X0306 4 2019-08-20 0 0001466301 Clovis Oncology, Inc. CLVS 0001266567 ATWOOD BRIAN G C/O CLOVIS ONCOLOGY, INC. 5500 FLATIRON PARKWAY, SUITE 100 BOULDER CO 80301 1 0 0 0 Common Stock 2019-08-20 4 M 0 25862 0.29 A 25862 D Common Stock 25577 I By Atwood-Edminster Trust dated 4/2/2000 Common Stock 101217 I By Versant Venture Capital IV, L.P. Common Stock 638 I By Versant Side Fund IV, L.P. Stock Option (right to buy) 0.29 2019-08-20 4 M 0 25862 0.00 D 2019-08-26 Common Stock 25862 0 D The Reporting Person is is a trustee and a named beneficiary of the Atwood-Edminster Trust dated 4/2/2000. The Reporting Person is a managing member of Versant Ventures IV, LLC. Voting and investment power over the shares held of record by Versant Venture Capital IV, L.P. and Versant Side Fund IV, L.P is held by Versant Ventures IV, LLC, their sole general partner. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and the options held by him. The option was immediately exercisable as to both vested and unvested shares. 25% of the shares subject to the option vested on each of August 26, 2009, August 26, 2010, August 26, 2011 and August 26, 2012. /s/ Brian G. Atwood 2019-08-22