Daniel Kaufman reports 6.1% stake in AUNA (AUNA) via Schedule 13G

Rhea-AI Filing Summary

AUNA S.A. ownership filing: Daniel Kaufman reports beneficial ownership of 1,827,749 Class A Ordinary Shares, representing 6.1% of the class.

The filing cites 30,138,747 Class A Ordinary Shares outstanding as of April 9, 2026 from the issuer's 20-F. Kaufman reports sole voting and dispositive power over the shares.

Insights

Securities Compliance Attorney

Routine Schedule 13G shows a passive >5% holding with sole voting and dispositive power.

The filing states 1,827,749 shares and a 6.1% ownership stake, citing the issuer's disclosed outstanding share count as of April 9, 2026. The reporter signed as an individual investor.

The submission appears to follow reporting thresholds for passive investors exceeding 5%. Subsequent filings may clarify whether the position remains passive or converts to active status requiring different disclosure.

Key Figures

Beneficial ownership: 1,827,749 shares Percent of class: 6.1% Shares outstanding: 30,138,747 shares

3 metrics

Beneficial ownership 1,827,749 shares Class A Ordinary Shares reported by Daniel Kaufman

Percent of class 6.1% Based on 30,138,747 Class A shares outstanding as of <date>April 9, 2026</date>

Shares outstanding 30,138,747 shares Class A Ordinary Shares outstanding as of <date>April 9, 2026</date> (source: issuer 20-F)

Key Terms

Schedule 13G, beneficially owned, sole dispositive power

3 terms

Schedule 13G regulatory

"Item 2. | (a) | Name of person filing: Daniel Kaufman"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

beneficially owned financial

"Item 4. | Ownership (a) | Amount beneficially owned: 1,827,749 Class A Ordinary Shares"

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

"Item 4. | (iii) Sole power to dispose or to direct the disposition of: 1,827,749"

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.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

AUNA S.A.

(Name of Issuer)

Class A Ordinary Shares, nominal value US$0.01 per share

(Title of Class of Securities)

L0415A103

(CUSIP Number)

05/22/2026

(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): L0415A103

1

Names of Reporting Persons

Daniel Kaufman

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

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 1,827,749.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 1,827,749.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,827,749.00

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)

6.1 %

12

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person: * Based on 30,138,747 Class A Ordinary Shares outstanding as of April 9, 2026, as disclosed in the Issuer's Annual Report on Form 20-F for the fiscal year ended December 31, 2025, filed with the SEC on April 28, 2026.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: AUNA S.A.
(b)	Address of issuer's principal executive offices: 6, rue Jean Monnet, L-2180 Luxembourg, Grand Duchy of Luxembourg
Item 2.
(a)	Name of person filing: Daniel Kaufman
(b)	Address or principal business office or, if none, residence: 2158 Park Boulevard, San Juan, Puerto Rico, 00913
(c)	Citizenship: United States
(d)	Title of class of securities: Class A Ordinary Shares, nominal value US$0.01 per share
(e)	CUSIP Number(s): L0415A103
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: 1,827,749 Class A Ordinary Shares.
(b)	Percent of class: 6.1%, based on 30,138,747 Class A Ordinary Shares outstanding as of April 9, 2026, as disclosed in the Issuer's Annual Report on Form 20-F for the fiscal year ended December 31, 2025.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 1,827,749
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 1,827,749
	(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.

Daniel Kaufman

Signature:	/s/ Daniel Kaufman
Name/Title:	Daniel Kaufman, Individual Investor
Date:	05/29/2026

Exhibit Information

None

FAQ

What stake in AUNA (AUNA) does Daniel Kaufman report?

Daniel Kaufman reports beneficial ownership of 1,827,749 Class A Ordinary Shares, equal to 6.1% of the Class A shares. The percentage is calculated using 30,138,747 shares outstanding as of April 9, 2026.

Does Daniel Kaufman have voting control over his AUNA shares?

Yes. The filing states Kaufman has sole voting power for 1,827,749 shares and sole dispositive power for 1,827,749 shares, with no shared voting or dispositive power reported in the Schedule 13G.

What is the reference date for AUNA's outstanding shares used in the filing?

The filing uses the issuer's disclosed outstanding share count of 30,138,747 Class A Ordinary Shares as of April 9, 2026, taken from the company's Annual Report on Form 20-F for the fiscal year ended December 31, 2025.

What does a Schedule 13G filing by an individual investor indicate?

A Schedule 13G typically indicates a reported position by a passive investor or certain institutional holders. This filing shows Kaufman's reported 6.1% passive stake and sole control over the shares, per the filing's stated powers and signature date.