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The man deciding military AI strategy held substantial stakes in the very firms those decisions affected. Emil Michael, undersecretary of defense for research and engineering, made three substantial trades between January and June 2026—xAI, Perplexity, and Brex—collecting between $15 million and $75 million in estimated proceeds, according to federal ethics disclosures. Those trades overlapped with…

Billionaire hedge fund manager Stanley Druckenmiller, who runs the Duquesne Family Office, made a number of interesting portfolio moves during the second quarter. Among them, the firm sold some of its Sandisk(NASDAQ: SNDK) stock and piled into three other AI-related companies: Taiwan Semiconductor (NYSE: TSM), Alphabet (NASDAQ: GOOG) (NASDAQ: GOOGL), and Amazon (NASDAQ: AMZN).