PSNL

SEC source: 0001209191-20-053885 · doc4.xml · nonDerivative · entry 3

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 112,750

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

F3 · price: The weighted average sale price for the transaction reported was $22.26, and the range of prices was between $22.10 and $22.54. 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: 0001209191-20-053885 · doc4.xml · nonDerivative · entry 2

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 139,278

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 $21.67, and the range of prices was between $21.03 and $22.02. 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: 0001209191-20-053885 · doc4.xml · nonDerivative · entry 1

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 152,750

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: 0001209191-20-051371 · doc4.xml · nonDerivative · entry 1

Tachibana Aaron · CIK 0001401786 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 178,608

F1 · kind: Shares sold to cover tax obligation from settlement of vested restricted stock units.

SEC source: 0001209191-20-051372 · doc4.xml · nonDerivative · entry 1

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 115,298

F1 · kind: Shares sold to cover tax obligation from settlement of vested restricted stock units.

SEC source: 0001209191-20-049658 · doc4.xml · nonDerivative · entry 1

Tachibana Aaron · CIK 0001401786 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 181,071

F1 · kind: Shares sold to cover tax obligation from settlement of vested restricted stock units.

SEC source: 0001209191-20-049655 · doc4.xml · nonDerivative · entry 1

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 116,418

F1 · kind: Shares sold to cover tax obligation from settlement of vested restricted stock units.

SEC source: 0000905718-20-000875 · ownership.xml · nonDerivative · entry 1

Abingworth LLP · CIK 0001397144 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 4,462,452

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: 0001209191-20-047228 · doc4.xml · nonDerivative · entry 1

Lightspeed Venture Partners Select IV, L.P. · CIK 0001805207 · Affiliate of 10% Owner

Liew Jeremy · CIK 0001700539 · Affiliate of 10% Owner

Mhatre Ravi · CIK 0001366050 · Affiliate of 10% Owner

Lightspeed General Partner Select IV, L.P. · CIK 0001813995 · Affiliate of 10% Owner

Lightspeed Ultimate General Partner Select IV, L.L.C. · CIK 0001813999 · Affiliate of 10% Owner

Janmohamed Arif · CIK 0001813938 · Affiliate of 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: 1,774,240

F1 · ownership.direct: Shares held by Lightspeed Venture Partners Select IV, L.P. ("Lightspeed Select IV"). Lightspeed General Partner Select IV, L.P. ("LGP Select IV") is the general partner of Lightspeed Select IV. Lightspeed Ultimate General Partner Select IV, L.L.C. ("LUGP Select IV") is the general partner of LGP Select IV. Jeremy Liew, Ravi Mhatre and Arif Janmohamed are the managers of LUGP Select IV and share voting and dispositive power with respect to the shares held by Lightspeed Select IV. LGP Select IV, LUGP Select IV and Messrs. Liew, Mhatre and Janmohamed disclaim beneficial ownership of the shares held by Lightspeed Select IV except to the extent of their respective pecuniary interests therein.

F1 · ownership.nature: Shares held by Lightspeed Venture Partners Select IV, L.P. ("Lightspeed Select IV"). Lightspeed General Partner Select IV, L.P. ("LGP Select IV") is the general partner of Lightspeed Select IV. Lightspeed Ultimate General Partner Select IV, L.L.C. ("LUGP Select IV") is the general partner of LGP Select IV. Jeremy Liew, Ravi Mhatre and Arif Janmohamed are the managers of LUGP Select IV and share voting and dispositive power with respect to the shares held by Lightspeed Select IV. LGP Select IV, LUGP Select IV and Messrs. Liew, Mhatre and Janmohamed disclaim beneficial ownership of the shares held by Lightspeed Select IV except to the extent of their respective pecuniary interests therein.

SEC source: 0001209191-20-047391 · doc4.xml · nonDerivative · entry 2

LUDLUM KEN · CIK 0001255825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,000

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

F3 · price: The weighted average sale price for the transaction reported was $20.42, and the range of prices was between $20.40 and $20.48 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: 0001209191-20-047391 · doc4.xml · nonDerivative · entry 1

LUDLUM KEN · CIK 0001255825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,470

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 $20.05, and the range of prices was between $19.40 and $20.39 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: 0001209191-20-047402 · doc4.xml · derivative · entry 6

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,346

Underlying: Common Stock · 653 shares

Expires 2023-11-13

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

SEC source: 0001209191-20-047402 · doc4.xml · derivative · entry 5

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 109,336

Underlying: Common Stock · 27,913 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.

F5 · derivative.exercise_date: The shares subject to the option are fully vested and exercisable.

SEC source: 0001209191-20-047402 · doc4.xml · nonDerivative · entry 4

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 116,709

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

F4 · price: The weighted average sale price for the transaction reported was $20.47, and the range of prices was between $20.45 to $20.48 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: 0001209191-20-047402 · doc4.xml · nonDerivative · entry 3

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 117,909

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

F3 · price: The weighted average sale price for the transaction reported was $20.17, and the range of prices was between $19.45 to $20.44 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: 0001209191-20-047402 · doc4.xml · nonDerivative · entry 2

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 145,275

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

F2 · price: The weighted average sales price for the transaction reported was $19.76, and the range of prices was between $19.36 and $20.18 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: 0001209191-20-047402 · doc4.xml · nonDerivative · entry 1

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 148,709

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: 0001209191-20-038758 · doc4.xml · nonDerivative · entry 1

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 120,143

F1 · kind: Shares sold to cover tax obligation from settlement of vested restricted stock units.

SEC source: 0001209191-20-036075 · doc4a.xml · nonDerivative · entry 1

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 121,228

F1 · kind: Shares sold to cover tax obligation from settlement of vested restricted stock units.

SEC source: 0001209191-20-034108 · doc4.xml · nonDerivative · entry 2

Lightspeed Venture Partners Select IV, L.P. · CIK 0001805207 · Affiliate of 10% Owner

Liew Jeremy · CIK 0001700539 · Affiliate of 10% Owner

Mhatre Ravi · CIK 0001366050 · Affiliate of 10% Owner

Lightspeed General Partner Select IV, L.P. · CIK 0001813995 · Affiliate of 10% Owner

Lightspeed Ultimate General Partner Select IV, L.L.C. · CIK 0001813999 · Affiliate of 10% Owner

Janmohamed Arif · CIK 0001813938 · Affiliate of 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: 458,451

F3 · price: This transaction was executed in multiple trades at prices ranging from $13.500 to $14.105. The price reported above reflects the weighted average price. The reporting persons hereby undertake to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F2 · ownership.direct: Shares held by Lightspeed Venture Partners Select IV, L.P. ("Lightspeed Select IV"). Lightspeed General Partner Select IV, L.P. ("LGP Select IV") is the general partner of Lightspeed Select IV. Lightspeed Ultimate General Partner Select IV, L.L.C. ("LUGP Select IV") is the general partner of LGP Select IV. Jeremy Liew, Ravi Mhatre and Arif Janmohamed are the managers of LUGP Select IV and share voting and dispositive power with respect to the shares held by Lightspeed Select IV. LGP Select IV, LUGP Select IV and Messrs. Liew, Mhatre and Janmohamed disclaim beneficial ownership of the shares held by Lightspeed Select IV except to the extent of their respective pecuniary interests therein.

F2 · ownership.nature: Shares held by Lightspeed Venture Partners Select IV, L.P. ("Lightspeed Select IV"). Lightspeed General Partner Select IV, L.P. ("LGP Select IV") is the general partner of Lightspeed Select IV. Lightspeed Ultimate General Partner Select IV, L.L.C. ("LUGP Select IV") is the general partner of LGP Select IV. Jeremy Liew, Ravi Mhatre and Arif Janmohamed are the managers of LUGP Select IV and share voting and dispositive power with respect to the shares held by Lightspeed Select IV. LGP Select IV, LUGP Select IV and Messrs. Liew, Mhatre and Janmohamed disclaim beneficial ownership of the shares held by Lightspeed Select IV except to the extent of their respective pecuniary interests therein.

SEC source: 0001209191-20-034108 · doc4.xml · nonDerivative · entry 1

Lightspeed Venture Partners Select IV, L.P. · CIK 0001805207 · Affiliate of 10% Owner

Liew Jeremy · CIK 0001700539 · Affiliate of 10% Owner

Mhatre Ravi · CIK 0001366050 · Affiliate of 10% Owner

Lightspeed General Partner Select IV, L.P. · CIK 0001813995 · Affiliate of 10% Owner

Lightspeed Ultimate General Partner Select IV, L.L.C. · CIK 0001813999 · Affiliate of 10% Owner

Janmohamed Arif · CIK 0001813938 · Affiliate of 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: 77,797

F1 · price: This transaction was executed in multiple trades at prices ranging from $12.62 to $13.43. The price reported above reflects the weighted average price. The reporting persons hereby undertake to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F2 · ownership.direct: Shares held by Lightspeed Venture Partners Select IV, L.P. ("Lightspeed Select IV"). Lightspeed General Partner Select IV, L.P. ("LGP Select IV") is the general partner of Lightspeed Select IV. Lightspeed Ultimate General Partner Select IV, L.L.C. ("LUGP Select IV") is the general partner of LGP Select IV. Jeremy Liew, Ravi Mhatre and Arif Janmohamed are the managers of LUGP Select IV and share voting and dispositive power with respect to the shares held by Lightspeed Select IV. LGP Select IV, LUGP Select IV and Messrs. Liew, Mhatre and Janmohamed disclaim beneficial ownership of the shares held by Lightspeed Select IV except to the extent of their respective pecuniary interests therein.

F2 · ownership.nature: Shares held by Lightspeed Venture Partners Select IV, L.P. ("Lightspeed Select IV"). Lightspeed General Partner Select IV, L.P. ("LGP Select IV") is the general partner of Lightspeed Select IV. Lightspeed Ultimate General Partner Select IV, L.L.C. ("LUGP Select IV") is the general partner of LGP Select IV. Jeremy Liew, Ravi Mhatre and Arif Janmohamed are the managers of LUGP Select IV and share voting and dispositive power with respect to the shares held by Lightspeed Select IV. LGP Select IV, LUGP Select IV and Messrs. Liew, Mhatre and Janmohamed disclaim beneficial ownership of the shares held by Lightspeed Select IV except to the extent of their respective pecuniary interests therein.

SEC source: 0001209191-20-034273 · doc4.xml · nonDerivative · entry 1

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 121,211

F1 · kind: Shares sold to cover tax obligation from settlement of vested restricted stock units.

SEC source: 0001209191-20-030663 · doc4.xml · derivative · entry 1

BOWMAN A BLAINE · CIK 0001008891 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,000

Underlying: Common Stock · 14,000 shares

Expires 2030-05-14

F1 · derivative.exercise_date: 100% of the shares subject to the option shall vest on the earlier of the one-year anniversary of the grant date or the day prior to the Company's next annual meeting of stockholders. In the event of a change in control (as defined in the Company's 2019 Equity Incentive Plan), the shares underlying the option shall vest and become immediately exercisable prior to the effectiveness of such change in control.

SEC source: 0001209191-20-030665 · doc4.xml · derivative · entry 1

BALTHROP PATRICK J · CIK 0001284839 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,000

Underlying: Common Stock · 14,000 shares

Expires 2030-05-14

F1 · derivative.exercise_date: 100% of the shares subject to the option shall vest on the earlier of the one-year anniversary of the grant date or the day prior to the Company's next annual meeting of stockholders. In the event of a change of control (as defined in the Company's 2019 Equity Incentive Plan), the shares underlying the option shall vest and become immediately exercisable prior to the effectiveness of such change in control.

SEC source: 0001209191-20-030651 · doc4.xml · derivative · entry 1

EASTHAM KARIN · CIK 0001231845 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,000

Underlying: Common Stock · 14,000 shares

Expires 2030-05-14

F1 · derivative.exercise_date: 100% of the shares subject to the option shall vest on the earlier of the one-year anniversary of the grant date or the day prior to the Company's next annual meeting of stockholders. In the event of a change in control (as defined in the Company's 2019 Equity Incentive Plan), the shares underlying the option shall vest and become immediately exercisable prior to the effectiveness of such change in control.

SEC source: 0001209191-20-030660 · doc4.xml · derivative · entry 1

RICCI PAUL · CIK 0001218326 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,000

Underlying: Common Stock · 14,000 shares

Expires 2030-05-14

F1 · derivative.exercise_date: 100% of the shares subject to the option shall vest on the earlier of the one-year anniversary of the grant date or the day prior to the Company's next annual meeting of stockholders. In the event of a change in control (as defined in the Company's 2019 Equity Incentive Plan), the shares underlying the option shall vest and become immediately exercisable prior to the effectiveness of such change in control.

SEC source: 0001209191-20-030657 · doc4.xml · derivative · entry 1

LUDLUM KEN · CIK 0001255825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,000

Underlying: Common Stock · 14,000 shares

Expires 2030-05-14

F1 · derivative.exercise_date: 100% of the shares subject to the option shall vest on the earlier of the one-year anniversary of the grant date or the day prior to the Company's next annual meeting of stockholders. In the event of a change in control (as defined in the Company's 2019 Equity Incentive Plan), the shares underlying the option shall vest and become immediately exercisable prior to the effectiveness of such change in control.

SEC source: 0001209191-20-030653 · doc4.xml · derivative · entry 1

Colowick Alan · CIK 0001316163 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,000

Underlying: Common Stock · 14,000 shares

Expires 2030-05-14

F1 · derivative.exercise_date: 100% of the shares subject to the option shall vest on the earlier of the one-year anniversary of the grant date or the day prior to the Company's next annual meeting of stockholders. In the event of a change in control (as defined in the Company's 2019 Equity Incentive Plan), the shares underlying the option shall vest and become immediately exercisable prior to the effectiveness of such change in control.

SEC source: 0001209191-20-030655 · doc4.xml · derivative · entry 1

MacQuitty Jonathan · CIK 0001779844 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,000

Underlying: Common Stock · 14,000 shares

Expires 2030-05-14

F1 · derivative.exercise_date: 100% of the shares subject to the option shall vest on the earlier of the one-year anniversary of the grant date or the day prior to the Company's next annual meeting of stockholders. In the event of a change in control (as defined in the Company's 2019 Equity Incentive Plan), the shares underlying the option shall vest and become immediately exercisable prior to the effectiveness of such change in control.

SEC source: 0001209191-20-021561 · doc4.xml · derivative · entry 4

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 137,249

Underlying: Common Stock · 15,000 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: 0001209191-20-021561 · doc4.xml · nonDerivative · entry 2

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 121,500

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: 0001209191-20-021561 · doc4.xml · derivative · entry 3

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 152,249

Underlying: Common Stock · 10,000 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: 0001209191-20-021561 · doc4.xml · nonDerivative · entry 1

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 106,500

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: 0001209191-20-020365 · doc4.xml · derivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 421,000

Underlying: Common Stock · 421,000 shares

Expires 2030-03-16

F2 · derivative.exercise_date: The shares subject to the option will vest in full when the Company's market capitalization, calculated as the closing price of the Company's common stock on the Nasdaq Global Stock Market multiplied by the number of shares of the Company's common stock outstanding, averages over or equal to $1 billion over a 30 calendar day period. Upon a change in control, the vesting of the shares subject to the option will accelerate on a pro rata basis based on the price per share in such change in control transaction multiplied by the number of shares of the Company's common stock outstanding at the time of completion of such transaction divided by $1 billion, with up to 100% of the shares eligible for such accelerated vesting.

SEC source: 0001209191-20-020365 · doc4.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 330,000

Underlying: Common Stock · 330,000 shares

Expires 2030-03-16

F1 · derivative.exercise_date: The shares subject to the option vest in 36 equal monthly installments starting on April 17, 2020.

SEC source: 0001209191-20-020139 · doc4.xml · nonDerivative · entry 1

Tachibana Aaron · CIK 0001401786 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 183,970

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 16 equal quarterly installments with the first installment vesting on June 16, 2020.

F2 · balance_after: Includes 1,470 shares acquired under the Issuer's Employee Stock Purchase Plan on November 1, 2019 which has been corrected from the prior Form 4 filed on December 3, 2019.

SEC source: 0001209191-20-020138 · doc4.xml · nonDerivative · entry 1

Tachibana Aaron · CIK 0001401786 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 183,970

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 16 equal quarterly installments with the first installment vesting on June 16, 2020.

F2 · balance_after: Includes 1,470 shares acquired under the Issuer's Employee Stock Purchase Plan on November 1, 2019 which has been corrected from the prior Form 4 filed on December 3, 2019.

SEC source: 0001209191-20-020141 · doc4.xml · derivative · entry 2

Musil Clinton · CIK 0001779886 · Chief Business Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,000

Underlying: Common Stock · 11,000 shares

Expires 2030-03-16

F2 · derivative.exercise_date: The shares subject to the option vest in 36 equal monthly installments with the first installment vesting on April 16, 2020.

SEC source: 0001209191-20-020141 · doc4.xml · nonDerivative · entry 1

Musil Clinton · CIK 0001779886 · Chief Business Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,000

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 16 equal quarterly installments with the first installment vesting on June 16, 2020.

SEC source: 0001209191-20-020140 · doc4.xml · derivative · entry 2

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,500

Underlying: Common Stock · 37,500 shares

Expires 2030-03-16

F2 · derivative.exercise_date: The shares subject to the option vest in 36 equal monthly installments with the first installment vesting on April 16, 2020.

SEC source: 0001209191-20-020140 · doc4.xml · nonDerivative · entry 1

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 96,500

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 16 equal quarterly installments with the first installment vesting on June 16, 2020.

SEC source: 0001209191-20-018191 · doc4.xml · derivative · entry 3

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 162,249

Underlying: Common Stock · 1,000 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.

F2 · derivative.exercise_date: The shares subject to the option are fully vested and exercisable.

SEC source: 0001209191-20-018191 · doc4.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 by the reporting person.

SEC source: 0001209191-20-018191 · doc4.xml · nonDerivative · entry 1

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,000

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: 0001209191-20-016310 · doc4.xml · derivative · entry 3

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 163,249

Underlying: Common Stock · 1,000 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.

F2 · derivative.exercise_date: The shares subject to the option are fully vested and exercisable.

SEC source: 0001209191-20-016310 · doc4.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 by the reporting person.

SEC source: 0001209191-20-016310 · doc4.xml · nonDerivative · entry 1

Chen Richard · CIK 0001779787 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,000

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: 0001209191-20-013622 · doc4.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 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: 0001209191-20-013622 · doc4.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: 0001209191-20-018188 · doc4a.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.