Flex bumps up IPO, raises $86.4M

Flex Pharma Inc. (NASDAQ:FLKS) raised $86.4 million in an upsized IPO on NASDAQ through the sale of 5.4 million shares at $16. The IPO price values Flex at $284.9 million. Last week, the neurology company proposed to sell 4.6 million shares at $12-$14.

Flex filed in December to raise up to $60 million in the offering. Jefferies; Piper Jaffray; JMP Securities; Cantor Fitzgerald; and Roth Capital Partners are underwriters. ...