SCHEDULE 13D/A 0001104659-26-019261 0000933028 XXXXXXXX LIVE 9 Class A Common Stock, par value $.01 per share 02/25/2026 false 0001636519 55825T103 Madison Square Garden Sports Corp.

TWO PENNSYLVANIA PLAZA NEW YORK NY 10121

Samantha H. Crispin 212-408-2500 Baker Botts L.L.P. 30 Rockefeller Plaza New York NY 10112 Sarah J. Dodson 214-953-6585 Baker Botts L.L.P. 30 Rockefeller Plaza New York NY 10112 0000933028 N James L. Dolan a BK OO N X1 241555.00 1468066.00 241555.00 1468066.00 1709621.00 Y 8.1 IN Excludes 3,049,107 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. 0000933026 N Kathleen M. Dolan, individually and as Trustee of certain trusts described herein a OO N X1 12288.00 2377702.00 12288.00 2377702.00 2389990.00 Y 10.9 IN Excludes 2,236,548 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. 0001098901 N Marianne Dolan Weber a OO N X1 8063.00 813817.00 8063.00 813817.00 821880.00 Y 4.0 IN Excludes 3,768,618 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. 0000933025 N Deborah A. Dolan-Sweeney a OO N X1 6872.00 801264.00 6872.00 801264.00 808136.00 Y 4.0 IN Excludes 3,815,223 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. 0000932963 N Patrick F. Dolan a OO N X1 709.00 37565.00 709.00 37565.00 38274.00 Y 0.2 IN Excludes 4,491,952 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. 0001788337 N Corby Dolan Leinauer, as a Trustee of certain trusts described herein OO N X1 314.00 2632351.00 314.00 2632351.00 2632665.00 Y 11.9 IN Excludes 1,921,155 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. 0000933022 N Mary S. Dolan, as a Trustee of certain trusts described herein OO N X1 2274.00 2974517.00 2274.00 2974517.00 2976791.00 Y 13.2 IN Excludes 1,596,828 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. 0001025983 N Paul J. Dolan, as a Trustee of certain trusts described herein OO N X1 30480.00 956854.00 30480.00 956854.00 987334.00 Y 4.8 IN Excludes 3,617,866 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. 0001505843 N Charles F. Dolan Children Trust FBO Kathleen M. Dolan a OO N X1 322281.00 0.00 322281.00 0.00 322281.00 Y 1.6 OO Excludes 4,223,190 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. 0001505845 N Charles F. Dolan Children Trust FBO Deborah Dolan-Sweeney a OO N X1 339281.00 0.00 339281.00 0.00 339281.00 Y 1.7 OO Excludes 4,206,190 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. 0001505849 N Charles F. Dolan Children Trust FBO Marianne Dolan Weber a OO N X1 312888.00 0.00 312888.00 0.00 312888.00 Y 1.6 OO Excludes 4,232,583 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. 0001505848 N Charles F. Dolan Children Trust FBO Thomas C. Dolan a OO N X1 322281.00 0.00 322281.00 0.00 322281.00 Y 1.6 OO Excludes 4,220,531 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. 0001505850 N Charles F. Dolan Children Trust FBO James L. Dolan a BK OO N X1 633573.00 0.00 633573.00 0.00 633573.00 Y 3.1 OO Excludes 3,925,193 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. 0001505853 N Charles F. Dolan 2009 Family Trust FBO James L. Dolan a BK OO N X1 829066.00 0.00 829066.00 0.00 829066.00 Y 4.1 OO Excludes 3,704,882 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. 0001505856 N Charles F. Dolan 2009 Family Trust FBO Thomas C. Dolan a OO N X1 472396.00 0.00 472396.00 0.00 472396.00 Y 2.4 OO Excludes 4,061,552 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. 0001505858 N Charles F. Dolan 2009 Family Trust FBO Kathleen M. Dolan a OO N X1 422492.00 0.00 422492.00 0.00 422492.00 Y 2.1 OO Excludes 4,111,456 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. 0001505857 N Charles F. Dolan 2009 Family Trust FBO Marianne E. Dolan Weber a OO N X1 430991.00 0.00 430991.00 0.00 430991.00 Y 2.2 OO Excludes 4,102,957 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 Dolan Weber disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities. 0001505854 N Charles F. Dolan 2009 Family Trust FBO Deborah A. Dolan-Sweeney a OO N X1 395398.00 0.00 395398.00 0.00 395398.00 Y 2.0 OO Excludes 4,138,550 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. 0001505847 N Charles F. Dolan 2009 Family Trust FBO Patrick F. Dolan a OO N X1 15565.00 0.00 15565.00 0.00 15565.00 Y 0.1 OO Excludes 4,513,952 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 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. 0001505841 N Ryan Dolan 1989 Trust a OO N X1 5052.00 0.00 5052.00 0.00 5052.00 Y 0.1 OO Excludes 4,524,465 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. 0001505842 N Tara Dolan 1989 Trust a OO N X1 5052.00 0.00 5052.00 0.00 5052.00 Y 0.1 OO Excludes 4,524,465 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. 0001513347 N CFD 2010 Grandchildren Trust FBO Descendants of Kathleen M. Dolan a OO N X1 23906.00 0.00 23906.00 0.00 23906.00 Y 0.1 SA Excludes 4,505,611 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 CFD 2010 Grandchildren Trust FBO Descendants of 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. 0001513359 N CFD 2010 Grandchildren Trust FBO Descendants of Marianne E. Dolan Weber a OO N X1 18703.00 0.00 18703.00 0.00 18703.00 Y 0.1 OO Excludes 4,510,814 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 CFD 2010 Grandchildren Trust FBO Descendants of 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. 0001564761 N Kathleen M. Dolan 2012 Descendants Trust a OO N X1 1000.00 0.00 1000.00 0.00 1000.00 Y 0.1 OO Excludes 4,528,517 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. 0001564760 N Marianne E. Dolan Weber 2012 Descendants Trust a OO N X1 18702.00 0.00 18702.00 0.00 18702.00 Y 0.1 OO Excludes 4,510,815 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. 0001871757 N CFD 2021 GC Trust FBO Kevyn A. Dolan a OO N X1 11000.00 0.00 11000.00 0.00 11000.00 Y 0.1 OO Excludes 4,518,517 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 CFD 2021 GC Trust FBO Kevyn A. Dolan disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities. 0001871662 N CFD 2021 GC Trust FBO Tara E. Dolan a OO N X1 11000.00 0.00 11000.00 0.00 11000.00 Y 0.1 OO Excludes 4,518,517 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 CFD 2021 GC Trust FBO Tara E. Dolan disclaims beneficial ownership. This report shall not be construed as an admission that such person is the beneficial owner of such securities. Class A Common Stock, par value $.01 per share Madison Square Garden Sports Corp. TWO PENNSYLVANIA PLAZA NEW YORK NY 10121 This Amendment No. 9 to Schedule 13D ("Amendment No. 9") 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 $.01 per share (the "Class B Common Stock"), of Madison Square Garden Sports Corp. (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 $.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, and (ii) certain trustees of such Group Members (the persons referred to in clauses (i) and (ii) collectively, the "Reporting Persons") to report, among other things, 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 6. The Schedule 13D filed by the original Reporting Persons on October 9, 2015, as amended and supplemented by Amendment No. 1 filed on September 13, 2016, Amendment No. 2 filed on December 26, 2017, Amendment No. 3 filed on December 11, 2018, Amendment No. 4 filed on September 24, 2019, Amendment No. 5 filed on December 31, 2019, Amendment No. 6 filed on December 31, 2024, Amendment No. 7 filed on February 4, 2025, and Amendment No. 8 filed on February 24, 2026 (as amended, the "Schedule 13D"), is hereby amended and supplemented as set forth below in this Amendment No. 9. The disclosure in Item 5(a) and (b) is hereby amended and supplemented as follows: (a) and (b) As of February 27, 2026, the Group Members may be deemed to beneficially own an aggregate of 5,155,023 shares of Class A Common Stock as a result of their beneficial ownership of (i) 591,295 shares of Class A Common Stock (inclusive of shares held by the Dolan Family Foundation, for which certain Group Members serve as a director), and (ii) 4,529,517 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 21.3% of the total shares of the 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 4,529,517 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. 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 38,832 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 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 19,539,816 outstanding shares of Class A Common Stock as of January 30, 2026, as reported by the Issuer in its Quarterly Report on Form 10-Q that was filed with the SEC on February 6, 2026. See the responses to Items 7 through 13 of each cover page to this Amendment No. 9, 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 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. See Item 5(a) above, Exhibit A and Exhibit B. Other than as described herein, there were no transactions in the Class A Common Stock effected by the Reporting Persons named in response to Item 5(a) since Amendment No. 8 to Schedule 13D. The information contained in Item 6 of this Amendment No. 9 is incorporated by reference. The disclosure in Item 6 is hereby amended by adding the following at the end thereof: On February 25, 2026, the CFD 2009 Family Trust FBO James L. Dolan contributed 4,431 shares of Class A Common Stock of the Issuer to CFD 2009 Family Trust LLC and the Charles F. Dolan Children Trust FBO James L. Dolan contributed 29,249 shares of Class A Common Stock of the Issuer to CFD 2009 Children's Trust LLC. On February 25, 2026, James L. Dolan entered into a Secured Margin Line of Credit Note (the "Note") and each of CFD 2009 Family Trust LLC and CFD 2009 Children's Trust LLC entered into a Margin Line of Credit Collateral Agreement (the "Collateral Agreement"), in each case, with JPMorgan Chase Bank, N.A. ("JPM"). In connection therewith, James L. Dolan agreed to pledge to JPM 189,613 shares of Class A Common Stock of the Issuer, CFD 2009 Family Trust LLC agreed to pledge to JPM 4,431 shares of Class A Common Stock of the Issuer and CFD 2009 Children's Trust LLC agreed to pledge to JPM 29,249 shares of Class A Common Stock of the Issuer (all such pledged shares of Class A Common Stock collectively, the "Collateral") to secure obligations under the Note pursuant to the Note and the Collateral Agreement. Upon the occurrence of certain events that are customary with this type of transaction, JPM may exercise its rights to foreclose on, and dispose of, the Collateral in accordance with the Note and the Collateral Agreement. Copies of the Note and the Collateral Agreement are attached as Exhibits E and F to this Schedule 13D and are incorporated herein by reference. The disclosure in Item 7 is hereby amended by adding Exhibit D.2, Exhibit E and Exhibit F in appropriate order as follows: Exhibit A.2: Supplemental Beneficial Ownership Information Exhibit D.2: Joint Filing Agreement, dated February 27, 2026. Exhibit E: *Secured Margin Line of Credit Note, dated as of February 25, 2026. Exhibit F: *Margin Line of Credit Collateral Agreement, dated as of February 25, 2026. *Portions of this exhibit have been redacted in compliance with Regulation S-K Item 601(b)(10). The omitted information is not material and would likely cause competitive harm to the Reporting Persons if publicly disclosed. James L. Dolan /s/ James L. Dolan 02/27/2026 Kathleen M. Dolan, individually and as Trustee of certain trusts described herein /s/ Brian G. Sweeney 02/27/2026 Marianne Dolan Weber /s/ Brian G. Sweeney 02/27/2026 Deborah A. Dolan-Sweeney /s/ Brian G. Sweeney 02/27/2026 Patrick F. Dolan /s/ Dennis H. Javer 02/27/2026 Corby Dolan Leinauer, as a Trustee of certain trusts described herein /s/ Brian G. Sweeney 02/27/2026 Mary S. Dolan, as a Trustee of certain trusts described herein /s/ Brian G. Sweeney 02/27/2026 Paul J. Dolan, as a Trustee of certain trusts described herein /s/ Paul J. Dolan 02/27/2026 Charles F. Dolan Children Trust FBO Kathleen M. Dolan /s/ Brian G. Sweeney 02/27/2026 /s/ Paul J. Dolan 02/27/2026 Charles F. Dolan Children Trust FBO Deborah Dolan-Sweeney /s/ Brian G. Sweeney 02/27/2026 /s/ Brian G. Sweeney 02/27/2026 Charles F. Dolan Children Trust FBO Marianne Dolan Weber /s/ Brian G. Sweeney 02/27/2026 /s/ Brian G. Sweeney 02/27/2026 Charles F. Dolan Children Trust FBO Thomas C. Dolan /s/ Brian G. Sweeney 02/27/2026 /s/ Brian G. Sweeney 02/27/2026 Charles F. Dolan Children Trust FBO James L. Dolan /s/ Brian G. Sweeney 02/27/2026 /s/ Paul J. Dolan 02/27/2026 Charles F. Dolan 2009 Family Trust FBO James L. Dolan /s/ Brian G. Sweeney 02/27/2026 /s/ Brian G. Sweeney 02/27/2026 Charles F. Dolan 2009 Family Trust FBO Thomas C. Dolan /s/ Brian G. Sweeney 02/27/2026 /s/ Brian G. Sweeney 02/27/2026 Charles F. Dolan 2009 Family Trust FBO Kathleen M. Dolan /s/ Brian G. Sweeney 02/27/2026 /s/ Brian G. Sweeney 02/27/2026 Charles F. Dolan 2009 Family Trust FBO Marianne E. Dolan Weber /s/ Brian G. Sweeney 02/27/2026 /s/ Brian G. Sweeney 02/27/2026 Charles F. Dolan 2009 Family Trust FBO Deborah A. Dolan-Sweeney /s/ Brian G. Sweeney 02/27/2026 /s/ Brian G. Sweeney 02/27/2026 Charles F. Dolan 2009 Family Trust FBO Patrick F. Dolan /s/ Brian G. Sweeney 02/27/2026 /s/ Brian G. Sweeney 02/27/2026 Ryan Dolan 1989 Trust /s/ Brian G. Sweeney 02/27/2026 Tara Dolan 1989 Trust /s/ Brian G. Sweeney 02/27/2026 CFD 2010 Grandchildren Trust FBO Descendants of Kathleen M. Dolan /s/ Brian G. Sweeney 02/27/2026 /s/ Brian G. Sweeney 02/27/2026 CFD 2010 Grandchildren Trust FBO Descendants of Marianne E. Dolan Weber /s/ Brian G. Sweeney 02/27/2026 /s/ Brian G. Sweeney 02/27/2026 Kathleen M. Dolan 2012 Descendants Trust /s/ Paul J. Dolan 02/27/2026 /s/ Brian G. Sweeney 02/27/2026 Marianne E. Dolan Weber 2012 Descendants Trust /s/ Brian G. Sweeney 02/27/2026 CFD 2021 GC Trust FBO Kevyn A. Dolan /s/ Brian G. Sweeney 02/27/2026 /s/ Brian G. Sweeney 02/27/2026 CFD 2021 GC Trust FBO Tara E. Dolan /s/ Brian G. Sweeney 02/27/2026 /s/ Brian G. Sweeney 02/27/2026