The move comes a day after the group transferred Axa-Framlington’s multi-manager range over to the platform.
Rock will continue on the funds, which he took on in June 2006, and will report to chief investment officer Richard Philbin.
AXA Framlington chief executive officer Robert Kyprianou says: “The transfer of funds to Architas is a natural part of the evolution of our offering. We would like to thank Caspar for his contribution to AXA Framlington over the past 13 years and, in particular, for all he has done to build and strengthen the performance of the AXA Framlington Multimanager funds. We wish Caspar all the very best in his new role.”