| Id | Content |
|---|---|
| F1 | The reported shares were withheld by the issuer as payment by the reporting person for the tax liability upon vesting of 14,136 shares of restricted stock which is the remaining portion of restricted stock granted on February 19, 2021. |
| F2 | The reported shares were withheld by the issuer as payment by the reporting person for the tax liability upon vesting of 28,272 shares of restricted stock with 4-year cliff vest granted on February 19, 2021. |
| F3 | The reported shares were withheld by the issuer as payment by the reporting person for the tax liability upon vesting of 61,638 shares of restricted stock which is a portion of the restricted stock granted on February 20, 2023. |
| F4 | The reported shares were withheld by the issuer as payment by the reporting person for the tax liability upon vesting of 47,469 shares of restricted stock which is a portion of the restricted stock granted on February 20, 2024. |
| F5 | On February 20, 2025, the reporting person transferred 91,848 shares to the Joint Revocable Trust of Sean Robert Gamble and Luminita Spetcu (the "Trust") for no consideration. The reporting person and his spouse are co-trustees of the Trust, and the reporting person and members of his immediate family are the sole beneficiaries of the trust. The reporting person remains a beneficial owner of the securities held by the Trust. This amendment is being filed to report the transfer to the Trust and to correct the amounts reported as beneficially owned in Column 5 following the previously reported transactions in Table I. |