X0206 3 2018-09-26 0 0001655759 ARVINAS HOLDING COMPANY, LLC ARVN 0001538676 Canaan IX L.P. 285 RIVERSIDE AVENUE, SUITE 250 WESTPORT CT 06880 0 0 1 0 0001654586 Canaan Partners IX LLC 285 RIVERSIDE AVENUE, SUITE 250 WESTPORT CT 06880 0 0 1 0 Series A Preferred Stock Common Stock 2936426 D Series B Preferred Stock Common Stock 1373180 D Series C Preferred Stock Common Stock 679948 D The Series A Preferred Stock is convertible into Common Stock on a 3.25-for-one basis into the number of shares of Common Stock shown in Column 3 at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date. The Series B Preferred Stock is convertible into Common Stock on a 3.25-for-one basis into the number of shares of Common Stock shown in Column 3 at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date. The Series C Preferred Stock is convertible into Common Stock on a 3.25-for-one basis into the number of shares of Common Stock shown in Column 3 at any time at the holder's election and automatically upon the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date. The shares are held directly by Canaan IX L.P. (the "Canaan Fund"). The sole general partner of the Canaan Fund is Canaan Partners IX LLC ("Canaan IX", and together with the Canaan Fund, the "Canaan Entities"), and may be deemed to have sole voting, investment and dispositive power with respect to the shares held by the Canaan Fund. Canaan IX disclaims Section 16 beneficial ownership of the securities held by the Canaan Fund, except to the extent of its pecuniary interest therein, if any. Exhibit 24 Power of Attorney and Exhibit 99 Joint Filer Information. Canaan IX L.P., By: Canaan Partners IX LLC, its general partner, By: /s/ Nancy Levenson, Attorney-in-Fact 2018-09-26 Canaan Partners IX LLC, By: /s/ Nancy Levenson, Attorney-in-Fact 2018-09-26