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Koester Jennifer

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60079
SEC CIK
0002008791

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Sphere Entertainment Co.SPHR · Entity 3931President & COO, SphereSeptember 15, 2026September 17, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Sphere Entertainment Co.

Report date September 15, 2026 · Filed September 17, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class A Common StockSEC Table I · non-derivativeDirect54,207 Ending reported balance After 2026-09-15 transaction · row 6
6 source rows · reconciled sequence

Row 1 · 2026-09-15 · Exercise / conversion · Acquired 11,988 · Balance 42,906

F1: 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 vested and were settled on September 15, 2026.

Row 2 · 2026-09-15 · Exercise / conversion · Acquired 6,829 · Balance 49,735

F1: 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 vested and were settled on September 15, 2026.

Row 3 · 2026-09-15 · Exercise / conversion · Acquired 8,269 · Balance 58,004

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 vested and were settled on September 15, 2026. The remaining one-third of the RSUs are scheduled to vest and settle on September 15, 2027.

Row 4 · 2026-09-15 · Tax withholding · Disposed 13,826 · Balance 44,178

F3: 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.

Row 5 · 2026-09-15 · Exercise / conversion · Acquired 20,487 · Balance 64,665

F4: Each performance restricted stock unit ("PSU") 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. The Compensation Committee of the Board of Directors of SPHR deemed such PSUs earned at 100% of target. The PSUs vested and were settled on September 15, 2026.

Row 6 · 2026-09-15 · Tax withholding · Disposed 10,458 · Balance 54,207

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

Restricted Stock UnitsSEC Table II · derivative / convertible security · Expires 2026-09-15Direct0 Reported balance After 2026-09-15 transaction · row 7 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 7 · 2026-09-15 · Exercise / conversion · Disposed 11,988 · Balance 0

F1: 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 vested and were settled on September 15, 2026.

Restricted Stock UnitsSEC Table II · derivative / convertible security · Expires 2026-09-15Direct0 Reported balance After 2026-09-15 transaction · row 8 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 8 · 2026-09-15 · Exercise / conversion · Disposed 6,829 · Balance 0

F1: 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 vested and were settled on September 15, 2026.

Restricted Stock UnitsSEC Table II · derivative / convertible security · Expires 2027-09-15Direct8,270 Reported balance After 2026-09-15 transaction · row 9 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 9 · 2026-09-15 · Exercise / conversion · Disposed 8,269 · Balance 8,270

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 vested and were settled on September 15, 2026. The remaining one-third of the RSUs are scheduled to vest and settle on September 15, 2027.

Performance Restricted Stock UnitsSEC Table II · derivative / convertible security · Expires 2026-09-15Direct0 Reported balance After 2026-09-15 transaction · row 10 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 10 · 2026-09-15 · Exercise / conversion · Disposed 20,487 · Balance 0

F4: Each performance restricted stock unit ("PSU") 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. The Compensation Committee of the Board of Directors of SPHR deemed such PSUs earned at 100% of target. The PSUs vested and were settled on September 15, 2026.

Filing footnotes · ownership attribution and instrument terms

F1: 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 vested and were settled 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 vested and were settled 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 footnotes 1 and 2, exempt under Rule 16b-3.

F4: Each performance restricted stock unit ("PSU") 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. The Compensation Committee of the Board of Directors of SPHR deemed such PSUs earned at 100% of target. The PSUs vested and were settled on September 15, 2026.

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

Transaction history

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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 dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
September 15, 2026 Filed Sep 17, 2026 20:05 UTC Sphere Entertainment Co. SPHR · Entity 3931 Exercise / conversionPerformance Restricted Stock Units · Derivative 20,487 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-394321 · ownership.xml · derivative · entry 10

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 20,487 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 performance restricted stock unit ("PSU") 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. The Compensation Committee of the Board of Directors of SPHR deemed such PSUs earned at 100% of target. The PSUs vested and were settled on September 15, 2026.

F4 · derivative.exercise_date: Each performance restricted stock unit ("PSU") 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. The Compensation Committee of the Board of Directors of SPHR deemed such PSUs earned at 100% of target. The PSUs vested and were settled on September 15, 2026.

Read SEC document
September 15, 2026 Filed Sep 17, 2026 20:05 UTC Sphere Entertainment Co. SPHR · Entity 3931 Exercise / conversionRestricted Stock Units · Derivative 8,269 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-394321 · ownership.xml · derivative · entry 9

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,270

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 vested and were settled 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 vested and were settled 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, 2026 Filed Sep 17, 2026 20:05 UTC Sphere Entertainment Co. SPHR · Entity 3931 Exercise / conversionRestricted Stock Units · Derivative 6,829 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-394321 · ownership.xml · derivative · entry 8

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

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 vested and were settled 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 vested and were settled on September 15, 2026.

Read SEC document
September 15, 2026 Filed Sep 17, 2026 20:05 UTC Sphere Entertainment Co. SPHR · Entity 3931 Exercise / conversionRestricted Stock Units · Derivative 11,988 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-394321 · ownership.xml · derivative · entry 7

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

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 vested and were settled 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 vested and were settled on September 15, 2026.

Read SEC document
September 15, 2026 Filed Sep 17, 2026 20:05 UTC Sphere Entertainment Co. SPHR · Entity 3931 Tax withholdingClass A Common Stock 10,458 $144.12 $1,507,206.96
Disclosure

SEC source: 0001193125-26-394321 · ownership.xml · nonDerivative · entry 6

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,207

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

Read SEC document
September 15, 2026 Filed Sep 17, 2026 20:05 UTC Sphere Entertainment Co. SPHR · Entity 3931 Exercise / conversionClass A Common Stock 20,487 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-394321 · ownership.xml · nonDerivative · entry 5

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,665

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 performance restricted stock unit ("PSU") 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. The Compensation Committee of the Board of Directors of SPHR deemed such PSUs earned at 100% of target. The PSUs vested and were settled on September 15, 2026.

Read SEC document
September 15, 2026 Filed Sep 17, 2026 20:05 UTC Sphere Entertainment Co. SPHR · Entity 3931 Tax withholdingClass A Common Stock 13,826 $144.12 $1,992,603.12
Disclosure

SEC source: 0001193125-26-394321 · ownership.xml · nonDerivative · entry 4

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,178

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, 2026 Filed Sep 17, 2026 20:05 UTC Sphere Entertainment Co. SPHR · Entity 3931 Exercise / conversionClass A Common Stock 8,269 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-394321 · ownership.xml · nonDerivative · entry 3

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,004

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 vested and were settled 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, 2026 Filed Sep 17, 2026 20:05 UTC Sphere Entertainment Co. SPHR · Entity 3931 Exercise / conversionClass A Common Stock 6,829 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-394321 · ownership.xml · nonDerivative · entry 2

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,735

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 vested and were settled on September 15, 2026.

Read SEC document
September 15, 2026 Filed Sep 17, 2026 20:05 UTC Sphere Entertainment Co. SPHR · Entity 3931 Exercise / conversionClass A Common Stock 11,988 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-394321 · ownership.xml · nonDerivative · entry 1

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,906

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 vested and were settled on September 15, 2026.

Read SEC document
March 13, 2026 Filed Mar 17, 2026 16:05 UTC Sphere Entertainment Co. SPHR · Entity 3931 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 Sphere Entertainment Co. SPHR · Entity 3931 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 Sphere Entertainment Co. SPHR · Entity 3931 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 11, 2026 Filed Mar 13, 2026 16:04 UTC Sphere Entertainment Co. SPHR · Entity 3931 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
September 15, 2025 Filed Sep 17, 2025 16:05 UTC Sphere Entertainment Co. SPHR · Entity 3931 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 Sphere Entertainment Co. SPHR · Entity 3931 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 Sphere Entertainment Co. SPHR · Entity 3931 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 Sphere Entertainment Co. SPHR · Entity 3931 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 Sphere Entertainment Co. SPHR · Entity 3931 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.

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September 15, 2025 Filed Sep 17, 2025 16:05 UTC Sphere Entertainment Co. SPHR · Entity 3931 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.

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September 15, 2025 Filed Sep 17, 2025 16:05 UTC Sphere Entertainment Co. SPHR · Entity 3931 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.

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March 12, 2025 Filed Mar 14, 2025 16:05 UTC Sphere Entertainment Co. SPHR · Entity 3931 GrantRestricted Stock Units · Derivative 51,763 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-039408 · ownership.xml · derivative · entry 1

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,763

Underlying: Class A Common Stock · 51,763 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 are scheduled to vest and settle in three equal installments on March 15, 2026, March 15, 2027 and March 15, 2028.

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September 13, 2024 Filed Sep 17, 2024 17:00 UTC Sphere Entertainment Co. SPHR · Entity 3931 Exercise / conversionRestricted Stock Units · Derivative 6,829 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-107360 · ownership.xml · derivative · entry 5

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,658

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, 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 are scheduled to vest and settle 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, 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 are scheduled to vest and settle 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 13, 2024 Filed Sep 17, 2024 17:00 UTC Sphere Entertainment Co. SPHR · Entity 3931 Exercise / conversionRestricted Stock Units · Derivative 11,988 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-107360 · ownership.xml · derivative · entry 4

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,976

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, 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 are scheduled to vest and settle 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, 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 are scheduled to vest and settle 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 13, 2024 Filed Sep 17, 2024 17:00 UTC Sphere Entertainment Co. SPHR · Entity 3931 Tax withholdingClass A Common Stock 9,605 $42.23 $405,619.15
Disclosure

SEC source: 0000950170-24-107360 · ownership.xml · nonDerivative · entry 3

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,212

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.

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September 13, 2024 Filed Sep 17, 2024 17:00 UTC Sphere Entertainment Co. SPHR · Entity 3931 Exercise / conversionClass A Common Stock 6,829 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-107360 · ownership.xml · nonDerivative · entry 2

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,817

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, 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 are scheduled to vest and settle 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 13, 2024 Filed Sep 17, 2024 17:00 UTC Sphere Entertainment Co. SPHR · Entity 3931 Exercise / conversionClass A Common Stock 11,988 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-107360 · ownership.xml · nonDerivative · entry 1

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,988

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, 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 are scheduled to vest and settle 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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August 27, 2024 Filed Aug 29, 2024 16:05 UTC Sphere Entertainment Co. SPHR · Entity 3931 GrantRestricted Stock Units · Derivative 24,808 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-101853 · ownership.xml · derivative · entry 2

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,808

Underlying: Class A Common Stock · 24,808 shares

Expires 2027-09-15

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.

F3 · derivative.exercise_date: The RSUs are scheduled to vest and settle on September 15, 2027.

Read SEC document
August 27, 2024 Filed Aug 29, 2024 16:05 UTC Sphere Entertainment Co. SPHR · Entity 3931 GrantRestricted Stock Units · Derivative 24,808 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-101853 · ownership.xml · derivative · entry 1

Koester Jennifer · CIK 0002008791 · President & COO, Sphere

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,808

Underlying: Class A Common Stock · 24,808 shares

Expires 2027-09-15

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 September 15, 2025, September 15, 2026 and September 15, 2027.

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April 22, 2024 Filed Apr 24, 2024 16:15 UTC Sphere Entertainment Co. SPHR · Entity 3931 GrantPerformance Restricted Stock Units · Derivative 20,487 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-047591 · ownership.xml · derivative · entry 2

Koester Jennifer · CIK 0002008791 · President-Sphere Business Ops.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,487

Underlying: Class A Common Stock · 20,487 shares

Expires not disclosed

F3 · derivative.exercise_price: Each performance restricted stock unit ("PSU") represents a right to receive one share of Sphere Entertainment Co. (the "Issuer") Class A Common Stock or the cash equivalent thereof.

F4 · shares: Represents PSUs granted on April 22, 2024 that are no longer subject to performance-based vesting requirements as a result of the decision by the Compensation Committee of the Board of Directors of the Issuer to deem performance achieved at 100% of target.

F5 · derivative.exercise_date: The PSUs are scheduled to vest and settle on September 15, 2026.

F5 · derivative.expiration_date: The PSUs are scheduled to vest and settle on September 15, 2026.

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April 22, 2024 Filed Apr 24, 2024 16:15 UTC Sphere Entertainment Co. SPHR · Entity 3931 GrantRestricted Stock Units · Derivative 56,451 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-047591 · ownership.xml · derivative · entry 1

Koester Jennifer · CIK 0002008791 · President-Sphere Business Ops.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,451

Underlying: Class A Common Stock · 56,451 shares

Expires not disclosed

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 September 15, 2024, September 15, 2025 and September 15, 2026.

F2 · derivative.expiration_date: The RSUs will vest and settle in three equal installments on September 15, 2024, September 15, 2025 and September 15, 2026.

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February 05, 2024 Filed Feb 7, 2024 16:10 UTC Sphere Entertainment Co. SPHR · Entity 3931 GrantOptions (Right to Buy) · Derivative 158,334 $0.00 Strike: $50.67 $0.00
Disclosure

SEC source: 0000950170-24-012201 · ownership.xml · derivative · entry 3

Koester Jennifer · CIK 0002008791 · President-Sphere Business Ops.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 158,334

Underlying: Class A Common Stock · 158,334 shares

Expires 2033-10-20

F1 · shares: The stock options were granted on February 5, 2024 under the Sphere Entertainment Co. 2020 Employee Stock Plan, as amended, and represent the option to purchase Class A Common Stock.

F2 · derivative.exercise_date: The stock options will cliff vest on October 20, 2026 if Jennifer Koester has remained employed by, or provided services to, the Company or any of its subsidiaries through such date (subject to certain limited exceptions).

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February 05, 2024 Filed Feb 7, 2024 16:10 UTC Sphere Entertainment Co. SPHR · Entity 3931 GrantOptions (Right to Buy) · Derivative 158,333 $0.00 Strike: $45.60 $0.00
Disclosure

SEC source: 0000950170-24-012201 · ownership.xml · derivative · entry 2

Koester Jennifer · CIK 0002008791 · President-Sphere Business Ops.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 158,333

Underlying: Class A Common Stock · 158,333 shares

Expires 2033-10-20

F1 · shares: The stock options were granted on February 5, 2024 under the Sphere Entertainment Co. 2020 Employee Stock Plan, as amended, and represent the option to purchase Class A Common Stock.

F2 · derivative.exercise_date: The stock options will cliff vest on October 20, 2026 if Jennifer Koester has remained employed by, or provided services to, the Company or any of its subsidiaries through such date (subject to certain limited exceptions).

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February 05, 2024 Filed Feb 7, 2024 16:10 UTC Sphere Entertainment Co. SPHR · Entity 3931 GrantOptions (Right to Buy) · Derivative 158,333 $0.00 Strike: $42.23 $0.00
Disclosure

SEC source: 0000950170-24-012201 · ownership.xml · derivative · entry 1

Koester Jennifer · CIK 0002008791 · President-Sphere Business Ops.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 158,333

Underlying: Class A Common Stock · 158,333 shares

Expires 2033-10-20

F1 · shares: The stock options were granted on February 5, 2024 under the Sphere Entertainment Co. 2020 Employee Stock Plan, as amended, and represent the option to purchase Class A Common Stock.

F2 · derivative.exercise_date: The stock options will cliff vest on October 20, 2026 if Jennifer Koester has remained employed by, or provided services to, the Company or any of its subsidiaries through such date (subject to certain limited exceptions).

Read SEC document

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