| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Vazzano Joseph Walter | Chief Financial Officer | 6555 CARNEGIE AVE., 4TH FLOOR, CLEVELAND | /s/ Joseph Vazzano | 16 Mar 2026 | 0001715291 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ABEO | Common Stock | Sale | $3,737 | -785 | -0.14% | $4.76 | 567,775 | 16 Mar 2026 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | The sale reported in this Form 4 was to cover tax obligations associated with the vesting of restricted stock awards. |