Shares of medical technology company Vapotherm Inc. /zigman2/quotes/206318264/composite VAPO -6.23% surged 8.5% in their trading debut Wednesday, after pricing at the low end of their range. The company, which specializes in treatments for respiratory illnesses, sold 4 million shares priced at $14 each to raise $56 million. The stock started trading on the New York Stock Exchange Wednesday, under the ticker symbol "VAPO". BofA Merrill Lynch and William Blair were bookrunners on the deal with Canaccord and BTIG acting as co-managers. Proceeds of the deal will be used to fund marketing, research and development and for the catchall general corporate purposes.