VIST executes Series A buyback, adds 839,578 shares to treasury

Rhea-AI Filing Summary

Vista Energy announced a Series A share repurchase in which it bought 100,000 Series A shares at MXN 805.42 per share, for a total of approximately MXN 80,541,900 excluding fees and value-added tax. The company states these purchases were made under previously approved authority granted at its general ordinary shareholders meeting.

Following the repurchases, Vista reports 105,238,955 Series A shares outstanding and 839,578 Series A shares held in treasury derived from repurchases. The transactions were executed by Citi México Casa de Bolsa, S.A. de C.V., Grupo Financiero Citi México acting as broker. The disclosure was made in a Form 6-K and the company notes its securities trade on the NYSE and the Mexican Stock Exchange under tickers VIST and VISTA.

Positive

• Buyback executed under shareholder approval: 100,000 Series A shares repurchased in furtherance of prior authorization.
• Clear pricing and amount disclosed: Repurchase price of MXN 805.42 per share, total of approximately MXN 80,541,900 excluding fees and VAT.
• Post-transaction transparency: Company discloses updated Series A outstanding shares (105,238,955) and treasury shares (839,578).
• Third-party execution: Transactions were carried out by Citi México Casa de Bolsa, S.A. de C.V., indicating use of an established broker.

Negative

• None.

Insights

Financial Analyst

TL;DR The company executed a modest, approved Series A buyback, reducing outstanding shares and increasing treasury holdings.

The repurchase of 100,000 Series A shares for ~MXN 80.54 million is an explicit capital allocation action that reduces the number of shares outstanding and increases treasury stock. Because the filing provides only the transaction size, price per share, post-transaction share counts and the executing broker, there is limited information to assess magnitude relative to market capitalization or cash resources. The disclosure is relevant to earnings-per-share dynamics and capital structure but lacks context such as program size or funding source.

Corporate Governance Expert

TL;DR Repurchases followed shareholder authorization and were executed by a third-party broker, reflecting governance-compliant buyback activity.

The report states the repurchases were carried out pursuant to shareholder approval and executed through a recognized broker-dealer, which aligns with standard governance and market practice for buybacks. The filing documents the resulting outstanding and treasury share counts, which improves transparency. The report does not disclose authorization limits, timing of the broader program, or the funding approach, limiting a full assessment of governance implications or opportunistic timing.

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

Colonia 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 13, 2025

On August 12, 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 100,000 Series A shares of Vista, at a price of Mexican Pesos $805.42 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 $80,541,900. After giving effect to such repurchases, there were 105,238,955 Series A shares outstanding, and 839,578 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 13, 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) announce in the Form 6-K?

The company disclosed it repurchased 100,000 Series A shares at MXN 805.42 per share, totaling approximately MXN 80,541,900 excluding fees and VAT.

How many Series A shares are outstanding after the repurchase for VIST?

Following the repurchase, Vista reports 105,238,955 Series A shares outstanding and 839,578 Series A shares held in treasury derived from repurchases.

Was the share repurchase authorized by shareholders for Vista Energy (VIST)?

Yes. The company states the repurchases were made in furtherance of the approval granted at its general ordinary shareholders meeting.

Who executed the repurchase transactions for VIST?

The repurchases were executed by Citi México Casa de Bolsa, S.A. de C.V., Grupo Financiero Citi México acting as the broker.

What was the total cash cost of Vista Energy's repurchase program disclosed?

The disclosed total paid for the 100,000 Series A shares was approximately MXN 80,541,900, excluding fees and value-added tax.