Vista Energy cancels CEO's 305,895 stock options

The canceled options had vested and were exercisable through their stated expiration date.

Rhea-AI Filing Summary

Vista Energy, S.A.B. de C.V. (VIST) Chief Executive Officer Miguel Matias Galuccio reported the disposition of 305,895 employee stock options on October 2, 2026; the company canceled the options. They had an exercise price of $17.83 per share and an expiration date of February 23, 2033. Galuccio reported zero options following the transaction. A transaction price of $57.57 per share was reported.

Insider Trade Summary

Disposition: 305,895 shares

Disposition 1 txn

Insider Galuccio Miguel Matias

Role Chief Executive Officer

Type	Security	Shares	Price	Value
Disposition	Employee Stock Options (Right to Buy) F2, F1	305,895	$57.57	$17.61M

Holdings After Transaction: Employee Stock Options (Right to Buy) — 0 contracts (Direct)

Footnotes (2)

1. F1. Stock options vested and exercisable through the date indicated under "Expiration Date."
2. F2. The options were canceled by the company.

Key Figures

Employee stock options disposed: 305,895 options Transaction price: $57.57 per share Exercise price: $17.83 per share +2 more

5 metrics

Employee stock options disposed 305,895 options October 2, 2026

Transaction price $57.57 per share Reported for the option disposition

Exercise price $17.83 per share Employee stock options

Options following transaction 0 options Reported resulting position

Expiration date February 23, 2033 Employee stock options

Key Terms

Employee Stock Options (Right to Buy), vested and exercisable, Expiration Date

3 terms

Employee Stock Options (Right to Buy) financial

"Employee Stock Options (Right to Buy)"

vested and exercisable financial

"Stock options vested and exercisable through the date indicated"

Expiration Date financial

"through the date indicated under "Expiration Date.""

The expiration date is the deadline after which a financial contract, such as an option or a futures agreement, is no longer valid or can be exercised. It matters to investors because it determines the timeframe during which they can take action or benefit from the contract, similar to how a coupon or a food item has a limited period of usefulness. Once the expiration date passes, the contract loses its value or ability to be used.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many VIST stock options did Miguel Matias Galuccio dispose of?

Miguel Matias Galuccio reported the disposition of 305,895 employee stock options on October 2, 2026, and Vista Energy canceled them. The transaction price was reported as $57.57 per share.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/05/2026 - 09:00 PM Accepted by SEC EDGAR 10/05/2026 - 09:00 PM Learn about SEC filing dates

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^*

Galuccio Miguel Matias

(Last) (First) (Middle)

AVENIDA PASEO DE LA REFORMA 243,

FLOOR 18

(Street)

MEXICO CITY 06500

(City) (State) (Zip)

MEXICO

(Country)

2. Issuer Name and Ticker or Trading Symbol
Vista Energy, S.A.B. de C.V. [ VIST ]

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

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

2a. Foreign Trading Symbol
[BMV: VISTA]

3. Date of Earliest Transaction (Month/Day/Year)
10/02/2026

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
Employee Stock Options (Right to Buy)	$17.83	10/02/2026		D			305,895	(1)	02/23/2033	Series A Shares / American Depositary Shares	305,895	$57.57(2)	0	D

Explanation of Responses:

1. Stock options vested and exercisable through the date indicated under "Expiration Date."

2. The options were canceled by the company.

	/s/ Miguel Matias Galuccio	10/05/2026
	** 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)