X0306 4 2020-01-02 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 2020-01-02 4 S 0 2295 32.5662 D 367621 D Common Stock 2020-01-02 4 S 0 4217 33.4731 D 363404 D Common Stock 2020-01-02 4 S 0 622 34.2326 D 362782 D Common Stock 2020-01-02 4 S 0 30 35.17 D 362752 D Common Stock 2020-01-03 4 S 0 100 31.94 D 362652 D Common Stock 2020-01-03 4 S 0 3536 32.3094 D 359116 D This transaction was effected pursuant to a Rule 10b5-1 sales plan adopted by the Reporting Person on [December 3, 2019]. Represents the weighted average sale price of the shares sold from $32.02 to $33.01 per share. The Reporting Person will provide, upon request by the Commission staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes 2, 4, 5 and 6. Includes 1,470 shares acquired by the Reporting Person on December 31, 2019 pursuant to the Issuer's Employee Stock Purchase Plan in a transaction exempt under Rule 16b-3. Represents the weighted average sale price of the shares sold from $33.07 to $34.065 per share. Represents the weighted average sale price of the shares sold from $34.08 to $34.40 per share. Represents the weighted average sale price of the shares sold from $32.00 to $32.99 per share. Secretary, Treasurer and Chief Financial Officer /s/ Brian Stephenson 2020-01-06