| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CSTL | Restricted Stock Units | Award | $0 | +6.78K | $0.00 | 6.78K | May 23, 2024 | Common Stock | 6.78K | Direct | F1, F2 |
| Id | Content |
|---|---|
| F1 | Each Restricted Stock Unit ("RSU") represents the right to receive one share of the Issuer's Common Stock. |
| F2 | The RSUs vest in three equal annual installments beginning on May 23, 2025. |
This Amended Form 4 restates the original Form 4 in its entirety.