X0306 4/A 2017-08-29 2017-08-29 0 0001466301 Clovis Oncology, Inc. CLVS 0001665347 Hooks Corwin Dale C/O CLOVIS ONCOLOGY, INC. 5500 FLATIRON PARKWAY, SUITE 100 BOULDER CO 80301 0 1 0 0 See Remarks Common Stock 2017-08-29 4 F 0 1325 72.14 D 2150 D This Amendment is being filed to correct the sale price and the number of shares sold to satisfy the tax withholding obligations in connection with the vesting and settlement of the Restricted Stock Units reported in the original Form 4. Senior Vice President and Chief Commercial Officer /s/ Corwin Dale Hooks 2017-09-01