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Leopold Aschenbrenner Leopold AschenbrennerPhotographer: Josh Edelson

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By Hema Parmar

August 5, 2026 at 6:46 PM EDT

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Just days after his hedge fund was on the brink of collapse, Leopold Aschenbrenner has made his return to the investing scene, plunking down $400 million to back a privately held company, according to people familiar with the matter.

The investment, completed on Tuesday, was the first sign of how Aschenbrenner intends to pick up the pieces of his Situational Awareness after it nearly buckled under a barrage of margin calls from lenders across Wall Street last week.

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