X0306 4 2016-07-20 0 0001512762 Coherus BioSciences, Inc. CHRS 0001622139 Watler Peter K. C/O COHERUS BIOSCIENCES, INC. 333 TWIN DOLPHIN DRIVE, SUITE 600 REDWOOD CITY CA 94065 0 1 0 0 Chief Technical Officer Common Stock, $0.0001 par value 2016-07-20 4 M 0 50000 2.0838 A 50000 D Common Stock, $0.0001 par value 2016-07-20 4 S 0 50000 25.0242 D 0 D Common Stock, $0.0001 par value 2016-07-20 4 M 0 23741 1.417 A 23741 I By Wife Common Stock, $0.0001 par value 2016-07-20 4 S 0 23741 25.00 D 0 I By Wife Stock Option (right to buy) 2.0838 2016-07-20 4 M 0 50000 0.00 D 2022-12-13 Common Stock 50000 92494 D Stock Option (right to buy) 1.417 2016-07-20 4 M 0 23741 0.00 D 2023-11-21 Common Stock 23741 16247 I By Wife The sale reported in the Form 4 was effected pursuant to a Rule 10b5 1 trading plan adopted by the Reporting Person. The transaction was executed in multiple trades in prices ranging from $25.00 to $25.10, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a stockholder of the Issuer, information regarding the number of shares and prices at which the transaction was effected. The sale reported in the Form 4 was effected pursuant to a Rule 10b5 1 trading plan adopted by the Reporting Person's wife. All shares underlying this option are vested and exercisable as of the date hereof. A portion of the shares underlying this option are vested and exercisable as of the date hereof. The original vesting schedule is as follows: The underlying shares subject to the option vest and become exercisable in successive, equal monthly installments over four years measured from July 30, 2013, subject to Reporting Person's continued service relationship with the Issuer on each such vesting date. /s/ Jean Frederic Viret, as Attorney-in-Fact for Peter K. Watler 2016-07-22