[144] Sphere Entertainment Co. SEC Filing

SPHR: A holder filed a Form 144 notice to sell up to 20,000 Class A shares, with an aggregate market value of $1,415,848.25.

Rhea-AI Filing Summary

SPHR: A holder filed a Form 144 notice to sell up to 20,000 Class A shares, with an aggregate market value of $1,415,848.25. The filing lists Fidelity Brokerage Services LLC as broker, an approximate sale date of 11/04/2025, and the NYSE as the exchange.

Shares outstanding were 29,132,663; this is a baseline figure, not the amount being offered. Recent sales disclosed for Andrea M. Greenberg include 17,620 shares on 09/11/2025 for $1,019,317.00 and 8,500 shares on 09/18/2025 for $531,250.00.

The shares to be sold were acquired via restricted stock vesting from the issuer on multiple dates, including 09/15/2018 (1,936), 08/26/2020 (8,209), 09/01/2020 (1), 09/15/2020 (5,056), and 09/15/2022 (4,798), with consideration noted as compensation.

FAQ

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

What does SPHR’s Form 144 filing disclose?

A holder plans to sell up to 20,000 Class A shares, aggregate market value $1,415,848.25, through Fidelity Brokerage Services LLC on the NYSE.

When is the planned sale date for SPHR shares?

The approximate date of sale is 11/04/2025.

How many SPHR shares are outstanding?

Shares outstanding were 29,132,663.

Which broker and exchange are listed for the SPHR sale?

Broker: Fidelity Brokerage Services LLC; Exchange: NYSE.

What prior SPHR sales were reported in the past 3 months?

Andrea M. Greenberg sold 17,620 shares on 09/11/2025 for $1,019,317.00 and 8,500 shares on 09/18/2025 for $531,250.00.

How were the SPHR shares to be sold originally acquired?

They were acquired via restricted stock vesting on multiple dates as compensation.

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

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Accepted by SEC EDGAR 11/04/2025 - 04:31 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001653193
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Sphere Entertainment Co.
SEC File Number	001-39245
Address of Issuer	TWO PENNSYLVANIA PLAZA NEW YORK NEW YORK 10121
Phone	(212) 465-6000
Name of Person for Whose Account the Securities are To Be Sold	GREENBERG ANDREA
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Former Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Class A	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	20000	1415848.25	29132663	11/04/2025	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Class A	09/15/2018	Restricted Stock Vesting	Issuer			1936	09/15/2018	Compensation
Class A	08/26/2020	Restricted Stock Vesting	Issuer			8209	08/26/2020	Compensation
Class A	09/01/2020	Restricted Stock Vesting	Issuer			1	09/01/2020	Compensation
Class A	09/15/2020	Restricted Stock Vesting	Issuer			5056	09/15/2020	Compensation
Class A	09/15/2022	Restricted Stock Vesting	Issuer			4798	09/15/2022	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Andrea M. Greenberg Two Penn Plaza New York NY 10121	Class A	09/11/2025	17620	1019317.00
Andrea M. Greenberg Two Penn Plaza New York NY 10121	Class A	09/18/2025	8500	531250.00

144: Remarks and Signature

Remarks
Date of Notice	11/04/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Jared Cook, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Andrea M. Greenberg
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)