Gregory Brunner - Sep 15, 2025 Form 4 Insider Report for Sphere Entertainment Co. (SPHR)

Role
SVP, Controller & PAO
Signature
/s/ Mark C. Cresitello, Attorney-in-Fact for Gregory Brunner
Stock symbol
SPHR
Transactions as of
Sep 15, 2025
Transactions value $
-$45,640
Form type
4
Date filed
9/17/2025, 04:05 PM
Previous filing
Mar 14, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Brunner Gregory SVP, Controller & PAO TWO PENNSYLVANIA PLAZA, NEW YORK /s/ Mark C. Cresitello, Attorney-in-Fact for Gregory Brunner 2025-09-17 0001978906

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SPHR Class A Common Stock Options Exercise $0 +1.48K +156.34% $0.00 2.43K Sep 15, 2025 Direct F1
transaction SPHR Class A Common Stock Options Exercise $0 +624 +25.73% $0.00 3.05K Sep 15, 2025 Direct F2
transaction SPHR Class A Common Stock Tax liability -$45.6K -757 -24.83% $60.29 2.29K Sep 15, 2025 Direct F3

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 Restricted Stock Units Options Exercise $0 -1.48K -49.98% $0.00 1.48K Sep 15, 2025 Class A Common Stock 1.48K Direct F1
transaction SPHR Restricted Stock Units Options Exercise $0 -624 -33.33% $0.00 1.25K Sep 15, 2025 Class A Common Stock 624 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
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.