Inogen Files For IPO

Goleta-based medical equipment manufacturer Inogen filed for an IPO over the weekend, saying that it plans to list on the NASDAQ Global Market under the symbol INGN. The developer of portable oxygen concentrators -- used as an alternative to bulky, oxygen canisters for those with chronic respiratory conditions like COPD -- said it plans to raised up to $86.25M in its public debut. The company's IPO is being underwritten by J.P. Morgan, Leerink Swann, William Blair, and Stifel. Inogen is venture backed by Novo A/S, Versant Ventures, Arboretum Ventures, Avalon Ventures, AMV Partners, and others.