X0306 4 2019-07-03 0 0001731831 Eidos Therapeutics, Inc. EIDX 0001743881 BridgeBio Pharma, Inc. C/O EIDOS THERAPEUTICS, INC. 101 MONTGOMERY STREET, SUITE 2550 SAN FRANCISCO CA 94104 0 0 1 0 Common Stock 2019-07-03 4 P 0 882353 29.9005 A 24575501 I See Footnote The shares were purchased by BridgeBio Pharma, LLC, a wholly-owned subsidiary of the Reporting Person. BridgeBio Pharma, Inc. By: /s/ Neil Kumar, Name: Neil Kumar, Title: Chief Executive Officer 2019-07-08