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Cathie Wood Just Bet Big on This Biotech Stock

Ionis Pharmaceuticals' shares are down more than 27% so far this year. What does Cathie Wood see that others are missing?

Cathie Wood Just Bet Big on This Biotech Stock

Published July 18, 2026 · Category: Finance

Overview

Cathie Wood's ARK Genomic Revolution ETF (NYSEMKT: ARKG) focuses on companies in the genomics sector, especially in healthcare. Since the beginning of July, Wood has, through this Ark Invest exchange-traded fund (ETF), bought $15.3 million worth of Ionis Pharmaceuticals (NASDAQ: IONS), a biotech company based in Carlsbad, California.

The stock is down nearly 37% from its 2026 high earlier this month, with much of that decline coming after it and its partner AstraZeneca announced a surprise late-stage trial failure regarding eplontersen, a medicine used to treat patients with transthyretin amyloidosis cardiomyopathy, or ATTR-CM, a rare heart disease. All of Wood's recent Ionis purchases came after that announcement, suggesting she is taking advantage of the stock's decline to buy more shares while maintaining a long-term view that the company is worth investing in.

Let's see what she may be seeing.

Details

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Source

Originally published at www.fool.com.

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Disclaimer: This article is for informational purposes only and does not constitute investment advice. Data may be delayed up to 15 minutes. Past performance is not indicative of future results. Consult a licensed financial advisor before making investment decisions.