v3.22.2.2
Document and Entity Information
Dec. 09, 2022
Cover [Abstract]  
Amendment Flag false
Entity Central Index Key 0001786205
Document Type 8-K
Document Period End Date Dec. 09, 2022
Entity Registrant Name Arcellx, Inc.
Entity Incorporation State Country Code DE
Entity File Number 001-41259
Entity Tax Identification Number 47-2855917
Entity Address, Address Line One 25 West Watkins Mill Road
Entity Address, Address Line Two Suite A
Entity Address, City or Town Gaithersburg
Entity Address, State or Province MD
Entity Address, Postal Zip Code 20878
City Area Code (240)
Local Phone Number 327-0603
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, $0.001 par value per share
Trading Symbol ACLX
Security Exchange Name NASDAQ
Entity Emerging Growth Company true
Entity Ex Transition Period false