Fund manager Charles Genocchio, of Vinva Investment Management, has traded up from the inner west to Mosman, buying the home of racehorse identity Paul Fleming.
He's spent around $12 million on the Shellbank Avenue waterfront home, having sold in Birchgrove last year.
The six bedroom, five bathroom home has expansive harbour front entertaining areas and a swimming pool.
Richard Simeon and Mark Manners sold the property.
Genocchio sold his Birchgrove home for $4,175,000.