Abigail Johnson

CEO, Fidelity Investments Rank on list: 9

Net worth: $15 billion

Source of wealth:

Money management Citizenship: U.S.

Johnson has served as CEO of Fidelity Investments since 2014 and has been chairman since 2016. Her grandfather, Edward Johnson II, founded the Boston-based mutual fund giant in 1946. She owns an estimated 24.5% stake in the firm, which has nearly $2.9 trillion in managed assets. The Massachusetts resident worked summers at Fidelity through college and joined full-time as an analyst in 1988 after receiving a Harvard M.B.A.