v3.25.1
Document and Entity Information
Jun. 12, 2025
Cover [Abstract]  
Security Exchange Name NASDAQ
Amendment Flag false
Entity Central Index Key 0001746466
Document Type 8-K
Document Period End Date Jun. 12, 2025
Entity Registrant Name Equillium, Inc.
Entity Incorporation State Country Code DE
Entity File Number 001-38692
Entity Tax Identification Number 82-1554746
Entity Address, Address Line One 2223 Avenida de la Playa
Entity Address, Address Line Two Suite 105
Entity Address, City or Town La Jolla
Entity Address, State or Province CA
Entity Address, Postal Zip Code 92037
City Area Code (858)
Local Phone Number 240-1200
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 per share
Trading Symbol EQ
Entity Emerging Growth Company false