Scott Mendel - 08 Jul 2026 Form 4 Insider Report for Quanterix Corp (QTRX)

Reporting relationship: Director
Issuer ticker: QTRX
Reported as of: 08 Jul 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 09 Jul 2026, 17:20:29 UTC
Prior SEC filing: 02 Jul 2026
Source filing: View source filing
Reporting owner signature: /s/ Meghan Shevlin, Attorney-in-Fact

Key filing fact

Scott Mendel filed Form 4 for Quanterix Corp (QTRX) on 09 Jul 2026.

Key facts

This page summarizes Scott Mendel's Form 4 filing for Quanterix Corp (QTRX).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 09 Jul 2026, 17:20.

Change

Previous filing in this sequence was filed on 02 Jul 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001515051 Primary reporting owner

Mendel Scott

Relationship: Director
Address: C/O QUANTERIX CORPORATION, 900 MIDDLESEX TURNPIKE, BILLERICA
Signature: /s/ Meghan Shevlin, Attorney-in-Fact
Signature date: 09 Jul 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

QTRX transaction

Common Stock

Options Exercise

Transaction value
Shares: +8,073
Change %: +51%
Price
Shares after: 24,056
Date: 08 Jul 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

QTRX transaction Derivative

Restricted Stock Unit

Options Exercise

Transaction value
Shares: -8,073
Change %: -33%
Price: $0.000000^*
Shares after: 16,391
Date: 08 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 8,073
Exercise price: $0.000000
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Restricted stock units convert into common stock on a one-for-one basis.

Footnote F2

On July 8, 2025, the reporting person was granted 24,464 restricted stock units, vesting 33%, 33%, and 34% on the first, second, and third anniversaries of the grant date, respectively.