Rhodes Jason P

SEC source: 0001209191-20-062624 · doc4.xml · nonDerivative · entry 1

Rhodes Jason P · CIK 0001577014 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 2,477,660

F1 · kind: Shares were sold pursuant to a Rule 10b5-1 trading plan.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $44.71 to $45.708 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2), (5), (6), (7), (9), (10), (12), (13), (14), (15), (16) and (17).

F3 · balance_after: The shares reported herein give effect to the pro rata distribution of shares by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X") for no additional consideration to its limited and general partner, Atlas Venture Associates X, L.P. ("AVA X LP") subsequent to the Reporting Person's last Section 16 filing reporting ownership of the Issuer's Common Stock. As the distributions of such shares constituted only a change in the form of the Reporting Person's indirect ownership in such shares, the Reporting Person was not required to report these distributions pursuant to Section 16.

F4 · ownership.nature: The shares are held directly by Atlas Venture Fund X. The general partner of Atlas Venture Fund X is AVA X LP. Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. The Reporting Person is a member of AVA X LLC and disclaims beneficial ownership of such securities held by Atlas Venture Fund X, except to the extent of his pecuniary interest therein, if any.

SEC source: 0000899243-20-026177 · doc4.xml · derivative · entry 4

Rhodes Jason P · CIK 0001577014 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,608,785 shares

Expires not disclosed

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

F3 · derivative.exercise_price: On September 21, 2020, the Series B Preferred Stock automatically converted into Common Stock on a 3.3169-for-one basis without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F3 · derivative.exercise_date: On September 21, 2020, the Series B Preferred Stock automatically converted into Common Stock on a 3.3169-for-one basis without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F3 · derivative.expiration_date: On September 21, 2020, the Series B Preferred Stock automatically converted into Common Stock on a 3.3169-for-one basis without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F4 · ownership.nature: The shares are held directly by Atlas Venture Opportunity Fund I, L.P. ("Atlas Venture Opportunity Fund I"). The general partner of Atlas Venture Opportunity Fund I is Atlas Venture Associates Opportunity I, L.P. ("AVAO I LP"). Atlas Venture Associates Opportunity I, LLC ("AVAO I LLC") is the general partner of AVAO I LP. The reporting person is a member of AVAO I LLC and disclaims beneficial ownership of such securities held by Atlas Venture Opportunity Fund I, except to the extent of his pecuniary interest therein, if any.

SEC source: 0000899243-20-026177 · doc4.xml · derivative · entry 3

Rhodes Jason P · CIK 0001577014 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 6,029,726 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: On September 21, 2020, the Series A Preferred Stock automatically converted into Common Stock on a 3.3169-for-one basis without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F1 · derivative.exercise_date: On September 21, 2020, the Series A Preferred Stock automatically converted into Common Stock on a 3.3169-for-one basis without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F1 · derivative.expiration_date: On September 21, 2020, the Series A Preferred Stock automatically converted into Common Stock on a 3.3169-for-one basis without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F2 · ownership.nature: The shares are held directly by Atlas Venture Fund XI, L.P. ("Atlas Venture Fund XI"). The general partner of Atlas Venture Fund XI is Atlas Venture Associates XI, L.P. ("AVA XI LP"). Atlas Venture Associates XI, LLC ("AVA XI LLC") is the general partner of AVA XI LP. The reporting person is a member of AVA XI LLC and disclaims beneficial ownership of such securities held by Atlas Venture Fund XI, except to the extent of his pecuniary interest therein, if any.

SEC source: 0000899243-20-026177 · doc4.xml · nonDerivative · entry 2

Rhodes Jason P · CIK 0001577014 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 1,608,785

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 · price: On September 21, 2020, the Series B Preferred Stock automatically converted into Common Stock on a 3.3169-for-one basis without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F4 · ownership.nature: The shares are held directly by Atlas Venture Opportunity Fund I, L.P. ("Atlas Venture Opportunity Fund I"). The general partner of Atlas Venture Opportunity Fund I is Atlas Venture Associates Opportunity I, L.P. ("AVAO I LP"). Atlas Venture Associates Opportunity I, LLC ("AVAO I LLC") is the general partner of AVAO I LP. The reporting person is a member of AVAO I LLC and disclaims beneficial ownership of such securities held by Atlas Venture Opportunity Fund I, except to the extent of his pecuniary interest therein, if any.

SEC source: 0000899243-20-026177 · doc4.xml · nonDerivative · entry 1

Rhodes Jason P · CIK 0001577014 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 8,140,130

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: On September 21, 2020, the Series A Preferred Stock automatically converted into Common Stock on a 3.3169-for-one basis without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F2 · ownership.nature: The shares are held directly by Atlas Venture Fund XI, L.P. ("Atlas Venture Fund XI"). The general partner of Atlas Venture Fund XI is Atlas Venture Associates XI, L.P. ("AVA XI LP"). Atlas Venture Associates XI, LLC ("AVA XI LLC") is the general partner of AVA XI LP. The reporting person is a member of AVA XI LLC and disclaims beneficial ownership of such securities held by Atlas Venture Fund XI, except to the extent of his pecuniary interest therein, if any.

SEC source: 0000899243-20-017102 · doc4.xml · derivative · entry 3

Rhodes Jason P · CIK 0001577014 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,518,819 shares

Expires not disclosed

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

F2 · derivative.exercise_price: On June 16, 2020, the Series C Preferred Stock automatically converted into Common Stock on a 1.7663-for-one basis without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F2 · derivative.exercise_date: On June 16, 2020, the Series C Preferred Stock automatically converted into Common Stock on a 1.7663-for-one basis without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F2 · derivative.expiration_date: On June 16, 2020, the Series C Preferred Stock automatically converted into Common Stock on a 1.7663-for-one basis without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F5 · ownership.nature: The shares are held directly by Atlas Venture Opportunity Fund I. The general partner of Atlas Venture Opportunity Fund I is AVAO I LP. AVAO I LLC is the general partner of AVAO I LP. The reporting person is a member of AVAO I LLC and disclaims beneficial ownership of such securities held by Atlas Venture Opportunity Fund I, except to the extent of his pecuniary interest therein, if any.

SEC source: 0000899243-20-017102 · doc4.xml · derivative · entry 2

Rhodes Jason P · CIK 0001577014 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 8,521,213 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: On June 16, 2020, the Series A Preferred Stock automatically converted into Common Stock on a 1.7663-for-one basis without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F1 · derivative.exercise_date: On June 16, 2020, the Series A Preferred Stock automatically converted into Common Stock on a 1.7663-for-one basis without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F1 · derivative.expiration_date: On June 16, 2020, the Series A Preferred Stock automatically converted into Common Stock on a 1.7663-for-one basis without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F4 · ownership.nature: The shares are held directly by Atlas Venture Fund X. The general partner of Atlas Venture Fund X is AVA X LP. AVA X LLC is the general partner of AVA X LP. The reporting person is a member of AVA X LLC and disclaims beneficial ownership of such securities held by Atlas Venture Fund X, except to the extent of his pecuniary interest therein, if any.

SEC source: 0000899243-20-017102 · doc4.xml · nonDerivative · entry 1

Rhodes Jason P · CIK 0001577014 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 12,630,758

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: On June 16, 2020, the Series A Preferred Stock automatically converted into Common Stock on a 1.7663-for-one basis without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F2 · price: On June 16, 2020, the Series C Preferred Stock automatically converted into Common Stock on a 1.7663-for-one basis without payment of further consideration upon closing of the initial public offering of the Issuer's common stock. The shares had no expiration date.

F3 · ownership.nature: Includes 11,111,939 shares held by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X") and 1,518,819 shares held by Atlas Venture Opportunity Fund I, L.P. ("Atlas Venture Opportunity Fund I"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. The reporting person is a member of AVA X LLC and disclaims beneficial ownership of such securities held by Atlas Venture Fund X, except to the extent of his pecuniary interest therein, if any. The general partner of Atlas Venture Opportunity Fund I is Atlas Venture Associates Opportunity I, L.P. ("AVAO I LP"). Atlas Venture Associates Opportunity I, LLC ("AVAO I LLC") is the general partner of AVAO I LP. The reporting person is a member of AVAO I LLC and disclaims beneficial ownership of such securities held by Atlas Venture Opportunity Fund I, except to the extent of his pecuniary interest therein, if any.

SEC source: 0000899243-20-016562 · doc4.xml · derivative · entry 1

Rhodes Jason P · CIK 0001577014 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,000

Underlying: Common Stock · 52,000 shares

Expires 2030-06-10

F1 · derivative.exercise_date: This option was granted on June 11, 2020. The shares underlying the option vest over four years, with 25% of the shares vesting on June 11, 2021 and the remaining shares vesting in equal quarterly installments thereafter.

F2 · ownership.direct: This option was granted to the Reporting Person, a director of the Issuer. The proceeds of any sale of shares of common stock issued to the Reporting Person upon exercise of this option will be transferred to Atlas Venture Life Science Advisors, LLC and as such, the Reporting Person disclaims ownership of such securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, except to the extent of his pecuniary interest therein, if any.

SEC source: 0001104659-20-042504 · a4.xml · derivative · entry 1

Rhodes Jason P · CIK 0001577014 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,500

Underlying: Common Stock · 16,500 shares

Expires 2030-04-01

F1 · derivative.exercise_date: This option was granted on April 1, 2020 with respect to 16,500 shares of the Issuer's common stock and vests in full on April 1, 2021.

F2 · ownership.direct: The Reporting Person is a member of Atlas Venture Associates X, LLC and is obligated to transfer the economic benefit, if any, received upon the sale of the shares issuable upon exercise of the option to Atlas Venture Life Science Advisors, LLC. As such, the Reporting Person disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, except to the extent of his pecuniary interest therein, if any.

SEC source: 0001209191-19-057475 · doc4.xml · nonDerivative · entry 1

Rhodes Jason P · CIK 0001577014 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,100,000

F1 · ownership.nature: The shares are held directly by Atlas Venture Opportunity Fund I, L.P. ("Atlas Venture Opportunity Fund I"). The general partner of Atlas Venture Opportunity Fund I is Atlas Venture Associates Opportunity I, L.P. ("AVAO I LP"). Atlas Venture Associates Opportunity I, LLC ("AVAO I LLC") is the general partner of AVAO I LP. Each of AVAO I LP and AVAO I LLC disclaims Section 16 beneficial ownership of the securities help by Atlas Venture Opportunity Fund I, except to the extent of its pecuniary interest therein. The Reporting Person is a member of AVAO I LLC and disclaims beneficial ownership of such securities held by Atlas Venture Opportunity Fund I, except to the extent of his pecuniary interest therein, if any.

SEC source: 0001104659-19-019704 · a4.xml · derivative · entry 1

Rhodes Jason P · CIK 0001577014 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,500

Underlying: Common Stock · 13,500 shares

Expires 2029-04-01

F1 · derivative.exercise_date: This option was granted on April 1, 2019 with respect to 13,500 shares of the Issuer's common stock and vests in full on April 1, 2020.

F2 · ownership.direct: The Reporting Person is a member of Atlas Venture Associates X, LLC and is obligated to transfer the economic benefit, if any, received upon the sale of the shares issuable upon exercise of the option to Atlas Venture Life Science Advisors, LLC. As such, the Reporting Person disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, except to the extent of his pecuniary interest therein, if any.

SEC source: 0001104659-18-047449 · a4.xml · derivative · entry 5

Rhodes Jason P · CIK 0001577014 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,500

Underlying: Common Stock · 13,500 shares

Expires 2028-07-19

F4 · derivative.exercise_date: This option was granted on July 19, 2018 subject to the completion of the Issuer's initial public offering, which closed on July 24, 2018. 25% of the shares underlying this stock option vest on July 19, 2019 and the remainder of the shares underlying this stock option vest in 24 equal monthly installments thereafter.

SEC source: 0001104659-18-047449 · a4.xml · derivative · entry 4

Rhodes Jason P · CIK 0001577014 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,013,547 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: In connection with the closing of the Issuer's initial public offering, each share of the Issuer's series A convertible preferred stock and series B convertible preferred stock (collectively, the "Preferred Stock") converted into shares of the Issuer's common stock on a 1-for-9.94688 basis without payment or consideration. The Preferred Stock had no expiration date.

F3 · shares: Reflects the number of series A convertible preferred stock or series B convertible preferred stock, as applicable held by the Reporting Person on an as-converted to common stock basis.

F1 · derivative.exercise_date: In connection with the closing of the Issuer's initial public offering, each share of the Issuer's series A convertible preferred stock and series B convertible preferred stock (collectively, the "Preferred Stock") converted into shares of the Issuer's common stock on a 1-for-9.94688 basis without payment or consideration. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: In connection with the closing of the Issuer's initial public offering, each share of the Issuer's series A convertible preferred stock and series B convertible preferred stock (collectively, the "Preferred Stock") converted into shares of the Issuer's common stock on a 1-for-9.94688 basis without payment or consideration. The Preferred Stock had no expiration date.

F3 · derivative.underlying_shares: Reflects the number of series A convertible preferred stock or series B convertible preferred stock, as applicable held by the Reporting Person on an as-converted to common stock basis.

F2 · ownership.nature: The shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. The Reporting Person is a member of AVA X LLC and disclaims beneficial ownership of such securities held by Atlas Venture Fund X, except to the extent of his pecuniary interest therein, if any.

SEC source: 0001104659-18-047449 · a4.xml · derivative · entry 3

Rhodes Jason P · CIK 0001577014 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 3,439,839 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: In connection with the closing of the Issuer's initial public offering, each share of the Issuer's series A convertible preferred stock and series B convertible preferred stock (collectively, the "Preferred Stock") converted into shares of the Issuer's common stock on a 1-for-9.94688 basis without payment or consideration. The Preferred Stock had no expiration date.

F3 · shares: Reflects the number of series A convertible preferred stock or series B convertible preferred stock, as applicable held by the Reporting Person on an as-converted to common stock basis.

F1 · derivative.exercise_date: In connection with the closing of the Issuer's initial public offering, each share of the Issuer's series A convertible preferred stock and series B convertible preferred stock (collectively, the "Preferred Stock") converted into shares of the Issuer's common stock on a 1-for-9.94688 basis without payment or consideration. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: In connection with the closing of the Issuer's initial public offering, each share of the Issuer's series A convertible preferred stock and series B convertible preferred stock (collectively, the "Preferred Stock") converted into shares of the Issuer's common stock on a 1-for-9.94688 basis without payment or consideration. The Preferred Stock had no expiration date.

F3 · derivative.underlying_shares: Reflects the number of series A convertible preferred stock or series B convertible preferred stock, as applicable held by the Reporting Person on an as-converted to common stock basis.

F2 · ownership.nature: The shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. The Reporting Person is a member of AVA X LLC and disclaims beneficial ownership of such securities held by Atlas Venture Fund X, except to the extent of his pecuniary interest therein, if any.

SEC source: 0001104659-18-047449 · a4.xml · nonDerivative · entry 2

Rhodes Jason P · CIK 0001577014 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 4,453,386

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: In connection with the closing of the Issuer's initial public offering, each share of the Issuer's series A convertible preferred stock and series B convertible preferred stock (collectively, the "Preferred Stock") converted into shares of the Issuer's common stock on a 1-for-9.94688 basis without payment or consideration. The Preferred Stock had no expiration date.

F2 · ownership.nature: The shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. The Reporting Person is a member of AVA X LLC and disclaims beneficial ownership of such securities held by Atlas Venture Fund X, except to the extent of his pecuniary interest therein, if any.

SEC source: 0001104659-18-047449 · a4.xml · nonDerivative · entry 1

Rhodes Jason P · CIK 0001577014 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 3,439,839

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: In connection with the closing of the Issuer's initial public offering, each share of the Issuer's series A convertible preferred stock and series B convertible preferred stock (collectively, the "Preferred Stock") converted into shares of the Issuer's common stock on a 1-for-9.94688 basis without payment or consideration. The Preferred Stock had no expiration date.

F2 · ownership.nature: The shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. The Reporting Person is a member of AVA X LLC and disclaims beneficial ownership of such securities held by Atlas Venture Fund X, except to the extent of his pecuniary interest therein, if any.