X0609 4 2026-10-23 0002029769 Oaktree Acquisition Corp. III Life Sciences OACC 0002037181 Oaktree Acquisition Holdings III LS, LLC false 333 SOUTH GRAND AVENUE, 28TH FLOOR LOS ANGELES CA 90071 false false true false 0002029774 Oaktree Acquisition Holdings III LS GP, Ltd. false 333 SOUTH GRAND AVENUE, 28TH FLOOR LOS ANGELES CA 90071 false false true false 0000949509 OAKTREE CAPITAL MANAGEMENT LP false C/O OAKTREE CAPITAL MANAGEMENT, L.P. 333 SOUTH GRAND AVENUE, 28TH FLOOR LOS ANGELES CA 90071 false false true false 0001831013 Oaktree Capital Management GP, LLC false C/O OAKTREE CAPITAL MANAGEMENT, L.P. 333 SOUTH GRAND AVENUE, 28TH FLOOR LOS ANGELES CA 90071 false false true false 0001790787 Oaktree Capital Holdings, LLC false C/O OAKTREE CAPITAL MANAGEMENT, L.P. 333 SOUTH GRAND AVENUE, 28TH FLOOR LOS ANGELES CA 90071 false false true false false Class A Ordinary Shares 2026-10-23 4 C false 4798758 A 5382739 D Class B Ordinary Shares 2026-10-23 4 C false 4798758 0 D Class A Ordinary Shares 4798758 1000 D Class B ordinary shares are automatically convertible into Class A ordinary shares at the time of the Issuer's initial business combination on a one-for-one basis or earlier at the option of the holder. The reported securities are directly held by Oaktree Acquisition Holdings III LS, LLC ("Holdings"). The managing member of Holdings is Oaktree Acquisition Holdings III LS GP, Ltd. ("Holdings GP"). The director of Holdings GP is Oaktree Capital Management, L.P. ("OCM"). The general partner of OCM is Oaktree Capital Management GP, LLC ("OCM GP"). The sole managing member of OCM GP is Oaktree Capital Holdings, LLC. Each of the Reporting Persons disclaims beneficial ownership of the reported securities except to the extent of their respective pecuniary interest therein and the filing of this Statement shall not be construed as an admission that any such Reporting Person is the beneficial owner of the reported securities covered by this Statement. Oaktree Acquisition Holdings III LS, LLC, By: Oaktree Acquisition Holdings III LS GP, Ltd., its Managing Member, By: Oaktree Capital Management, L.P., its Director, By: /s/ Henry Orren, Managing Director 2026-10-23 Oaktree Acquisition Holdings III LS GP, Ltd., By: Oaktree Capital Management, L.P., its Director, By: /s/ Henry Orren, Managing Director 2026-10-23 Oaktree Capital Management, L.P., By: /s/ Henry Orren, Managing Director 2026-10-23 Oaktree Capital Management GP, LLC, By: /s/ Henry Orren, Managing Director 2026-10-23 Oaktree Capital Holdings, LLC, By: /s/ Henry Orren, Managing Director 2026-10-23