Edgy online fashion retailer Nasty Gal has quintupled the size of its Los Angeles headquarters, moving into the 50,300 square foot third and fourth floor “Carriage House” of the PacMutual Building in the city’s downtown Pershing Square. After five years of bootstrapped growth, the company raised $40 million in venture financing earlier this Summer on the strength of reported $128 million per year revenue run rate. Nasty Gal founder and Chief Troublemaker Sophia Amoruso will be our guest for PandoMonthly LA on January 31. [Source: LA Times]