Vista Energy (NYSE: VIST) schedules Jan. 27, 2026 shareholders’ meeting

Rhea-AI Filing Summary

Vista Energy, S.A.B. de C.V. is convening an Ordinary General Shareholders’ meeting to be held at 11:00 AM (Mexico City time) on January 27, 2026. This report provides notice that the company has issued a formal call for the meeting.

The submission includes two exhibits: the official call for the meeting and additional information addressed to Vista shareholders related to that meeting. The company also reiterates that any forward-looking statements are subject to risks described in its Form 20-F and other reports available through the SEC, the Mexican Stock Exchange, the Mexican National Banking and Securities Commission and its corporate website.

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 December 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, 18^th 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 ☐

Contents of this Form 6-K

This Form 6-K for Vista Energy, S.A.B. de C.V. (“Vista” or the “Company”) contains the following exhibit:

Exhibit 1:		Call for an Ordinary General Shareholders’ meeting to be held at 11:00 AM (Mexico City time) on January 27, 2026.
Exhibit 2:		Information addressed to the shareholders of Vista related to the Ordinary General Shareholders’ meeting to be held on January 27, 2026.

Forward-Looking Statements

Any statements contained herein or in the attachments hereto regarding Vista that are not historical or current facts are forward-looking statements. These forward-looking statements convey Vista’s current expectations or forecasts of future events. Forward-looking statements regarding Vista involve known and unknown risks, uncertainties and other factors that may cause Vista’s actual results, performance or achievements to be materially different from any future results, performances or achievements expressed or implied by the forward-looking statements. Certain of these risks and uncertainties are described in the “Risk Factors”, “Forward-Looking Statements” and other applicable sections of Vista’s annual report filed with the United States Securities and Exchange Commission (“SEC”) on Form 20-F and other applicable filings with the SEC and Vista’s latest annual report available on the Mexican Stock Exchange’s (Bolsa Mexicana de Valores, S.A.B. de C.V.) website: www.bmv.com.mx, the Mexican National Banking and Securities Commission (Comisión Nacional Bancaria y de Valores) website: www.gob.mx/cnbv and our website: www.vistaenergy.com.

Enquiries:

Investor Relations:

ir@vistaenergy.com

Argentina: +54 11 3754 8500

Mexico: +52 55 8647 0128

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: December 16, 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) disclose in this Form 6-K?

Vista Energy disclosed that it has issued a call for an Ordinary General Shareholders’ meeting and provided related information for shareholders as exhibits to the report.

When is Vista Energy's 2026 Ordinary General Shareholders' meeting scheduled?

The Ordinary General Shareholders’ meeting is scheduled for January 27, 2026 at 11:00 AM (Mexico City time).

What exhibits are included with Vista Energy's December 2025 Form 6-K?

The report includes two exhibits: Exhibit 1, the call for the Ordinary General Shareholders’ meeting on January 27, 2026, and Exhibit 2, information addressed to Vista shareholders related to that meeting.

Where does Vista Energy direct investors for detailed risk information?

Vista Energy refers investors to the “Risk Factors”, “Forward-Looking Statements” and other sections of its annual report on Form 20-F, other SEC filings, and its latest annual report available on the Mexican Stock Exchange, the Mexican National Banking and Securities Commission websites and www.vistaenergy.com.

How can investors contact Vista Energy's investor relations team?

Investors can contact Vista Energy investor relations by email at ir@vistaenergy.com, by phone in Argentina at +54 11 3754 8500, or in Mexico at +52 55 8647 0128.

Who signed Vista Energy's December 2025 Form 6-K?

The report was signed on behalf of Vista Energy by Alejandro Cherñacov, who is identified as the company’s Strategic Planning and Investor Relations Officer.