Robert P. Brown was named president of Fidelity Investments bond group, one of a number of appointments Fidelity announced Friday for its fixed-income division.
Mr. Brown replaces Christopher Sullivan, who was named head of institutional fixed income, a new position.
Mr. Brown was president of money markets at Fidelity. Nancy D. Prior, a managing director of credit research, succeeds him as president of money markets.
David E. Hamlin, also a managing director of credit research, was named head of research for fixed income, also a new position.
Vin Loporchio, a Fidelity spokesman, said replacements for the credit research positions left open by Ms. Prior and Mr. Hamlin will be named shortly.
All four executives will report to Charles S. Morrison, president of Fidelity's fixed-income division.
As of Sept. 30, the company's fixed-income division oversaw more than $729 billion in retail, intermediary and institutional client assets globally.