v3.26.1
Cover
 12 Months Ended
Dec. 31, 2025
shares
Entity Addresses [Line Items]  
Document Type 20-F
Document Registration Statement false
Document Annual Report true
Document Period End Date Dec. 31, 2025
Current Fiscal Year End Date --12-31
Document Transition Report false
Document Shell Company Report false
Entity File Number 001-39084
Entity Registrant Name Innate Pharma SA
Entity Incorporation, State or Country Code I0
Entity Address, Address Line One 117, Avenue de Luminy
Entity Address, Postal Zip Code 13009
Entity Address, City or Town Marseille
Entity Address, Country FR
Title of 12(b) Security Ordinary shares, nominal value €0.05 per share
Trading Symbol IPHA
Security Exchange Name NASDAQ
Entity Common Stock, Shares Outstanding (in shares) 93,719,323
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] true
Document Financial Statement Restatement Recovery Analysis [Flag] false
Document Accounting Standard International Financial Reporting Standards
Entity Shell Company false
Entity Central Index Key 0001598599
Amendment Flag false
Document Fiscal Period Focus FY
Document Fiscal Year Focus 2025
American Depository Shares  
Entity Addresses [Line Items]  
Title of 12(b) Security American Depositary Shares, each representing one ordinary share, nominal value €0.05 per share
Trading Symbol IPHA
Security Exchange Name NASDAQ
Business Contact  
Entity Addresses [Line Items]  
Entity Address, Address Line One 117 Avenue de Luminy
Entity Address, Postal Zip Code 13009
Entity Address, City or Town Marseille
Entity Address, Country FR
Contact Personnel Name Jonathan Dickinson
City Area Code +33
Local Phone Number 4 30 30 30 30