Vista Energy repurchases 30,000 Series A shares

After the repurchases, 110,587,402 Series A shares were outstanding and 1,714,351 Series A shares were held in treasury.

Available on EDGAR 11/09/2026 - 06:55 AM EST Accepted by SEC EDGAR 11/09/2026 - 06:55 AM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Vista Energy, S.A.B. de C.V. repurchased 30,000 Series A shares on November 6, 2026, at Mexican Pesos $1,068.97 per share. The repurchases totaled approximately Mexican Pesos $32,069,100, excluding fees and value-added tax, and were made under approval granted at the April 28, 2026 general ordinary shareholders’ meeting. After the repurchases, 110,587,402 Series A shares were outstanding and 1,714,351 Series A shares were held in treasury. Citi México Casa de Bolsa, S.A. de C.V., Grupo Financiero Citi México executed the repurchases.

Key Figures

Series A shares repurchased: 30,000 shares Repurchase price: Mexican Pesos $1,068.97 per Series A share Total repurchase amount: Approximately Mexican Pesos $32,069,100 +2 more

5 metrics

Series A shares repurchased 30,000 shares November 6, 2026

Repurchase price Mexican Pesos $1,068.97 per Series A share Repurchases on November 6, 2026

Total repurchase amount Approximately Mexican Pesos $32,069,100 Excluding fees and value-added tax

Series A shares outstanding 110,587,402 shares After giving effect to the repurchases

Series A shares held in Treasury 1,714,351 shares After giving effect to the repurchases

Key Terms

shares outstanding, held in Treasury, value-added tax

3 terms

shares outstanding financial

"110,587,402 Series A shares outstanding"

Shares outstanding are the total number of a company’s stock units held by all shareholders, including institutional investors and company insiders — think of them as the total number of slices of the company’s ownership pie. Investors use this number to calculate how much of the company each share represents, and it directly affects per-share measures like earnings per share, ownership percentage and valuation; when the slice count changes, an investor’s claim and the company’s per-share metrics change too.

held in Treasury financial

"1,714,351 Series A shares were held in Treasury"

value-added tax financial

"excluding fees and value-added tax"

A value-added tax (VAT) is a consumption tax charged on the extra value a business creates when producing or selling goods and services; businesses collect the tax at each step and remit it to the government, while the final cost is borne by the consumer. Investors should care because VAT affects companies’ pricing, profit margins, cash flow timing and compliance costs — like toll booths on a supply chain that can change demand and profitability.

FAQ

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

How many VIST Series A shares did Vista repurchase, and at what price?

Vista repurchased 30,000 Series A shares on November 6, 2026, at Mexican Pesos $1,068.97 per share.

What was the total cost of Vista’s VIST share repurchases?

The repurchases totaled approximately Mexican Pesos $32,069,100, excluding fees and value-added tax.

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

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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 November 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, November 9, 2026

On November 6, 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 30,000 Series A shares of Vista, at a price of Mexican Pesos $1,068.97 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 $32,069,100. After giving effect to such repurchases, there were 110,587,402 Series A shares outstanding, and 1,714,351 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: November 9, 2026

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