X0306 4 2020-06-03 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 2020-06-03 4 S 0 1600 30.0449 D 307116 D Stock Option (Right to Buy) 28.86 2020-06-03 4 A 0 196850 0.00 A 2030-06-02 Common Stock 196850 196850 D Restricted Stock Units 2020-06-03 4 A 0 27356 0.00 A Common Stock 27356 27356 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 $30.00 to $30.13 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 range set forth in this footnote. The Option will vest over approximately four years. 1/48th of the shares of Common Stock underlying the Option will vest on a monthly basis after June 3, 2020 (the "Vesting Commencement Date"), such that all of the shares underlying the Option will be vested on the date four (4) years after the Vesting Commencement Date, subject to the Reporting Person's continued Service Relationship (as defined in the Plan) with the Issuer or any of its subsidiaries through the applicable vesting date. Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs will vest approximately four years with a vesting commencement date of May 16, 2020 and have no expiration date. In general, 6.25% of the RSUs will vest on August 16, 2020 and 6.25% will vest in quarterly installments on the 16th day of February, May, August and November, subject to the Reporting Person's continued service with the Issuer or any of its subsidiaries through the applicable vesting date. Title: Secretary, Treasurer and Chief Financial Officer /s/ Tara Condon, Attorney-in-Fact 2020-06-05