X0508 4 2023-12-08 0 0001795250 Sphere Entertainment Co. SPHR 0001480991 Dolan Kristin A TWO PENNSYLVANIA PLAZA NEW YORK NY 10121 1 0 0 0 0000933028 DOLAN JAMES LAWRENCE TWO PENNSYLVANIA PLAZA NEW YORK NY 10121 1 1 0 1 Executive Chairman and CEO Member of 13(d) Group 0 Restricted Stock Units 2023-12-08 4 A 0 4660 0.00 A Class A Common Stock 4660 16861 D Each restricted stock unit ("RSU") is granted under the Sphere Entertainment Co. 2020 Stock Plan for Non-Employee Directors, as amended, and represents a right to receive one share of Class A Common Stock or the cash equivalent thereof. The RSUs are fully vested on the date of the grant and will be settled in stock or in cash on the first business day 90 days after a separation from service. Securities are held by Kristin A. Dolan, James L. Dolan's spouse. Mr. Dolan disclaims beneficial ownership of these securities beneficially owned or deemed to be beneficially owned by Ms. Dolan and this report shall not be deemed to be an admission that Mr. Dolan is, for the purposes of Section 16 or for any other purpose, the beneficial owner of such securities. /s/ Mark C. Cresitello, Attorney-in-Fact for Kristin A. Dolan 2023-12-12 /s/ James L. Dolan 2023-12-12