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GRTS Gritstone Bio

Document and Entity Information

Document and Entity InformationAug. 17, 2021
Cover [Abstract]
Amendment Flagfalse
Entity Central Index Key0001656634
Document Type8-K
Document Period End DateAug. 17,
2021
Entity Registrant NameGritstone bio, Inc.
Entity Incorporation State Country CodeDE
Entity File Number001-38663
Entity Tax Identification Number47-4859534
Entity Address, Address Line One5959 Horton Street
Entity Address, Address Line TwoSuite 300
Entity Address, City or TownEmeryville
Entity Address, State or ProvinceCA
Entity Address, Postal Zip Code94608
City Area Code(510)
Local Phone Number871-6100
Written Communicationsfalse
Soliciting Materialfalse
Pre Commencement Tender Offerfalse
Pre Commencement Issuer Tender Offerfalse
Security 12b TitleCommon Stock, par value $0.0001
Trading SymbolGRTS
Security Exchange NameNASDAQ
Entity Emerging Growth Companytrue
Entity Ex Transition Periodtrue