Nucleus confirmed HPS was now a majority shareholder and that its existing shareholder Epiris - James Hay's parent company - would retain a "significant minority stake".
In May, Nucleus accused rival platform Novia of “aggressively” recruiting its staff after it lost four employees to the company over a 12-month period.
In June, Nucleus said farewell to 10 senior employees as the business looked to fill a further 30 roles by year end.
Since the platform’s change in ownership, Nucleus’ strategy has been to focus on achieving scale with Rowney saying a bigger platform will be able to offer a better service to advisers.
The company has also focused on the FNZ migration of James Hay clients - with Nucleus clients to eventually follow.
sonia.rach@ft.com