Quanterix Corp

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of

the Securities Exchange Act of 1934 (Amendment No. )

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

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Preliminary Proxy Statement

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Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

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Definitive Proxy Statement

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Definitive Additional Materials

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Soliciting Material under §240.14a-12

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Quanterix Corporation

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(Name of Registrant as Specified In Its Charter)

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(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

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No fee required.

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Fee paid previously with preliminary materials.

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Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

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April 15, 2024​

To Our Stockholders:

You are cordially invited to attend the 2024 annual meeting of stockholders of Quanterix Corporation to be held at 10:00 a.m. ET on Monday, June 3, 2024 at our offices located at 900 Middlesex Turnpike, Building 1, Billerica, MA 01821. If the annual meeting is adjourned for any reason, then proxies submitted may be used at any adjournment of the 2024 annual meeting.

Details regarding the meeting, the business to be conducted at the meeting, and information about Quanterix Corporation that you should consider when you vote your shares are described in the accompanying proxy statement.

At the annual meeting, two persons will be elected to our Board of Directors to serve three-year terms expiring in 2027. In addition, we will ask stockholders to approve by an advisory vote the compensation of our named executive officers, as disclosed in this proxy statement, and to ratify the appointment of Ernst & Young LLP as our independent registered public accounting firm for our fiscal year ending December 31, 2024. Our Board of Directors recommends the approval of each of these proposals. Such other business will be transacted as may properly come before the annual meeting.

Under Securities and Exchange Commission rules that allow companies to furnish proxy materials to stockholders over the internet, we have elected to deliver our proxy materials to the majority of our stockholders over the internet. This delivery process allows us to provide stockholders with the information they need, while at the same time conserving natural resources and lowering the cost of delivery. On or about April 15, 2024, we intend to begin sending to our stockholders a Notice of Internet Availability of Proxy Materials (the “Notice”) containing instructions on how to access our proxy statement for our 2024 annual meeting and our 2023 annual report to stockholders. The Notice also provides instructions on how to vote online or by telephone and how to receive a paper copy of the proxy materials by mail.

We hope you will be able to attend the annual meeting. Whether or not you plan to attend the annual meeting, we hope you will vote promptly. Information about voting methods is set forth in the accompanying proxy statement.

Thank you for your continued support of Quanterix Corporation.

QUANTERIX CORPORATION

900 Middlesex Turnpike

Billerica, Massachusetts 01821

April 15, 2024​

NOTICE OF 2024 ANNUAL MEETING OF STOCKHOLDERS

TIME: 10:00 a.m. ET

DATE: Monday, June 3, 2024

LOCATION: Quanterix Corporation, 900 Middlesex Turnpike, Building 1, Billerica, MA 01821

PURPOSES:

To elect two directors to serve three-year terms expiring at the annual meeting of stockholders in 2027 or until their successors are duly elected and qualified;

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To approve by an advisory vote the compensation of our named executive officers, as disclosed in this proxy statement (“Say-on-Pay”);

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To ratify the appointment of Ernst & Young LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2024; and

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To transact such other business that is properly presented at the annual meeting and any adjournments or postponements thereof.

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WHO MAY VOTE:

You may vote if you were the record owner of Quanterix Corporation common stock at the close of business on April 5, 2024. A list of stockholders of record will be available at the annual meeting and, during the 10 days prior to the annual meeting, at our principal executive offices, located at 900 Middlesex Turnpike, Building 1, Billerica, Massachusetts 01821.

All stockholders are cordially invited to attend the annual meeting. Whether you plan to attend the annual meeting or not, we urge you to vote by following the instructions in the Notice of Internet Availability of Proxy Materials and submit your proxy by the internet, telephone or mail in order to ensure the presence of a quorum. You may change or revoke your proxy at any time before it is voted at the meeting.