Fidelity Investments appointed a new slate of executives to senior roles, including finance chief, in one of the biggest management reshuffles in Abigail Johnson’s near-decade-long run as chief executive officer.

The moves reflect Johnson’s commitment to rotating members of her leadership team into new roles, exposing them to different parts of the company and bringing new perspectives to those assignments. All but one of Fidelity’s major businesses, and now many of its corporate functions, have welcomed new leaders since late 2022. Among the changes: Maggie Serravalli, the finance chief, was appointed chief administrative officer.