William P. Donnelly - 02 Jan 2026 Form 4 Insider Report for Quanterix Corp (QTRX)

Role
Executive Chair, Director
Signature
/s/ Bonnie McManus, as Attorney-in-Fact
Issuer symbol
QTRX
Transactions as of
02 Jan 2026
Net transactions value
$0
Form type
4
Filing time
06 Jan 2026, 19:16:13 UTC
Previous filing
02 Jan 2026
Next filing
25 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
DONNELLY WILLIAM P Executive Chair, Director C/O QUANTERIX CORPORATION, 900 MIDDLESEX TURNPIKE, BILLERICA /s/ Bonnie McManus, as Attorney-in-Fact 06 Jan 2026 0001207928

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction QTRX Common Stock Award $0 +2,377 +1.6% $0.000000 150,751 02 Jan 2026 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 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.
F2 Includes 2,802 restricted stock units.