Cathie Wood’s ARK sells Amazon stock, buys CoreWeave and Iambic

On Thursday, October 15th, 2026, Cathie Wood’s ARK ETF made several significant transactions across various sectors. The most notable move was the purchase of 1,184,955 shares of Iambic Therapeutics (NASDAQ:IAM) for $18,959,280, indicating a strong interest in the biotechnology sector. ARK also increased its stake in Recursion Pharmaceuticals (NASDAQ:RXRX) by acquiring 4,230,235 shares for $15,821,078, continuing its focus on innovative biotech firms.

In the tech sector, ARK bought 192,566 shares of CoreWeave (NASDAQ:CRWV) for $12,666,991, while also accumulating shares of Rocket Lab Corp (NASDAQ:RKLB) and selling shares of Amazon.com Inc. (NASDAQ:AMZN), Shopify Inc. (NYSE:SHOP), and Palantir Technologies Inc. (NYSE:PLTR). Overall, the ETF’s activity highlights a strategic reallocation towards biotechnology and innovative tech companies, while reducing exposure to select large-cap tech stocks.

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