X0202 SCHEDULE 13G/A 0000796848 XXXXXXXX LIVE 2 Class A Ordinary Shares, $0.01 par value per share 04/14/2026 0001799207 AUNA S.A. L0415A103 6, RUE JEAN MONNET GRAND DUCHY OF LUXEMBOURG N4 L-2180 Rule 13d-1(b) TEACHER RETIREMENT SYSTEM OF TEXAS b TX 1504140.00 0.00 1504140.00 0.00 1504140.00 4.9 EP AUNA S.A. 6, RUE JEAN MONNET, GRAND DUCHY OF LUXEMBOURG, LUXEMBOURG, L-2180 Teacher Retirement System of Texas 4655 Mueller Blvd, Austin TX 78723 United States N EP As of the close of business on April 14, 2026, Teacher Retirement System of Texas owned 1,504,140 shares of the Issuer's Class A Ordinary Shares par value $0.01 per share (the Ordinary Shares). As of the close of business on April 14, 2026, Teacher Retirement System of Texas may be deemed to have beneficially owned 1,504,140 shares of the Issuer's Class A Ordinary Shares or 4.99% of the Issuer's Class A Ordinary Shares outstanding, which percentage was calculated based on 30,095,388 shares of the Issuer's Class A Ordinary Shares outstanding as of, December 31, 2025 as reported in the Issuer's Form 20-F as filed with the SEC on April 22, 2026. 1,504,140 0 1,504,140 0 Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and 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. TEACHER RETIREMENT SYSTEM OF TEXAS Christopher Bowlin 08/12/2026