Exhibit B.4

 

JOINT FILING AGREEMENT

 

In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including additional amendments thereto) with respect to the shares of Class A Common Stock, $0.01 par value, of Sphere Entertainment Co. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.

 

Date: December 31, 2024

 

  *
  Charles F. Dolan
   
  /s/ James L. Dolan
  James L. Dolan
   
  /s/ Thomas C. Dolan
  Thomas C. Dolan
   
  *
  Kathleen M. Dolan
   
  *
  Marianne Dolan Weber
   
  *
  Deborah A. Dolan-Sweeney
   
  *
  Corby Dolan Leinauer
   
  *
  Mary S. Dolan
   
  *
  Paul J. Dolan
   
  Charles F. Dolan 2009 REVOCABLE TRUST
   
  /s/ Brian G. Sweeney
  By:  Brian G. Sweeney, Trustee

 

 

 

 

  Charles F. Dolan Children Trust FBO Kathleen M. Dolan
   
  Charles F. Dolan Children Trust FBO James L. Dolan
   
  *
  By: Kathleen M. Dolan, Trustee
   
  *
  By:  Paul J. Dolan, Trustee
   
  Charles F. Dolan Children Trust FBO Marianne Dolan Weber
   
  Charles F. Dolan Children Trust FBO Thomas C. Dolan
   
  *
  By:  Kathleen M. Dolan, Trustee
   
  *
  By:  Matthew J. Dolan, Trustee
   
  Charles F. Dolan Children Trust FBO Deborah Dolan-Sweeney
   
  *
  By:  Kathleen M. Dolan, Trustee
   
  *
  By:  Mary S. Dolan, Trustee
   
  CHARLES F. DoLAN 2009 Family Trust FBO Kathleen M. Dolan
   
  CHARLES F. DoLAN 2009 Family Trust FBO Deborah A. Dolan-Sweeney
   
  CHARLES F. DoLAN 2009 Family Trust FBO Marianne E. Dolan Weber
   
  CHARLES F. DoLAN 2009 Family Trust FBO Thomas C. Dolan
   
  CHARLES F. DoLAN 2009 Family Trust FBO James L. Dolan
   
  *
  By:  Mary S. Dolan, Trustee
   
  *
  By:  Corby Dolan Leinauer, Trustee

 

 

 

 

  Ryan Dolan 1989 Trust
   
  Tara Dolan 1989 Trust
   
  *
  By: Kathleen M. Dolan, Trustee

 

*By: /s/ Brian G. Sweeney  
  Brian G. Sweeney  
  as Attorney-in-Fact  

 

 

 

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