| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Frohlich Tom | Chief Executive Officer, Director | C/O JADE BIOSCIENCES, INC., 221 CRESCENT ST., BLDG. 23, STE. 105, WALTHAM | /s/ Elizabeth Balta, as attorney-in-fact for Tom Frohlich | 19 May 2025 | 0001823925 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | JBIO | Common Stock | Purchase | $44,400 | +6,000 | $7.40 | 6,000 | 16 May 2025 | Direct |