PSNL

SEC source: 0001209191-20-018188 · doc4a.xml · nonDerivative · entry 2

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,000

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F2 · price: The weighted average sale price for the transaction reported was $8.77, and the range of prices were between $8.445 and $9.29 per share. Upon request from the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares sold at each separate price will be provided.

SEC source: 0001209191-20-018188 · doc4a.xml · nonDerivative · entry 1

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 160,000

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.

SEC source: 0001209191-20-008462 · doc4.xml · derivative · entry 3

LUDLUM KEN · CIK 0001255825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,167 shares

Expires 2028-04-25

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 · shares: Due to a rounding discrepancy, the Form 3 filed on June 16, 2019 with respect to the stock option exercise reported herein incorrectly reflected a grant of 4,166 options, rather than a grant of 4,167 options.

F3 · derivative.exercise_date: The shares subject to the option are fully vested and exercisable.

SEC source: 0001209191-20-008462 · doc4.xml · nonDerivative · entry 1

LUDLUM KEN · CIK 0001255825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,000

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.

SEC source: 0001209191-20-002942 · doc4.xml · derivative · entry 2

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 265,249

Underlying: Common Stock · 12,000 shares

Expires 2022-03-07

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: The shares subject to the option are fully vested and exercisable.

SEC source: 0001209191-20-002942 · doc4.xml · nonDerivative · entry 1

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,000

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.

SEC source: 0001209191-19-061996 · doc4.xml · derivative · entry 2

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 277,249

Underlying: Common Stock · 12,000 shares

Expires 2022-03-07

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: The shares subject to the option are fully vested and exercisable.

SEC source: 0001209191-19-061996 · doc4.xml · nonDerivative · entry 1

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,000

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.

SEC source: 0001209191-20-009754 · doc5.xml · nonDerivative · entry 1

RICCI PAUL · CIK 0001218326 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 19,999

F1 · ownership.nature: The shares are held of record by Michael T. Cody, as Trustee of the Paul A. Ricci Irrevocable Trust Under Agreement Dated May 27, 2011, of which the Reporting Person's children are beneficiaries.

SEC source: 0001209191-19-059382 · doc4.xml · nonDerivative · entry 1

Tachibana Aaron · CIK 0001401786 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 102,249

F1 · shares: Each share is represented by a restricted stock unit ("RSU"). Each RSU represents a contingent right to receive one share of the Issuer's common stock upon settlement. The RSUs vest in 36 equal monthly installments with the first installment vesting on January 1, 2020.

F2 · balance_after: Includes 2,249 shares acquired under the Issuer's Employee Stock Purchase Plan ("ESPP") on November 1, 2019.

SEC source: 0001209191-19-059378 · doc4.xml · nonDerivative · entry 1

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,000

F1 · shares: Each share is represented by a restricted stock unit ("RSU"). Each RSU represents a contingent right to receive one share of the Issuer's common stock upon settlement. The RSUs vest in 36 equal monthly installments with the first installment vesting on January 1, 2020.

SEC source: 0001209191-19-059377 · doc4.xml · nonDerivative · entry 1

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,000

F1 · shares: Each share is represented by a restricted stock unit ("RSU"). Each RSU represents a contingent right to receive one share of the Issuer's common stock upon settlement. The RSUs vest in 36 equal monthly installments with the first installment vesting on January 1, 2020.

SEC source: 0001209191-19-057995 · doc4.xml · nonDerivative · entry 1

West John Stephen · CIK 0001779811 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 505,412

F1 · balance_after: Includes 2,412 shares acquired under the Issuer's Employee Stock Purchase Plan ("ESPP") on November 1, 2019.

SEC source: 0001209191-19-049724 · doc4.xml · derivative · entry 1

EASTHAM KARIN · CIK 0001231845 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,000

Underlying: Common Stock · 24,000 shares

Expires 2029-09-08

F1 · derivative.exercise_date: The shares underlying the option vest in three successive equal annual installments over the three-year period measured from September 9, 2019.

SEC source: 0001209191-19-038865 · doc4.xml · nonDerivative · entry 2

RICCI PAUL · CIK 0001218326 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 20,000

F1 · shares: Represents shares acquired pursuant to a directed share program in connection with the Issuer's initial public offering of Common Stock.

F3 · ownership.nature: The shares are held of record by Paul A. Ricci Living Trust Under Agreement Dated June 26, 2006, for which the Reporting Person serves as trustee.

SEC source: 0001209191-19-038865 · doc4.xml · nonDerivative · entry 1

RICCI PAUL · CIK 0001218326 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 20,000

F1 · shares: Represents shares acquired pursuant to a directed share program in connection with the Issuer's initial public offering of Common Stock.

F2 · ownership.nature: The shares are held of record by Michael T. Cody, as Trustee of the Paul A. Ricci Irrevocable Trust Under Agreement Dated May 27, 2011, of which the Reporting Person's children are beneficiaries.

SEC source: 0001209191-19-038863 · doc4.xml · nonDerivative · entry 1

LUDLUM KEN · CIK 0001255825 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 70,000

F1 · shares: Represents shares acquired pursuant to a directed share program in connection with the Issuer's initial public offering of Common Stock.

F2 · ownership.nature: The shares are held of record by Kenneth E. Ludlum Revocable Living Trust Under Agreement Dated April 19, 2013, for which the Reporting Person serves as trustee.

SEC source: 0001209191-19-039125 · doc4.xml · derivative · entry 14

Ninth MDV Partners, L.L.C. · CIK 0001573991 · 10% owner

MDV IX LP · CIK 0001410787 · 10% owner

MDV ENF IX LP · CIK 0001435083 · 10% owner

FEIBER JONATHAN D · CIK 0001027621 · 10% owner

Ericson William W. · CIK 0001503381 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 127,504 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: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F1 · derivative.exercise_date: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F1 · derivative.expiration_date: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F4 · ownership.nature: These shares are held directly by MDV IX, L.P., as nominee for MDV IX, L.P. and MDV ENF IX, L.P. ("IX Funds"). Ninth MDV is the general partner of IX Funds. Jonathan Feiber and William Ericson are the managing members of Ninth MDV and either are deemed to have sole voting and dispositive power with respect to the shares held by IX Funds. Each disclaims beneficial ownership of these securities except to the extent of his or its respective pecuniary interest therein.

SEC source: 0001209191-19-039125 · doc4.xml · derivative · entry 13

Ninth MDV Partners, L.L.C. · CIK 0001573991 · 10% owner

MDV IX LP · CIK 0001410787 · 10% owner

MDV ENF IX LP · CIK 0001435083 · 10% owner

FEIBER JONATHAN D · CIK 0001027621 · 10% owner

Ericson William W. · CIK 0001503381 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 504 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: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F1 · derivative.exercise_date: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F1 · derivative.expiration_date: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F3 · ownership.nature: These shares are held directly by MDV ENF IX, L.P. ("ENF IX"). Ninth MDV is the general partner of ENF IX. Jonathan Feiber and William Ericson are the managing members of Ninth MDV and either are deemed to have sole voting and dispositive power with respect to the shares held by ENF IX. Each disclaims beneficial ownership of these securities except to the extent of his or its respective pecuniary interest therein.

SEC source: 0001209191-19-039125 · doc4.xml · derivative · entry 12

Ninth MDV Partners, L.L.C. · CIK 0001573991 · 10% owner

MDV IX LP · CIK 0001410787 · 10% owner

MDV ENF IX LP · CIK 0001435083 · 10% owner

FEIBER JONATHAN D · CIK 0001027621 · 10% owner

Ericson William W. · CIK 0001503381 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 61,592 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: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F1 · derivative.exercise_date: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F1 · derivative.expiration_date: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F2 · ownership.nature: These shares are held directly by MDV IX, L.P. ("MDV IX"). Ninth MDV Partners, L.L.C. ("Ninth MDV") is the general partner of MDV IX. Jonathan Feiber and William Ericson are the managing members of Ninth MDV and either are deemed to have sole voting and dispositive power with respect to the shares held by MDV IX. Each disclaims beneficial ownership of these securities except to the extent of his or its respective pecuniary interest therein.

SEC source: 0001209191-19-039125 · doc4.xml · derivative · entry 11

Ninth MDV Partners, L.L.C. · CIK 0001573991 · 10% owner

MDV IX LP · CIK 0001410787 · 10% owner

MDV ENF IX LP · CIK 0001435083 · 10% owner

FEIBER JONATHAN D · CIK 0001027621 · 10% owner

Ericson William W. · CIK 0001503381 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 882 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: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F1 · derivative.exercise_date: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F1 · derivative.expiration_date: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F3 · ownership.nature: These shares are held directly by MDV ENF IX, L.P. ("ENF IX"). Ninth MDV is the general partner of ENF IX. Jonathan Feiber and William Ericson are the managing members of Ninth MDV and either are deemed to have sole voting and dispositive power with respect to the shares held by ENF IX. Each disclaims beneficial ownership of these securities except to the extent of his or its respective pecuniary interest therein.

SEC source: 0001209191-19-039125 · doc4.xml · derivative · entry 10

Ninth MDV Partners, L.L.C. · CIK 0001573991 · 10% owner

MDV IX LP · CIK 0001410787 · 10% owner

MDV ENF IX LP · CIK 0001435083 · 10% owner

FEIBER JONATHAN D · CIK 0001027621 · 10% owner

Ericson William W. · CIK 0001503381 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 107,812 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: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F1 · derivative.exercise_date: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F1 · derivative.expiration_date: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F2 · ownership.nature: These shares are held directly by MDV IX, L.P. ("MDV IX"). Ninth MDV Partners, L.L.C. ("Ninth MDV") is the general partner of MDV IX. Jonathan Feiber and William Ericson are the managing members of Ninth MDV and either are deemed to have sole voting and dispositive power with respect to the shares held by MDV IX. Each disclaims beneficial ownership of these securities except to the extent of his or its respective pecuniary interest therein.

SEC source: 0001209191-19-039125 · doc4.xml · derivative · entry 9

Ninth MDV Partners, L.L.C. · CIK 0001573991 · 10% owner

MDV IX LP · CIK 0001410787 · 10% owner

MDV ENF IX LP · CIK 0001435083 · 10% owner

FEIBER JONATHAN D · CIK 0001027621 · 10% owner

Ericson William W. · CIK 0001503381 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 18,739 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: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F1 · derivative.exercise_date: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F1 · derivative.expiration_date: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F3 · ownership.nature: These shares are held directly by MDV ENF IX, L.P. ("ENF IX"). Ninth MDV is the general partner of ENF IX. Jonathan Feiber and William Ericson are the managing members of Ninth MDV and either are deemed to have sole voting and dispositive power with respect to the shares held by ENF IX. Each disclaims beneficial ownership of these securities except to the extent of his or its respective pecuniary interest therein.

SEC source: 0001209191-19-039125 · doc4.xml · derivative · entry 8

Ninth MDV Partners, L.L.C. · CIK 0001573991 · 10% owner

MDV IX LP · CIK 0001410787 · 10% owner

MDV ENF IX LP · CIK 0001435083 · 10% owner

FEIBER JONATHAN D · CIK 0001027621 · 10% owner

Ericson William W. · CIK 0001503381 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 2,288,805 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: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F1 · derivative.exercise_date: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F1 · derivative.expiration_date: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F2 · ownership.nature: These shares are held directly by MDV IX, L.P. ("MDV IX"). Ninth MDV Partners, L.L.C. ("Ninth MDV") is the general partner of MDV IX. Jonathan Feiber and William Ericson are the managing members of Ninth MDV and either are deemed to have sole voting and dispositive power with respect to the shares held by MDV IX. Each disclaims beneficial ownership of these securities except to the extent of his or its respective pecuniary interest therein.

SEC source: 0001209191-19-039125 · doc4.xml · nonDerivative · entry 7

Ninth MDV Partners, L.L.C. · CIK 0001573991 · 10% owner

MDV IX LP · CIK 0001410787 · 10% owner

MDV ENF IX LP · CIK 0001435083 · 10% owner

FEIBER JONATHAN D · CIK 0001027621 · 10% owner

Ericson William W. · CIK 0001503381 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 127,504

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: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F4 · ownership.nature: These shares are held directly by MDV IX, L.P., as nominee for MDV IX, L.P. and MDV ENF IX, L.P. ("IX Funds"). Ninth MDV is the general partner of IX Funds. Jonathan Feiber and William Ericson are the managing members of Ninth MDV and either are deemed to have sole voting and dispositive power with respect to the shares held by IX Funds. Each disclaims beneficial ownership of these securities except to the extent of his or its respective pecuniary interest therein.

SEC source: 0001209191-19-039125 · doc4.xml · nonDerivative · entry 6

Ninth MDV Partners, L.L.C. · CIK 0001573991 · 10% owner

MDV IX LP · CIK 0001410787 · 10% owner

MDV ENF IX LP · CIK 0001435083 · 10% owner

FEIBER JONATHAN D · CIK 0001027621 · 10% owner

Ericson William W. · CIK 0001503381 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 20,125

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: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F3 · ownership.nature: These shares are held directly by MDV ENF IX, L.P. ("ENF IX"). Ninth MDV is the general partner of ENF IX. Jonathan Feiber and William Ericson are the managing members of Ninth MDV and either are deemed to have sole voting and dispositive power with respect to the shares held by ENF IX. Each disclaims beneficial ownership of these securities except to the extent of his or its respective pecuniary interest therein.

SEC source: 0001209191-19-039125 · doc4.xml · nonDerivative · entry 5

Ninth MDV Partners, L.L.C. · CIK 0001573991 · 10% owner

MDV IX LP · CIK 0001410787 · 10% owner

MDV ENF IX LP · CIK 0001435083 · 10% owner

FEIBER JONATHAN D · CIK 0001027621 · 10% owner

Ericson William W. · CIK 0001503381 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 19,621

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: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F3 · ownership.nature: These shares are held directly by MDV ENF IX, L.P. ("ENF IX"). Ninth MDV is the general partner of ENF IX. Jonathan Feiber and William Ericson are the managing members of Ninth MDV and either are deemed to have sole voting and dispositive power with respect to the shares held by ENF IX. Each disclaims beneficial ownership of these securities except to the extent of his or its respective pecuniary interest therein.

SEC source: 0001209191-19-039125 · doc4.xml · nonDerivative · entry 4

Ninth MDV Partners, L.L.C. · CIK 0001573991 · 10% owner

MDV IX LP · CIK 0001410787 · 10% owner

MDV ENF IX LP · CIK 0001435083 · 10% owner

FEIBER JONATHAN D · CIK 0001027621 · 10% owner

Ericson William W. · CIK 0001503381 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 18,739

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: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F3 · ownership.nature: These shares are held directly by MDV ENF IX, L.P. ("ENF IX"). Ninth MDV is the general partner of ENF IX. Jonathan Feiber and William Ericson are the managing members of Ninth MDV and either are deemed to have sole voting and dispositive power with respect to the shares held by ENF IX. Each disclaims beneficial ownership of these securities except to the extent of his or its respective pecuniary interest therein.

SEC source: 0001209191-19-039125 · doc4.xml · nonDerivative · entry 3

Ninth MDV Partners, L.L.C. · CIK 0001573991 · 10% owner

MDV IX LP · CIK 0001410787 · 10% owner

MDV ENF IX LP · CIK 0001435083 · 10% owner

FEIBER JONATHAN D · CIK 0001027621 · 10% owner

Ericson William W. · CIK 0001503381 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 2,458,209

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: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F2 · ownership.nature: These shares are held directly by MDV IX, L.P. ("MDV IX"). Ninth MDV Partners, L.L.C. ("Ninth MDV") is the general partner of MDV IX. Jonathan Feiber and William Ericson are the managing members of Ninth MDV and either are deemed to have sole voting and dispositive power with respect to the shares held by MDV IX. Each disclaims beneficial ownership of these securities except to the extent of his or its respective pecuniary interest therein.

SEC source: 0001209191-19-039125 · doc4.xml · nonDerivative · entry 2

Ninth MDV Partners, L.L.C. · CIK 0001573991 · 10% owner

MDV IX LP · CIK 0001410787 · 10% owner

MDV ENF IX LP · CIK 0001435083 · 10% owner

FEIBER JONATHAN D · CIK 0001027621 · 10% owner

Ericson William W. · CIK 0001503381 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 2,396,617

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: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F2 · ownership.nature: These shares are held directly by MDV IX, L.P. ("MDV IX"). Ninth MDV Partners, L.L.C. ("Ninth MDV") is the general partner of MDV IX. Jonathan Feiber and William Ericson are the managing members of Ninth MDV and either are deemed to have sole voting and dispositive power with respect to the shares held by MDV IX. Each disclaims beneficial ownership of these securities except to the extent of his or its respective pecuniary interest therein.

SEC source: 0001209191-19-039125 · doc4.xml · nonDerivative · entry 1

Ninth MDV Partners, L.L.C. · CIK 0001573991 · 10% owner

MDV IX LP · CIK 0001410787 · 10% owner

MDV ENF IX LP · CIK 0001435083 · 10% owner

FEIBER JONATHAN D · CIK 0001027621 · 10% owner

Ericson William W. · CIK 0001503381 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 2,288,805

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: The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date.

F2 · ownership.nature: These shares are held directly by MDV IX, L.P. ("MDV IX"). Ninth MDV Partners, L.L.C. ("Ninth MDV") is the general partner of MDV IX. Jonathan Feiber and William Ericson are the managing members of Ninth MDV and either are deemed to have sole voting and dispositive power with respect to the shares held by MDV IX. Each disclaims beneficial ownership of these securities except to the extent of his or its respective pecuniary interest therein.

SEC source: 0001104659-19-037645 · a4.xml · derivative · entry 6

LIGHTSPEED VENTURE PARTNERS VIII LP · CIK 0001435573 · 10% owner

Lightspeed General Partner VIII, L.P. · CIK 0001522569 · 10% owner

Lightspeed Ultimate General Partner VIII, Ltd. · CIK 0001522568 · 10% owner

Lightspeed Venture Partners Select, L.P. · CIK 0001602575 · 10% owner

Lightspeed General Partner Select, L.P. · CIK 0001700551 · 10% owner

Lightspeed Ultimate General Partner Select, Ltd. · CIK 0001700544 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Mhatre Ravi · CIK 0001366050 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Liew Jeremy · CIK 0001700539 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,958,726 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: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F1 · kind: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F1 · price: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F1 · derivative.exercise_date: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F1 · derivative.expiration_date: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F3 · ownership.direct: Shares held by Lightspeed Venture Partners Select, L.P. ("Lightspeed Select"). Lightspeed General Partner Select, L.P. ("LGP Select") is the general partner of Lightspeed Select. Lightspeed Ultimate General Partner Select, Ltd. ("LUGP Select") is the general partner of LGP Select. Barry Eggers, Jeremy Liew, Ravi Mhatre and Peter Nieh are the directors of LUGP Select and share voting and dispositive power with respect to the shares held by Lightspeed Select. LGP Select, LUGP Select and Messrs. Eggers, Liew, Mhatre and Nieh disclaim beneficial ownership of the shares held by Lightspeed Select except to the extent of their respective pecuniary interests therein.

F3 · ownership.nature: Shares held by Lightspeed Venture Partners Select, L.P. ("Lightspeed Select"). Lightspeed General Partner Select, L.P. ("LGP Select") is the general partner of Lightspeed Select. Lightspeed Ultimate General Partner Select, Ltd. ("LUGP Select") is the general partner of LGP Select. Barry Eggers, Jeremy Liew, Ravi Mhatre and Peter Nieh are the directors of LUGP Select and share voting and dispositive power with respect to the shares held by Lightspeed Select. LGP Select, LUGP Select and Messrs. Eggers, Liew, Mhatre and Nieh disclaim beneficial ownership of the shares held by Lightspeed Select except to the extent of their respective pecuniary interests therein.

SEC source: 0001104659-19-037645 · a4.xml · derivative · entry 5

LIGHTSPEED VENTURE PARTNERS VIII LP · CIK 0001435573 · 10% owner

Lightspeed General Partner VIII, L.P. · CIK 0001522569 · 10% owner

Lightspeed Ultimate General Partner VIII, Ltd. · CIK 0001522568 · 10% owner

Lightspeed Venture Partners Select, L.P. · CIK 0001602575 · 10% owner

Lightspeed General Partner Select, L.P. · CIK 0001700551 · 10% owner

Lightspeed Ultimate General Partner Select, Ltd. · CIK 0001700544 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Mhatre Ravi · CIK 0001366050 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Liew Jeremy · CIK 0001700539 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 822,435 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: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F1 · kind: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F1 · price: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F1 · derivative.exercise_date: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F1 · derivative.expiration_date: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F2 · ownership.direct: Shares held by Lightspeed Venture Partners VIII, L.P. ("Lightspeed VIII"). Lightspeed General Partner VIII, L.P. ("LGP VIII") is the general partner of Lightspeed VIII. Lightspeed Ultimate General Partner VIII, Ltd. ("LUGP VIII") is the general partner of LGP VIII. Barry Eggers, Ravi Mhatre and Peter Nieh are the directors of LUGP VIII and share voting and dispositive power with respect to the shares held by Lightspeed VIII. LGP VIII, LUGP VIII and Messrs. Eggers, Mhatre and Nieh disclaim beneficial ownership of the shares held by Lightspeed VIII except to the extent of their respective pecuniary interests therein.

F2 · ownership.nature: Shares held by Lightspeed Venture Partners VIII, L.P. ("Lightspeed VIII"). Lightspeed General Partner VIII, L.P. ("LGP VIII") is the general partner of Lightspeed VIII. Lightspeed Ultimate General Partner VIII, Ltd. ("LUGP VIII") is the general partner of LGP VIII. Barry Eggers, Ravi Mhatre and Peter Nieh are the directors of LUGP VIII and share voting and dispositive power with respect to the shares held by Lightspeed VIII. LGP VIII, LUGP VIII and Messrs. Eggers, Mhatre and Nieh disclaim beneficial ownership of the shares held by Lightspeed VIII except to the extent of their respective pecuniary interests therein.

SEC source: 0001104659-19-037645 · a4.xml · derivative · entry 4

LIGHTSPEED VENTURE PARTNERS VIII LP · CIK 0001435573 · 10% owner

Lightspeed General Partner VIII, L.P. · CIK 0001522569 · 10% owner

Lightspeed Ultimate General Partner VIII, Ltd. · CIK 0001522568 · 10% owner

Lightspeed Venture Partners Select, L.P. · CIK 0001602575 · 10% owner

Lightspeed General Partner Select, L.P. · CIK 0001700551 · 10% owner

Lightspeed Ultimate General Partner Select, Ltd. · CIK 0001700544 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Mhatre Ravi · CIK 0001366050 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Liew Jeremy · CIK 0001700539 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 978,260 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: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F1 · kind: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F1 · price: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F1 · derivative.exercise_date: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F1 · derivative.expiration_date: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F2 · ownership.direct: Shares held by Lightspeed Venture Partners VIII, L.P. ("Lightspeed VIII"). Lightspeed General Partner VIII, L.P. ("LGP VIII") is the general partner of Lightspeed VIII. Lightspeed Ultimate General Partner VIII, Ltd. ("LUGP VIII") is the general partner of LGP VIII. Barry Eggers, Ravi Mhatre and Peter Nieh are the directors of LUGP VIII and share voting and dispositive power with respect to the shares held by Lightspeed VIII. LGP VIII, LUGP VIII and Messrs. Eggers, Mhatre and Nieh disclaim beneficial ownership of the shares held by Lightspeed VIII except to the extent of their respective pecuniary interests therein.

F2 · ownership.nature: Shares held by Lightspeed Venture Partners VIII, L.P. ("Lightspeed VIII"). Lightspeed General Partner VIII, L.P. ("LGP VIII") is the general partner of Lightspeed VIII. Lightspeed Ultimate General Partner VIII, Ltd. ("LUGP VIII") is the general partner of LGP VIII. Barry Eggers, Ravi Mhatre and Peter Nieh are the directors of LUGP VIII and share voting and dispositive power with respect to the shares held by Lightspeed VIII. LGP VIII, LUGP VIII and Messrs. Eggers, Mhatre and Nieh disclaim beneficial ownership of the shares held by Lightspeed VIII except to the extent of their respective pecuniary interests therein.

SEC source: 0001104659-19-037645 · a4.xml · derivative · entry 3

LIGHTSPEED VENTURE PARTNERS VIII LP · CIK 0001435573 · 10% owner

Lightspeed General Partner VIII, L.P. · CIK 0001522569 · 10% owner

Lightspeed Ultimate General Partner VIII, Ltd. · CIK 0001522568 · 10% owner

Lightspeed Venture Partners Select, L.P. · CIK 0001602575 · 10% owner

Lightspeed General Partner Select, L.P. · CIK 0001700551 · 10% owner

Lightspeed Ultimate General Partner Select, Ltd. · CIK 0001700544 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Mhatre Ravi · CIK 0001366050 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Liew Jeremy · CIK 0001700539 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 2,317,073 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: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F1 · kind: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F1 · price: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F1 · derivative.exercise_date: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F1 · derivative.expiration_date: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F2 · ownership.direct: Shares held by Lightspeed Venture Partners VIII, L.P. ("Lightspeed VIII"). Lightspeed General Partner VIII, L.P. ("LGP VIII") is the general partner of Lightspeed VIII. Lightspeed Ultimate General Partner VIII, Ltd. ("LUGP VIII") is the general partner of LGP VIII. Barry Eggers, Ravi Mhatre and Peter Nieh are the directors of LUGP VIII and share voting and dispositive power with respect to the shares held by Lightspeed VIII. LGP VIII, LUGP VIII and Messrs. Eggers, Mhatre and Nieh disclaim beneficial ownership of the shares held by Lightspeed VIII except to the extent of their respective pecuniary interests therein.

F2 · ownership.nature: Shares held by Lightspeed Venture Partners VIII, L.P. ("Lightspeed VIII"). Lightspeed General Partner VIII, L.P. ("LGP VIII") is the general partner of Lightspeed VIII. Lightspeed Ultimate General Partner VIII, Ltd. ("LUGP VIII") is the general partner of LGP VIII. Barry Eggers, Ravi Mhatre and Peter Nieh are the directors of LUGP VIII and share voting and dispositive power with respect to the shares held by Lightspeed VIII. LGP VIII, LUGP VIII and Messrs. Eggers, Mhatre and Nieh disclaim beneficial ownership of the shares held by Lightspeed VIII except to the extent of their respective pecuniary interests therein.

SEC source: 0001104659-19-037645 · a4.xml · nonDerivative · entry 2

LIGHTSPEED VENTURE PARTNERS VIII LP · CIK 0001435573 · 10% owner

Lightspeed General Partner VIII, L.P. · CIK 0001522569 · 10% owner

Lightspeed Ultimate General Partner VIII, Ltd. · CIK 0001522568 · 10% owner

Lightspeed Venture Partners Select, L.P. · CIK 0001602575 · 10% owner

Lightspeed General Partner Select, L.P. · CIK 0001700551 · 10% owner

Lightspeed Ultimate General Partner Select, Ltd. · CIK 0001700544 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Mhatre Ravi · CIK 0001366050 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Liew Jeremy · CIK 0001700539 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 1,958,726

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 · kind: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F1 · price: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F3 · ownership.direct: Shares held by Lightspeed Venture Partners Select, L.P. ("Lightspeed Select"). Lightspeed General Partner Select, L.P. ("LGP Select") is the general partner of Lightspeed Select. Lightspeed Ultimate General Partner Select, Ltd. ("LUGP Select") is the general partner of LGP Select. Barry Eggers, Jeremy Liew, Ravi Mhatre and Peter Nieh are the directors of LUGP Select and share voting and dispositive power with respect to the shares held by Lightspeed Select. LGP Select, LUGP Select and Messrs. Eggers, Liew, Mhatre and Nieh disclaim beneficial ownership of the shares held by Lightspeed Select except to the extent of their respective pecuniary interests therein.

F3 · ownership.nature: Shares held by Lightspeed Venture Partners Select, L.P. ("Lightspeed Select"). Lightspeed General Partner Select, L.P. ("LGP Select") is the general partner of Lightspeed Select. Lightspeed Ultimate General Partner Select, Ltd. ("LUGP Select") is the general partner of LGP Select. Barry Eggers, Jeremy Liew, Ravi Mhatre and Peter Nieh are the directors of LUGP Select and share voting and dispositive power with respect to the shares held by Lightspeed Select. LGP Select, LUGP Select and Messrs. Eggers, Liew, Mhatre and Nieh disclaim beneficial ownership of the shares held by Lightspeed Select except to the extent of their respective pecuniary interests therein.

SEC source: 0001104659-19-037645 · a4.xml · nonDerivative · entry 1

LIGHTSPEED VENTURE PARTNERS VIII LP · CIK 0001435573 · 10% owner

Lightspeed General Partner VIII, L.P. · CIK 0001522569 · 10% owner

Lightspeed Ultimate General Partner VIII, Ltd. · CIK 0001522568 · 10% owner

Lightspeed Venture Partners Select, L.P. · CIK 0001602575 · 10% owner

Lightspeed General Partner Select, L.P. · CIK 0001700551 · 10% owner

Lightspeed Ultimate General Partner Select, Ltd. · CIK 0001700544 · 10% owner

Eggers Barry · CIK 0001366048 · 10% owner

Mhatre Ravi · CIK 0001366050 · 10% owner

Nieh Peter · CIK 0001366051 · 10% owner

Liew Jeremy · CIK 0001700539 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 4,117,768

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 · kind: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F1 · price: The Issuer's preferred stock automatically converted into an equal number of shares of the Issuer's common stock, for no additional consideration, upon the closing of the Issuer's initial public offering and has no expiration date.

F2 · ownership.direct: Shares held by Lightspeed Venture Partners VIII, L.P. ("Lightspeed VIII"). Lightspeed General Partner VIII, L.P. ("LGP VIII") is the general partner of Lightspeed VIII. Lightspeed Ultimate General Partner VIII, Ltd. ("LUGP VIII") is the general partner of LGP VIII. Barry Eggers, Ravi Mhatre and Peter Nieh are the directors of LUGP VIII and share voting and dispositive power with respect to the shares held by Lightspeed VIII. LGP VIII, LUGP VIII and Messrs. Eggers, Mhatre and Nieh disclaim beneficial ownership of the shares held by Lightspeed VIII except to the extent of their respective pecuniary interests therein.

F2 · ownership.nature: Shares held by Lightspeed Venture Partners VIII, L.P. ("Lightspeed VIII"). Lightspeed General Partner VIII, L.P. ("LGP VIII") is the general partner of Lightspeed VIII. Lightspeed Ultimate General Partner VIII, Ltd. ("LUGP VIII") is the general partner of LGP VIII. Barry Eggers, Ravi Mhatre and Peter Nieh are the directors of LUGP VIII and share voting and dispositive power with respect to the shares held by Lightspeed VIII. LGP VIII, LUGP VIII and Messrs. Eggers, Mhatre and Nieh disclaim beneficial ownership of the shares held by Lightspeed VIII except to the extent of their respective pecuniary interests therein.

SEC source: 0000905718-19-000553 · personalis_fm4jun242019.xml · derivative · entry 6

Abingworth LLP · CIK 0001397144 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock, $0.0001 par value per share · 878,361 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_date: Each share of Series A, Series B and Series C Preferred Stock is immediately convertible, at the option of the shareholder, into one share of Common Stock, $0.0001 par value per share ("Common Stock") and shall automatically convert into Common Stock upon the occurrence of certain events. Please see the Personalis, Inc. Registration Statement filed with the Securities and Exchange Commission on Form S-1 (File No. 333-231703) for a description of the conversion rights.

F2 · derivative.expiration_date: Each share of Series A, Series B and Series C Preferred Stock is immediately convertible, at the option of the shareholder, into one share of Common Stock, $0.0001 par value per share ("Common Stock") and shall automatically convert into Common Stock upon the occurrence of certain events. Please see the Personalis, Inc. Registration Statement filed with the Securities and Exchange Commission on Form S-1 (File No. 333-231703) for a description of the conversion rights.

F2 · ownership.nature: Each share of Series A, Series B and Series C Preferred Stock is immediately convertible, at the option of the shareholder, into one share of Common Stock, $0.0001 par value per share ("Common Stock") and shall automatically convert into Common Stock upon the occurrence of certain events. Please see the Personalis, Inc. Registration Statement filed with the Securities and Exchange Commission on Form S-1 (File No. 333-231703) for a description of the conversion rights.

SEC source: 0000905718-19-000553 · personalis_fm4jun242019.xml · derivative · entry 5

Abingworth LLP · CIK 0001397144 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock, $0.0001 par value per share · 2,065,217 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_date: Each share of Series A, Series B and Series C Preferred Stock is immediately convertible, at the option of the shareholder, into one share of Common Stock, $0.0001 par value per share ("Common Stock") and shall automatically convert into Common Stock upon the occurrence of certain events. Please see the Personalis, Inc. Registration Statement filed with the Securities and Exchange Commission on Form S-1 (File No. 333-231703) for a description of the conversion rights.

F2 · derivative.expiration_date: Each share of Series A, Series B and Series C Preferred Stock is immediately convertible, at the option of the shareholder, into one share of Common Stock, $0.0001 par value per share ("Common Stock") and shall automatically convert into Common Stock upon the occurrence of certain events. Please see the Personalis, Inc. Registration Statement filed with the Securities and Exchange Commission on Form S-1 (File No. 333-231703) for a description of the conversion rights.

F2 · ownership.nature: Each share of Series A, Series B and Series C Preferred Stock is immediately convertible, at the option of the shareholder, into one share of Common Stock, $0.0001 par value per share ("Common Stock") and shall automatically convert into Common Stock upon the occurrence of certain events. Please see the Personalis, Inc. Registration Statement filed with the Securities and Exchange Commission on Form S-1 (File No. 333-231703) for a description of the conversion rights.

SEC source: 0000905718-19-000553 · personalis_fm4jun242019.xml · derivative · entry 4

Abingworth LLP · CIK 0001397144 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock, $0.0001 par value per share · 2,317,073 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_date: Each share of Series A, Series B and Series C Preferred Stock is immediately convertible, at the option of the shareholder, into one share of Common Stock, $0.0001 par value per share ("Common Stock") and shall automatically convert into Common Stock upon the occurrence of certain events. Please see the Personalis, Inc. Registration Statement filed with the Securities and Exchange Commission on Form S-1 (File No. 333-231703) for a description of the conversion rights.

F2 · derivative.expiration_date: Each share of Series A, Series B and Series C Preferred Stock is immediately convertible, at the option of the shareholder, into one share of Common Stock, $0.0001 par value per share ("Common Stock") and shall automatically convert into Common Stock upon the occurrence of certain events. Please see the Personalis, Inc. Registration Statement filed with the Securities and Exchange Commission on Form S-1 (File No. 333-231703) for a description of the conversion rights.

F2 · ownership.nature: Each share of Series A, Series B and Series C Preferred Stock is immediately convertible, at the option of the shareholder, into one share of Common Stock, $0.0001 par value per share ("Common Stock") and shall automatically convert into Common Stock upon the occurrence of certain events. Please see the Personalis, Inc. Registration Statement filed with the Securities and Exchange Commission on Form S-1 (File No. 333-231703) for a description of the conversion rights.

SEC source: 0000905718-19-000553 · personalis_fm4jun242019.xml · nonDerivative · entry 3

Abingworth LLP · CIK 0001397144 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 5,449,294

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 · ownership.nature: The shares are held by Abingworth Bioventures V LP ("Abingworth V"). Abingworth Bioventures V GP LP ("Abingworth GP") serves as the general partner of Abingworth V. Abingworth General Partner V LLP, serves as the general partner of Abingworth GP. Abingworth V (acting by its general partner Abingworth GP, acting by its general partner Abingworth General Partner V LLP) has delegated to Abingworth LLP ("ALLP"), all investment and dispositive power over the securities held by Abingworth V. ALLP holds the reported securities indirectly through Abingworth V. ALLP disclaims beneficial ownership of such shares, except to the extent of its pecuniary interest therein. This report shall not be deemed an admission that the reporting person, Abingworth V or any other person is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0000905718-19-000553 · personalis_fm4jun242019.xml · nonDerivative · entry 2

Abingworth LLP · CIK 0001397144 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 4,570,933

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 · ownership.nature: The shares are held by Abingworth Bioventures V LP ("Abingworth V"). Abingworth Bioventures V GP LP ("Abingworth GP") serves as the general partner of Abingworth V. Abingworth General Partner V LLP, serves as the general partner of Abingworth GP. Abingworth V (acting by its general partner Abingworth GP, acting by its general partner Abingworth General Partner V LLP) has delegated to Abingworth LLP ("ALLP"), all investment and dispositive power over the securities held by Abingworth V. ALLP holds the reported securities indirectly through Abingworth V. ALLP disclaims beneficial ownership of such shares, except to the extent of its pecuniary interest therein. This report shall not be deemed an admission that the reporting person, Abingworth V or any other person is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0000905718-19-000553 · personalis_fm4jun242019.xml · nonDerivative · entry 1

Abingworth LLP · CIK 0001397144 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 2,505,716

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 · ownership.nature: The shares are held by Abingworth Bioventures V LP ("Abingworth V"). Abingworth Bioventures V GP LP ("Abingworth GP") serves as the general partner of Abingworth V. Abingworth General Partner V LLP, serves as the general partner of Abingworth GP. Abingworth V (acting by its general partner Abingworth GP, acting by its general partner Abingworth General Partner V LLP) has delegated to Abingworth LLP ("ALLP"), all investment and dispositive power over the securities held by Abingworth V. ALLP holds the reported securities indirectly through Abingworth V. ALLP disclaims beneficial ownership of such shares, except to the extent of its pecuniary interest therein. This report shall not be deemed an admission that the reporting person, Abingworth V or any other person is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0001209191-20-013622 · doc4.xml · derivative · entry 3

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 164,249

Underlying: Common Stock · 101,000 shares

Expires 2022-03-07

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_date: The Shares subject to the option are fully vested and exercisable.