Inogen narrowed the price range for the initial public offering it registered late last year, saying it expects to price the IPO at $16 to $18 per share.
That would make the 4.4-million-share offering worth $70.6 million to $79.4 million; if the shares sell at the midpoint, Inogen would raise about $75.0 million.
The Goleta, Calif.-based company makes portable oxygen generators for patients with chronic respiratory conditions. At the midpoint of the proposed IPO, its market capitalization would reach about $342 million.
Inogen hopes to trade on the NASDAQ exchange under the INGN symbol, according to a regulatory filing.
When it initially revealed the proposed IPO in December 2013, Inogen said it pared its losses for the 9 months ended Sept. 30. by more than 48%, to -$1.9 million, on sales growth of 60.3% to $55.7 million.