| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | BBIO | Common Stock | Sale | -$52.5M | -1.5M | -5.63% | $35.00 | 25.1M | Jul 18, 2023 | See Explanation of Responses | F1, F2, F3, F4, F5 |
| Id | Content |
|---|---|
| F1 | All shares were sold on behalf of Viking Global Opportunities Illiquid Investments Sub-Master LP ("Opportunities Fund"). Viking Global Opportunities Portfolio GP LLC ("Opportunities Portfolio GP") is the general partner of Opportunities Fund. Viking Global Opportunities GP LLC ("Opportunities GP") is the sole member of Opportunities Portfolio GP. Viking Global Opportunities Parent GP LLC ("Parent") is the sole member of Opportunities GP. Because of the relationship between each of Opportunities Portfolio GP, Opportunities GP, Parent and Opportunities Fund, each of Opportunities Portfolio GP, Opportunities GP and Parent may be deemed to beneficially own the shares held directly by Opportunities Fund. |
| F2 | This amount includes 631,167 shares of Common Stock held directly by Viking Global Equities Master Ltd. ("VGEM"), 251,204 shares of Common Stock held directly by Viking Long Fund Master Ltd. ("VLFM"), and 24,238,620 shares of Common Stock held directly by Opportunities Fund. |
| F3 | Andreas Halvorsen, David C. Ott and Rose S. Shabet are Executive Committee members of certain management entities, including Viking Global Partners LLC, the general partner of Viking Global Investors LP ("VGI"), Viking Global Performance LLC ("VGP"), which provides managerial services to VGEM, Viking Long Fund GP LLC ("VLFGP"), which provides managerial services to VLFM, and Parent. VGI provides managerial services to various investment funds and vehicles, including VGEM, VLFM, and Opportunities Fund. |
| F4 | Because of the relationship between VGI and each of VGEM, VLFM and Opportunities Fund, VGI may be deemed to beneficially own the shares held directly by VGEM, VLFM and Opportunities Fund. Each of VGI, Mr. Halvorsen, Mr. Ott and Ms. Shabet may be deemed to beneficially own all of the securities reported on this form. |
| F5 | The Reporting Persons disclaim beneficial ownership of these securities except to the extent of their pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose. |
(6) The Reporting Persons are jointly filing this Form 4 pursuant to Rule 16a-3(j) under the Exchange Act. (7) Scott M. Hendler is signing on behalf of Mr. Halvorsen, Mr. Ott and Ms. Shabet, each individually and as an Executive Committee Member of VIKING GLOBAL PARTNERS LLC, on behalf of VIKING GLOBAL INVESTORS LP, and as an Executive Committee Member of VIKING GLOBAL OPPORTUNITIES PARENT GP LLC, on behalf of itself and VIKING GLOBAL OPPORTUNITIES GP LLC, VIKING GLOBAL OPPORTUNITIES PORTFOLIO GP LLC, and VIKING GLOBAL OPPORTUNITIES ILLIQUID INVESTMENTS SUB-MASTER LP, pursuant to authorization and designation letters dated February 9, 2021, which were filed with the Securities and Exchange Commission on June 7, 2021.