| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Brunn Carsten | President and CEO, Director | C/O CARTESIAN THERAPEUTICS, INC., 7495 NEW HORIZON WAY, FREDERICK | /s/ Matthew Bartholomae, Attorney-in-Fact for Carsten Brunn | 08 Jan 2026 | 0001760229 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | RNAC | Common Stock | Sale | $162,077 | -23,766 | -6.8% | $6.82 | 323,530 | 06 Jan 2026 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Shares sold to satisfy withholding tax obligations upon the vesting of restricted stock units and to cover related broker fees. |