The global investment manager has named the successor to its outgoing chief financial officer.

Calamos Investments, global investment management firm, has appointed Thomas Herman as chief financial officer, effective June 30. 

Herman will replace Nimish Bhatt, who will be stepping down in July.

With more than 25 years of investment management experience, he joins Calamos from Harris Associates, where he was CFO and treasurer for the past six years. 

Previously, from 2004 to 2010, he was a senior vice president, CFO and treasurer at Ariel Investments.