XML 33 R1.htm IDEA: XBRL DOCUMENT v3.20.4
Document and Entity Information - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Mar. 10, 2021
Jun. 30, 2020
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2020    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2020    
Entity Registrant Name Adicet Bio, Inc.    
Entity Central Index Key 0001720580    
Entity File Number 001-38359    
Trading Symbol ACET    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Shell Company false    
Entity Public Float     $ 40.0
Entity Common Stock, Shares Outstanding   31,780,347  
Document Annual Report true    
Document Transition Report false    
Entity Tax Identification Number 81-3305277    
Entity Incorporation, State or Country Code DE    
Security Exchange Name NASDAQ    
Title of 12(b) Security Common Stock, par value $0.0001 per share    
Entity Address, Address Line One 500 Boylston Street    
Entity Address, Address Line Two 13th Floor    
Entity Address, City or Town Boston    
Entity Address, State or Province MA    
City Area Code 857    
Local Phone Number 315-5528    
Entity Address, Postal Zip Code 02116    
Entity Small Business true    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
ICFR Auditor Attestation Flag false    
Documents Incorporated by Reference

Part III of this Annual Report on Form 10-K incorporates by reference certain information from the registrant’s definitive Proxy Statement for its 2021 annual meeting of shareholders, scheduled to be held on April 27, 2021 which the registrant intends to file pursuant to Regulation 14A with the Securities and Exchange Commission not later than 120 days after the registrant’s fiscal year end of December 31, 2020. Except with respect to information specifically incorporated by reference in this Form 10-K, the Proxy Statement is not deemed to be filed as part of this Form 10-K.