The acqusition was announced in July with a purchase price of $1.03bn, subject to certain adjustments. The transaction was financed through a combination of debt and cash.

Following the completion of the deal, Calastone’s 250 employees will now join SS&C Global Investor & Distribution Solutions, reporting to general manager Nick Wright.

Calastone CEO Julian Hammerson described the move as "an exciting new chapter" for Calastone.  “Joining SS&C gives our clients and employees access to greater scale, investment, and opportunity. We’re proud of what we’ve built and look forward to contributing to SS&C’s continued growth and global success."