v3.26.1
Document and Entity Information
 12 Months Ended
Dec. 31, 2025
shares
Document and Entity Information  
Document Type 20-F
Document Registration Statement false
Document Annual Report true
Document Period End Date Dec. 31, 2025
Document Transition Report false
Document Shell Company Report false
Securities Act File Number 001-39374
Entity Registrant Name Inventiva S.A.
Entity Incorporation, State or Country Code I0
Entity Address, Address Line One 50 rue de Dijon
Entity Address, Postal Zip Code 21121
Entity Address, City or Town Daix
Entity Address, Country FR
Entity Common Stock, Shares Outstanding 193,236,978
Entity Well-known Seasoned Issuer No
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Accelerated Filer
Entity Emerging Growth Company false
ICFR Auditor Attestation Flag true
Document Financial Statement Error Correction [Flag] false
Document Accounting Standard International Financial Reporting Standards
Entity Shell Company false
Amendment Flag false
Current Fiscal Year End Date --12-31
Document Fiscal Year Focus 2025
Document Fiscal Period Focus FY
Entity Central Index Key 0001756594
Auditor Name KPMG SA
Auditor Firm ID 1253
Auditor Location Paris La Defense, France
American Depositary Shares, each representing one ordinary share  
Document and Entity Information  
Title of 12(b) Security American Depositary Shares, each representing one ordinary share, nominal value €0.01 per share
Trading Symbol IVA
Security Exchange Name NASDAQ
Ordinary shares  
Document and Entity Information  
Title of 12(b) Security Ordinary shares, nominal value €0.01 per share
Security Exchange Name NASDAQ
No Trading Symbol Flag true
Business Contact  
Document and Entity Information  
Entity Address, Address Line One 50 rue de Dijon
Entity Address, Postal Zip Code 21121
Entity Address, City or Town Daix
Entity Address, Country FR
Contact Personnel Name Andrew Obenshain
Country Region 33
City Area Code 3 80
Local Phone Number 44 75 00