Vista Energy executes authorized buyback; treasury shares rise to 683,752

Rhea-AI Filing Summary

Vista Energy completed a small, authorized share repurchase under its previously approved program. The company bought 75,000 Series A shares at MXN 792.87 per share, for a total of approximately MXN 59,465,250 (excluding fees and VAT). After the transaction the company reports 105,394,781 Series A shares outstanding and 683,752 Series A shares held in treasury derived from repurchases.

The trades were executed by Citi México Casa de Bolsa. This action reduces the public float and increases treasury holdings by the repurchased amount, but the size of the buyback is small relative to the outstanding Series A share count.

Positive

• Repurchase executed under an approved shareholder program
• Trade execution handled by a major broker (Citi México)

Negative

• None.

Insights

Financial Analyst

Small, routine buyback with negligible impact on capitalization and EPS dilution.

The company repurchased 75,000 Series A shares at MXN 792.87 each, spending about MXN 59.47 million before fees and VAT. Given the post-transaction outstanding Series A base of 105,394,781 shares, the repurchase represents roughly 0.07% of the Series A share count, so the immediate impact on per-share metrics and market capitalization is immaterial. Execution through a major broker (Citi México) indicates adherence to standard market procedures.

Corporate Governance / Treasury Specialist

Transaction follows shareholder-approved program; operationally routine and low materiality.

The repurchase was carried out in furtherance of shareholder authorization and increased treasury holdings to 683,752 Series A shares. Engagement of an external broker (Citi México Casa de Bolsa) suggests the company used an established execution agent. Because the repurchased amount is a very small fraction of the outstanding Series A shares, this action appears more procedural than strategic in scale and unlikely to materially change capital structure or control considerations.

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 2025

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

Cuauhtémoc, 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 11, 2025

On August 8, 2025, 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 75,000 Series A shares of Vista, at a price of Mexican Pesos $792.87 per Series A share. These repurchases were made in furtherance of the approval granted at the general ordinary shareholders’ meeting held on April 9, 2025. The total amount of these Series A shares repurchases, excluding fees and value-added tax, was of approximately Mexican Pesos $59,465,250. After giving effect to such repurchases, there were 105,394,781 Series A shares outstanding, and 683,752 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 11, 2025

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

FAQ

What did Vista Energy (VIST) report in this 6-K?

Vista Energy reported the repurchase of 75,000 Series A shares executed under its approved share repurchase program.

At what price were the shares repurchased?

Shares were repurchased at MXN 792.87 per Series A share.

How much did the repurchase cost Vista Energy?

The total cost of the repurchase was approximately MXN 59,465,250, excluding fees and value-added tax.

How many Series A shares are outstanding after the repurchase?

After the repurchase there were 105,394,781 Series A shares outstanding.

How many Series A shares does Vista Energy hold in treasury?

The company reports 683,752 Series A shares held in treasury derived from repurchases.

Who executed the repurchase trades?

Vista Energy engaged Citi México Casa de Bolsa, S.A. de C.V., Grupo Financiero Citi México to execute the repurchases.