Vista Energy cancels 61,179 officer stock options

The Strategic Planning and IRO officer's canceled options had a $17.83 exercise price and an expiration date of February 23, 2033.

Rhea-AI Filing Summary

Alejandro Chernacov reported disposition transactions in this Form 4 filing. Vista Energy, S.A.B. de C.V. (VIST) reported that its Strategic Planning and IRO officer, Alejandro Chernacov, had 61,179 employee stock options canceled by the company on October 2, 2026. The options had a $17.83 exercise price and an expiration date of February 23, 2033; his reported resulting position was zero options.

Insider Trade Summary

Disposition: 61,179 shares

Disposition 1 txn

Insider CHERNACOV ALEJANDRO

Role Strategic Planning and IRO

Type	Security	Shares	Price	Value
Disposition	Employee Stock Options (Right to Buy) F2, F1	61,179	$57.57	$3.52M

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 canceled: 61,179 options Exercise price: $17.83 per share Resulting position: 0 options +1 more

4 metrics

Employee stock options canceled 61,179 options October 2, 2026

Exercise price $17.83 per share Employee stock options

Resulting position 0 options After the reported cancellation

Expiration date February 23, 2033 Employee stock options

Key Terms

Employee Stock Options (Right to Buy), exercise price, vested and exercisable, American Depositary Shares

4 terms

Employee Stock Options (Right to Buy) financial

"the 61,179 employee stock options canceled by the company"

exercise price financial

"the options had a $17.83 exercise price"

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

vested and exercisable financial

"vested and exercisable through the expiration date"

American Depositary Shares financial

"the options' underlying security was Series A Shares / American Depositary Shares"

American depositary shares (ADSs) are a way for investors in the United States to buy shares of foreign companies without dealing with international markets directly. They represent ownership in a foreign company's stock and are traded on U.S. stock exchanges, making it easier for American investors to buy, sell, and own parts of companies from around the world.

FAQ

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

How many VIST options were canceled for Alejandro Chernacov?

Vista Energy's Strategic Planning and IRO officer, Alejandro Chernacov, reported 61,179 employee stock options canceled by the company on October 2, 2026, leaving a reported resulting position of zero options.

What were the exercise price and expiration date of Chernacov's VIST options?

The options had a $17.83 exercise price and an expiration date of February 23, 2033. The footnote states that they were vested and exercisable through the expiration date.

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^*

CHERNACOV ALEJANDRO

(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)
	Strategic Planning and IRO

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			61,179	(1)	02/23/2033	Series A Shares / American Depositary Shares	61,179	$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/ Alejandro Chernacov	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)