His team now reports to Colin Clark, executive director for global client group.
Earlier in June chief executive Chris Samuel departed the company.
Chene joined Ignis in October 2011, after working as chief executive and chairman of AllianceBernstein, where he joined in 1998.
In March, Standard Life Investments agreed terms with Phoenix Group to purchase the entire share capital of Ignis Asset Management for £390m in cash. The FCA confirmed the deal on 1 July.