Habit Restaurants Inc., filed with U.S. regulators this week for an IPO of common stock. The company listed Piper Jaffray, Baird and Wells Fargo among the underwriters for the IPO. The company is best known for its burgers. The company had a 43% increase in revenue to $120.4 million. The initial filing shows the company hopes to raise $86.3 million, but did not reveal how many shares would be available.