Cathie Wood’s ARK sells AMD stock, buys Rocket Lab
Cathie Wood's ARK ETF made headline-grabbing moves on August 18th, 2026. The fund bought a substantial 160,890 shares of Rocket Lab Corp (NASDAQ:RKLB) via its ARKK ETF, investing roughly $13.21 million. This follows their previous acquisition of the company on the previous trading day. On the other hand, ARK sold 50,071 shares of Shopify Inc. (NYSE:SHOP), generating $7.44 million.
This sale is part of a larger pattern of ARK reducing its stake in Shopify over recent days. In the AI hardware sector, ARK acquired 35,089 shares of Cerebras Systems Inc (CBRS) across its ARKK and ARKW ETFs, worth $8.84 million. This addition brings ARK's investment in the company to a new level. ARK also reduced its holdings in 10X Genomics, Inc. (NASDAQ:TXG) by selling 36,478 shares across its ARKK and ARKG ETFs, totaling $2.12 million.
In the pharmaceutical field, ARK bolstered its position in Ionis Pharmaceuticals, Inc. (NASDAQ:IONS) by purchasing 26,246 shares through its ARKG ETF, worth about $1.54 million. This follows their recent increase in Ionis shares. Other notable trades included buying Cloudflare, Inc. (NYSE:NET) shares and Tempus AI Inc (TEM) shares, while selling CareDx, Inc. (NASDAQ:CDNA) and Illumina Inc (NASDAQ:ILMN) shares.
ARK's active trading pattern continues to demonstrate their strategy of focusing on emerging technologies and innovation-driven companies.
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