Tiger Global Alum’s Firm Bets on Prying People Off Their Screens

Mari owns Frieze art fairs and the Escape from Alcatraz triathlon.Photographer: Amanda Edwards/Getty Images

When Hollywood super agent Ari Emanuel raised more than $2 billion for his company Mari — owner of such events as the Frieze art fairs and the Escape from Alcatraz triathlon — his backers included some of the biggest names in private investing.

Yet alongside the likes of Apollo Global Management Inc., RedBird Capital Partners and the Qatar Investment Authority, a smaller newcomer had emerged — ex-Tiger Global Management partner Greg Mazlin’s Sideline Group.