Exhibit A

JOINT FILING AGREEMENT

The undersigned agree that this Schedule 13G Amendment No. 4 dated August 14, 2025 relating to the Common Stock, $0.0001 par value, of IMMUNIC, INC. shall be filed on behalf of the undersigned.

 

AVIDITY PARTNERS MANAGEMENT LP

 By: Avidity Partners Management (GP) LLC, its general partner

 

By: /s/ Michael Gregory

  Name: Michael Gregory
  Title:   Managing Member

 

 

 

AVIDITY PARTNERS MANAGEMENT (GP) LLC

 

By: /s/ Michael Gregory

  Name: Michael Gregory
  Title:   Managing Member

 

 

 

AVIDITY CAPITAL PARTNERS FUND (GP) LP

 By: Avidity Capital Partners (GP) LLC, its general partner

 

By: /s/ Michael Gregory

  Name: Michael Gregory
  Title:   Managing Member

 

 

 

AVIDITY CAPITAL PARTNERS (GP) LLC

 

By: /s/ Michael Gregory

  Name: Michael Gregory
  Title:   Managing Member

 

 

 

AVIDITY PRIVATE MASTER FUND I LP

 By: Avidity Capital Partners Fund (GP) LP, its general partner

By: Avidity Capital Partners (GP) LLC, its general partner

 

By: /s/ Michael Gregory

  Name: Michael Gregory
  Title:   Managing Member

 

 

 

MICHAEL GREGORY

 

By: /s/ Michael Gregory