Long-time private markets head steps down at Howard Hughes Medical

Mark Barnard will step down as managing director of private investments for the Howard Hughes Medical Institute endowment, effective June 2016. He has been with the institute since 1995.

Barnard will be succeeded by Greg DeNinno, currently the $18.2 billion endowment’s director of private investments.

Barnard oversaw a portfolio of global private equity, venture capital, real assets and natural resources, as well as leading a team of three directors and working on the senior management team. Barnard will remain involved with HHMI as a part-time adviser to the endowment fund through November 2016.

DeNinno began as an analyst in 2008 and became director of private investments the next year. His focus has been on European private equity, venture and small cap buyouts. Before HHMI he worked on acquisitions at Intelstate.

DeNinno will seek to hire an experienced director. Barnard’s next act was not announced.

Headquartered in Chevy Chase, Maryland, HHMI is dedicated to scientific research and education, with a focus on human health and biology. The institute has a global network of scientists.

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