MSGS Spinco: Dolan reports 100-share indirect holding

MSGS Spinco, Inc. is the issuer of 100 shares of common stock reported as held indirectly by Madison Square Garden Sports Corp. and its subsidiaries as of October 9, 2026.

Rhea-AI Filing Summary

MSGS Spinco, Inc. is the issuer of 100 shares of common stock reported as held indirectly by Madison Square Garden Sports Corp. and its subsidiaries as of October 9, 2026. Reporting person Marianne Dolan, a member of a Section 13(d) group, may be deemed to beneficially own the shares but disclaims beneficial ownership except to the extent of any pecuniary interest.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider WEBER MARIANNE DOLAN

Role Insider

Type	Security	Shares	Price	Value
holding	Common Stock, par value $0.01 per share F1	--	--	--

Holdings After Transaction: Common Stock, par value $0.01 per share — 100 shares (Indirect, By Madison Square Garden Sports Corp. and its subsidiaries)

Footnotes (1)

1. F1. The Reporting Person is a member of a "group" with respect to certain securities of Madison Square Garden Sports Corp. ("MSGS") for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). As such, the Reporting Person may be deemed to beneficially own shares of MSGS Spinco, Inc. ("MSGS Spinco") held directly by MSGS and its subsidiaries. The Reporting Person disclaims beneficial ownership of the shares of MSGS Spinco held by MSGS and its subsidiaries, except to the extent of any pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is a beneficial owner of such securities for purposes of Section 16 of the Exchange Act or for any other purpose.

Key Figures

Reported indirect holding: 100 shares Common stock par value: $0.01 per share

2 metrics

Reported indirect holding 100 shares As of October 9, 2026; held by Madison Square Garden Sports Corp. and its subsidiaries

Common stock par value $0.01 per share Common Stock

Key Terms

Section 13(d) Group, beneficially own, pecuniary interest

3 terms

Section 13(d) Group regulatory

"a member of a "group" with respect to certain securities"

beneficially own regulatory

"may be deemed to beneficially own shares"

Beneficially own means having the economic rights and risks of a security—such as the right to receive dividends, sell the shares, or profit from price changes—whether or not your name appears on the official share register. Think of it like renting a car: you use it and reap the benefits even if the title lists someone else. Investors care because beneficial ownership determines who truly controls value, must be disclosed under securities rules, and can signal potential influence or trading activity that affects a stock’s price.

pecuniary interest financial

"except to the extent of any pecuniary interest therein"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many MSGR-WI shares are reported as held by Madison Square Garden Sports Corp. and its subsidiaries?

100 shares of MSGS Spinco common stock are reported as held indirectly by Madison Square Garden Sports Corp. and its subsidiaries as of October 9, 2026. Marianne Dolan is identified as a member of a Section 13(d) group and disclaims beneficial ownership except to the extent of any pecuniary interest.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/26/2026 - 07:03 PM EDT Accepted by SEC EDGAR 10/09/2026 - 04:58 PM EDT Learn about SEC filing dates

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

WEBER MARIANNE DOLAN

(Last) (First) (Middle)

TWO PENN PLAZA

(Street)

NEW YORK NEW YORK 10121

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
10/09/2026

3. Issuer Name and Ticker or Trading Symbol
MSGS Spinco, Inc. [ NONE ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
	Officer (give title below)	X	Other (specify below)
			Member of 13(d) Group

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock, par value $0.01 per share	100	I	By Madison Square Garden Sports Corp. and its subsidiaries(1)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The Reporting Person is a member of a "group" with respect to certain securities of Madison Square Garden Sports Corp. ("MSGS") for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). As such, the Reporting Person may be deemed to beneficially own shares of MSGS Spinco, Inc. ("MSGS Spinco") held directly by MSGS and its subsidiaries. The Reporting Person disclaims beneficial ownership of the shares of MSGS Spinco held by MSGS and its subsidiaries, except to the extent of any pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is a beneficial owner of such securities for purposes of Section 16 of the Exchange Act or for any other purpose.

Remarks:

The Reporting Person is a member of a Section 13(d) Group with respect to securities of MSGS. This Form 3 is being filed in connection with the Securities and Exchange Commission's declaration of effectiveness of the Registration Statement on Form 10 of MSGS Spinco, which describes the planned distribution by MSGS to its stockholders of all of the common stock of MSGS Spinco.

	/s/ Richard Baccari, Attorney-in-Fact for Marianne Dolan Weber	10/09/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)