Quanterix Corp — Director's Dealing 2026

Jan 6, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Quanterix Corp (QTRX)
CIK: 0001503274
Period of Report: 2026-01-02

Reporting Person: Mendel Scott (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-01-02	Common Stock	A	23372.00	$0.00	Acquired	54109.00	Direct
2026-01-02	Common Stock	A	1944.00	$0.00	Acquired	56053.00	Direct

Footnotes

F1: Represents restricted stock units that vest as to 100% of the shares on January 2, 2027 granted pursuant to the Quanterix Corporation Amended and Restated Non-Employee Director Compensation Policy. Each restricted stock unit represents the right to receive one share of the Issuer's common stock.

F2: Includes 47,836 restricted stock units.

F3: Consists of stock granted in lieu of cash fees for service on the Company's Board of Directors and committees thereof for the fourth quarter of 2025.