Signature
KATHLEEN M. DOLAN 2012 DESCENDANTS TRUST By: /s/ Brian G. Sweeney, Attorney-in-fact
Stock symbol
SPHR
Transactions as of
Sep 8, 2025
Transactions value $
$0
Form type
4
Date filed
9/10/2025, 09:26 PM

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Kathleen M. Dolan 2012 Descendants Trust Member of 13(d) Group C/O RICHARD BACCARI, MLC VENTURES LLC, PO BOX 1014, YORKTOWN HEIGHTS KATHLEEN M. DOLAN 2012 DESCENDANTS TRUST By: /s/ Brian G. Sweeney, Attorney-in-fact 2025-09-10 0001564761

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction SPHR Class B Common Stock Other +56.9K 56.9K Sep 8, 2025 Class A Common Stock 56.9K Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Sphere Entertainment Co. Class B Common Stock ("Class B Common Stock") is convertible at the option of the holder on a share for share basis into Sphere Entertainment Co. Class A Common Stock ("Class A Common Stock").
F2 On September 8, 2025, the Reporting Person received the shares of Class B Common Stock in partial repayment of a promissory note. For purposes of the repayment, the 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.