X0306 4 2018-06-27 false 0001100412 ARRAY BIOPHARMA INC ARRY 0001609284 Saccomano Nicholas A C/O ARRAY BIOPHARMA INC. 3200 WALNUT STREET BOULDER CO 80301 false true false false CSO Common Stock 2018-06-27 4 M false 11453.00 0.00 A 66731.00 D Common Stock 2018-06-27 4 F false 5038.00 18.50 D 61693.00 D Restricted Stock Units 0.00 2018-06-27 4 M false 11453.00 0.00 D 2018-08-18 Common Stock 11453.00 0.00 D Represents shares released on vesting of Restricted Stock Units ("RSUs") granted to the reporting person on August 18, 2014. The grant of these RSUs was previously reported on Table II. Represents shares withheld to satisfy tax withholding obligations of the reporting person. RSUs representing 11,453 shares of common stock vested upon the achievement of a second milestone relating to the return of rights to binimetinib to the Issuer on or prior to the fourth anniversary of the grant date, subject to continued service with the Issuer as of the vesting date. Jason Haddock, attorney-in-fact for Nicholas A. Saccomano 2018-06-29