[SCHEDULE 13D/A] Sphere Entertainment Co. SEC Filing

Rhea-AI Filing Summary

Amendment No. 6 to a Schedule 13D reports changes in beneficial ownership of Sphere Entertainment Co. (Class A common stock, ticker SPHR) by members of the Dolan family and related trusts. The Group Members collectively may be deemed to beneficially own 8,787,042 shares of Class A Common Stock, representing approximately 24.6% of the Common Stock, comprised of 1,920,288 shares directly held and 6,866,754 shares issuable upon conversion of Class B stock. The filing discloses that on September 8, 2025 the Charles F. Dolan 2009 Revocable Trust transferred 341,684 shares of Class B Common Stock to certain Group Members in partial repayment of promissory notes at a valuation of $52.2025 per share. As a result, the CFD 2009 Trust ceased to be a Group Member and several new trusts and Patrick F. Dolan were added as Group Members. The filing also updates parties to the Class B Stockholders' Agreement and registration/affiliate agreements and replaces Exhibit A/B information.

Insights

Financial Analyst

TL;DR Transfer of 341,684 Class B shares reallocated Dolan family voting/convertible power; Group retains a substantial 24.6% economic stake.

The amendment documents an intra-family reallocation of Class B Common Stock that changes which trusts and individuals are parties to the Class B Stockholders' Agreement and registration arrangements. The reallocation was used to partially repay promissory notes, with transferred shares valued at $52.2025 per share. The Group Members remain materially invested through 6,866,754 Class B shares convertible share-for-share into Class A stock, producing a combined beneficial position of 8,787,042 shares, or about 24.6% of Common Stock outstanding on the stated basis. This is significant for shareholder voting dynamics given the convertible Class B supply and continued concentration of ownership.

Corporate Governance Expert

TL;DR Family trust transfers altered formal parties to governance agreements but preserved aggregate Dolan influence in the company.

The filing confirms the CFD 2009 Trust ceased to be a party to the Class B Stockholders' Agreement and that multiple trusts and Patrick F. Dolan became parties to that agreement and related Dolan Affiliates Agreements. The change is procedural and contractual in nature, documenting which trusts hold voting/convertible rights and updating exhibits and power of attorney arrangements. From a governance perspective, these amendments formalize internal reallocations and maintain the Group's collective voting and conversion exposure.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 6)

Sphere Entertainment Co.

(Name of Issuer)

Class A Common Stock, par value $.01 per share

(Title of Class of Securities)

55826T102

(CUSIP Number)

Samantha H. Crispin
Baker Botts L.L.P., 30 Rockefeller Plaza
New York, NY, 10112
212-408-2500

Quentin W. Wiest
Baker Botts L.L.P., 30 Rockefeller Plaza
New York, NY, 10112
212-408-2500

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

09/08/2025

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

James L. Dolan

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 1,638,933.00
8	Shared Voting Power 2,028,531.00
9	Sole Dispositive Power 1,638,933.00
10	Shared Dispositive Power 2,028,531.00

11

Aggregate amount beneficially owned by each reporting person

3,667,464.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

11.8 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Excludes 4,622,450 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which James L. Dolan disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Thomas C. Dolan

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 29,355.00
8	Shared Voting Power 1,204,735.00
9	Sole Dispositive Power 29,355.00
10	Shared Dispositive Power 1,204,735.00

11

Aggregate amount beneficially owned by each reporting person

1,234,090.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

4.2 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Excludes 5,688,893 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which Thomas C. Dolan disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Kathleen M. Dolan, individually and as Trustee of certain trusts described herein

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 18,632.00
8	Shared Voting Power 3,674,847.00
9	Sole Dispositive Power 18,632.00
10	Shared Dispositive Power 3,674,847.00

11

Aggregate amount beneficially owned by each reporting person

3,693,479.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

11.5 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Excludes 3,369,687 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which Kathleen M. Dolan disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Marianne Dolan Weber

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 11,606.00
8	Shared Voting Power 1,233,751.00
9	Sole Dispositive Power 11,606.00
10	Shared Dispositive Power 1,233,751.00

11

Aggregate amount beneficially owned by each reporting person

1,245,357.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

4.2 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Excludes 5,713,228 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which Marianne Dolan Weber disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Deborah A. Dolan-Sweeney

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 10,419.00
8	Shared Voting Power 1,139,615.00
9	Sole Dispositive Power 10,419.00
10	Shared Dispositive Power 1,139,615.00

11

Aggregate amount beneficially owned by each reporting person

1,150,034.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

3.9 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Excludes 5,783,885 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which Deborah A. Dolan-Sweeney disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Patrick F. Dolan

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 1,075.00
8	Shared Voting Power 56,947.00
9	Sole Dispositive Power 1,075.00
10	Shared Dispositive Power 56,947.00

11

Aggregate amount beneficially owned by each reporting person

58,022.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

0.2 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Excludes 6,809,807 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which Patrick F. Dolan disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Corby Dolan Leinauer, as Trustee of certain trusts described herein

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 192.00
8	Shared Voting Power 3,681,867.00
9	Sole Dispositive Power 192.00
10	Shared Dispositive Power 3,681,867.00

11

Aggregate amount beneficially owned by each reporting person

3,682,059.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

11.5 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Excludes 3,221,008 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which Corby Dolan Leinauer disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Mary S. Dolan, as Trustee of certain trusts described herein

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 3,453.00
8	Shared Voting Power 4,277,198.00
9	Sole Dispositive Power 3,453.00
10	Shared Dispositive Power 4,277,198.00

11

Aggregate amount beneficially owned by each reporting person

4,280,651.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

13.1 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Excludes 2,652,972 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which Mary S. Dolan disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Paul J. Dolan, as a Trustee of certain trusts described herein

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 46,607.00
8	Shared Voting Power 1,506,024.00
9	Sole Dispositive Power 46,607.00
10	Shared Dispositive Power 1,506,024.00

11

Aggregate amount beneficially owned by each reporting person

1,552,631.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

5.2 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Excludes 5,429,259 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which Paul J. Dolan disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Charles F. Dolan Children Trust FBO Kathleen M. Dolan

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 488,579.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 488,579.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

488,579.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

1.7 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

Excludes 6,402,362 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which the Charles F. Dolan Children Trust FBO Kathleen M. Dolan disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Charles F. Dolan Children Trust FBO Deborah Dolan-Sweeney

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 535,276.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 535,276.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

535,276.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

1.8 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

Excludes 6,355,665 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which the Charles F. Dolan Children Trust FBO Deborah Dolan-Sweeney disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Charles F. Dolan Children Trust FBO Marianne Dolan Weber

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 474,339.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 474,339.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

474,339.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

1.6 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

Excludes 6,416,602 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which the Charles F. Dolan Children Trust FBO Marianne Dolan Weber disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Charles F. Dolan Children Trust FBO Thomas C. Dolan

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 488,579.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 488,579.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

488,579.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

1.7 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

Excludes 6,398,331 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which the Charles F. Dolan Children Trust FBO Thomas C. Dolan disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Charles F. Dolan Children Trust FBO James L. Dolan

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 960,498.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 960,498.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

960,498.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

3.3 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

Excludes 5,950,598 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which the Charles F. Dolan Children Trust FBO James L. Dolan disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Charles F. Dolan 2009 Family Trust FBO James L. Dolan

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 1,053,283.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 1,053,283.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

1,053,283.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

3.6 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

Excludes 5,820,189 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which the Charles F. Dolan 2009 Family Trust FBO James L. Dolan disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Charles F. Dolan 2009 Family Trust FBO Thomas C. Dolan

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 716,156.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 716,156.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

716,156.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

2.5 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

Excludes 6,157,316 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which the Charles F. Dolan 2009 Family Trust FBO Thomas C. Dolan disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Charles F. Dolan 2009 Family Trust FBO Kathleen M. Dolan

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 621,308.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 621,308.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

621,308.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

2.1 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

Excludes 6,252,164 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which the Charles F. Dolan 2009 Family Trust FBO Kathleen M. Dolan disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Charles F. Dolan 2009 Family Trust FBO Marianne E. Dolan Weber

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 653,144.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 653,144.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

653,144.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

2.2 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

Excludes 6,220,328 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which the Charles F. Dolan 2009 Family Trust FBO Marianne E. Dolan Weber disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Charles F. Dolan 2009 Family Trust FBO Deborah A. Dolan-Sweeney

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 578,498.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 578,498.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

578,498.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

2.0 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

Excludes 6,294,974 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which the Charles F. Dolan 2009 Family Trust FBO Deborah A. Dolan-Sweeney disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Charles F. Dolan 2009 Family Trust FBO Patrick F. Dolan

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 56,947.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 56,947.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

56,947.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

0.2 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

Excludes 6,809,807 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which the Charles F. Dolan 2009 Family Trust FBO Deborah A. Dolan-Sweeney disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Ryan Dolan 1989 Trust

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 7,659.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 7,659.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

7,659.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

0.1 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

Excludes 6,859,095 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which the Ryan Dolan 1989 Trust disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Tara Dolan 1989 Trust

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 7,659.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 7,659.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

7,659.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

0.1 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

Excludes 6,859,095 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which the Tara Dolan 1989 Trust disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Charles F. Dolan 2009 Revocable Trust

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

0.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

0.0 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

Excludes 6,866,754 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which the Charles F. Dolan 2009 Revocable Trust disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Marianne E. Dolan Weber 2012 Descendants Trust

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 56,948.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 56,948.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

56,948.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

0.2 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

Excludes 6,809,806 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which the Marianne E. Dolan Weber 2012 Descendants Trust disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

CUSIP No. 55826T102

1

Name of reporting person

Kathleen M. Dolan 2012 Descendants Trust

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 56,947.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 56,947.00
10	Shared Dispositive Power 0.00

11

Aggregate amount beneficially owned by each reporting person

56,947.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

0.2 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

Excludes 6,809,807 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock held by other Reporting Persons hereto as to which the Kathleen M. Dolan 2012 Descendants Trust disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities.

SCHEDULE 13D

Item 1.	Security and Issuer
(a)	Title of Class of Securities: Class A Common Stock, par value $.01 per share
(b)	Name of Issuer: Sphere Entertainment Co.
(c)	Address of Issuer's Principal Executive Offices: TWO PENNSYLVANIA PLAZA, New York, NEW YORK , 10121.
Item 1 Comment: This Amendment No. 6 to Schedule 13D ("Amendment No. 6") is being filed jointly by (i) the individuals (in their individual capacity and/or as trustee or co-trustee of specified trusts) and trusts listed in Item 2(a) below (the "Group Members") who may be deemed to beneficially own all of the shares of Class B Common Stock, par value $0.01 per share (the "Class B Common Stock"), of Sphere Entertainment Co. (the "Issuer"), which shares of Class B Common Stock are convertible share for share at the option of the holder into Class A Common Stock of the Issuer, par value $0.01 per share (the "Class A Common Stock," and together with the Class B Common Stock, the "Common Stock"), and a certain number of shares of Class A Common Stock, in each case as described herein, (ii) certain trustees of such Group Members (the persons referred to in clauses (i) and (ii) collectively, the "Reporting Persons") and (iii) the Charles F. Dolan 2009 Revocable Trust (the "CFD 2009 Trust") to report, among other things, that (a) the CFD 2009 Trust is no longer a Group Member as a result of transferring all of its shares of Class B Common Stock to certain Group Members, (b) the addition of Patrick F. Dolan, the Charles F. Dolan 2009 Family Trust FBO Patrick F. Dolan, the Marianne E. Dolan Weber 2012 Descendants Trust and the Kathleen M. Dolan 2012 Descendants Trust as Group Members (collectively, the "New Group Members") and (c) changes to the Reporting Persons' beneficial ownership of Class A Common Stock as a result of certain matters, in each case, as described in Item 3. The Schedule 13D filed by the original Reporting Persons on April 24, 2020, as amended and supplemented by Amendment No. 1 filed on March 30, 2021, Amendment No. 2 filed on July 14, 2021, Amendment No. 3 filed on March 1, 2024,Amendment No. 4 filed on December 31, 2024 and Amendment No. 5, filed on February 4, 2025 (as amended, the "Schedule 13D"), is hereby amended and supplemented as set forth below in this Amendment No. 6.
Item 2.	Identity and Background
(a)	The disclosure in Item 2(a) is hereby amended and restated to read in its entirety as follows: The names of the Reporting Persons who are Group Members are: James L. Dolan; Thomas C. Dolan; Kathleen M. Dolan, individually and as a Trustee of the Charles F. Dolan Children Trust FBO Kathleen M. Dolan, the Charles F. Dolan Children Trust FBO Deborah Dolan-Sweeney, the Charles F. Dolan Children Trust FBO Marianne Dolan Weber, the Charles F. Dolan Children Trust FBO Thomas C. Dolan and the Charles F. Dolan Children Trust FBO James L. Dolan (hereinafter collectively referred to as the "Dolan Children Trusts" and individually, a "Dolan Children Trust"), and as sole Trustee of the Ryan Dolan 1989 Trust and the Tara Dolan 1989 Trust; Marianne Dolan Weber; Deborah A. Dolan-Sweeney; Patrick F. Dolan; the Dolan Children Trust FBO Kathleen M. Dolan; the Dolan Children Trust FBO Marianne Dolan Weber; the Dolan Children Trust FBO Deborah Dolan-Sweeney; the Dolan Children Trust FBO James L. Dolan; the Dolan Children Trust FBO Thomas C. Dolan; the Charles F. Dolan 2009 Family Trust FBO James L. Dolan; the Charles F. Dolan 2009 Family Trust FBO Thomas C. Dolan; the Charles F. Dolan 2009 Family Trust FBO Kathleen M. Dolan; the Charles F. Dolan 2009 Family Trust FBO Marianne E. Dolan Weber; the Charles F. Dolan 2009 Family Trust FBO Deborah A. Dolan-Sweeney; the Charles F. Dolan 2009 Family Trust FBO Patrick F. Dolan; the Ryan Dolan 1989 Trust; the Tara Dolan 1989 Trust; the Marianne E. Dolan Weber 2012 Descendants Trust and the Kathleen M. Dolan 2012 Descendants Trust. The Reporting Persons also include Corby Dolan Leinauer, as a Trustee of the Charles F. Dolan 2009 Family Trust FBO Thomas C. Dolan, the Charles F. Dolan 2009 Family Trust FBO James L. Dolan, the Charles F. Dolan 2009 Family Trust FBO Marianne E. Dolan Weber, the Charles F. Dolan 2009 Family Trust FBO Kathleen M. Dolan, the Charles F. Dolan 2009 Family Trust FBO Deborah A. Dolan-Sweeney and the Charles F. Dolan 2009 Family Trust FBO Patrick F. Dolan (collectively, the "2009 Family Trusts" and individually, a "2009 Family Trust") and Mary S. Dolan, as a Trustee of the Dolan Children Trust FBO Deborah Dolan-Sweeney, each of the 2009 Family Trusts and the Kathleen M. Dolan 2012 Descendants Trust, and Paul J. Dolan, as a Trustee of the Dolan Children Trusts FBO Kathleen M. Dolan and James L. Dolan.
(b)	The disclosure in Item 2(b) is hereby amended by removing the information related to the CFD 2009 Trust and adding the New Group Members at the end thereof as follows: The business address of Patrick F. Dolan is c/o Dolan Family Office, attention: President, 340 Crossways Park Drive, Woodbury, New York 11797. Charles F. Dolan 2009 Family Trust FBO Patrick F. Dolan is a trust established under the laws of the State of New York for the benefit of Patrick F. Dolan and has an address of c/o Dolan Family Office, attention: President, 340 Crossways Park Drive, Woodbury, New York 11797. Marianne E. Dolan Weber 2012 Descendants Trust is a trust established under the laws of the State of New York for the benefit of the descendants of Marianne Dolan Weber and has an address of c/o MLC Ventures LLC, Attention: Richard Baccari, PO Box 1014, Yorktown Heights, New York 10598. Kathleen M. Dolan 2012 Descendants Trust is a trust established under the laws of the State of Vermont for the benefit of the descendants of Kathleen M. Dolan and has an address of c/o MLC Ventures LLC, Attention: Richard Baccari, PO Box 1014, Yorktown Heights, New York 10598.
(c)	The disclosure in Item 2(c) is hereby amended by adding the following at the end thereof: Patrick F. Dolan is a director of AMC Networks Inc. ("AMC"). AMC's principal business address is 11 Penn Plaza, New York, New York 10001.
(d)	The disclosure in Item 2(d) is hereby amended by adding the following at the end thereof: No New Group Member has, during the last five years, been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors).
(e)	The disclosure in Item 2(e) is hereby amended by adding the following at the end thereof: No New Group Member has, during the last five years, been party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.
(f)	The disclosure in Item 2(f) is hereby amended by adding the following at the end thereof: Patrick F. Dolan is a citizen of the United States. The New Group Members that are trusts are organized in the jurisdiction set forth in Item 2(b).
Item 3.	Source and Amount of Funds or Other Consideration
	The disclosure in Item 3 is hereby amended by adding the following at the end thereof: On September 8, 2025, the CFD 2009 Trust transferred an aggregate of 341,684 shares of Class B Common Stock to certain Group Members, as indicated in the table below, in partial repayment of promissory notes. The transferred shares constituted all of the shares of Common Stock held by the CFD 2009 Trust. For purposes of repayment of the promissory notes, the transferred shares were valued at $52.2025 per share, the mean of the high and low trading price for the Class A Common Stock on September 8, 2025. Number of Shares of Class B Common Stock Transferred Transferee to Transferee James L. Dolan 56,947 Charles F. Dolan 2009 Family Trust FBO Thomas C. Dolan 56,948 Charles F. Dolan 2009 Family Trust FBO Patrick F. Dolan 56,947 Charles F. Dolan 2009 Family Trust FBO Deborah A. Dolan-Sweeney 10,250 Charles F. Dolan Children Trust FBO Deborah Dolan-Sweeney 46,697 Marianne E. Dolan Weber 2012 Descendants Trust 56,948 Kathleen M. Dolan 2012 Descendants Trust 56,947
Item 4.	Purpose of Transaction
	The disclosure in Item 4 is hereby amended by adding the following at the end thereof: The information contained in Item 3 of this Amendment No. 6 is incorporated by reference.
Item 5.	Interest in Securities of the Issuer
(a)	The disclosure in Item 5(a) and (b) is hereby amended and supplemented as follows: (a) and (b) As of September 8, 2025, the Group Members may be deemed to beneficially own an aggregate of 8,787,042 shares of Class A Common Stock as a result of their beneficial ownership of (i) 1,920,288 shares of Class A Common Stock (inclusive of exercisable options, restricted stock units vesting within 60 days of the date hereof and shares held by the Dolan Family Foundation, for which certain Group Members serve as director), and (ii) 6,866,754 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock. This aggregate amount represents approximately 24.6% of the total shares of Common Stock deemed to be currently outstanding. Group Members in the aggregate may be deemed to have the current shared power to vote or direct the vote of and to dispose of or direct the disposition of 6,866,754 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock (representing all outstanding Class B Common Stock) because of the terms of the Class B Stockholders' Agreement (as previously defined in the Schedule 13D). Reporting Persons and individuals who are not Group Members but are trustees of trusts that are Group Members may be deemed to beneficially own an additional 58,744 shares of Class A Common Stock. Each of the Reporting Persons disclaims beneficial ownership of the securities held by the other Reporting Persons, and this report shall not be deemed to be an admission that each such person is the beneficial owner of such securities. The percentages used herein with respect to the ownership of Class A Common Stock are calculated based on 28,503,635 outstanding shares of Class A Common Stock as of September 3, 2025, which is based on (i) 29,132,663 outstanding shares of Class A Common Stock as of July 31, 2025, as reported by the Issuer in its Quarterly Report on Form 10-Q that was filed with the SEC on August 11, 2025, adjusted to reflect (ii) the Issuer's repurchase of 629,028 shares of Class A Common Stock, as reported by the Issuer in a press release dated September 3, 2025. See the responses to Items 7 through 13 of each cover page to this Amendment No. 6, which are incorporated by reference. See Exhibit A for supplemental information regarding the beneficial ownership of Class A Common Stock by the Group Members and the other individuals who are not Group Members but are trustees of trusts that are Group Members. See Exhibit B for additional information regarding the Reporting Persons that are trusts.
(b)	See Item 5(a) above, Exhibit A and Exhibit B.
(c)	Other than as disclosed herein, there were no transactions in the Class A Common Stock effected during the past sixty days by the persons named in response to Item 5(a).
(e)	As further described in Item 3, as of September 8, 2025, the CFD 2009 Trust ceased to be a beneficial owner of Common Stock and a Group Member.
Item 6.	Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer
	The disclosure in the section of Item 6 entitled "THE CLASS B STOCKHOLDERS AGREEMENT" is hereby amended by adding the following sentence after the last paragraph of such subsection: As of September 8, 2025, the CFD 2009 Trust ceased to be a party to the Class B Stockholders' Agreement and the New Group Members became parties to such agreement. The disclosure in the section of Item 6 entitled "REGISTRATION RIGHTS AGREEMENTS" is hereby amended by adding the following sentence after the last paragraph of such subsection: As of September 8, 2025, the Charles F. Dolan 2009 Family Trust FBO Patrick F. Dolan, the Charles F. Dolan Children Trust FBO Deborah Dolan-Sweeney, the Marianne E. Dolan Weber 2012 Descendants Trust and the Kathleen M. Dolan 2012 Descendants Trust each became a party to the Dolan Affiliates Agreement with respect to the shares of Class B Common Stock received from the CFD 2009 Trust, provided that the shares of Class B Common Stock received by the Charles F. Dolan Children Trust FBO Deborah Dolan-Sweeney are subject to the additional restrictions contained in the Dolan Children Trusts Agreement.
Item 7.	Material to be Filed as Exhibits.
	The disclosure in Item 7 is hereby amended by replacing all exhibits in the series of exhibits related to Exhibit A and Exhibit B and adding Exhibit C.2 and Exhibit D in appropriate order as follows: Exhibit A: Supplemental Beneficial Ownership Information Exhibit B: Amended and Restated Trust and Beneficiary List Exhibit C.2: Power of Attorney for each of Patrick F. Dolan, the Charles F. Dolan 2009 Family Trust FBO Patrick F. Dolan, the Marianne E. Dolan Weber 2012 Descendants Trust and the Kathleen M. Dolan 2012 Descendants Trust Exhibit D: Joint Filing Agreement, dated September 10, 2025.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

James L. Dolan

Signature:	/s/ James L. Dolan
Name/Title:	James L. Dolan
Date:	09/10/2025

Thomas C. Dolan

Signature:	/s/ Thomas C. Dolan
Name/Title:	Thomas C. Dolan
Date:	09/10/2025

Kathleen M. Dolan, individually and as Trustee of certain trusts described herein

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact
Date:	09/10/2025

Marianne Dolan Weber

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact
Date:	09/10/2025

Deborah A. Dolan-Sweeney

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact
Date:	09/10/2025

Patrick F. Dolan

Signature:	/s/ Dennis H. Haver
Name/Title:	Dennis H. Javer as Attorney-in-Fact
Date:	09/10/2025

Corby Dolan Leinauer, as Trustee of certain trusts described herein

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact
Date:	09/10/2025

Mary S. Dolan, as Trustee of certain trusts described herein

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact
Date:	09/10/2025

Paul J. Dolan, as a Trustee of certain trusts described herein

Signature:	/s/ Paul J. Dolan
Name/Title:	Paul J. Dolan
Date:	09/10/2025

Charles F. Dolan Children Trust FBO Kathleen M. Dolan

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Kathleen M. Dolan, Trustee
Date:	09/10/2025

Signature:	/s/ Paul J. Dolan
Name/Title:	Paul J. Dolan, Trustee
Date:	09/10/2025

Charles F. Dolan Children Trust FBO Deborah Dolan-Sweeney

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Kathleen M. Dolan, Trustee
Date:	09/10/2025

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Mary S. Dolan, Trustee
Date:	09/10/2025

Charles F. Dolan Children Trust FBO Marianne Dolan Weber

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Kathleen M. Dolan, Trustee
Date:	09/10/2025

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Matthew J. Dolan, Trustee
Date:	09/10/2025

Charles F. Dolan Children Trust FBO Thomas C. Dolan

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Kathleen M. Dolan, Trustee
Date:	09/10/2025

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Matthew J. Dolan, Trustee
Date:	09/10/2025

Charles F. Dolan Children Trust FBO James L. Dolan

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Kathleen M. Dolan, Trustee
Date:	09/10/2025

Signature:	/s/ Paul J. Dolan
Name/Title:	Paul J. Dolan, Trustee
Date:	09/10/2025

Charles F. Dolan 2009 Family Trust FBO James L. Dolan

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Mary S. Dolan, Trustee
Date:	09/10/2025

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Corby Dolan Leinauer, Trustee
Date:	09/10/2025

Charles F. Dolan 2009 Family Trust FBO Thomas C. Dolan

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Mary S. Dolan, Trustee
Date:	09/10/2025

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Corby Dolan Leinauer, Trustee
Date:	09/10/2025

Charles F. Dolan 2009 Family Trust FBO Kathleen M. Dolan

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Mary S. Dolan, Trustee
Date:	09/10/2025

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Corby Dolan Leinauer, Trustee
Date:	09/10/2025

Charles F. Dolan 2009 Family Trust FBO Marianne E. Dolan Weber

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Mary S. Dolan, Trustee
Date:	09/10/2025

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Corby Dolan Leinauer, Trustee
Date:	09/10/2025

Charles F. Dolan 2009 Family Trust FBO Deborah A. Dolan-Sweeney

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Mary S. Dolan, Trustee
Date:	09/10/2025

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Corby Dolan Leinauer, Trustee
Date:	09/10/2025

Charles F. Dolan 2009 Family Trust FBO Patrick F. Dolan

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Mary S. Dolan, Trustee
Date:	09/10/2025

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Corby Dolan Leinauer, Trustee
Date:	09/10/2025

Ryan Dolan 1989 Trust

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Kathleen M. Dolan, Trustee
Date:	09/10/2025

Tara Dolan 1989 Trust

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Kathleen M. Dolan, Trustee
Date:	09/10/2025

Charles F. Dolan 2009 Revocable Trust

Signature:	/s/ Paul J. Dolan
Name/Title:	Paul J. Dolan, Trustee
Date:	09/10/2025

Marianne E. Dolan Weber 2012 Descendants Trust

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Richard Baccari, Trustee
Date:	09/10/2025

Kathleen M. Dolan 2012 Descendants Trust

Signature:	/s/ Paul J. Dolan
Name/Title:	Paul J. Dolan, Trustee
Date:	09/10/2025

Signature:	/s/ Brian G. Sweeney
Name/Title:	Brian G. Sweeney as Attorney-in-Fact for Mary S. Dolan, Trustee
Date:	09/10/2025

FAQ

What change did Amendment No. 6 report for SPHR ownership?

The amendment reports reallocation of Class B Common Stock among Dolan family trusts and individuals resulting in aggregate beneficial ownership of 8,787,042 shares (about 24.6%).

How many Class B shares were transferred and why?

An aggregate of 341,684 shares of Class B Common Stock were transferred on September 8, 2025 to certain Group Members in partial repayment of promissory notes.

What valuation was used for the transferred shares?

The transferred shares were valued at $52.2025 per share, the mean of the high and low trading price for Class A Common Stock on September 8, 2025.

Did any trust cease to be a Group Member?

Yes. The Charles F. Dolan 2009 Revocable Trust (CFD 2009 Trust) ceased to be a beneficial owner of Common Stock and is no longer a Group Member as of the transfers.

How was the percentage ownership calculated?

The filing states percentages are based on 28,503,635 outstanding Class A shares as of September 3, 2025, after adjusting reported outstanding shares and a reported repurchase of 629,028 shares.

Were there any other Class A trades in the last 60 days by Reporting Persons?

No. The filing states there were no transactions in Class A Common Stock by the listed persons in the past sixty days other than those disclosed.