| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| PFEFFER DAVID | Director | 464 IVY AVENUE, HAWORTH | /s/ David Pfeffer | 13 Mar 2026 | 0001756269 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ATLN | Common Stock | Options Exercise | +161,290 | +10542% | $0.000000* | 162,820 | 12 Mar 2026 | Direct | F1 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ATLN | Restricted Stock Units | Options Exercise | +161,290 | $2.97* | 0 | 12 Mar 2026 | Common Stock | 161,290 | $0.000000 | Direct | F1, F2, F3 |
| Id | Content |
|---|---|
| F1 | Conversion Ratio: Represents the conversion of Restricted Stock Units (RSUs) into Common Stock on a one-for-one basis. |
| F2 | These shares were valued at $2.97 the closing market price on February 27, 2026 when the RSU exercise notice was executed. |
| F3 | Vesting Details: These RSUs were granted on June 18, 2024, one year thereafter, subject to the satisfaction of certain obligations in the grant. |