Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the reference to our firm under the caption “Experts” in the Registration Statement (FormS-3) and related Prospectus of Gritstone Oncology, Inc. for the registration of $250,000,000 of common stock, preferred stock, debt securities, warrants, and units and Prospectus Supplement of Gritstone Oncology, Inc. for the registration of $75,000,000 of its common stock and to the incorporation by reference therein of our report dated March 28, 2019, with respect to the financial statements of Gritstone Oncology, Inc., included in its Annual Report (Form10-K) for the year ended December 31, 2018, filed with the Securities and Exchange Commission.
/s/ Ernst & Young LLP |
Redwood City, California |
October 15, 2019 |