Jerel Davis

SEC source: 0000899243-22-021345 · doc4.xml · nonDerivative · entry 2

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,464,875

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.25 to $12.50, 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 purchased at each separate price within the ranges set forth in this footnote (1) to this Form 4.

F3 · ownership.nature: Shares held by Versant Venture Capital V, L.P. ("VVC V"). Versant Ventures V, LLC ("VV V") is the sole general partner of VVC V. The Reporting Person, a member of the Issuer's board of directors, is a managing director of VV V and may be deemed to share voting and dispositive power over the shares held by VVC V. Each of VV V and the Reporting Person disclaims beneficial ownership of the shares held by VVC V, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-22-021345 · doc4.xml · nonDerivative · entry 1

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 2,344,451

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.25 to $12.50, 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 purchased at each separate price within the ranges set forth in this footnote (1) to this Form 4.

F2 · ownership.nature: Shares held by Versant Venture Capital VI, L.P. ("VVC VI"). Versant Ventures VI GP-GP, LLC ("VV VI GP") is the sole general partner of Versant Ventures VI GP, L.P. ("VV VI") and VV VI is the sole general partner of VVC VI. The Reporting Person, a member of the Issuer's board of directors, is a managing director of VV VI GP and may be deemed to share voting and dispositive power over the shares held by VVC VI. Each of VV VI GP, VV VI and the Reporting Person disclaims beneficial ownership of the shares held by VVC VI, except to the extent of their respective pecuniary interests therein.

SEC source: 0001209191-22-032978 · doc4.xml · derivative · entry 2

Jerel Davis · CIK 0001745958 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,300

Underlying: Common Stock · 3,300 shares

Expires 2023-05-26

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one (1) share of the Issuer's Common Stock upon settlement.

F3 · derivative.exercise_date: 100% of the RSUs will vest on May 26, 2023, subject to the Reporting Person's continued service to the Issuer on the vesting date.

SEC source: 0001209191-22-032978 · doc4.xml · derivative · entry 1

Jerel Davis · CIK 0001745958 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,300

Underlying: Common Stock · 13,300 shares

Expires 2032-05-25

F1 · derivative.exercise_date: 100% of the stock option will vest on May 26, 2023, subject to the Reporting Person's continued service to the Issuer on the vesting date.

SEC source: 0001209191-22-029364 · doc4.xml · derivative · entry 1

Jerel Davis · CIK 0001745958 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,000

Underlying: Common Shares · 49,000 shares

Expires 2032-05-13

F1 · derivative.exercise_date: The option will vest in equal monthly installments over twelve (12) months from the date of grant, subject to Reporting Person continuing to provide service through each such date.

SEC source: 0000899243-22-014101 · doc4.xml · nonDerivative · entry 6

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F9 · kind: Represents a pro-rata distribution, and not a purchase or sale, without additional consideration by Versant Ventures VII GP-GP to its members.

F8 · ownership.nature: Shares held by Versant Ventures VII GP-GP. The Reporting Person, a member of the Issuer's board of directors, is a managing director of Versant Ventures VII GP-GP and may be deemed to share voting and dispositive power over the shares held by Versant Ventures VII GP-GP. The Reporting Person disclaims beneficial ownership of the shares held by Versant Ventures VII GP-GP, except to the extent of his pecuniary interests therein.

SEC source: 0000899243-22-014101 · doc4.xml · nonDerivative · entry 5

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 11,726

F7 · kind: Represents a change in the form of ownership of Versant Ventures VII GP-GP by virtue of the receipt of shares in the pro-rata in-kind distribution of common stock of the Issuer for no consideration by Versant Ventures VII GP.

F8 · ownership.nature: Shares held by Versant Ventures VII GP-GP. The Reporting Person, a member of the Issuer's board of directors, is a managing director of Versant Ventures VII GP-GP and may be deemed to share voting and dispositive power over the shares held by Versant Ventures VII GP-GP. The Reporting Person disclaims beneficial ownership of the shares held by Versant Ventures VII GP-GP, except to the extent of his pecuniary interests therein.

SEC source: 0000899243-22-014101 · doc4.xml · nonDerivative · entry 4

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 732,938

F6 · kind: Represents a change in the form of ownership of the Reporting Person by virtue of the receipt of shares in the pro-rata in-kind distribution of common stock of the Issuer for no consideration by Versant Ventures VII GP.

SEC source: 0000899243-22-014101 · doc4.xml · nonDerivative · entry 3

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F5 · kind: Represents a pro-rata distribution, and not a purchase or sale, without additional consideration by Versant Ventures VII GP to its partners.

F4 · ownership.nature: Shares held by Versant Ventures VII GP. Versant Ventures VII GP-GP is the general partner of Versant Ventures VII GP. The Reporting Person, a member of the Issuer's board of directors, is a managing director of Versant Ventures VII GP-GP and may be deemed to share voting and dispositive power over the shares held by Versant Ventures VII GP. Each of Versant Ventures VII GP-GP and the Reporting Person disclaim beneficial ownership of the shares held by Versant Ventures VII GP, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-22-014101 · doc4.xml · nonDerivative · entry 2

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 14,194

F3 · kind: Represents a change in the form of ownership of Versant Ventures VII GP by virtue of the receipt of shares in the pro-rata in-kind distribution of common stock of the Issuer for no consideration by Versant VII.

F4 · ownership.nature: Shares held by Versant Ventures VII GP. Versant Ventures VII GP-GP is the general partner of Versant Ventures VII GP. The Reporting Person, a member of the Issuer's board of directors, is a managing director of Versant Ventures VII GP-GP and may be deemed to share voting and dispositive power over the shares held by Versant Ventures VII GP. Each of Versant Ventures VII GP-GP and the Reporting Person disclaim beneficial ownership of the shares held by Versant Ventures VII GP, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-22-014101 · doc4.xml · nonDerivative · entry 1

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 2,913,070

F1 · kind: Represents a pro-rata distribution, and not a purchase or sale, without additional consideration by Versant Venture Capital VII, L.P. ("Versant VII") to its partners pursuant to a Rule 10b5-1 trading plan.

F2 · ownership.nature: These securities are held of record by Versant VII. Versant Ventures VII GP, L.P. ("Versant Ventures VII GP") is the general partner of Versant VII, and Versant Ventures VII GP-GP, LLC ("Versant Ventures VII GP-GP") is the general partner of Versant Ventures VII GP. The Reporting Person, a member of the Issuer's board of directors, is a managing director of Versant Ventures VII GP-GP and may be deemed to share voting and dispositive power over the shares held by Versant VII. Each of Versant Ventures VII GP-GP, Versant Ventures VII GP and the Reporting Person disclaims beneficial ownership of the shares held by Versant VII, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-22-000937 · doc4.xml · nonDerivative · entry 3

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 552,149

F1 · kind: The sale of these shares were effected pursuant to Rule 10b5-1 trading plans adopted by each of Versant Venture Capital VII, L.P. ("Versant VII"), Versant Voyageurs I, L.P. ("Versant Voyageurs I") and Versant Voyageurs I Parallel, L.P. ("Versant I Parallel"), respectively.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.00 to $16.31, 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 this footnote (2) to this Form 4.

F5 · ownership.nature: These securities are held of record by Versant I Parallel. Versant Voyageurs I GP, L.P. ("Versant Voyageurs I GP") is the general partner of Versant I Parallel. Versant Ventures VI GP, L.P. ("Versant Ventures VI GP") is the general partner of Versant Voyageurs I GP. Versant Ventures VI GP-GP, LLC ("Versant Ventures VI GP-GP") is the general partner of Versant Ventures VI GP. The Reporting Person, a member of the Issuer's board of directors, is a managing director of Versant Ventures VI GP-GP and may be deemed to share voting and dispositive power over the shares held by Versant I Parallel. Each of Versant Ventures VI GP-GP, Versant Ventures VI GP, Versant Voyageurs I GP and the Reporting Person disclaims beneficial ownership of the shares held by Versant I Parallel, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-22-000937 · doc4.xml · nonDerivative · entry 2

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,863,197

F1 · kind: The sale of these shares were effected pursuant to Rule 10b5-1 trading plans adopted by each of Versant Venture Capital VII, L.P. ("Versant VII"), Versant Voyageurs I, L.P. ("Versant Voyageurs I") and Versant Voyageurs I Parallel, L.P. ("Versant I Parallel"), respectively.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.00 to $16.31, 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 this footnote (2) to this Form 4.

F4 · ownership.nature: These securities are held of record by Versant Voyageurs I. Versant Voyageurs I GP Company is the general partner of Versant Voyageurs I. The Reporting Person, a member of the Issuer's board of directors, is a director of Versant Voyageurs I GP Company and may be deemed to share voting and dispositive power over the shares held by Versant Voyageurs I. Each of Versant Voyageurs I GP Company and the Reporting Person disclaims beneficial ownership of the shares held by Versant Voyageurs I, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-22-000937 · doc4.xml · nonDerivative · entry 1

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 3,623,023

F1 · kind: The sale of these shares were effected pursuant to Rule 10b5-1 trading plans adopted by each of Versant Venture Capital VII, L.P. ("Versant VII"), Versant Voyageurs I, L.P. ("Versant Voyageurs I") and Versant Voyageurs I Parallel, L.P. ("Versant I Parallel"), respectively.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.00 to $16.31, 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 this footnote (2) to this Form 4.

F3 · ownership.nature: These securities are held of record by Versant VII. Versant Ventures VII GP, L.P. ("Versant Ventures VII GP") is the general partner of Versant VII, and Versant Ventures VII GP-GP, LLC ("Versant Ventures VII GP-GP") is the general partner of Versant Ventures VII GP. The Reporting Person, a member of the Issuer's board of directors, is a managing director of Versant Ventures VII GP-GP and may be deemed to share voting and dispositive power over the shares held by Versant VII. Each of Versant VII GP-GP, Versant VII GP and the Reporting Person disclaims beneficial ownership of the shares held by Versant VII, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-21-034628 · doc4.xml · nonDerivative · entry 3

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 644,149

F3 · ownership.nature: These securities are held of record by Versant Voyageurs I Parallel L.P. ("Versant I Parallel"). Versant Voyageurs I GP, L.P. ("Versant Voyageurs I GP") is the general partner of Versant I Parallel. Versant Ventures VI GP, L.P. ("Versant Ventures VI GP") is the general partner of Versant Voyageurs I GP. Versant Ventures VI GP-GP, LLC ("Versant Ventures VI GP-GP") is the general partner of Versant Ventures VI GP. The Reporting Person, a member of the Issuer's board of directors, is a managing director of Versant Ventures VI GP-GP and may be deemed to share voting and dispositive power over the shares held by Versant I Parallel. Each of Versant Ventures VI GP-GP, Versant Ventures VI GP, Versant Voyageurs I GP and the Reporting Person disclaims beneficial ownership of the shares held by Versant I Parallel, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-21-034628 · doc4.xml · nonDerivative · entry 2

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,171,197

F2 · ownership.nature: These securities are held of record by Versant Voyageurs I, L.P. ("Versant Voyageurs I"). Versant Voyageurs I GP Company is the general partner of Versant Voyageurs I. The Reporting Person, a member of the Issuer's board of directors, is a director of Versant Voyageurs I GP Company and may be deemed to share voting and dispositive power over the shares held by Versant Voyageurs I. Each of Versant Voyageurs I GP Company and the Reporting Person disclaims beneficial ownership of the shares held by Versant Voyageurs I, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-21-034628 · doc4.xml · nonDerivative · entry 1

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 4,223,023

F1 · ownership.nature: These securities are held of record by Versant Venture Capital VII, L.P. ("Versant VII"). Versant Ventures VII GP, L.P. ("Versant Ventures VII GP") is the general partner of Versant VII, and Versant Ventures VII GP-GP, LLC ("Versant Ventures VII GP-GP") is the general partner of Versant Ventures VII GP. The Reporting Person, a member of the Issuer's board of directors, is a managing director of Versant Ventures VII GP-GP and may be deemed to share voting and dispositive power over the shares held by Versant VII. Each of Versant VII GP-GP, Versant VII GP and the Reporting Person disclaims beneficial ownership of the shares held by Versant VII, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-21-032175 · doc4.xml · nonDerivative · entry 6

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F9 · kind: Represents a pro-rata distribution, and not a purchase or sale, without additional consideration by VV I GP-GP, to its members.

F8 · ownership.nature: Shares held by VV I GP-GP. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV I GP-GP and may be deemed to share voting and dispositive power over the shares held by VV I GP-GP; however, he disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.

SEC source: 0000899243-21-032175 · doc4.xml · nonDerivative · entry 5

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 2,260

F7 · kind: Represents a change in the form of ownership of VV I GP-GP by virtue of the receipt of shares in the pro-rata in-kind distribution of common shares of the Issuer for no consideration by VV I GP.

F8 · ownership.nature: Shares held by VV I GP-GP. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV I GP-GP and may be deemed to share voting and dispositive power over the shares held by VV I GP-GP; however, he disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.

SEC source: 0000899243-21-032175 · doc4.xml · nonDerivative · entry 4

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,776

F6 · kind: Represents a change in the form of ownership of the Reporting Person by virtue of the receipt of shares as a result of the pro-rata in-kind distribution of common shares of the Issuer for no consideration by VV I GP.

SEC source: 0000899243-21-032175 · doc4.xml · nonDerivative · entry 3

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F5 · kind: Represents a pro-rata distribution, and not a purchase or sale, without additional consideration by VV I GP, to its partners.

F4 · ownership.nature: Shares held by VV I GP. VV I GP-GP is the sole general partner of VV I GP. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV I GP-GP and may be deemed to share voting and dispositive power over the shares held by VV I GP. Each of VV I GP-GP and the Reporting Person disclaims beneficial ownership of the shares held by VV I GP, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-21-032175 · doc4.xml · nonDerivative · entry 2

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 2,279

F3 · kind: Represents a change in the form of ownership of VV I GP by virtue of the receipt of shares in the pro-rata in-kind distribution of common shares of the Issuer for no consideration by VV I.

F4 · ownership.nature: Shares held by VV I GP. VV I GP-GP is the sole general partner of VV I GP. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV I GP-GP and may be deemed to share voting and dispositive power over the shares held by VV I GP. Each of VV I GP-GP and the Reporting Person disclaims beneficial ownership of the shares held by VV I GP, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-21-032175 · doc4.xml · nonDerivative · entry 1

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 231,211

F1 · kind: Represents a pro-rata distribution, and not a purchase or sale, without additional consideration by Versant Vantage I, L.P. ("VV I") to its partners pursuant to a Rule 10b5-1 trading plan.

F2 · ownership.nature: Shares held by VV I. Versant Vantage I GP-GP, LLC ("VV I GP-GP") is the sole general partner of Versant Vantage I GP, L.P. ("VV I GP") and VV I GP is the sole general partner of VV I. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV I GP-GP and may be deemed to share voting and dispositive power over the shares held by VV I. Each of VV I GP-GP, VV I GP and the Reporting Person disclaims beneficial ownership of the shares held by VV I, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-21-027017 · doc4.xml · derivative · entry 5

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,527,719 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: These shares of Series B Preferred Stock were convertible at any time at the holder's election and automatically converted on a 2.432-for-one basis into shares of the Issuer's common stock immediately upon the closing of the IPO without payment of additional consideration. The Series B Preferred Stock had no expiration date.

F3 · price: These shares of Series B Preferred Stock were convertible at any time at the holder's election and automatically converted on a 2.432-for-one basis into shares of the Issuer's common stock immediately upon the closing of the IPO without payment of additional consideration. The Series B Preferred Stock had no expiration date.

F3 · derivative.exercise_date: These shares of Series B Preferred Stock were convertible at any time at the holder's election and automatically converted on a 2.432-for-one basis into shares of the Issuer's common stock immediately upon the closing of the IPO without payment of additional consideration. The Series B Preferred Stock had no expiration date.

F3 · derivative.expiration_date: These shares of Series B Preferred Stock were convertible at any time at the holder's election and automatically converted on a 2.432-for-one basis into shares of the Issuer's common stock immediately upon the closing of the IPO without payment of additional consideration. The Series B Preferred Stock had no expiration date.

F4 · ownership.nature: These shares are held by Versant Vantage II, L.P. ("VV II"). Versant Vantage II GP-GP, LLC ("VV II GP-GP") is the sole general partner of Versant Vantage II GP, L.P. ("VV II GP") and VV II GP is the sole general partner of VV II. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV II GP-GP and may be deemed to share voting and dispositive power over the shares held by VV II. Each of VV II GP-GP, VV II GP and the Reporting Person disclaims beneficial ownership of the shares held by VV II, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-21-027017 · doc4.xml · derivative · entry 4

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 12,343,727 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: These shares of Series A Preferred Stock were convertible at any time at the holder's election and automatically converted on a 2.432-for-one basis into shares of the Issuer's common stock immediately upon the closing of the Issuer's initial public offering ("IPO") without payment of additional consideration. The Series A Preferred Stock had no expiration date.

F1 · price: These shares of Series A Preferred Stock were convertible at any time at the holder's election and automatically converted on a 2.432-for-one basis into shares of the Issuer's common stock immediately upon the closing of the Issuer's initial public offering ("IPO") without payment of additional consideration. The Series A Preferred Stock had no expiration date.

F1 · derivative.exercise_date: These shares of Series A Preferred Stock were convertible at any time at the holder's election and automatically converted on a 2.432-for-one basis into shares of the Issuer's common stock immediately upon the closing of the Issuer's initial public offering ("IPO") without payment of additional consideration. The Series A Preferred Stock had no expiration date.

F1 · derivative.expiration_date: These shares of Series A Preferred Stock were convertible at any time at the holder's election and automatically converted on a 2.432-for-one basis into shares of the Issuer's common stock immediately upon the closing of the Issuer's initial public offering ("IPO") without payment of additional consideration. The Series A Preferred Stock had no expiration date.

F2 · ownership.nature: These shares are held by Versant Venture Capital VI, L.P. ("VVC VI"). Versant Ventures VI GP-GP, LLC ("VV VI GP") is the sole general partner of Versant Ventures VI GP, L.P. ("VV VI") and VV VI is the sole general partner of VVC VI. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV VI GP and may be deemed to share voting and dispositive power over the shares held by VVC VI. Each of VV VI GP, VV VI and the Reporting Person disclaims beneficial ownership of the shares held by VVC VI, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-21-027017 · doc4.xml · nonDerivative · entry 3

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 1,707,719

F4 · ownership.nature: These shares are held by Versant Vantage II, L.P. ("VV II"). Versant Vantage II GP-GP, LLC ("VV II GP-GP") is the sole general partner of Versant Vantage II GP, L.P. ("VV II GP") and VV II GP is the sole general partner of VV II. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV II GP-GP and may be deemed to share voting and dispositive power over the shares held by VV II. Each of VV II GP-GP, VV II GP and the Reporting Person disclaims beneficial ownership of the shares held by VV II, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-21-027017 · doc4.xml · nonDerivative · entry 2

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 1,527,719

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: These shares of Series B Preferred Stock were convertible at any time at the holder's election and automatically converted on a 2.432-for-one basis into shares of the Issuer's common stock immediately upon the closing of the IPO without payment of additional consideration. The Series B Preferred Stock had no expiration date.

F4 · ownership.nature: These shares are held by Versant Vantage II, L.P. ("VV II"). Versant Vantage II GP-GP, LLC ("VV II GP-GP") is the sole general partner of Versant Vantage II GP, L.P. ("VV II GP") and VV II GP is the sole general partner of VV II. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV II GP-GP and may be deemed to share voting and dispositive power over the shares held by VV II. Each of VV II GP-GP, VV II GP and the Reporting Person disclaims beneficial ownership of the shares held by VV II, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-21-027017 · doc4.xml · nonDerivative · entry 1

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 14,708,398

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: These shares of Series A Preferred Stock were convertible at any time at the holder's election and automatically converted on a 2.432-for-one basis into shares of the Issuer's common stock immediately upon the closing of the Issuer's initial public offering ("IPO") without payment of additional consideration. The Series A Preferred Stock had no expiration date.

F2 · ownership.nature: These shares are held by Versant Venture Capital VI, L.P. ("VVC VI"). Versant Ventures VI GP-GP, LLC ("VV VI GP") is the sole general partner of Versant Ventures VI GP, L.P. ("VV VI") and VV VI is the sole general partner of VVC VI. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV VI GP and may be deemed to share voting and dispositive power over the shares held by VVC VI. Each of VV VI GP, VV VI and the Reporting Person disclaims beneficial ownership of the shares held by VVC VI, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-21-026340 · doc4.xml · derivative · entry 3

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,000

Underlying: Common Stock · 40,000 shares

Expires 2031-06-23

F6 · derivative.exercise_date: 1/36th of the shares subject to such option vest and become exercisable in substantially equal monthly installments on each monthly anniversary of June 24, 2021, subject to the Reporting Person's continuous service to the Issuer on each such date.

SEC source: 0001209191-21-038794 · doc4.xml · derivative · entry 1

Jerel Davis · CIK 0001745958 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,948

Underlying: Common Stock · 5,948 shares

Expires 2031-06-03

F1 · derivative.exercise_date: The option award will fully vest upon the earlier of 1) the Issuer's next annual stockholder meeting, or 2) June 4, 2022, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

SEC source: 0000899243-21-021803 · doc4.xml · nonDerivative · entry 6

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F9 · kind: Represents a pro-rata distribution, and not a purchase or sale, without additional consideration by VV I GP-GP, to its members.

F8 · ownership.nature: Shares held by VV I GP-GP. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV I GP-GP and may be deemed to share voting and dispositive power over the shares held by VV I GP-GP; however, he disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.

SEC source: 0000899243-21-021803 · doc4.xml · nonDerivative · entry 5

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,119

F7 · kind: Represents a change in the form of ownership of VV I GP-GP by virtue of the receipt of shares in the pro-rata in-kind distribution of common shares of the Issuer for no consideration by VV I GP.

F8 · ownership.nature: Shares held by VV I GP-GP. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV I GP-GP and may be deemed to share voting and dispositive power over the shares held by VV I GP-GP; however, he disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.

SEC source: 0000899243-21-021803 · doc4.xml · nonDerivative · entry 4

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,757

F6 · kind: Represents a change in the form of ownership of the Reporting Person by virtue of the receipt of shares as a result of the pro-rata in-kind distribution of common shares of the Issuer for no consideration by VV I GP.

SEC source: 0000899243-21-021803 · doc4.xml · nonDerivative · entry 3

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F5 · kind: Represents a pro-rata distribution, and not a purchase or sale, without additional consideration by VV I GP, to its partners.

F4 · ownership.nature: Shares held by VV I GP. VV I GP-GP is the sole general partner of VV I GP. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV I GP-GP and may be deemed to share voting and dispositive power over the shares held by VV I GP. Each of VV I GP-GP and the Reporting Person disclaims beneficial ownership of the shares held by VV I GP, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-21-021803 · doc4.xml · nonDerivative · entry 2

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,128

F3 · kind: Represents a change in the form of ownership of VV I GP by virtue of the receipt of shares in the pro-rata in-kind distribution of common shares of the Issuer for no consideration by VV I.

F4 · ownership.nature: Shares held by VV I GP. VV I GP-GP is the sole general partner of VV I GP. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV I GP-GP and may be deemed to share voting and dispositive power over the shares held by VV I GP. Each of VV I GP-GP and the Reporting Person disclaims beneficial ownership of the shares held by VV I GP, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-21-021803 · doc4.xml · nonDerivative · entry 1

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 383,282

F1 · kind: Represents a pro-rata distribution, and not a purchase or sale, without additional consideration by Versant Vantage I, L.P. ("VV I"), to its partners.

F2 · ownership.nature: Shares held by VV I. Versant Vantage I GP-GP, LLC ("VV I GP-GP") is the sole general partner of Versant Vantage I GP, L.P. ("VV I GP") and VV I GP is the sole general partner of VV I. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV I GP-GP and may be deemed to share voting and dispositive power over the shares held by VV I. Each of VV I GP-GP, VV I GP and the Reporting Person disclaims beneficial ownership of the shares held by VV I, except to the extent of their respective pecuniary interests therein.

SEC source: 0001209191-21-032787 · doc4.xml · derivative · entry 1

Jerel Davis · CIK 0001745958 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,000

Underlying: Common Stock · 21,000 shares

Expires 2031-05-13

F1 · derivative.exercise_date: The option will vest in equal monthly installments over twelve (12) months from the date of grant, subject to Reporting Person continuing to provide service through each such date.

SEC source: 0000899243-21-018677 · doc4.xml · nonDerivative · entry 12

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,748

F18 · kind: Represents a change in the form of ownership of the Reporting Person by virtue of the receipt of shares as a result of the pro-rata in-kind distribution of common shares of the Issuer for no consideration by VV V (Canada).

SEC source: 0000899243-21-018677 · doc4.xml · nonDerivative · entry 11

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F17 · kind: Represents a pro-rata distribution, and not a purchase or sale, without additional consideration by VV V (Canada), to its partners.

F16 · ownership.nature: Shares held by VV V (Canada). VV V (Canada) GP is the sole general partner of VV V (Canada). The Reporting Person, a member of the Issuer's board of directors, is a director of VV V (Canada) GP and may be deemed to share voting and dispositive power over the shares held by VV V (Canada). Each of VV V (Canada) GP and the Reporting Person disclaims beneficial ownership of the shares held by VV V (Canada), except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-21-018677 · doc4.xml · nonDerivative · entry 10

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 3,473

F15 · kind: Represents a change in the form of ownership of VV V (Canada) by virtue of the receipt of shares in the pro-rata in-kind distribution of common shares of the Issuer for no consideration by VVC V (Canada).

F16 · ownership.nature: Shares held by VV V (Canada). VV V (Canada) GP is the sole general partner of VV V (Canada). The Reporting Person, a member of the Issuer's board of directors, is a director of VV V (Canada) GP and may be deemed to share voting and dispositive power over the shares held by VV V (Canada). Each of VV V (Canada) GP and the Reporting Person disclaims beneficial ownership of the shares held by VV V (Canada), except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-21-018677 · doc4.xml · nonDerivative · entry 9

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 144,879

F13 · kind: Represents a pro-rata distribution, and not a purchase or sale, without additional consideration by Versant Venture Capital V (Canada) LP ("VVC V (Canada)") to its partners pursuant to a Rule 10b5-1 trading plan.

F14 · ownership.nature: Shares held by VVC V (Canada). Versant Ventures V (Canada) GP-GP, Inc. ("VV V (Canada) GP") is the sole general partner of Versant Ventures V (Canada), L.P. ("VV V (Canada)") and VV V (Canada) is the sole general partner of VVC V (Canada). The Reporting Person, a member of the Issuer's board of directors, is a director of VV V (Canada) GP and may be deemed to share voting and dispositive power over the shares held by VVC V (Canada). Each of VV V (Canada), VV V (Canada) GP and the Reporting Person disclaims beneficial ownership of the shares held by VVC V (Canada), except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-21-018677 · doc4.xml · nonDerivative · entry 8

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,836

F12 · kind: Represents a change in the form of ownership of the Reporting Person by virtue of the receipt of shares as a result of the pro-rata in-kind distribution of common shares of the Issuer for no consideration by VV V.

SEC source: 0000899243-21-018677 · doc4.xml · nonDerivative · entry 7

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F11 · kind: Represents a pro-rata distribution, and not a purchase or sale, without additional consideration by VV V, to its members.

F4 · ownership.nature: Shares held by VV V. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV V and may be deemed to share voting and dispositive power over the shares held by VV V; however, he disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.

SEC source: 0000899243-21-018677 · doc4.xml · nonDerivative · entry 6

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 48,528

F10 · kind: Represents a change in the form of ownership of VV V by virtue of the receipt of shares in the pro-rata in-kind distribution of common shares of the Issuer for no consideration by VOAF I.

F4 · ownership.nature: Shares held by VV V. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV V and may be deemed to share voting and dispositive power over the shares held by VV V; however, he disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.

SEC source: 0000899243-21-018677 · doc4.xml · nonDerivative · entry 5

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 63,387

F8 · kind: Represents a pro-rata distribution, and not a purchase or sale, without additional consideration by Versant Ophthalmic Affiliates Fund I, L.P. ("VOAF I") to its partners pursuant to a Rule 10b5-1 trading plan.

F9 · ownership.nature: Shares held by VOAF I. VV V is the sole general partner of VOAF I. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV V and may be deemed to share voting and dispositive power over the shares held by VOAF I. Each of VV V and the Reporting Person disclaims beneficial ownership of the shares held by VOAF I, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-21-018677 · doc4.xml · nonDerivative · entry 4

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 47,008

F7 · kind: Represents a change in the form of ownership of VV V by virtue of the receipt of shares in the pro-rata in-kind distribution of common shares of the Issuer for no consideration by VAF V.

F4 · ownership.nature: Shares held by VV V. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV V and may be deemed to share voting and dispositive power over the shares held by VV V; however, he disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.

SEC source: 0000899243-21-018677 · doc4.xml · nonDerivative · entry 3

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 57,264

F5 · kind: Represents a pro-rata distribution, and not a purchase or sale, without additional consideration by Versant Affiliates Fund V, L.P. ("VAF V") to its partners pursuant to a Rule 10b5-1 trading plan.

F6 · ownership.nature: Shares held by VAF V. VV V is the sole general partner of VAF V. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV V and may be deemed to share voting and dispositive power over the shares held by VAF V. Each of VV V and the Reporting Person disclaims beneficial ownership of the shares held by VAF V, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-21-018677 · doc4.xml · nonDerivative · entry 2

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 45,635

F3 · kind: Represents a change in the form of ownership of VV V by virtue of the receipt of shares in the pro-rata in-kind distribution of common shares of the Issuer for no consideration by VVC V.

F4 · ownership.nature: Shares held by VV V. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV V and may be deemed to share voting and dispositive power over the shares held by VV V; however, he disclaims beneficial ownership of such securities, except to the extent of his pecuniary interest therein.

SEC source: 0000899243-21-018677 · doc4.xml · nonDerivative · entry 1

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,903,670

F1 · kind: Represents a pro-rata distribution, and not a purchase or sale, without additional consideration by Versant Venture Capital V, L.P. ("VVC V") to its partners pursuant to a Rule 10b5-1 trading plan.

F2 · ownership.nature: Shares held by VVC V. Versant Ventures V, LLC ("VV V") is the sole general partner of VVC V. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV V and may be deemed to share voting and dispositive power over the shares held by VVC V. Each of VV V and the Reporting Person disclaims beneficial ownership of the shares held by VVC V, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-21-026340 · doc4.xml · derivative · entry 2

Jerel Davis · CIK 0001745958 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 3,715,415

Underlying: Common Stock · 1,527,719 shares

Expires not disclosed

F4 · derivative.exercise_price: These shares of the Issuer's Series B Preferred Stock will automatically convert on a 2.432-for-one basis into the number of shares of the Issuer's common stock shown in Column 7 immediately upon closing of the Issuer's IPO without payment of additional consideration. The Series B Preferred Stock has no expiration date.

F2 · kind: This transaction occurred prior to the Issuer's IPO and is being reported on Form 4 solely for purposes of compliance with Rule 16a-2(a) under the Securities Exchange Act of 1934, as amended. The securities covered by such transaction were previously included on the Reporting Person's Form 3.

F4 · derivative.exercise_date: These shares of the Issuer's Series B Preferred Stock will automatically convert on a 2.432-for-one basis into the number of shares of the Issuer's common stock shown in Column 7 immediately upon closing of the Issuer's IPO without payment of additional consideration. The Series B Preferred Stock has no expiration date.

F4 · derivative.expiration_date: These shares of the Issuer's Series B Preferred Stock will automatically convert on a 2.432-for-one basis into the number of shares of the Issuer's common stock shown in Column 7 immediately upon closing of the Issuer's IPO without payment of additional consideration. The Series B Preferred Stock has no expiration date.

F5 · ownership.nature: These shares are held by Versant Vantage II, L.P. ("VV II"). Versant Vantage II GP-GP, LLC ("VV II GP-GP") is the sole general partner of Versant Vantage II GP, L.P. ("VV II GP") and VV II GP is the sole general partner of VV II. The Reporting Person, a member of the Issuer's board of directors, is a managing member of VV II GP-GP and may be deemed to share voting and dispositive power over the shares held by VV II. Each of VV II GP-GP, VV II GP and the Reporting Person disclaims beneficial ownership of the shares held by VV II, except to the extent of their respective pecuniary interests therein.