13G Filing: Perceptive Advisors and Sierra Oncology Inc. (SRRA)

Page 7 of 8 – SEC Filing


SIGNATURE

After reasonable inquiry and to the best of its knowledge and belief, each of the undersigned certifies that the information set forth in this
statement is true, complete and correct.

Date:    November 27, 2017

PERCEPTIVE ADVISORS LLC

By:

/s/ Joseph Edelman

Name: Joseph Edelman
Title: Managing Member

/s/ Joseph Edelman

JOSEPH EDELMAN

PERCEPTIVE LIFE SCIENCES MASTER FUND, LTD.

By: Perceptive Advisors LLC
By:

/s/ Joseph Edelman

Name: Joseph Edelman
Title: Managing Member

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