James L. Dolan - 25 Feb 2026 SCHEDULE 13D/A Report for Sphere Entertainment Co. Class A Common Stock, par value $.01 per share (SPHR)

Filing Manager
James L. Dolan
Reporting Manager
Mary S. Dolan, as Trustee of certain trusts described herein
Security
Sphere Entertainment Co. Class A Common Stock, par value $.01 per share
Symbol
SPHR
Shares outstanding
32,928,085 shares
Disclosed Ownership
4,280,651 shares
Ownership
13%
Form type
SCHEDULE 13D/A
Filing time
09 Mar 2026, 20:14:20 UTC
Date of event
25 Feb 2026
Previous filing
10 Sep 2025
SEC
View on sec.gov

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Quoteable Key Fact

"James L. Dolan disclosed 13% ownership in Sphere Entertainment Co. Class A Common Stock, par value $.01 per share (SPHR) on 25 Feb 2026."

Quick Takeaways

  • James L. Dolan filed SCHEDULE 13D/A for Sphere Entertainment Co. Class A Common Stock, par value $.01 per share (SPHR).
  • Disclosed ownership: 13%.
  • Date of event: 25 Feb 2026.

What Changed

  • Previous schedule filing date: 10 Sep 2025.
  • Current filing was accepted on 09 Mar 2026, 20:14.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Source Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (24)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
James L. Dolan 11% 3,479,807 1,451,276 2,028,531 /s/ James L. Dolan James L. Dolan 0000933028
Thomas C. Dolan 4.1% 1,234,090 29,355 1,204,735 /s/ Thomas C. Dolan Thomas C. Dolan 0000933029
Kathleen M. Dolan, individually and as Trustee of certain trusts described herein 12% 3,693,479 18,632 3,674,847 /s/ Brian G. Sweeney Brian G. Sweeney as Attorney-in-Fact 0000933026
Marianne Dolan Weber 4.2% 1,245,357 11,606 1,233,751 /s/ Brian G. Sweeney Brian G. Sweeney as Attorney-in-Fact 0001098901
Deborah A. Dolan-Sweeney 4.1% 1,224,555 10,419 1,214,136 /s/ Brian G. Sweeney Brian G. Sweeney as Attorney-in-Fact 0000933025
Patrick F. Dolan 0.2% 58,022 1,075 56,947 /s/ Dennis H. Haver Dennis H. Javer as Attorney-in-Fact 0000932963
Corby Dolan Leinauer, as Trustee of certain trusts described herein 11% 3,682,059 192 3,681,867 /s/ Brian G. Sweeney Brian G. Sweeney as Attorney-in-Fact 0001788337
Mary S. Dolan, as Trustee of certain trusts described herein 13% 4,280,651 3,453 4,277,198 /s/ Brian G. Sweeney Brian G. Sweeney as Attorney-in-Fact 0000933022
Paul J. Dolan, as a Trustee of certain trusts described herein 5.2% 1,552,631 46,607 1,506,024 /s/ Paul J. Dolan Paul J. Dolan 0001025983
Charles F. Dolan Children Trust FBO Kathleen M. Dolan 1.7% 488,579 488,579 0 /s/ Brian G. Sweeney Brian G. Sweeney as Attorney-in-Fact for Kathleen M. Dolan, Trustee 0001505843
Charles F. Dolan Children Trust FBO Deborah Dolan-Sweeney 1.8% 535,276 535,276 0 /s/ Brian G. Sweeney Brian G. Sweeney as Attorney-in-Fact for Kathleen M. Dolan, Trustee 0001505845
Charles F. Dolan Children Trust FBO Marianne Dolan Weber 1.6% 474,339 474,339 0 /s/ Brian G. Sweeney Brian G. Sweeney as Attorney-in-Fact for Kathleen M. Dolan, Trustee 0001505849
Charles F. Dolan Children Trust FBO Thomas C. Dolan 1.7% 488,579 488,579 0 /s/ Brian G. Sweeney Brian G. Sweeney as Attorney-in-Fact for Kathleen M. Dolan, Trustee 0001505848
Charles F. Dolan Children Trust FBO James L. Dolan 3.3% 960,498 960,498 0 /s/ Brian G. Sweeney Brian G. Sweeney as Attorney-in-Fact for Kathleen M. Dolan, Trustee 0001505850
Charles F. Dolan 2009 Family Trust FBO James L. Dolan 3.5% 1,053,283 1,053,283 0 /s/ Brian G. Sweeney Brian G. Sweeney as Attorney-in-Fact for Mary S. Dolan, Trustee 0001505853
Charles F. Dolan 2009 Family Trust FBO Thomas C. Dolan 2.4% 716,156 716,156 0 /s/ Brian G. Sweeney Brian G. Sweeney as Attorney-in-Fact for Mary S. Dolan, Trustee 0001505856
Charles F. Dolan 2009 Family Trust FBO Kathleen M. Dolan 2.1% 621,308 621,308 0 /s/ Brian G. Sweeney Brian G. Sweeney as Attorney-in-Fact for Mary S. Dolan, Trustee 0001505858
Charles F. Dolan 2009 Family Trust FBO Marianne E. Dolan Weber 2.2% 653,144 653,144 0 /s/ Brian G. Sweeney Brian G. Sweeney as Attorney-in-Fact for Mary S. Dolan, Trustee 0001505857
Charles F. Dolan 2009 Family Trust FBO Deborah A. Dolan-Sweeney 2% 578,498 578,498 0 /s/ Brian G. Sweeney Brian G. Sweeney as Attorney-in-Fact for Mary S. Dolan, Trustee 0001505854
Charles F. Dolan 2009 Family Trust FBO Patrick F. Dolan 0.2% 56,947 56,947 0 /s/ Brian G. Sweeney Brian G. Sweeney as Attorney-in-Fact for Mary S. Dolan, Trustee 0001505855
Ryan Dolan 1989 Trust 0.1% 7,659 7,659 0 /s/ Brian G. Sweeney Brian G. Sweeney as Attorney-in-Fact for Kathleen M. Dolan, Trustee 0001505841
Tara Dolan 1989 Trust 0.1% 7,659 7,659 0 /s/ Brian G. Sweeney Brian G. Sweeney as Attorney-in-Fact for Kathleen M. Dolan, Trustee 0001505842
Marianne E. Dolan Weber 2012 Descendants Trust 0.2% 56,948 56,948 0 /s/ Brian G. Sweeney Brian G. Sweeney as Attorney-in-Fact for Richard Baccari, Trustee 0001564760
Kathleen M. Dolan 2012 Descendants Trust 0.2% 56,947 56,947 0 /s/ Paul J. Dolan Paul J. Dolan, Trustee 0001564761

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