Inogen, which sells portable oxygen concentrators for patients suffering from chronic respiratory conditions, filed on Friday with the SEC to raise up to $86 million in an initial public offering. The Goleta, CA-based company, which was founded in 2001 and booked $70 million in sales for the 12 months ended September 30, 2013, plans to list on the NASDAQ under the symbol INGN. Inogen initially filed confidentially on October 16, 2013. J.P. Morgan is the sole bookrunner on the deal. No pricing terms were disclosed.
