X0306 4 2020-07-24 0 0001457612 GENOCEA BIOSCIENCES, INC. GNCA 0001237289 SANDELL SCOTT D 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 0 0 1 0 Common Stock 2020-07-24 4 P 0 3151260 2.25 A 10376936 I See Note 2 Warrant to Purchase Common Stock 2.25 2020-07-24 4 P 0 3151260 0.13 A 2020-07-24 2024-07-24 Common Stock 3151260 3151260 I See Note 2 Acquired from the issuer pursuant to a Stock Purchase Agreement dated July 22, 2020, with a closing date of July 24, 2020. The Reporting Person is a manager of NEA 16 GP, LLC, which is the sole general partner of NEA Partners 16, L.P. ("NEA Partners 16"). NEA Partners 16 is the sole general partner of New Enterprise Associates 16, L.P. ("NEA 16"), which is the direct beneficial owner of the shares. The Reporting Person disclaims beneficial ownership within the meaning of Section 16 of the Securities Exchange Act of 1934, as amended, or otherwise of such portion of the shares held by NEA 16 in which the Reporting Person has no pecuniary interest. /s/ Sasha Keough, attorney-in-fact 2020-07-28