Dicerna Pharmaceuticals, Inc. Cambridge, MA 02140 December 13, 2017 The holders of Redeemable Convertible Preferred Stock listed in Schedule 1 hereto (collectively, the “Investors”) Re: Redeemable Convertible Preferred StockRegistration Rights Agreement • December 14th, 2017 • Dicerna Pharmaceuticals Inc • Pharmaceutical preparations • New York
Contract Type FiledDecember 14th, 2017 Company Industry JurisdictionThis letter agreement is entered into by and between the Dicerna Pharmaceuticals, Inc., a Delaware corporation (the “Company”), and the Investors and is effective as of the date first written above.