Document and Entity Information
Document and Entity Information | Jul. 19, 2022 |
Cover [Abstract] | |
Amendment Flag | false |
Entity Central Index Key | 0001656634 |
Document Type | 8-K |
Document Period End Date | Jul. 19, 2022 |
Entity Registrant Name | Gritstone bio, Inc. |
Entity Incorporation State Country Code | DE |
Entity File Number | 001-38663 |
Entity Tax Identification Number | 47-4859534 |
Entity Address, Address Line One | 5959 Horton Street |
Entity Address, Address Line Two | Suite 300 |
Entity Address, City or Town | Emeryville |
Entity Address, State or Province | CA |
Entity Address, Postal Zip Code | 94608 |
City Area Code | (510) |
Local Phone Number | 871-6100 |
Written Communications | false |
Soliciting Material | false |
Pre Commencement Tender Offer | false |
Pre Commencement Issuer Tender Offer | false |
Security 12b Title | Common Stock, par value $0.0001 |
Trading Symbol | GRTS |
Security Exchange Name | NASDAQ |
Entity Emerging Growth Company | true |
Entity Ex Transition Period | true |