| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Cunningham Everett | President and CEO, Director | C/O QUANTERIX CORPORATION, 900 MIDDLESEX TURNPIKE, BILLERICA | /s/ Daniel Char, Attorney-in-Fact | 20 Jan 2026 | 0001564777 |
No securities are beneficially owned.