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Form 3 Vista Energy, S.A.B. de For: Mar 18 Filed by: Galuccio Miguel Matias

March 18, 2026 6:55 AM
FORM 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person *
Galuccio Miguel Matias
(Last) (First) (Middle)
AVENIDA PASEO DE LA REFORMA 243, PISO 18
(Street)
CIUDAD DE MEXICO CUAUHTEMOC 06500
(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026 		3. Issuer Name and Ticker or Trading Symbol
Vista Energy, S.A.B. de C.V. [ VIST ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
X Officer (give title below) Other (specify below)
Chief Executive Officer
 5. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Series A Shares 6,245,671 (1)
D
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year) 3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Stock Options (Right to Buy) (2) 02/23/2032 Series A Shares / American Depositary Shares ("ADSs") 281,186 7.05 D
Employee Stock Options (Right to Buy) (2) 02/23/2033 Series A Shares / ADSs 305,895 17.83 D
Employee Stock Options (Right to Buy) (2) 01/02/2034 Series A Shares / ADSs 149,304 29.66 D
Employee Stock Options (Right to Buy) (2) 01/02/2035 Series A Shares / ADSs 39,022 54.09 D
Employee Stock Options (Right to Buy) (3) 01/02/2027 01/02/2034 Series A Shares / ADSs 74,651 29.66 D
Employee Stock Options (Right to Buy) (3) 01/02/2027 01/02/2035 Series A Shares / ADSs 39,022 54.09 D
Employee Stock Options (Right to Buy) (3) 01/02/2028 01/02/2035 Series A Shares / ADSs 39,022 54.09 D
Employee Stock Options (Right to Buy) (3) 01/02/2027 01/02/2036 Series A Shares / ADSs 52,835 47.96 D
Employee Stock Options (Right to Buy) (3) 01/02/2028 01/02/2036 Series A Shares / ADSs 52,835 47.96 D
Employee Stock Options (Right to Buy) (3) 01/02/2029 01/02/2036 Series A Shares / ADSs 52,835 47.96 D
Employee Stock Options (Right to Buy) (3) 04/23/2028 04/23/2035 Series A Shares / ADSs 1,687,500 52.3 D
Restricted Stock Unit (4) (4) (4) Series A Shares / ADSs 155,111 (4) D
Performance Stock Unit (5) (5) (5) Series A Shares / ADSs 592,008 (5) D
Explanation of Responses:
1. 3,309,936 series A shares held directly and 2,935,735 series A shares represented by 2,935,735 American despositary shares. Each American depositary share respresents one series A share.
2. Stock Options vested and exercisable through the date indicated under "Expiration Date."
3. Stock Options will vest on the date indicated under "Date Exercisable," and are exercisable through the date indicated under "Expiration Date."
4. Each Restricted Stock Unit represents a contingent right to receive one series A share of the Company or the value thereof in cash. RSUs may vest commencing on the following dates, subject to the satisfaction of certain conditions: 83,924 RSUs on 01/02/2027, 45,993 RSUs on 01/02/2028 and 25,194 RSUs on 01/02/2029.
5. Each Performance Stock Unit (PSUs) represents a contingent right to receive one series A share of the Company or the value thereof in cash. PSUs may vest commencing on the following dates, subject to the satisfaction of certain conditions: 338,344 PSUs on 02/20/2027 and 253,664 PSUs on 02/26/2028.
/s/ Miguel Galuccio 03/18/2026
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

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