As Head Of Fidelity, Abigail Johnson Is Just Getting Started

Based on family history, and her own work ethic, Abigail Johnson’ s tenure as head of Fidelity Investments is probably going to be a long one. Johnson, the 55- year-old chief executive of the Boston financial giant, assumed the chairman’ s role in December, but only after her famous father, Edward C.“ Ned’’ Johnson 3 d, stepped down— at age 86.. Last week, Fidelity slashed the…