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SPHR

Sphere Entertainment Co.

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3931
SEC CIK
0001795250
Parsed reports
370

Last 12 months

Inside the activity.

0 purchase rows · 0 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202500
Dec 202500
Jan 202600
Feb 202600
Mar 202600
Apr 202600
May 202600
Jun 202600
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Aug 202600
Sep 202600
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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
March 30, 2026 Filed Apr 1, 2026 20:06 UTC
Lo Allen M.EVP & Chief Legal Officer
GrantRestricted Stock Units · Derivative 15,734 $0.00 $0.00
Disclosure

SEC source: 0002125414-26-000004 · ownership.xml · derivative · entry 1

Lo Allen M. · CIK 0002125414 · EVP & Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,734

Underlying: Class A Common Stock · 15,734 shares

Expires 2029-03-15

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") is granted under the Sphere Entertainment Co. 2020 Employee Stock Plan, as amended, and represents a right to receive one share of Class A Common Stock or the cash equivalent thereof.

F2 · derivative.exercise_date: The RSUs are scheduled to vest and settle in three equal installments on March 15, 2027, March 15, 2028 and March 15, 2029.

Read SEC document
March 13, 2026 Filed Mar 17, 2026 16:05 UTC
Langer Robert H.EVP, CFO & Treasurer
Exercise / conversionRestricted Stock Units · Derivative 10,648 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-110736 · ownership.xml · derivative · entry 3

Langer Robert H. · CIK 0002052906 · EVP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,298

Underlying: Class A Common Stock · 10,648 shares

Expires 2028-03-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") was granted on March 12, 2025 under the Sphere Entertainment Co. ("SPHR") 2020 Employee Stock Plan, as amended 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 March 13, 2026. One-third of the RSUs are scheduled to vest and settle on March 15, 2027. The remaining one-third of the RSUs are scheduled to vest and settle on March 15, 2028.

F1 · derivative.exercise_date: Each restricted stock unit ("RSU") was granted on March 12, 2025 under the Sphere Entertainment Co. ("SPHR") 2020 Employee Stock Plan, as amended 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 March 13, 2026. One-third of the RSUs are scheduled to vest and settle on March 15, 2027. The remaining one-third of the RSUs are scheduled to vest and settle on March 15, 2028.

Read SEC document
March 13, 2026 Filed Mar 17, 2026 16:05 UTC
Langer Robert H.EVP, CFO & Treasurer
Tax withholdingClass A Common Stock 5,416 $105.70 $572,471.20
Disclosure

SEC source: 0001193125-26-110736 · ownership.xml · nonDerivative · entry 2

Langer Robert H. · CIK 0002052906 · EVP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,232

F2 · kind: Represents RSUs of SPHR withheld to satisfy tax withholding obligations in connection with the vesting and settlement of RSUs described in footnote 1, exempt under Rule 16b-3.

Read SEC document
March 13, 2026 Filed Mar 17, 2026 16:05 UTC
Langer Robert H.EVP, CFO & Treasurer
Exercise / conversionClass A Common Stock 10,648 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-110736 · ownership.xml · nonDerivative · entry 1

Langer Robert H. · CIK 0002052906 · EVP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,648

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") was granted on March 12, 2025 under the Sphere Entertainment Co. ("SPHR") 2020 Employee Stock Plan, as amended 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 March 13, 2026. One-third of the RSUs are scheduled to vest and settle on March 15, 2027. The remaining one-third of the RSUs are scheduled to vest and settle on March 15, 2028.

Read SEC document
March 13, 2026 Filed Mar 17, 2026 16:05 UTC
Koester JenniferPresident & COO, Sphere
Exercise / conversionRestricted Stock Units · Derivative 17,254 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-110726 · ownership.xml · derivative · entry 3

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,509

Underlying: Class A Common Stock · 17,254 shares

Expires 2028-03-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") was granted on March 12, 2025 under the Sphere Entertainment Co. ("SPHR") 2020 Employee Stock Plan, as amended 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 March 13, 2026. One-third of the RSUs are scheduled to vest and settle on March 15, 2027. The remaining one-third of the RSUs are scheduled to vest and settle on March 15, 2028.

F1 · derivative.exercise_date: Each restricted stock unit ("RSU") was granted on March 12, 2025 under the Sphere Entertainment Co. ("SPHR") 2020 Employee Stock Plan, as amended 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 March 13, 2026. One-third of the RSUs are scheduled to vest and settle on March 15, 2027. The remaining one-third of the RSUs are scheduled to vest and settle on March 15, 2028.

Read SEC document
March 13, 2026 Filed Mar 17, 2026 16:05 UTC
Koester JenniferPresident & COO, Sphere
Tax withholdingClass A Common Stock 8,808 $105.70 $931,005.60
Disclosure

SEC source: 0001193125-26-110726 · ownership.xml · nonDerivative · entry 2

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,918

F2 · kind: Represents RSUs of SPHR withheld to satisfy tax withholding obligations in connection with the vesting and settlement of RSUs described in footnote 1, exempt under Rule 16b-3.

Read SEC document
March 13, 2026 Filed Mar 17, 2026 16:05 UTC
Koester JenniferPresident & COO, Sphere
Exercise / conversionClass A Common Stock 17,254 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-110726 · ownership.xml · nonDerivative · entry 1

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,726

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") was granted on March 12, 2025 under the Sphere Entertainment Co. ("SPHR") 2020 Employee Stock Plan, as amended 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 March 13, 2026. One-third of the RSUs are scheduled to vest and settle on March 15, 2027. The remaining one-third of the RSUs are scheduled to vest and settle on March 15, 2028.

Read SEC document
March 13, 2026 Filed Mar 17, 2026 16:05 UTC Exercise / conversionRestricted Stock Units · Derivative 238 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-110732 · ownership.xml · derivative · entry 5

Dolan Ryan Thomas · CIK 0001794486 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 478

Underlying: Class A Common Stock · 238 shares

Expires 2028-03-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each RSU was granted on October 17, 2025 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 March 13, 2026. One-third of the RSUs are scheduled to vest and settle on March 15, 2027. The remaining one-third of the RSUs are scheduled to vest and settle on March 15, 2028.

F2 · derivative.exercise_date: Each RSU was granted on October 17, 2025 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 March 13, 2026. One-third of the RSUs are scheduled to vest and settle on March 15, 2027. The remaining one-third of the RSUs are scheduled to vest and settle on March 15, 2028.

Read SEC document
March 13, 2026 Filed Mar 17, 2026 16:05 UTC Exercise / conversionRestricted Stock Units · Derivative 670 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-110732 · ownership.xml · derivative · entry 4

Dolan Ryan Thomas · CIK 0001794486 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,342

Underlying: Class A Common Stock · 670 shares

Expires 2028-03-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") was granted on March 12, 2025 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 March 13, 2026. One-third of the RSUs are scheduled to vest and settle on March 15, 2027. The remaining one-third of the RSUs are scheduled to vest and settle on March 15, 2028.

F1 · derivative.exercise_date: Each restricted stock unit ("RSU") was granted on March 12, 2025 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 March 13, 2026. One-third of the RSUs are scheduled to vest and settle on March 15, 2027. The remaining one-third of the RSUs are scheduled to vest and settle on March 15, 2028.

Read SEC document
March 13, 2026 Filed Mar 17, 2026 16:05 UTC Tax withholdingClass A Common Stock 325 $105.70 $34,352.50
Disclosure

SEC source: 0001193125-26-110732 · ownership.xml · nonDerivative · entry 3

Dolan Ryan Thomas · CIK 0001794486 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,059

F3 · kind: Represents RSUs of SPHR withheld to satisfy tax withholding obligations in connection with the vesting and settlement of RSUs described in footnotes 1 and 2, exempt under Rule 16b-3.

Read SEC document
March 13, 2026 Filed Mar 17, 2026 16:05 UTC Exercise / conversionClass A Common Stock 238 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-110732 · ownership.xml · nonDerivative · entry 2

Dolan Ryan Thomas · CIK 0001794486 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,384

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: Each RSU was granted on October 17, 2025 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 March 13, 2026. One-third of the RSUs are scheduled to vest and settle on March 15, 2027. The remaining one-third of the RSUs are scheduled to vest and settle on March 15, 2028.

Read SEC document
March 13, 2026 Filed Mar 17, 2026 16:05 UTC Exercise / conversionClass A Common Stock 670 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-110732 · ownership.xml · nonDerivative · entry 1

Dolan Ryan Thomas · CIK 0001794486 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,146

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") was granted on March 12, 2025 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 March 13, 2026. One-third of the RSUs are scheduled to vest and settle on March 15, 2027. The remaining one-third of the RSUs are scheduled to vest and settle on March 15, 2028.

Read SEC document
March 13, 2026 Filed Mar 17, 2026 20:05 UTC
Granville-Smith DavidExecutive Vice President
Exercise / conversionRestricted Stock Units · Derivative 6,704 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-110724 · ownership.xml · derivative · entry 3

Granville-Smith David · CIK 0001980544 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,410

Underlying: Class A Common Stock · 6,704 shares

Expires 2028-03-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") was granted on March 12, 2025 under the Sphere Entertainment Co. ("SPHR") 2020 Employee Stock Plan, as amended 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 March 13, 2026. One-third of the RSUs are scheduled to vest and settle on March 15, 2027. The remaining one-third of the RSUs are scheduled to vest and settle on March 15, 2028.

F1 · derivative.exercise_date: Each restricted stock unit ("RSU") was granted on March 12, 2025 under the Sphere Entertainment Co. ("SPHR") 2020 Employee Stock Plan, as amended 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 March 13, 2026. One-third of the RSUs are scheduled to vest and settle on March 15, 2027. The remaining one-third of the RSUs are scheduled to vest and settle on March 15, 2028.

Read SEC document
March 13, 2026 Filed Mar 17, 2026 20:05 UTC
Granville-Smith DavidExecutive Vice President
Tax withholdingClass A Common Stock 3,688 $105.70 $389,821.60
Disclosure

SEC source: 0001193125-26-110724 · ownership.xml · nonDerivative · entry 2

Granville-Smith David · CIK 0001980544 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,464

F2 · kind: Represents RSUs of SPHR withheld to satisfy tax withholding obligations in connection with the vesting and settlement of RSUs described in footnote 1, exempt under Rule 16b-3.

Read SEC document
March 13, 2026 Filed Mar 17, 2026 20:05 UTC
Granville-Smith DavidExecutive Vice President
Exercise / conversionClass A Common Stock 6,704 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-110724 · ownership.xml · nonDerivative · entry 1

Granville-Smith David · CIK 0001980544 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,152

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") was granted on March 12, 2025 under the Sphere Entertainment Co. ("SPHR") 2020 Employee Stock Plan, as amended 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 March 13, 2026. One-third of the RSUs are scheduled to vest and settle on March 15, 2027. The remaining one-third of the RSUs are scheduled to vest and settle on March 15, 2028.

Read SEC document
March 11, 2026 Filed Mar 13, 2026 16:05 UTC
Langer Robert H.EVP, CFO & Treasurer
GrantRestricted Stock Units · Derivative 7,527 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-106116 · ownership.xml · derivative · entry 1

Langer Robert H. · CIK 0002052906 · EVP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,527

Underlying: Class A Common Stock · 7,527 shares

Expires 2029-03-15

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") is granted under the Sphere Entertainment Co. 2020 Employee Stock Plan, as amended, and represents a right to receive one share of Class A Common Stock or the cash equivalent thereof.

F2 · derivative.exercise_date: The RSUs are scheduled to vest and settle in three equal installments on March 15, 2027, March 15, 2028 and March 15, 2029.

Read SEC document
March 11, 2026 Filed Mar 13, 2026 16:04 UTC
Koester JenniferPresident & COO, Sphere
GrantRestricted Stock Units · Derivative 19,371 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-106106 · ownership.xml · derivative · entry 1

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,371

Underlying: Class A Common Stock · 19,371 shares

Expires 2029-03-15

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") is granted under the Sphere Entertainment Co. 2020 Employee Stock Plan, as amended, and represents a right to receive one share of Class A Common Stock or the cash equivalent thereof.

F2 · derivative.exercise_date: The RSUs are scheduled to vest and settle in three equal installments on March 15, 2027, March 15, 2028 and March 15, 2029.

Read SEC document
March 11, 2026 Filed Mar 13, 2026 16:07 UTC GrantRestricted Stock Units · Derivative 2,391 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-106130 · ownership.xml · derivative · entry 1

Dolan Ryan Thomas · CIK 0001794486 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,391

Underlying: Class A Common Stock · 2,391 shares

Expires 2029-03-15

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") is granted under the Sphere Entertainment Co. 2020 Employee Stock Plan, as amended, and represents a right to receive one share of Class A Common Stock or the cash equivalent thereof.

F2 · derivative.exercise_date: The RSUs are scheduled to vest and settle in three equal installments on March 15, 2027, March 15, 2028 and March 15, 2029.

Read SEC document
March 11, 2026 Filed Mar 13, 2026 20:07 UTC
Winters Christopher J.SVP, Controller & PAO
GrantRestricted Stock Units · Derivative 1,273 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-106132 · ownership.xml · derivative · entry 1

Winters Christopher J. · CIK 0002097004 · SVP, Controller & PAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,273

Underlying: Class A Common Stock · 1,273 shares

Expires 2029-03-15

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") is granted under the Sphere Entertainment Co. 2020 Employee Stock Plan, as amended, and represents a right to receive one share of Class A Common Stock or the cash equivalent thereof.

F2 · derivative.exercise_date: The RSUs are scheduled to vest and settle in three equal installments on March 15, 2027, March 15, 2028 and March 15, 2029.

Read SEC document
March 11, 2026 Filed Mar 13, 2026 20:05 UTC
Granville-Smith DavidExecutive Vice President
GrantRestricted Stock Units · Derivative 7,527 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-106118 · ownership.xml · derivative · entry 1

Granville-Smith David · CIK 0001980544 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,527

Underlying: Class A Common Stock · 7,527 shares

Expires 2029-03-15

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") is granted under the Sphere Entertainment Co. 2020 Employee Stock Plan, as amended, and represents a right to receive one share of Class A Common Stock or the cash equivalent thereof.

F2 · derivative.exercise_date: The RSUs are scheduled to vest and settle in three equal installments on March 15, 2027, March 15, 2028 and March 15, 2029.

Read SEC document
February 17, 2026 Filed Feb 19, 2026 21:05 UTC
DOLAN JAMES LAWRENCEDirector · Executive Chairman and CEO · 10% owner · Member of 13(d) Group
Dolan Kristin ADirector · 10% owner
Exercise / conversionStock Options (Rights to Buy) · Derivative 54,315 $0.00 Strike: $67.33 $0.00
Disclosure

SEC source: 0001193125-26-059341 · ownership.xml · derivative · entry 10

DOLAN JAMES LAWRENCE · CIK 0000933028 · Director · Executive Chairman and CEO · 10% owner · Member of 13(d) Group

Dolan Kristin A · CIK 0001480991 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 54,315 shares

Expires 2026-02-25

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Each stock option was granted under the MSG Networks Inc. 2010 Employee Stock Plan, as amended and assumed by Sphere Entertainment Co. ("SPHR"), and represents the option to purchase Class A Common Stock. The options were exercised on February 17, 2026, through cashless exercise, and settled in cash.

Read SEC document
February 17, 2026 Filed Feb 19, 2026 21:05 UTC
DOLAN JAMES LAWRENCEDirector · Executive Chairman and CEO · 10% owner · Member of 13(d) Group
Dolan Kristin ADirector · 10% owner
Exercise / conversionStock Options (Rights to Buy) · Derivative 54,315 $0.00 Strike: $67.33 $0.00
Disclosure

SEC source: 0001193125-26-059341 · ownership.xml · derivative · entry 9

DOLAN JAMES LAWRENCE · CIK 0000933028 · Director · Executive Chairman and CEO · 10% owner · Member of 13(d) Group

Dolan Kristin A · CIK 0001480991 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 54,315 shares

Expires 2026-02-25

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Each stock option was granted under the MSG Networks Inc. 2010 Employee Stock Plan, as amended and assumed by Sphere Entertainment Co. ("SPHR"), and represents the option to purchase Class A Common Stock. The options were exercised on February 17, 2026, through cashless exercise, and settled in cash.

F8 · derivative.exercise_date: Two-thirds of the stock options were fully vested on the date of grant, July 9, 2021, and the remaining one-third vested on August 29, 2021.

Read SEC document
February 17, 2026 Filed Feb 19, 2026 21:05 UTC
DOLAN JAMES LAWRENCEDirector · Executive Chairman and CEO · 10% owner · Member of 13(d) Group
Dolan Kristin ADirector · 10% owner
Tax withholdingClass A Common Stock 21,670 $114.71 $2,485,765.70
Disclosure

SEC source: 0001193125-26-059341 · ownership.xml · nonDerivative · entry 6

DOLAN JAMES LAWRENCE · CIK 0000933028 · Director · Executive Chairman and CEO · 10% owner · Member of 13(d) Group

Dolan Kristin A · CIK 0001480991 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 978,468

F5 · shares: Represents shares of Class A Common Stock withheld to satisfy tax withholding obligations in connection with the exercise and settlement of stock options described in footnote 1, exempt under Rule 16b-3.

F2 · balance_after: Includes shares jointly held with spouse.

F3 · ownership.direct: Securities held directly by James L. Dolan, Kristin A. Dolan's spouse. Ms. Dolan disclaims beneficial ownership of these securities, and this filing shall not be deemed an admission that Ms. Dolan is, for the purpose of Section 16 or for any other purpose, the beneficial owner of such securities.

Read SEC document
February 17, 2026 Filed Feb 19, 2026 21:05 UTC
DOLAN JAMES LAWRENCEDirector · Executive Chairman and CEO · 10% owner · Member of 13(d) Group
Dolan Kristin ADirector · 10% owner
Tax withholdingClass A Common Stock 63,761 $114.71 $7,314,024.31
Disclosure

SEC source: 0001193125-26-059341 · ownership.xml · nonDerivative · entry 5

DOLAN JAMES LAWRENCE · CIK 0000933028 · Director · Executive Chairman and CEO · 10% owner · Member of 13(d) Group

Dolan Kristin A · CIK 0001480991 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,000,138

F4 · shares: Represents shares of Class A Common Stock withheld to satisfy the exercise price in connection with the exercise of stock options described in footnote 1, exempt under Rule 16b-3.

F2 · balance_after: Includes shares jointly held with spouse.

F3 · ownership.direct: Securities held directly by James L. Dolan, Kristin A. Dolan's spouse. Ms. Dolan disclaims beneficial ownership of these securities, and this filing shall not be deemed an admission that Ms. Dolan is, for the purpose of Section 16 or for any other purpose, the beneficial owner of such securities.

Read SEC document
February 17, 2026 Filed Feb 19, 2026 21:05 UTC
DOLAN JAMES LAWRENCEDirector · Executive Chairman and CEO · 10% owner · Member of 13(d) Group
Dolan Kristin ADirector · 10% owner
Disposition to issuerClass A Common Stock 11,599.5 $114.71 $1,330,578.65
Disclosure

SEC source: 0001193125-26-059341 · ownership.xml · nonDerivative · entry 4

DOLAN JAMES LAWRENCE · CIK 0000933028 · Director · Executive Chairman and CEO · 10% owner · Member of 13(d) Group

Dolan Kristin A · CIK 0001480991 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,063,899

F1 · shares: Each stock option was granted under the MSG Networks Inc. 2010 Employee Stock Plan, as amended and assumed by Sphere Entertainment Co. ("SPHR"), and represents the option to purchase Class A Common Stock. The options were exercised on February 17, 2026, through cashless exercise, and settled in cash.

F2 · balance_after: Includes shares jointly held with spouse.

F3 · ownership.direct: Securities held directly by James L. Dolan, Kristin A. Dolan's spouse. Ms. Dolan disclaims beneficial ownership of these securities, and this filing shall not be deemed an admission that Ms. Dolan is, for the purpose of Section 16 or for any other purpose, the beneficial owner of such securities.

Read SEC document
February 17, 2026 Filed Feb 19, 2026 21:05 UTC
DOLAN JAMES LAWRENCEDirector · Executive Chairman and CEO · 10% owner · Member of 13(d) Group
Dolan Kristin ADirector · 10% owner
Disposition to issuerClass A Common Stock 11,599.5 $114.71 $1,330,578.65
Disclosure

SEC source: 0001193125-26-059341 · ownership.xml · nonDerivative · entry 3

DOLAN JAMES LAWRENCE · CIK 0000933028 · Director · Executive Chairman and CEO · 10% owner · Member of 13(d) Group

Dolan Kristin A · CIK 0001480991 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,075,498.5

F1 · shares: Each stock option was granted under the MSG Networks Inc. 2010 Employee Stock Plan, as amended and assumed by Sphere Entertainment Co. ("SPHR"), and represents the option to purchase Class A Common Stock. The options were exercised on February 17, 2026, through cashless exercise, and settled in cash.

F2 · balance_after: Includes shares jointly held with spouse.

F3 · ownership.direct: Securities held directly by James L. Dolan, Kristin A. Dolan's spouse. Ms. Dolan disclaims beneficial ownership of these securities, and this filing shall not be deemed an admission that Ms. Dolan is, for the purpose of Section 16 or for any other purpose, the beneficial owner of such securities.

Read SEC document
February 17, 2026 Filed Feb 19, 2026 21:05 UTC
DOLAN JAMES LAWRENCEDirector · Executive Chairman and CEO · 10% owner · Member of 13(d) Group
Dolan Kristin ADirector · 10% owner
Exercise / conversionClass A Common Stock 54,315 $67.33 $3,657,028.95
Disclosure

SEC source: 0001193125-26-059341 · ownership.xml · nonDerivative · entry 2

DOLAN JAMES LAWRENCE · CIK 0000933028 · Director · Executive Chairman and CEO · 10% owner · Member of 13(d) Group

Dolan Kristin A · CIK 0001480991 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,087,098

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Each stock option was granted under the MSG Networks Inc. 2010 Employee Stock Plan, as amended and assumed by Sphere Entertainment Co. ("SPHR"), and represents the option to purchase Class A Common Stock. The options were exercised on February 17, 2026, through cashless exercise, and settled in cash.

F2 · balance_after: Includes shares jointly held with spouse.

F3 · ownership.direct: Securities held directly by James L. Dolan, Kristin A. Dolan's spouse. Ms. Dolan disclaims beneficial ownership of these securities, and this filing shall not be deemed an admission that Ms. Dolan is, for the purpose of Section 16 or for any other purpose, the beneficial owner of such securities.

Read SEC document
February 17, 2026 Filed Feb 19, 2026 21:05 UTC
DOLAN JAMES LAWRENCEDirector · Executive Chairman and CEO · 10% owner · Member of 13(d) Group
Dolan Kristin ADirector · 10% owner
Exercise / conversionClass A Common Stock 54,315 $67.33 $3,657,028.95
Disclosure

SEC source: 0001193125-26-059341 · ownership.xml · nonDerivative · entry 1

DOLAN JAMES LAWRENCE · CIK 0000933028 · Director · Executive Chairman and CEO · 10% owner · Member of 13(d) Group

Dolan Kristin A · CIK 0001480991 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,032,783

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Each stock option was granted under the MSG Networks Inc. 2010 Employee Stock Plan, as amended and assumed by Sphere Entertainment Co. ("SPHR"), and represents the option to purchase Class A Common Stock. The options were exercised on February 17, 2026, through cashless exercise, and settled in cash.

F2 · balance_after: Includes shares jointly held with spouse.

F3 · ownership.direct: Securities held directly by James L. Dolan, Kristin A. Dolan's spouse. Ms. Dolan disclaims beneficial ownership of these securities, and this filing shall not be deemed an admission that Ms. Dolan is, for the purpose of Section 16 or for any other purpose, the beneficial owner of such securities.

Read SEC document
October 17, 2025 Filed Oct 21, 2025 16:05 UTC GrantRestricted Stock Units · Derivative 716 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-245088 · ownership.xml · derivative · entry 1

Dolan Ryan Thomas · CIK 0001794486 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,728

Underlying: Class A Common Stock · 716 shares

Expires 2028-03-15

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") is granted under the Sphere Entertainment Co. 2020 Employee Stock Plan, as amended, and represents a right to receive one share of Class A Common Stock or the cash equivalent thereof.

F2 · derivative.exercise_date: The RSUs will vest and settle in three equal installments on March 15, 2026, March 15, 2027 and March 15, 2028.

Read SEC document
September 15, 2025 Filed Sep 17, 2025 20:05 UTC
DOLAN JAMES LAWRENCEDirector · Executive Chairman and CEO · 10% owner · Member of 13(d) Group
Dolan Kristin ADirector · 10% owner
Exercise / conversionPerformance Restricted Stock Units · Derivative 98,750 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-206155 · ownership.xml · derivative · entry 10

DOLAN JAMES LAWRENCE · CIK 0000933028 · Director · Executive Chairman and CEO · 10% owner · Member of 13(d) Group

Dolan Kristin A · CIK 0001480991 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 98,750 shares

Expires 2025-09-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: Each performance restricted stock unit ("PSU") was granted on August 31, 2022 under the 2020 Employee Stock Plan and represents a right to receive one share of Class A Common Stock or the cash equivalent thereof. The Compensation Committee of the Board of Directors of SPHR deemed such PSUs earned at 100% of target on March 27, 2024. The PSUs vested and were settled on September 15, 2025.

F6 · derivative.exercise_date: Each performance restricted stock unit ("PSU") was granted on August 31, 2022 under the 2020 Employee Stock Plan and represents a right to receive one share of Class A Common Stock or the cash equivalent thereof. The Compensation Committee of the Board of Directors of SPHR deemed such PSUs earned at 100% of target on March 27, 2024. The PSUs vested and were settled on September 15, 2025.

Read SEC document
September 15, 2025 Filed Sep 17, 2025 20:05 UTC
DOLAN JAMES LAWRENCEDirector · Executive Chairman and CEO · 10% owner · Member of 13(d) Group
Dolan Kristin ADirector · 10% owner
Exercise / conversionRestricted Stock Units · Derivative 26,896 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-206155 · ownership.xml · derivative · entry 9

DOLAN JAMES LAWRENCE · CIK 0000933028 · Director · Executive Chairman and CEO · 10% owner · Member of 13(d) Group

Dolan Kristin A · CIK 0001480991 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,897

Underlying: Class A Common Stock · 26,896 shares

Expires 2026-09-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_price: Each RSU was granted on September 1, 2023 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 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.

F4 · derivative.exercise_date: Each RSU was granted on September 1, 2023 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 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.

Read SEC document
September 15, 2025 Filed Sep 17, 2025 20:05 UTC
DOLAN JAMES LAWRENCEDirector · Executive Chairman and CEO · 10% owner · Member of 13(d) Group
Dolan Kristin ADirector · 10% owner
Exercise / conversionRestricted Stock Units · Derivative 32,917 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-206155 · ownership.xml · derivative · entry 8

DOLAN JAMES LAWRENCE · CIK 0000933028 · Director · Executive Chairman and CEO · 10% owner · Member of 13(d) Group

Dolan Kristin A · CIK 0001480991 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 32,917 shares

Expires 2025-09-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") was granted on August 31, 2022 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 15, 2023. One-third of the RSUs vested and were settled on September 13, 2024. The remaining one-third of the RSUs vested and were settled on September 15, 2025.

F1 · derivative.exercise_date: Each restricted stock unit ("RSU") was granted on August 31, 2022 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 15, 2023. One-third of the RSUs vested and were settled on September 13, 2024. The remaining one-third of the RSUs vested and were settled on September 15, 2025.

Read SEC document
September 15, 2025 Filed Sep 17, 2025 20:05 UTC
DOLAN JAMES LAWRENCEDirector · Executive Chairman and CEO · 10% owner · Member of 13(d) Group
Dolan Kristin ADirector · 10% owner
Tax withholdingClass A Common Stock 48,493 $60.29 $2,923,642.97
Disclosure

SEC source: 0001193125-25-206155 · ownership.xml · nonDerivative · entry 5

DOLAN JAMES LAWRENCE · CIK 0000933028 · Director · Executive Chairman and CEO · 10% owner · Member of 13(d) Group

Dolan Kristin A · CIK 0001480991 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 978,468

F7 · kind: Represents PSUs of SPHR withheld to satisfy tax withholding obligations in connection with the vesting and settlement of PSUs described in footnote 6, exempt under Rule 16b-3.

F2 · balance_after: Includes shares held jointly with spouse.

F3 · ownership.direct: Securities held directly by James L. Dolan, Kristin A. Dolan's spouse, or jointly by James L. Dolan and Kristin A. Dolan. Ms. Dolan disclaims beneficial ownership of these securities beneficially owned or deemed to be beneficially owned by Mr. Dolan (other than securities held jointly with her spouse) and this report shall not be deemed to be an admission that she is, for purposes of Section 16 or for any other purpose, the beneficial owner of such securities.

Read SEC document
September 15, 2025 Filed Sep 17, 2025 20:05 UTC
DOLAN JAMES LAWRENCEDirector · Executive Chairman and CEO · 10% owner · Member of 13(d) Group
Dolan Kristin ADirector · 10% owner
Exercise / conversionClass A Common Stock 98,750 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-206155 · ownership.xml · nonDerivative · entry 4

DOLAN JAMES LAWRENCE · CIK 0000933028 · Director · Executive Chairman and CEO · 10% owner · Member of 13(d) Group

Dolan Kristin A · CIK 0001480991 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,026,961

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · price: Each performance restricted stock unit ("PSU") was granted on August 31, 2022 under the 2020 Employee Stock Plan and represents a right to receive one share of Class A Common Stock or the cash equivalent thereof. The Compensation Committee of the Board of Directors of SPHR deemed such PSUs earned at 100% of target on March 27, 2024. The PSUs vested and were settled on September 15, 2025.

F2 · balance_after: Includes shares held jointly with spouse.

F3 · ownership.direct: Securities held directly by James L. Dolan, Kristin A. Dolan's spouse, or jointly by James L. Dolan and Kristin A. Dolan. Ms. Dolan disclaims beneficial ownership of these securities beneficially owned or deemed to be beneficially owned by Mr. Dolan (other than securities held jointly with her spouse) and this report shall not be deemed to be an admission that she is, for purposes of Section 16 or for any other purpose, the beneficial owner of such securities.

Read SEC document
September 15, 2025 Filed Sep 17, 2025 20:05 UTC
DOLAN JAMES LAWRENCEDirector · Executive Chairman and CEO · 10% owner · Member of 13(d) Group
Dolan Kristin ADirector · 10% owner
Tax withholdingClass A Common Stock 30,534 $60.29 $1,840,894.86
Disclosure

SEC source: 0001193125-25-206155 · ownership.xml · nonDerivative · entry 3

DOLAN JAMES LAWRENCE · CIK 0000933028 · Director · Executive Chairman and CEO · 10% owner · Member of 13(d) Group

Dolan Kristin A · CIK 0001480991 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 928,211

F5 · kind: Represents RSUs of SPHR withheld to satisfy tax withholding obligations in connection with the vesting and settlement of RSUs described in footnotes 1 and 4, exempt under Rule 16b-3.

F2 · balance_after: Includes shares held jointly with spouse.

F3 · ownership.direct: Securities held directly by James L. Dolan, Kristin A. Dolan's spouse, or jointly by James L. Dolan and Kristin A. Dolan. Ms. Dolan disclaims beneficial ownership of these securities beneficially owned or deemed to be beneficially owned by Mr. Dolan (other than securities held jointly with her spouse) and this report shall not be deemed to be an admission that she is, for purposes of Section 16 or for any other purpose, the beneficial owner of such securities.

Read SEC document
September 15, 2025 Filed Sep 17, 2025 20:05 UTC
DOLAN JAMES LAWRENCEDirector · Executive Chairman and CEO · 10% owner · Member of 13(d) Group
Dolan Kristin ADirector · 10% owner
Exercise / conversionClass A Common Stock 26,896 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-206155 · ownership.xml · nonDerivative · entry 2

DOLAN JAMES LAWRENCE · CIK 0000933028 · Director · Executive Chairman and CEO · 10% owner · Member of 13(d) Group

Dolan Kristin A · CIK 0001480991 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 958,745

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · price: Each RSU was granted on September 1, 2023 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 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 · balance_after: Includes shares held jointly with spouse.

F3 · ownership.direct: Securities held directly by James L. Dolan, Kristin A. Dolan's spouse, or jointly by James L. Dolan and Kristin A. Dolan. Ms. Dolan disclaims beneficial ownership of these securities beneficially owned or deemed to be beneficially owned by Mr. Dolan (other than securities held jointly with her spouse) and this report shall not be deemed to be an admission that she is, for purposes of Section 16 or for any other purpose, the beneficial owner of such securities.

Read SEC document
September 15, 2025 Filed Sep 17, 2025 20:05 UTC
DOLAN JAMES LAWRENCEDirector · Executive Chairman and CEO · 10% owner · Member of 13(d) Group
Dolan Kristin ADirector · 10% owner
Exercise / conversionClass A Common Stock 32,917 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-206155 · ownership.xml · nonDerivative · entry 1

DOLAN JAMES LAWRENCE · CIK 0000933028 · Director · Executive Chairman and CEO · 10% owner · Member of 13(d) Group

Dolan Kristin A · CIK 0001480991 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 931,849

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") was granted on August 31, 2022 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 15, 2023. One-third of the RSUs vested and were settled on September 13, 2024. The remaining one-third of the RSUs vested and were settled on September 15, 2025.

F2 · balance_after: Includes shares held jointly with spouse.

F3 · ownership.direct: Securities held directly by James L. Dolan, Kristin A. Dolan's spouse, or jointly by James L. Dolan and Kristin A. Dolan. Ms. Dolan disclaims beneficial ownership of these securities beneficially owned or deemed to be beneficially owned by Mr. Dolan (other than securities held jointly with her spouse) and this report shall not be deemed to be an admission that she is, for purposes of Section 16 or for any other purpose, the beneficial owner of such securities.

Read SEC document
September 15, 2025 Filed Sep 17, 2025 16:05 UTC
Koester JenniferPresident & COO, Sphere
Exercise / conversionRestricted Stock Units · Derivative 8,269 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-206146 · ownership.xml · derivative · entry 7

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,539

Underlying: Class A Common Stock · 8,269 shares

Expires 2027-09-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: 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.

F2 · derivative.exercise_date: 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.

Read SEC document
September 15, 2025 Filed Sep 17, 2025 16:05 UTC
Koester JenniferPresident & COO, Sphere
Exercise / conversionRestricted Stock Units · Derivative 6,829 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-206146 · ownership.xml · derivative · entry 6

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,829

Underlying: Class A Common Stock · 6,829 shares

Expires 2026-09-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") was granted on April 22, 2024 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.

F1 · derivative.exercise_date: Each restricted stock unit ("RSU") was granted on April 22, 2024 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.

Read SEC document
September 15, 2025 Filed Sep 17, 2025 16:05 UTC
Koester JenniferPresident & COO, Sphere
Exercise / conversionRestricted Stock Units · Derivative 11,988 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-206146 · ownership.xml · derivative · entry 5

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,988

Underlying: Class A Common Stock · 11,988 shares

Expires 2026-09-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") was granted on April 22, 2024 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.

F1 · derivative.exercise_date: Each restricted stock unit ("RSU") was granted on April 22, 2024 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.

Read SEC document
September 15, 2025 Filed Sep 17, 2025 16:05 UTC
Koester JenniferPresident & COO, Sphere
Tax withholdingClass A Common Stock 13,826 $60.29 $833,569.54
Disclosure

SEC source: 0001193125-25-206146 · ownership.xml · nonDerivative · entry 4

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,472

F3 · kind: Represents RSUs of SPHR withheld to satisfy tax withholding obligations in connection with the vesting and settlement of RSUs described in footnotes 1 and 2, exempt under Rule 16b-3.

Read SEC document
September 15, 2025 Filed Sep 17, 2025 16:05 UTC
Koester JenniferPresident & COO, Sphere
Exercise / conversionClass A Common Stock 8,269 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-206146 · ownership.xml · nonDerivative · entry 3

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,298

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: 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.

Read SEC document
September 15, 2025 Filed Sep 17, 2025 16:05 UTC
Koester JenniferPresident & COO, Sphere
Exercise / conversionClass A Common Stock 6,829 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-206146 · ownership.xml · nonDerivative · entry 2

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,029

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") was granted on April 22, 2024 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.

Read SEC document
September 15, 2025 Filed Sep 17, 2025 16:05 UTC
Koester JenniferPresident & COO, Sphere
Exercise / conversionClass A Common Stock 11,988 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-206146 · ownership.xml · nonDerivative · entry 1

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,200

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") was granted on April 22, 2024 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.

Read SEC document
September 15, 2025 Filed Sep 17, 2025 20:05 UTC
Franco LauraEVP & General Counsel
Exercise / conversionRestricted Stock Units · Derivative 1,323 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-206148 · ownership.xml · derivative · entry 7

Franco Laura · CIK 0001769491 · EVP & General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,647

Underlying: Class A Common Stock · 1,323 shares

Expires 2027-09-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: 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 · derivative.exercise_date: 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.

Read SEC document
September 15, 2025 Filed Sep 17, 2025 20:05 UTC
Franco LauraEVP & General Counsel
Exercise / conversionRestricted Stock Units · Derivative 1,093 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-206148 · ownership.xml · derivative · entry 6

Franco Laura · CIK 0001769491 · EVP & General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,093

Underlying: Class A Common Stock · 1,093 shares

Expires 2026-09-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each RSU was granted on April 22, 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 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 · derivative.exercise_date: Each RSU was granted on April 22, 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 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.

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September 15, 2025 Filed Sep 17, 2025 20:05 UTC
Franco LauraEVP & General Counsel
Exercise / conversionRestricted Stock Units · Derivative 8,302 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-206148 · ownership.xml · derivative · entry 5

Franco Laura · CIK 0001769491 · EVP & General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,812

Underlying: Class A Common Stock · 8,302 shares

Expires 2027-09-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") was granted on April 22, 2024 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. 32% of the RSUs vested and were settled on September 13, 2024. 40% of the RSUs vested and were settled on September 15, 2025. 24% of the RSUs are scheduled to vest and settle on September 15, 2026. 4% of the RSUs are scheduled to vest and settle on September 15, 2027.

F1 · derivative.exercise_date: Each restricted stock unit ("RSU") was granted on April 22, 2024 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. 32% of the RSUs vested and were settled on September 13, 2024. 40% of the RSUs vested and were settled on September 15, 2025. 24% of the RSUs are scheduled to vest and settle on September 15, 2026. 4% of the RSUs are scheduled to vest and settle on September 15, 2027.

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September 15, 2025 Filed Sep 17, 2025 20:05 UTC
Franco LauraEVP & General Counsel
Tax withholdingClass A Common Stock 4,318 $60.29 $260,332.22
Disclosure

SEC source: 0001193125-25-206148 · ownership.xml · nonDerivative · entry 4

Franco Laura · CIK 0001769491 · EVP & General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,017

F4 · kind: Represents RSUs of SPHR withheld to satisfy tax withholding obligations in connection with the vesting and settlement of RSUs described in footnotes 1, 2 and 3, exempt under Rule 16b-3.

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September 15, 2025 Filed Sep 17, 2025 20:05 UTC
Franco LauraEVP & General Counsel
Exercise / conversionClass A Common Stock 1,323 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-206148 · ownership.xml · nonDerivative · entry 3

Franco Laura · CIK 0001769491 · EVP & General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,335

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · price: 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.

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September 15, 2025 Filed Sep 17, 2025 20:05 UTC
Franco LauraEVP & General Counsel
Exercise / conversionClass A Common Stock 1,093 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-206148 · ownership.xml · nonDerivative · entry 2

Franco Laura · CIK 0001769491 · EVP & General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,012

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: Each RSU was granted on April 22, 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 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.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.