Exhibit A

JOINT FILING AGREEMENT

The undersigned agree that this Schedule 13G Amendment No. 2 dated November 12, 2025 relating to the Common Stock, par value $0.001 per share, of SCYNEXIS, Inc. shall be filed on behalf of the undersigned.

 

KINGDON CAPITAL MANAGEMENT, L.L.C.

 

By: /s/ Richard Weinstein

  Name: Richard Weinstein
  Title:   Chief Operating Officer & General Counsel

 

 

 

M. KINGDON OFFSHORE MASTER FUND L.P.

By: Kingdon GP, LLC, its general partner

 

By: /s/ Mark Kingdon

  Name: Mark Kingdon
  Title:   Managing Member

 

 

 

KINGDON GP, LLC

 

By: /s/ Mark Kingdon

  Name: Mark Kingdon
  Title:   Managing Member

 

 

 

MARK KINGDON

 

By: /s/ Mark Kingdon