v3.25.4
Document and Entity Information
Mar. 06, 2026
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Mar. 06, 2026
Entity File Number 001-43037
Entity Registrant Name AtaiBeckley Inc.
Entity Central Index Key 0002081043
Entity Incorporation, State or Country Code DE
Entity Tax Identification Number 41-3357923
Entity Address, Address Line One c/o atai Life Sciences US, Inc.
Entity Address, Address Line Two c/o Industrious NYC
Entity Address, Address Line Three 250 West 34th Street
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10119
City Area Code 332
Local Phone Number 282-0507
Title of 12(b) Security Common stock, $0.01 par value per share
Trading Symbol ATAI
Security Exchange Name NASDAQ
Entity Emerging Growth Company true
Entity Ex Transition Period false
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false