ADPT

SEC source: 0000903423-19-000273 · vgpadaptive4.xml · derivative · entry 9

VIKING GLOBAL PERFORMANCE LLC · CIK 0001132625 · 10% owner

Viking Global Equities Master Ltd. · CIK 0001759530 · 10% owner

Viking Long Fund GP LLC · CIK 0001621607 · 10% owner

Viking Long Fund Master Ltd. · CIK 0001621596 · 10% owner

HALVORSEN OLE ANDREAS · CIK 0001133006 · 10% owner

Ott David C. · CIK 0001621842 · 10% owner

Shabet Rose Sharon · CIK 0001711393 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See explanation of responses

Disclosed balance after: 0

Underlying: Common Stock · 290,572 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: On July 1, 2019 in connection with the closing of the IPO, the shares of Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series F-1 Preferred Stock held by the Reporting Persons (defined below) automatically converted into shares of Common Stock on a one-to-one basis.

F2 · price: On July 1, 2019 in connection with the closing of the IPO, the shares of Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series F-1 Preferred Stock held by the Reporting Persons (defined below) automatically converted into shares of Common Stock on a one-to-one basis.

F2 · derivative.exercise_date: On July 1, 2019 in connection with the closing of the IPO, the shares of Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series F-1 Preferred Stock held by the Reporting Persons (defined below) automatically converted into shares of Common Stock on a one-to-one basis.

F2 · derivative.expiration_date: On July 1, 2019 in connection with the closing of the IPO, the shares of Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series F-1 Preferred Stock held by the Reporting Persons (defined below) automatically converted into shares of Common Stock on a one-to-one basis.

F3 · ownership.nature: O. 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"), Viking Long Fund GP LLC ("VLFGP") and Viking Global Opportunities GP LLC ("Opportunities GP"), the sole owner of Viking Global Opportunities Portfolio GP LLC ("Opportunities Portfolio GP"). VGI provides managerial services to various investment funds, including Viking Global Equities II LP ("VGE II"), Viking Global Equities Master Ltd. ("VGEM"), Viking Long Fund Master Ltd. ("VLFM") and Viking Global Opportunities Illiquid Investments Sub-Master LP ("Opportunities Fund," and together with VLFM, VGEM and VGE II, the "Viking Funds").

F4 · ownership.nature: VGP is the general partner of VGE II. Opportunities Portfolio GP is the general partner of Opportunities Fund. VLFGP serves as the investment manager of VLFM. Each of the Viking Funds, VGI, VGP, VLFGP, Opportunities Portfolio GP, Mr. Halvorsen, Mr. Ott and Ms. Shabet (collectively, the "Reporting Persons") may be deemed to beneficially own the shares reported on this form.

F5 · ownership.nature: VGI provides managerial services to (i) VGEM, which directly holds 26,578,963 shares of Common Stock; (ii) VGE II, which directly holds 542,429 shares of Common Stock; (iii) VLFM, which directly holds 9,850,878 shares of Common Stock; and (iv) Opportunities Fund, which directly holds 1,434,337 shares of Common Stock. Because of the relationship between VGI and the Viking Funds, VGI may be deemed to beneficially own the shares of Common Stock directly held by the Viking Funds.

F6 · ownership.nature: VGP is the general partner of VGE II and the investment manager of VGEM. Because of the relationships between VGP and VGE II and VGEM, respectively, VGP may be deemed to beneficially own the shares of Common Stock directly held by VGE II and VGEM.

F7 · ownership.nature: VLFGP serves as the investment manager of VLFM. Because of the relationship between VLFGP and VLFM, VLFGP may be deemed to beneficially own the shares of Common Stock directly held by VLFM.

F8 · ownership.nature: Opportunities Portfolio GP is the general partner of Opportunities Fund. Because of the relationship between Opportunities Portfolio GP and Opportunities Fund, Opportunities Portfolio GP may be deemed to beneficially own the shares of Common Stock held directly by Opportunities Fund. Opportunities GP is the sole owner of Opportunities Portfolio GP. Because of the relationship between Opportunities GP and Opportunities Portfolio GP, Opportunities GP may be deemed to beneficially own the shares of Common Stock held directly by Opportunities Fund.

F9 · ownership.nature: 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 or for any other purpose.

SEC source: 0000903423-19-000273 · vgpadaptive4.xml · derivative · entry 8

VIKING GLOBAL PERFORMANCE LLC · CIK 0001132625 · 10% owner

Viking Global Equities Master Ltd. · CIK 0001759530 · 10% owner

Viking Long Fund GP LLC · CIK 0001621607 · 10% owner

Viking Long Fund Master Ltd. · CIK 0001621596 · 10% owner

HALVORSEN OLE ANDREAS · CIK 0001133006 · 10% owner

Ott David C. · CIK 0001621842 · 10% owner

Shabet Rose Sharon · CIK 0001711393 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See explanation of responses

Disclosed balance after: 0

Underlying: Common Stock · 2,007,740 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: On July 1, 2019 in connection with the closing of the IPO, the shares of Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series F-1 Preferred Stock held by the Reporting Persons (defined below) automatically converted into shares of Common Stock on a one-to-one basis.

F2 · price: On July 1, 2019 in connection with the closing of the IPO, the shares of Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series F-1 Preferred Stock held by the Reporting Persons (defined below) automatically converted into shares of Common Stock on a one-to-one basis.

F2 · derivative.exercise_date: On July 1, 2019 in connection with the closing of the IPO, the shares of Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series F-1 Preferred Stock held by the Reporting Persons (defined below) automatically converted into shares of Common Stock on a one-to-one basis.

F2 · derivative.expiration_date: On July 1, 2019 in connection with the closing of the IPO, the shares of Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series F-1 Preferred Stock held by the Reporting Persons (defined below) automatically converted into shares of Common Stock on a one-to-one basis.

F3 · ownership.nature: O. 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"), Viking Long Fund GP LLC ("VLFGP") and Viking Global Opportunities GP LLC ("Opportunities GP"), the sole owner of Viking Global Opportunities Portfolio GP LLC ("Opportunities Portfolio GP"). VGI provides managerial services to various investment funds, including Viking Global Equities II LP ("VGE II"), Viking Global Equities Master Ltd. ("VGEM"), Viking Long Fund Master Ltd. ("VLFM") and Viking Global Opportunities Illiquid Investments Sub-Master LP ("Opportunities Fund," and together with VLFM, VGEM and VGE II, the "Viking Funds").

F4 · ownership.nature: VGP is the general partner of VGE II. Opportunities Portfolio GP is the general partner of Opportunities Fund. VLFGP serves as the investment manager of VLFM. Each of the Viking Funds, VGI, VGP, VLFGP, Opportunities Portfolio GP, Mr. Halvorsen, Mr. Ott and Ms. Shabet (collectively, the "Reporting Persons") may be deemed to beneficially own the shares reported on this form.

F5 · ownership.nature: VGI provides managerial services to (i) VGEM, which directly holds 26,578,963 shares of Common Stock; (ii) VGE II, which directly holds 542,429 shares of Common Stock; (iii) VLFM, which directly holds 9,850,878 shares of Common Stock; and (iv) Opportunities Fund, which directly holds 1,434,337 shares of Common Stock. Because of the relationship between VGI and the Viking Funds, VGI may be deemed to beneficially own the shares of Common Stock directly held by the Viking Funds.

F6 · ownership.nature: VGP is the general partner of VGE II and the investment manager of VGEM. Because of the relationships between VGP and VGE II and VGEM, respectively, VGP may be deemed to beneficially own the shares of Common Stock directly held by VGE II and VGEM.

F7 · ownership.nature: VLFGP serves as the investment manager of VLFM. Because of the relationship between VLFGP and VLFM, VLFGP may be deemed to beneficially own the shares of Common Stock directly held by VLFM.

F8 · ownership.nature: Opportunities Portfolio GP is the general partner of Opportunities Fund. Because of the relationship between Opportunities Portfolio GP and Opportunities Fund, Opportunities Portfolio GP may be deemed to beneficially own the shares of Common Stock held directly by Opportunities Fund. Opportunities GP is the sole owner of Opportunities Portfolio GP. Because of the relationship between Opportunities GP and Opportunities Portfolio GP, Opportunities GP may be deemed to beneficially own the shares of Common Stock held directly by Opportunities Fund.

F9 · ownership.nature: 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 or for any other purpose.

SEC source: 0000903423-19-000273 · vgpadaptive4.xml · derivative · entry 7

VIKING GLOBAL PERFORMANCE LLC · CIK 0001132625 · 10% owner

Viking Global Equities Master Ltd. · CIK 0001759530 · 10% owner

Viking Long Fund GP LLC · CIK 0001621607 · 10% owner

Viking Long Fund Master Ltd. · CIK 0001621596 · 10% owner

HALVORSEN OLE ANDREAS · CIK 0001133006 · 10% owner

Ott David C. · CIK 0001621842 · 10% owner

Shabet Rose Sharon · CIK 0001711393 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See explanation of responses

Disclosed balance after: 0

Underlying: Common Stock · 15,524,350 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: On July 1, 2019 in connection with the closing of the IPO, the shares of Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series F-1 Preferred Stock held by the Reporting Persons (defined below) automatically converted into shares of Common Stock on a one-to-one basis.

F2 · price: On July 1, 2019 in connection with the closing of the IPO, the shares of Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series F-1 Preferred Stock held by the Reporting Persons (defined below) automatically converted into shares of Common Stock on a one-to-one basis.

F2 · derivative.exercise_date: On July 1, 2019 in connection with the closing of the IPO, the shares of Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series F-1 Preferred Stock held by the Reporting Persons (defined below) automatically converted into shares of Common Stock on a one-to-one basis.

F2 · derivative.expiration_date: On July 1, 2019 in connection with the closing of the IPO, the shares of Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series F-1 Preferred Stock held by the Reporting Persons (defined below) automatically converted into shares of Common Stock on a one-to-one basis.

F3 · ownership.nature: O. 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"), Viking Long Fund GP LLC ("VLFGP") and Viking Global Opportunities GP LLC ("Opportunities GP"), the sole owner of Viking Global Opportunities Portfolio GP LLC ("Opportunities Portfolio GP"). VGI provides managerial services to various investment funds, including Viking Global Equities II LP ("VGE II"), Viking Global Equities Master Ltd. ("VGEM"), Viking Long Fund Master Ltd. ("VLFM") and Viking Global Opportunities Illiquid Investments Sub-Master LP ("Opportunities Fund," and together with VLFM, VGEM and VGE II, the "Viking Funds").

F4 · ownership.nature: VGP is the general partner of VGE II. Opportunities Portfolio GP is the general partner of Opportunities Fund. VLFGP serves as the investment manager of VLFM. Each of the Viking Funds, VGI, VGP, VLFGP, Opportunities Portfolio GP, Mr. Halvorsen, Mr. Ott and Ms. Shabet (collectively, the "Reporting Persons") may be deemed to beneficially own the shares reported on this form.

F5 · ownership.nature: VGI provides managerial services to (i) VGEM, which directly holds 26,578,963 shares of Common Stock; (ii) VGE II, which directly holds 542,429 shares of Common Stock; (iii) VLFM, which directly holds 9,850,878 shares of Common Stock; and (iv) Opportunities Fund, which directly holds 1,434,337 shares of Common Stock. Because of the relationship between VGI and the Viking Funds, VGI may be deemed to beneficially own the shares of Common Stock directly held by the Viking Funds.

F6 · ownership.nature: VGP is the general partner of VGE II and the investment manager of VGEM. Because of the relationships between VGP and VGE II and VGEM, respectively, VGP may be deemed to beneficially own the shares of Common Stock directly held by VGE II and VGEM.

F7 · ownership.nature: VLFGP serves as the investment manager of VLFM. Because of the relationship between VLFGP and VLFM, VLFGP may be deemed to beneficially own the shares of Common Stock directly held by VLFM.

F8 · ownership.nature: Opportunities Portfolio GP is the general partner of Opportunities Fund. Because of the relationship between Opportunities Portfolio GP and Opportunities Fund, Opportunities Portfolio GP may be deemed to beneficially own the shares of Common Stock held directly by Opportunities Fund. Opportunities GP is the sole owner of Opportunities Portfolio GP. Because of the relationship between Opportunities GP and Opportunities Portfolio GP, Opportunities GP may be deemed to beneficially own the shares of Common Stock held directly by Opportunities Fund.

F9 · ownership.nature: 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 or for any other purpose.

SEC source: 0000903423-19-000273 · vgpadaptive4.xml · derivative · entry 6

VIKING GLOBAL PERFORMANCE LLC · CIK 0001132625 · 10% owner

Viking Global Equities Master Ltd. · CIK 0001759530 · 10% owner

Viking Long Fund GP LLC · CIK 0001621607 · 10% owner

Viking Long Fund Master Ltd. · CIK 0001621596 · 10% owner

HALVORSEN OLE ANDREAS · CIK 0001133006 · 10% owner

Ott David C. · CIK 0001621842 · 10% owner

Shabet Rose Sharon · CIK 0001711393 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See explanation of responses

Disclosed balance after: 0

Underlying: Common Stock · 18,908,945 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: On July 1, 2019 in connection with the closing of the IPO, the shares of Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series F-1 Preferred Stock held by the Reporting Persons (defined below) automatically converted into shares of Common Stock on a one-to-one basis.

F2 · price: On July 1, 2019 in connection with the closing of the IPO, the shares of Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series F-1 Preferred Stock held by the Reporting Persons (defined below) automatically converted into shares of Common Stock on a one-to-one basis.

F2 · derivative.exercise_date: On July 1, 2019 in connection with the closing of the IPO, the shares of Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series F-1 Preferred Stock held by the Reporting Persons (defined below) automatically converted into shares of Common Stock on a one-to-one basis.

F2 · derivative.expiration_date: On July 1, 2019 in connection with the closing of the IPO, the shares of Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series F-1 Preferred Stock held by the Reporting Persons (defined below) automatically converted into shares of Common Stock on a one-to-one basis.

F3 · ownership.nature: O. 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"), Viking Long Fund GP LLC ("VLFGP") and Viking Global Opportunities GP LLC ("Opportunities GP"), the sole owner of Viking Global Opportunities Portfolio GP LLC ("Opportunities Portfolio GP"). VGI provides managerial services to various investment funds, including Viking Global Equities II LP ("VGE II"), Viking Global Equities Master Ltd. ("VGEM"), Viking Long Fund Master Ltd. ("VLFM") and Viking Global Opportunities Illiquid Investments Sub-Master LP ("Opportunities Fund," and together with VLFM, VGEM and VGE II, the "Viking Funds").

F4 · ownership.nature: VGP is the general partner of VGE II. Opportunities Portfolio GP is the general partner of Opportunities Fund. VLFGP serves as the investment manager of VLFM. Each of the Viking Funds, VGI, VGP, VLFGP, Opportunities Portfolio GP, Mr. Halvorsen, Mr. Ott and Ms. Shabet (collectively, the "Reporting Persons") may be deemed to beneficially own the shares reported on this form.

F5 · ownership.nature: VGI provides managerial services to (i) VGEM, which directly holds 26,578,963 shares of Common Stock; (ii) VGE II, which directly holds 542,429 shares of Common Stock; (iii) VLFM, which directly holds 9,850,878 shares of Common Stock; and (iv) Opportunities Fund, which directly holds 1,434,337 shares of Common Stock. Because of the relationship between VGI and the Viking Funds, VGI may be deemed to beneficially own the shares of Common Stock directly held by the Viking Funds.

F6 · ownership.nature: VGP is the general partner of VGE II and the investment manager of VGEM. Because of the relationships between VGP and VGE II and VGEM, respectively, VGP may be deemed to beneficially own the shares of Common Stock directly held by VGE II and VGEM.

F7 · ownership.nature: VLFGP serves as the investment manager of VLFM. Because of the relationship between VLFGP and VLFM, VLFGP may be deemed to beneficially own the shares of Common Stock directly held by VLFM.

F8 · ownership.nature: Opportunities Portfolio GP is the general partner of Opportunities Fund. Because of the relationship between Opportunities Portfolio GP and Opportunities Fund, Opportunities Portfolio GP may be deemed to beneficially own the shares of Common Stock held directly by Opportunities Fund. Opportunities GP is the sole owner of Opportunities Portfolio GP. Because of the relationship between Opportunities GP and Opportunities Portfolio GP, Opportunities GP may be deemed to beneficially own the shares of Common Stock held directly by Opportunities Fund.

F9 · ownership.nature: 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 or for any other purpose.

SEC source: 0000903423-19-000273 · vgpadaptive4.xml · nonDerivative · entry 5

VIKING GLOBAL PERFORMANCE LLC · CIK 0001132625 · 10% owner

Viking Global Equities Master Ltd. · CIK 0001759530 · 10% owner

Viking Long Fund GP LLC · CIK 0001621607 · 10% owner

Viking Long Fund Master Ltd. · CIK 0001621596 · 10% owner

HALVORSEN OLE ANDREAS · CIK 0001133006 · 10% owner

Ott David C. · CIK 0001621842 · 10% owner

Shabet Rose Sharon · CIK 0001711393 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See explanation of responses

Disclosed balance after: 38,406,607

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: On July 1, 2019 in connection with the closing of the IPO, the shares of Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series F-1 Preferred Stock held by the Reporting Persons (defined below) automatically converted into shares of Common Stock on a one-to-one basis.

F3 · ownership.nature: O. 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"), Viking Long Fund GP LLC ("VLFGP") and Viking Global Opportunities GP LLC ("Opportunities GP"), the sole owner of Viking Global Opportunities Portfolio GP LLC ("Opportunities Portfolio GP"). VGI provides managerial services to various investment funds, including Viking Global Equities II LP ("VGE II"), Viking Global Equities Master Ltd. ("VGEM"), Viking Long Fund Master Ltd. ("VLFM") and Viking Global Opportunities Illiquid Investments Sub-Master LP ("Opportunities Fund," and together with VLFM, VGEM and VGE II, the "Viking Funds").

F4 · ownership.nature: VGP is the general partner of VGE II. Opportunities Portfolio GP is the general partner of Opportunities Fund. VLFGP serves as the investment manager of VLFM. Each of the Viking Funds, VGI, VGP, VLFGP, Opportunities Portfolio GP, Mr. Halvorsen, Mr. Ott and Ms. Shabet (collectively, the "Reporting Persons") may be deemed to beneficially own the shares reported on this form.

F5 · ownership.nature: VGI provides managerial services to (i) VGEM, which directly holds 26,578,963 shares of Common Stock; (ii) VGE II, which directly holds 542,429 shares of Common Stock; (iii) VLFM, which directly holds 9,850,878 shares of Common Stock; and (iv) Opportunities Fund, which directly holds 1,434,337 shares of Common Stock. Because of the relationship between VGI and the Viking Funds, VGI may be deemed to beneficially own the shares of Common Stock directly held by the Viking Funds.

F6 · ownership.nature: VGP is the general partner of VGE II and the investment manager of VGEM. Because of the relationships between VGP and VGE II and VGEM, respectively, VGP may be deemed to beneficially own the shares of Common Stock directly held by VGE II and VGEM.

F7 · ownership.nature: VLFGP serves as the investment manager of VLFM. Because of the relationship between VLFGP and VLFM, VLFGP may be deemed to beneficially own the shares of Common Stock directly held by VLFM.

F8 · ownership.nature: Opportunities Portfolio GP is the general partner of Opportunities Fund. Because of the relationship between Opportunities Portfolio GP and Opportunities Fund, Opportunities Portfolio GP may be deemed to beneficially own the shares of Common Stock held directly by Opportunities Fund. Opportunities GP is the sole owner of Opportunities Portfolio GP. Because of the relationship between Opportunities GP and Opportunities Portfolio GP, Opportunities GP may be deemed to beneficially own the shares of Common Stock held directly by Opportunities Fund.

F9 · ownership.nature: 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 or for any other purpose.

SEC source: 0000903423-19-000273 · vgpadaptive4.xml · nonDerivative · entry 4

VIKING GLOBAL PERFORMANCE LLC · CIK 0001132625 · 10% owner

Viking Global Equities Master Ltd. · CIK 0001759530 · 10% owner

Viking Long Fund GP LLC · CIK 0001621607 · 10% owner

Viking Long Fund Master Ltd. · CIK 0001621596 · 10% owner

HALVORSEN OLE ANDREAS · CIK 0001133006 · 10% owner

Ott David C. · CIK 0001621842 · 10% owner

Shabet Rose Sharon · CIK 0001711393 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See explanation of responses

Disclosed balance after: 38,116,035

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: On July 1, 2019 in connection with the closing of the IPO, the shares of Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series F-1 Preferred Stock held by the Reporting Persons (defined below) automatically converted into shares of Common Stock on a one-to-one basis.

F3 · ownership.nature: O. 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"), Viking Long Fund GP LLC ("VLFGP") and Viking Global Opportunities GP LLC ("Opportunities GP"), the sole owner of Viking Global Opportunities Portfolio GP LLC ("Opportunities Portfolio GP"). VGI provides managerial services to various investment funds, including Viking Global Equities II LP ("VGE II"), Viking Global Equities Master Ltd. ("VGEM"), Viking Long Fund Master Ltd. ("VLFM") and Viking Global Opportunities Illiquid Investments Sub-Master LP ("Opportunities Fund," and together with VLFM, VGEM and VGE II, the "Viking Funds").

F4 · ownership.nature: VGP is the general partner of VGE II. Opportunities Portfolio GP is the general partner of Opportunities Fund. VLFGP serves as the investment manager of VLFM. Each of the Viking Funds, VGI, VGP, VLFGP, Opportunities Portfolio GP, Mr. Halvorsen, Mr. Ott and Ms. Shabet (collectively, the "Reporting Persons") may be deemed to beneficially own the shares reported on this form.

F5 · ownership.nature: VGI provides managerial services to (i) VGEM, which directly holds 26,578,963 shares of Common Stock; (ii) VGE II, which directly holds 542,429 shares of Common Stock; (iii) VLFM, which directly holds 9,850,878 shares of Common Stock; and (iv) Opportunities Fund, which directly holds 1,434,337 shares of Common Stock. Because of the relationship between VGI and the Viking Funds, VGI may be deemed to beneficially own the shares of Common Stock directly held by the Viking Funds.

F6 · ownership.nature: VGP is the general partner of VGE II and the investment manager of VGEM. Because of the relationships between VGP and VGE II and VGEM, respectively, VGP may be deemed to beneficially own the shares of Common Stock directly held by VGE II and VGEM.

F7 · ownership.nature: VLFGP serves as the investment manager of VLFM. Because of the relationship between VLFGP and VLFM, VLFGP may be deemed to beneficially own the shares of Common Stock directly held by VLFM.

F8 · ownership.nature: Opportunities Portfolio GP is the general partner of Opportunities Fund. Because of the relationship between Opportunities Portfolio GP and Opportunities Fund, Opportunities Portfolio GP may be deemed to beneficially own the shares of Common Stock held directly by Opportunities Fund. Opportunities GP is the sole owner of Opportunities Portfolio GP. Because of the relationship between Opportunities GP and Opportunities Portfolio GP, Opportunities GP may be deemed to beneficially own the shares of Common Stock held directly by Opportunities Fund.

F9 · ownership.nature: 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 or for any other purpose.

SEC source: 0000903423-19-000273 · vgpadaptive4.xml · nonDerivative · entry 3

VIKING GLOBAL PERFORMANCE LLC · CIK 0001132625 · 10% owner

Viking Global Equities Master Ltd. · CIK 0001759530 · 10% owner

Viking Long Fund GP LLC · CIK 0001621607 · 10% owner

Viking Long Fund Master Ltd. · CIK 0001621596 · 10% owner

HALVORSEN OLE ANDREAS · CIK 0001133006 · 10% owner

Ott David C. · CIK 0001621842 · 10% owner

Shabet Rose Sharon · CIK 0001711393 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See explanation of responses

Disclosed balance after: 36,108,295

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: On July 1, 2019 in connection with the closing of the IPO, the shares of Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series F-1 Preferred Stock held by the Reporting Persons (defined below) automatically converted into shares of Common Stock on a one-to-one basis.

F3 · ownership.nature: O. 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"), Viking Long Fund GP LLC ("VLFGP") and Viking Global Opportunities GP LLC ("Opportunities GP"), the sole owner of Viking Global Opportunities Portfolio GP LLC ("Opportunities Portfolio GP"). VGI provides managerial services to various investment funds, including Viking Global Equities II LP ("VGE II"), Viking Global Equities Master Ltd. ("VGEM"), Viking Long Fund Master Ltd. ("VLFM") and Viking Global Opportunities Illiquid Investments Sub-Master LP ("Opportunities Fund," and together with VLFM, VGEM and VGE II, the "Viking Funds").

F4 · ownership.nature: VGP is the general partner of VGE II. Opportunities Portfolio GP is the general partner of Opportunities Fund. VLFGP serves as the investment manager of VLFM. Each of the Viking Funds, VGI, VGP, VLFGP, Opportunities Portfolio GP, Mr. Halvorsen, Mr. Ott and Ms. Shabet (collectively, the "Reporting Persons") may be deemed to beneficially own the shares reported on this form.

F5 · ownership.nature: VGI provides managerial services to (i) VGEM, which directly holds 26,578,963 shares of Common Stock; (ii) VGE II, which directly holds 542,429 shares of Common Stock; (iii) VLFM, which directly holds 9,850,878 shares of Common Stock; and (iv) Opportunities Fund, which directly holds 1,434,337 shares of Common Stock. Because of the relationship between VGI and the Viking Funds, VGI may be deemed to beneficially own the shares of Common Stock directly held by the Viking Funds.

F6 · ownership.nature: VGP is the general partner of VGE II and the investment manager of VGEM. Because of the relationships between VGP and VGE II and VGEM, respectively, VGP may be deemed to beneficially own the shares of Common Stock directly held by VGE II and VGEM.

F7 · ownership.nature: VLFGP serves as the investment manager of VLFM. Because of the relationship between VLFGP and VLFM, VLFGP may be deemed to beneficially own the shares of Common Stock directly held by VLFM.

F8 · ownership.nature: Opportunities Portfolio GP is the general partner of Opportunities Fund. Because of the relationship between Opportunities Portfolio GP and Opportunities Fund, Opportunities Portfolio GP may be deemed to beneficially own the shares of Common Stock held directly by Opportunities Fund. Opportunities GP is the sole owner of Opportunities Portfolio GP. Because of the relationship between Opportunities GP and Opportunities Portfolio GP, Opportunities GP may be deemed to beneficially own the shares of Common Stock held directly by Opportunities Fund.

F9 · ownership.nature: 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 or for any other purpose.

SEC source: 0000903423-19-000273 · vgpadaptive4.xml · nonDerivative · entry 2

VIKING GLOBAL PERFORMANCE LLC · CIK 0001132625 · 10% owner

Viking Global Equities Master Ltd. · CIK 0001759530 · 10% owner

Viking Long Fund GP LLC · CIK 0001621607 · 10% owner

Viking Long Fund Master Ltd. · CIK 0001621596 · 10% owner

HALVORSEN OLE ANDREAS · CIK 0001133006 · 10% owner

Ott David C. · CIK 0001621842 · 10% owner

Shabet Rose Sharon · CIK 0001711393 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See explanation of responses

Disclosed balance after: 20,583,945

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: On July 1, 2019 in connection with the closing of the IPO, the shares of Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series F-1 Preferred Stock held by the Reporting Persons (defined below) automatically converted into shares of Common Stock on a one-to-one basis.

F3 · ownership.nature: O. 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"), Viking Long Fund GP LLC ("VLFGP") and Viking Global Opportunities GP LLC ("Opportunities GP"), the sole owner of Viking Global Opportunities Portfolio GP LLC ("Opportunities Portfolio GP"). VGI provides managerial services to various investment funds, including Viking Global Equities II LP ("VGE II"), Viking Global Equities Master Ltd. ("VGEM"), Viking Long Fund Master Ltd. ("VLFM") and Viking Global Opportunities Illiquid Investments Sub-Master LP ("Opportunities Fund," and together with VLFM, VGEM and VGE II, the "Viking Funds").

F4 · ownership.nature: VGP is the general partner of VGE II. Opportunities Portfolio GP is the general partner of Opportunities Fund. VLFGP serves as the investment manager of VLFM. Each of the Viking Funds, VGI, VGP, VLFGP, Opportunities Portfolio GP, Mr. Halvorsen, Mr. Ott and Ms. Shabet (collectively, the "Reporting Persons") may be deemed to beneficially own the shares reported on this form.

F5 · ownership.nature: VGI provides managerial services to (i) VGEM, which directly holds 26,578,963 shares of Common Stock; (ii) VGE II, which directly holds 542,429 shares of Common Stock; (iii) VLFM, which directly holds 9,850,878 shares of Common Stock; and (iv) Opportunities Fund, which directly holds 1,434,337 shares of Common Stock. Because of the relationship between VGI and the Viking Funds, VGI may be deemed to beneficially own the shares of Common Stock directly held by the Viking Funds.

F6 · ownership.nature: VGP is the general partner of VGE II and the investment manager of VGEM. Because of the relationships between VGP and VGE II and VGEM, respectively, VGP may be deemed to beneficially own the shares of Common Stock directly held by VGE II and VGEM.

F7 · ownership.nature: VLFGP serves as the investment manager of VLFM. Because of the relationship between VLFGP and VLFM, VLFGP may be deemed to beneficially own the shares of Common Stock directly held by VLFM.

F8 · ownership.nature: Opportunities Portfolio GP is the general partner of Opportunities Fund. Because of the relationship between Opportunities Portfolio GP and Opportunities Fund, Opportunities Portfolio GP may be deemed to beneficially own the shares of Common Stock held directly by Opportunities Fund. Opportunities GP is the sole owner of Opportunities Portfolio GP. Because of the relationship between Opportunities GP and Opportunities Portfolio GP, Opportunities GP may be deemed to beneficially own the shares of Common Stock held directly by Opportunities Fund.

F9 · ownership.nature: 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 or for any other purpose.

SEC source: 0000903423-19-000273 · vgpadaptive4.xml · nonDerivative · entry 1

VIKING GLOBAL PERFORMANCE LLC · CIK 0001132625 · 10% owner

Viking Global Equities Master Ltd. · CIK 0001759530 · 10% owner

Viking Long Fund GP LLC · CIK 0001621607 · 10% owner

Viking Long Fund Master Ltd. · CIK 0001621596 · 10% owner

HALVORSEN OLE ANDREAS · CIK 0001133006 · 10% owner

Ott David C. · CIK 0001621842 · 10% owner

Shabet Rose Sharon · CIK 0001711393 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See explanation of responses

Disclosed balance after: 1,675,000

F1 · shares: On July 1, 2019, the Viking Funds (defined below) acquired an aggregate of 250,000 shares of common stock of the Issuer ("Common Stock") at a price of $20 per share in connection with the Issuer's initial public offering ("IPO"). VGEM acquired 173,010 shares in the IPO, VGE II acquired 3,531 shares in the IPO, VLFM acquired 64,122 shares in the IPO and Opportunities Fund acquired 9,337 shares in the IPO.

F3 · ownership.nature: O. 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"), Viking Long Fund GP LLC ("VLFGP") and Viking Global Opportunities GP LLC ("Opportunities GP"), the sole owner of Viking Global Opportunities Portfolio GP LLC ("Opportunities Portfolio GP"). VGI provides managerial services to various investment funds, including Viking Global Equities II LP ("VGE II"), Viking Global Equities Master Ltd. ("VGEM"), Viking Long Fund Master Ltd. ("VLFM") and Viking Global Opportunities Illiquid Investments Sub-Master LP ("Opportunities Fund," and together with VLFM, VGEM and VGE II, the "Viking Funds").

F4 · ownership.nature: VGP is the general partner of VGE II. Opportunities Portfolio GP is the general partner of Opportunities Fund. VLFGP serves as the investment manager of VLFM. Each of the Viking Funds, VGI, VGP, VLFGP, Opportunities Portfolio GP, Mr. Halvorsen, Mr. Ott and Ms. Shabet (collectively, the "Reporting Persons") may be deemed to beneficially own the shares reported on this form.

F5 · ownership.nature: VGI provides managerial services to (i) VGEM, which directly holds 26,578,963 shares of Common Stock; (ii) VGE II, which directly holds 542,429 shares of Common Stock; (iii) VLFM, which directly holds 9,850,878 shares of Common Stock; and (iv) Opportunities Fund, which directly holds 1,434,337 shares of Common Stock. Because of the relationship between VGI and the Viking Funds, VGI may be deemed to beneficially own the shares of Common Stock directly held by the Viking Funds.

F6 · ownership.nature: VGP is the general partner of VGE II and the investment manager of VGEM. Because of the relationships between VGP and VGE II and VGEM, respectively, VGP may be deemed to beneficially own the shares of Common Stock directly held by VGE II and VGEM.

F7 · ownership.nature: VLFGP serves as the investment manager of VLFM. Because of the relationship between VLFGP and VLFM, VLFGP may be deemed to beneficially own the shares of Common Stock directly held by VLFM.

F8 · ownership.nature: Opportunities Portfolio GP is the general partner of Opportunities Fund. Because of the relationship between Opportunities Portfolio GP and Opportunities Fund, Opportunities Portfolio GP may be deemed to beneficially own the shares of Common Stock held directly by Opportunities Fund. Opportunities GP is the sole owner of Opportunities Portfolio GP. Because of the relationship between Opportunities GP and Opportunities Portfolio GP, Opportunities GP may be deemed to beneficially own the shares of Common Stock held directly by Opportunities Fund.

F9 · ownership.nature: 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 or for any other purpose.

SEC source: 0000902664-19-002915 · ownership.xml · derivative · entry 8

GOEL DAVID E. · CIK 0001548144 · Director · 10% owner · See Remarks

Matrix Capital Management Company, LP · CIK 0001410830 · Director · 10% owner · See Remarks

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 84,359 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: All of the shares of convertible preferred stock automatically converted into shares of the Issuer's common stock upon the closing of the Issuer's initial public offering. The convertible preferred stock had no expiration date.

F1 · derivative.expiration_date: All of the shares of convertible preferred stock automatically converted into shares of the Issuer's common stock upon the closing of the Issuer's initial public offering. The convertible preferred stock had no expiration date.

F2 · ownership.nature: The securities reported herein are held by Matrix Capital Management Master Fund, LP (the "Matrix Fund"). Matrix Capital Management Company, LP (the "Investment Manager"), a Delaware limited partnership, is the investment advisor to the Matrix Fund. Mr. David E. Goel ("Mr. Goel", and together with the Investment Manager, the "Reporting Persons"), serves as the Managing General Partner of the Investment Manager.

F3 · ownership.nature: The filing of this statement shall not be deemed an admission that either of the Reporting Persons is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Act of 1934, as amended, or otherwise. Each of the Reporting Persons expressly disclaims beneficial ownership of the securities reported herein except to the extent of its or his pecuniary interest therein.

SEC source: 0000902664-19-002915 · ownership.xml · derivative · entry 7

GOEL DAVID E. · CIK 0001548144 · Director · 10% owner · See Remarks

Matrix Capital Management Company, LP · CIK 0001410830 · Director · 10% owner · See Remarks

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 11,154,116 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: All of the shares of convertible preferred stock automatically converted into shares of the Issuer's common stock upon the closing of the Issuer's initial public offering. The convertible preferred stock had no expiration date.

F1 · derivative.expiration_date: All of the shares of convertible preferred stock automatically converted into shares of the Issuer's common stock upon the closing of the Issuer's initial public offering. The convertible preferred stock had no expiration date.

F2 · ownership.nature: The securities reported herein are held by Matrix Capital Management Master Fund, LP (the "Matrix Fund"). Matrix Capital Management Company, LP (the "Investment Manager"), a Delaware limited partnership, is the investment advisor to the Matrix Fund. Mr. David E. Goel ("Mr. Goel", and together with the Investment Manager, the "Reporting Persons"), serves as the Managing General Partner of the Investment Manager.

F3 · ownership.nature: The filing of this statement shall not be deemed an admission that either of the Reporting Persons is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Act of 1934, as amended, or otherwise. Each of the Reporting Persons expressly disclaims beneficial ownership of the securities reported herein except to the extent of its or his pecuniary interest therein.

SEC source: 0000902664-19-002915 · ownership.xml · derivative · entry 6

GOEL DAVID E. · CIK 0001548144 · Director · 10% owner · See Remarks

Matrix Capital Management Company, LP · CIK 0001410830 · Director · 10% owner · See Remarks

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 5,893,716 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: All of the shares of convertible preferred stock automatically converted into shares of the Issuer's common stock upon the closing of the Issuer's initial public offering. The convertible preferred stock had no expiration date.

F1 · derivative.expiration_date: All of the shares of convertible preferred stock automatically converted into shares of the Issuer's common stock upon the closing of the Issuer's initial public offering. The convertible preferred stock had no expiration date.

F2 · ownership.nature: The securities reported herein are held by Matrix Capital Management Master Fund, LP (the "Matrix Fund"). Matrix Capital Management Company, LP (the "Investment Manager"), a Delaware limited partnership, is the investment advisor to the Matrix Fund. Mr. David E. Goel ("Mr. Goel", and together with the Investment Manager, the "Reporting Persons"), serves as the Managing General Partner of the Investment Manager.

F3 · ownership.nature: The filing of this statement shall not be deemed an admission that either of the Reporting Persons is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Act of 1934, as amended, or otherwise. Each of the Reporting Persons expressly disclaims beneficial ownership of the securities reported herein except to the extent of its or his pecuniary interest therein.

SEC source: 0000902664-19-002915 · ownership.xml · derivative · entry 5

GOEL DAVID E. · CIK 0001548144 · Director · 10% owner · See Remarks

Matrix Capital Management Company, LP · CIK 0001410830 · Director · 10% owner · See Remarks

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 200,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: All of the shares of convertible preferred stock automatically converted into shares of the Issuer's common stock upon the closing of the Issuer's initial public offering. The convertible preferred stock had no expiration date.

F1 · derivative.expiration_date: All of the shares of convertible preferred stock automatically converted into shares of the Issuer's common stock upon the closing of the Issuer's initial public offering. The convertible preferred stock had no expiration date.

F2 · ownership.nature: The securities reported herein are held by Matrix Capital Management Master Fund, LP (the "Matrix Fund"). Matrix Capital Management Company, LP (the "Investment Manager"), a Delaware limited partnership, is the investment advisor to the Matrix Fund. Mr. David E. Goel ("Mr. Goel", and together with the Investment Manager, the "Reporting Persons"), serves as the Managing General Partner of the Investment Manager.

F3 · ownership.nature: The filing of this statement shall not be deemed an admission that either of the Reporting Persons is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Act of 1934, as amended, or otherwise. Each of the Reporting Persons expressly disclaims beneficial ownership of the securities reported herein except to the extent of its or his pecuniary interest therein.

SEC source: 0000902664-19-002915 · ownership.xml · nonDerivative · entry 4

GOEL DAVID E. · CIK 0001548144 · Director · 10% owner · See Remarks

Matrix Capital Management Company, LP · CIK 0001410830 · Director · 10% owner · See Remarks

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 17,332,191

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: All of the shares of convertible preferred stock automatically converted into shares of the Issuer's common stock upon the closing of the Issuer's initial public offering. The convertible preferred stock had no expiration date.

F2 · ownership.nature: The securities reported herein are held by Matrix Capital Management Master Fund, LP (the "Matrix Fund"). Matrix Capital Management Company, LP (the "Investment Manager"), a Delaware limited partnership, is the investment advisor to the Matrix Fund. Mr. David E. Goel ("Mr. Goel", and together with the Investment Manager, the "Reporting Persons"), serves as the Managing General Partner of the Investment Manager.

F3 · ownership.nature: The filing of this statement shall not be deemed an admission that either of the Reporting Persons is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Act of 1934, as amended, or otherwise. Each of the Reporting Persons expressly disclaims beneficial ownership of the securities reported herein except to the extent of its or his pecuniary interest therein.

SEC source: 0000902664-19-002915 · ownership.xml · nonDerivative · entry 3

GOEL DAVID E. · CIK 0001548144 · Director · 10% owner · See Remarks

Matrix Capital Management Company, LP · CIK 0001410830 · Director · 10% owner · See Remarks

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 17,247,832

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: All of the shares of convertible preferred stock automatically converted into shares of the Issuer's common stock upon the closing of the Issuer's initial public offering. The convertible preferred stock had no expiration date.

F2 · ownership.nature: The securities reported herein are held by Matrix Capital Management Master Fund, LP (the "Matrix Fund"). Matrix Capital Management Company, LP (the "Investment Manager"), a Delaware limited partnership, is the investment advisor to the Matrix Fund. Mr. David E. Goel ("Mr. Goel", and together with the Investment Manager, the "Reporting Persons"), serves as the Managing General Partner of the Investment Manager.

F3 · ownership.nature: The filing of this statement shall not be deemed an admission that either of the Reporting Persons is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Act of 1934, as amended, or otherwise. Each of the Reporting Persons expressly disclaims beneficial ownership of the securities reported herein except to the extent of its or his pecuniary interest therein.

SEC source: 0000902664-19-002915 · ownership.xml · nonDerivative · entry 2

GOEL DAVID E. · CIK 0001548144 · Director · 10% owner · See Remarks

Matrix Capital Management Company, LP · CIK 0001410830 · Director · 10% owner · See Remarks

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 6,093,716

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: All of the shares of convertible preferred stock automatically converted into shares of the Issuer's common stock upon the closing of the Issuer's initial public offering. The convertible preferred stock had no expiration date.

F2 · ownership.nature: The securities reported herein are held by Matrix Capital Management Master Fund, LP (the "Matrix Fund"). Matrix Capital Management Company, LP (the "Investment Manager"), a Delaware limited partnership, is the investment advisor to the Matrix Fund. Mr. David E. Goel ("Mr. Goel", and together with the Investment Manager, the "Reporting Persons"), serves as the Managing General Partner of the Investment Manager.

F3 · ownership.nature: The filing of this statement shall not be deemed an admission that either of the Reporting Persons is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Act of 1934, as amended, or otherwise. Each of the Reporting Persons expressly disclaims beneficial ownership of the securities reported herein except to the extent of its or his pecuniary interest therein.

SEC source: 0000902664-19-002915 · ownership.xml · nonDerivative · entry 1

GOEL DAVID E. · CIK 0001548144 · Director · 10% owner · See Remarks

Matrix Capital Management Company, LP · CIK 0001410830 · Director · 10% owner · See Remarks

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 200,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: All of the shares of convertible preferred stock automatically converted into shares of the Issuer's common stock upon the closing of the Issuer's initial public offering. The convertible preferred stock had no expiration date.

F2 · ownership.nature: The securities reported herein are held by Matrix Capital Management Master Fund, LP (the "Matrix Fund"). Matrix Capital Management Company, LP (the "Investment Manager"), a Delaware limited partnership, is the investment advisor to the Matrix Fund. Mr. David E. Goel ("Mr. Goel", and together with the Investment Manager, the "Reporting Persons"), serves as the Managing General Partner of the Investment Manager.

F3 · ownership.nature: The filing of this statement shall not be deemed an admission that either of the Reporting Persons is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Act of 1934, as amended, or otherwise. Each of the Reporting Persons expressly disclaims beneficial ownership of the securities reported herein except to the extent of its or his pecuniary interest therein.

SEC source: 0001572426-19-000089 · primary_doc.xml · derivative · entry 5

ROBINS CHAD M · CIK 0001780649 · Director · CEO and Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 70,680 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Reflects automatic conversion of Series E-1 Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

F1 · derivative.exercise_date: Reflects automatic conversion of Series E-1 Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

F1 · derivative.expiration_date: Reflects automatic conversion of Series E-1 Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

SEC source: 0001572426-19-000089 · primary_doc.xml · nonDerivative · entry 1

ROBINS CHAD M · CIK 0001780649 · Director · CEO and Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,858,180

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Reflects automatic conversion of Series E-1 Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

F1 · price: Reflects automatic conversion of Series E-1 Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

SEC source: 0001572426-19-000088 · primary_doc.xml · derivative · entry 4

ROBINS HARLAN S · CIK 0001780851 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 70,679 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Reflects automatic conversion of Series E-1 Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

F1 · derivative.exercise_date: Reflects automatic conversion of Series E-1 Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

F1 · derivative.expiration_date: Reflects automatic conversion of Series E-1 Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

SEC source: 0001572426-19-000088 · primary_doc.xml · nonDerivative · entry 1

ROBINS HARLAN S · CIK 0001780851 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,679

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Reflects automatic conversion of Series E-1 Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

F1 · price: Reflects automatic conversion of Series E-1 Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

SEC source: 0001572426-19-000090 · primary_doc.xml · derivative · entry 10

ZOLTNERS ANDRIS A · CIK 0001780665 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 223,082 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: Reflects automatic conversion of Series F Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

F5 · derivative.exercise_date: Reflects automatic conversion of Series F Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

F5 · derivative.expiration_date: Reflects automatic conversion of Series F Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

SEC source: 0001572426-19-000090 · primary_doc.xml · derivative · entry 9

ZOLTNERS ANDRIS A · CIK 0001780665 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 454,545 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_price: Reflects automatic conversion of Series E-1 Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

F4 · derivative.exercise_date: Reflects automatic conversion of Series E-1 Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

F4 · derivative.expiration_date: Reflects automatic conversion of Series E-1 Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

SEC source: 0001572426-19-000090 · primary_doc.xml · derivative · entry 8

ZOLTNERS ANDRIS A · CIK 0001780665 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,895,806 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Reflects automatic conversion of Series C Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

F3 · derivative.exercise_date: Reflects automatic conversion of Series C Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

F3 · derivative.expiration_date: Reflects automatic conversion of Series C Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

SEC source: 0001572426-19-000090 · primary_doc.xml · derivative · entry 7

ZOLTNERS ANDRIS A · CIK 0001780665 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 992,583 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Reflects automatic conversion of Series B Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

F2 · derivative.exercise_date: Reflects automatic conversion of Series B Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

F2 · derivative.expiration_date: Reflects automatic conversion of Series B Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

SEC source: 0001572426-19-000090 · primary_doc.xml · derivative · entry 6

ZOLTNERS ANDRIS A · CIK 0001780665 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 300,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Reflects automatic conversion of Series A Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

F1 · derivative.exercise_date: Reflects automatic conversion of Series A Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

F1 · derivative.expiration_date: Reflects automatic conversion of Series A Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

SEC source: 0001572426-19-000090 · primary_doc.xml · nonDerivative · entry 5

ZOLTNERS ANDRIS A · CIK 0001780665 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,866,016

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · security: Reflects automatic conversion of Series F Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

F5 · price: Reflects automatic conversion of Series F Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

SEC source: 0001572426-19-000090 · primary_doc.xml · nonDerivative · entry 4

ZOLTNERS ANDRIS A · CIK 0001780665 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,642,934

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · security: Reflects automatic conversion of Series E-1 Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

F4 · price: Reflects automatic conversion of Series E-1 Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

SEC source: 0001572426-19-000090 · primary_doc.xml · nonDerivative · entry 3

ZOLTNERS ANDRIS A · CIK 0001780665 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,188,389

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: Reflects automatic conversion of Series C Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

F3 · price: Reflects automatic conversion of Series C Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

SEC source: 0001572426-19-000090 · primary_doc.xml · nonDerivative · entry 2

ZOLTNERS ANDRIS A · CIK 0001780665 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,292,583

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · security: Reflects automatic conversion of Series B Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

F2 · price: Reflects automatic conversion of Series B Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

SEC source: 0001572426-19-000090 · primary_doc.xml · nonDerivative · entry 1

ZOLTNERS ANDRIS A · CIK 0001780665 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 300,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Reflects automatic conversion of Series A Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

F1 · price: Reflects automatic conversion of Series A Preferred Stock into common stock on a one-for-one basis upon the closing of the initial public offering of Issuer's common stock.

SEC source: 0001572426-19-000091 · edgar.xml · nonDerivative · entry 4

HILL NANCY LOUISE · CIK 0001780790 · Sr Vice President, Operations

10b5-1 filing: Not disclosed

Ownership: Indirect · By Connor Hill (son)

Disclosed balance after: 300

F1 · shares: The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

F1 · balance_after: The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

SEC source: 0001572426-19-000091 · edgar.xml · nonDerivative · entry 3

HILL NANCY LOUISE · CIK 0001780790 · Sr Vice President, Operations

10b5-1 filing: Not disclosed

Ownership: Indirect · By Brandon Hill (son)

Disclosed balance after: 400

F1 · shares: The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

F1 · balance_after: The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

SEC source: 0001572426-19-000091 · edgar.xml · nonDerivative · entry 2

HILL NANCY LOUISE · CIK 0001780790 · Sr Vice President, Operations

10b5-1 filing: Not disclosed

Ownership: Indirect · By Ryan Hill (son)

Disclosed balance after: 500

F1 · shares: The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

F1 · balance_after: The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

SEC source: 0001572426-19-000091 · edgar.xml · nonDerivative · entry 1

HILL NANCY LOUISE · CIK 0001780790 · Sr Vice President, Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

SEC source: 0001572426-19-000092 · edgar.xml · nonDerivative · entry 1

Cohen Chad M · CIK 0001524314 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,000

SEC source: 0001209191-20-002420 · doc5.xml · nonDerivative · entry 1

LO FRANCIS · CIK 0001780660 · Chief People Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By You Jin Lee (spouse)

Disclosed balance after: 2,500