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About Sickkids
About SickKids


Brief Biography

Mr. Andrew Sheiner founded Altas Partners in 2012 following a 17-year career with Onex Corporation, a leading North American private equity firm. As a Managing Director, Andrew co-led the establishment of Onex Partners (Onex’ large cap private equity platform) in 2001 and oversaw its other investing platforms, including ONCAP (mid-cap private equity investing) and Onex Credit Partners. Andrew previously worked for McKinsey & Company and a private family business. Andrew was educated at McGill University and Harvard University.

Andrew serves on the Board of Directors of the York School and is a member of Harvard Business School’s Canadian Advisory Board. Andrew and his wife Liza Mauer live in Toronto with their four children.

Mr. Sheiner joined the Board of Trustees in 2013.