And Ulta Beauty CEO Dave Kimbell announced his retirement, with Kecia Steelman – the US beauty retailer’s current President ...

Lauren Edelman, most recently the brand's chief marketing officer, has assumed the top slot, succeeding Katia Beauchamp.

As Birchbox's profile has grown, so has its co-founder's. But Katia Beauchamp's roots veer far from the sparkly beauty industry scene. Fortune cajoled this year's top 40 into sharing facts about ...