NODELMAN OLEG

SEC source: 0000935836-26-000031 · ownership.xml · derivative · entry 12

EcoR1 Capital, LLC · CIK 0001587114 · Director

NODELMAN OLEG · CIK 0001454385 · Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 86,222

Underlying: Common Stock · 86,222 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.

F5 · derivative.exercise_price: Each share of Class A Common Stock is convertible into one share of Common Stock at the election of the holder for no additional consideration, subject to a 4.99% beneficial ownership limitation. Each share is immediately exercisable and has no expiration date.

F1 · price: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F5 · derivative.exercise_date: Each share of Class A Common Stock is convertible into one share of Common Stock at the election of the holder for no additional consideration, subject to a 4.99% beneficial ownership limitation. Each share is immediately exercisable and has no expiration date.

F5 · derivative.expiration_date: Each share of Class A Common Stock is convertible into one share of Common Stock at the election of the holder for no additional consideration, subject to a 4.99% beneficial ownership limitation. Each share is immediately exercisable and has no expiration date.

F3 · ownership.nature: These securities are held by EcoR1 Capital Fund, L.P. ("Capital Fund"). EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to and general partner of the fund. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1.

SEC source: 0000935836-26-000031 · ownership.xml · derivative · entry 11

EcoR1 Capital, LLC · CIK 0001587114 · Director

NODELMAN OLEG · CIK 0001454385 · Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See note

Disclosed balance after: 965,190

Underlying: Common Stock · 965,190 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.

F5 · derivative.exercise_price: Each share of Class A Common Stock is convertible into one share of Common Stock at the election of the holder for no additional consideration, subject to a 4.99% beneficial ownership limitation. Each share is immediately exercisable and has no expiration date.

F1 · price: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F5 · derivative.exercise_date: Each share of Class A Common Stock is convertible into one share of Common Stock at the election of the holder for no additional consideration, subject to a 4.99% beneficial ownership limitation. Each share is immediately exercisable and has no expiration date.

F5 · derivative.expiration_date: Each share of Class A Common Stock is convertible into one share of Common Stock at the election of the holder for no additional consideration, subject to a 4.99% beneficial ownership limitation. Each share is immediately exercisable and has no expiration date.

F2 · ownership.nature: These securities are held by EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 Capital, LLC ("EcoR1") may be deemed to indirectly beneficially own them as the investment adviser to and general partner of the fund. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1.

SEC source: 0000935836-26-000031 · ownership.xml · derivative · entry 10

EcoR1 Capital, LLC · CIK 0001587114 · Director

NODELMAN OLEG · CIK 0001454385 · Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See note

Disclosed balance after: 0

Underlying: Common Stock · 26,942 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: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F1 · price: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F1 · derivative.exercise_date: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F1 · derivative.expiration_date: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F3 · ownership.nature: These securities are held by EcoR1 Capital Fund, L.P. ("Capital Fund"). EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to and general partner of the fund. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1.

SEC source: 0000935836-26-000031 · ownership.xml · derivative · entry 9

EcoR1 Capital, LLC · CIK 0001587114 · Director

NODELMAN OLEG · CIK 0001454385 · Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See note

Disclosed balance after: 0

Underlying: Common Stock · 630,191 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: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F1 · price: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F1 · derivative.exercise_date: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F1 · derivative.expiration_date: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F2 · ownership.nature: These securities are held by EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 Capital, LLC ("EcoR1") may be deemed to indirectly beneficially own them as the investment adviser to and general partner of the fund. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1.

SEC source: 0000935836-26-000031 · ownership.xml · derivative · entry 8

EcoR1 Capital, LLC · CIK 0001587114 · Director

NODELMAN OLEG · CIK 0001454385 · Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See note

Disclosed balance after: 0

Underlying: Common Stock · 128,506 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: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F1 · price: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F1 · derivative.exercise_date: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F1 · derivative.expiration_date: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F4 · ownership.nature: These securities are held by EcoR1 Venture Opportunity Fund, L.P. ("Venture Fund"). EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to and general partner of the fund. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1.

SEC source: 0000935836-26-000031 · ownership.xml · derivative · entry 7

EcoR1 Capital, LLC · CIK 0001587114 · Director

NODELMAN OLEG · CIK 0001454385 · Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See note

Disclosed balance after: 0

Underlying: Common Stock · 262,142 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: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F1 · price: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F1 · derivative.exercise_date: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F1 · derivative.expiration_date: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F3 · ownership.nature: These securities are held by EcoR1 Capital Fund, L.P. ("Capital Fund"). EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to and general partner of the fund. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1.

SEC source: 0000935836-26-000031 · ownership.xml · derivative · entry 6

EcoR1 Capital, LLC · CIK 0001587114 · Director

NODELMAN OLEG · CIK 0001454385 · Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See note

Disclosed balance after: 0

Underlying: Common Stock · 2,605,878 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: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F1 · price: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F1 · derivative.exercise_date: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F1 · derivative.expiration_date: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F2 · ownership.nature: These securities are held by EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 Capital, LLC ("EcoR1") may be deemed to indirectly beneficially own them as the investment adviser to and general partner of the fund. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1.

SEC source: 0000935836-26-000031 · ownership.xml · nonDerivative · entry 5

EcoR1 Capital, LLC · CIK 0001587114 · Director

NODELMAN OLEG · CIK 0001454385 · Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 347,305

F3 · ownership.nature: These securities are held by EcoR1 Capital Fund, L.P. ("Capital Fund"). EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to and general partner of the fund. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1.

SEC source: 0000935836-26-000031 · ownership.xml · nonDerivative · entry 4

EcoR1 Capital, LLC · CIK 0001587114 · Director

NODELMAN OLEG · CIK 0001454385 · Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 4,348,658

F2 · ownership.nature: These securities are held by EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 Capital, LLC ("EcoR1") may be deemed to indirectly beneficially own them as the investment adviser to and general partner of the fund. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1.

SEC source: 0000935836-26-000031 · ownership.xml · nonDerivative · entry 3

EcoR1 Capital, LLC · CIK 0001587114 · Director

NODELMAN OLEG · CIK 0001454385 · Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 128,506

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

F1 · price: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F4 · ownership.nature: These securities are held by EcoR1 Venture Opportunity Fund, L.P. ("Venture Fund"). EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to and general partner of the fund. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1.

SEC source: 0000935836-26-000031 · ownership.xml · nonDerivative · entry 2

EcoR1 Capital, LLC · CIK 0001587114 · Director

NODELMAN OLEG · CIK 0001454385 · Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 202,862

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

F1 · price: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F3 · ownership.nature: These securities are held by EcoR1 Capital Fund, L.P. ("Capital Fund"). EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to and general partner of the fund. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1.

SEC source: 0000935836-26-000031 · ownership.xml · nonDerivative · entry 1

EcoR1 Capital, LLC · CIK 0001587114 · Director

NODELMAN OLEG · CIK 0001454385 · Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 2,270,879

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

F1 · price: The shares of Series A Redeemable Convertible Preferred Stock and Series B Redeemable Convertible Preferred Stock converted into shares of Common Stock and Class A Common Stock on a 3.8044-for-1 basis immediately prior to the closing of the initial public offering of the Issuer's Common Stock for no additional consideration. Each share was immediately exercisable and had no expiration date.

F2 · ownership.nature: These securities are held by EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 Capital, LLC ("EcoR1") may be deemed to indirectly beneficially own them as the investment adviser to and general partner of the fund. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1.

SEC source: 0000935836-25-000438 · ownership.xml · derivative · entry 3

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See note

Disclosed balance after: 0

Underlying: Common Stock · 5,086,521 shares

Expires not disclosed

F5 · shares: Qualified Fund exercised 4,818,462 of the pre-funded warrants reported in this transaction.

F6 · derivative.expiration_date: The pre-funded warrants did not have an expiration date.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000438 · ownership.xml · nonDerivative · entry 2

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 22,970,388

F4 · kind: On June 26, 2025,the reporting persons exercised pre-funded warrants to purchase 5,086,521 shares of the Issuer's Common Stock for $0.0001 per share. The reporting persons paid the exercise price on a cashless basis, resulting in the Issuer withholding 41 of the warrant shares (including 38 warrant shares issuable to Qualified Fund) to pay the exercise price and issuing to the reporting persons the remaining 5,086,480 shares.

F3 · balance_after: After the transactions reported herein, Qualified Fund held 21,582,563 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000438 · ownership.xml · nonDerivative · entry 1

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 22,970,388

F2 · shares: Qualified Fund acquired 4,818,424 shares of Common Stock in connection with the exercise of the pre-funded warrants.

F3 · balance_after: After the transactions reported herein, Qualified Fund held 21,582,563 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000389 · ownership.xml · nonDerivative · entry 2

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 17,883,908

F4 · shares: Qualified Fund purchased 5,550 of the shares purchased in this transaction.

F5 · balance_after: After this transaction, Qualified Fund held 16,764,139 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000389 · ownership.xml · nonDerivative · entry 1

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 17,877,989

F2 · shares: Qualified Fund purchased 46,405 of the shares purchased in this transaction.

F3 · balance_after: After this transaction, Qualified Fund held 16,758,589 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000292 · ownership.xml · nonDerivative · entry 2

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 17,828,487

F5 · shares: Qualified Fund purchased 51,344 of the shares purchased in this transaction.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $11.5125 to $11.5214, inclusive.

F7 · balance_after: After this transaction, Qualified Fund held 16,712,184 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000292 · ownership.xml · nonDerivative · entry 1

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 17,773,727

F2 · shares: Qualified Fund purchased 69,339 of the shares purchased in this transaction.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $10.9823 to $11.2339 inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each seperate price within the ranges set forth in this footnote and footnote 6.

F4 · balance_after: After this transaction, Qualified Fund held 16,660,840 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000266 · ownership.xml · nonDerivative · entry 2

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 17,699,774

F5 · shares: Qualified Fund purchased 184,181 of the shares purchased in this transaction.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $10.9804 to $11.2921, inclusive.

F7 · balance_after: After this transaction, Qualified Fund held 16,591,501 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000266 · ownership.xml · nonDerivative · entry 1

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 17,503,336

F2 · shares: Qualified Fund purchased 113,233 of the shares purchased in this transaction.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $11.8101 to $11.9123 inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each seperate price within the ranges set forth in this footnote and footnote 6.

F4 · balance_after: After this transaction, Qualified Fund held 16,407,320 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000259 · ownership.xml · nonDerivative · entry 3

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 17,382,566

F6 · shares: Qualified Fund purchased 69,720 of the shares purchased in this transaction.

F7 · balance_after: After this transaction, Qualified Fund held 16,294,087 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000259 · ownership.xml · nonDerivative · entry 2

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 17,308,206

F4 · shares: Qualified Fund purchased 45,622 of the shares purchased in this transaction.

F5 · balance_after: After this transaction, Qualified Fund held 16,224,367 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000259 · ownership.xml · nonDerivative · entry 1

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 17,259,548

F2 · shares: Qualified Fund purchased 4,129 of the shares purchased in this transaction.

F3 · balance_after: After this transaction, Qualified Fund held 16,178,745 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000253 · ownership.xml · nonDerivative · entry 2

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 17,255,151

F4 · shares: Qualified Fund purchased 41,177 of the shares purchased in this transaction.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $12.2293 to $12.3537, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote.

F6 · balance_after: After this transaction, Qualified Fund held 16,174,616 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000253 · ownership.xml · nonDerivative · entry 1

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 17,211,303

F2 · shares: Qualified Fund purchased 50,243 of the shares purchased in this transaction.

F3 · balance_after: After this transaction, Qualified Fund held 16,133,439 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000245 · ownership.xml · nonDerivative · entry 3

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 17,157,802

F7 · shares: Qualified Fund purchased 21,307 of the shares purchased in this transaction.

F8 · balance_after: After this transaction, Qualified Fund held 16,083,196 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000245 · ownership.xml · nonDerivative · entry 2

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 17,135,113

F4 · shares: Qualified Fund purchased 29,143 of the shares purchased in this transaction.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $12.6895 to $12.9881 inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote with the ranges set forth in this footnote.

F6 · balance_after: After this transaction, Qualified Fund held 16,061,889 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000245 · ownership.xml · nonDerivative · entry 1

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 17,104,080

F2 · shares: Qualified Fund purchased 69,000 of the shares purchased in this transaction.

F3 · balance_after: After this transaction, Qualified Fund held 16,032,746 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000239 · ownership.xml · nonDerivative · entry 3

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 17,030,604

F8 · shares: Qualified Fund purchased 54,758 of the shares purchased in this transaction.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $12.5029 to $12.7711, inclusive.

F10 · balance_after: After this transaction, Qualified Fund held 15,963,746 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000239 · ownership.xml · nonDerivative · entry 2

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 16,972,298

F5 · shares: Qualified Fund purchased 106,944 of the shares purchased in this transaction.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $12.3214 to $12.7045, inclusive.

F7 · balance_after: After this transaction, Qualified Fund held 15,908,988 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000239 · ownership.xml · nonDerivative · entry 1

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 16,858,418

F2 · shares: Qualified Fund purchased 52,849 of the shares purchased in this transaction.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $12.1287 to $12.2678 inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote with the ranges set forth in this footnote.

F4 · balance_after: After this transaction, Qualified Fund held 15,802,044 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000225 · ownership.xml · nonDerivative · entry 3

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 16,802,141

F8 · shares: Qualified Fund purchased 439,831 of the shares purchased in this transaction.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $12.26 to $12.55, inclusive.

F10 · balance_after: After this transaction, Qualified Fund held 15,749,195 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000225 · ownership.xml · nonDerivative · entry 2

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 16,333,785

F5 · shares: Qualified Fund purchased 275,095 of the shares purchased in this transaction.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $12.0008 to $12.3728, inclusive.

F7 · balance_after: After this transaction, Qualified Fund held 15,309,364 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000225 · ownership.xml · nonDerivative · entry 1

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 16,040,851

F2 · shares: Qualified Fund purchased 301,160 of the shares purchased in this transaction.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $11.115 to $11.70, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote with the ranges set forth in this footnote and footnote 6 and 9.

F4 · balance_after: After this transaction, Qualified Fund held 15,034,269 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund"). EcoR1 is the general partner and investment adviser of private funds, including Qualified Fund (the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein.

SEC source: 0000935836-25-000008 · ownership.xml · nonDerivative · entry 3

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 7,880,094

F7 · shares: Qualified Fund purchased all of the securities in this transaction.

F8 · balance_after: After this transaction, Qualified Fund held 7,401,972 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified L.P. ("Qualified Fund"). EcoR1 is the investment adviser and general partner of private funds, including Qualified Fund (collectively, the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1 and a director of the Issuer. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of such securities except to the extent of their pecuniary interests therein.

SEC source: 0000935836-25-000008 · ownership.xml · nonDerivative · entry 2

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 7,873,448

F5 · shares: Qualified Fund purchased all of the securities in this transaction.

F6 · balance_after: After this transaction, Qualified Fund held 7,395,326 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified L.P. ("Qualified Fund"). EcoR1 is the investment adviser and general partner of private funds, including Qualified Fund (collectively, the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1 and a director of the Issuer. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of such securities except to the extent of their pecuniary interests therein.

SEC source: 0000935836-25-000008 · ownership.xml · nonDerivative · entry 1

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 7,860,180

F2 · shares: Qualified Fund purchased all of the securities in this transaction.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $12.71 to $12.9552, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote 3.

F4 · balance_after: After this transaction, Qualified Fund held 7,382,058 shares of the Issuer's Common Stock.

F1 · ownership.nature: The reporting persons are EcoR1 Capital, LLC ("EcoR1"), Oleg Nodelman and EcoR1 Capital Fund Qualified L.P. ("Qualified Fund"). EcoR1 is the investment adviser and general partner of private funds, including Qualified Fund (collectively, the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1 and a director of the Issuer. EcoR1 is filing this Form 4 for itself and Qualified Fund. The filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to indirectly beneficially own them as the investment adviser to the Funds. Mr. Nodelman may be deemed to indirectly beneficially own them as the control person of EcoR1. The filers disclaim beneficial ownership of such securities except to the extent of their pecuniary interests therein.

SEC source: 0000935836-23-000621 · ownership.xml · nonDerivative · entry 3

NODELMAN OLEG · CIK 0001454385 · Director

EcoR1 Capital, LLC · CIK 0001587114 · Director

EcoR1 Capital Fund, L.P. · CIK 0001567938 · Director

EcoR1 Capital Fund Qualified, L.P. · CIK 0001598292 · Director

EcoR1 Venture Opportunity Fund, LP · CIK 0001778011 · Director

Biotech Opportunity GP, LLC · CIK 0001816370 · Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Notes

Disclosed balance after: 12,674,775

F5 · date: Original Form 4 inadvertently identified the date of this transaction as 2/21/2023. As reported in this amendment, the date of this transaction was 9/21/2023.

F1 · ownership.nature: EcoR1 Capital, LLC ("EcoR1") is the investment adviser to EcoR1 Capital Fund, L.P. ("Capital Fund"), EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund") and EcoR1 Venture Opportunity Fund, L.P. ("Venture Fund"). EcoR1 is the general partner of Capital Fund and Qualified Fund, and Biotech Opportunity GP, LLC ("Biotech") is the general partner of Venture Fund. Mr. Nodelman is the manager and controlling owner of EcoR1 and Biotech. The funds hold these securities directly for the benefit of their investors. EcoR1 indirectly beneficially owns them as the investment adviser to the funds. Mr. Nodelman indirectly beneficially owns them as the control person of EcoR1. The reporting persons disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

F2 · ownership.nature: Qualified Fund is the record holder of these securities.

SEC source: 0000935836-23-000621 · ownership.xml · nonDerivative · entry 2

NODELMAN OLEG · CIK 0001454385 · Director

EcoR1 Capital, LLC · CIK 0001587114 · Director

EcoR1 Capital Fund, L.P. · CIK 0001567938 · Director

EcoR1 Capital Fund Qualified, L.P. · CIK 0001598292 · Director

EcoR1 Venture Opportunity Fund, LP · CIK 0001778011 · Director

Biotech Opportunity GP, LLC · CIK 0001816370 · Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Notes

Disclosed balance after: 12,621,775

F4 · date: The Original Form 4 inadvertently identified the date of this transaction as 2/20/2023. As reported in this amendment, the date of this transaction was 9/20/2023.

F1 · ownership.nature: EcoR1 Capital, LLC ("EcoR1") is the investment adviser to EcoR1 Capital Fund, L.P. ("Capital Fund"), EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund") and EcoR1 Venture Opportunity Fund, L.P. ("Venture Fund"). EcoR1 is the general partner of Capital Fund and Qualified Fund, and Biotech Opportunity GP, LLC ("Biotech") is the general partner of Venture Fund. Mr. Nodelman is the manager and controlling owner of EcoR1 and Biotech. The funds hold these securities directly for the benefit of their investors. EcoR1 indirectly beneficially owns them as the investment adviser to the funds. Mr. Nodelman indirectly beneficially owns them as the control person of EcoR1. The reporting persons disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

F2 · ownership.nature: Qualified Fund is the record holder of these securities.

SEC source: 0000935836-23-000621 · ownership.xml · nonDerivative · entry 1

NODELMAN OLEG · CIK 0001454385 · Director

EcoR1 Capital, LLC · CIK 0001587114 · Director

EcoR1 Capital Fund, L.P. · CIK 0001567938 · Director

EcoR1 Capital Fund Qualified, L.P. · CIK 0001598292 · Director

EcoR1 Venture Opportunity Fund, LP · CIK 0001778011 · Director

Biotech Opportunity GP, LLC · CIK 0001816370 · Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Notes

Disclosed balance after: 12,504,675

F3 · date: On 9/21/2023, the reporting persons filed a Form 4 (the "Original Form 4") that inadvertently identified the date of this transaction as 2/19/2023. As reported in this amendment, the date of this transaction was 9/19/2023. The Original Form 4 also inadvertently identified the date of the earliest transaction reported in the Original Form 4 as 2/19/2023. As reported in this amendment, the date of the earliest transaction was 9/19/2023.

F1 · ownership.nature: EcoR1 Capital, LLC ("EcoR1") is the investment adviser to EcoR1 Capital Fund, L.P. ("Capital Fund"), EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund") and EcoR1 Venture Opportunity Fund, L.P. ("Venture Fund"). EcoR1 is the general partner of Capital Fund and Qualified Fund, and Biotech Opportunity GP, LLC ("Biotech") is the general partner of Venture Fund. Mr. Nodelman is the manager and controlling owner of EcoR1 and Biotech. The funds hold these securities directly for the benefit of their investors. EcoR1 indirectly beneficially owns them as the investment adviser to the funds. Mr. Nodelman indirectly beneficially owns them as the control person of EcoR1. The reporting persons disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

F2 · ownership.nature: Qualified Fund is the record holder of these securities.

SEC source: 0001209191-23-026595 · doc4.xml · nonDerivative · entry 1

EcoR1 Panacea Holdings II, LLC · CIK 0001842055 · Director · 10% owner

EcoR1 Capital Fund, L.P. · CIK 0001567938 · Director · 10% owner

EcoR1 Capital Fund Qualified, L.P. · CIK 0001598292 · Director · 10% owner

EcoR1 Venture Opportunity Fund, LP · CIK 0001778011 · Director · 10% owner

EcoR1 Capital, LLC · CIK 0001587114 · Director · 10% owner

Biotech Opportunity GP, LLC · CIK 0001816370 · Director · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 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

F1 · kind: On April 10, 2023, Panacea Acquisition Corp. II (the "Company") announced that it did not consummate an initial business combination by April 9, 2023, the deadline under its Amended and Restated Memorandum and Articles of Association. In connection with the winding up of the Company, the Class A ordinary shares, par value $0.0001 per share, held by the Reporting Persons were surrendered for no consideration on April 28, 2023.

F1 · price: On April 10, 2023, Panacea Acquisition Corp. II (the "Company") announced that it did not consummate an initial business combination by April 9, 2023, the deadline under its Amended and Restated Memorandum and Articles of Association. In connection with the winding up of the Company, the Class A ordinary shares, par value $0.0001 per share, held by the Reporting Persons were surrendered for no consideration on April 28, 2023.

F2 · ownership.direct: The reporting owner, EcoR1 Panacea Holdings II, LLC (the "Sponsor"), in whose name the securities reported herein were held, is managed by its managing members, EcoR1 Capital Fund, L.P., EcoR1 Capital Fund Qualified, L.P. and EcoR1 Venture Opportunity Fund, L.P. The general partner of EcoR1 Capital Fund, L.P. and EcoR1 Capital Fund Qualified, L.P. is EcoR1 Capital, LLC and the general partner of EcoR1 Venture Opportunity Fund, L.P. is Biotech Opportunity GP, LLC (together with EcoR1 Capital, LLC, the "General Partners"). Oleg Nodelman is the manager of each of the General Partners. Each of the Reporting Persons may have been deemed to be a beneficial owner of the shares held by the Sponsor but each (other than the Sponsor) disclaims beneficial ownership of any such shares except to the extent of its respective pecuniary interest therein.

SEC source: 0000935836-23-000619 · ownership.xml · nonDerivative · entry 3

NODELMAN OLEG · CIK 0001454385 · Director

EcoR1 Capital, LLC · CIK 0001587114 · Director

EcoR1 Capital Fund, L.P. · CIK 0001567938 · Director

EcoR1 Capital Fund Qualified, L.P. · CIK 0001598292 · Director

EcoR1 Venture Opportunity Fund, LP · CIK 0001778011 · Director

Biotech Opportunity GP, LLC · CIK 0001816370 · Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Notes

Disclosed balance after: 12,674,775

F1 · ownership.nature: EcoR1 Capital, LLC ("EcoR1") is the investment adviser to EcoR1 Capital Fund, L.P. ("Capital Fund"), EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund") and EcoR1 Venture Opportunity Fund, L.P. ("Venture Fund"). EcoR1 is the general partner of Capital Fund and Qualified Fund, and Biotech Opportunity GP, LLC ("Biotech") is the general partner of Venture Fund. Mr. Nodelman is the manager and controlling owner of EcoR1 and Biotech. The funds hold these securities directly for the benefit of their investors. EcoR1 indirectly beneficially owns them as the investment adviser to the funds. Mr. Nodelman indirectly beneficially owns them as the control person of EcoR1. The reporting persons disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

F2 · ownership.nature: Qualified Fund is the record holder of these securities.

SEC source: 0000935836-23-000619 · ownership.xml · nonDerivative · entry 2

NODELMAN OLEG · CIK 0001454385 · Director

EcoR1 Capital, LLC · CIK 0001587114 · Director

EcoR1 Capital Fund, L.P. · CIK 0001567938 · Director

EcoR1 Capital Fund Qualified, L.P. · CIK 0001598292 · Director

EcoR1 Venture Opportunity Fund, LP · CIK 0001778011 · Director

Biotech Opportunity GP, LLC · CIK 0001816370 · Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Notes

Disclosed balance after: 12,621,775

F1 · ownership.nature: EcoR1 Capital, LLC ("EcoR1") is the investment adviser to EcoR1 Capital Fund, L.P. ("Capital Fund"), EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund") and EcoR1 Venture Opportunity Fund, L.P. ("Venture Fund"). EcoR1 is the general partner of Capital Fund and Qualified Fund, and Biotech Opportunity GP, LLC ("Biotech") is the general partner of Venture Fund. Mr. Nodelman is the manager and controlling owner of EcoR1 and Biotech. The funds hold these securities directly for the benefit of their investors. EcoR1 indirectly beneficially owns them as the investment adviser to the funds. Mr. Nodelman indirectly beneficially owns them as the control person of EcoR1. The reporting persons disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

F2 · ownership.nature: Qualified Fund is the record holder of these securities.

SEC source: 0000935836-23-000619 · ownership.xml · nonDerivative · entry 1

NODELMAN OLEG · CIK 0001454385 · Director

EcoR1 Capital, LLC · CIK 0001587114 · Director

EcoR1 Capital Fund, L.P. · CIK 0001567938 · Director

EcoR1 Capital Fund Qualified, L.P. · CIK 0001598292 · Director

EcoR1 Venture Opportunity Fund, LP · CIK 0001778011 · Director

Biotech Opportunity GP, LLC · CIK 0001816370 · Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Notes

Disclosed balance after: 12,504,675

F1 · ownership.nature: EcoR1 Capital, LLC ("EcoR1") is the investment adviser to EcoR1 Capital Fund, L.P. ("Capital Fund"), EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund") and EcoR1 Venture Opportunity Fund, L.P. ("Venture Fund"). EcoR1 is the general partner of Capital Fund and Qualified Fund, and Biotech Opportunity GP, LLC ("Biotech") is the general partner of Venture Fund. Mr. Nodelman is the manager and controlling owner of EcoR1 and Biotech. The funds hold these securities directly for the benefit of their investors. EcoR1 indirectly beneficially owns them as the investment adviser to the funds. Mr. Nodelman indirectly beneficially owns them as the control person of EcoR1. The reporting persons disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

F2 · ownership.nature: Qualified Fund is the record holder of these securities.

SEC source: 0001567619-22-009732 · doc1.xml · nonDerivative · entry 2

EcoR1 Capital, LLC · CIK 0001587114 · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Note

Disclosed balance after: 7,521,024

F1 · kind: EcoR1 Capital Fund, L.P. ("Capital Fund") and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund") are private investment funds managed by EcoR1 Capital, LLC ("EcoR1") on a parri passu basis. These securities were transferred from Capital Fund to Qualified Fund as part of a periodic rebalancing of the portfolios of the funds.

F2 · ownership.nature: The filing persons (the "Filers") are EcoR1, Oleg Nodelman and Qualified Fund. EcoR1 is the investment adviser and general partner of private funds, including Qualified Fund and Capital Fund (collectively, the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1 and a director of the Issuer. EcoR1 is filing this Form 4 for itself and Qualified Fund. The Filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934, as amended. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to beneficially own the securities indirectly as the investment adviser to the Funds, and Mr. Nodelman may be deemed to beneficially own them indirectly as the control person of EcoR1. The Filers disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

SEC source: 0001567619-22-009732 · doc1.xml · nonDerivative · entry 1

EcoR1 Capital, LLC · CIK 0001587114 · 10% owner

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Notes

Disclosed balance after: 7,521,024

F1 · kind: EcoR1 Capital Fund, L.P. ("Capital Fund") and EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund") are private investment funds managed by EcoR1 Capital, LLC ("EcoR1") on a parri passu basis. These securities were transferred from Capital Fund to Qualified Fund as part of a periodic rebalancing of the portfolios of the funds.

F2 · ownership.nature: The filing persons (the "Filers") are EcoR1, Oleg Nodelman and Qualified Fund. EcoR1 is the investment adviser and general partner of private funds, including Qualified Fund and Capital Fund (collectively, the "Funds"). Mr. Nodelman is the manager and controlling owner of EcoR1 and a director of the Issuer. EcoR1 is filing this Form 4 for itself and Qualified Fund. The Filers are filing this Form 4 jointly, but not as a group, and each expressly disclaims membership in a group within the meaning of Rule 13d-5(b) under the Securities Exchange Act of 1934, as amended. The Funds hold these securities directly for the benefit of their investors. EcoR1 may be deemed to beneficially own the securities indirectly as the investment adviser to the Funds, and Mr. Nodelman may be deemed to beneficially own them indirectly as the control person of EcoR1. The Filers disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

F3 · ownership.nature: After this transaction, Qualified Fund held 7,042,903 shares of the Issuer's Common Stock.

SEC source: 0001567619-21-021329 · doc1.xml · nonDerivative · entry 6

NODELMAN OLEG · CIK 0001454385 · Director

EcoR1 Capital, LLC · CIK 0001587114 · Affiliate of Director

EcoR1 Capital Fund, L.P. · CIK 0001567938 · Affiliate of Director

EcoR1 Capital Fund Qualified, L.P. · CIK 0001598292 · Affiliate of Director

EcoR1 Venture Opportunity Fund, LP · CIK 0001778011 · Affiliate of Director

Biotech Opportunity GP, LLC · CIK 0001816370 · Affiliate of Director

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Notes 2 and 4

Disclosed balance after: 1,169,241

F2 · ownership.nature: EcoR1 is the investment adviser to Capital Fund, Qualified Fund and EcoR1 Venture Opportunity Fund, L.P. ("Venture Fund"). EcoR1 is the general partner of Capital Fund and Qualified Fund, and Biotech Opportunity GP, LLC ("Biotech") is the general partner of Venture Fund. Mr. Nodelman is the manager and controlling owner of EcoR1 and Biotech. The funds hold these securities directly for the benefit of their investors. EcoR1 indirectly beneficially owns them as the investment adviser to the funds. Mr. Nodelman indirectly beneficially owns them as the control person of EcoR1. The Reporting Persons disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

F4 · ownership.nature: Capital Fund is the record holder of these securities.

SEC source: 0001567619-21-021329 · doc1.xml · nonDerivative · entry 5

NODELMAN OLEG · CIK 0001454385 · Director

EcoR1 Capital, LLC · CIK 0001587114 · Affiliate of Director

EcoR1 Capital Fund, L.P. · CIK 0001567938 · Affiliate of Director

EcoR1 Capital Fund Qualified, L.P. · CIK 0001598292 · Affiliate of Director

EcoR1 Venture Opportunity Fund, LP · CIK 0001778011 · Affiliate of Director

Biotech Opportunity GP, LLC · CIK 0001816370 · Affiliate of Director

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Notes 2 and 3

Disclosed balance after: 7,361,675

F2 · ownership.nature: EcoR1 is the investment adviser to Capital Fund, Qualified Fund and EcoR1 Venture Opportunity Fund, L.P. ("Venture Fund"). EcoR1 is the general partner of Capital Fund and Qualified Fund, and Biotech Opportunity GP, LLC ("Biotech") is the general partner of Venture Fund. Mr. Nodelman is the manager and controlling owner of EcoR1 and Biotech. The funds hold these securities directly for the benefit of their investors. EcoR1 indirectly beneficially owns them as the investment adviser to the funds. Mr. Nodelman indirectly beneficially owns them as the control person of EcoR1. The Reporting Persons disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

F3 · ownership.nature: Qualified Fund is the record holder of these securities.

SEC source: 0001209191-21-062590 · doc4.xml · derivative · entry 1

NODELMAN OLEG · CIK 0001454385 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,229

Underlying: Class A Common Stock · 45,229 shares

Expires 2031-10-28

F1 · derivative.exercise_date: 100% of the shares subject to the option shall vest on the earlier of: (i) the one-year anniversary of the grant date (October 29, 2022); or (ii) the next shareholder annual meeting, subject to the Reporting Person's continuous service through such applicable vesting date.