Cathie Wood Buys CoreWeave and Kratos While Trimming Teradyne and Rocket Lab

TLDR

• Cathie Wood’s ARK Invest bought ~$19.4M in CoreWeave despite a 19% stock drop following mixed Q4 earnings
• ARK’s largest trade was a $23.2M purchase of Kratos Defense & Security Solutions
• ARK sold $12.9M worth of Teradyne shares, continuing a recent trend of reducing that position
• Rocket Lab shares were trimmed by ARK after earnings beat expectations but the stock still fell ~5%
• ARK also sold Roku shares and bought into biotech firm Generate Biomedicines

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Cathie Wood’s ARK Invest made several portfolio moves on Friday, February 27. The trades included both new buys and ongoing position reductions across tech, defense, and biotech.

The biggest purchase of the day was in Kratos Defense & Security Solutions. ARK bought 252,169 shares worth $23.2 million. Kratos focuses on unmanned aircraft and autonomous defense systems, which fits ARK’s robotics and automation investment themes.

The second largest buy was in CoreWeave, an AI cloud infrastructure company. ARK picked up 198,980 shares worth about $19.4 million, spread across its ARKK and ARKW ETFs.

CoreWeave, Inc. Class A Common Stock, CRWV

The CoreWeave buy came on the same day the stock fell 19%. The drop followed mixed fourth-quarter results that showed strong revenue but also wider losses and heavier spending than investors expected.

ARK’s decision to buy into the decline suggests the firm views the selloff as a short-term reaction rather than a sign of trouble in the business. CoreWeave provides AI computing capacity, an area that has seen strong demand growth.

CoreWeave currently holds a Moderate Buy consensus on Wall Street. The average price target of $114.18 implies about 43.5% upside from recent levels, based on eleven Buy and eight Hold ratings.

ARK Reduces Teradyne and Rocket Lab

On the selling side, ARK offloaded 38,773 shares of Teradyne worth $12.9 million across multiple ETFs. Teradyne makes semiconductor testing equipment and industrial automation tools. This follows a pattern of ARK reducing its Teradyne position over the past week.

ARK also sold 46,921 shares of Rocket Lab worth around $3.4 million. Rocket Lab had just reported quarterly results that beat both earnings and revenue expectations, but the stock still closed about 5% lower on Friday.

Rocket Lab reported strong launch activity and a growing backlog. However, the first launch of its larger Neutron rocket was pushed back to late 2026, which may have dampened investor enthusiasm.

Other Moves Across Biotech and Tech

ARK sold 46,389 shares of Roku worth $4.3 million from its ARKK ETF. No specific reason was given for the sale.

In biotech, ARK bought 459,525 shares of Generate Biomedicines worth $7.4 million through its ARKG ETF. It also sold 39,423 shares of Ionis Pharmaceuticals for $3.2 million.

ARK sold 10,590 shares of Deere & Co for $6.6 million and trimmed 27,334 shares of Guardant Health for $2.7 million.

Smaller moves included reducing PagerDuty by 205,211 shares for $1.5 million and buying 14,097 shares of Brera Holdings for around $15,600.

The CoreWeave and Kratos buys were the two largest single trades ARK made on February 27, totaling over $42 million combined.

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