Arrowhead Pharmaceuticals Inc. (ARWR): Billionaire Ken Fisher Bets Big on Pharma

Arrowhead Pharmaceuticals, Inc. (NASDAQ:ARWR) is one of Billionaire Ken Fisher’s 15 Most Notable Moves for 2026. Arrowhead Pharmaceuticals, Inc. (NASDAQ:ARWR) is a relatively recent addition to the 13F portfolio of Fisher Asset Management. The fund first disclosed a stake in the firm in filings for the second quarter of 2024, comprising close to 12,000 shares purchased at an average price of more than $24. In the ensuing six quarters, the fund has aggressively added to this stake, with notable additions o ...