Vista Energy buys back 50,000 Series A shares

Vista Energy, S.A.B. de C.V. repurchased 50,000 Series A shares on August 4, 2026 at a price of Mexican Pesos $1,141.40 per share, for a total amount of approximately Mexican Pesos $57,070,000, excluding fees and value-added tax.

Rhea-AI Filing Summary

Vista Energy, S.A.B. de C.V. repurchased 50,000 Series A shares on August 4, 2026 at a price of Mexican Pesos $1,141.40 per share, for a total amount of approximately Mexican Pesos $57,070,000, excluding fees and value-added tax. These repurchases were carried out pursuant to approval granted at the general ordinary shareholders’ meeting held on April 28, 2026.

After this transaction, Vista Energy had 111,017,402 Series A shares outstanding, and 1,284,351 Series A shares held in Treasury derived from repurchases. Citi México Casa de Bolsa, S.A. de C.V., Grupo Financiero Citi México executed the Series A share repurchases on Vista Energy’s behalf.

Key Figures

Shares Repurchased: 50,000 Series A shares Repurchase Price Per Share: Mexican Pesos $1,141.40 Total Repurchase Amount: Mexican Pesos $57,070,000 +2 more

5 metrics

Shares Repurchased 50,000 Series A shares Repurchased on August 4, 2026

Repurchase Price Per Share Mexican Pesos $1,141.40 Price per Series A share repurchased

Total Repurchase Amount Mexican Pesos $57,070,000 Aggregate amount of the repurchases, excluding fees and VAT

Shares Outstanding After Repurchase 111,017,402 Series A shares Series A shares outstanding after the August 4, 2026 repurchases

Treasury Shares After Repurchase 1,284,351 Series A shares Series A shares held in Treasury derived from repurchases

Key Terms

Series A shares, Treasury, general ordinary shareholders’ meeting, Casa de Bolsa

4 terms

Series A shares financial

"repurchased 50,000 Series A shares of Vista"

Treasury financial

"1,284,351 Series A shares were held in Treasury"

The treasury is the department or area within a government or organization responsible for managing its money, finances, and financial strategies. It handles tasks like collecting revenue, paying bills, and planning for future financial needs, much like a household manages its budget. For investors, understanding the treasury is important because it influences interest rates, government spending, and overall economic stability.

general ordinary shareholders’ meeting financial

"approval granted at the general ordinary shareholders’ meeting"

Casa de Bolsa financial

"Vista engaged Citi México Casa de Bolsa, S.A. de C.V."

FAQ

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

What did Vista Energy (VIST) do on August 4, 2026 regarding its shares?

Vista Energy repurchased 50,000 Series A shares on August 4, 2026. The shares were bought at Mexican Pesos $1,141.40 per share, under a repurchase authorization approved at the April 28, 2026 general ordinary shareholders’ meeting.

At what price and total amount did Vista Energy (VIST) repurchase shares?

Vista Energy repurchased shares at Mexican Pesos $1,141.40 per Series A share. The total amount of these repurchases was approximately Mexican Pesos $57,070,000, excluding fees and value-added tax, as part of its approved share repurchase activity.

How many Vista Energy (VIST) shares are outstanding after the repurchase?

After the repurchase, Vista Energy had 111,017,402 Series A shares outstanding. Additionally, 1,284,351 Series A shares were held in Treasury, derived from prior repurchases executed by the company in the market.

How many Vista Energy (VIST) shares are currently held in treasury?

Vista Energy reported holding 1,284,351 Series A shares in Treasury. These treasury shares result from repurchases carried out by the company, including the most recent 50,000-share repurchase completed on August 4, 2026.

Who executed Vista Energy’s (VIST) August 2026 share repurchase?

The August 2026 Series A share repurchases were executed by Citi México Casa de Bolsa, S.A. de C.V., Grupo Financiero Citi México. This financial intermediary carried out the market transactions on behalf of Vista Energy under the shareholder-approved repurchase authorization.

Under what authorization did Vista Energy (VIST) buy back 50,000 shares?

The 50,000-share repurchase was made under approval granted at Vista Energy’s general ordinary shareholders’ meeting on April 28, 2026. That authorization enabled the company to conduct Series A share repurchases in the market.

How can investors contact Vista Energy (VIST) investor relations?

Investors can contact Vista Energy’s Investor Relations via email at ir@vistaenergy.com, by phone in Argentina at +54 11 3754 8500, or in Mexico at +52 55 1555 7104 for inquiries about the company and its securities.

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

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Available on EDGAR 08/05/2026 - 06:55 AM Accepted by SEC EDGAR 08/05/2026 - 06:55 AM Learn about SEC filing dates

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER SECURITIES EXCHANGE ACT OF 1934

For the month of August 2026

Commission File No. 001-39000

Vista Energy, S.A.B. de C.V.

(Exact Name of the Registrant as Specified in the Charter)

N.A.

(Translation of Registrant’s Name into English)

Torre Mapfre,

243 Paseo de la Reforma Avenue, 18th Floor

Colonia Renacimiento, Alcaldía Cuauhtémoc

06500, Mexico City

Mexico

(Address of Principal Executive Office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒   Form 40-F ☐

Mexico City, Mexico, August 5, 2026

On August 4, 2026, Vista Energy, S.A.B. de C.V. (“Vista”) (NYSE: VIST in the New York Stock Exchange; BMV: VISTA in the Mexican Stock Exchange) repurchased 50,000 Series A shares of Vista, at a price of Mexican Pesos $1,141.40 per Series A share. These repurchases were made in furtherance of the approval granted at the general ordinary shareholders’ meeting held on April 28, 2026. The total amount of these Series A shares repurchases, excluding fees and value-added tax, was of approximately Mexican Pesos $57,070,000. After giving effect to such repurchases, there were 111,017,402 Series A shares outstanding, and 1,284,351 Series A shares were held in Treasury derived from repurchases carried out by the Company. Vista engaged Citi México Casa de Bolsa, S.A. de C.V., Grupo Financiero Citi México to execute these Series A shares repurchases.

Enquiries:

Investor Relations:

ir@vistaenergy.com

Argentina: +54 11 3754 8500

Mexico: +52 55 1555 7104

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: August 5, 2026

VISTA ENERGY, S.A.B. DE C.V.
By:		/s/ Alejandro Cherñacov
Name:		Alejandro Cherñacov
Title:		Strategic Planning and Investor Relations Officer