X0306 4 2020-10-09 1 0001576280 Guardant Health, Inc. GH 0001782391 SVF Bluebird (Cayman) Ltd C/O WALKERS CORP LTD CAYMAN CORP CENTRE 27 HOSPITAL ROAD GEORGE TOWN GRAND CAYMAN E9 KY1-9008 CAYMAN ISLANDS 0 0 1 0 0001782460 SVF Enterprise (Cayman) Ltd C/O WALKERS CORP LTD CAYMAN CORP CENTRE 27 HOSPITAL ROAD GEORGE TOWN E9 KY1-9008 CAYMAN ISLANDS 0 0 1 0 0001782338 SVF Endurance (Cayman) Ltd C/O WALKERS CORP LTD CAYMAN CORP CENTRE 27 HOSPITAL ROAD, GEORGE TOWN GRAND CAYMAN E9 KY1-9008 CAYMAN ISLANDS 0 0 1 0 0001731509 SB INVESTMENT ADVISERS (UK) LTD 69 GROSVENOR STREET MAYFAIR, LONDON X0 W1K 3JP UNITED KINGDOM 0 0 1 0 0001755143 SOFTBANK VISION FUND (AIV M1) L.P. 251 LITTLE FALLS DRIVE WILMINGTON DE 19808 0 0 1 0 Common Stock 2020-10-09 4 S 0 7000000 101.082 D 7037960 I See footnotes These securities are held of record by SVF Bluebird (Cayman) Limited, which is a subsidiary of SVF Enterprise (Cayman) Limited. SVF Enterprise (Cayman) Limited is a subsidiary of SVF Endurance (Cayman) Limited. SVF Endurance (Cayman) Limited is a wholly owned subsidiary of SoftBank Vision Fund (AIV M1) L.P. SB Investment Advisers (UK) Limited has been appointed as alternative investment fund manager, or AIFM, of SoftBank Vision Fund (AIV M1) L.P., and is exclusively responsible for managing SoftBank Vision Fund (AIV M1) L.P. in accordance with the Alternative Investment Fund Managers Directive and is authorized and regulated by the UK Financial Conduct Authority accordingly. (continued to Fn. 2) (Continued from Fn.1) As AIFM of SoftBank Vision Fund (AIV M1) L.P., SB Investment Advisers (UK) Limited is exclusively responsible for making all decisions related to the acquisition, structuring, financing and disposal of SoftBank Vision Fund (AIV M1) L.P.'s Investments. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission that any reporting person is the beneficial owner of such shares for purposes of the Securities Exchange Act of 1934 or for any other purpose. SVF Bluebird (Cayman) Limited By: /s/ Karey Schreck, Alternate Director 2020-10-13 SB Investment Advisers (UK) Limited, Manager of SoftBank Vision Fund (AIV M1) L.P. By: /s/ Brian Wheeler, General Counsel 2020-10-13 SB Investment Advisers (UK) Limited By: /s/ Brian Wheeler, General Counsel 2020-10-13 SVF Enterprise (Cayman) Limited By: /s/ Karey Schreck, Alternate Director 2020-10-13 SVF Endurance (Cayman) Limited By: /s/ Karey Schreck, Alternate Director 2020-10-13