Sphere Entertainment Co. — Director's Dealing 2025

Sep 17, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Sphere Entertainment Co. (SPHR)
CIK: 0001795250
Period of Report: 2025-09-15

Reporting Person: Brunner Gregory (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-09-15	Class A Common Stock	M	1479	$0.00	Acquired	2425	Direct
2025-09-15	Class A Common Stock	M	624	$0.00	Acquired	3049	Direct
2025-09-15	Class A Common Stock	F	757	$60.29	Disposed	2292	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-09-15	Restricted Stock Units	$	M	1479	Disposed	2026-09-15	Class A Common Stock (1479)	Direct
2025-09-15	Restricted Stock Units	$	M	624	Disposed	2027-09-15	Class A Common Stock (624)	Direct

Footnotes

F1: Each restricted stock unit ("RSU") was granted on September 1, 2023 under the Sphere Entertainment Co. ("SPHR") 2020 Employee Stock Plan, as amended (the "2020 Employee Stock Plan"), and represents a right to receive one share of Class A Common Stock or the cash equivalent thereof. One-third of the RSUs vested and were settled on September 13, 2024. One-third of the RSUs vested and were settled on September 15, 2025. The remaining one-third of the RSUs are scheduled to vest and settle on September 15, 2026.

F2: Each RSU was granted on August 27, 2024 under the 2020 Employee Stock Plan and represents a right to receive one share of Class A Common Stock or the cash equivalent thereof. One-third of the RSUs vested and were settled on September 15, 2025. One-third of the RSUs are scheduled to vest and settle on September 15, 2026. The remaining one-third of the RSUs are scheduled to vest and settle on September 15, 2027.

F3: Represents RSUs of SPHR withheld to satisfy tax withholding obligations in connection with the vesting and settlement of RSUs described in footnotes1 and 2, exempt under Rule 16b-3.