X0306 4 2021-08-16 0 0001743881 BridgeBio Pharma, Inc. BBIO 0001780030 STEPHENSON BRIAN C C/O BRIDGEBIO PHARMA, INC. 421 KIPLING STREET PALO ALTO CA 94301 0 1 0 0 See Remarks Common Stock 2021-08-16 4 M 0 2487 A 304156 D Common Stock 2021-08-16 4 F 0 1028 49.48 D 303128 D Restricted Stock Units 2021-08-16 4 M 0 1709 0.00 D Common Stock 1709 18808 D Restricted Stock Units 2021-08-16 4 M 0 778 0.00 D Common Stock 778 10893 D Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock. Represents number of shares of the Issuer's Common Stock withheld to satisfy the Reporting Person's tax obligation in connection with the vesting of 2,487 shares of Common Stock underlying the Reporting Person's RSUs. The RSUs vest in sixteen quarterly installments after May 16, 2020, subject to the Reporting Person's continued service with the Issuer or any of its subsidiaries through each vesting date, and have no expiration date. The RSUs vest in sixteen quarterly installments after February 16, 2021, subject to the Reporting Person's continued service with the Issuer or any of its subsidiaries through each vesting date, and have no expiration date. Title: Secretary, Treasurer and Chief Financial Officer /s/ Yi Ching Yau, Attorney-in-Fact 2021-08-18