Investors Grab FLXN Even Cheaper Than Its Secondary Stock Offering By: Market News Video January 16, 2018 at 15:21 PM EST Looking back to 97 days ago, Flexion Therapeutics, Inc. (FLXN) priced a 4,800,000 share secondary stock offering at $25.50 per share.. Read More >> Related Stocks: Flexion Therapeutics S&P Biotech SPDR