| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ATRA | Common Stock | Sale | $56,868 | -15,679 | -2% | $3.63 | 750,728 | 02 Mar 2023 | Direct | F1, F2 |
| Id | Content |
|---|---|
| F1 | Shares sold pursuant to a 10b5-1 arrangement to satisfy tax obligations in connection with the vesting of previously granted restricted stock units. |
| F2 | The sale price of the reporting person's shares represents the weighted average price of all shares sold by a broker on March 2, 2023 and March 3, 2023 on behalf of a group of employees of the Issuer to satisfy the payment of withholding tax liability of such employee. |