Cathie Wood’s ARK Invest ETFs (exchange-traded funds) made several notable portfolio adjustments on Thursday, November 6, according to daily fund disclosures. The most notable trade was a large purchase of Archer Aviation (ACHR) shares, following the company’s third-quarter earnings report.
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The electric vertical takeoff and landing (eVTOL) startup posted a net loss of $129.9 million for Q3 2025, as spending on its Midnight air taxi project stayed high. R&D costs rose to $120.7 million, while the adjusted EBITDA loss was $116.1 million. The company still makes little revenue since it is not yet in full commercial operations.
After the weak Q3 report, the stock fell 9.7% in after-hours trading on November 6, and Cathie Wood’s ARK Invest used the dip to buy 3,012,500 shares worth about $28.83 million across three funds.
Biotech and Genomics Buys Continue
ARK also remained active in the biotech space. The firm added 123,206 shares of Beam Therapeutics (BEAM), worth about $2.84 million, showing continued confidence in the company’s gene-editing technology.
In addition, ARK bought 195,084 shares of 10x Genomics (TXG) for $2.63 million, and 252,561 shares of Pacific Biosciences (PACB) worth $483,654, reinforcing its focus on genomics and life sciences.
ARK Trims Roku, Teradyne, and Healthcare Stocks
On the sell side, ARK trimmed 160,812 shares of Roku (ROKU), valued at $16.99 million. This continues a series of Roku sales throughout the week as ARK reduces exposure to the streaming platform stock.
Also, ARK sold 18,025 shares of Teradyne (TER) for $3.38 million. The company makes testing equipment for chips and industrial robots.
In healthcare, ARK trimmed 247,071 shares of Exact Sciences (EXAS), worth $17.20 million, and cut 80,550 shares of Ionis Pharmaceuticals (IONS) for about $6.02 million.
Let’s see how these stocks perform using the TipRanks Stock Comparison Tool:
