X0206 3 2023-02-23 0 0001672619 Enliven Therapeutics, Inc. ELVN 0001829051 5AM Partners VI, LLC 501 2ND STREET, SUITE 350 SAN FRANCISCO CA 94107 0 0 1 0 0001753037 5AM Ventures VI, L.P. 501 2ND STREET, SUITE 350 SAN FRANCISCO CA 94107 0 0 1 0 0001790778 5AM Opportunities I (GP), LLC 501 2ND STREET, SUITE 350 SAN FRANCISCO CA 94107 0 0 1 0 0001753000 5AM Opportunities I, L.P. 501 2ND STREET, SUITE 350 SAN FRANCISCO CA 94107 0 0 1 0 0001664281 PARMAR KUSH C/O 5AM VENTURE MANAGEMENT, LLC 501 2ND STREET, SUITE 350 SAN FRANCISCO CA 94107 0 0 1 0 Common Stock 4838092 I By 5AM Ventures VI, L.P. Common Stock 960383 I By 5AM Opportunities I, L.P. The shares are directly held by 5AM Ventures VI, L.P. ("Ventures VI"). 5AM Partners VI, LLC ("Partners VI") is the sole general partner of Ventures VI. Dr. Kush Parmar and Andrew J. Schwab are the managing members of Partners VI and may be deemed to have shared voting and investment power over the shares beneficially owned by Ventures VI. Each of Partners VI and Dr. Parmar disclaims beneficial ownership of such shares except to the extent of its or his respective pecuniary interest therein. Mr. Schwab is a director of the Issuer and files separate Section 16 reports. The shares are directly held by 5AM Opportunities I, L.P. ("Opportunities"). 5AM Opportunities I (GP), LLC ("Opportunities GP") is the sole general partner of Opportunities. Andrew J. Schwab and Dr. Kush Parmar are the managing members of Opportunities GP and may be deemed to have shared voting and investment power over the shares beneficially owned by Opportunities. Each of Opportunities GP and Dr. Parmar disclaims beneficial ownership of such shares, except to the extent of its or his respective pecuniary interest therein. Mr. Schwab is a director of the Issuer and files separate Section 16 reports. 5AM Partners VI, LLC, By /s/ Kush Parmar, Managing Member 2023-03-06 5AM Ventures VI, L.P., By: 5AM Partners VI, LLC, its General Partner, By /s/ Kush Parmar, Managing Member 2023-03-06 5AM Opportunities I (GP), LLC, By /s/ Kush Parmar, Managing Member 2023-03-06 5AM Opportunities I, L.P., By: 5AM Opportunities I (GP), LLC, its General Partner, By /s/ Kush Parmar, Managing Member 2023-03-06 /s/ Kush Parmar 2023-03-06