Van Athukorala, a senior portfolio manager, will leave the combined investment team of AMP Capital and IPAC on March 30.

“As a result of the teams merging we identified duplication in four roles,” says an AMP Capital statement.

Guneet Rana, a senior investment manager, Simon Romijn, a senior investment specialist and John Zavone, a senior portfolio manager will leave or have left.Rana and Romijn were from IPAC. Zavone and Romjin were from AMP.

The combined IPAC and AMP investment team manages about $25 billion.

Romijn has formed his own firm, Transcap Investment Ltd. after he left AMP in January. He attended Ron Bird’s workshop on asset management at the University of Technology’s Paul Woolley Centre for the Study of Capital Market Dysfunctionality last week.

Transcap is an investment consulting service on ecnvironmental, social and governance matters. Romijn hopes to do third-party marketing.