Boston-based Fidelity Investments today announced the appointment of Nancy D. Prior as president of the company’s fixed-income division, which includes the company’s bond and money market divisions.

The fixed-income division manages more than $750 billion in assets on behalf of retail, intermediary and institutional clients globally and is headquartered in Merrimack, N.H.

She succeeds and reports to Charlie Morrison, president of Fidelity’s $1.9 trillion asset management organization.

She has also been named vice chairman of Pyramis Global Advisors, a Fidelity investment company.

With Fidelity for 12 years, Prior most recently served as president of money markets and short duration bonds and as a member of the fixed-income leadership team.

Before heading money markets, she was managing director of credit research, where she was responsible for leading a team of research associates in the financial sector.

Prior joined Fidelity in 2002 as a senior legal counsel for fixed income, eventually rising to senior vice president and deputy general counsel.

Before joining Fidelity, she was general counsel at Advantage Schools Inc. and an attorney at Mintz Levin in Boston.