| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Stone Adam Leo | Director | C/O PERCEPTIVE ADVISORS LLC, 51 ASTOR PLACE, 10TH FLOOR, NEW YORK | /s/ Adam Leo Stone | 2025-06-13 | 0001727440 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SLDB | Director Stock Option (Right to Buy) | Award | $0 | +77.5K | $0.00 | 77.5K | Jun 12, 2025 | Common Stock | 77.5K | $4.58 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | This option was granted on June 12, 2025 and vests in full on the earlier to occur of the one-year anniversary of the grant date and immediately prior to the Issuer's next annual meeting of stockholders occurring after the grant date, and will vest automatically as to 100% of the unvested portion of such option upon specified change in control events. |