Duraibabu Prathyusha sold SGMO

Footnotes

Represents shares underlying the portions of RSU grants that vested on June 11, 2024, which were surrendered by the Reporting Person solely for mandatory tax withholding purposes using the Issuer's closing stock price on June 11, 2024 of $0.6077/share, pursuant to the terms of the 2018 EIP. This required tax withholding transaction is deemed to constitute a disposition of these shares to the Issuer for reporting purposes and does not represent a discretionary trade by the Reporting Person in the open market or otherwise.; Includes: (a) 1,608 shares resulting from the June 11, 2024 final vesting installment of the Reporting Person's June 11, 2021 RSU grant, (b) 11,532 shares subject to the Reporting Person's February 25, 2022 RSU grant that will vest in successive equal quarterly installments through February 25, 2025, (c) 35,069 shares subject to Reporting Person's February 24, 2023 RSU grant that will vest in successive equal quarterly installments through February 24, 2026 and (d) 712,500 shares subject to the Reporting Person's January 22, 2024 RSU grant that will vest as to one-half (1/2) of the shares on the first anniversary of the grant date, and the remainder of the shares will vest in 4 successive equal quarterly installments thereafter. The vesting of all such RSU grants is subject to the Reporting Person's Continuous Service (as defined in the 2018 EIP) through each such date and subject to acceleration as provided in the 2018 EIP.