Ace hedge fund manager Cathie Wood’s ARK Invest ETFs (exchange-traded funds) executed several notable trades on Wednesday, September 10. The largest purchase was 15,742 shares of Synopsys (SNPS) across the ARK Autonomous Technology & Robotics ETF (ARKQ) and the ARK Space Exploration & Innovation ETF (ARKX), worth about $9.5 million. The move shows ARK’s strong view on the chip design software firm as demand for AI chips keeps rising.
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ARK Invest’s other notable purchases include 200,000 shares of newly listed Swedish fintech company Klarna Group (KLAR), for roughly $9 million. Additionally, Wood bought 66,836 shares of cloud data management company Rubrik (RBRK), valued at roughly $6.6 million.
In biotech, the ARK Genomic Revolution ETF (ARKG) boosted its exposure to Prime Medicine (PRME), adding 230,755 shares for nearly $950,710. The purchase followed an earlier buy this week, signaling growing interest in gene-editing platforms. The ARK Innovation ETF (ARKK) also lifted its stake in Twist Bioscience (TWST) with a 221,681-share purchase worth $5.6 million, continuing a week-long buying streak in the synthetic biology name.
Wood Trims Stakes in These Stocks
On the sell side, ARK offloaded 54,482 shares of Kratos Defense (KTOS) across ARKQ and ARKX for $3.5 million. It also sold 21,444 shares of Roblox (RBLX) for $2.8 million through ARKW, along with 54,626 shares of Rocket Lab (RKLB) for $2.6 million and 19,632 shares of Shopify (SHOP) for $2.8 million.
In addition, ARK cut 29,388 shares of Tempus AI (TEM), a health-tech company known for its precision medicine platform, across ARKK and ARKG, worth $2.4 million. TEM stock has surged 132% year-to-date, highlighting the strong run that may have prompted profit-taking.
These sales indicate ARK is adjusting its mix of holdings to manage risk and respond to changing market trends.
Let’s take a brief look at how all these stocks perform on TipRanks’ Stock Comparison Tool:
