MEDecision Inc., a Wayne provider of health-care management services, said it had added four new senior executives.

Carole A. Hodsdon is executive vice president and chief technology officer. She has held posts, including vice president of enterprise technologies, senior vice president of application development, and senior vice president of eCommerce at Cigna Corp., Philadelphia.

Stephen M. Decker is senior vice president of client operations. He has held posts at Cigna, including senior director of talent acquisition, and operations senior director, service operations.

Thomas P. DeGemmis is senior vice president of new business sales. He has been senior vice president and general manager of Cardinal Health's independent pharmacy segment.

Elizabeth S. Sanford is senior vice president of account management. She has held several posts at Cigna, including vice president of account management and sales operations.

The Agnes Irwin School Board of Trustees said that on Aug. 1, Mary F. Seppala would become the 12th head of the Agnes Irwin School, a Rosemont PreK through 12th grade school for girls. Since 2005, she has been the head of the Munich International School, a PreK through 12th grade International Baccalaureate World School.

Wilmington Trust Co. named Charles Russella president of Wilmington Trust Retirement & Institutional Services Co. Russella came to Wilmington Trust last year through the acquisition of AST Capital Trust Co.

BCG Securities Inc. of Delran hired Mark Barron as director of operations. Barron had been senior assistant operations manager at Citi Smith Barney Global Wealth Management in Philadelphia.

Harleysville Insurance named Jonathan Young senior vice president and chief claims officer. Young had been managing partner of the New York office of the law firm Sills Cummis & Gross P.C.

Lincoln Financial Distributors, the distribution company of Lincoln Financial Group, Radnor, hired Thomas P. O'Neill as chief operating officer. O'Neill had been president of the financial-institution division of Aegon Financial Services Group Inc.