Cantomi Uruguay holds 5.4% of Central Puerto (CEPU); 82.48M shares disclosed

Rhea-AI Filing Summary

Central Puerto S.A. Schedule 13G shows Cantomi Uruguay S.A. beneficially owns 82,481,755 common shares, representing 5.4% of the class. The filing states this stake includes 6,558,587 ADSs (equal to 65,585,870 common shares) plus 16,895,885 common shares. Percentage ownership is calculated on 1,513,770,222 common shares outstanding as of December 31, 2025.

Insights

Equity Ownership Analyst

Cantomi Uruguay holds a disclosed 5.4% stake in Central Puerto.

The filing reports 82,481,755 common shares beneficially owned, with sole voting and dispositive power over those shares. The stake calculation cites 1,513,770,222 shares outstanding as of December 31, 2025.

Holder decisions will determine any future activity; the filing is a routine beneficial-ownership disclosure under Schedule 13G and does not state any planned transactions.

Corporate Governance Specialist

Ownership is reported as sole control, not shared or indirect.

The form lists 82,481,755 shares with sole voting power and sole dispositive power, and reports the ADS conversion ratio explicitly (1 ADS = 10 common shares).

This Schedule 13G is informational; it does not indicate changes to board composition, agreements, or intent to influence management in the provided excerpt.

Key Figures

Beneficial ownership: 82,481,755 shares Percent of class: 5.4% ADSs held: 6,558,587 ADSs +4 more

7 metrics

Beneficial ownership 82,481,755 shares Amount beneficially owned reported on Schedule 13G

Percent of class 5.4% Percent of common shares outstanding

ADSs held 6,558,587 ADSs ADSs held by Cantomi as disclosed in footnote

ADS common-equivalent 65,585,870 common shares ADS conversion (1 ADS = 10 common shares)

Additional common shares 16,895,885 shares Common shares held in addition to ADSs

Shares outstanding 1,513,770,222 shares Shares outstanding as of December 31, 2025

CUSIP 155038201 CUSIP for the common shares class

Key Terms

ADS, beneficially owned, sole dispositive power, sole voting power

4 terms

ADS financial

"Consists of 6,558,587 American depositary shares ("ADSs"), representing an aggregate of 65,585,870 common shares"

Ads are paid promotional messages a company places across media — online, on TV, in print, or on social platforms — to attract customers, explain products, or shape public perception. For investors, ads matter because they drive sales growth, affect how much a company must spend to win customers, and influence brand strength and long-term value. Ads can also create regulatory or reputational risk if claims are misleading, which can affect profits and stock price.

beneficially owned regulatory

"Amount beneficially owned: 82,481,755 (b) Percent of class: 5.4%"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

sole dispositive power regulatory

"Sole power to dispose or to direct the disposition of: 82,481,755"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

sole voting power regulatory

"Sole power to vote or to direct the vote: 82,481,755"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

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

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Available on EDGAR 06/17/2026 - 06:39 PM Accepted by SEC EDGAR 06/17/2026 - 06:38 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Central Puerto S.A.

(Name of Issuer)

Common shares, par value Pesos 1.00 per share

(Title of Class of Securities)

155038201

(CUSIP Number)

06/10/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 155038201

1

Names of Reporting Persons

Cantomi Uruguay S.A.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

URUGUAY

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 82,481,755.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 82,481,755.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

82,481,755.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.4 %

12

Type of Reporting Person (See Instructions)

CO, FI

Comment for Type of Reporting Person: (1) Consists of (i) 6,558,587 American depositary shares ("ADSs"), representing an aggregate of 65,585,870 common shares, par value Ps. 1.00 per share ("Common Shares"), of Central Puerto S.A. (the "Issuer") and (i) 16,895,885 Common Shares. Each ADS represents ten Common Shares. (2) Percentage ownership based on 1,513,770,222 Common Shares outstanding as of December 31, 2025, as reported by the Issuer in its annual report on Form 20-F filed with the Securities and Exchange Commission on April 22, 2026.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Central Puerto S.A.
(b)	Address of issuer's principal executive offices: Avenida Thomas Edison 2701, Buenos Aires, Republic of Argentina C1104BAB
Item 2.
(a)	Name of person filing: Cantomi Uruguay S.A.
(b)	Address or principal business office or, if none, residence: 25 de Mayo 444 Of 401, CP 11.000, Montevideo, Uruguay
(c)	Citizenship: Uruguay
(d)	Title of class of securities: Common shares, par value Pesos 1.00 per share
(e)	CUSIP Number(s): 155038201
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 82,481,755
(b)	Percent of class: 5.4%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 82,481,755
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 82,481,755
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Cantomi Uruguay S.A.

Signature:	/s/ Andrea P. Torres
Name/Title:	Andrea P. Torres/Director
Date:	06/17/2026

Signature:	/s/ Julio C. Castro
Name/Title:	Julio C. Castro/Director
Date:	06/17/2026