Bain Capital-backed Heartflow set for Nasdaq debut after upsized $317 million IPO

** Bain Capital-backed medical technology firm Heartflow HTFL.O set to begin trading on the Nasdaq under ticker symbol "HTFL" on Friday

** HTFL late Thursday sold 16.7 million shares at $19 apiece for gross proceeds of $316.7 million in an upsized IPO

** Mountain View, California-based HTFL upsized its offering and raised the proposed range earlier this week reflecting strong demand

** HTFL marks the third sizable medtech listing in New York in less than a month

** Founded in 2007 as Cardiovascular Simulation, Heartflow's AI-enabled products help physicians to diagnose and treat heart disease

** J.P. Morgan, Morgan Stanley and Piper Sandler were the lead underwriters for the offering