Jon S. Fossel's political career was marked by his tenure as a Republican member of the New York State Assembly, representing the 93rd district from 1979 to 1982.

Fossel joined Alliance Capital Management around 1983, where he held the position of President of the mutual fund business.

[2] Fossel joined OppenheimerFunds as president and Chief Operating Officer in 1987,[3] and by 1989, he had risen to the position of chairman and CEO.

In 1995, Fossel resigned from OppenheimerFunds to pursue other interests, including a potential foray into politics and public service.

This approach was exemplified by his practice of moving his individual retirement account into the two OppenheimerFunds that had performed the worst in the previous year,[7] a strategy that he claimed consistently outperformed the average of their funds.

It manages a 4,500-acre preserve that acts as a migratory corridor between sections of the Lee Metcalf Wilderness, contributing to biodiversity and habitat maintenance.

In addition to visiting Africa 28 times, Fossel has hunted 16 different species in North America, including over 100 deer.