ALMS

SEC source: 0001415889-24-018595 · form4-07012024_080757.xml · nonDerivative · entry 3

Goldstein David M · CIK 0001751719 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Family Members

Disclosed balance after: 0

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F1 · price: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F3 · ownership.nature: Shares are held directly by family members of Reporting Person residing in his primary residence.

SEC source: 0001415889-24-018595 · form4-07012024_080757.xml · nonDerivative · entry 2

Goldstein David M · CIK 0001751719 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 213,903

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F1 · price: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F2 · ownership.nature: Shares are held directly by the Baily Goldstein Living Trust dated March 4, 2014, for which the Reporting Person serves as a trustee.

SEC source: 0001415889-24-018595 · form4-07012024_080757.xml · nonDerivative · entry 1

Goldstein David M · CIK 0001751719 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 0

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F1 · price: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F2 · ownership.nature: Shares are held directly by the Baily Goldstein Living Trust dated March 4, 2014, for which the Reporting Person serves as a trustee.

SEC source: 0001415889-24-018592 · form4-07012024_080720.xml · derivative · entry 17

Drappa Jorn · CIK 0001789317 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,171

Underlying: Common Stock · 64,171 shares

Expires 2034-06-05

F2 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F9 · derivative.exercise_date: 25% of the shares underlying this option vest on June 6, 2025, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018592 · form4-07012024_080720.xml · derivative · entry 16

Drappa Jorn · CIK 0001789317 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 64,171 shares

Expires 2034-06-05

F2 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F9 · derivative.exercise_date: 25% of the shares underlying this option vest on June 6, 2025, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018592 · form4-07012024_080720.xml · derivative · entry 15

Drappa Jorn · CIK 0001789317 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,802

Underlying: Common Stock · 70,802 shares

Expires 2034-05-05

F2 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F8 · derivative.exercise_date: The option vests in three equal installments, subject to the Issuer's satisfaction of certain performance criteria on each of May 6, 2028, May 6, 2029 and May 6, 2030, and subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018592 · form4-07012024_080720.xml · derivative · entry 14

Drappa Jorn · CIK 0001789317 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 70,802 shares

Expires 2034-05-05

F2 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F8 · derivative.exercise_date: The option vests in three equal installments, subject to the Issuer's satisfaction of certain performance criteria on each of May 6, 2028, May 6, 2029 and May 6, 2030, and subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018592 · form4-07012024_080720.xml · derivative · entry 13

Drappa Jorn · CIK 0001789317 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,545

Underlying: Common Stock · 54,545 shares

Expires 2034-03-28

F2 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F7 · derivative.exercise_date: 25% of the shares underlying this option vest on March 29, 2025, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018592 · form4-07012024_080720.xml · derivative · entry 12

Drappa Jorn · CIK 0001789317 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 54,545 shares

Expires 2034-03-28

F2 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F7 · derivative.exercise_date: 25% of the shares underlying this option vest on March 29, 2025, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018592 · form4-07012024_080720.xml · derivative · entry 11

Drappa Jorn · CIK 0001789317 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,652

Underlying: Common Stock · 18,652 shares

Expires 2033-10-08

F2 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F6 · derivative.exercise_date: 25% of the shares underlying this option vest on October 9, 2024, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018592 · form4-07012024_080720.xml · derivative · entry 10

Drappa Jorn · CIK 0001789317 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 18,652 shares

Expires 2033-10-08

F2 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F6 · derivative.exercise_date: 25% of the shares underlying this option vest on October 9, 2024, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018592 · form4-07012024_080720.xml · derivative · entry 9

Drappa Jorn · CIK 0001789317 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,834

Underlying: Common Stock · 12,834 shares

Expires 2033-06-22

F2 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F5 · derivative.exercise_date: 25% of the shares underlying this option vested on May 22, 2024, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018592 · form4-07012024_080720.xml · derivative · entry 8

Drappa Jorn · CIK 0001789317 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 12,834 shares

Expires 2033-06-22

F2 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F5 · derivative.exercise_date: 25% of the shares underlying this option vested on May 22, 2024, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018592 · form4-07012024_080720.xml · derivative · entry 7

Drappa Jorn · CIK 0001789317 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 171,122

Underlying: Common Stock · 171,122 shares

Expires 2032-08-29

F2 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F4 · derivative.exercise_date: 25% of the shares underlying this option vested on August 22, 2023, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018592 · form4-07012024_080720.xml · derivative · entry 6

Drappa Jorn · CIK 0001789317 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 171,122 shares

Expires 2032-08-29

F2 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F4 · derivative.exercise_date: 25% of the shares underlying this option vested on August 22, 2023, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018592 · form4-07012024_080720.xml · derivative · entry 5

Drappa Jorn · CIK 0001789317 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,561

Underlying: Common Stock · 85,561 shares

Expires 2032-08-29

F2 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F3 · derivative.exercise_date: 33% of the shares underlying this option vested on August 22, 2024, and the remaining shares vest in equal monthly installments thereafter over the following 48 months, subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018592 · form4-07012024_080720.xml · derivative · entry 4

Drappa Jorn · CIK 0001789317 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 85,561 shares

Expires 2032-08-29

F2 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F3 · derivative.exercise_date: 33% of the shares underlying this option vested on August 22, 2024, and the remaining shares vest in equal monthly installments thereafter over the following 48 months, subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018592 · form4-07012024_080720.xml · derivative · entry 3

Drappa Jorn · CIK 0001789317 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,347

Underlying: Common Stock · 5,347 shares

Expires 2034-06-26

F2 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F1 · derivative.exercise_date: 25% of the shares underlying this option vest on June 21, 2025, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018592 · form4-07012024_080720.xml · derivative · entry 2

Drappa Jorn · CIK 0001789317 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 5,347 shares

Expires 2034-06-26

F2 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F1 · derivative.exercise_date: 25% of the shares underlying this option vest on June 21, 2025, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018589 · form4-07012024_080750.xml · derivative · entry 21

Babler Martin · CIK 0001435618 · Director · President, CEO and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 245,989

Underlying: Common Stock · 245,989 shares

Expires 2034-06-05

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F11 · derivative.exercise_date: 25% of the shares underlying this option vest on June 6, 2025, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018589 · form4-07012024_080750.xml · derivative · entry 20

Babler Martin · CIK 0001435618 · Director · President, CEO and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 245,989 shares

Expires 2034-06-05

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F11 · derivative.exercise_date: 25% of the shares underlying this option vest on June 6, 2025, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018589 · form4-07012024_080750.xml · derivative · entry 19

Babler Martin · CIK 0001435618 · Director · President, CEO and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 478,288

Underlying: Common Stock · 478,288 shares

Expires 2034-05-05

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F10 · derivative.exercise_date: The option vests in three equal installments, subject to the Issuer's satisfaction of certain performance criteria on each of May 6, 2028, May 6, 2029 and May 6, 2030, and subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018589 · form4-07012024_080750.xml · derivative · entry 18

Babler Martin · CIK 0001435618 · Director · President, CEO and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 478,288 shares

Expires 2034-05-05

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F10 · derivative.exercise_date: The option vests in three equal installments, subject to the Issuer's satisfaction of certain performance criteria on each of May 6, 2028, May 6, 2029 and May 6, 2030, and subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018589 · form4-07012024_080750.xml · derivative · entry 17

Babler Martin · CIK 0001435618 · Director · President, CEO and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 241,210

Underlying: Common Stock · 241,210 shares

Expires 2034-03-28

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F9 · derivative.exercise_date: 25% of the shares underlying this option vest on March 29, 2025, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and subject to the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018589 · form4-07012024_080750.xml · derivative · entry 16

Babler Martin · CIK 0001435618 · Director · President, CEO and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 241,210 shares

Expires 2034-03-28

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F9 · derivative.exercise_date: 25% of the shares underlying this option vest on March 29, 2025, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and subject to the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018589 · form4-07012024_080750.xml · derivative · entry 15

Babler Martin · CIK 0001435618 · Director · President, CEO and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 107,028

Underlying: Common Stock · 107,028 shares

Expires 2033-10-08

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F8 · derivative.exercise_date: 25% of the shares underlying this option vest on October 9, 2024, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and subject to the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018589 · form4-07012024_080750.xml · derivative · entry 14

Babler Martin · CIK 0001435618 · Director · President, CEO and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 107,028 shares

Expires 2033-10-08

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F8 · derivative.exercise_date: 25% of the shares underlying this option vest on October 9, 2024, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and subject to the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018589 · form4-07012024_080750.xml · derivative · entry 13

Babler Martin · CIK 0001435618 · Director · President, CEO and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 263,101

Underlying: Common Stock · 263,101 shares

Expires 2033-06-22

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F7 · derivative.exercise_date: 25% of the shares underlying this option vested on May 22, 2024, and the remaining shares vest n equal monthly installments thereafter over the following 36 months, subject to acceleration and subject to the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018589 · form4-07012024_080750.xml · derivative · entry 12

Babler Martin · CIK 0001435618 · Director · President, CEO and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 263,101 shares

Expires 2033-06-22

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F7 · derivative.exercise_date: 25% of the shares underlying this option vested on May 22, 2024, and the remaining shares vest n equal monthly installments thereafter over the following 36 months, subject to acceleration and subject to the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018589 · form4-07012024_080750.xml · derivative · entry 11

Babler Martin · CIK 0001435618 · Director · President, CEO and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 534,759

Underlying: Common Stock · 534,759 shares

Expires 2032-01-26

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F6 · derivative.exercise_date: 33% of the shares underlying this option vested on January 27, 2024, and the remaining shares vest in equal monthly installments thereafter over the following 48 months, subject to acceleration and subject to the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018589 · form4-07012024_080750.xml · derivative · entry 10

Babler Martin · CIK 0001435618 · Director · President, CEO and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 534,759 shares

Expires 2032-01-26

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F6 · derivative.exercise_date: 33% of the shares underlying this option vested on January 27, 2024, and the remaining shares vest in equal monthly installments thereafter over the following 48 months, subject to acceleration and subject to the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018589 · form4-07012024_080750.xml · derivative · entry 9

Babler Martin · CIK 0001435618 · Director · President, CEO and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 106,951

Underlying: Common Stock · 106,951 shares

Expires 2032-01-26

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F5 · derivative.exercise_date: 25% of the shares underlying this option vested on January 27, 2023, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and subject to the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018589 · form4-07012024_080750.xml · derivative · entry 8

Babler Martin · CIK 0001435618 · Director · President, CEO and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 106,951 shares

Expires 2032-01-26

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F5 · derivative.exercise_date: 25% of the shares underlying this option vested on January 27, 2023, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and subject to the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018589 · form4-07012024_080750.xml · derivative · entry 7

Babler Martin · CIK 0001435618 · Director · President, CEO and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 380,852

Underlying: Common Stock · 380,852 shares

Expires 2031-09-14

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F4 · derivative.exercise_date: 25% of the shares underlying this option vested on September 15, 2022, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and subject to the Reporting Person's continuous service to the Issuer on each such vesting date. This option was originally granted in the amount of 3,000,000 shares and was subsequently partially exercised for 1,219,513 shares on October 22, 2021.

SEC source: 0001415889-24-018589 · form4-07012024_080750.xml · derivative · entry 6

Babler Martin · CIK 0001435618 · Director · President, CEO and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 380,852 shares

Expires 2031-09-14

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F4 · derivative.exercise_date: 25% of the shares underlying this option vested on September 15, 2022, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and subject to the Reporting Person's continuous service to the Issuer on each such vesting date. This option was originally granted in the amount of 3,000,000 shares and was subsequently partially exercised for 1,219,513 shares on October 22, 2021.

SEC source: 0001415889-24-018589 · form4-07012024_080750.xml · derivative · entry 5

Babler Martin · CIK 0001435618 · Director · President, CEO and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,390

Underlying: Common Stock · 21,390 shares

Expires 2034-06-26

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F3 · derivative.exercise_date: 25% of the shares underlying this option vest on June 21, 2025, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018589 · form4-07012024_080750.xml · derivative · entry 4

Babler Martin · CIK 0001435618 · Director · President, CEO and Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 21,390 shares

Expires 2034-06-26

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F3 · derivative.exercise_date: 25% of the shares underlying this option vest on June 21, 2025, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and the Reporting Person's continuous service to the Issuer on each such vesting date.

SEC source: 0001415889-24-018589 · form4-07012024_080750.xml · nonDerivative · entry 2

Babler Martin · CIK 0001435618 · Director · President, CEO and Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 90,804

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F1 · price: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F2 · ownership.nature: Shares are held directly by Martin Babler revocable trust UAD October 25, 2006, for which Reporting Person serves as a trustee.

SEC source: 0001415889-24-018589 · form4-07012024_080750.xml · nonDerivative · entry 1

Babler Martin · CIK 0001435618 · Director · President, CEO and Chairman

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 0

F1 · kind: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F1 · price: Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of voting Common Stock.

F2 · ownership.nature: Shares are held directly by Martin Babler revocable trust UAD October 25, 2006, for which Reporting Person serves as a trustee.

SEC source: 0001104659-24-077877 · tm2418840-3_4seq1.xml · derivative · entry 33

Foresite Labs, LLC · CIK 0002027905 · 10% owner

Foresite Labs Affiliates 2021, LLC · CIK 0002028005 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 681,598 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: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · kind: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F5 · ownership.nature: The shares are held of record by Foresite Labs Fund I, L.P. ("Labs Fund I"). Foresite Labs Management I, LLC ("FLM I") is the general partner of Labs Fund I and may be deemed to have sole voting and dispositive power over such shares. Tananbaum, the managing member of FLM I, may be deemed to have sole voting and dispositive power over such shares. Each of the Reporting Persons disclaims the existence of a "group", as defined in Rule 13d-5 of the Exchange Act, and, other than Labs Fund I, disclaims beneficial ownership of the shares held by Labs Fund I, except to the extent of such person's pecuniary interest in such securities.

SEC source: 0001104659-24-077877 · tm2418840-3_4seq1.xml · derivative · entry 32

Foresite Labs, LLC · CIK 0002027905 · 10% owner

Foresite Labs Affiliates 2021, LLC · CIK 0002028005 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,703,998 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: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · kind: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F6 · ownership.nature: The shares are held of record by Foresite Capital Fund VI, L.P. ("Fund VI"). Foresite Capital Management VI, LLC ("FCM VI") is the general partner of Fund VI and may be deemed to have sole voting and dispositive power over such shares. Tananbaum, the managing member of FCM VI, may be deemed to have sole voting and dispositive power over such shares. Each of the Reporting Persons disclaims the existence of a "group", as defined in Rule 13d-5 of the Exchange Act, and, other than Fund VI, disclaims beneficial ownership of the shares held by Fund VI, except to the extent of such person's pecuniary interest in such securities.

SEC source: 0001104659-24-077877 · tm2418840-3_4seq1.xml · derivative · entry 31

Foresite Labs, LLC · CIK 0002027905 · 10% owner

Foresite Labs Affiliates 2021, LLC · CIK 0002028005 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 681,598 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: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · kind: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F4 · ownership.nature: The shares are held of record by Foresite Capital Opportunity Fund V, L.P. ("Opportunity Fund V"). Foresite Capital Opportunity Management V, LLC ("FCOM V") is the general partner of Opportunity Fund V and may be deemed to have sole voting and dispositive power over such shares. Tananbaum, the managing member of FCOM V, may be deemed to have sole voting and dispositive power over such shares. Each of the Reporting Persons disclaims the existence of a "group", as defined in Rule 13d-5 of the Exchange Act, and, other than Opportunity Fund V, disclaims beneficial ownership of the shares held by Opportunity Fund V, except to the extent of such person's pecuniary interest in such securities.

SEC source: 0001104659-24-077877 · tm2418840-3_4seq1.xml · derivative · entry 30

Foresite Labs, LLC · CIK 0002027905 · 10% owner

Foresite Labs Affiliates 2021, LLC · CIK 0002028005 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,022,398 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: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · kind: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F2 · ownership.nature: The shares are held of record by Foresite Capital Fund V, L.P. ("Fund V"). Foresite Capital Management V, LLC ("FCM V") is the general partner of Fund V and may be deemed to have sole voting and dispositive power over such shares. James B. Tananbaum ("Tananbaum"), the managing member of FCM V, may be deemed to have sole voting and dispositive power over such shares. Each of the Reporting Persons disclaims the existence of a "group", as defined in Rule 13d-5 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and, other than Fund V, disclaims beneficial ownership of the shares held by Fund V, except to the extent of such person's pecuniary interest in such securities.

SEC source: 0001104659-24-077877 · tm2418840-3_4seq1.xml · derivative · entry 29

Foresite Labs, LLC · CIK 0002027905 · 10% owner

Foresite Labs Affiliates 2021, LLC · CIK 0002028005 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 311,172 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: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · kind: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F5 · ownership.nature: The shares are held of record by Foresite Labs Fund I, L.P. ("Labs Fund I"). Foresite Labs Management I, LLC ("FLM I") is the general partner of Labs Fund I and may be deemed to have sole voting and dispositive power over such shares. Tananbaum, the managing member of FLM I, may be deemed to have sole voting and dispositive power over such shares. Each of the Reporting Persons disclaims the existence of a "group", as defined in Rule 13d-5 of the Exchange Act, and, other than Labs Fund I, disclaims beneficial ownership of the shares held by Labs Fund I, except to the extent of such person's pecuniary interest in such securities.

SEC source: 0001104659-24-077877 · tm2418840-3_4seq1.xml · derivative · entry 28

Foresite Labs, LLC · CIK 0002027905 · 10% owner

Foresite Labs Affiliates 2021, LLC · CIK 0002028005 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 311,172 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: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · kind: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F6 · ownership.nature: The shares are held of record by Foresite Capital Fund VI, L.P. ("Fund VI"). Foresite Capital Management VI, LLC ("FCM VI") is the general partner of Fund VI and may be deemed to have sole voting and dispositive power over such shares. Tananbaum, the managing member of FCM VI, may be deemed to have sole voting and dispositive power over such shares. Each of the Reporting Persons disclaims the existence of a "group", as defined in Rule 13d-5 of the Exchange Act, and, other than Fund VI, disclaims beneficial ownership of the shares held by Fund VI, except to the extent of such person's pecuniary interest in such securities.

SEC source: 0001104659-24-077877 · tm2418840-3_4seq1.xml · derivative · entry 27

Foresite Labs, LLC · CIK 0002027905 · 10% owner

Foresite Labs Affiliates 2021, LLC · CIK 0002028005 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 311,172 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: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · kind: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F4 · ownership.nature: The shares are held of record by Foresite Capital Opportunity Fund V, L.P. ("Opportunity Fund V"). Foresite Capital Opportunity Management V, LLC ("FCOM V") is the general partner of Opportunity Fund V and may be deemed to have sole voting and dispositive power over such shares. Tananbaum, the managing member of FCOM V, may be deemed to have sole voting and dispositive power over such shares. Each of the Reporting Persons disclaims the existence of a "group", as defined in Rule 13d-5 of the Exchange Act, and, other than Opportunity Fund V, disclaims beneficial ownership of the shares held by Opportunity Fund V, except to the extent of such person's pecuniary interest in such securities.

SEC source: 0001104659-24-077877 · tm2418840-3_4seq1.xml · derivative · entry 26

Foresite Labs, LLC · CIK 0002027905 · 10% owner

Foresite Labs Affiliates 2021, LLC · CIK 0002028005 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 622,344 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: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · kind: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F2 · ownership.nature: The shares are held of record by Foresite Capital Fund V, L.P. ("Fund V"). Foresite Capital Management V, LLC ("FCM V") is the general partner of Fund V and may be deemed to have sole voting and dispositive power over such shares. James B. Tananbaum ("Tananbaum"), the managing member of FCM V, may be deemed to have sole voting and dispositive power over such shares. Each of the Reporting Persons disclaims the existence of a "group", as defined in Rule 13d-5 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and, other than Fund V, disclaims beneficial ownership of the shares held by Fund V, except to the extent of such person's pecuniary interest in such securities.

SEC source: 0001104659-24-077877 · tm2418840-3_4seq1.xml · derivative · entry 25

Foresite Labs, LLC · CIK 0002027905 · 10% owner

Foresite Labs Affiliates 2021, LLC · CIK 0002028005 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 967,567 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: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · kind: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F5 · ownership.nature: The shares are held of record by Foresite Labs Fund I, L.P. ("Labs Fund I"). Foresite Labs Management I, LLC ("FLM I") is the general partner of Labs Fund I and may be deemed to have sole voting and dispositive power over such shares. Tananbaum, the managing member of FLM I, may be deemed to have sole voting and dispositive power over such shares. Each of the Reporting Persons disclaims the existence of a "group", as defined in Rule 13d-5 of the Exchange Act, and, other than Labs Fund I, disclaims beneficial ownership of the shares held by Labs Fund I, except to the extent of such person's pecuniary interest in such securities.

SEC source: 0001104659-24-077877 · tm2418840-3_4seq1.xml · derivative · entry 24

Foresite Labs, LLC · CIK 0002027905 · 10% owner

Foresite Labs Affiliates 2021, LLC · CIK 0002028005 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 560,076 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: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · kind: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F4 · ownership.nature: The shares are held of record by Foresite Capital Opportunity Fund V, L.P. ("Opportunity Fund V"). Foresite Capital Opportunity Management V, LLC ("FCOM V") is the general partner of Opportunity Fund V and may be deemed to have sole voting and dispositive power over such shares. Tananbaum, the managing member of FCOM V, may be deemed to have sole voting and dispositive power over such shares. Each of the Reporting Persons disclaims the existence of a "group", as defined in Rule 13d-5 of the Exchange Act, and, other than Opportunity Fund V, disclaims beneficial ownership of the shares held by Opportunity Fund V, except to the extent of such person's pecuniary interest in such securities.

SEC source: 0001104659-24-077877 · tm2418840-3_4seq1.xml · derivative · entry 23

Foresite Labs, LLC · CIK 0002027905 · 10% owner

Foresite Labs Affiliates 2021, LLC · CIK 0002028005 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 560,076 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: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · kind: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering of its Common Stock, each share of Series Seed Redeemable Convertible Preferred Stock, Series A Redeemable Convertible Preferred Stock, Series B-1 Redeemable Convertible Preferred Stock, Series B-2 Redeemable Convertible Preferred Stock and Series C Redeemable Convertible Preferred Stock automatically converted into one share of Common Stock and has no expiration date.

F2 · ownership.nature: The shares are held of record by Foresite Capital Fund V, L.P. ("Fund V"). Foresite Capital Management V, LLC ("FCM V") is the general partner of Fund V and may be deemed to have sole voting and dispositive power over such shares. James B. Tananbaum ("Tananbaum"), the managing member of FCM V, may be deemed to have sole voting and dispositive power over such shares. Each of the Reporting Persons disclaims the existence of a "group", as defined in Rule 13d-5 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and, other than Fund V, disclaims beneficial ownership of the shares held by Fund V, except to the extent of such person's pecuniary interest in such securities.