Leopold Aschenbrenner is putting serious money against AI leaders.
The former safety researcher, who was fired from OpenAI in 2024, has revealed in the latest 13F filing that his fund Situational Awareness LP has more than doubled its disclosed equity exposure in the first quarter of 2026, growing from $5.5 billion at the end of 2025 to $13.67 billion by March 31.
Aschenbrenner had alleged that OpenAI was not taking security seriously enough around its most sensitive AI research and that this information could fall into the hands of foreign adversaries like China.
He argued that OpenAI's safety and security practices were inadequate given the stakes of what the company was building.
OpenAI disputed this, saying his termination was due to leaking confidential information, not due to raising safety concerns.
The whistleblower shot to prominence with his "Situational Awareness" essay series, in which he argued artificial general intelligence (AGI) could arrive as soon as 2027.
Aschenbrenner's largest long positions are concentrated in companies building the power and computing backbone of the AI industry, many of which started life as Bitcoin (BTC) miners.
His disclosed stakes include IREN (NASDAQ: IREN), Core Scientific (NASDAQ: CORZ), Riot Platforms (NASDAQ: RIOT), CleanSpark (NASDAQ: CSLK), Bitfarms, now known as Keel Infrastructure Corp (NASDAQ: KEEL), Bitdeer (NASDAQ: BTDR), and HIVE Digital (NASDAQ: HIVE).
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