X0306 4 2019-06-20 0 0001399529 Dicerna Pharmaceuticals Inc DRNA 0001190418 HOFFMAN STEPHEN J C/O DICERNA PHARMACEUTICS, INC. 87 CAMBRIDGEPARK DRIVE CAMBRIDGE MA 02140 1 0 0 0 Director Stock Option (right to buy) 15.44 2019-06-20 4 A 0 25000 0.00 A 2029-06-20 Common Stock 25000 25000 D This option vests monthly over 12 months from June 20, 2019 ("Grant Date") in substantially equal monthly installments, provided that the option will vest in full on the Issuer's next regularly scheduled annual meeting of stockholders that occurs following the Grant Date, subject to the Reporting Person's continued service to the Issuer through each such date or, if earlier, such annual meeting. Exhibit 24 - Power of Attorney /s/ John B. Green, attorney-in-fact 2019-06-21