Amendment: SEC Form SCHEDULE 13D/A filed by BridgeBio Pharma Inc.

Item 3 of the Schedule 13D is hereby amended and supplemented as follows: The response to Item 5(c) of this Amendment No. 8 is incorporated by reference herein. The source of funds used in making the purchases is the capital invested in the Funds by their investors.

Item 4 of the Schedule 13D is hereby amended and supplemented as follows: The response to Item 5(c) of this Amendment No. 8 is incorporated by reference herein.

Item 5(a) of the Schedule 13D is hereby amended and supplemented as follows: The information contained on each of the cover pages of this Schedule 13D and the information set forth or incorporated in Items 2, 3, 4 and 6 are hereby incorporated herein by reference. The percentage of outstanding shares of Common Stock that may be deemed to be beneficially owned by each Reporting Person is set forth on Line 13 of such Reporting Person's cover sheet. Such percentage was calculated for each Reporting Person based on 191,168,504 shares of Common Stock outstanding as of July 29, 2025, as reported in the Issuer's quarterly report on Form 10-Q filed with the Commission on August 5, 2025. VGEII has the authority to dispose of and vote the shares of Common Stock directly owned by it, which power may be exercised by its general partner, VGP, and by VGI, an affiliate of VGP, which provides managerial services to VGEII. VGEM has the authority to dispose of and vote the shares of Common Stock directly owned by it, which power may be exercised by its investment manager, VGP, and by VGI, an affiliate of VGP, which provides managerial services to VGEM. Viking Global Equities LP (a Delaware limited partnership) and Viking Global Equities III Ltd. (a Cayman Islands exempted company), through its investment in VGE III Portfolio Ltd. (a Cayman Islands exempted company), invest substantially all of their assets through VGEM. VLFM has the authority to dispose of and vote the shares of Common Stock directly owned by it, which power may be exercised by its investment manager, VLFGP, and by VGI, an affiliate of VLFGP, which provides managerial services to VLFM. Viking Long Fund LP (a Delaware limited partnership) and Viking Long Fund III Ltd. (a Cayman Islands exempted company), through its investment in Viking Long Fund Intermediate L.P. (a Cayman Islands limited partnership), invest substantially all of their assets through VLFM. Opportunities Fund has the authority to dispose of and vote the shares of Common Stock directly owned by it, which power may be exercised by its general partner, Opportunities Portfolio GP, and by VGI, an affiliate of Opportunities Portfolio GP, which provides managerial services to Opportunities Fund. Viking Global Opportunities LP (a Delaware limited partnership) and Viking Global Opportunities III LP (a Cayman Islands exempted limited partnership), through its investment in Viking Global Opportunities Intermediate LP (a Cayman Islands exempted limited partnership), invest substantially all of their assets in Viking Global Opportunities Master LP (a Cayman Islands exempted limited partnership), which in turn invests through Opportunities Fund. VGOL has the authority to dispose of and vote the shares of Common Stock directly owned by it, which power may be exercised by its general partner, Opportunities Portfolio GP, and by VGI, an affiliate of Opportunities Portfolio GP, which provides managerial services to VGOL. Viking Global Opportunities LP (a Delaware limited partnership) and Viking Global Opportunities III LP (a Cayman Islands exempted limited partnership), through its investment in Viking Global Opportunities Intermediate LP (a Cayman Islands exempted limited partnership), invest substantially all of their assets in Viking Global Opportunities Master LP (a Cayman Islands exempted limited partnership), which in turn invests through VGOL. VGI provides managerial services to the Funds. VGI has the power to direct the vote and disposition of the shares of Common Stock directly held by the Funds. Accordingly, VGI may be deemed to have beneficial ownership over any shares of Common Stock directly owned by the Funds. VGP serves as the general partner of VGEII and the investment manager to VGEM and has the power to direct the vote and disposition of the shares of Common Stock directly held by VGEII and VGEM. Accordingly, VGP may be deemed to have beneficial ownership over any shares of Common Stock directly owned by VGEII and VGEM. VLFGP serves as the investment manager of VLFM and has the power to direct the vote and disposition of the shares of Common Stock directly held by VLFM. Accordingly, VLFGP may be deemed to have beneficial ownership over any shares of Common Stock directly owned by VLFM. Opportunities Portfolio GP serves as the general partner of each of Opportunities Fund and VGOL and has the power to direct the vote and disposition of the shares of Common Stock directly held by Opportunities Fund and VGOL. Accordingly, Opportunities Portfolio GP may be deemed to have beneficial ownership over any shares of Common Stock directly owned by Opportunities Fund and VGOL. Opportunities GP serves as the sole member of Opportunities Portfolio GP and has the power to direct the vote and disposition of the shares of Common Stock controlled by Opportunities Portfolio GP, which consists of the shares of Common Stock directly held by Opportunities Fund and VGOL. Accordingly, Opportunities GP may be deemed to have beneficial ownership over any shares of Common Stock deemed beneficially owned by Opportunities Portfolio GP, consisting of any shares of Common Stock directly owned by Opportunities Fund and VGOL. Opportunities Parent serves as the sole member of Opportunities GP, which has the power to direct the vote and disposition of the shares of Common Stock controlled by Opportunities Portfolio GP, which consists of the shares of Common Stock directly held by Opportunities Fund and VGOL. Accordingly, Opportunities Parent may be deemed to have beneficial ownership over any shares of Common Stock deemed beneficially owned by Opportunities GP, consisting of any shares of Common Stock directly owned by Opportunities Fund and VGOL. Messrs. Halvorsen and Ott and Ms. Shabet, as Executive Committee Members of Viking Global Partners LLC (the general partner of VGI), VGP, VLFGP and Opportunities Parent, have shared authority to direct the voting and disposition of the shares of Common Stock beneficially owned by VGI, VGP, VLFGP and Opportunities Parent. Accordingly, each of Messrs. Halvorsen and Ott and Ms. Shabet may be deemed to have beneficial ownership over any shares of Common Stock deemed beneficially owned by VGI, VGP, VLFGP, Opportunities Parent and VGOL. Except as disclosed in this Amendment No. 8, none of the Reporting Persons beneficially owns any shares of Common Stock or has the right to acquire any shares of Common Stock. Except as disclosed in this Amendment No. 8, none of the Reporting Persons presently has the power to vote or to direct the vote or to dispose or direct the disposition of any shares of Common Stock that such Reporting Person may be deemed to beneficially own.

Item 5(b) of the Schedule 13D is hereby amended and supplemented as follows: The information contained on each of the cover pages of this Schedule 13D and the information set forth or incorporated in Items 2, 3, 4 and 6 are hereby incorporated herein by reference.

Item 5(c) of the Schedule 13D is hereby amended and supplemented as follows: Except for the transactions listed in Exhibit 99.8 of this Amendment No. 8, the Reporting Persons have not effected any transactions in the Common Stock since the filing of Amendment No. 7 on July 1, 2025.

Item 7 of the Schedule 13D is hereby amended and supplemented as follows: Exhibit 99.8 - Schedule of Transactions