X0508 4 2023-09-22 1 0001952073 Madison Square Garden Entertainment Corp. MSGE 0001795250 Sphere Entertainment Co. TWO PENNSYLVANIA PLAZA NEW YORK NY 10121 0 0 1 0 0 Class A Common Stock, par value $0.01 per share 2023-09-22 4 S 0 8221188 31.20 D 0 I By Subsidiary On September 22, 2023, Sphere Entertainment Group, LLC (the "Shareholder"), a direct subsidiary of Sphere Entertainment Co., sold 8,221,188 shares of Class A Common Stock of the Issuer in an underwritten public offering at a per share price of $31.20 pursuant to the Underwriting Agreement, dated September 19, 2023, by and among the Issuer, the Shareholder and the underwriters party thereto, which includes the exercise in full of the underwriters' option to purchase additional shares. The public offering price in the underwritten public offering was $32.50 per share. /s/ Mark C. Cresitello, Secretary of Sphere Entertainment Co. 2023-09-22