Founder Apoorva Mehta has a net worth $3.5 billion after new funding and is eyeing an IPO. : An Instacart shopper on the job at Acme Market in Clark, New Jersey. (Photo by Michael ... [+] Loccisano/Getty Images) Instacart closed a $265 million funding round that sent the grocery delivery app’s value to $39 billion, the company announced today. The new valuation adds more than $1 billion to the fortune of 34-year-old founder Apoorva Mehta, who Forbes calculates has a net worth of $3.5 billion. Mehta became a billionaire last year after the company raised $225 million in June.