A possible sale of Kiwi Wealth comes after KGH sold its online investment platform, Hatch, and its insurance business last year.
The recent divestments led some analysts to suggest KGH wanted to focus on Kiwibank, The Australian Financial Review said.
NZ Post, the Super Fund and ACC have all been approached for comment.
Kiwi Wealth was started by Gareth Morgan in 2000 and was originally called Gareth Morgan Investments. In 2012 it was sold to KGH and a subsidiary of NZ Post.
A part of KGH was sold to the Super Fund and ACC in 2016, with NZ Post remaining the main shareholder.
Kiwi Wealth now has about $9 billion under management and was awarded default KiwiSaver fund provider status in 2021.