Six Flags (FUN) President & CEO John Reilly receives 159,847 RSUs under 2024 plan

Rhea-AI Filing Summary

Six Flags Entertainment Corporation reported an equity award to its President & CEO and Director, John Reilly. On 12/08/2025, he received 159,847 shares of common stock in the form of restricted stock units (RSUs) at a price of $0 per share, bringing his directly held beneficial ownership reported here to 159,847 shares.

The RSUs were granted under the company’s 2024 Omnibus Incentive Plan. Each RSU represents a contingent right to receive one share of common stock and will vest in three equal annual installments on each of the first three anniversaries of the grant date, conditioned on Mr. Reilly’s continued service.

Insider Trade Summary

Net Buyer: 159,847 shares

Net Buy 1 txn

Insider Reilly John T

Role President & CEO

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, par value $0.01 per share	159,847	$0.00	$0.00

Holdings After Transaction: Common Stock, par value $0.01 per share — 159,847 shares (Direct)

Footnotes (1)

1. F1. Award of restricted stock units ("RSUs") under the Issuer's 2024 Omnibus Incentive Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs will vest in three equal annual installments on each of the first three anniversaries of the grant date based on the continued service of the Reporting Person.

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Form 4 Insider Transactions: What Each Field Means →

Accepted by SEC EDGAR 12/09/2025 - 04:19 PM Learn about SEC filing dates

FAQ

What insider transaction did Six Flags (FUN) disclose in this Form 4?

The company disclosed that President & CEO and Director John Reilly received 159,847 restricted stock units (RSUs) of Six Flags common stock on 12/08/2025 at a price of $0 per share.

Who is the reporting person in the Six Flags (FUN) insider filing?

The reporting person is John Reilly, who serves as both a Director and the President & CEO of Six Flags Entertainment Corporation.

How many Six Flags (FUN) shares did John Reilly beneficially own after the reported transaction?

Following the reported grant, John Reilly beneficially owned 159,847 shares of Six Flags common stock directly, as shown in the filing.

What are the vesting terms of John Reilly’s Six Flags (FUN) RSU award?

The 159,847 RSUs will vest in three equal annual installments on each of the first three anniversaries of the 12/08/2025 grant date, based on Mr. Reilly’s continued service.

Under which plan were the Six Flags (FUN) RSUs granted to John Reilly?

The RSUs were granted under Six Flags Entertainment Corporation’s 2024 Omnibus Incentive Plan.

Does each RSU granted to John Reilly represent a share of Six Flags (FUN) stock?

Yes. Each RSU represents a contingent right to receive one share of Six Flags common stock, subject to vesting conditions.

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^*

Reilly John T

(Last) (First) (Middle)

C/O SIX FLAGS ENTERTAINMENT CORPORATION

8701 RED OAK BLVD

(Street)

CHARLOTTE NC 28217

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Six Flags Entertainment Corporation/NEW [ FUN ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
12/08/2025

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

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

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

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
Common Stock, par value $0.01 per share	12/08/2025		A		159,847(1)	A	$0	159,847	D

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

Explanation of Responses:

1. Award of restricted stock units ("RSUs") under the Issuer's 2024 Omnibus Incentive Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs will vest in three equal annual installments on each of the first three anniversaries of the grant date based on the continued service of the Reporting Person.

Remarks:

	/s/ John Reilly	12/09/2025
	** 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.