7. Abigail Johnson – $15.1B:
The 55-year old US citizen is the granddaughter of the late Edward Johnson II. Edward founded the Fidelity Investments in 1946. While at the college, Abigail worked summers at the Fidelity Investments. After her graduation in 1988 with an MBA from Havard, she joined the company as an analyst.
In the years 2014, Abigail became the CEO of the company, and later on, she became the chairman in 2016. Abigail owns an estimate of 24% of the company. The company manages about $2.1 trillion. Her net worth is $15.1 billion.