David Thomson and his family own a media and publishing fortune founded by their grandfather Roy Thomson. Now in its third generation, the family business is run via private holding company Woodbridge, which holds a 57% in Thomson Reuters; David Thomson serves as chairman of Thomson Reuters. His brother Peter Thomson is co-chair of Woodbridge, which holds assets owned by Roy Thomson's seven grandchildren, among them cousin Sherry Brydson. Thomson Reuters stock makes up about 70% of the family's fortune, though the family also holds stakes in Strategic Hotels & Resorts and Canadian news operation The Globe and Mail. David Thomson is part owner of the National Hockey League's Winnipeg Jets; Woodbridge has a minority stake in the Montreal Canadiens NHL hockey team. David has a diverse art collection, reported to include pieces from Pablo Picasso and the world's top collection of English romantic painter John Constable.