ATAI

SEC source: 0001140361-26-026786 · form4.xml · derivative · entry 3

Kochendoerfer Gerd · CIK 0002047433 · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,400,000

Underlying: Common Stock · 50,000 shares

Expires 2035-01-01

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 · kind: The option exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 27, 2026.

F2 · derivative.exercise_date: The stock option vested (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying the option on December 3, 2025 and as to the remaining 75% of the total number of shares in 36 substantially equal monthly installments thereafter.

SEC source: 0001140361-26-026786 · form4.xml · nonDerivative · entry 2

Kochendoerfer Gerd · CIK 0002047433 · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F2 · kind: The stock option vested (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying the option on December 3, 2025 and as to the remaining 75% of the total number of shares in 36 substantially equal monthly installments thereafter.

SEC source: 0001140361-26-026786 · form4.xml · nonDerivative · entry 1

Kochendoerfer Gerd · CIK 0002047433 · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 50,000

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

F1 · kind: The option exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 27, 2026.

SEC source: 0001140361-26-026787 · form4.xml · derivative · entry 5

Craig Kevin James · CIK 0002049601 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,608

Underlying: Common Stock · 9,528 shares

Expires 2033-03-14

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 · kind: The option exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2025.

F4 · derivative.exercise_date: The stock option vested as to 25% of the underlying shares on March 14, 2024, with the remaining underlying shares vesting in 36 substantially equal monthly installments thereafter.

SEC source: 0001140361-26-026787 · form4.xml · derivative · entry 4

Craig Kevin James · CIK 0002049601 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 673,808

Underlying: Common Stock · 33,051 shares

Expires 2035-03-03

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 · kind: The option exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2025.

F3 · derivative.exercise_date: The stock option vested as to 25% of the underlying shares on January 1, 2026, with the remaining underlying shares vesting in 36 substantially equal monthly installments thereafter.

SEC source: 0001140361-26-026787 · form4.xml · nonDerivative · entry 3

Craig Kevin James · CIK 0002049601 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,437

F2 · kind: The price reported is a weighted average price. The securities were sold in multiple transactions at per share prices ranging from $4.50 to $4.54. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price

SEC source: 0001140361-26-026787 · form4.xml · nonDerivative · entry 2

Craig Kevin James · CIK 0002049601 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 51,016

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 · kind: The option exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2025.

SEC source: 0001140361-26-026787 · form4.xml · nonDerivative · entry 1

Craig Kevin James · CIK 0002049601 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 41,488

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 · kind: The option exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2025.

SEC source: 0001140361-26-024527 · form4.xml · derivative · entry 1

Angermayer Christian · CIK 0001845872 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 121,968

Underlying: Common Stock · 121,968 shares

Expires 2036-06-04

F1 · derivative.exercise_date: The stock option shall vest on the earlier of the day before AtaiBeckley Inc.'s next annual meeting or June 4, 2027, subject to continued service on AtaiBeckley Inc.'s board of directors through the applicable vesting date.

SEC source: 0001140361-26-024525 · form4.xml · derivative · entry 1

Fischer Laurent · CIK 0001379344 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 121,968

Underlying: Common Stock · 121,968 shares

Expires 2036-06-04

F1 · derivative.exercise_date: The stock option shall vest on the earlier of the day before AtaiBeckley Inc.'s next annual meeting or June 4, 2027, subject to continued service on AtaiBeckley Inc.'s board of directors through the applicable vesting date.

SEC source: 0001140361-26-024526 · form4.xml · derivative · entry 2

Braunstein Scott · CIK 0001643875 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 86,095

Underlying: Common Stock · 86,095 shares

Expires 2036-06-04

F1 · derivative.exercise_date: The stock option shall vest on the earlier of the day before AtaiBeckley Inc.'s next annual meeting or June 4, 2027, subject to continued service on AtaiBeckley Inc.'s board of directors through the applicable vesting date.

SEC source: 0001140361-26-024526 · form4.xml · derivative · entry 1

Braunstein Scott · CIK 0001643875 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 121,968

Underlying: Common Stock · 121,968 shares

Expires 2036-06-04

F1 · derivative.exercise_date: The stock option shall vest on the earlier of the day before AtaiBeckley Inc.'s next annual meeting or June 4, 2027, subject to continued service on AtaiBeckley Inc.'s board of directors through the applicable vesting date.

SEC source: 0001140361-26-024524 · form4.xml · derivative · entry 1

HERSHBERG ROBERT · CIK 0001274139 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 121,968

Underlying: Common Stock · 121,968 shares

Expires 2036-06-04

F1 · derivative.exercise_date: The stock option shall vest on the earlier of the day before AtaiBeckley Inc.'s next annual meeting or June 4, 2027, subject to continued service on AtaiBeckley Inc.'s board of directors through the applicable vesting date.

SEC source: 0001140361-26-024523 · form4.xml · derivative · entry 1

Hoffman John Francis · CIK 0002070006 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 121,968

Underlying: Common Stock · 121,968 shares

Expires 2036-06-04

F1 · derivative.exercise_date: The stock option shall vest on the earlier of the day before AtaiBeckley Inc.'s next annual meeting or June 4, 2027, subject to continued service on AtaiBeckley Inc.'s board of directors through the applicable vesting date.

SEC source: 0001140361-26-024522 · form4.xml · derivative · entry 1

Kalali Amir H · CIK 0001403646 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 121,968

Underlying: Common Stock · 121,968 shares

Expires 2036-06-04

F1 · derivative.exercise_date: The stock option shall vest on the earlier of the day before AtaiBeckley Inc.'s next annual meeting or June 4, 2027, subject to continued service on AtaiBeckley Inc.'s board of directors through the applicable vesting date.

SEC source: 0001140361-26-024521 · form4.xml · derivative · entry 1

Smiley Andrea Heslin · CIK 0001703767 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 121,968

Underlying: Common Stock · 121,968 shares

Expires 2036-06-04

F1 · derivative.exercise_date: The stock option shall vest on the earlier of the day before AtaiBeckley Inc.'s next annual meeting or June 4, 2027, subject to continued service on AtaiBeckley Inc.'s board of directors through the applicable vesting date.

SEC source: 0001140361-26-024520 · form4.xml · derivative · entry 1

JOHNSON SABRINA MARTUCCI · CIK 0001199102 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 121,968

Underlying: Common Stock · 121,968 shares

Expires 2036-06-04

F1 · derivative.exercise_date: The stock option shall vest on the earlier of the day before AtaiBeckley Inc.'s next annual meeting or June 4, 2027, subject to continued service on AtaiBeckley Inc.'s board of directors through the applicable vesting date.

SEC source: 0001140361-26-016169 · form4.xml · derivative · entry 5

Craig Kevin James · CIK 0002049601 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 372,701

Underlying: Common Stock · 15,299 shares

Expires 2034-03-13

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

F1 · kind: The option exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2025.

F3 · derivative.exercise_date: The stock option vested as to 25% of the underlying shares on January 1, 2025, with the remaining underlying shares vesting in 36 substantially equal monthly installments thereafter.

SEC source: 0001140361-26-016169 · form4.xml · derivative · entry 4

Craig Kevin James · CIK 0002049601 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 706,859

Underlying: Common Stock · 27,280 shares

Expires 2035-03-03

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 · kind: The option exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2025.

F2 · derivative.exercise_date: The stock option vested as to 25% of the underlying shares on January 1, 2026, with the remaining underlying shares vesting in 36 substantially equal monthly installments thereafter.

SEC source: 0001140361-26-016169 · form4.xml · nonDerivative · entry 3

Craig Kevin James · CIK 0002049601 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,437

F1 · kind: The option exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2025.

SEC source: 0001140361-26-016169 · form4.xml · nonDerivative · entry 2

Craig Kevin James · CIK 0002049601 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 51,016

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 · kind: The option exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2025.

SEC source: 0001140361-26-016169 · form4.xml · nonDerivative · entry 1

Craig Kevin James · CIK 0002049601 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,717

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 · kind: The option exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2025.

SEC source: 0001140361-26-014300 · form4.xml · derivative · entry 8

Angermayer Christian · CIK 0001845872 · Director · 10% owner

Apeiron Investment Group Ltd. · CIK 0001845711 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 103,000 shares

Expires 2034-06-13

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

F2 · derivative.exercise_date: The stock option is fully vested and exercisable.

SEC source: 0001140361-26-014300 · form4.xml · derivative · entry 7

Angermayer Christian · CIK 0001845872 · Director · 10% owner

Apeiron Investment Group Ltd. · CIK 0001845711 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 231,838

Underlying: Common Stock · 410,162 shares

Expires 2034-01-05

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

F3 · derivative.exercise_date: The stock option vested with respect to 25% of the shares on January 5, 2025, and will vest with respect to the remaining shares in 36 monthly installments thereafter.

SEC source: 0001140361-26-014300 · form4.xml · derivative · entry 6

Angermayer Christian · CIK 0001845872 · Director · 10% owner

Apeiron Investment Group Ltd. · CIK 0001845711 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,930

Underlying: Common Stock · 46,070 shares

Expires 2033-05-23

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

F2 · derivative.exercise_date: The stock option is fully vested and exercisable.

SEC source: 0001140361-26-014300 · form4.xml · nonDerivative · entry 3

Angermayer Christian · CIK 0001845872 · Director · 10% owner

Apeiron Investment Group Ltd. · CIK 0001845711 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 559,232

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: Represents shares acquired upon exercise of options and held by the Reporting Person.

SEC source: 0001140361-26-014300 · form4.xml · nonDerivative · entry 2

Angermayer Christian · CIK 0001845872 · Director · 10% owner

Apeiron Investment Group Ltd. · CIK 0001845711 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 456,232

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: Represents shares acquired upon exercise of options and held by the Reporting Person.

SEC source: 0001140361-26-014300 · form4.xml · nonDerivative · entry 1

Angermayer Christian · CIK 0001845872 · Director · 10% owner

Apeiron Investment Group Ltd. · CIK 0001845711 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,070

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: Represents shares acquired upon exercise of options and held by the Reporting Person.

SEC source: 0001140361-26-010932 · form4.xml · derivative · entry 5

Craig Kevin James · CIK 0002049601 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 734,139

Underlying: Common Stock · 23,776 shares

Expires 2035-03-03

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.

F4 · derivative.exercise_date: The price reported is a weighted average price. The securities were sold in multiple transactions at per share prices ranging from $3.52 to $3.60. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

SEC source: 0001140361-26-010932 · form4.xml · derivative · entry 4

Craig Kevin James · CIK 0002049601 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,136

Underlying: Common Stock · 76,224 shares

Expires 2033-03-14

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

F3 · derivative.exercise_date: The stock option vested as to 25% of the underlying shares on January 1, 2026, with the remaining shares vesting in 36 substantially equal monthly installments thereafter.

SEC source: 0001140361-26-010932 · form4.xml · nonDerivative · entry 3

Craig Kevin James · CIK 0002049601 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,437

F1 · kind: The option exercises and sale reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2025.

F2 · price: The stock option vested as to 25% of the underlying shares on March 14, 2024, with the remaining underlying shares vesting in 36 substantially equal monthly installments thereafter.

SEC source: 0001140361-26-010932 · form4.xml · nonDerivative · entry 2

Craig Kevin James · CIK 0002049601 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 108,437

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 · kind: The option exercises and sale reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2025.

SEC source: 0001140361-26-010932 · form4.xml · nonDerivative · entry 1

Craig Kevin James · CIK 0002049601 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 84,661

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 · kind: The option exercises and sale reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 19, 2025.

SEC source: 0001140361-26-009412 · form4.xml · derivative · entry 2

Faerm Michael E. · CIK 0001647141 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 285,000

Underlying: Common Stock · 285,000 shares

Expires not disclosed

F2 · derivative.exercise_price: The restricted stock units vest (subject to continued service through each such vesting date) in four equal annual instalments on each of the first four anniversaries of March 11, 2026.

F2 · derivative.exercise_date: The restricted stock units vest (subject to continued service through each such vesting date) in four equal annual instalments on each of the first four anniversaries of March 11, 2026.

F2 · derivative.expiration_date: The restricted stock units vest (subject to continued service through each such vesting date) in four equal annual instalments on each of the first four anniversaries of March 11, 2026.

SEC source: 0001140361-26-009412 · form4.xml · derivative · entry 1

Faerm Michael E. · CIK 0001647141 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,275,000

Underlying: Common Stock · 1,275,000 shares

Expires 2036-03-11

F1 · derivative.exercise_date: The stock option vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying the option on March 11, 2027 and as to the remaining 75% of the total number of shares in 36 substantially equal monthly installments thereafter.

SEC source: 0001140361-26-003549 · form4.xml · derivative · entry 2

Rao Srinivas · CIK 0001860902 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 442,000

Underlying: Common Stock · 442,000 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying such award on January 1, 2027 and as to the remaining 75% of the total number of shares on each of the first three anniversaries of January 1, 2027.

F2 · derivative.exercise_date: Each restricted stock unit vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying such award on January 1, 2027 and as to the remaining 75% of the total number of shares on each of the first three anniversaries of January 1, 2027.

F2 · derivative.expiration_date: Each restricted stock unit vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying such award on January 1, 2027 and as to the remaining 75% of the total number of shares on each of the first three anniversaries of January 1, 2027.

SEC source: 0001140361-26-003549 · form4.xml · derivative · entry 1

Rao Srinivas · CIK 0001860902 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,988,000

Underlying: Common Stock · 1,988,000 shares

Expires 2036-01-30

F1 · derivative.exercise_date: The stock option vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying the option on January 1, 2027 and as to the remaining 75% of the total number of shares in 36 substantially equal monthly installments thereafter.

SEC source: 0001140361-26-003552 · form4.xml · derivative · entry 2

Barrett Christopher Ryan Cave · CIK 0002087548 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 150,000

Underlying: Common Stock · 150,000 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying such award on January 1, 2027 and as to the remaining 75% of the total number of shares on each of the first three anniversaries of January 1, 2027.

F2 · derivative.exercise_date: Each restricted stock unit vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying such award on January 1, 2027 and as to the remaining 75% of the total number of shares on each of the first three anniversaries of January 1, 2027.

F2 · derivative.expiration_date: Each restricted stock unit vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying such award on January 1, 2027 and as to the remaining 75% of the total number of shares on each of the first three anniversaries of January 1, 2027.

SEC source: 0001140361-26-003552 · form4.xml · derivative · entry 1

Barrett Christopher Ryan Cave · CIK 0002087548 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 675,000

Underlying: Common Stock · 675,000 shares

Expires 2036-01-30

F1 · derivative.exercise_date: The stock option vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying the option on January 1, 2027 and as to the remaining 75% of the total number of shares in 36 substantially equal monthly installments thereafter.

SEC source: 0001140361-26-003551 · form4.xml · derivative · entry 2

Johnson Anne Nagengast · CIK 0001976640 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 117,000

Underlying: Common Stock · 117,000 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying such award on January 1, 2027 and as to the remaining 75% of the total number of shares on each of the first three anniversaries of January 1, 2027.

F2 · derivative.exercise_date: Each restricted stock unit vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying such award on January 1, 2027 and as to the remaining 75% of the total number of shares on each of the first three anniversaries of January 1, 2027.

F2 · derivative.expiration_date: Each restricted stock unit vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying such award on January 1, 2027 and as to the remaining 75% of the total number of shares on each of the first three anniversaries of January 1, 2027.

SEC source: 0001140361-26-003551 · form4.xml · derivative · entry 1

Johnson Anne Nagengast · CIK 0001976640 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 525,000

Underlying: Common Stock · 525,000 shares

Expires 2036-01-30

F1 · derivative.exercise_date: The stock option vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying the option on January 1, 2027 and as to the remaining 75% of the total number of shares in 36 substantially equal monthly installments thereafter.

SEC source: 0001140361-26-003550 · form4.xml · derivative · entry 2

Kochendoerfer Gerd · CIK 0002047433 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 150,000

Underlying: Common Stock · 150,000 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying such award on January 1, 2027 and as to the remaining 75% of the total number of shares on each of the first three anniversaries of January 1, 2027.

F2 · derivative.exercise_date: Each restricted stock unit vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying such award on January 1, 2027 and as to the remaining 75% of the total number of shares on each of the first three anniversaries of January 1, 2027.

F2 · derivative.expiration_date: Each restricted stock unit vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying such award on January 1, 2027 and as to the remaining 75% of the total number of shares on each of the first three anniversaries of January 1, 2027.

SEC source: 0001140361-26-003550 · form4.xml · derivative · entry 1

Kochendoerfer Gerd · CIK 0002047433 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 675,000

Underlying: Common Stock · 675,000 shares

Expires 2036-01-30

F1 · derivative.exercise_date: The stock option vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying the option on January 1, 2027 and as to the remaining 75% of the total number of shares in 36 substantially equal monthly installments thereafter.

SEC source: 0001140361-26-003548 · form4.xml · derivative · entry 2

Short Glenn Frank · CIK 0002049070 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 150,000

Underlying: Common Stock · 150,000 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying such award on January 1, 2027 and as to the remaining 75% of the total number of shares on each of the first three anniversaries of January 1, 2027.

F2 · derivative.exercise_date: Each restricted stock unit vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying such award on January 1, 2027 and as to the remaining 75% of the total number of shares on each of the first three anniversaries of January 1, 2027.

F2 · derivative.expiration_date: Each restricted stock unit vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying such award on January 1, 2027 and as to the remaining 75% of the total number of shares on each of the first three anniversaries of January 1, 2027.

SEC source: 0001140361-26-003548 · form4.xml · derivative · entry 1

Short Glenn Frank · CIK 0002049070 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 675,000

Underlying: Common Stock · 675,000 shares

Expires 2036-01-30

F1 · derivative.exercise_date: The stock option vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying the option on January 1, 2027 and as to the remaining 75% of the total number of shares in 36 substantially equal monthly installments thereafter.

SEC source: 0001140361-26-003547 · form4.xml · derivative · entry 2

Craig Kevin James · CIK 0002049601 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 150,000

Underlying: Common Stock · 150,000 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying such award on January 1, 2027 and as to the remaining 75% of the total number of shares on each of the first three anniversaries of January 1, 2027.

F2 · derivative.exercise_date: Each restricted stock unit vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying such award on January 1, 2027 and as to the remaining 75% of the total number of shares on each of the first three anniversaries of January 1, 2027.

F2 · derivative.expiration_date: Each restricted stock unit vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying such award on January 1, 2027 and as to the remaining 75% of the total number of shares on each of the first three anniversaries of January 1, 2027.

SEC source: 0001140361-26-003547 · form4.xml · derivative · entry 1

Craig Kevin James · CIK 0002049601 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 675,000

Underlying: Common Stock · 675,000 shares

Expires 2036-01-30

F1 · derivative.exercise_date: The stock option vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying the option on January 1, 2027 and as to the remaining 75% of the total number of shares in 36 substantially equal monthly installments thereafter.

SEC source: 0001140361-26-000415 · form4.xml · nonDerivative · entry 1

Feilding-Mellen Cosmo · CIK 0002094202 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,663,396

F1 · shares: Represents shares sold to satisfy the Reporting Person's tax liability on vesting of restricted stock units.

F2 · price: The price reported is a weighted average price. The securities were sold in multiple transactions at per share prices ranging from $3.79 to $3.99. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.