Thomas P. Hirschfeld was named the first chief operating officer of...

Thomas P. Hirschfeld was named the first chief operating officer of Halcyon Asset Management, said Parthie Orth, spokeswoman. He reports to co-chairmen John M. Bader and Alan Slifka and will lead all non-investment aspects of Halcyon's business, including a strategy to expand the firm. Mr. Hirschfeld was managing director, COO for investments and head of venture capital at J.&W. Seligman. Other members of the executive staff at J.&W. Seligman have taken over investment COO responsibilities, according to Mr. Hirschfeld. Lauren Wu, CFO of venture capital, became head of venture capital and will retain her previous responsibilities, said Mr. Hirschfeld, who recommended her for the post. Rebecca Shroyer, J.&W. Seligman spokeswoman, did not return a call by press time seeking comment.

Kirsten Burton was named senior sales executive, institutional sales, a new position at Advantus Capital Management, said Maggie Jensen, media relations consultant. Ms. Burton was vice president of institutional marketing at AllianceBernstein, a subsidiary of Alliance Capital Management LP. John Meyers, a spokesman for Alliance Capital, could not provide information on Ms. Burton's replacement by press time. Advantus, a unit of Securian Financial Group, manages more than $15 billion in assets.

Paul Black will join LCP Trustee Consulting, the consulting practice launched in December by U.K. actuarial firm Lane Clark & Peacock, as a partner on July 1, according to Mary McGrath, head of business development. He was head of investment consulting at Mellon Human Resources & Investor Solutions. Thomas Edwards, spokesman for Mellon, said the firm was "close to announcing" a replacement for Mr. Black, but couldn't do it yet.