X0306 4 2019-12-17 0 0001744659 Akero Therapeutics, Inc. AKRO 0001708269 Atlas Venture Fund XI, L.P. 400 TECHNOLOGY SQUARE 10TH FLOOR CAMBRIDGE MA 02139 0 0 1 0 0001759241 Atlas Venture Opportunity Fund I, L.P. 400 TECHNOLOGY SQUARE 10TH FLOOR CAMBRIDGE MA 02139 0 0 1 0 Common Stock 2019-12-17 4 J 0 520464 0.00 D 2949295 I See footnote Common Stock 2019-12-17 4 J 0 50510 0.00 D 454589 I See footnote Represents a pro rata distribution, and not a purchase or sale of securities, by Atlas Venture Fund XI, L.P. ("AVF XI") to its general partner and limited partners without additional consideration, pursuant to the AVF XI's 10b5-1 plan dated July 26, 2019. These shares are owned directly by AVF XI. Atlas Venture Associates XI, L.P., ("AVA XI LP") is the general partner of AVF XI. Atlas Venture Associates XI, LLC ("AVA XI LLC") is the general partner of AVF XI LP. Each of AVA XI LP and AVA XI LLC disclaims Section 16 beneficial ownership of the securities held by AVF XI, except to the extent of its pecuniary interest therein, if any. Represents a pro rata distribution, and not a purchase or sale of securities, by Atlas Venture Opportunity Fund I, L.P. ("AVO I") to its general partner and limited partners without additional consideration, pursuant to the AVO I's 10b5-1 plan dated July 26, 2019. These shares are owned directly by AVO I. Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVO I. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. Each of AVAO LP and AVAO LLC disclaims Section 16 beneficial ownership of the securities held by AVO I, except to the extent of its pecuniary interest therein, if any. Atlas Venture Fund XI, L.P., By: Atlas Venture Associates XI, L.P., its general partner, By: Atlas Venture Associates XI, LLC, its general partner, By: Ommer Chohan, Chief Financial Officer 2019-12-19 Atlas Venture Opportunity Fund I, L.P., By: Atlas Venture Associates Opportunity I, L.P., its general partner, By: Atlas Venture Associates Opportunity I, LLC, its general partner, By: Ommer Chohan, Chief Financial Officer 2019-12-19