Horace P. Whitworth and Lawrence E. Gibson were promoted to managing...

Horace P. Whitworth and Lawrence E. Gibson were promoted to managing directors and co-CEOs of Thompson, Siegel & Walmsley, effective July 1, said Matt Thompson, current CEO of the value equity subsidiary of Old Mutual Asset Management (US). Mr. Thompson will become chairman, a new position. Mr. Whitworth will retain his previous responsibilities as portfolio manager and senior research analyst, and Mr. Gibson will retain his responsibilities as head of institutional marketing.

Jim Dunn joined Wilshire Associates as a vice president in the funds management group, said Kim Shepherd, spokeswoman. It is a new position. He will report to Lawrence E. Davanzo, senior managing director of the firm's Wilshire Funds Management business unit. The team Mr. Dunn joined is expanding the firm's presence in hedge funds and funds of funds, Ms. Shepherd said. Mr. Dunn was a vice president in the hedge-fund database group at Altvest, the database business of InvestorForce. Jim Morrissey, president and CEO of InvestorForce, said Barbara Vaughn, vice president of client services, is temporarily managing Mr. Dunn's responsibilities. The firm is actively searching for a permanent replacement, Mr. Morrissey said.