X0306 4 2021-06-29 0 0001815776 Graphite Bio, Inc. GRPH 0001687880 Versant Venture Capital VI, L.P. ONE SANSOME STREET, SUITE 3630 SAN FRANCISCO CA 94104 0 0 1 0 0001777654 Versant Ventures VI GP, L.P. ONE SANSOME STREET, SUITE 3630 SAN FRANCISCO CA 94104 0 0 1 0 0001777652 Versant Ventures VI GP-GP, LLC ONE SANSOME STREET, SUITE 3630 SAN FRANCISCO CA 94104 0 0 1 0 0001832235 Versant Vantage II, L.P. ONE SANSOME STREET, SUITE 3630 SAN FRANCISCO CA 94104 0 0 1 0 0001839790 Versant Vantage II GP, L.P. ONE SANSOME STREET, SUITE 3630 SAN FRANCISCO CA 94104 0 0 1 0 0001839789 Versant Vantage II GP-GP, LLC ONE SANSOME STREET, SUITE 3630 SAN FRANCISCO CA 94104 0 0 1 0 Common Stock 2021-06-29 4 C 0 12343727 A 14708398 D Common Stock 2021-06-29 4 C 0 1527719 A 1527719 I See footnote Common Stock 2021-06-29 4 P 0 180000 17.00 A 1707719 I See footnote Series A Preferred Stock 2021-06-29 4 C 0 30019945 D Common Stock 12343727 0 D Series B Preferred Stock 2021-06-29 4 C 0 3715415 D Common Stock 1527719 0 I See footnote These shares of the Series A Preferred Stock were convertible at any time at the holder's election and automatically converted on a 2.432-for-one basis into shares of the Issuer's common stock immediately upon the closing of the Issuer's initial public offering ("IPO") without payment of additional consideration. The Series A Preferred Stock had no expiration date. These shares are held by Versant Venture Capital VI, L.P. ("VVC VI"). Versant Ventures VI GP-GP, LLC ("VV VI GP") is the sole general partner of Versant Ventures VI GP, L.P. ("VV VI") and VV VI is the sole general partner of VVC VI. Jerel C. Davis, a member of the Issuer's board of directors, is a managing member of VV VI GP and may be deemed to share voting and dispositive power over the shares held by VVC VI. Each of VV VI GP, VV VI and Jerel C. Davis disclaims beneficial ownership of the shares held by VVC VI, except to the extent of their respective pecuniary interests therein. Jerel C. Davis is a director of the Issuer and, accordingly files separate Section 16 reports. These shares of the Series B Preferred Stock were convertible at any time at the holder's election and automatically converted on a 2.432-for-one basis into shares of the Issuer's common stock into shares of the Issuer's common stock immediately upon the closing of the IPO without payment of additional consideration. The Series B Preferred Stock had no expiration date. These shares are held by Versant Vantage II, L.P. ("VV II"). Versant Vantage II GP-GP, LLC ("VV II GP-GP") is the sole general partner of Versant Vantage II GP, L.P. ("VV II GP") and VV II GP is the sole general partner of VV II. Jerel C. Davis, a member of the Issuer's board of directors, is a managing member of VV II GP-GP and may be deemed to share voting and dispositive power over the shares held by VV II. Each of VV II GP-GP, VV II GP and Jerel C. Davis disclaims beneficial ownership of the shares held by VV II, except to the extent of their respective pecuniary interests therein. Jerel C. Davis is a director of the Issuer and, accordingly files separate Section 16 reports. Versant Venture Capital VI, L.P. By: Versant Ventures VI GP, L.P. Its: General Partner By: Versant Ventures VI GP-GP, LLC By: /s/ Robin L. Praeger Its: Managing Director 2021-07-01 Versant Ventures VI GP, L.P., By: Versant Ventures VI GP-GP, LLC By: /s/ Robin L. Praeger Its: Managing Director 2021-07-01 Versant Ventures VI GP-GP, LLC By: /s/ Robin L. Praeger Its: Managing Director 2021-07-01 Versant Vantage II, LP By: Versant Vantage I GP, L.P. Its: General Partner By: Versant Vantage II GP-GP, LLC Its: General Partner By: /s/ Robin L. Praeger Its: Managing Director 2021-07-01 Versant Vantage II GP, L.P., By: Versant Vantage II GP-GP, LLC Its: General Partner By: /s/ Robin L. Praeger Its: Managing Director 2021-07-01 Versant Vantage II GP-GP, LLC, By: /s/ Robin L. Praeger Its: Managing Director 2021-07-01