Quarterly report [Sections 13 or 15(d)]

Lease Agreements - Leased Facilities (Details)

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Lease Agreements - Leased Facilities (Details) - USD ($)
$ in Thousands
3 Months Ended
Sep. 17, 2025
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Apr. 03, 2024
Nov. 10, 2023
Leases            
Operating lease right-of-use assets   $ 239   $ 256    
Operating lease liabilities   21,894   $ 22,600    
Sublease income   546 $ 103      
Leased facilities, Emeryville, California, new lease - different location than previous lease            
Leases            
Operating lease right-of-use assets           $ 400
Operating lease liabilities           $ 400
Lease term           65 months
Leased facilities, Kinnate lease with lease expiration of June 30, 2026            
Leases            
Operating lease right-of-use assets         $ 0  
Operating lease liabilities         $ 800  
Subleased facilities, Kinnate Sublease with lease expiration of June 30, 2026            
Leases            
Sublease income   $ 100 $ 100      
Leased facilities, HilleVax - Boston Lease with lease expiration of December 31, 2032            
Leases            
Operating lease right-of-use assets $ 0          
Operating lease liabilities $ 22,400          
Existence of option to extend true          
Lease term 10 years          
Period of lease extension 5 years          
Subleased facilities, HilleVax Sublease            
Leases            
Sublease expiry term   3 years 2 months        
Sublease income   $ 300        
Leased facilities, HilleVax - Swiss Lease with lease expiration of September 30, 2026.            
Leases            
Operating lease right-of-use assets $ 0          
Operating lease liabilities $ 100