Vandana Sriram - 15 Dec 2025 Form 4 Insider Report for Quanterix Corp (QTRX)

Role
Chief Financial Officer
Signature
/s/ Bonnie McManus, as Attorney-in-Fact
Issuer symbol
QTRX
Transactions as of
15 Dec 2025
Net transactions value
-$1,697
Form type
4
Filing time
18 Dec 2025, 15:28:29 UTC
Previous filing
24 Nov 2025
Next filing
20 Jan 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Sriram Vandana Chief Financial Officer C/O QUANTERIX CORPORATION, 900 MIDDLESEX TURNPIKE, BILLERICA /s/ Bonnie McManus, as Attorney-in-Fact 18 Dec 2025 0001908223

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction QTRX Common Stock Tax liability $1,697 -229 -0.27% $7.41 85,977 15 Dec 2025 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares withheld by Quanterix Corporation solely to cover tax obligations upon vesting of 777 restricted stock units (RSUs).
F2 Includes 84,652 RSUs.