TLDR
- Cathie Wood’s ARK Invest purchased 521,867 Pinterest shares worth $17.17 million after the stock plunged 21.8% on November 5, 2025
- The investment firm sold 105,576 Roku shares for $11.2 million, continuing a pattern of reducing its streaming platform position
- ARK divested 56,095 Robinhood shares valued at $7.67 million despite strong Q3 earnings from the trading platform
- The firm also bought 33,823 Guardant Health shares worth $3.32 million in the healthcare technology sector
- Additional portfolio changes included sales of Reddit, SoFi, and various biotech and aerospace companies
Cathie Wood’s ARK Invest executed major portfolio changes on November 5, 2025. The trades show strategic repositioning across technology, fintech, and healthcare sectors.
The biggest move involved Pinterest stock. ARK purchased 521,867 shares distributed across three ETFs: ARKK, ARKW, and ARKF. The combined investment totaled $17.17 million.
The purchase came after Pinterest dropped 21.8% in one day. The social media company reported quarterly revenue that met analyst estimates. However, earnings fell short of expectations and the outlook disappointed investors.
Wood’s team bought the stock at reduced prices following the selloff. The timing suggests confidence in Pinterest’s long-term prospects. The average purchase price came in around $25.76 per share.
Major Stock Sales in Streaming and Trading Platforms
ARK Invest sold a large portion of its Roku holdings. The ARKK ETF divested 105,576 shares worth $11.2 million. This marks the continuation of a week-long selling pattern in the streaming platform.
The firm also reduced its Robinhood position. ARK sold 56,095 shares through its ARKK fund for $7.67 million. The sale occurred despite Robinhood beating third-quarter earnings and revenue estimates.
Other fintech sales included Reddit and SoFi Technologies. The ARKW fund sold 11,989 Reddit shares valued at $2.25 million. ARKF divested 60,808 SoFi shares worth $1.83 million.
Healthcare and Biotech Portfolio Adjustments
ARK made a healthcare purchase through its genomics-focused fund. The ARKG ETF bought 33,823 Guardant Health shares for $3.32 million. Guardant Health develops blood-based cancer screening technology.
The same fund reduced biotech positions. ARKG sold 87,072 Adaptive Biotechnologies shares for $1.47 million. Additional sales included Incyte Corp and Ionis Pharmaceuticals stocks.
ARK’s aerospace funds ARKQ and ARKX trimmed multiple holdings. They sold 35,603 Rocket Lab shares totaling $2.01 million. AeroVironment sales reached 5,015 shares worth $1.83 million. Teradyne positions were also reduced across these funds.
The ARKF fund sold 9,696 Futu Holdings shares for $1.74 million. The Chinese fintech company operates online brokerage platforms. This sale reduces ARK’s international fintech exposure.
Total sales exceeded total purchases in dollar value. This indicates portfolio rebalancing rather than increasing overall exposure. ARK shifted capital from diverse holdings into concentrated positions like Pinterest.
The firm publishes all trades daily after market close. This transparency lets investors track Wood’s investment decisions in real time. The November 5 trades reveal a focus on buying beaten-down tech stocks while taking profits elsewhere.
ARK’s Pinterest investment represents a contrarian bet on recovery. The healthcare purchase shows continued interest in medical innovation. The Roku and Robinhood sales suggest profit-taking or strategy shifts in streaming and fintech sectors.
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