| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Eck Steven W | SVP & Chief Accounting Officer | RADNOR CORPORATE CENTER, BUILDING ONE,, SUITE 200, 100 MATSONFORD ROAD, RADNOR | /s/ Scott Baker,by power of attorney for Steven Eck | 25 Feb 2026 | 0001748813 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AVTR | Common Stock | Tax liability | $17,931 | -2,017 | -2% | $8.89 | 99,785 | 23 Feb 2026 | Direct | F1 |
| transaction | AVTR | Common Stock | Tax liability | $4,118 | -452 | -0.45% | $9.11 | 99,333 | 24 Feb 2026 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs. |