Sec Form 3/A Filing - Zamora Leon Jesus @ AUNA S.A. - 2026-03-18

FORM 3/A Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Zamora Leon Jesus 2. Issuer Name and Ticker or Trading Symbol AUNA S.A. [ AUNA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) President (Last) (First) (Middle) 6, RUE JEAN MONNET 3. Date of Earliest Transaction (MM/DD/YY) 03/18/2026 (Street) LUXEMBOURGL-2180 4. If Amendment, Date Original Filed (MM/DD/YY) 03/18/2026 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Common Shares 30,710 D Class A Common Shares 10,100 I By Enfoca Ltd. ( 1 ) Class B Common Shares ( 2 ) 32,029,016 ( 3 ) I By Enfoca Entities ( 3 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Performance Share Option (Right to Buy) $ 12 ( 4 ) 03/21/2034 Class A Common Shares 2,217,528 D Performance Share Option (Right to Buy) $ 6.32 ( 5 ) 07/11/2035 Class A Common Shares 277,778 D Share Option (Right to Buy) $ 6.32 ( 6 ) 07/11/2035 Class A Common Shares 209,677 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Zamora Leon Jesus 6, RUE JEAN MONNET LUXEMBOURGL-2180 X President Signatures /s/ Carolina Brovelli, attorney-in-fact for Jesus Zamora Leon 06/01/2026 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Enfoca Ltd. is indirectly controlled by Mr. Zamora. ( 2 )Each Class B common share is convertible into one Class A common share: (i) at any time at the option of the holder of such Class B common share or (ii) automatically upon any transfer that is not a permitted transfer in accordance with the Issuer's articles of association. ( 3 )Consists of (i) 25,585,539 Class B common shares held of record by Enfoca Discovery 2, L.P. ("Enfoca Discovery 2"), (ii) 3,198,192 Class B common shares held of record by Enfoca Descubridor 1, Fondo de Inversion ("Enfoca Descubridor 1"), (iii) 3,198,192 Class B common shares held of record by Enfoca Descubridor 2, Fondo de Inversion ("Enfoca Descubridor 2"), (iv) 46,820 Class B common shares held of record by Enfoca Asset Management Ltd. ("Enfoca Asset Management") and (v) 273 Class B common shares held of record by Enfoca Sociedad Administradora de Fondos de Inversion S.A. ("ESAFI" and, together with Enfoca Discovery 2, Enfoca Descubridor 1, Enfoca Descubridor 2 and Enfoca Asset Management, the "Enfoca Entities"). The Enfoca Entities are indirectly controlled by Mr. Zamora. ( 4 )The performance share option will conditionally vest in three equal tranches in the event that the price of the Issuer's Class A common share equals or exceeds each of $12.00, $21.00 and $30.00 per share, respectively. ( 5 )The performance share option will conditionally vest in the event that the price of the Issuer's Class A common share equals or exceeds $9.48. ( 6 )This share option will vest annually in four equal installments beginning on July 11, 2026.

Remarks: This Amendment to the Initial Statement of Beneficial Ownership is being filed to amend the Initial Statement of Beneficial Ownership to correctly state that the Reporting Person directly owned 30,710 Class A common shares as of the date of the Original Filing and to report that the Reporting Person indirectly owned 10,100 Class A common shares through Enfoca Ltd. as of the date of the Original Filing.

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).

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