| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | YMAB | Common Stock | Purchase | $981,404 | +101,740 | +2.4% | $9.65 | 4,280,205 | 15 May 2023 | By WG Biotech ApS | F1, F2 |
| Id | Content |
|---|---|
| F1 | This transaction was executed in multiple trades at prices ranging from $9.64 to $10.00. The price reported reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected. |
| F2 | Reporting Person is the majority owner of WG Biotech ApS and as such has sole voting and dispositive power with respect to such shares. |