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AMENDMENT NO. 15 TO SCHEDULE 13D

This Amendment No. 15 to Schedule 13D (“Amendment No. 15”) 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 of MSG Networks Inc. (the “Issuer”), par value $.01 per share (the “Class B Common Stock”), which 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 (collectively, the “Reporting Persons”) to report the entry by the Reporting Persons into the Voting Agreement (as defined below).

The Schedule 13D (the “Schedule”) filed by the original Reporting Persons on February 12, 2010, as amended and supplemented by Amendment No. 1 filed on November 19, 2010, Amendment No. 2 filed on March 10, 2011, Amendment No. 3 filed on September 16, 2011, Amendment No. 4 filed on October 3, 2012, Amendment No. 5 filed on May 22, 2013, Amendment No. 6 filed on August 22, 2013, Amendment No. 7 filed on September 20, 2013, Amendment No. 8 filed on March 27, 2014, Amendment No. 9 filed on September 5, 2014, Amendment No. 10 filed on October 2, 2015, Amendment No. 11 filed on September 13, 2016, Amendment No. 12 filed on December 26, 2017, Amendment No. 13 filed on September 24, 2019 and Amendment No. 14 filed on December 11, 2020 is hereby amended and supplemented by the Reporting Persons as set forth below in this Amendment No. 15.

The disclosure in Item 2(a) is hereby amended to read in its entirety as follows:

(a) The names of the Reporting Persons who are Group Members are: Charles F. Dolan, individually and as a Trustee of the Charles F. Dolan 2009 Revocable Trust (the “CFD 2009 Trust”); Helen A. Dolan; 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 (collectively, 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 E. Dolan Weber; Deborah A. Dolan-Sweeney; the CFD 2009 Trust; 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 Ryan Dolan 1989 Trust; and the Tara Dolan 1989 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 and the Charles F. Dolan 2009 Family Trust FBO Deborah A. Dolan-Sweeney (collectively, the “2009 Family Trusts” and individually, a “2009 Family Trust”); Mary S. Dolan, as a Trustee of the Dolan Children Trusts FBO Deborah Dolan-Sweeney and each of the 2009 Family Trusts; and Paul J. Dolan, as a Trustee of the Dolan Children Trusts FBO Kathleen M. Dolan and James L. Dolan.

The disclosure in Item 4 is hereby amended by adding the following at the end thereof:

On March 25, 2021, the Issuer, Madison Square Garden Entertainment Corp., a Delaware corporation (“MSG Entertainment”), and Broadway Sub Inc., a Delaware corporation and a direct wholly-owned subsidiary of MSG Entertainment (“Merger Sub”), entered into an Agreement and Plan of Merger (the “Merger Agreement”), which provides for Merger Sub to merge with and into the Issuer (the “Merger”), with the Issuer surviving the Merger as a wholly-owned direct subsidiary

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of MSG Entertainment as described in Item 6 below. On March 25, 2021, MSG Entertainment and the Reporting Persons entered into a voting agreement (the “Voting Agreement”), pursuant to which the Reporting Persons agreed to vote their shares of Common Stock in favor of the adoption of the Merger Agreement as described in Item 6.

The information contained in Item 6 of this Amendment No. 15 is incorporated by reference.

The disclosure in Item 5(a) and (b) is hereby amended and restated to read in its entirety as follows:

(a) and (b) the Group Members may be deemed to beneficially own an aggregate of 17,392,933 shares of Class A Common Stock as a result of their beneficial ownership of (i) 3,804,378 shares of Class A Common Stock, and (ii) 13,588,555 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 29.3% of the total shares of the Issuer’s common stock 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 13,588,555 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 112,136 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 are calculated based on the shares of Class A Common Stock issued and outstanding on January 29, 2021, as reported in the Issuer’s quarterly report on Form 10-Q for the quarter ended December 31, 2020 filed by the Issuer with the Securities and Exchange Commission.

Charles F. Dolan may be deemed to beneficially own an aggregate of 7,404,297 shares of Class A Common Stock, including (i) 539,111 shares of Class A Common Stock and (ii) 6,865,186 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 14.7% of the shares of Class A Common Stock currently outstanding. He 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 7,404,297 shares of Class A Common Stock (including 82,228 shares of Class A Common Stock owned of record by the CFD 2009 Trust, 390,408 shares of Class A Common Stock owned of record by the Dolan Family Foundation, 66,475 shares of Class A Common Stock owned of record by the 2009 Family Trusts, and 6,865,186 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock, including 676,156 shares of Class B Common Stock owned of record by the CFD 2009 Trust and 6,189,030 shares of Class B Common Stock owned of record by the 2009 Family Trusts). He disclaims beneficial ownership of 390,408 shares of Class A Common Stock owned of record by the Dolan Family Foundation and 66,475 shares of Class A Common Stock owned of record by the 2009 Family Trusts, and 6,189,030 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock owned of record by the 2009 Family Trusts, and this report shall not be deemed to be an admission that such person is the beneficial owner of such securities.

Helen A. Dolan may be deemed to beneficially own an aggregate of 7,404,297 shares of Class A Common Stock, including (i) 539,111 shares of Class A Common Stock and (ii) 6,865,186 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 14.7% of the shares of Class A Common Stock currently outstanding. She 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 7,404,297 shares of Class A Common Stock (including 390,408 shares of Class A Common Stock owned of record by the Dolan Family Foundation, 66,475 shares of Class A Common Stock owned of record by the 2009 Family Trusts, 82,228 shares of Class A Common Stock owned of record by the CFD 2009 Trust, and 6,865,186 shares of Class A Common Stock issuable upon conversion of an equal number of

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shares of Class B Common Stock, including 676,156 shares of Class B Common Stock owned of record by the CFD 2009 Trust and 6,189,030 shares of Class B Common Stock owned of record by the 2009 Family Trusts). She disclaims beneficial ownership of 390,408 shares of Class A Common Stock owned of record by the Dolan Family Foundation, 66,475 shares of Class A Common Stock owned of record by the 2009 Family Trusts, 82,228 shares of Class A Common Stock owned of record by the CFD 2009 Trust, and 6,865,186 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock, including 676,156 shares of Class B Common Stock owned of record by the CFD 2009 Trust and 6,189,030 shares of Class B Common Stock owned of record by the 2009 Family Trusts, and this report shall not be deemed to be an admission that such person is the beneficial owner of such securities.

James L. Dolan may be deemed to beneficially own an aggregate of 5,811,434 shares of Class A Common Stock, including (i) 2,774,099 shares of Class A Common Stock (including options to purchase 2,317,228 shares of Class A Common Stock that are exercisable within sixty days of this filing) and (ii) 3,037,335 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 11.9% of the shares of Class A Common Stock currently outstanding. He may be deemed to have (a) the sole power to vote or direct the vote of and to dispose of or to direct the disposition of 3,886,648 shares of Class A Common Stock (including 343,583 shares of Class A Common Stock owned of record personally, 1,475 shares of Class A Common Stock held as custodian for one or more minor children, options to purchase 2,317,228 shares of Class A Common Stock that are exercisable within sixty days of this filing and 1,224,362 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock owned of record personally) and (b) the current shared power to vote or direct the vote of and to dispose of or direct the disposition of 1,924,786 shares of Class A Common Stock (including 1,250 shares of Class A Common Stock owned jointly with his spouse, 22,813 shares of Class A Common Stock owned of record personally by his spouse, and 87,750 shares of Class A Common Stock owned of record by the Dolan Children Trust for his benefit and 1,812,973 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock owned of record by the Dolan Children Trust for his benefit). He disclaims beneficial ownership of 1,475 shares of Class A Common Stock held as custodian for one or more minor children, 22,813 shares of Class A Common Stock owned of record personally by his spouse, and 87,750 shares of Class A Common Stock and 1,812,973 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock owned of record by the Dolan Children Trust for his benefit, and this report shall not be deemed to be an admission that such person is the beneficial owner of such securities. See Exhibit A.

Thomas C. Dolan may be deemed to beneficially own 1,007,611 shares of Class A Common Stock, including (i) 80,653 shares of Class A Common Stock and (ii) 926,958 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock. This amount represents approximately 2.3% of the shares of Class A Common Stock currently outstanding. He may be deemed to have (a) the sole power to vote or direct the vote of and to dispose of or to direct the disposition of 40,767 shares of Class A Common Stock owned of record personally and (b) the current shared power to vote or direct the vote of and to dispose of or to direct the disposition of 39,886 shares of Class A Common Stock and 926,958 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock owned of record by the Dolan Children Trust for his benefit. He disclaims beneficial ownership of 39,886 shares of Class A Common Stock and 926,958 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock owned of record by the Dolan Children Trust for his benefit, and this report shall not be deemed to be an admission that such person is the beneficial owner of such securities. See Exhibit A.

Kathleen M. Dolan may be deemed to beneficially own an aggregate of 5,874,391 shares of Class A Common Stock, including (i) 375,384 shares of Class A Common Stock and (ii) 5,499,007 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 12.0% of the shares of Class A Common Stock currently outstanding. She may be deemed to have (a) the sole power to vote or direct the vote of and to dispose of or to direct the disposition of 36,867 shares of Class A Common Stock (including 4,705 shares of Class A Common Stock owned of record personally and 1,850 shares of Class A Common Stock held as custodian for one or more minor children and an

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aggregate of 30,312 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock owned of record by the Ryan Dolan 1989 Trust and Tara Dolan 1989 Trust) and (b) the current shared power to vote or direct the vote of and to dispose of or direct the disposition of 5,837,524 shares of Class A Common Stock (including 97,601 shares of Class A Common Stock owned of record by the Green Mountain Foundation Inc., an aggregate of 271,228 shares of Class A Common Stock owned of record by the Dolan Children Trusts and an aggregate of 5,468,695 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock owned of record by the Dolan Children Trusts). She disclaims beneficial ownership of 1,850 shares of Class A Common Stock held as custodian for one or more minor children, 97,601 shares of Class A Common Stock owned of record by the Green Mountain Foundation Inc., an aggregate of 271,228 shares of Class A Common Stock owned of record by the Dolan Children Trusts and an aggregate of 5,499,007 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock owned of record by the Dolan Children Trusts, the Ryan Dolan 1989 Trust and the Tara Dolan 1989 Trust, and this report shall not be deemed to be an admission that such person is the beneficial owner of such securities. See Exhibit A.

Marianne Dolan Weber may be deemed to beneficially own an aggregate of 1,047,008 shares of Class A Common Stock, including (i) 156,206 shares of Class A Common Stock and (ii) 890,802 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 2.4% of the shares of Class A Common Stock currently outstanding. She may be deemed to have (a) the sole power to vote or direct the vote of and to dispose of or to direct the disposition of 9,191 shares of Class A Common Stock owned of record personally and (b) the current shared power to vote or direct the vote of and to dispose of or to direct the disposition of 1,037,817 shares of Class A Common Stock (including 625 shares of Class A Common Stock held of record personally by her spouse, 925 shares of Class A Common Stock held by a member of her household, 97,601 shares of Class A Common Stock owned of record by the Heartfelt Wings Foundation Inc., 47,864 shares of Class A Common Stock owned by the Dolan Children Trust for her benefit and 890,802 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock owned of record by the Dolan Children Trust for her benefit). She disclaims beneficial ownership of 625 shares of Class A Common Stock held of record personally by her spouse, 925 shares of Class A Common Stock held by a member of her household, 97,601 shares of Class A Common Stock owned of record by the Heartfelt Wings Foundation Inc. and 47,864 shares of Class A Common Stock and 890,802 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock owned of record by the Dolan Children Trust for her benefit, and this report shall not be deemed to be an admission that such person is the beneficial owner of such securities. See Exhibit A.

Deborah A. Dolan-Sweeney may be deemed to beneficially own an aggregate of 1,779,654 shares of Class A Common Stock, including (i) 184,517 shares of Class A Common Stock and (ii) 1,595,137 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 3.9% of the shares of Class A Common Stock currently outstanding. She may be deemed to have (a) the sole power to vote or direct the vote of and to dispose of or to direct the disposition of 20,618 shares of Class A Common Stock owned of record personally, and (b) the current shared power to vote or direct the vote of and to dispose of or direct the disposition of 1,759,036 shares of Class A Common Stock (including 27,057 shares of Class A Common Stock owned of record personally by her spouse, 6,750 shares of Class A Common Stock held by trusts for which her spouse serves as co-trustee, 82,228 shares of Class A Common Stock owned of record by the CFD 2009 Trust for which her spouse serves as co-trustee and 47,864 shares of Class A Common Stock owned of record by the Dolan Children Trust for her benefit, and 1,595,137 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock, including 676,156 shares of Class B Common Stock owned of record by the CFD 2009 Trust for which her spouse serves as co-trustee and 918,981 shares of Class B Common Stock owned of record by the Dolan Children Trust for her benefit). She disclaims beneficial ownership of 27,057 shares of Class A Common Stock owned of record personally by her spouse, 6,750 shares of Class A Common Stock held by trusts for which her spouse serves as co-trustee, 82,228 shares of Class A Common Stock owned of record by the CFD 2009 Trust for which her spouse serves as co-trustee and 47,864 shares of Class A Common Stock owned of record by the Dolan Children Trust for her benefit, and 1,595,137 shares

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of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock, including 676,156 shares of Class B Common Stock owned of record by the CFD 2009 Trust for which her spouse serves as co-trustee and 918,981 shares of Class B Common Stock owned of record by the Dolan Children Trust for her benefit, and this report shall not be deemed to be an admission that such person is the beneficial owner of such securities. See Exhibit A.

Corby Dolan Leinauer may be deemed to beneficially own an aggregate of 6,270,964 shares of Class A Common Stock, including (i) 81,934 shares of Class A Common Stock and (ii) 6,189,030 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 12.6% of the shares of Class A Common Stock currently outstanding. She 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 6,270,964 shares of Class A Common Stock (including 2,059 shares of Class A Common Stock owned of record by the Leinauer Family Education Trust, 837 shares of Class A Common Stock owned of record by the CFD 2012 Grandchildren Trust FBO Aidan J. Dolan, 837 shares of Class A Common Stock owned of record by the CFD 2012 Grandchildren Trust FBO Quentin F. Dolan, 837 shares of Class A Common Stock owned of record by the CFD 2012 Grandchildren Trust FBO Marianne R. Dolan, 837 shares of Class A Common Stock owned of record by the CFD 2012 Grandchildren Trust FBO Kevyn A. Dolan, 10,052 shares of Class A Common Stock owned of record by the CFD 2012 Descendants Trust, an aggregate of 66,475 shares of Class A Common Stock owned of record by the 2009 Family Trusts, and an aggregate of 6,189,030 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock owned of record by the 2009 Family Trusts). She disclaims beneficial ownership of 2,059 shares of Class A Common Stock owned of record by the Leinauer Family Education Trust, 837 shares of Class A Common Stock owned of record by the CFD 2012 Grandchildren Trust FBO Aidan J. Dolan, 837 shares of Class A Common Stock owned of record by the CFD 2012 Grandchildren Trust FBO Quentin F. Dolan, 837 shares of Class A Common Stock owned of record by the CFD 2012 Grandchildren Trust FBO Marianne R. Dolan, 837 shares of Class A Common Stock owned of record by the CFD 2012 Grandchildren Trust FBO Kevyn A. Dolan, 10,052 shares of Class A Common Stock owned of record by the CFD 2012 Descendants Trust, an aggregate of 66,475 shares of Class A Common Stock owned of record by the 2009 Family Trusts, and an aggregate of 6,189,030 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock owned of record by the 2009 Family Trusts, and this report shall not be deemed to be an admission that she is the beneficial owner of such securities. See Exhibit A.

Mary S. Dolan may be deemed to beneficially own an aggregate of 7,250,398 shares of Class A Common Stock, including (i) 142,387 shares of Class A Common Stock and (ii) 7,108,011 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 14.3% of the shares of Class A Common Stock currently outstanding. She may be deemed to have (a) the sole power to vote or direct the vote and to dispose of or direct the disposition of 6,839 shares of Class A Common Stock held as custodian for one or more minor children and (b) the current shared power to vote or direct the vote of and to dispose of or direct the disposition of 7,243,559 shares of Class A Common Stock (including 7,809 shares of Class A Common Stock owned jointly with her spouse, 837 shares of Class A Common Stock owned of record by the CFD 2012 Grandchildren Trust FBO Aidan J. Dolan, 837 shares of Class A Common Stock owned of record by the CFD 2012 Grandchildren Trust FBO Quentin F. Dolan, 837 shares of Class A Common Stock owned of record by the CFD 2012 Grandchildren Trust FBO Marianne R. Dolan, 837 shares of Class A Common Stock owned of record by the CFD 2012 Grandchildren Trust FBO Kevyn A. Dolan, 10,052 shares of Class A Common Stock owned of record by the CFD 2012 Descendants Trust, 47,864 shares of Class A Common Stock owned of record by the Dolan Children Trust for the benefit of Deborah Dolan-Sweeney, 918,981 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock owned of record by the Dolan Children Trust for the benefit of Deborah Dolan-Sweeney, an aggregate of 66,475 shares of Class A Common Stock owned of record by the 2009 Family Trusts, and an aggregate of 6,189,030 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock owned of record by the 2009 Family Trusts). She disclaims beneficial ownership of 6,839 shares of Class A Common Stock held as custodian for one or more minor children, 837 shares of Class A Common Stock owned of record by the CFD 2012 Grandchildren Trust FBO Aidan J. Dolan, 837 shares of

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Class A Common Stock owned of record by the CFD 2012 Grandchildren Trust FBO Quentin F. Dolan, 837 shares of Class A Common Stock owned of record by the CFD 2012 Grandchildren Trust FBO Marianne R. Dolan, 837 shares of Class A Common Stock owned of record by the CFD 2012 Grandchildren Trust FBO Kevyn A. Dolan, 10,052 shares of Class A Common Stock owned of record by the CFD 2012 Descendants Trust, 47,864 shares of Class A Common Stock owned of record by the Dolan Children Trust for the benefit of Deborah Dolan-Sweeney, 918,981 shares of Class A Common Stock issuable upon the conversion of Class B Common Stock owned of record by the Dolan Children Trust for the benefit of Deborah Dolan-Sweeney, an aggregate of 66,475 shares of Class A Common Stock owned of record by the 2009 Family Trusts, and an aggregate of 6,189,030 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock owned of record by the 2009 Family Trusts, and this report shall not be deemed to be an admission that such person is the beneficial owner of such securities. See Exhibit A.

Paul J. Dolan may be deemed to beneficially own an aggregate of 2,959,010 shares of Class A Common Stock, including (i) 227,056 shares of Class A Common Stock, and (ii) 2,731,954 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 6.4% of the shares of Class A Common Stock currently outstanding. He may be deemed to have (a) the sole power to vote or direct the vote of and to dispose of or to direct the disposition of 91,442 shares of Class A Common Stock owned of record by the CFD Trust No. 10) and (b) the current shared power to vote or direct the vote of and to dispose of or direct the disposition of 2,867,568 shares of Class A Common Stock (including an aggregate of 135,614 shares of Class A Common Stock owned of record by the Dolan Children Trusts for the benefit of Kathleen M. Dolan and James L. Dolan, and an aggregate of 2,731,954 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock owned of record by the Dolan Children Trusts for the benefit of Kathleen M. Dolan and James L. Dolan). He disclaims beneficial ownership of 91,442 shares of Class A Common Stock owned of record by the CFD Trust No. 10, an aggregate of 135,614 shares of Class A Common Stock owned of record by the Dolan Children Trusts for the benefit of Kathleen M. Dolan and James L. Dolan, and an aggregate of 2,731,954 shares of Class B Common Stock owned of record by the Dolan Children Trusts for the benefit of Kathleen M. Dolan and James L. Dolan, and this report shall not be deemed to be an admission that he is the beneficial owner of such securities. See Exhibit A.

The Charles F. Dolan 2009 Revocable Trust may be deemed to beneficially own an aggregate of 758,384 shares of Class A Common Stock, including (i) 82,228 shares of Class A Common Stock and (ii) 676,156 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 1.7% of the shares of Class A Common Stock currently outstanding. Charles F. Dolan and Brian G. Sweeney are the trustees and have the shared power to vote and dispose of the shares held by the trust. The information contained on page 12 of this Schedule 13D is hereby incorporated by reference. See Exhibit A.

The Charles F. Dolan Children Trust FBO Kathleen M. Dolan may be deemed to beneficially own an aggregate of 966,845 shares of Class A Common Stock, including (i) 47,864 shares of Class A Common Stock and (ii) 918,981 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 2.2% of the shares of Class A Common Stock currently outstanding. Kathleen M. Dolan and Paul J. Dolan are the trustees and have the shared power to vote and dispose of the shares held by the trust. The information contained on page 13 of this Schedule 13D is hereby incorporated by reference.

The Charles F. Dolan Children Trust FBO Deborah Dolan-Sweeney may be deemed to beneficially own an aggregate of 966,845 shares of Class A Common Stock, including (i) 47,864 shares of Class A Common Stock and (ii) 918,981 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 2.2% of the shares of Class A Common Stock currently outstanding. Kathleen M. Dolan and Mary S. Dolan are the trustees and have the shared power to vote and dispose of the shares held by the trust. The information contained on page 14 of this Schedule 13D is hereby incorporated by reference.

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The Charles F. Dolan Children Trust FBO Marianne Dolan Weber may be deemed to beneficially own an aggregate of 938,666 shares of Class A Common Stock, including (i) 47,864 shares of Class A Common Stock and (ii) 890,802 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 2.1% of the shares of Class A Common Stock currently outstanding. Kathleen M. Dolan and Matthew J. Dolan are the trustees and have the shared power to vote and dispose of the shares held by the trust. The information contained on page 15 of this Schedule 13D is hereby incorporated by reference.

The Charles F. Dolan Children Trust FBO Thomas C. Dolan may be deemed to beneficially own an aggregate of 966,844 shares of Class A Common Stock, including (i) 39,886 shares of Class A Common Stock and (ii) 926,958 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 2.2% of the shares of Class A Common Stock currently outstanding. Kathleen M. Dolan and Matthew J. Dolan are the trustees and have the shared power to vote and dispose of the shares held by the trust. The information contained on page 16 of this Schedule 13D is hereby incorporated by reference.

The Charles F. Dolan Children Trust FBO James L. Dolan may be deemed to beneficially own an aggregate of 1,900,723 shares of Class A Common Stock, including (i) 87,750 shares of Class A Common Stock and (ii) 1,812,973 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 4.2% of the shares of Class A Common Stock currently outstanding. Kathleen M. Dolan and Paul J. Dolan are the trustees and have the shared power to vote and dispose of the shares held by the trust. The information contained on page 17 of this Schedule 13D is hereby incorporated by reference.

The 2009 Family Trust FBO James L. Dolan may be deemed to beneficially own an aggregate of 1,304,501 shares of Class A Common Stock, including (i) 13,295 shares of Class A Common Stock and (ii) 1,291,206 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 2.9% of the shares of Class A Common Stock currently outstanding. Corby Dolan Leinauer and Mary S. Dolan are the trustees and have the shared power to vote and dispose of the shares held by the trust. Charles F. Dolan may be deemed to share power to direct the disposition of the shares held by the trust because he has the right to substitute assets with the trust, subject to the trustees’ reasonable satisfaction that the substitute assets received by the trust are of equal value to the trust property exchanged therefor. The information contained on page 18 of this Schedule 13D is hereby incorporated by reference.

The 2009 Family Trust FBO Thomas C. Dolan may be deemed to beneficially own an aggregate of 1,304,501 shares of Class A Common Stock, including (i) 13,295 shares of Class A Common Stock and (ii) 1,291,206 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 2.9% of the shares of Class A Common Stock currently outstanding. Corby Dolan Leinauer and Mary S. Dolan are the trustees and have the shared power to vote and dispose of the shares held by the trust. Charles F. Dolan may be deemed to share power to direct the disposition of the shares held by the trust because he has the right to substitute assets with the trust, subject to the trustees’ reasonable satisfaction that the substitute assets received by the trust are of equal value to the trust property exchanged therefor. The information contained on page 19 of this Schedule 13D is hereby incorporated by reference.

The 2009 Family Trust FBO Kathleen M. Dolan may be deemed to beneficially own an aggregate of 1,229,501 shares of Class A Common Stock, including (i) 13,295 shares of Class A Common Stock and (ii) 1,216,206 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 2.8% of the shares of Class A Common Stock currently outstanding. Corby Dolan Leinauer and Mary S. Dolan are the trustees and have the shared power to vote and dispose of the shares held by the trust. Charles F. Dolan may be deemed to share power to direct the disposition of the shares held by the trust because he has the right to substitute assets with the trust, subject to the trustees’ reasonable satisfaction that the substitute assets received by the trust are of equal value to the trust property exchanged therefor. The information contained on page 20 of this Schedule 13D is hereby incorporated by reference.

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The 2009 Family Trust FBO Marianne E. Dolan Weber may be deemed to beneficially own an aggregate of 1,292,501 shares of Class A Common Stock, including (i) 13,295 shares of Class A Common Stock and (ii) 1,279,206 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 2.9% of the shares of Class A Common Stock currently outstanding. Corby Dolan Leinauer and Mary S. Dolan are the trustees and have the shared power to vote and dispose of the shares held by the trust. Charles F. Dolan may be deemed to share power to direct the disposition of the shares held by the trust because he has the right to substitute assets with the trust, subject to the trustees’ reasonable satisfaction that the substitute assets received by the trust are of equal value to the trust property exchanged therefor. The information contained on page 21 of this Schedule 13D is hereby incorporated by reference.

The 2009 Family Trust FBO Deborah A. Dolan-Sweeney may be deemed to beneficially own an aggregate of 1,124,501 shares of Class A Common Stock, including (i) 13,295 shares of Class A Common Stock and (ii) 1,111,206 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 2.5% of the shares of Class A Common Stock currently outstanding. Corby Dolan Leinauer and Mary S. Dolan are the trustees and have the shared power to vote and dispose of the shares held by the trust. Charles F. Dolan may be deemed to share power to direct the disposition of the shares held by the trust because he has the right to substitute assets with the trust, subject to the trustees’ reasonable satisfaction that the substitute assets received by the trust are of equal value to the trust property exchanged therefor. The information contained on page 22 of this Schedule 13D is hereby incorporated by reference.

The Ryan Dolan 1989 Trust may be deemed to beneficially own an aggregate of 15,156 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 0.0% of the shares of Class A Common Stock currently outstanding. Kathleen M. Dolan is the trustee and has the sole power to vote and dispose of the shares held by the trust. The information contained on page 23 of this Schedule 13D is hereby incorporated by reference.

The Tara Dolan 1989 Trust may be deemed to beneficially own an aggregate of 15,156 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 0.0% of the shares of Class A Common Stock currently outstanding. Kathleen M. Dolan is the trustee and has the sole power to vote and dispose of the shares held by the trust. The information contained on page 24 of this Schedule 13D is hereby incorporated by reference.

Matthew J. Dolan may be deemed to beneficially own an aggregate of 1,909,497 shares of Class A Common Stock, including (i) 91,737 shares of Class A Common Stock and (ii) 1,817,760 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 4.2% of the shares of Class A Common Stock currently outstanding. He may be deemed to have (a) the sole power to vote or direct the vote of and to dispose of or to direct the disposition of 2,387 shares of Class A Common Stock (including 1,225 shares of Class A Common Stock owned of record personally and 1,162 shares of Class A Common Stock held as custodian for a minor child) and (b) the current shared power to vote or direct the vote of and to dispose of or direct the disposition of 1,907,110 shares of Class A Common Stock (including 950 shares of Class A Common Stock owned jointly with his spouse, 650 shares of Class A Common Stock held by his spouse as custodian for a minor child and an aggregate of 87,750 shares of Class A Common stock owned of record by the Dolan Children Trusts for the benefit of Marianne Dolan Weber and Thomas C. Dolan and an aggregate of 1,817,760 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock owned of record by the Dolan Children Trusts for the benefit of Marianne Dolan Weber and Thomas C. Dolan). He disclaims beneficial ownership of 1,162 shares of Class A Common Stock held as custodian for a minor child, 650 shares of Class A Common Stock held by his spouse as custodian for a minor child and an aggregate of 87,750 shares of Class A Common Stock owned of record by the Dolan Children Trusts for the benefit of Marianne Dolan

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Weber and Thomas C. Dolan and an aggregate of 1,817,760 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock owned of record by the Dolan Children Trusts for the benefit of Marianne Dolan Weber and Thomas C. Dolan, and this report shall not be deemed to be an admission that such person is the beneficial owner of such securities. See Exhibit A.

Brian G. Sweeney may be deemed to beneficially own an aggregate of 1,779,654 shares of Class A Common Stock, including (i) 184,517 shares of Class A Common Stock and (ii) 1,595,137 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 3.9% of the shares of Class A Common Stock currently outstanding. He may be deemed to have (a) the sole power to vote or direct the vote of and to dispose of or to direct the disposition of 27,057 shares of Class A Common Stock owned of record personally, and (b) the current shared power to vote or direct the vote of and to dispose of or direct the disposition of 1,752,597 shares of Class A Common Stock (including 20,618 shares of Class A Common Stock owned of record personally by his spouse, 6,750 shares of Class A Common Stock held by trusts for which he serves as co-trustee, 82,228 shares of Class A Common Stock owned of record by the CFD 2009 Trust for which he serves as co-trustee and 47,864 shares of Class A Common Stock owned of record by the Dolan Children Trust for the benefit of his spouse, and 1,595,137 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock, including 676,156 shares of Class B Common Stock owned of record by the CFD 2009 Trust for which he serves as co-trustee and 918,981 shares of Class B Common Stock owned of record by the Dolan Children Trust for the benefit of his spouse). He disclaims beneficial ownership of 20,618 shares of Class A Common Stock owned of record personally by his spouse, 6,750 shares of Class A Common Stock held by trusts for which he serves as co-trustee, 82,228 shares of Class A Common Stock owned of record by the CFD 2009 Trust for which he serves as co-trustee and 47,864 shares of Class A Common Stock owned of record by the Dolan Children Trust for the benefit of his spouse, and 1,595,137 shares of Class A Common Stock issuable upon conversion of an equal number of shares of Class B Common Stock, including 676,156 shares of Class B Common Stock owned of record by the CFD 2009 Trust for which he serves as co-trustee and 918,981 shares of Class B Common Stock owned of record by the Dolan Children Trust for the benefit of his spouse, and this report shall not be deemed to be an admission that such person is the beneficial owner of such securities. See Exhibit A.

The disclosure in Item 6 is hereby amended to add the following at the end thereof:

Merger Agreement

On March 25, 2021, the Issuer, MSG Entertainment and Merger Sub entered the Merger Agreement. The board of directors of the Issuer (the “Board”) approved, adopted and declared advisable the Merger Agreement upon the recommendation of a special committee of independent directors of the Board (the “Special Committee”).

Subject to the terms and conditions of the Merger Agreement, at the time at which the Merger becomes effective (the “Effective Time”), each holder of record of Class A Common Stock issued and outstanding immediately prior to the Effective Time, other than certain excluded shares, will be converted into the right to receive a number of shares of Class A common stock, par value $0.01 per share, of MSG Entertainment (“MSGE Class A Common Stock”) equal to such number of shares of Class A Common Stock held immediately prior to the Effective Time multiplied by 0.172, with such number rounded up to the next whole share (such number of shares of MSGE Class A Common Stock, the “Class A Merger Consideration”), and each holder of record of a share of Class B Common Stock issued and outstanding immediately prior to the Effective Time, other than certain excluded shares, will be converted into the right to receive a number of shares of Class B common stock, par value $0.01 per share, of MSG Entertainment (“MSGE Class B Common Stock” and, together with the MSGE Class A Common Stock, the “MSGE Common Stock”) equal to such number of shares of Class B Common Stock held immediately prior to the Effective Time multiplied by 0.172, with such number rounded up to the next whole share (such number of shares of MSGE Class B Common Stock, the “Class B Merger Consideration”).

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The consummation of the Merger is subject to certain conditions, including: (i) adoption of the Merger Agreement by the holders of a majority of the voting power of the outstanding Common Stock, voting together as a single class; (ii) approval of the issuance by MSG Entertainment of the MSGE Common Stock to be issued in connection with the Merger (the “Share Issuance”) by (a) the holders of a majority of the total votes of the shares of MSGE Common Stock cast on the matter and (b), with respect to the issuance of shares of MSGE Class B Common Stock in the Share Issuance as Class B Merger Consideration, the holders of not less than 66 2/3% of the voting power of the outstanding shares of MSGE Class B Common Stock, voting separately as a class; (iii) the listing on the New York Stock Exchange of the MSGE Class A Common Stock issuable as Class A Merger Consideration; (iv) receipt of certain governmental and other approvals, including the expiration or termination of the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended; (v) the absence of any law or order prohibiting the consummation of the Merger; (vi) the effectiveness of the registration statement on Form S-4 to register the MSGE Class A Common Stock to be issued as Class A Merger Consideration in the Merger; (vii) the accuracy of the representation and warranties of the parties (subject to customary materiality qualifiers); (viii) each party’s performance in all material respects of its obligations contained in the Merger Agreement; (ix) the absence of any material adverse effect (as defined in the Merger Agreement) on MSG Entertainment or the Issuer since the date of the Merger Agreement; and (x) the receipt by each party from the other party of a required tax representation letter to the extent required by the Merger Agreement.

The foregoing description of the Merger Agreement and the transactions contemplated thereby does not purport to be complete and is subject to, and qualified in its entirety by, the full text of the Merger Agreement, a copy of which is filed as Exhibit 2.1 to the Issuer’s Current Report on Form 8-K filed with the SEC on March 26, 2021.

Voting Agreement

On March 25, 2021, MSG Entertainment and the Reporting Persons entered into the Voting Agreement, pursuant to which the Reporting Persons agreed, among other things and subject to the terms and conditions set forth in the Voting Agreement, to vote their shares of Common Stock in favor of the adoption of the Merger Agreement. The Voting Agreement will terminate upon, among other events, the termination of the Merger Agreement in accordance with its terms.

The foregoing description of the Voting Agreement does not purport to be complete and is subject to, and qualified in its entirety by, the full text of the Voting Agreement, a copy of which is included as Exhibit 9 and incorporated herein by reference.

The disclosure in Item 7 is hereby supplemented by adding the following in appropriate numerical order:

Exhibit A: Amended and Restated Trust and Beneficiary List.

Exhibit B.15: Joint Filing Agreement, dated March 29, 2021.

Exhibit 9: MSG Networks Voting and Support Agreement, dated as of March 25, 2021 by and among Madison Square Garden Entertainment Corp. and certain stockholders of MSG Networks Inc. that are signatories thereto (incorporated by reference to Exhibit 10.2 to MSG Networks Inc.’s Current Report on Form 8-K, filed on March 26, 2021 (File No. 001-34434)).

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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.

Date: March 29, 2021

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