UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 6-K
Report of Foreign Private Issuer
Pursuant to Rule 27a-16 or 15d-16
under the Securities Exchange Act of 1934
For the month of October, 2025
Commission File Number: 001-38376
Central Puerto S.A.
(Exact name of registrant as specified in its charter)
Port Central S.A.
(Translation of registrant’s
name into English)
Avenida Thomas Edison 2701
C1104BAB Buenos Aires
Republic of Argentina
+54 (11) 4317-5000
(Address of principal executive offices)
Indicate by check mark whether the registrant files or
will file annual reports under cover Form 20-F or Form 40-F.
Form
20-F [X] Form 40-F [_]
Indicate by check mark if the registrant is submitting
the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):
Yes
[_] No [X]
Indicate by check mark if the registrant is submitting
the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):
Yes
[_] No [X]

BUENOS AIRES, October
23, 2025
COMISIÓN NACIONAL DE VALORES (“CNV”)
Sub-Management of Issuer Companies
25 de Mayo 175
City of Buenos Aires
Attn.: Management of Issuers
Present
BOLSAS Y MERCADOS ARGENTINOS S.A. (“BYMA”)
Sarmiento 299
City of Buenos Aires
Present
MERCADO ABIERTO ELECTRÓNICO (“MAE”)
San Martín 344
City of Buenos Aires
Present
Ref.: Relevant Event
To whom it may concern,
I am pleased to address you in my capacity
as Head of Market Relations of Central Puerto S.A. (the “Company”), in compliance with the provisions of Article 11, Section
II, Chapter I, Title II of the Rules of the National Securities Commission (N.T. 2013), to inform you that the Board of Directors of the
Company has resolved to modify the purchase price under the share repurchase program of the Company’s own shares, approved and disclosed
to the market on September 25 of this year.
Accordingly, please be advised that the new maximum purchase
price will be US$ 11 per American Depositary Receipt (“ADR”) on the New York Stock Exchange (“NYSE”) and up to
AR$ 1,750 per common share on Bolsas y Mercados Argentinos.
Yours sincerely,
Leonardo Marinaro
Head of Market Relations
Central Puerto S.A
Avda. Tomás A.
Edison 2701 – C1104BAB – Ciudad de Buenos Aires – Argentina
Teléfono (54
11) 4317 5000 – www.centralpuerto.com
SIGNATURES
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.
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Central Puerto S.A. |
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| Date: October 24, 2025 |
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By: |
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/s/ Leonardo
Marinaro |
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Name: |
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Leonardo Marinaro |
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Title: |
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Attorney-in-Fact |