X0306 4 2019-03-01 0 0001419600 Flexion Therapeutics Inc FLXN 0001598099 Bodick Neil C/O FLEXION THERAPEUTICS, INC. 10 MALL ROAD, SUITE 301 BURLINGTON MA 01803 0 1 0 0 Chief Scientific Officer Common Stock 2019-03-01 4 A 0 36000 0.00 A 100782 D Common Stock 1000 I By Spouse Common Stock 388683 I By Versant Development Fund III, LLC Stock option (right to buy) 14.75 2019-03-01 4 A 0 18000 0.00 A 2029-02-28 Common Stock 18000 18000 D The shares are held by Versant Development Fund III, LLC. The Reporting Person is a manager and minority member of Versant Development Fund III, LLC. The Reporting Person disclaims any beneficial ownership of the shares held by Versant Development Fund III, LLC except to the extent of his pecuniary interest in these shares. Twenty-five percent (25%) of the shares subject to the option shall vest one year after January 1, 2019 (the "Vesting Commencement Date") and thereafter one-forty-eighth (1/48th) of the total shares shall vest each month following the one year anniversary of the Vesting Commencement Date, so that all of the shares shall be vested four (4) years after the Vesting Commencement Date. /s/ Mark S. Levine, Attorney-in-Fact 2019-03-05