Arm Up 10% as CEO Joins SoftBank

Arm shares rose ~10% to a new 52‑week high after CEO Rene Haas assumed an additional role at SoftBank Group International.
Effective Monday, Haas stays Arm’s CEO and board member, also overseeing coordination of semiconductor and AI firms in SoftBank’s portfolio.
SoftBank, Arm’s largest shareholder, allayed earlier concerns of stake reduction, indicating the partnership remains strong amid AI‑driven CPU shortages and higher prices.