RTW INVESTMENTS, LP

SEC source: 0001231919-26-000786 · form4-07232026_090723.xml · derivative · entry 8

RTW INVESTMENTS, LP · CIK 0001493215 · 10% owner

WONG RODERICK · CIK 0001493280 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 1,771

Underlying: Common Stock · 1,771 shares

Expires not disclosed

F8 · kind: On July 21, 2026, RTW Innovation entered into an Exchange Agreement with the Issuer pursuant to which Other RTW Fund exchanged, for no additional consideration, 1,771 shares of the Issuer's Common Stock for a Pre-Funded Warrant exercisable for 1,771 shares of the Issuer's Common Stock.

F8 · price: On July 21, 2026, RTW Innovation entered into an Exchange Agreement with the Issuer pursuant to which Other RTW Fund exchanged, for no additional consideration, 1,771 shares of the Issuer's Common Stock for a Pre-Funded Warrant exercisable for 1,771 shares of the Issuer's Common Stock.

F10 · derivative.exercise_date: The Pre-Funded Warrant has no expiration date and is exercisable immediately. Notwithstanding the foregoing, the holder shall not be entitled to exercise the Pre-Funded Warrant to the extent that it would cause the aggregate number of shares of Common Stock beneficially owned by the holder, together with its Attribution Parties (as defined in the Pre-Funded Warrant), to exceed 9.99% of the total number of issued and outstanding shares of Common Stock of the Issuer following such exercise.

F10 · derivative.expiration_date: The Pre-Funded Warrant has no expiration date and is exercisable immediately. Notwithstanding the foregoing, the holder shall not be entitled to exercise the Pre-Funded Warrant to the extent that it would cause the aggregate number of shares of Common Stock beneficially owned by the holder, together with its Attribution Parties (as defined in the Pre-Funded Warrant), to exceed 9.99% of the total number of issued and outstanding shares of Common Stock of the Issuer following such exercise.

F2 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including the Master Fund, RTW Innovation Master Fund, Ltd. ("RTW Innovation"), RTW Biotech Opportunities Operating Ltd. ("RTW Biotech Fund") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F9 · ownership.nature: Held by an Other RTW Fund.

SEC source: 0001231919-26-000786 · form4-07232026_090723.xml · derivative · entry 7

RTW INVESTMENTS, LP · CIK 0001493215 · 10% owner

WONG RODERICK · CIK 0001493280 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 19,934

Underlying: Common Stock · 19,934 shares

Expires not disclosed

F6 · kind: On July 21, 2026, RTW Biotech Fund entered into an Exchange Agreement with the Issuer pursuant to which the RTW Biotech Fund exchanged, for no additional consideration, 19,934 shares of the Issuer's Common Stock for a Pre-Funded Warrant exercisable for 19,934 shares of the Issuer's Common Stock.

F6 · price: On July 21, 2026, RTW Biotech Fund entered into an Exchange Agreement with the Issuer pursuant to which the RTW Biotech Fund exchanged, for no additional consideration, 19,934 shares of the Issuer's Common Stock for a Pre-Funded Warrant exercisable for 19,934 shares of the Issuer's Common Stock.

F10 · derivative.exercise_date: The Pre-Funded Warrant has no expiration date and is exercisable immediately. Notwithstanding the foregoing, the holder shall not be entitled to exercise the Pre-Funded Warrant to the extent that it would cause the aggregate number of shares of Common Stock beneficially owned by the holder, together with its Attribution Parties (as defined in the Pre-Funded Warrant), to exceed 9.99% of the total number of issued and outstanding shares of Common Stock of the Issuer following such exercise.

F10 · derivative.expiration_date: The Pre-Funded Warrant has no expiration date and is exercisable immediately. Notwithstanding the foregoing, the holder shall not be entitled to exercise the Pre-Funded Warrant to the extent that it would cause the aggregate number of shares of Common Stock beneficially owned by the holder, together with its Attribution Parties (as defined in the Pre-Funded Warrant), to exceed 9.99% of the total number of issued and outstanding shares of Common Stock of the Issuer following such exercise.

F2 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including the Master Fund, RTW Innovation Master Fund, Ltd. ("RTW Innovation"), RTW Biotech Opportunities Operating Ltd. ("RTW Biotech Fund") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F7 · ownership.nature: Held directly by RTW Biotech Fund.

SEC source: 0001231919-26-000786 · form4-07232026_090723.xml · derivative · entry 6

RTW INVESTMENTS, LP · CIK 0001493215 · 10% owner

WONG RODERICK · CIK 0001493280 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 161,807

Underlying: Common Stock · 161,807 shares

Expires not disclosed

F4 · kind: On July 21, 2026, RTW Innovation entered into an Exchange Agreement with the Issuer pursuant to which the RTW Innovation exchanged, for no additional consideration, 161,807 shares of the Issuer's Common Stock for a Pre-Funded Warrant exercisable for 161,807 shares of the Issuer's Common Stock.

F4 · price: On July 21, 2026, RTW Innovation entered into an Exchange Agreement with the Issuer pursuant to which the RTW Innovation exchanged, for no additional consideration, 161,807 shares of the Issuer's Common Stock for a Pre-Funded Warrant exercisable for 161,807 shares of the Issuer's Common Stock.

F10 · derivative.exercise_date: The Pre-Funded Warrant has no expiration date and is exercisable immediately. Notwithstanding the foregoing, the holder shall not be entitled to exercise the Pre-Funded Warrant to the extent that it would cause the aggregate number of shares of Common Stock beneficially owned by the holder, together with its Attribution Parties (as defined in the Pre-Funded Warrant), to exceed 9.99% of the total number of issued and outstanding shares of Common Stock of the Issuer following such exercise.

F10 · derivative.expiration_date: The Pre-Funded Warrant has no expiration date and is exercisable immediately. Notwithstanding the foregoing, the holder shall not be entitled to exercise the Pre-Funded Warrant to the extent that it would cause the aggregate number of shares of Common Stock beneficially owned by the holder, together with its Attribution Parties (as defined in the Pre-Funded Warrant), to exceed 9.99% of the total number of issued and outstanding shares of Common Stock of the Issuer following such exercise.

F2 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including the Master Fund, RTW Innovation Master Fund, Ltd. ("RTW Innovation"), RTW Biotech Opportunities Operating Ltd. ("RTW Biotech Fund") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F5 · ownership.nature: Held directly by RTW Innovation.

SEC source: 0001231919-26-000786 · form4-07232026_090723.xml · derivative · entry 5

RTW INVESTMENTS, LP · CIK 0001493215 · 10% owner

WONG RODERICK · CIK 0001493280 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 209,254

Underlying: Common Stock · 209,254 shares

Expires not disclosed

F1 · kind: On July 21, 2026, RTW Master Fund, Ltd. ("Master Fund") entered into an Exchange Agreement with the Issuer pursuant to which the Master Fund exchanged, for no additional consideration, 209,254 shares of the Issuer's Common Stock for a pre-funded warrant exercisable for up to 209,254 shares of the Issuer's Common Stock at an exercise price of $0.0001 per share (a "Pre-Funded Warrant").

F1 · price: On July 21, 2026, RTW Master Fund, Ltd. ("Master Fund") entered into an Exchange Agreement with the Issuer pursuant to which the Master Fund exchanged, for no additional consideration, 209,254 shares of the Issuer's Common Stock for a pre-funded warrant exercisable for up to 209,254 shares of the Issuer's Common Stock at an exercise price of $0.0001 per share (a "Pre-Funded Warrant").

F10 · derivative.exercise_date: The Pre-Funded Warrant has no expiration date and is exercisable immediately. Notwithstanding the foregoing, the holder shall not be entitled to exercise the Pre-Funded Warrant to the extent that it would cause the aggregate number of shares of Common Stock beneficially owned by the holder, together with its Attribution Parties (as defined in the Pre-Funded Warrant), to exceed 9.99% of the total number of issued and outstanding shares of Common Stock of the Issuer following such exercise.

F10 · derivative.expiration_date: The Pre-Funded Warrant has no expiration date and is exercisable immediately. Notwithstanding the foregoing, the holder shall not be entitled to exercise the Pre-Funded Warrant to the extent that it would cause the aggregate number of shares of Common Stock beneficially owned by the holder, together with its Attribution Parties (as defined in the Pre-Funded Warrant), to exceed 9.99% of the total number of issued and outstanding shares of Common Stock of the Issuer following such exercise.

F2 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including the Master Fund, RTW Innovation Master Fund, Ltd. ("RTW Innovation"), RTW Biotech Opportunities Operating Ltd. ("RTW Biotech Fund") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F3 · ownership.nature: Held directly by Master Fund.

SEC source: 0001231919-26-000786 · form4-07232026_090723.xml · nonDerivative · entry 4

RTW INVESTMENTS, LP · CIK 0001493215 · 10% owner

WONG RODERICK · CIK 0001493280 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F8 · kind: On July 21, 2026, RTW Innovation entered into an Exchange Agreement with the Issuer pursuant to which Other RTW Fund exchanged, for no additional consideration, 1,771 shares of the Issuer's Common Stock for a Pre-Funded Warrant exercisable for 1,771 shares of the Issuer's Common Stock.

F8 · price: On July 21, 2026, RTW Innovation entered into an Exchange Agreement with the Issuer pursuant to which Other RTW Fund exchanged, for no additional consideration, 1,771 shares of the Issuer's Common Stock for a Pre-Funded Warrant exercisable for 1,771 shares of the Issuer's Common Stock.

F2 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including the Master Fund, RTW Innovation Master Fund, Ltd. ("RTW Innovation"), RTW Biotech Opportunities Operating Ltd. ("RTW Biotech Fund") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F9 · ownership.nature: Held by an Other RTW Fund.

SEC source: 0001231919-26-000786 · form4-07232026_090723.xml · nonDerivative · entry 3

RTW INVESTMENTS, LP · CIK 0001493215 · 10% owner

WONG RODERICK · CIK 0001493280 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F6 · kind: On July 21, 2026, RTW Biotech Fund entered into an Exchange Agreement with the Issuer pursuant to which the RTW Biotech Fund exchanged, for no additional consideration, 19,934 shares of the Issuer's Common Stock for a Pre-Funded Warrant exercisable for 19,934 shares of the Issuer's Common Stock.

F6 · price: On July 21, 2026, RTW Biotech Fund entered into an Exchange Agreement with the Issuer pursuant to which the RTW Biotech Fund exchanged, for no additional consideration, 19,934 shares of the Issuer's Common Stock for a Pre-Funded Warrant exercisable for 19,934 shares of the Issuer's Common Stock.

F2 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including the Master Fund, RTW Innovation Master Fund, Ltd. ("RTW Innovation"), RTW Biotech Opportunities Operating Ltd. ("RTW Biotech Fund") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F7 · ownership.nature: Held directly by RTW Biotech Fund.

SEC source: 0001231919-26-000786 · form4-07232026_090723.xml · nonDerivative · entry 2

RTW INVESTMENTS, LP · CIK 0001493215 · 10% owner

WONG RODERICK · CIK 0001493280 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F4 · kind: On July 21, 2026, RTW Innovation entered into an Exchange Agreement with the Issuer pursuant to which the RTW Innovation exchanged, for no additional consideration, 161,807 shares of the Issuer's Common Stock for a Pre-Funded Warrant exercisable for 161,807 shares of the Issuer's Common Stock.

F4 · price: On July 21, 2026, RTW Innovation entered into an Exchange Agreement with the Issuer pursuant to which the RTW Innovation exchanged, for no additional consideration, 161,807 shares of the Issuer's Common Stock for a Pre-Funded Warrant exercisable for 161,807 shares of the Issuer's Common Stock.

F2 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including the Master Fund, RTW Innovation Master Fund, Ltd. ("RTW Innovation"), RTW Biotech Opportunities Operating Ltd. ("RTW Biotech Fund") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F5 · ownership.nature: Held directly by RTW Innovation.

SEC source: 0001231919-26-000786 · form4-07232026_090723.xml · nonDerivative · entry 1

RTW INVESTMENTS, LP · CIK 0001493215 · 10% owner

WONG RODERICK · CIK 0001493280 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F1 · kind: On July 21, 2026, RTW Master Fund, Ltd. ("Master Fund") entered into an Exchange Agreement with the Issuer pursuant to which the Master Fund exchanged, for no additional consideration, 209,254 shares of the Issuer's Common Stock for a pre-funded warrant exercisable for up to 209,254 shares of the Issuer's Common Stock at an exercise price of $0.0001 per share (a "Pre-Funded Warrant").

F1 · price: On July 21, 2026, RTW Master Fund, Ltd. ("Master Fund") entered into an Exchange Agreement with the Issuer pursuant to which the Master Fund exchanged, for no additional consideration, 209,254 shares of the Issuer's Common Stock for a pre-funded warrant exercisable for up to 209,254 shares of the Issuer's Common Stock at an exercise price of $0.0001 per share (a "Pre-Funded Warrant").

F2 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including the Master Fund, RTW Innovation Master Fund, Ltd. ("RTW Innovation"), RTW Biotech Opportunities Operating Ltd. ("RTW Biotech Fund") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F3 · ownership.nature: Held directly by Master Fund.

SEC source: 0001231919-26-000427 · form4-04292026_090438.xml · derivative · entry 3

RTW INVESTMENTS, LP · CIK 0001493215 · 10% owner

WONG RODERICK · CIK 0001493280 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 2,386,331

Underlying: Common Stock · 1,250,032 shares

Expires not disclosed

F1 · kind: On April 27, 2026, the RTW Funds exercised Pre-Funded Warrants to purchase an aggregate of 1,250,032 shares of the Issuer's common stock for $0.0001 a share. The RTW Funds exercised the Pre-Funded Warrants on a cashless basis, resulting in the Issuer's withholding 32 of such shares to satisfy the exercise price of the Pre-Funded Warrants, and the issuance to the RTW Funds of an aggregate of 1,250,000 shares.

F3 · derivative.exercise_date: The Pre-Funded Warrants have no expiration date and are exercisable immediately. Notwithstanding the foregoing, the RTW Funds shall not be entitled to exercise the Pre-Funded Warrants to the extent that it would cause the aggregate number of shares of Common Stock beneficially owned by the RTW Funds, together with their Attribution Parties (as defined in the Pre-Funded Warrants), to exceed 19.99% of the total number of issued and outstanding shares of Common Stock of the Issuer following such exercise.

F3 · derivative.expiration_date: The Pre-Funded Warrants have no expiration date and are exercisable immediately. Notwithstanding the foregoing, the RTW Funds shall not be entitled to exercise the Pre-Funded Warrants to the extent that it would cause the aggregate number of shares of Common Stock beneficially owned by the RTW Funds, together with their Attribution Parties (as defined in the Pre-Funded Warrants), to exceed 19.99% of the total number of issued and outstanding shares of Common Stock of the Issuer following such exercise.

F2 · ownership.nature: Held by certain affiliated funds (the "RTW Funds") managed by RTW Investments, LP ("RTW"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of RTW. The Reporting Persons disclaim beneficial ownership of the reported securities for purposes of Section 16 under the Securities Exchange Act of 1934, as amended, except to the extent of their pecuniary interest therein.

SEC source: 0001231919-26-000427 · form4-04292026_090438.xml · nonDerivative · entry 2

RTW INVESTMENTS, LP · CIK 0001493215 · 10% owner

WONG RODERICK · CIK 0001493280 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 9,556,063

F1 · kind: On April 27, 2026, the RTW Funds exercised Pre-Funded Warrants to purchase an aggregate of 1,250,032 shares of the Issuer's common stock for $0.0001 a share. The RTW Funds exercised the Pre-Funded Warrants on a cashless basis, resulting in the Issuer's withholding 32 of such shares to satisfy the exercise price of the Pre-Funded Warrants, and the issuance to the RTW Funds of an aggregate of 1,250,000 shares.

F2 · ownership.nature: Held by certain affiliated funds (the "RTW Funds") managed by RTW Investments, LP ("RTW"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of RTW. The Reporting Persons disclaim beneficial ownership of the reported securities for purposes of Section 16 under the Securities Exchange Act of 1934, as amended, except to the extent of their pecuniary interest therein.

SEC source: 0001231919-26-000427 · form4-04292026_090438.xml · nonDerivative · entry 1

RTW INVESTMENTS, LP · CIK 0001493215 · 10% owner

WONG RODERICK · CIK 0001493280 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 9,556,095

F1 · kind: On April 27, 2026, the RTW Funds exercised Pre-Funded Warrants to purchase an aggregate of 1,250,032 shares of the Issuer's common stock for $0.0001 a share. The RTW Funds exercised the Pre-Funded Warrants on a cashless basis, resulting in the Issuer's withholding 32 of such shares to satisfy the exercise price of the Pre-Funded Warrants, and the issuance to the RTW Funds of an aggregate of 1,250,000 shares.

F2 · ownership.nature: Held by certain affiliated funds (the "RTW Funds") managed by RTW Investments, LP ("RTW"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of RTW. The Reporting Persons disclaim beneficial ownership of the reported securities for purposes of Section 16 under the Securities Exchange Act of 1934, as amended, except to the extent of their pecuniary interest therein.

SEC source: 0001231919-26-000390 · form4-04222026_040401.xml · derivative · entry 4

RTW INVESTMENTS, LP · CIK 0001493215 · 10% owner

WONG RODERICK · CIK 0001493280 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 2,026,820 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: Each share of Series A Preferred Stock and Series B Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration on a 1-for-1 basis and had no expiration date.

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

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

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

F2 · ownership.nature: Held by certain affiliated funds managed by RTW Investments, LP ("RTW"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of RTW. The Reporting Persons disclaim beneficial ownership of the reported securities for purposes of Section 16 under the Securities Exchange Act of 1934, as amended, except to the extent of their pecuniary interest therein.

SEC source: 0001231919-26-000390 · form4-04222026_040401.xml · derivative · entry 3

RTW INVESTMENTS, LP · CIK 0001493215 · 10% owner

WONG RODERICK · CIK 0001493280 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 8,250,000 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: Each share of Series A Preferred Stock and Series B Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration on a 1-for-1 basis and had no expiration date.

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

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

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

F2 · ownership.nature: Held by certain affiliated funds managed by RTW Investments, LP ("RTW"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of RTW. The Reporting Persons disclaim beneficial ownership of the reported securities for purposes of Section 16 under the Securities Exchange Act of 1934, as amended, except to the extent of their pecuniary interest therein.

SEC source: 0001231919-26-000390 · form4-04222026_040401.xml · nonDerivative · entry 2

RTW INVESTMENTS, LP · CIK 0001493215 · 10% owner

WONG RODERICK · CIK 0001493280 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 10,776,820

F2 · ownership.nature: Held by certain affiliated funds managed by RTW Investments, LP ("RTW"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of RTW. The Reporting Persons disclaim beneficial ownership of the reported securities for purposes of Section 16 under the Securities Exchange Act of 1934, as amended, except to the extent of their pecuniary interest therein.

SEC source: 0001231919-26-000390 · form4-04222026_040401.xml · nonDerivative · entry 1

RTW INVESTMENTS, LP · CIK 0001493215 · 10% owner

WONG RODERICK · CIK 0001493280 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 10,276,820

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: Each share of Series A Preferred Stock and Series B Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration on a 1-for-1 basis and had no expiration date.

F2 · ownership.nature: Held by certain affiliated funds managed by RTW Investments, LP ("RTW"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of RTW. The Reporting Persons disclaim beneficial ownership of the reported securities for purposes of Section 16 under the Securities Exchange Act of 1934, as amended, except to the extent of their pecuniary interest therein.

SEC source: 0001231919-25-000468 · form4-11132025_101154.xml · derivative · entry 7

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner

WONG RODERICK · CIK 0001493280 · Director · 10% owner

RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner

RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 96,896

Underlying: Common Stock · 96,896 shares

Expires not disclosed

F1 · price: The Reporting Persons acquired the shares of Common Stock and Warrants in a private placement by the Issuer. The purchase price per share of Common Stock and accompanying Warrant was $1.67 per share and accompanying Warrant.

F6 · derivative.exercise_date: The Warrant is exercisable following receipt of the Stockholder Approval (as defined herein) at an exercise price of $1.67 per share and terminates on the five year anniversary of the date of the Stockholder Approval. The holder of the Warrant may not exercise such Warrant if the holder, together with its affiliates, would beneficially own more than 4.99% (or, at the election of the holder, 9.99%) of the number of shares of Common Stock outstanding immediately after giving effect to such exercise. The Issuer is required to use its reasonable best efforts to hold a meeting of stockholders no later than January 31, 2026 for the purpose of, among other things, obtaining stockholder approval of the issuance of the shares of Common Stock issuable upon exercise of the Warrants (the "Stockholder Approval").

F6 · derivative.expiration_date: The Warrant is exercisable following receipt of the Stockholder Approval (as defined herein) at an exercise price of $1.67 per share and terminates on the five year anniversary of the date of the Stockholder Approval. The holder of the Warrant may not exercise such Warrant if the holder, together with its affiliates, would beneficially own more than 4.99% (or, at the election of the holder, 9.99%) of the number of shares of Common Stock outstanding immediately after giving effect to such exercise. The Issuer is required to use its reasonable best efforts to hold a meeting of stockholders no later than January 31, 2026 for the purpose of, among other things, obtaining stockholder approval of the issuance of the shares of Common Stock issuable upon exercise of the Warrants (the "Stockholder Approval").

F2 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. ("Master Fund"), RTW Innovation Master Fund, Ltd. ("RTW Innovation") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F5 · ownership.nature: Held by an Other RTW Fund.

SEC source: 0001231919-25-000468 · form4-11132025_101154.xml · derivative · entry 6

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner

WONG RODERICK · CIK 0001493280 · Director · 10% owner

RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner

RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 767,848

Underlying: Common Stock · 767,848 shares

Expires not disclosed

F1 · price: The Reporting Persons acquired the shares of Common Stock and Warrants in a private placement by the Issuer. The purchase price per share of Common Stock and accompanying Warrant was $1.67 per share and accompanying Warrant.

F6 · derivative.exercise_date: The Warrant is exercisable following receipt of the Stockholder Approval (as defined herein) at an exercise price of $1.67 per share and terminates on the five year anniversary of the date of the Stockholder Approval. The holder of the Warrant may not exercise such Warrant if the holder, together with its affiliates, would beneficially own more than 4.99% (or, at the election of the holder, 9.99%) of the number of shares of Common Stock outstanding immediately after giving effect to such exercise. The Issuer is required to use its reasonable best efforts to hold a meeting of stockholders no later than January 31, 2026 for the purpose of, among other things, obtaining stockholder approval of the issuance of the shares of Common Stock issuable upon exercise of the Warrants (the "Stockholder Approval").

F6 · derivative.expiration_date: The Warrant is exercisable following receipt of the Stockholder Approval (as defined herein) at an exercise price of $1.67 per share and terminates on the five year anniversary of the date of the Stockholder Approval. The holder of the Warrant may not exercise such Warrant if the holder, together with its affiliates, would beneficially own more than 4.99% (or, at the election of the holder, 9.99%) of the number of shares of Common Stock outstanding immediately after giving effect to such exercise. The Issuer is required to use its reasonable best efforts to hold a meeting of stockholders no later than January 31, 2026 for the purpose of, among other things, obtaining stockholder approval of the issuance of the shares of Common Stock issuable upon exercise of the Warrants (the "Stockholder Approval").

F2 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. ("Master Fund"), RTW Innovation Master Fund, Ltd. ("RTW Innovation") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F4 · ownership.nature: Held directly by RTW Innovation.

SEC source: 0001231919-25-000468 · form4-11132025_101154.xml · derivative · entry 5

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner

WONG RODERICK · CIK 0001493280 · Director · 10% owner

RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner

RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 991,544

Underlying: Common Stock · 991,544 shares

Expires not disclosed

F1 · price: The Reporting Persons acquired the shares of Common Stock and Warrants in a private placement by the Issuer. The purchase price per share of Common Stock and accompanying Warrant was $1.67 per share and accompanying Warrant.

F6 · derivative.exercise_date: The Warrant is exercisable following receipt of the Stockholder Approval (as defined herein) at an exercise price of $1.67 per share and terminates on the five year anniversary of the date of the Stockholder Approval. The holder of the Warrant may not exercise such Warrant if the holder, together with its affiliates, would beneficially own more than 4.99% (or, at the election of the holder, 9.99%) of the number of shares of Common Stock outstanding immediately after giving effect to such exercise. The Issuer is required to use its reasonable best efforts to hold a meeting of stockholders no later than January 31, 2026 for the purpose of, among other things, obtaining stockholder approval of the issuance of the shares of Common Stock issuable upon exercise of the Warrants (the "Stockholder Approval").

F6 · derivative.expiration_date: The Warrant is exercisable following receipt of the Stockholder Approval (as defined herein) at an exercise price of $1.67 per share and terminates on the five year anniversary of the date of the Stockholder Approval. The holder of the Warrant may not exercise such Warrant if the holder, together with its affiliates, would beneficially own more than 4.99% (or, at the election of the holder, 9.99%) of the number of shares of Common Stock outstanding immediately after giving effect to such exercise. The Issuer is required to use its reasonable best efforts to hold a meeting of stockholders no later than January 31, 2026 for the purpose of, among other things, obtaining stockholder approval of the issuance of the shares of Common Stock issuable upon exercise of the Warrants (the "Stockholder Approval").

F2 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. ("Master Fund"), RTW Innovation Master Fund, Ltd. ("RTW Innovation") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F3 · ownership.nature: Held directly by Master Fund.

SEC source: 0001231919-25-000468 · form4-11132025_101154.xml · nonDerivative · entry 3

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner

WONG RODERICK · CIK 0001493280 · Director · 10% owner

RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner

RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 298,992

F1 · price: The Reporting Persons acquired the shares of Common Stock and Warrants in a private placement by the Issuer. The purchase price per share of Common Stock and accompanying Warrant was $1.67 per share and accompanying Warrant.

F2 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. ("Master Fund"), RTW Innovation Master Fund, Ltd. ("RTW Innovation") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F5 · ownership.nature: Held by an Other RTW Fund.

SEC source: 0001231919-25-000468 · form4-11132025_101154.xml · nonDerivative · entry 2

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner

WONG RODERICK · CIK 0001493280 · Director · 10% owner

RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner

RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 2,427,089

F1 · price: The Reporting Persons acquired the shares of Common Stock and Warrants in a private placement by the Issuer. The purchase price per share of Common Stock and accompanying Warrant was $1.67 per share and accompanying Warrant.

F2 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. ("Master Fund"), RTW Innovation Master Fund, Ltd. ("RTW Innovation") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F4 · ownership.nature: Held directly by RTW Innovation.

SEC source: 0001231919-25-000468 · form4-11132025_101154.xml · nonDerivative · entry 1

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner

WONG RODERICK · CIK 0001493280 · Director · 10% owner

RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner

RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 3,138,798

F1 · price: The Reporting Persons acquired the shares of Common Stock and Warrants in a private placement by the Issuer. The purchase price per share of Common Stock and accompanying Warrant was $1.67 per share and accompanying Warrant.

F2 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. ("Master Fund"), RTW Innovation Master Fund, Ltd. ("RTW Innovation") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F3 · ownership.nature: Held directly by Master Fund.

SEC source: 0001231919-25-000449 · form4-11072025_101100.xml · derivative · entry 10

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner

WONG RODERICK · CIK 0001493280 · Director · 10% owner

RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner

RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: Not disclosed

Underlying: Common Stock · 37,863 shares

Expires 2031-04-16

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

F5 · derivative.exercise_date: On November 5, 2025, pursuant to the terms of that certain Note Purchase Agreement dated April 14, 2024 as amended through April 15, 2025 (the "Amended Note Purchase Agreement"), the Reporting Persons delivered, and the Issuer accepted, conversion notices to convert $5.0 million aggregate principal amount of the convertible senior secured notes (the "Notes") held by the Reporting Persons at the floor conversion price of $3.35 per share. The remaining outstanding amount of the Notes remains convertible at a conversion price of $40.50 per share, as well as additional conversion prices in the discretion of the Issuer (the "Discretionary Conversions").

F6 · derivative.exercise_date: The Notes bear interest at an annual rate of 6.0%, which is payable quarterly in cash, or, at the Issuer's option, in kind for the first three years. The reported amount of shares does not give effect to any increase in principal amount as a result of PIK interest payments. The maturity date of the Notes is April 16, 2031. Pursuant to the Amended Note Purchase Agreement, the RTW Funds may not convert the Notes to the extent that such conversion would result in the RTW Funds beneficially owning more than 9.99% of the Issuer's common stock after giving effect to such conversion, unless converted pursuant to a Discretionary Conversion.

F1 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. ("Master Fund"), RTW Innovation Master Fund, Ltd. ("RTW Innovation") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F4 · ownership.nature: Held by an Other RTW Fund.

SEC source: 0001231919-25-000449 · form4-11072025_101100.xml · derivative · entry 9

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner

WONG RODERICK · CIK 0001493280 · Director · 10% owner

RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner

RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: Not disclosed

Underlying: Common Stock · 37,863 shares

Expires 2031-04-16

F5 · derivative.exercise_date: On November 5, 2025, pursuant to the terms of that certain Note Purchase Agreement dated April 14, 2024 as amended through April 15, 2025 (the "Amended Note Purchase Agreement"), the Reporting Persons delivered, and the Issuer accepted, conversion notices to convert $5.0 million aggregate principal amount of the convertible senior secured notes (the "Notes") held by the Reporting Persons at the floor conversion price of $3.35 per share. The remaining outstanding amount of the Notes remains convertible at a conversion price of $40.50 per share, as well as additional conversion prices in the discretion of the Issuer (the "Discretionary Conversions").

F6 · derivative.exercise_date: The Notes bear interest at an annual rate of 6.0%, which is payable quarterly in cash, or, at the Issuer's option, in kind for the first three years. The reported amount of shares does not give effect to any increase in principal amount as a result of PIK interest payments. The maturity date of the Notes is April 16, 2031. Pursuant to the Amended Note Purchase Agreement, the RTW Funds may not convert the Notes to the extent that such conversion would result in the RTW Funds beneficially owning more than 9.99% of the Issuer's common stock after giving effect to such conversion, unless converted pursuant to a Discretionary Conversion.

F1 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. ("Master Fund"), RTW Innovation Master Fund, Ltd. ("RTW Innovation") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F4 · ownership.nature: Held by an Other RTW Fund.

SEC source: 0001231919-25-000449 · form4-11072025_101100.xml · derivative · entry 8

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner

WONG RODERICK · CIK 0001493280 · Director · 10% owner

RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner

RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 631,954 shares

Expires 2031-04-16

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

F5 · derivative.exercise_date: On November 5, 2025, pursuant to the terms of that certain Note Purchase Agreement dated April 14, 2024 as amended through April 15, 2025 (the "Amended Note Purchase Agreement"), the Reporting Persons delivered, and the Issuer accepted, conversion notices to convert $5.0 million aggregate principal amount of the convertible senior secured notes (the "Notes") held by the Reporting Persons at the floor conversion price of $3.35 per share. The remaining outstanding amount of the Notes remains convertible at a conversion price of $40.50 per share, as well as additional conversion prices in the discretion of the Issuer (the "Discretionary Conversions").

F6 · derivative.exercise_date: The Notes bear interest at an annual rate of 6.0%, which is payable quarterly in cash, or, at the Issuer's option, in kind for the first three years. The reported amount of shares does not give effect to any increase in principal amount as a result of PIK interest payments. The maturity date of the Notes is April 16, 2031. Pursuant to the Amended Note Purchase Agreement, the RTW Funds may not convert the Notes to the extent that such conversion would result in the RTW Funds beneficially owning more than 9.99% of the Issuer's common stock after giving effect to such conversion, unless converted pursuant to a Discretionary Conversion.

F1 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. ("Master Fund"), RTW Innovation Master Fund, Ltd. ("RTW Innovation") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F3 · ownership.nature: Held directly by RTW Innovation.

SEC source: 0001231919-25-000449 · form4-11072025_101100.xml · derivative · entry 7

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner

WONG RODERICK · CIK 0001493280 · Director · 10% owner

RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner

RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: Not disclosed

Underlying: Common Stock · 631,954 shares

Expires 2031-04-16

F5 · derivative.exercise_date: On November 5, 2025, pursuant to the terms of that certain Note Purchase Agreement dated April 14, 2024 as amended through April 15, 2025 (the "Amended Note Purchase Agreement"), the Reporting Persons delivered, and the Issuer accepted, conversion notices to convert $5.0 million aggregate principal amount of the convertible senior secured notes (the "Notes") held by the Reporting Persons at the floor conversion price of $3.35 per share. The remaining outstanding amount of the Notes remains convertible at a conversion price of $40.50 per share, as well as additional conversion prices in the discretion of the Issuer (the "Discretionary Conversions").

F6 · derivative.exercise_date: The Notes bear interest at an annual rate of 6.0%, which is payable quarterly in cash, or, at the Issuer's option, in kind for the first three years. The reported amount of shares does not give effect to any increase in principal amount as a result of PIK interest payments. The maturity date of the Notes is April 16, 2031. Pursuant to the Amended Note Purchase Agreement, the RTW Funds may not convert the Notes to the extent that such conversion would result in the RTW Funds beneficially owning more than 9.99% of the Issuer's common stock after giving effect to such conversion, unless converted pursuant to a Discretionary Conversion.

F1 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. ("Master Fund"), RTW Innovation Master Fund, Ltd. ("RTW Innovation") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F3 · ownership.nature: Held directly by RTW Innovation.

SEC source: 0001231919-25-000449 · form4-11072025_101100.xml · derivative · entry 6

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner

WONG RODERICK · CIK 0001493280 · Director · 10% owner

RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner

RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: Not disclosed

Underlying: Common Stock · 822,722 shares

Expires 2031-04-16

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

F5 · derivative.exercise_date: On November 5, 2025, pursuant to the terms of that certain Note Purchase Agreement dated April 14, 2024 as amended through April 15, 2025 (the "Amended Note Purchase Agreement"), the Reporting Persons delivered, and the Issuer accepted, conversion notices to convert $5.0 million aggregate principal amount of the convertible senior secured notes (the "Notes") held by the Reporting Persons at the floor conversion price of $3.35 per share. The remaining outstanding amount of the Notes remains convertible at a conversion price of $40.50 per share, as well as additional conversion prices in the discretion of the Issuer (the "Discretionary Conversions").

F6 · derivative.exercise_date: The Notes bear interest at an annual rate of 6.0%, which is payable quarterly in cash, or, at the Issuer's option, in kind for the first three years. The reported amount of shares does not give effect to any increase in principal amount as a result of PIK interest payments. The maturity date of the Notes is April 16, 2031. Pursuant to the Amended Note Purchase Agreement, the RTW Funds may not convert the Notes to the extent that such conversion would result in the RTW Funds beneficially owning more than 9.99% of the Issuer's common stock after giving effect to such conversion, unless converted pursuant to a Discretionary Conversion.

F1 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. ("Master Fund"), RTW Innovation Master Fund, Ltd. ("RTW Innovation") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F2 · ownership.nature: Held directly by Master Fund.

SEC source: 0001231919-25-000449 · form4-11072025_101100.xml · derivative · entry 5

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner

WONG RODERICK · CIK 0001493280 · Director · 10% owner

RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner

RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: Not disclosed

Underlying: Common Stock · 822,722 shares

Expires 2031-04-16

F5 · derivative.exercise_date: On November 5, 2025, pursuant to the terms of that certain Note Purchase Agreement dated April 14, 2024 as amended through April 15, 2025 (the "Amended Note Purchase Agreement"), the Reporting Persons delivered, and the Issuer accepted, conversion notices to convert $5.0 million aggregate principal amount of the convertible senior secured notes (the "Notes") held by the Reporting Persons at the floor conversion price of $3.35 per share. The remaining outstanding amount of the Notes remains convertible at a conversion price of $40.50 per share, as well as additional conversion prices in the discretion of the Issuer (the "Discretionary Conversions").

F6 · derivative.exercise_date: The Notes bear interest at an annual rate of 6.0%, which is payable quarterly in cash, or, at the Issuer's option, in kind for the first three years. The reported amount of shares does not give effect to any increase in principal amount as a result of PIK interest payments. The maturity date of the Notes is April 16, 2031. Pursuant to the Amended Note Purchase Agreement, the RTW Funds may not convert the Notes to the extent that such conversion would result in the RTW Funds beneficially owning more than 9.99% of the Issuer's common stock after giving effect to such conversion, unless converted pursuant to a Discretionary Conversion.

F1 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. ("Master Fund"), RTW Innovation Master Fund, Ltd. ("RTW Innovation") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F2 · ownership.nature: Held directly by Master Fund.

SEC source: 0001231919-25-000449 · form4-11072025_101100.xml · nonDerivative · entry 3

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner

WONG RODERICK · CIK 0001493280 · Director · 10% owner

RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner

RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 202,096

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 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. ("Master Fund"), RTW Innovation Master Fund, Ltd. ("RTW Innovation") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F4 · ownership.nature: Held by an Other RTW Fund.

SEC source: 0001231919-25-000449 · form4-11072025_101100.xml · nonDerivative · entry 2

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner

WONG RODERICK · CIK 0001493280 · Director · 10% owner

RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner

RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 1,659,241

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 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. ("Master Fund"), RTW Innovation Master Fund, Ltd. ("RTW Innovation") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F3 · ownership.nature: Held directly by RTW Innovation.

SEC source: 0001231919-25-000449 · form4-11072025_101100.xml · nonDerivative · entry 1

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner

WONG RODERICK · CIK 0001493280 · Director · 10% owner

RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner

RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 2,147,254

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 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. ("Master Fund"), RTW Innovation Master Fund, Ltd. ("RTW Innovation") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F2 · ownership.nature: Held directly by Master Fund.

SEC source: 0001231919-25-000232 · form4-09232025_080918.xml · derivative · entry 10

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner · See remarks

WONG RODERICK · CIK 0001493280 · Director · 10% owner · See Remarks

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 59,000 shares

Expires not disclosed

F4 · security: On September 19, 2025, the equity swap entered into by RTW Innovation Master Fund, Ltd previously reported on the Form 4 filed by the Reporting Persons on December 23, 2022 expired and settled in accordance with its terms. After the transaction reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

F4 · kind: On September 19, 2025, the equity swap entered into by RTW Innovation Master Fund, Ltd previously reported on the Form 4 filed by the Reporting Persons on December 23, 2022 expired and settled in accordance with its terms. After the transaction reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

F4 · price: On September 19, 2025, the equity swap entered into by RTW Innovation Master Fund, Ltd previously reported on the Form 4 filed by the Reporting Persons on December 23, 2022 expired and settled in accordance with its terms. After the transaction reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

F4 · derivative.exercise_date: On September 19, 2025, the equity swap entered into by RTW Innovation Master Fund, Ltd previously reported on the Form 4 filed by the Reporting Persons on December 23, 2022 expired and settled in accordance with its terms. After the transaction reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

F4 · derivative.expiration_date: On September 19, 2025, the equity swap entered into by RTW Innovation Master Fund, Ltd previously reported on the Form 4 filed by the Reporting Persons on December 23, 2022 expired and settled in accordance with its terms. After the transaction reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

F2 · ownership.nature: This Form 4 is being filed by each of (i) RTW Investments, LP (the "Adviser") with respect to the securities held by certain investment funds managed by the Adviser (the "RTW Funds") and (ii) Roderick Wong, M.D. ("Dr. Wong"), who serves as the Managing Partner and Chief Investment Officer of the Adviser and who is a director of the Issuer and Chairman of the Issuer's Board of Directors.

SEC source: 0001231919-25-000232 · form4-09232025_080918.xml · derivative · entry 9

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner · See remarks

WONG RODERICK · CIK 0001493280 · Director · 10% owner · See Remarks

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 41,000 shares

Expires not disclosed

F3 · security: On September 19, 2025, the equity swap entered into by RTW Innovation Master Fund, Ltd previously reported on the Form 4 filed by the Reporting Persons on December 22, 2022 expired and settled in accordance with its terms. After the transaction reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

F3 · kind: On September 19, 2025, the equity swap entered into by RTW Innovation Master Fund, Ltd previously reported on the Form 4 filed by the Reporting Persons on December 22, 2022 expired and settled in accordance with its terms. After the transaction reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

F3 · price: On September 19, 2025, the equity swap entered into by RTW Innovation Master Fund, Ltd previously reported on the Form 4 filed by the Reporting Persons on December 22, 2022 expired and settled in accordance with its terms. After the transaction reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

F3 · derivative.exercise_date: On September 19, 2025, the equity swap entered into by RTW Innovation Master Fund, Ltd previously reported on the Form 4 filed by the Reporting Persons on December 22, 2022 expired and settled in accordance with its terms. After the transaction reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

F3 · derivative.expiration_date: On September 19, 2025, the equity swap entered into by RTW Innovation Master Fund, Ltd previously reported on the Form 4 filed by the Reporting Persons on December 22, 2022 expired and settled in accordance with its terms. After the transaction reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

F2 · ownership.nature: This Form 4 is being filed by each of (i) RTW Investments, LP (the "Adviser") with respect to the securities held by certain investment funds managed by the Adviser (the "RTW Funds") and (ii) Roderick Wong, M.D. ("Dr. Wong"), who serves as the Managing Partner and Chief Investment Officer of the Adviser and who is a director of the Issuer and Chairman of the Issuer's Board of Directors.

SEC source: 0001231919-25-000232 · form4-09232025_080918.xml · derivative · entry 8

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner · See remarks

WONG RODERICK · CIK 0001493280 · Director · 10% owner · See Remarks

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,000,000 shares

Expires not disclosed

F1 · security: On September 19, 2025, the equity swap entered into by RTW Innovation Master Fund, Ltd. previously reported on the Forms 4 filed by the Reporting Persons on May 13, 2021 and April 5, 2023, expired and settled in accordance with its terms. After the transaction reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

F1 · kind: On September 19, 2025, the equity swap entered into by RTW Innovation Master Fund, Ltd. previously reported on the Forms 4 filed by the Reporting Persons on May 13, 2021 and April 5, 2023, expired and settled in accordance with its terms. After the transaction reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

F1 · price: On September 19, 2025, the equity swap entered into by RTW Innovation Master Fund, Ltd. previously reported on the Forms 4 filed by the Reporting Persons on May 13, 2021 and April 5, 2023, expired and settled in accordance with its terms. After the transaction reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

F1 · derivative.exercise_date: On September 19, 2025, the equity swap entered into by RTW Innovation Master Fund, Ltd. previously reported on the Forms 4 filed by the Reporting Persons on May 13, 2021 and April 5, 2023, expired and settled in accordance with its terms. After the transaction reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

F1 · derivative.expiration_date: On September 19, 2025, the equity swap entered into by RTW Innovation Master Fund, Ltd. previously reported on the Forms 4 filed by the Reporting Persons on May 13, 2021 and April 5, 2023, expired and settled in accordance with its terms. After the transaction reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

F2 · ownership.nature: This Form 4 is being filed by each of (i) RTW Investments, LP (the "Adviser") with respect to the securities held by certain investment funds managed by the Adviser (the "RTW Funds") and (ii) Roderick Wong, M.D. ("Dr. Wong"), who serves as the Managing Partner and Chief Investment Officer of the Adviser and who is a director of the Issuer and Chairman of the Issuer's Board of Directors.

SEC source: 0001231919-25-000232 · form4-09232025_080918.xml · nonDerivative · entry 6

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner · See remarks

WONG RODERICK · CIK 0001493280 · Director · 10% owner · See Remarks

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 18,188,457

F4 · kind: On September 19, 2025, the equity swap entered into by RTW Innovation Master Fund, Ltd previously reported on the Form 4 filed by the Reporting Persons on December 23, 2022 expired and settled in accordance with its terms. After the transaction reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

F2 · ownership.nature: This Form 4 is being filed by each of (i) RTW Investments, LP (the "Adviser") with respect to the securities held by certain investment funds managed by the Adviser (the "RTW Funds") and (ii) Roderick Wong, M.D. ("Dr. Wong"), who serves as the Managing Partner and Chief Investment Officer of the Adviser and who is a director of the Issuer and Chairman of the Issuer's Board of Directors.

SEC source: 0001231919-25-000232 · form4-09232025_080918.xml · nonDerivative · entry 5

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner · See remarks

WONG RODERICK · CIK 0001493280 · Director · 10% owner · See Remarks

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 18,247,457

F4 · kind: On September 19, 2025, the equity swap entered into by RTW Innovation Master Fund, Ltd previously reported on the Form 4 filed by the Reporting Persons on December 23, 2022 expired and settled in accordance with its terms. After the transaction reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

F2 · ownership.nature: This Form 4 is being filed by each of (i) RTW Investments, LP (the "Adviser") with respect to the securities held by certain investment funds managed by the Adviser (the "RTW Funds") and (ii) Roderick Wong, M.D. ("Dr. Wong"), who serves as the Managing Partner and Chief Investment Officer of the Adviser and who is a director of the Issuer and Chairman of the Issuer's Board of Directors.

SEC source: 0001231919-25-000232 · form4-09232025_080918.xml · nonDerivative · entry 4

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner · See remarks

WONG RODERICK · CIK 0001493280 · Director · 10% owner · See Remarks

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 18,188,457

F3 · kind: On September 19, 2025, the equity swap entered into by RTW Innovation Master Fund, Ltd previously reported on the Form 4 filed by the Reporting Persons on December 22, 2022 expired and settled in accordance with its terms. After the transaction reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

F2 · ownership.nature: This Form 4 is being filed by each of (i) RTW Investments, LP (the "Adviser") with respect to the securities held by certain investment funds managed by the Adviser (the "RTW Funds") and (ii) Roderick Wong, M.D. ("Dr. Wong"), who serves as the Managing Partner and Chief Investment Officer of the Adviser and who is a director of the Issuer and Chairman of the Issuer's Board of Directors.

SEC source: 0001231919-25-000232 · form4-09232025_080918.xml · nonDerivative · entry 3

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner · See remarks

WONG RODERICK · CIK 0001493280 · Director · 10% owner · See Remarks

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 18,229,457

F3 · kind: On September 19, 2025, the equity swap entered into by RTW Innovation Master Fund, Ltd previously reported on the Form 4 filed by the Reporting Persons on December 22, 2022 expired and settled in accordance with its terms. After the transaction reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

F2 · ownership.nature: This Form 4 is being filed by each of (i) RTW Investments, LP (the "Adviser") with respect to the securities held by certain investment funds managed by the Adviser (the "RTW Funds") and (ii) Roderick Wong, M.D. ("Dr. Wong"), who serves as the Managing Partner and Chief Investment Officer of the Adviser and who is a director of the Issuer and Chairman of the Issuer's Board of Directors.

SEC source: 0001231919-25-000232 · form4-09232025_080918.xml · nonDerivative · entry 2

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner · See remarks

WONG RODERICK · CIK 0001493280 · Director · 10% owner · See Remarks

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 18,188,457

F1 · kind: On September 19, 2025, the equity swap entered into by RTW Innovation Master Fund, Ltd. previously reported on the Forms 4 filed by the Reporting Persons on May 13, 2021 and April 5, 2023, expired and settled in accordance with its terms. After the transaction reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

F2 · ownership.nature: This Form 4 is being filed by each of (i) RTW Investments, LP (the "Adviser") with respect to the securities held by certain investment funds managed by the Adviser (the "RTW Funds") and (ii) Roderick Wong, M.D. ("Dr. Wong"), who serves as the Managing Partner and Chief Investment Officer of the Adviser and who is a director of the Issuer and Chairman of the Issuer's Board of Directors.

SEC source: 0001231919-25-000232 · form4-09232025_080918.xml · nonDerivative · entry 1

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner · See remarks

WONG RODERICK · CIK 0001493280 · Director · 10% owner · See Remarks

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 19,188,457

F1 · kind: On September 19, 2025, the equity swap entered into by RTW Innovation Master Fund, Ltd. previously reported on the Forms 4 filed by the Reporting Persons on May 13, 2021 and April 5, 2023, expired and settled in accordance with its terms. After the transaction reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

F2 · ownership.nature: This Form 4 is being filed by each of (i) RTW Investments, LP (the "Adviser") with respect to the securities held by certain investment funds managed by the Adviser (the "RTW Funds") and (ii) Roderick Wong, M.D. ("Dr. Wong"), who serves as the Managing Partner and Chief Investment Officer of the Adviser and who is a director of the Issuer and Chairman of the Issuer's Board of Directors.

SEC source: 0001415889-25-021173 · form4-08062025_080857.xml · derivative · entry 1

RTW INVESTMENTS, LP · CIK 0001493215 · 10% owner

WONG RODERICK · CIK 0001493280 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 3,636,363

Underlying: Common Stock · 3,636,363 shares

Expires not disclosed

F1 · derivative.exercise_date: The Pre-Funded Warrants have no expiration date and are exercisable immediately. Notwithstanding the foregoing, the Reporting Persons shall not be entitled to exercise the Pre-Funded Warrants to the extent that it would cause the aggregate number of shares of Common Stock beneficially owned by the Reporting Persons, together with their Attribution Parties (as defined in the Pre-Funded Warrants), to exceed 9.99% of the total number of issued and outstanding shares of Common Stock of the Issuer following such exercise.

F1 · derivative.expiration_date: The Pre-Funded Warrants have no expiration date and are exercisable immediately. Notwithstanding the foregoing, the Reporting Persons shall not be entitled to exercise the Pre-Funded Warrants to the extent that it would cause the aggregate number of shares of Common Stock beneficially owned by the Reporting Persons, together with their Attribution Parties (as defined in the Pre-Funded Warrants), to exceed 9.99% of the total number of issued and outstanding shares of Common Stock of the Issuer following such exercise.

F2 · ownership.nature: Held by certain affiliated funds managed by RTW Investments, LP ("RTW"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of RTW. The Reporting Persons disclaim beneficial ownership of the reported securities for purposes of Section 16 under the Securities Exchange Act of 1934, as amended, except to the extent of their pecuniary interest therein.

SEC source: 0001062993-25-008272 · form4.xml · nonDerivative · entry 1

RTW INVESTMENTS, LP · CIK 0001493215 · 10% owner

WONG RODERICK · CIK 0001493280 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Please see footnote

Disclosed balance after: 8,306,063

F1 · ownership.nature: Held by certain affiliated funds managed by RTW Investments, LP ("RTW"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of RTW. The reporting persons disclaim beneficial ownership of the reported securities for purposes of Section 16 under the Securities Exchange Act of 1934, as amended, except to the extent of their pecuniary interest therein.

SEC source: 0001062993-25-008205 · form4.xml · nonDerivative · entry 1

RTW INVESTMENTS, LP · CIK 0001493215 · 10% owner

WONG RODERICK · CIK 0001493280 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Please see footnote

Disclosed balance after: 8,256,163

F1 · ownership.nature: Held by certain affiliated funds managed by RTW Investments, LP ("RTW"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of RTW. The reporting persons disclaim beneficial ownership of the reported securities for purposes of Section 16 under the Securities Exchange Act of 1934, as amended, except to the extent of their pecuniary interest therein.

SEC source: 0001062993-25-007660 · form4.xml · derivative · entry 6

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner

WONG RODERICK · CIK 0001493280 · Director · 10% owner

RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner

RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Please see footnotes

Disclosed balance after: Not disclosed

Underlying: Common Stock · 1,492,539 shares

Expires 2031-04-16

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

F5 · derivative.exercise_date: On April 15, 2025, the conversion price of $5.0 million aggregate principal amount of the convertible senior secured notes held by the Reporting Persons (the "Notes") was amended from $40.50 per share to $3.35 per share. The remaining outstanding amount of the Notes remain convertible at a conversion price $40.50 per share, as well as additional conversion prices in the discretion of the Issuer (the "Discretionary Conversions").

F6 · derivative.exercise_date: The Notes bear interest at an annual rate of 6.0%, which is payable quarterly in cash, or, at the Issuer's option, in kind for the first three years. The reported amount of shares does not give effect to any increase in principal amount as a result of PIK interest payments. The maturity date of the Notes is April 16, 2031. Pursuant to the Note Purchase Agreement, as amended, the RTW Funds may not convert the Notes to the extent that such conversion would result in the RTW Funds beneficially owning more than 9.99% of the Company's common stock after giving effect to such conversion, unless converted pursuant to a Discretionary Conversion.

F1 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported on this Form 3, including RTW Master Fund, Ltd. ("Master Fund") and RTW Innovation Master Fund, Ltd. ("RTW Innovation," and, together with Master Fund and other funds or accounts managed by the Adviser, the "RTW Funds"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F4 · ownership.nature: Held by RTW Funds.

SEC source: 0001062993-25-007660 · form4.xml · derivative · entry 5

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner

WONG RODERICK · CIK 0001493280 · Director · 10% owner

RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner

RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Please see footnotes

Disclosed balance after: Not disclosed

Underlying: Common Stock · 1,492,539 shares

Expires 2031-04-16

F5 · derivative.exercise_date: On April 15, 2025, the conversion price of $5.0 million aggregate principal amount of the convertible senior secured notes held by the Reporting Persons (the "Notes") was amended from $40.50 per share to $3.35 per share. The remaining outstanding amount of the Notes remain convertible at a conversion price $40.50 per share, as well as additional conversion prices in the discretion of the Issuer (the "Discretionary Conversions").

F6 · derivative.exercise_date: The Notes bear interest at an annual rate of 6.0%, which is payable quarterly in cash, or, at the Issuer's option, in kind for the first three years. The reported amount of shares does not give effect to any increase in principal amount as a result of PIK interest payments. The maturity date of the Notes is April 16, 2031. Pursuant to the Note Purchase Agreement, as amended, the RTW Funds may not convert the Notes to the extent that such conversion would result in the RTW Funds beneficially owning more than 9.99% of the Company's common stock after giving effect to such conversion, unless converted pursuant to a Discretionary Conversion.

F1 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported on this Form 3, including RTW Master Fund, Ltd. ("Master Fund") and RTW Innovation Master Fund, Ltd. ("RTW Innovation," and, together with Master Fund and other funds or accounts managed by the Adviser, the "RTW Funds"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F4 · ownership.nature: Held by RTW Funds.

SEC source: 0001062993-25-007660 · form4.xml · nonDerivative · entry 3

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner

WONG RODERICK · CIK 0001493280 · Director · 10% owner

RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner

RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Please see footnotes

Disclosed balance after: 164,233

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 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported on this Form 3, including RTW Master Fund, Ltd. ("Master Fund") and RTW Innovation Master Fund, Ltd. ("RTW Innovation," and, together with Master Fund and other funds or accounts managed by the Adviser, the "RTW Funds"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F4 · ownership.nature: Held by RTW Funds.

SEC source: 0001062993-25-007660 · form4.xml · nonDerivative · entry 2

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner

WONG RODERICK · CIK 0001493280 · Director · 10% owner

RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner

RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Please see footnotes

Disclosed balance after: 1,027,287

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 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported on this Form 3, including RTW Master Fund, Ltd. ("Master Fund") and RTW Innovation Master Fund, Ltd. ("RTW Innovation," and, together with Master Fund and other funds or accounts managed by the Adviser, the "RTW Funds"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F3 · ownership.nature: Held by RTW Innovation.

SEC source: 0001062993-25-007660 · form4.xml · nonDerivative · entry 1

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner

WONG RODERICK · CIK 0001493280 · Director · 10% owner

RTW MASTER FUND, LTD. · CIK 0001493219 · Director · 10% owner

RTW Innovation Master Fund Ltd. · CIK 0001776733 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · Please see footnotes

Disclosed balance after: 1,324,532

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 · ownership.nature: RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported on this Form 3, including RTW Master Fund, Ltd. ("Master Fund") and RTW Innovation Master Fund, Ltd. ("RTW Innovation," and, together with Master Fund and other funds or accounts managed by the Adviser, the "RTW Funds"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

F2 · ownership.nature: Held by Master Fund.

SEC source: 0001062993-24-020690 · form4.xml · derivative · entry 1

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner · See remarks

WONG RODERICK · CIK 0001493280 · Director · 10% owner · See remarks

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 3,526,955

Underlying: Common Stock · 400,000 shares

Expires not disclosed

F1 · shares: The Pre-Funded Warrant was purchased from the Issuer in a private placement, which transaction is exempt from Section 16(b) in accordance with Rule 16b-3(d)(1) promulgated under the Securities Exchange Act of 1934, as amended.

F2 · derivative.exercise_date: Subject to the terms and conditions set forth in the Pre-Funded Warrant, the holder thereof may, at any time and from time to time on or after December 12, 2024, exercise the Pre-Funded Warrant until exercised in full. The Pre-Funded Warrant reported herein contains an exercise limitation prohibiting the holder from exercising the Pre-Funded Warrant until such time as the holder, together with the Reporting Persons and certain other related parties, would not beneficially own after any such exercise more than 9.99% of the then issued and outstanding Common Stock (the "Blocker"). Due to the Blocker, the Pre-Funded Warrant beneficially owned by the Reporting Persons is not presently exercisable.

F2 · derivative.expiration_date: Subject to the terms and conditions set forth in the Pre-Funded Warrant, the holder thereof may, at any time and from time to time on or after December 12, 2024, exercise the Pre-Funded Warrant until exercised in full. The Pre-Funded Warrant reported herein contains an exercise limitation prohibiting the holder from exercising the Pre-Funded Warrant until such time as the holder, together with the Reporting Persons and certain other related parties, would not beneficially own after any such exercise more than 9.99% of the then issued and outstanding Common Stock (the "Blocker"). Due to the Blocker, the Pre-Funded Warrant beneficially owned by the Reporting Persons is not presently exercisable.

F3 · ownership.nature: This Form 4 is being filed by each of (i) RTW Investments, LP (the "Adviser") with respect to the securities held by certain investment funds managed by the Adviser (the "RTW Funds") and (ii) Roderick Wong, M.D. ("Dr. Wong"), who serves as the Managing Partner and Chief Investment Officer of the Adviser and who is a director of the Issuer and Chairman of the Issuer's Board of Directors.

SEC source: 0000902664-24-000237 · ownership.xml · nonDerivative · entry 1

RTW INVESTMENTS, LP · CIK 0001493215 · 10% owner

WONG RODERICK · CIK 0001493280 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 5,175,832

F1 · kind: The RTW Funds (as defined below) exchanged 1,842,499 shares of Common Stock for 1,842,499 pre-funded warrants pursuant to an Exchange Agreement, dated as of January 12, 2024, by and among the Issuer and the RTW Funds. Each pre-funded warrant represents the right to acquire one share of Common Stock for an exercise price of $0.001 per share. The pre-funded warrants are subject to a 9.99% beneficial ownership limitation and do not have an expiration date.

F2 · shares: The shares of Common Stock underlying the pre-funded warrants reported on this Form 4 are subject to a lock-up agreement among the RTW Funds and J.P. Morgan Securities LLC, Jefferies LLC and Cowen and Company, LLC, dated October 30, 2023, pursuant to which the shares of common stock underlying the pre-funded warrants reported herein cannot be sold until May 11, 2024.

F1 · price: The RTW Funds (as defined below) exchanged 1,842,499 shares of Common Stock for 1,842,499 pre-funded warrants pursuant to an Exchange Agreement, dated as of January 12, 2024, by and among the Issuer and the RTW Funds. Each pre-funded warrant represents the right to acquire one share of Common Stock for an exercise price of $0.001 per share. The pre-funded warrants are subject to a 9.99% beneficial ownership limitation and do not have an expiration date.

F3 · ownership.nature: This Form 4 is being filed by each of (i) RTW Investments, LP (the "Adviser") with respect to the securities held by certain investment funds managed by the Adviser (the "RTW Funds") and (ii) Roderick Wong, M.D., who serves as the Managing Partner and Chief Investment Officer of the Adviser.

SEC source: 0000902664-23-004827 · ownership.xml · derivative · entry 1

RTW INVESTMENTS, LP · CIK 0001493215 · Director · 10% owner · See Remarks

WONG RODERICK · CIK 0001493280 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 3,126,955

Underlying: Common Stock · 3,126,955 shares

Expires not disclosed

F1 · derivative.exercise_date: Subject to the terms and conditions set forth in the Pre-funded Warrant, the holder thereof may, at any time and from time to time on or after September 15, 2023, exercise the Pre-funded Warrant until it has been exercised in full. The Pre-funded Warrants reported herein contain an exercise limitation prohibiting the holder from exercising the Pre-Funded Warrants until such time as the holder, together with the Reporting Persons and certain other related parties, would not beneficially own after any such exercise more than 9.99% of the then issued and outstanding Common Stock (the "Blocker"). Due to the Blocker, the Pre-funded Warrants beneficially owned by the Reporting Persons are not presently exercisable.

F1 · derivative.expiration_date: Subject to the terms and conditions set forth in the Pre-funded Warrant, the holder thereof may, at any time and from time to time on or after September 15, 2023, exercise the Pre-funded Warrant until it has been exercised in full. The Pre-funded Warrants reported herein contain an exercise limitation prohibiting the holder from exercising the Pre-Funded Warrants until such time as the holder, together with the Reporting Persons and certain other related parties, would not beneficially own after any such exercise more than 9.99% of the then issued and outstanding Common Stock (the "Blocker"). Due to the Blocker, the Pre-funded Warrants beneficially owned by the Reporting Persons are not presently exercisable.

F2 · ownership.nature: This Form 4 is being filed by each of (i) RTW Investments, LP (the "Adviser") with respect to the securities held by certain investment funds managed by the Adviser (the "RTW Funds") and (ii) Roderick Wong, M.D. ("Dr. Wong"), who serves as the Managing Partner and Chief Investment Officer of the Adviser and who is a director of the Issuer and Chairman of the Issuer's Board of Directors.