developing simplified semiconductor lithography processes. The startup aims to challenge ASML's dominance in extreme ultraviolet (EUV) lithography by creating faster and more cost-effective manufacturing tools. This approach seeks to address the disparity between exponential AI compute demand and linear traditional chip production capacity.