X0306 4 2019-10-07 0 0001734517 Viela Bio, Inc. VIE 0000901832 ASTRAZENECA PLC 1 FRANCIS CRICK AVENUE CAMBRIDGE BIOMEDICAL CAMPUS CAMBRIDGE X0 CB2 0AA UNITED KINGDOM 0 0 1 0 0001362825 AstraZeneca UK LTD 1 FRANCIS CRICK AVENUE CAMBRIDGE BIOMEDICAL CAMPUS CAMBRIDGE X0 CB2 0AA UNITED KINGDOM 0 0 1 0 Common Stock 2019-10-07 4 C 0 14225324 A 14225334 I See footnote Common Stock 2019-10-07 4 P 0 425000 19.00 A 14650334 I See footnote Series A-1 Preferred Stock 2019-10-07 4 C 0 14225324 D Common Stock 14225324 0 I See footnote The shares of preferred stock automatically converted into common stock immediately upon completion of the Issuer's initial public offering on a 1-for-1 basis. All of these securities are owned by AstraZeneca UK Limited, which is a wholly-owned subsidiary of AstraZeneca PLC. AstraZeneca PLC may be deemed to beneficially own the shares held by AstraZeneca UK Limited, but disclaims beneficial ownership except to the extent of its pecuniary interest therein, if any. Reflects shares purchased in the Issuer's initial public offering. The shares of preferred stock were convertible into the Issuer's common stock in accordance with the Issuer's Restated Certificate of Incorporation, as amended, immediately upon completion of the Issuer's initial public offering. Not applicable. AstraZeneca PLC, By: /s/ Adrian Kemp 2019-10-09 AstraZeneca UK Limited, By: /s/ Adrian Kemp 2019-10-09