| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Brooke William W | Director | C/O MAXCYTE, INC., 9713 KEY WEST AVENUE, SUITE 400, ROCKVILLE | /s/ David Sandoval, Attorney-in-Fact | 13 Aug 2025 | 0001545337 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MXCT | Common Stock | Purchase | $64,500 | +50,000 | +50% | $1.29 | 150,879 | 13 Aug 2025 | Direct |