Cathie Wood, the founder and CEO of ARK Invest, is one of the most followed investors on Wall Street. She manages a range of ETFs (exchange-traded funds) focused on innovation in areas like AI, genomics, robotics, and fintech. On Friday, October 17, her ARK Invest funds made several notable portfolio moves, showing a stronger focus on tech and healthcare stocks.
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Wood Adds Deere, ATAI, and Pony.ai
The biggest buy came from the ARK Autonomous Technology & Robotics ETF (ARKQ) and the ARK Space Exploration ETF (ARKX), which together added 9,386 shares of Deere & Co. (DE) worth about $4.29 million. Deere, the U.S. farm and construction equipment maker, saw its stake increased for the second time this week after a smaller earlier purchase. While not a usual space or tech stock, Deere’s growing use of AI and autonomous tools in farming aligns well with ARK’s focus on next-generation innovation.
Meanwhile, the ARK Genomic Revolution ETF (ARKG) added 725,281 shares of ATAI Life Sciences (ATAI) worth about $3.97 million. ATAI, a biotech firm focused on mental health treatments, continues to attract ARK’s attention as it expands its research pipeline.
In a smaller trade, ARKQ also bought 16,371 shares of Pony.ai (PONY) valued at about $334,000. The China-based self-driving technology company remains one of ARK’s consistent AI investments this month.
Wood Trims Stakes in Rocket Lab and Biotech Holdings
On the sell side, ARKQ and ARKX reduced their position in Rocket Lab Corp. (RKLB), selling 66,070 shares worth roughly $4.43 million. Rocket Lab, the aerospace manufacturer and satellite launch provider, has seen multiple rounds of trimming by ARK in recent sessions.
ARKG also cut its biotech exposure by selling 72,537 shares of Adaptive Biotechnologies (ADPT) valued at about $1.25 million and 71,147 shares of Natera Inc. (NTRA) worth $1.29 million. Both companies specialize in genetic testing and diagnostics, and the moves reflect a broader rebalancing within ARK’s healthcare holdings.
Additionally, ARKG sold 13,758 shares of Quantum-Si Inc. (QSI) for about $349,000. Quantum-Si, a semiconductor-based life sciences firm, has faced weak demand for its protein sequencing tools in recent quarters.
Let’s see how these stocks perform using the TipRanks Stock Comparison Tool.
