Vanguard head of marketing Colin Bold will leave the company at the end of year after three years with the firm, citing personal reasons.
"I need to be in Sydney by January next year. My role at Vanguard required me to be based in the company's headquarters of Melbourne. I am confident I will be back in the industry soon," he said.
Vanguard principal and head of retail Robin Bowerman will take on the role in the interim until a replacement is found.
Bowerman is currently reviewing the structure of the marketing team and the outcome will be finalised by Christmas, Bold said.
Vanguard currently has 14 people in its marketing team.
In April 2007, the company restructured its marketing business along functional lines rather than on a retail and institutional basis. As a result, Vanguard created two new roles with Bold overseeing the expanded marketing team.