X0508 4 2024-02-15 0001831283 LianBio LIAN 0001224962 PERCEPTIVE ADVISORS LLC 51 ASTOR PLACE, 10TH FLOOR NEW YORK NY 10003 1 0 1 0 0001249675 PERCEPTIVE LIFE SCIENCES MASTER FUND LTD 51 ASTOR PLACE, 10TH FLOOR NEW YORK NY 10003 1 0 1 0 0001164426 EDELMAN JOSEPH 51 ASTOR PLACE, 10TH FLOOR NEW YORK NY 10003 1 0 1 0 0 Ordinary Shares 2024-02-15 4 M 0 36300 2.52 A 36300 I See footnote Ordinary Shares 2024-02-15 4 F 0 19218 4.76 D 17082 I See footnote Ordinary Shares 2024-02-15 4 M 0 36300 2.52 A 36300 I See footnote Ordinary Shares 2024-02-15 4 F 0 19218 4.76 D 17082 I See footnote American Depository Shares 3728491 I See footnote Ordinary Shares 25368895 I See footnote Ordinary Shares 21653385 I See footnote Ordinary Shares 4330675 I See footnote Ordinary Shares 2477005 I See footnote Stock Option (Right to Buy) 2.52 2024-02-15 4 M 0 36300 0 D 2023-06-23 2032-06-23 Ordinary Shares 36300 0 I See Footnote Stock Option (Right to Buy) 2.52 2024-02-15 4 M 0 36300 0 D 2023-06-23 2032-06-23 Ordinary Shares 36300 0 I See Footnotes Represents securities held by Adam Stone. Mr. Stone is the Chief Investment Officer of Perceptive Advisors, LLC (the "Advisor"). The Advisor may be deemed to have an indirect pecuniary interest in the securities of the Issuer reported herein because the Advisor has the right to receive the director compensation provided in respect of Mr. Stone's board service through a partial management fee offset. Represents securities held by Konstanin Poukalov. Mr. Poukalov is affiliated with the Advisor. The Advisor may be deemed to have an indirect pecuniary interest in the securities of the Issuer reported herein because the Advisor has the right to receive the director compensation provided in respect of Mr. Poukalov's board service through a partial management fee offset. Each American Depositary Share represents one Ordinary Share of the Issuer. The securities are directly held by Perceptive Life Sciences Master Fund, Ltd. (the "Master Fund"). The Advisor serves as the investment advisor to the Master Fund. Joseph Edelman is the managing member of the Advisor. The Advisor and Mr. Edelman disclaim, for purposes of Section 16 of the Securities Exchange Act of 1934, beneficial ownership of such securities, except to the extent of his or its indirect pecuniary interest therein, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purposes. The securities are directly held by LEV LB Holdings, LP ("LEV LB"). LEV LB Holdings GP, LLC ("LEV LB LLC") is the manager of LEV LB. Mr. Edelman is the sole member of LEV LB LLC. LEV LB LLC and Mr. Edelman disclaim, for purposes of Section 16 of the Securities Exchange Act of 1934, beneficial ownership of such securities, except to the extent of his or its indirect pecuniary interest therein, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purposes. The securities are directly held by Perceptive Xontogeny Venture Fund, LP ("Perceptive Xontogeny"). Perceptive Venture Advisors, LLC (the "Venture Advisor") serves as the investment advisor to Perceptive Xontogeny and is an affiliate of the Advisor. Joseph Edelman is the managing member of the Advisor. The Venture Advisor, the Advisor and Mr. Edelman disclaim, for purposes of Section 16 of the Securities Exchange Act of 1934, beneficial ownership of such securities, except to the extent of his or its indirect pecuniary interest therein, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purposes. The securities are directly held by C2 Life Sciences LLC ("C2 Life"). The Advisor serves as the investment advisor to C2 Life. Joseph Edelman is the managing member of the Advisor. The Advisor and Mr. Edelman disclaim, for purposes of Section 16 of the Securities Exchange Act of 1934, beneficial ownership of such securities, except to the extent of his or its indirect pecuniary interest therein, and this report shall not be deemed an admission that they are the beneficial owner of such securities for purposes of Section 16 or for any other purposes. /s/ Joseph Edelman - for Perceptive Advisors LLC, By: Joseph Edelman, its managing member 2024-02-20 /s/ Joseph Edelman - for Perceptive Life Sciences Master Fund Ltd., By: Perceptive Advisors LLC, its investment manager, By: Joseph Edelman, its managing member 2024-02-20 /s/ Joseph Edelman 2024-02-20