X0306 4/A 2019-02-01 2019-02-04 0 0001466301 Clovis Oncology, Inc. CLVS 0001283569 MUEHL DANIEL W C/O CLOVIS ONCOLOGY, INC. 5500 FLATIRON PARKWAY, SUITE 100 BOULDER CO 80301 0 1 0 0 See Remarks Stock Option (right to buy) 25.75 2019-02-01 4 A 0 29994 0.00 A 2029-02-01 Common Stock 29994 29994 D Restricted Stock Units 2019-02-01 4 A 0 89982 0.00 A Common Stock 89982 89982 D The reporting person filed a Form 4 on February 4, 2019 that incorrectly stated (A) the number of shares of Common Stock subject to the granted option and (B) the number of Restricted Stock Units granted. This amendment to the Form 4 is being filed to correct both errors. The option shall vest as to 25% of the shares on February 1, 2020, and the remainder shall vest in substantially equal installments over the 36 months immediately following such date. Each Restricted Stock Unit represents the right to receive one share of Common Stock. The Restricted Stock Units shall vest as to 25% of the units on February 1, 2020, and the remainder shall vest in substantially equal installments over the 12 quarters immediately following such date. Executive Vice President of Finance, Principal Financial Officer and Principal Accounting Officer /s/ Daniel W. Muehl 2019-02-06