Director Thomas Isiah gets 1,173 RSUs at Sphere Entertainment (NYSE: SPHR)

Rhea-AI Filing Summary

Thomas Isiah III reported acquisition or exercise transactions in this Form 4 filing.

Sphere Entertainment Co. director Thomas Isiah received a grant of 1,173 Restricted Stock Units (RSUs) under the company’s 2020 Stock Plan for Non-Employee Directors. Each RSU equals one share of Class A Common Stock or its cash equivalent. The RSUs are fully vested at grant and will settle in stock or cash 90 days after a separation from service, bringing his directly held RSU balance to 20,327 units.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Thomas Isiah III

Role null

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	1,173	$0.00	--

Holdings After Transaction: Restricted Stock Units — 20,327 shares (Direct, null)

Footnotes (1)

1. Each restricted stock unit ("RSU") is granted under the Sphere Entertainment Co. 2020 Stock Plan for Non-Employee Directors, as amended, and represents a right to receive one share of Class A Common Stock or the cash equivalent thereof. The RSUs are fully vested on the date of the grant and will be settled in stock or in cash on the first business day 90 days after a separation from service.

Key Figures

RSUs granted: 1,173 units Post-grant RSU holdings: 20,327 units Grant price: $0.00 per unit +1 more

4 metrics

RSUs granted 1,173 units Restricted Stock Units granted on June 10, 2026

Post-grant RSU holdings 20,327 units Total Restricted Stock Units directly held after transaction

Grant price $0.00 per unit Compensation award, no cash paid by reporting person

Settlement timing 90 days after separation RSUs settle in stock or cash after separation from service

Key Terms

Restricted Stock Units, Sphere Entertainment Co. 2020 Stock Plan for Non-Employee Directors, Class A Common Stock, separation from service

4 terms

Restricted Stock Units financial

"Each restricted stock unit ("RSU") is granted under the Sphere Entertainment Co. 2020 Stock Plan..."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Sphere Entertainment Co. 2020 Stock Plan for Non-Employee Directors financial

"Each restricted stock unit ("RSU") is granted under the Sphere Entertainment Co. 2020 Stock Plan for Non-Employee Directors, as amended..."

Class A Common Stock financial

"represents a right to receive one share of Class A Common Stock or the cash equivalent thereof."

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

separation from service financial

"will be settled in stock or in cash on the first business day 90 days after a separation from service."

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Thomas Isiah III

(Last) (First) (Middle)

TWO PENNSYLVANIA PLAZA

(Street)

NEW YORK NEW YORK 10121

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Sphere Entertainment Co. [ SPHR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/10/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(1)	06/10/2026		A		1,173		(2)	(2)	Class A Common Stock	1,173	$0	20,327	D

Explanation of Responses:

1. Each restricted stock unit ("RSU") is granted under the Sphere Entertainment Co. 2020 Stock Plan for Non-Employee Directors, as amended, and represents a right to receive one share of Class A Common Stock or the cash equivalent thereof.

2. The RSUs are fully vested on the date of the grant and will be settled in stock or in cash on the first business day 90 days after a separation from service.

	/s/ Mark C. Cresitello, Attorney-in-Fact for Isiah L. Thomas III	06/12/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did Sphere Entertainment (SPHR) director Thomas Isiah report in this Form 4?

Thomas Isiah reported receiving a grant of 1,173 Restricted Stock Units (RSUs) in Sphere Entertainment. These RSUs are part of his non-employee director compensation, adding to his existing equity-based stake in the company under the 2020 stock plan.

How many Sphere Entertainment (SPHR) RSUs does Thomas Isiah hold after this grant?

After the grant, Thomas Isiah holds a total of 20,327 Restricted Stock Units. This figure reflects his direct derivative holdings reported in the filing, representing future rights to Class A Common Stock or cash tied to these RSUs.

Are the new RSUs granted to Sphere Entertainment (SPHR) director Thomas Isiah vested?

Yes, the 1,173 RSUs granted to Thomas Isiah are fully vested on the grant date. Although vested immediately, they are not delivered until they settle in stock or cash after a qualifying separation from service event.

When will Thomas Isiah’s Sphere Entertainment (SPHR) RSUs be settled?

The RSUs will be settled in stock or cash on the first business day 90 days after a separation from service. Until that time, they remain as deferred units even though they are already fully vested at the grant date.

What does each Sphere Entertainment (SPHR) RSU granted to Thomas Isiah represent?

Each RSU represents the right to receive one share of Class A Common Stock or the cash equivalent. This means the company can choose to deliver either shares or cash of equal value when the RSUs are ultimately settled.

Under which plan were the Sphere Entertainment (SPHR) RSUs granted to Thomas Isiah?

The RSUs were granted under the Sphere Entertainment Co. 2020 Stock Plan for Non-Employee Directors, as amended. This plan provides equity-based compensation specifically tailored for board members who are not company employees.