Transaction Details

Footnotes

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.