Current report filing

Document and Entity Information

Document and Entity Information
Aug. 18, 2021
Cover [Abstract]  
Amendment Flag false
Entity Central Index Key 0001759138
Document Type 8-K
Document Period End Date Aug. 18, 2021
Entity Registrant Name CABALETTA BIO, INC.
Entity Incorporation State Country Code DE
Entity File Number 001-39103
Entity Tax Identification Number 82-1685768
Entity Address, Address Line One 2929 Arch Street
Entity Address, Address Line Two Suite 600
Entity Address, City or Town Philadelphia
Entity Address, State or Province PA
Entity Address, Postal Zip Code 19104
City Area Code (267)
Local Phone Number 759-3100
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, par value $0.00001 per share
Trading Symbol CABA
Security Exchange Name NASDAQ
Entity Emerging Growth Company true
Entity Ex Transition Period false