XML 16 R1.htm IDEA: XBRL DOCUMENT v3.24.1
Document and Entity Information - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Mar. 22, 2024
Jun. 30, 2023
Document Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2023    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Document Annual Report true    
Document Transition Report false    
Entity Interactive Data Current Yes    
Entity Incorporation, State or Country Code DE    
Entity Registrant Name BIOATLA, INC.    
Entity Central Index Key 0001826892    
Current Fiscal Year End Date --12-31    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
Title of 12(b) Security Common Stock, $0.0001 par value per share    
Trading Symbol BCAB    
Security Exchange Name NASDAQ    
Entity Public Float     $ 91.0
Entity Current Reporting Status Yes    
Entity Shell Company false    
Entity File Number 001-39787    
Entity Tax Identification Number 85-1922320    
Entity Address, Address Line One 11085 Torreyana Road    
Entity Address, City or Town San Diego    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 92121    
City Area Code 858    
Local Phone Number 558-0708    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
ICFR Auditor Attestation Flag false    
Documents Incorporated by Reference

Part III incorporates by reference certain information from the registrant’s definitive proxy statement (the “Proxy Statement”) relating to its 2024 Annual Meeting of Stockholders. The Proxy Statement will be filed with the United States Securities and Exchange Commission within 120 days after the end of the fiscal year to which this report relates.

    
Document Financial Statement Error Correction [Flag] false    
Auditor Name Ernst & Young LLP    
Auditor Location San Diego, CaliforniaMarch    
Auditor Firm ID 42    
Common Stock      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   48,096,717  
Common Class B      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   0