v3.25.2
Document and Entity Information Document
Jun. 18, 2025
Cover [Abstract]  
Document Type 8-K
Document Period End Date Jun. 18, 2025
Entity Registrant Name Allogene Therapeutics, Inc.
Entity Central Index Key 0001737287
Amendment Flag false
Entity Incorporation, State or Country Code DE
Entity File Number 001-38693
Entity Tax Identification Number 82-3562771
Entity Address, Address Line One 210 East Grand Avenue
Entity Address, City or Town South San Francisco
Entity Address, State or Province CA
Entity Address, Postal Zip Code 94080
City Area Code 650
Local Phone Number 457-2700
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $0.001 par value per share
Trading Symbol ALLO
Security Exchange Name NASDAQ
Entity Emerging Growth Company false