Martin Coughlan was named head of distribution at Aegon Asset Management US, said spokesman Armel Leslie.
Mr. Coughlan replaces Tom Neukranz, who left Aegon in August a little more than a year after taking on the role in April 2015. Mr. Neukranz was not immediately available for comment.
Mr. Coughlan will report directly to Gary Black, who was named CEO in June.
Mr. Coughlan was global head of institutional sales and client service at Westwood Management. A spokesman for Westwood was not immediately available for comment on Mr. Coughlan’s replacement.
Previously, Mr. Coughlan was head of global institutional services at Calamos Advisors, where he worked under Mr. Black, who was global co-chief investment officer.