NGNE · Neurogene Inc.

The transactions reported on this Form 4 were effected pursuant to a 10b5-1 plan adopted by the reporting person on August 18, 2025. Shares sold were held jointly by the reporting person and her spouse, David Cvijic.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.00 to $36.455, inclusive. The reporting person undertakes to provide the Company, any securityholder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Includes (a) 10,635 restricted stock units granted on March 13, 2024 that will vest on March 13, 2027; (b) 13,533 restricted stock units granted on March 26, 2025, which will vest annually in equal installments on March 26, 2027 and March 26, 2028; and (c) 22,000 restricted stock units granted on February 20, 2026, which will vest annually in equal installments on February 20, 2027, February 20, 2028 and February 20, 2029. Following completion of all sales reported on this Form 4, the reporting person no longer holds any shares jointly with her spouse.

The transactions reported on this Form 4 were effected pursuant to a 10b5-1 plan adopted by the reporting person on August 18, 2025. Shares sold were held jointly by the reporting person and her spouse, David Cvijic.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.00 to $36.035, inclusive. The reporting person undertakes to provide Neurogene Inc. (the "Company"), any securityholder of the Company, or the staff of the Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Includes (a) 10,635 restricted stock units granted on March 13, 2024 that will vest on March 13, 2027; (b) 13,533 restricted stock units granted on March 26, 2025, which will vest annually in equal installments on March 26, 2027 and March 26, 2028; and (c) 22,000 restricted stock units granted on February 20, 2026, which will vest annually in equal installments on February 20, 2027, February 20, 2028 and February 20, 2029. Following completion of all sales reported on this Form 4, the reporting person no longer holds any shares jointly with her spouse.

The transactions reported on this Form 4 were effected pursuant to a 10b5-1 plan adopted by the reporting person on August 18, 2025. Shares sold were held jointly by the reporting person and her spouse, David Cvijic.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.11 to $35.255, inclusive. The reporting person undertakes to provide the Company, any securityholder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote

Includes (a) 10,635 restricted stock units granted on March 13, 2024 that will vest on March 13, 2027; (b) 13,533 restricted stock units granted on March 26, 2025, which will vest annually in equal installments on March 26, 2027 and March 26, 2028; and (c) 22,000 restricted stock units granted on February 20, 2026, which will vest annually in equal installments on February 20, 2027, February 20, 2028 and February 20, 2029. Of the remaining shares, following completion of all sales reported pursuant to this Form 4, 4,800 are held jointly by the reporting person and her spouse, David Cvijic.

The transactions reported on this Form 4 were effected pursuant to a 10b5-1 plan adopted by the reporting person on August 18, 2025. Shares sold were held jointly by the reporting person and her spouse, David Cvijic.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $34.05 to $34.99, inclusive. The reporting person undertakes to provide the Company, any securityholder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote

Includes (a) 10,635 restricted stock units granted on March 13, 2024 that will vest on March 13, 2027; (b) 13,533 restricted stock units granted on March 26, 2025, which will vest annually in equal installments on March 26, 2027 and March 26, 2028; and (c) 22,000 restricted stock units granted on February 20, 2026, which will vest annually in equal installments on February 20, 2027, February 20, 2028 and February 20, 2029. Of the remaining shares, following completion of all sales reported pursuant to this Form 4, 4,800 are held jointly by the reporting person and her spouse, David Cvijic.

The transactions reported on this Form 4 were effected pursuant to a 10b5-1 plan adopted by the reporting person on August 18, 2025. Shares sold were held jointly by the reporting person and her spouse, David Cvijic.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $34.005 to $34.095, inclusive. The reporting person undertakes to provide Neurogene Inc. (the "Company"), any securityholder of the Company, or the staff of the Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Includes (a) 10,635 restricted stock units granted on March 13, 2024 that will vest on March 13, 2027; (b) 13,533 restricted stock units granted on March 26, 2025, which will vest annually in equal installments on March 26, 2027 and March 26, 2028; and (c) 22,000 restricted stock units granted on February 20, 2026, which will vest annually in equal installments on February 20, 2027, February 20, 2028 and February 20, 2029. Of the remaining shares, following completion of all sales reported pursuant to this Form 4, 4,800 are held jointly by the reporting person and her spouse, David Cvijic.

The transactions reported on this Form 4 were effected pursuant to a 10b5-1 plan adopted by the reporting person on August 18, 2025. Shares sold were held jointly by the reporting person and her spouse, David Cvijic.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.02 to $32.695, inclusive. The reporting person undertakes to provide the Company, any securityholder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Includes (a) 10,635 restricted stock units granted on March 13, 2024 that will vest on March 13, 2027; (b) 13,533 restricted stock units granted on March 26, 2025, which will vest annually in equal installments on March 26, 2027 and March 26, 2028; and (c) 22,000 restricted stock units granted on February 20, 2026, which will vest annually in equal installments on February 20, 2027, February 20, 2028 and February 20, 2029. Of the remaining shares, 9,600 are held jointly by the reporting person and her spouse, David Cvijic.

The transactions reported on this Form 4 were effected pursuant to a 10b5-1 plan adopted by the reporting person on August 18, 2025. Shares sold were held jointly by the reporting person and her spouse, David Cvijic.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.00 to $30.31, inclusive. The reporting person undertakes to provide Neurogene Inc. (the "Company"), any securityholder of the Company, or the staff of the Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Includes (a) 10,635 restricted stock units granted on March 13, 2024 that will vest on March 13, 2027; (b) 13,533 restricted stock units granted on March 26, 2025, which will vest annually in equal installments on March 26, 2027 and March 26, 2028; and (c) 22,000 restricted stock units granted on February 20, 2026, which will vest annually in equal installments on February 20, 2027, February 20, 2028 and February 20, 2029. Of the remaining shares, 9,600 are held jointly by the reporting person and her spouse, David Cvijic.

This option represents the right to purchase 120,000 shares of the Issuer's common stock, one quarter of which will vest on April 20, 2027 with the remaining three quarters vesting on the 20th of each month in equal monthly installments through April 20, 2030, subject to the Reporting Person's continued provision of service to the Issuer on each vesting date.

On March 26, 2026, a Restricted Stock Unit ("RSU") held by the Reporting Person vested in part. The shares issuable on vesting of the RSU are reported as shares held by the Reporting Person. The award agreement for the RSU provides that the Registrant shall sell a number of shares necessary to cover the Reporting Person's tax withholding responsibility created by the vesting event, with no election made by the Reporting Person. The sales reported on this Form 4 relate exclusively to this mandatory sale upon vesting of the RSU.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.68 to $22.19, inclusive. The reporting person undertakes to provide Neurogene Inc. (the "Company"), any securityholder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Consist of (a) 5,600 restricted stock units, which vest annually in equal installments on March 26, 2027 and March 26, 2028; and (b) 4,900 restricted stock units which vest annually in equal installments on February 20, 2027, February 20, 2028 and February 20, 2029, in each case subject to the Reporting Person's continued provision of services to the Issuer on each vesting date.

On March 26, 2026, a Restricted Stock Unit ("RSU") held by the Reporting Person vested in part. The shares issuable on vesting of the RSU are reported as shares held by the Reporting Person. The award agreement for the RSU provides that the Registrant shall sell a number of shares necessary to cover the Reporting Person's tax withholding responsibility created by the vesting event, with no election made by the Reporting Person. The sales reported on this Form 4 relate exclusively to this mandatory sale upon vesting of the RSU.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.10 to $21.91, inclusive. The reporting person undertakes to provide Neurogene Inc. (the "Company"), any securityholder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Includes (a) 10,635 restricted stock units granted on March 13, 2024 that will vest on March 13, 2027; (b) 13,533 restricted stock units granted on March 26, 2025, which will vest annually in equal installments on March 26, 2027 and March 26, 2028; and (c) 22,000 restricted stock units granted on February 20, 2026, which will vest annually in equal installments on February 20, 2027, February 20, 2028 and February 20, 2029. Of the remaining shares, 19,200 are held jointly by the reporting person and her spouse, David Cvijic.

On March 26, 2026, a Restricted Stock Unit ("RSU") held by the Reporting Person vested in part. The shares issuable on vesting of the RSU are reported as shares held by the Reporting Person. The award agreement for the RSU provides that the Registrant shall sell a number of shares necessary to cover the Reporting Person's tax withholding responsibility created by the vesting event, with no election made by the Reporting Person. The sales reported on this Form 4 relate exclusively to this mandatory sale upon vesting of the RSU.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.67to $22.50, inclusive. The reporting person undertakes to provide Neurogene Inc. (the "Company"), any securityholder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Includes (a) 15,933 restricted stock units that vest annually in equal installments on March 23, 2027 and March 23, 2028; and (b) 25,900 restricted stock units that vest annually in equal installments on February 20, 2027, February 20, 2028 and February 20, 2029.

The transactions reported on this Form 4 were effected pursuant to a 10b5-1 plan adopted by the reporting person on February 6, 2025.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.94 to $20.93, inclusive. The reporting person undertakes to provide Neurogene Inc. (the "Company"), any securityholder of the Company, or the staff of the Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Includes (a) 6,797 restricted stock units granted on March 13, 2025, which will vest on March 13, 2027; (b) 7,200 restricted stock units granted on March 23, 2025, which will vest annually in equal installments on March 23, 2026, March 23, 2027 and March 23, 2028 and (c) 16,500 restricted stock units granted on February 20, 2026, which will vest annually in equal installments on February 20, 2027, February 20, 2028 and February 20, 2029, in each case subject to the Reporting Person's continued provision of services to the Issuer on each vesting date.

The transactions reported on this Form 4 were effected pursuant to a 10b5-1 plan adopted by the reporting person on February 6, 2025.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.97 to $21.96, inclusive. The reporting person undertakes to provide the Company, any securityholder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Includes (a) 6,797 restricted stock units granted on March 13, 2025, which will vest on March 13, 2027; (b) 7,200 restricted stock units granted on March 23, 2025, which will vest annually in equal installments on March 23, 2026, March 23, 2027 and March 23, 2028 and (c) 16,500 restricted stock units granted on February 20, 2026, which will vest annually in equal installments on February 20, 2027, February 20, 2028 and February 20, 2029, in each case subject to the Reporting Person's continued provision of services to the Issuer on each vesting date.

On March 12, 2025, a Restricted Stock Unit (RSU) held by the Reporting Person vested in part. The shares issuable on vesting of the RSU are reported as shares held by the Reporting Person. The award agreement for the RSU provides that the Registrant shall sell a number of shares necessary to cover the Reporting Person's tax withholding responsibility created by the vesting event, with no election made by the Reporting Person. The sales reported on this Form 4 relate exclusively to this mandatory sale upon vesting of the RSU.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.92 to $20.87, inclusive. The reporting person undertakes to provide Neurogene Inc. (the "Company"), any securityholder of the Company, or the staff of the Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Includes (a) 10,635 restricted stock units granted on March 13, 2024 that will vest on March 13, 2027; (b) 20,300 restricted stock units granted on March 26, 2025, which will vest annually in equal installments on March 26, 2026, March 26, 2027 and March 26, 2028; and (c) 22,000 restricted stock units granted on February 20, 2026, which will vest annually in equal installments on February 20, 2027, February 20, 2028 and February 20, 2029. Of the remaining shares, 19,200 are held jointly by the reporting person and her spouse, David Cvijic.

On March 12, 2025, a Restricted Stock Unit (RSU) held by the Reporting Person vested in part. The shares issuable on vesting of the RSU are reported as shares held by the Reporting Person. The award agreement for the RSU provides that the Registrant shall sell a number of shares necessary to cover the Reporting Person's tax withholding responsibility created by the vesting event, with no election made by the Reporting Person. The sales reported on this Form 4 relate exclusively to this mandatory sale upon vesting of the RSU.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.92 to $22.075, inclusive. The reporting person undertakes to provide the Company, any securityholder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Includes (a) 10,635 restricted stock units granted on March 13, 2024 that will vest on March 13, 2027; (b) 20,300 restricted stock units granted on March 26, 2025, which will vest annually in equal installments on March 26, 2026, March 26, 2027 and March 26, 2028; and (c) 22,000 restricted stock units granted on February 20, 2026, which will vest annually in equal installments on February 20, 2027, February 20, 2028 and February 20, 2029. Of the remaining shares, 19,200 are held jointly by the reporting person and her spouse, David Cvijic.

The transactions reported on this Form 4 were effected pursuant to a 10b5-1 plan adopted by the reporting person on February 6, 2025.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.97 to $22.16, inclsuive. The reporting person undertakes to provide Neurogene Inc. the Company, any securityholder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Includes (a) 6,797 restricted stock units granted on March 13, 2025, which will vest on March 13, 2027; (b) 7,200 restricted stock units granted on March 23, 2025, which will vest annually in equal installments on March 23, 2026, March 23, 2027 and March 23, 2028 and (c) 16,500 restricted stock units granted on February 20, 2026, which will vest annually in equal installments on February 20, 2027, February 20, 2028 and February 20, 2029, in each case subject to the Reporting Person's continued provision of services to the Issuer on each vesting date.

On March 12, 2025, a Restricted Stock Unit (RSU) held by the Reporting Person vested in part. The shares issuable on vesting of the RSU are reported as shares held by the Reporting Person. The award agreement for the RSU provides that the Registrant shall sell a number of shares necessary to cover the Reporting Person's tax withholding responsibility created by the vesting event, with no election made by the Reporting Person. The sales reported on this Form 4 relate exclusively to this mandatory sale upon vesting of the RSU.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.92 to $21.91, inclusive. The reporting person undertakes to provide the Company, any securityholder of the Company, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Includes (a) 10,635 restricted stock units granted on March 13, 2024 that will vest on March 13, 2027; (b) 20,300 restricted stock units granted on March 26, 2025, which will vest annually in equal installments on March 26, 2026, March 26, 2027 and March 26, 2028; and (c) 22,000 restricted stock units granted on February 20, 2026, which will vest annually in equal installments on February 20, 2027, February 20, 2028 and February 20, 2029. Of the remaining shares, 19,200 are held jointly by the reporting person and her spouse, David Cvijic.

The transactions reported on this Form 4 were effected pursuant to a 10b5-1 plan adopted by the reporting person on August 18, 2025. Shares sold were held jointly by the reporting person and her spouse, David Cvijic.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.00 to $25.325. The reporting person undertakes to provide Neurogene Inc. (the "Company"), any securityholder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Includes (a) 21,269 restricted stock units remaining from a grant of 31,900 restricted stock units granted on March 13, 2024 that vest annually in equal installments on March 13, 2025, March 13, 2026 and March 13, 2027; (b) 20,300 restricted stock units granted on March 26, 2025, which will vest annually in equal installments on March 26, 2026, March 26, 2027 and March 26, 2028; and (c) 22,000 restricted stock units granted on February 20, 2026, which will vest annually in equal installments on February 20, 2027, February 20, 2028 and February 20, 2029. Of the remaining shares, 19,200 are held jointly by the reporting person and her spouse, David Cvijic.

The option vests as to 1/12 of the total shares monthly beginning March 20, 2026 until the option is fully vested on February 20, 2027, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Consist of 22,000 restricted stock units, which will vest in three equal annual installments beginning on the first anniversary of the grant date, subject to the Reporting Person's continued provision of services to the Issuer on each vesting date.

Includes (a) 21,269 restricted stock units remaining from a grant of 31,900 restricted stock units granted on March 13, 2024 that vest annually in equal installments on March 13, 2025, March 13, 2026 and March 13, 2027; (b) 20,300 restricted stock units granted on March 26, 2025, which will vest annually in equal installments on March 26, 2026, March 26, 2027 and March 26, 2028; and (c) 22,000 restricted stock units granted on February 20, 2026, which will vest annually in equal installments on February 20, 2027, February 20, 2028 and February 20, 2029. Of the remaining shares, 24,000 are held jointly by the reporting person and her spouse, David Cvijic.

The option vests as to 1/12 of the total shares monthly beginning March 20, 2026 until the option is fully vested on February 20, 2027, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

This option represents the right to purchase 29,600 shares of the Issuer's common stock, one quarter of which will vest on the first anniversary of the grant date with the remaining three quarters vesting in equal monthly installments through the fourth anniversary of the grant date, subject to the Reporting Person's continued provision of service to the Issuer on each vesting date.

The option vests as to 1/12 of the total shares monthly beginning March 20, 2026 until the option is fully vested on February 20, 2027, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

The option vests as to 1/12 of the total shares monthly beginning March 20, 2026 until the option is fully vested on February 20, 2027, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Consist of 16,500 restricted stock units, which will vest in three equal annual installments beginning on the first anniversary of the grant date, subject to the Reporting Person's continued provision of services to the Issuer on each vesting date.

Consist of (a) 13,594 restricted stock units remaining from a grant of 20,391 restricted stock units granted on March 13, 2024, which vests annually in equal installments on March 13, 2025, March 13, 2026 and March 13, 2027; (b) 7,200 restricted stock units granted on March 26, 2025, which will vest annually in equal installments on March 26, 2026, March 26, 2027 and March 26, 2028; and (c) 16,500 restricted stock units granted on February 20, 2026, which will vest annually in equal installments on February 20, 2027, February 20, 2028 and February 20, 2029, in each case subject to the Reporting Person's continued provision of services to the Issuer on each vesting date.

The option vests as to 1/12 of the total shares monthly beginning March 20, 2026 until the option is fully vested on February 20, 2027, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

Consist of 4,900 restricted stock units, which will vest in three equal annual installments beginning on the first anniversary of the grant date, subject to the Reporting Person's continued provision of services to the Issuer on each vesting date.

Consist of (a) 8,400 restricted stock units granted on March 26, 2025, which will vest annually in equal installments on March 26, 2026, March 26, 2027 and March 26, 2028; and (b) 4,900 restricted stock units granted on February 20, 2026, which will vest annually in equal installments on February 20, 2027, February 20, 2028 and February 20, 2029, in each case subject to the Reporting Person's continued provision of services to the Issuer on each vesting date.

Consist of 25,900 restricted stock units, which will vest in three equal annual installments beginning on the first anniversary of the grant date, subject to the Reporting Person's continued provision of services to the Issuer on each vesting date.

Includes (a) 23,900 restricted stock units granted on March 26, 2025, which will vest annually in equal installments on March 26, 2026, March 26, 2027 and March 26, 2028; and (b) 25,900 restricted stock units granted on February 20, 2029, which will vest annually in equal installments on February 20, 2027, February 20, 2028 and February 20, 2029. Due to an administrative error, the amount reported in Column 5 on the Reporting Person's Form 4 filed on March 28, 2025 was understated by the 47,500 shares reported as purchased by the Reporting Person on the Reporting Person's Form 4 filed on November 25, 2024. This Form 4 reflects the correct amount of common stock beneficially owned by the Reporting Person.

This option represents the right to purchase 131,900 shares of the Issuer's common stock, one quarter of which will vest on the first anniversary of the grant date with the remaining three quarters vesting in equal monthly installments through the fourth anniversary of the grant date, subject to the Reporting Person's continued provision of service to the Issuer on each vesting date.

This option represents the right to purchase 155,100 shares of the Issuer's common stock, one quarter of which will vest on the first anniversary of the grant date with the remaining three quarters vesting in equal monthly installments through the fourth anniversary of the grant date, subject to the Reporting Person's continued provision of service to the Issuer on each vesting date.

The option vests as to 1/12 of the total shares monthly beginning July 12, 2025 until the option is fully vested on June 12, 2026, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

This option is fully vested.

The option vests as to 1/12 of the total shares monthly beginning July 12, 2025 until the option is fully vested on June 12, 2026, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

The option vests as to 1/12 of the total shares monthly beginning July 12, 2025 until the option is fully vested on June 12, 2026, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

The option vests as to 1/12 of the total shares monthly beginning July 12, 2025 until the option is fully vested on June 12, 2026, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

The option vests as to 1/12 of the total shares monthly beginning July 12, 2025 until the option is fully vested on June 12, 2026, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

The transactions reported on this Form 4 were effected pursuant to a 10b5-1 plan adopted by the reporting person on February 6, 2025.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $14.78 to $15.75. The reporting person undertakes to provide Neurogene Inc. (the "Company"), any securityholder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Consists of 7,200 restricted stock units, which will vest in three equal annual installments beginning with the first anniversary of the grant date, subject to the Reporting Person's continued provision of services to the Issuer on each vesting date.

Consist of 23,900 restricted stock units, which will vest in three equal annual installments beginning on the first anniversary of the grant date, subject to the Reporting Person's continued provision of services to the Issuer on each vesting date.

Consist of 20,300 restricted stock units, which will vest in three equal annual installments beginning on the first anniversary of the grant date, subject to the Reporting Person's continued provision of services to the Issuer on each vesting date.

Includes 24,000 shares held jointly by the reporting person and her spouse, David Cvijic.

Consist of 8,400 restricted stock units, which will vest in three equal annual installments beginning on the first anniversary of the grant date, subject to the Reporting Person's continued provision of services to the Issuer on each vesting date.

This option represents the right to purchase 122,000 shares of the Issuer's common stock, one quarter of which will vest on the first anniversary of the date of grant with the remaining three quarters vesting in equal monthly installments through the fourth anniversary of the grant date, subject to the Reporting Person's continued provision of service to the Issuer on each vesting date.

This option represents the right to purchase 50,300 shares of the Issuer's common stock, one quarter of which will vest on the first anniversary of the grant date with the remaining three quarters vesting in equal monthly installments through the fourth anniversary of the grant date, subject to the Reporting Person's continued provision of service to the Issuer on each vesting date.

This option represents the right to purchase 42,900 shares of the Issuer's common stock, one quarter of which will vest on the first anniversary of the grant date with the remaining three quarters vesting in equal month installments through the fourth anniversary of the grant date.

This option represents the right to purchase 143,500 shares of the Issuer's common stock, one quarter of which will vest on the first anniversary of the grant date with the remaining three quarters vesting in equal monthly installments through the fourth anniversary of the grant date, subject to the Reporting Person's continued provision of service to the Issuer on each vesting date.

On March 12, 2024, a Restricted Stock Unit (RSU) held by the Reporting Person vested in part. The shares issuable on vesting of the RSU are reported as shares held by the Reporting Person. The award agreement for the RSU provides that the Registrant shall sell a number of shares necessary to cover the Reporting Person's tax withholding responsibility created by the vesting event, with no election made by the Reporting Person. The sale reported on this Form 4 relates exclusively to this mandatory sale upon vesting of the RSU.

The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.38 to $17.21, inclusive. The reporting person undertakes to provide to the Registrant, any security holder of the Registrant, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

Includes 24,000 shares held jointly by the reporting person and her spouse, David Cvijic.

The price reported in Column 4 is a weighted average price. These securities were purchased in multiple transactions at prices ranging from $25.47 to $26.44 inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities purchased at each separate price within the range set forth in this footnote.

Securities are held by Samsara BioCapital L.P. ("Samsara LP"). Samsara BioCapital GP, LLC ("Samsara LLC") is the general partner of Samsara LP and may be deemed to beneficially own the shares held by Samsara LP. Dr. Srinivas Akkaraju, MD, Ph.D. has voting and investment power over the shares held by Samsara LP and, accordingly, may be deemed to beneficially own the shares held by Samsara LP. Each of the Reporting Persons disclaims beneficial ownership in these shares except to the extent of its or his respective pecuniary interest therein.

The price reported in Column 4 is a weighted average price. These securities were purchased in multiple transactions at prices ranging from $24.25 to $25.23 inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities purchased at each separate price within the range set forth in this footnote.

Securities are held by Samsara BioCapital L.P. ("Samsara LP"). Samsara BioCapital GP, LLC ("Samsara LLC") is the general partner of Samsara LP and may be deemed to beneficially own the shares held by Samsara LP. Dr. Srinivas Akkaraju, MD, Ph.D. has voting and investment power over the shares held by Samsara LP and, accordingly, may be deemed to beneficially own the shares held by Samsara LP. Each of the Reporting Persons disclaims beneficial ownership in these shares except to the extent of its or his respective pecuniary interest therein.

The price reported in Column 4 is a weighted average price. These securities were purchased in multiple transactions at prices ranging from $27.48 to $27.50 inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities purchased at each separate price within the range set forth in this footnote.

Securities are held by Samsara BioCapital L.P. ("Samsara LP"). Samsara BioCapital GP, LLC ("Samsara LLC") is the general partner of Samsara LP and may be deemed to beneficially own the shares held by Samsara LP. Dr. Srinivas Akkaraju, MD, Ph.D. has voting and investment power over the shares held by Samsara LP and, accordingly, may be deemed to beneficially own the shares held by Samsara LP. Each of the Reporting Persons disclaims beneficial ownership in these shares except to the extent of its or his respective pecuniary interest therein.