GLOBAL – John Boneparth, head of global institutional management at Putnam Investments, is to retire in September.

The Boston-based asset management subsidiary, a sister firm of consultant Mercer at Mercer Marsh & McLennan, made the announcement late last week.

It said that institutional head Sandra Whiston and Jeffrey Peters, head of Putnam Alliance Business, would now report to Putnam president and chief executive Ed Haldeman.

"This new reporting underscores my commitment to our clients, to the institutional business and to our alliance relationships," said Haldeman. “They will provide leadership to continue building our institutional business."

Boneparth joined Putnam in 1992 and become head of the international business in 1999. He’d been in the global institutional role for about a year after the resignation of his predecessor John Brown – who quit to “pursue personal interests and more focused time with his family”.

Whiston has been with the firm for 18 years, while Peters joined in 1999 from McKinsey & Co.