Macromill, Inc. announced that Shinichiro Oka, Executive Officer, Global CHRO of the Macromill Group is leaving the company on 31 May to pursue another opportunity. Toru Sasaki, Representative Executive Officer and Head of Japan Operation, Masahiro Shimizu, Executive Officer and Global CFO, and Willem Matthijs Elias, Executive Officer Europe and America Operation and MetrixLab CEO, will share his roles and responsibilities.