AMLX

SEC source: 0000899243-22-017084 · doc4.xml · derivative · entry 2

Klee Justin B. · CIK 0001898314 · Director · Co-Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 334,520 shares

Expires 2023-02-16

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: This option is fully vested and exercisable.

SEC source: 0000899243-22-017084 · doc4.xml · nonDerivative · entry 1

Klee Justin B. · CIK 0001898314 · Director · Co-Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,898,585

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: 0000899243-22-008101 · doc4.xml · derivative · entry 2

Mazzariello Gina · CIK 0001913765 · Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 182,000

Underlying: Common Stock · 182,000 shares

Expires 2032-02-22

F2 · derivative.exercise_date: 1/4 of the shares subject to the option shall vest and become exercisable on the one year anniversary of the date of grant, and the remaining shares shall vest 1/48 monthly over the 36 months thereafter, subject to the Reporting Person's continuous service to the Issuer through such vesting date.

SEC source: 0000899243-22-008101 · doc4.xml · nonDerivative · entry 1

Mazzariello Gina · CIK 0001913765 · Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,000

F1 · shares: The reported transaction involves the Reporting Person's receipt of a restricted stock unit award (a "RSU"). The RSU shall vest in 4 equal annual installments, with the first installment vesting on the one year anniversary of the date of grant, subject to the Reporting Person's continued service to the Issuer through such vesting date.

SEC source: 0000899243-22-012474 · doc4.xml · derivative · entry 1

FRATES JAMES M · CIK 0001235598 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,000

Underlying: Common Stock · 25,000 shares

Expires 2032-02-11

F1 · derivative.exercise_date: 1/4 of the shares subject to the option shall vest and become exercisable on the one year anniversary of the date of grant, and the remaining shares shall vest monthly over the remaining 36 months, subject to the Reporting Person's continuous service to the Issuer through such vesting date.

SEC source: 0001140361-22-001654 · form4.xml · nonDerivative · entry 2

VIKING GLOBAL INVESTORS LP · CIK 0001103804 · 10% owner

Viking Global Opportunities Illiquid Investments Sub-Master LP · CIK 0001629482 · 10% owner

Viking Global Opportunities Portfolio GP LLC · CIK 0001629472 · 10% owner

Viking Global Opportunities GP LLC · CIK 0001629476 · 10% owner

Viking Global Opportunities Parent GP LLC · CIK 0001886738 · 10% owner

HALVORSEN OLE ANDREAS · CIK 0001133006 · 10% owner

Ott David C. · CIK 0001621842 · 10% owner

Shabet Rose Sharon · CIK 0001711393 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 2,300,000

F1 · ownership.nature: Andreas Halvorsen, David C. Ott and Rose S. Shabet are Executive Committee members of certain management entities, including Viking Global Partners LLC, the general partner of Viking Global Investors LP ("VGI") and Viking Global Opportunities Parent GP LLC ("Parent"), which is the sole member of Viking Global Opportunities GP LLC ("Opportunities GP"), which is the sole member of Viking Global Opportunities Portfolio GP LLC ("Opportunities Portfolio GP"). VGI provides managerial services to various investment funds and vehicles, including Viking Global Opportunities Illiquid Investments Sub-Master LP ("Opportunities Fund") and DRAGSA 96 LLC ("DRAGSA 96"). Each of VGI, Parent, Opportunities GP, Mr. Halvorsen, Mr. Ott and Ms. Shabet (collectively the "Reporting Persons") may be deemed to beneficially own all of the securities reported on this form.

F4 · ownership.nature: The Reporting Persons disclaim beneficial ownership of these securities except to the extent of their pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

F6 · ownership.nature: These shares are held directly by DRAGSA 96. Because of the relationship between VGI and DRAGSA 96, VGI may be deemed to beneficially own the shares held directly by DRAGSA 96.

F7 · ownership.nature: The membership interests of DRAGSA 96 are held by Viking Global Opportunities Intermediate LP and Viking Global Opportunities LP. Opportunities GP is the general partner of Viking Global Opportunities Intermediate LP and Viking Global Opportunities LP. Because of the relationship between Parent, Opportunities GP and DRAGSA 96, each of Parent and Opportunities GP may be deemed to beneficially own the shares of Common Stock held directly by DRAGSA 96.

SEC source: 0001140361-22-001654 · form4.xml · nonDerivative · entry 1

VIKING GLOBAL INVESTORS LP · CIK 0001103804 · 10% owner

Viking Global Opportunities Illiquid Investments Sub-Master LP · CIK 0001629482 · 10% owner

Viking Global Opportunities Portfolio GP LLC · CIK 0001629472 · 10% owner

Viking Global Opportunities GP LLC · CIK 0001629476 · 10% owner

Viking Global Opportunities Parent GP LLC · CIK 0001886738 · 10% owner

HALVORSEN OLE ANDREAS · CIK 0001133006 · 10% owner

Ott David C. · CIK 0001621842 · 10% owner

Shabet Rose Sharon · CIK 0001711393 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 4,870,536

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 · price: Each share of Series C-1 preferred stock was convertible on a one-for-one basis into Common Stock at any time at the election of the Reporting Persons and automatically converted upon the closing of the Issuer's initial public offering into the number of shares of the Issuer's Common Stock shown in column 3 of Table II without payment or further consideration. The Series C-1 Preferred stock had no expiration date.

F1 · ownership.nature: Andreas Halvorsen, David C. Ott and Rose S. Shabet are Executive Committee members of certain management entities, including Viking Global Partners LLC, the general partner of Viking Global Investors LP ("VGI") and Viking Global Opportunities Parent GP LLC ("Parent"), which is the sole member of Viking Global Opportunities GP LLC ("Opportunities GP"), which is the sole member of Viking Global Opportunities Portfolio GP LLC ("Opportunities Portfolio GP"). VGI provides managerial services to various investment funds and vehicles, including Viking Global Opportunities Illiquid Investments Sub-Master LP ("Opportunities Fund") and DRAGSA 96 LLC ("DRAGSA 96"). Each of VGI, Parent, Opportunities GP, Mr. Halvorsen, Mr. Ott and Ms. Shabet (collectively the "Reporting Persons") may be deemed to beneficially own all of the securities reported on this form.

F2 · ownership.nature: These shares are held directly by Opportunities Fund. Because of the relationship between VGI and Opportunities Fund, VGI may be deemed to beneficially own the shares held directly by Opportunities Fund.

F3 · ownership.nature: Opportunities Portfolio GP is the general partner of Opportunities Fund. Because of the relationship between Parent, Opportunities GP, Opportunities Portfolio GP and Opportunities Fund, each of Parent, Opportunities GP and Opportunities Portfolio GP may be deemed to beneficially own the shares held directly by Opportunities Fund.

F4 · ownership.nature: The Reporting Persons disclaim beneficial ownership of these securities except to the extent of their pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.

SEC source: 0000899243-22-003157 · doc4.xml · derivative · entry 6

Morningside Venture Investments Ltd · CIK 0001543112 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,621,544 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: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F2 · ownership.direct: Frances Anne Elizabeth Richard, Jill Marie Franklin, Peter Stuart Allenby Edwards and Cheung Ka Ho, are the directors of Morningside and share voting and dispositive power with respect to the securities held by Morningside Venture Investments Limited ("Morningside") and MVIL, LLC ("MVIL LLC"), Morningside's wholly-owned subsidiary. Cheng Yee Wing and Wong See Wai are the managers of MVIL LLC and share voting and dispositive power with respect to the securities held by MVIL LLC. Ms. Cheng and Mr. Wong each disclaim ownership of the securities owned by MVIL LLC.

F3 · ownership.direct: The shares of Series C-2 Preferred Stock and the Common Stock received upon conversion of the C-2 Preferred Stock are held by MVIL LLC.

SEC source: 0000899243-22-003157 · doc4.xml · derivative · entry 5

Morningside Venture Investments Ltd · CIK 0001543112 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 974,107 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: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F2 · ownership.direct: Frances Anne Elizabeth Richard, Jill Marie Franklin, Peter Stuart Allenby Edwards and Cheung Ka Ho, are the directors of Morningside and share voting and dispositive power with respect to the securities held by Morningside Venture Investments Limited ("Morningside") and MVIL, LLC ("MVIL LLC"), Morningside's wholly-owned subsidiary. Cheng Yee Wing and Wong See Wai are the managers of MVIL LLC and share voting and dispositive power with respect to the securities held by MVIL LLC. Ms. Cheng and Mr. Wong each disclaim ownership of the securities owned by MVIL LLC.

SEC source: 0000899243-22-003157 · doc4.xml · derivative · entry 4

Morningside Venture Investments Ltd · CIK 0001543112 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 6,410,964 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: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F2 · ownership.direct: Frances Anne Elizabeth Richard, Jill Marie Franklin, Peter Stuart Allenby Edwards and Cheung Ka Ho, are the directors of Morningside and share voting and dispositive power with respect to the securities held by Morningside Venture Investments Limited ("Morningside") and MVIL, LLC ("MVIL LLC"), Morningside's wholly-owned subsidiary. Cheng Yee Wing and Wong See Wai are the managers of MVIL LLC and share voting and dispositive power with respect to the securities held by MVIL LLC. Ms. Cheng and Mr. Wong each disclaim ownership of the securities owned by MVIL LLC.

SEC source: 0000899243-22-003157 · doc4.xml · derivative · entry 3

Morningside Venture Investments Ltd · CIK 0001543112 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,409,035 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: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F2 · ownership.direct: Frances Anne Elizabeth Richard, Jill Marie Franklin, Peter Stuart Allenby Edwards and Cheung Ka Ho, are the directors of Morningside and share voting and dispositive power with respect to the securities held by Morningside Venture Investments Limited ("Morningside") and MVIL, LLC ("MVIL LLC"), Morningside's wholly-owned subsidiary. Cheng Yee Wing and Wong See Wai are the managers of MVIL LLC and share voting and dispositive power with respect to the securities held by MVIL LLC. Ms. Cheng and Mr. Wong each disclaim ownership of the securities owned by MVIL LLC.

SEC source: 0000899243-22-003157 · doc4.xml · nonDerivative · entry 2

Morningside Venture Investments Ltd · CIK 0001543112 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,678,808

F2 · ownership.direct: Frances Anne Elizabeth Richard, Jill Marie Franklin, Peter Stuart Allenby Edwards and Cheung Ka Ho, are the directors of Morningside and share voting and dispositive power with respect to the securities held by Morningside Venture Investments Limited ("Morningside") and MVIL, LLC ("MVIL LLC"), Morningside's wholly-owned subsidiary. Cheng Yee Wing and Wong See Wai are the managers of MVIL LLC and share voting and dispositive power with respect to the securities held by MVIL LLC. Ms. Cheng and Mr. Wong each disclaim ownership of the securities owned by MVIL LLC.

SEC source: 0000899243-22-003157 · doc4.xml · nonDerivative · entry 1

Morningside Venture Investments Ltd · CIK 0001543112 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,415,650

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: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F2 · ownership.direct: Frances Anne Elizabeth Richard, Jill Marie Franklin, Peter Stuart Allenby Edwards and Cheung Ka Ho, are the directors of Morningside and share voting and dispositive power with respect to the securities held by Morningside Venture Investments Limited ("Morningside") and MVIL, LLC ("MVIL LLC"), Morningside's wholly-owned subsidiary. Cheng Yee Wing and Wong See Wai are the managers of MVIL LLC and share voting and dispositive power with respect to the securities held by MVIL LLC. Ms. Cheng and Mr. Wong each disclaim ownership of the securities owned by MVIL LLC.

F3 · ownership.direct: The shares of Series C-2 Preferred Stock and the Common Stock received upon conversion of the C-2 Preferred Stock are held by MVIL LLC.

SEC source: 0000899243-22-011432 · doc4a.xml · derivative · entry 6

Morningside Venture Investments Ltd · CIK 0001543112 · 10% owner

MVIL, LLC · CIK 0001914583 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

Underlying: Common Stock · 1,621,544 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: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F2 · ownership.nature: Frances Anne Elizabeth Richard, Jill Marie Franklin, Peter Stuart Allenby Edwards and Cheung Ka Ho, are the directors of Morningside Venture Investments Limited ("Morningside") and share voting and dispositive power with respect to the securities held by Morningside and MVIL, LLC ("MVIL LLC"), Morningside's wholly-owned subsidiary. Cheng Yee Wing Betty and Wong See Wai are the managers of MVIL LLC and share voting and dispositive power with respect to the securities held by MVIL LLC. Ms. Cheng and Mr. Wong each disclaim ownership of the securities owned by MVIL LLC.

F3 · ownership.nature: The shares of Series C-2 Preferred Stock and the Common Stock received upon conversion of the C-2 Preferred Stock are held by MVIL LLC.

SEC source: 0000899243-22-011432 · doc4a.xml · derivative · entry 5

Morningside Venture Investments Ltd · CIK 0001543112 · 10% owner

MVIL, LLC · CIK 0001914583 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 974,107 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: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F2 · ownership.nature: Frances Anne Elizabeth Richard, Jill Marie Franklin, Peter Stuart Allenby Edwards and Cheung Ka Ho, are the directors of Morningside Venture Investments Limited ("Morningside") and share voting and dispositive power with respect to the securities held by Morningside and MVIL, LLC ("MVIL LLC"), Morningside's wholly-owned subsidiary. Cheng Yee Wing Betty and Wong See Wai are the managers of MVIL LLC and share voting and dispositive power with respect to the securities held by MVIL LLC. Ms. Cheng and Mr. Wong each disclaim ownership of the securities owned by MVIL LLC.

SEC source: 0000899243-22-011432 · doc4a.xml · derivative · entry 4

Morningside Venture Investments Ltd · CIK 0001543112 · 10% owner

MVIL, LLC · CIK 0001914583 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 6,410,964 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: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F2 · ownership.nature: Frances Anne Elizabeth Richard, Jill Marie Franklin, Peter Stuart Allenby Edwards and Cheung Ka Ho, are the directors of Morningside Venture Investments Limited ("Morningside") and share voting and dispositive power with respect to the securities held by Morningside and MVIL, LLC ("MVIL LLC"), Morningside's wholly-owned subsidiary. Cheng Yee Wing Betty and Wong See Wai are the managers of MVIL LLC and share voting and dispositive power with respect to the securities held by MVIL LLC. Ms. Cheng and Mr. Wong each disclaim ownership of the securities owned by MVIL LLC.

SEC source: 0000899243-22-011432 · doc4a.xml · derivative · entry 3

Morningside Venture Investments Ltd · CIK 0001543112 · 10% owner

MVIL, LLC · CIK 0001914583 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,409,035 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: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F2 · ownership.nature: Frances Anne Elizabeth Richard, Jill Marie Franklin, Peter Stuart Allenby Edwards and Cheung Ka Ho, are the directors of Morningside Venture Investments Limited ("Morningside") and share voting and dispositive power with respect to the securities held by Morningside and MVIL, LLC ("MVIL LLC"), Morningside's wholly-owned subsidiary. Cheng Yee Wing Betty and Wong See Wai are the managers of MVIL LLC and share voting and dispositive power with respect to the securities held by MVIL LLC. Ms. Cheng and Mr. Wong each disclaim ownership of the securities owned by MVIL LLC.

SEC source: 0000899243-22-011432 · doc4a.xml · nonDerivative · entry 2

Morningside Venture Investments Ltd · CIK 0001543112 · 10% owner

MVIL, LLC · CIK 0001914583 · 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: 10,678,808

F2 · ownership.nature: Frances Anne Elizabeth Richard, Jill Marie Franklin, Peter Stuart Allenby Edwards and Cheung Ka Ho, are the directors of Morningside Venture Investments Limited ("Morningside") and share voting and dispositive power with respect to the securities held by Morningside and MVIL, LLC ("MVIL LLC"), Morningside's wholly-owned subsidiary. Cheng Yee Wing Betty and Wong See Wai are the managers of MVIL LLC and share voting and dispositive power with respect to the securities held by MVIL LLC. Ms. Cheng and Mr. Wong each disclaim ownership of the securities owned by MVIL LLC.

SEC source: 0000899243-22-011432 · doc4a.xml · nonDerivative · entry 1

Morningside Venture Investments Ltd · CIK 0001543112 · 10% owner

MVIL, LLC · CIK 0001914583 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 10,415,650

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: Upon the closing of the Issuer's initial public offering, all shares of Series A, Series B, Series C-1 and Series C-2 Preferred Stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F2 · ownership.nature: Frances Anne Elizabeth Richard, Jill Marie Franklin, Peter Stuart Allenby Edwards and Cheung Ka Ho, are the directors of Morningside Venture Investments Limited ("Morningside") and share voting and dispositive power with respect to the securities held by Morningside and MVIL, LLC ("MVIL LLC"), Morningside's wholly-owned subsidiary. Cheng Yee Wing Betty and Wong See Wai are the managers of MVIL LLC and share voting and dispositive power with respect to the securities held by MVIL LLC. Ms. Cheng and Mr. Wong each disclaim ownership of the securities owned by MVIL LLC.

F3 · ownership.nature: The shares of Series C-2 Preferred Stock and the Common Stock received upon conversion of the C-2 Preferred Stock are held by MVIL LLC.

SEC source: 0000899243-22-016853 · doc4.xml · derivative · entry 4

ALS Invest 1 B.V. · CIK 0001920501 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,826,503 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: Upon the closing of the Issuer's initial public offering, all shares of Series A and Series B preferred stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Upon the closing of the Issuer's initial public offering, all shares of Series A and Series B preferred stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Upon the closing of the Issuer's initial public offering, all shares of Series A and Series B preferred stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F2 · ownership.direct: The Reporting Person is managed by SUNU Ventures BV. Felix-Andre von Coerper is the sole corporate director of SUNU Ventures BV and has voting and dispositive power with respect to the securities held by the Reporting Person.

SEC source: 0000899243-22-016853 · doc4.xml · derivative · entry 3

ALS Invest 1 B.V. · CIK 0001920501 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,129,386 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: Upon the closing of the Issuer's initial public offering, all shares of Series A and Series B preferred stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Upon the closing of the Issuer's initial public offering, all shares of Series A and Series B preferred stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Upon the closing of the Issuer's initial public offering, all shares of Series A and Series B preferred stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F2 · ownership.direct: The Reporting Person is managed by SUNU Ventures BV. Felix-Andre von Coerper is the sole corporate director of SUNU Ventures BV and has voting and dispositive power with respect to the securities held by the Reporting Person.

SEC source: 0000899243-22-016853 · doc4.xml · nonDerivative · entry 2

ALS Invest 1 B.V. · CIK 0001920501 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,955,889

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: Upon the closing of the Issuer's initial public offering, all shares of Series A and Series B preferred stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F2 · ownership.direct: The Reporting Person is managed by SUNU Ventures BV. Felix-Andre von Coerper is the sole corporate director of SUNU Ventures BV and has voting and dispositive power with respect to the securities held by the Reporting Person.

SEC source: 0000899243-22-016853 · doc4.xml · nonDerivative · entry 1

ALS Invest 1 B.V. · CIK 0001920501 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,129,386

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: Upon the closing of the Issuer's initial public offering, all shares of Series A and Series B preferred stock (the "Preferred Stock") automatically converted into the number of shares of the Issuer's Common Stock shown in column 4 of Table I without payment or further consideration. The Preferred Stock had no expiration date.

F2 · ownership.direct: The Reporting Person is managed by SUNU Ventures BV. Felix-Andre von Coerper is the sole corporate director of SUNU Ventures BV and has voting and dispositive power with respect to the securities held by the Reporting Person.

SEC source: 0000899243-22-001521 · doc4.xml · derivative · entry 2

MILNE GEORGE M JR · CIK 0001179552 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,400

Underlying: Common Stock · 8,400 shares

Expires 2032-01-06

F1 · derivative.exercise_date: This option shall vest in full on the date of the Corporation's 2022 Annual Stockholders Meeting, subject to the Reporting Person's continuous service to the Issuer through such vesting date.

SEC source: 0000899243-22-001521 · doc4.xml · nonDerivative · entry 1

MILNE GEORGE M JR · CIK 0001179552 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 221,396

SEC source: 0000899243-22-001518 · doc4.xml · derivative · entry 4

Cohen Joshua B · CIK 0001898644 · Director · Co-Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 337,500

Underlying: Common Stock · 337,500 shares

Expires 2032-01-06

F3 · derivative.exercise_date: 1/4 of the shares subject to the option shall vest and become exercisable on the one year anniversary of the date of grant, and the remaining shares shall vest monthly over the remaining 36 months, subject to the Reporting Person's continuous service to the Issuer through such vesting date.

SEC source: 0000899243-22-001518 · doc4.xml · derivative · entry 3

Cohen Joshua B · CIK 0001898644 · Director · Co-Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,870 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: Upon the closing of the Issuer's initial public offering, all shares of Series C-1 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

F1 · derivative.exercise_date: Upon the closing of the Issuer's initial public offering, all shares of Series C-1 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

F1 · derivative.expiration_date: Upon the closing of the Issuer's initial public offering, all shares of Series C-1 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

SEC source: 0000899243-22-001518 · doc4.xml · nonDerivative · entry 2

Cohen Joshua B · CIK 0001898644 · Director · Co-Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,564,065

F2 · shares: The reported transaction involves the Reporting Person's receipt of a restricted stock unit award (a "RSU"). The RSU shall vest in 4 equal annual installments, with the first installment vesting on the first anniversary of the date of the grant, subject to the Reporting Person's continued service to the Issuer through such vesting date.

SEC source: 0000899243-22-001518 · doc4.xml · nonDerivative · entry 1

Cohen Joshua B · CIK 0001898644 · Director · Co-Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,489,065

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 · shares: Upon the closing of the Issuer's initial public offering, all shares of Series C-1 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

SEC source: 0000899243-22-001516 · doc4.xml · derivative · entry 3

Olinger Margaret · CIK 0001898725 · Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 127,500

Underlying: Common Stock · 127,500 shares

Expires 2032-01-06

F2 · derivative.exercise_date: 1/4 of the shares subject to the option shall vest and become exercisable on the one year anniversary of the date of grant, and the remaining shares shall vest monthly over the remaining 36 months, subject to the Reporting Person's continuous service to the Issuer through such vesting date.

SEC source: 0000899243-22-001516 · doc4.xml · nonDerivative · entry 2

Olinger Margaret · CIK 0001898725 · Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 216,758

SEC source: 0000899243-22-001516 · doc4.xml · nonDerivative · entry 1

Olinger Margaret · CIK 0001898725 · Chief Commercial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 209,916

F1 · shares: The reported transaction involves the Reporting Person's receipt of a restricted stock unit award (a "RSU"). The RSU shall vest in 4 equal annual installments, with the first installment vesting on the first anniversary of the date of the grant, subject to the Reporting Person's continued service to the Issuer through such vesting date.

SEC source: 0000899243-22-001511 · doc4.xml · derivative · entry 4

Klee Justin B. · CIK 0001898314 · Director · Co-Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 337,500

Underlying: Common Stock · 337,500 shares

Expires 2032-01-06

F3 · derivative.exercise_date: 1/4 of the shares subject to the option shall vest and become exercisable on the one year anniversary of the date of grant, and the remaining shares shall vest monthly over the remaining 36 months, subject to the Reporting Person's continuous service to the Issuer through such vesting date.

SEC source: 0000899243-22-001511 · doc4.xml · derivative · entry 3

Klee Justin B. · CIK 0001898314 · Director · Co-Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,870 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: Upon the closing of the Issuer's initial public offering, all shares of Series C-1 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

F1 · derivative.exercise_date: Upon the closing of the Issuer's initial public offering, all shares of Series C-1 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

F1 · derivative.expiration_date: Upon the closing of the Issuer's initial public offering, all shares of Series C-1 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

SEC source: 0000899243-22-001511 · doc4.xml · nonDerivative · entry 2

Klee Justin B. · CIK 0001898314 · Director · Co-Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,564,065

F2 · shares: The reported transaction involves the Reporting Person's receipt of a restricted stock unit award (a "RSU"). The RSU shall vest in 4 equal annual installments, with the first installment vesting on the first anniversary of the date of the grant, subject to the Reporting Person's continued service to the Issuer through such vesting date.

SEC source: 0000899243-22-001511 · doc4.xml · nonDerivative · entry 1

Klee Justin B. · CIK 0001898314 · Director · Co-Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,489,065

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 · shares: Upon the closing of the Issuer's initial public offering, all shares of Series C-1 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

SEC source: 0000899243-22-001527 · doc4.xml · derivative · entry 2

FONTEYNE PAUL R. · CIK 0001727550 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,400

Underlying: Common Stock · 8,400 shares

Expires 2032-01-06

F1 · derivative.exercise_date: This option shall vest in full on the date of the Corporation's 2022 Annual Stockholders Meeting, subject to the Reporting Person's continuous service to the Issuer through such vesting date.

SEC source: 0000899243-22-001527 · doc4.xml · nonDerivative · entry 1

FONTEYNE PAUL R. · CIK 0001727550 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,947

SEC source: 0000899243-22-001525 · doc4.xml · derivative · entry 10

Cheng Isaac · CIK 0001829696 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,400

Underlying: Common Stock · 8,400 shares

Expires 2032-01-06

F3 · derivative.exercise_date: This option shall vest in full on the date of the Corporation's 2022 Annual Stockholders Meeting, subject to the Reporting Person's continuous service to the Issuer through such vesting date.

SEC source: 0000899243-22-001525 · doc4.xml · derivative · entry 9

Cheng Isaac · CIK 0001829696 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,621,544 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: Upon the closing of the Issuer's initial public offering, all shares of Series A , Series B, Series C-1 and Series C-2 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

F1 · derivative.exercise_date: Upon the closing of the Issuer's initial public offering, all shares of Series A , Series B, Series C-1 and Series C-2 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

F1 · derivative.expiration_date: Upon the closing of the Issuer's initial public offering, all shares of Series A , Series B, Series C-1 and Series C-2 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

F2 · ownership.nature: These shares are held directly by Morningside Venture Investments Limited, or Morningside, and MVIL, LLC, a wholly-owned subsidiary of Morningside. The Reporting Person is an investment professional at Morningside Technology Advisory, LLC, an indirect advisor to Morningside and MVIL, LLC and may be deemed to indirectly beneficially own the shares held by Morningside and MVIL, LLC. The Reporting Person has no voting or dispositive power over the shares held by the Morningside shareholder entities and therefore disclaims beneficial ownership of such shares.

SEC source: 0000899243-22-001525 · doc4.xml · derivative · entry 8

Cheng Isaac · CIK 0001829696 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 974,107 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: Upon the closing of the Issuer's initial public offering, all shares of Series A , Series B, Series C-1 and Series C-2 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

F1 · derivative.exercise_date: Upon the closing of the Issuer's initial public offering, all shares of Series A , Series B, Series C-1 and Series C-2 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

F1 · derivative.expiration_date: Upon the closing of the Issuer's initial public offering, all shares of Series A , Series B, Series C-1 and Series C-2 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

F2 · ownership.nature: These shares are held directly by Morningside Venture Investments Limited, or Morningside, and MVIL, LLC, a wholly-owned subsidiary of Morningside. The Reporting Person is an investment professional at Morningside Technology Advisory, LLC, an indirect advisor to Morningside and MVIL, LLC and may be deemed to indirectly beneficially own the shares held by Morningside and MVIL, LLC. The Reporting Person has no voting or dispositive power over the shares held by the Morningside shareholder entities and therefore disclaims beneficial ownership of such shares.

SEC source: 0000899243-22-001525 · doc4.xml · derivative · entry 7

Cheng Isaac · CIK 0001829696 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 6,410,964 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: Upon the closing of the Issuer's initial public offering, all shares of Series A , Series B, Series C-1 and Series C-2 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

F1 · derivative.exercise_date: Upon the closing of the Issuer's initial public offering, all shares of Series A , Series B, Series C-1 and Series C-2 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

F1 · derivative.expiration_date: Upon the closing of the Issuer's initial public offering, all shares of Series A , Series B, Series C-1 and Series C-2 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

F2 · ownership.nature: These shares are held directly by Morningside Venture Investments Limited, or Morningside, and MVIL, LLC, a wholly-owned subsidiary of Morningside. The Reporting Person is an investment professional at Morningside Technology Advisory, LLC, an indirect advisor to Morningside and MVIL, LLC and may be deemed to indirectly beneficially own the shares held by Morningside and MVIL, LLC. The Reporting Person has no voting or dispositive power over the shares held by the Morningside shareholder entities and therefore disclaims beneficial ownership of such shares.

SEC source: 0000899243-22-001525 · doc4.xml · derivative · entry 6

Cheng Isaac · CIK 0001829696 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,409,035 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: Upon the closing of the Issuer's initial public offering, all shares of Series A , Series B, Series C-1 and Series C-2 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

F1 · derivative.exercise_date: Upon the closing of the Issuer's initial public offering, all shares of Series A , Series B, Series C-1 and Series C-2 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

F1 · derivative.expiration_date: Upon the closing of the Issuer's initial public offering, all shares of Series A , Series B, Series C-1 and Series C-2 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

F2 · ownership.nature: These shares are held directly by Morningside Venture Investments Limited, or Morningside, and MVIL, LLC, a wholly-owned subsidiary of Morningside. The Reporting Person is an investment professional at Morningside Technology Advisory, LLC, an indirect advisor to Morningside and MVIL, LLC and may be deemed to indirectly beneficially own the shares held by Morningside and MVIL, LLC. The Reporting Person has no voting or dispositive power over the shares held by the Morningside shareholder entities and therefore disclaims beneficial ownership of such shares.

SEC source: 0000899243-22-001525 · doc4.xml · nonDerivative · entry 5

Cheng Isaac · CIK 0001829696 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,578

SEC source: 0000899243-22-001525 · doc4.xml · nonDerivative · entry 4

Cheng Isaac · CIK 0001829696 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 10,415,650

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: Upon the closing of the Issuer's initial public offering, all shares of Series A , Series B, Series C-1 and Series C-2 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

F2 · ownership.nature: These shares are held directly by Morningside Venture Investments Limited, or Morningside, and MVIL, LLC, a wholly-owned subsidiary of Morningside. The Reporting Person is an investment professional at Morningside Technology Advisory, LLC, an indirect advisor to Morningside and MVIL, LLC and may be deemed to indirectly beneficially own the shares held by Morningside and MVIL, LLC. The Reporting Person has no voting or dispositive power over the shares held by the Morningside shareholder entities and therefore disclaims beneficial ownership of such shares.

SEC source: 0000899243-22-001525 · doc4.xml · nonDerivative · entry 3

Cheng Isaac · CIK 0001829696 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 8,794,106

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: Upon the closing of the Issuer's initial public offering, all shares of Series A , Series B, Series C-1 and Series C-2 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

F2 · ownership.nature: These shares are held directly by Morningside Venture Investments Limited, or Morningside, and MVIL, LLC, a wholly-owned subsidiary of Morningside. The Reporting Person is an investment professional at Morningside Technology Advisory, LLC, an indirect advisor to Morningside and MVIL, LLC and may be deemed to indirectly beneficially own the shares held by Morningside and MVIL, LLC. The Reporting Person has no voting or dispositive power over the shares held by the Morningside shareholder entities and therefore disclaims beneficial ownership of such shares.

SEC source: 0000899243-22-001525 · doc4.xml · nonDerivative · entry 2

Cheng Isaac · CIK 0001829696 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 7,819,999

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: Upon the closing of the Issuer's initial public offering, all shares of Series A , Series B, Series C-1 and Series C-2 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

F2 · ownership.nature: These shares are held directly by Morningside Venture Investments Limited, or Morningside, and MVIL, LLC, a wholly-owned subsidiary of Morningside. The Reporting Person is an investment professional at Morningside Technology Advisory, LLC, an indirect advisor to Morningside and MVIL, LLC and may be deemed to indirectly beneficially own the shares held by Morningside and MVIL, LLC. The Reporting Person has no voting or dispositive power over the shares held by the Morningside shareholder entities and therefore disclaims beneficial ownership of such shares.

SEC source: 0000899243-22-001525 · doc4.xml · nonDerivative · entry 1

Cheng Isaac · CIK 0001829696 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,409,035

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

F1 · price: Upon the closing of the Issuer's initial public offering, all shares of Series A , Series B, Series C-1 and Series C-2 Preferred Stock will convert into the number of shares of Common Stock of the Issuer and have no expiration date.

F2 · ownership.nature: These shares are held directly by Morningside Venture Investments Limited, or Morningside, and MVIL, LLC, a wholly-owned subsidiary of Morningside. The Reporting Person is an investment professional at Morningside Technology Advisory, LLC, an indirect advisor to Morningside and MVIL, LLC and may be deemed to indirectly beneficially own the shares held by Morningside and MVIL, LLC. The Reporting Person has no voting or dispositive power over the shares held by the Morningside shareholder entities and therefore disclaims beneficial ownership of such shares.

SEC source: 0000899243-22-001522 · doc4.xml · derivative · entry 2

Yeramian Patrick D · CIK 0001358266 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 127,500

Underlying: Common Stock · 127,500 shares

Expires 2032-01-06

F2 · derivative.exercise_date: 1/4 of the shares subject to the option shall vest and become exercisable on the one year anniversary of the date of grant, and the remaining shares shall vest monthly over the remaining 36 months, subject to the Reporting Person's continuous service to the Issuer through such vesting date.

SEC source: 0000899243-22-001522 · doc4.xml · nonDerivative · entry 1

Yeramian Patrick D · CIK 0001358266 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 206,333

F1 · shares: The reported transaction involves the Reporting Person's receipt of a restricted stock unit award (a "RSU"). The RSU shall vest in 4 equal annual installments, with the first installment vesting on the first anniversary of the date of the grant, subject to the Reporting Person's continued service to the Issuer through such vesting date.