# EDGAR Filing Document

**Accession Number:** 0001503274
**File Stem:** 0001503274-25-000063
**Filing Date:** 2025-7
**Character Count:** 7609
**Document Hash:** 98ef4d520492c5e2ed144edff8c5ce32
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001503274-25-000063.hdr.sgml**: 20250701

**ACCESSION NUMBER**: 0001503274-25-000063

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 12

**CONFORMED PERIOD OF REPORT**: 20250626

**ITEM INFORMATION**: Shareholder Nominations Pursuant to Exchange Act Rule 14a-11

**ITEM INFORMATION**: Other Events

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20250701

**DATE AS OF CHANGE**: 20250701

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Quanterix Corp
- **CENTRAL INDEX KEY:** 0001503274
- **STANDARD INDUSTRIAL CLASSIFICATION:** LABORATORY ANALYTICAL INSTRUMENTS [3826]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 208957988
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38319
- **FILM NUMBER:** 251096433

**BUSINESS ADDRESS:**
- **STREET 1:** 900 MIDDLESEX TURNPIKE
- **CITY:** BILLERICA
- **STATE:** MA
- **ZIP:** 01821
- **BUSINESS PHONE:** 617-301-9400

**MAIL ADDRESS:**
- **STREET 1:** 900 MIDDLESEX TURNPIKE
- **CITY:** BILLERICA
- **STATE:** MA
- **ZIP:** 01821

?xml version='1.0' encoding='ASCII'? qtrx-20250626

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

______________________________________

**FORM 8-K**

______________________________________

**CURRENT REPORT**

**Pursuant to Section 13 or 15(d)**

**of the Securities Exchange Act of 1934**

**Date of Report (Date of earliest event reported): June 26, 2025**

_________________________________________________

**QUANTERIX CORPORATION**

(Exact name of registrant as specified in its charter)

_________________________________________________

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| | | |
|:---|:---|:---|
| **Delaware** | **001-38319** | **20-8957988** |
| (State or other jurisdiction<br>of incorporation) | (Commission File Number) | (IRS Employer<br>Identification No.) |

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| | |
|:---|:---|
| **900 Middlesex Turnpike** | |
| **Billerica, MA** | **01821** |
| (Address of principal executive offices) | (Zip Code) |

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**(617) 301-9400**

(Registrant's telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

□ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

□ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

□ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

□ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

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| | | |
|:---|:---|:---|
| **Title of each class:** | **Trading symbol(s):** | **Name of each exchange on which**<br>**registered:** |
| Common Stock, $0.001 par value per share | QTRX | The Nasdaq Global Market |

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Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging Growth Company □

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. □

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**Item 5.08&nbsp;&nbsp;&nbsp;&nbsp;Shareholder Director Nominations.**

To the extent applicable, the information in Item 8.01 of this Current Report on Form 8-K (this "Form 8-K") is incorporated by reference into this Item 5.08.

**Item 8.01&nbsp;&nbsp;&nbsp;&nbsp;Other Events.**

On June 26, 2025, the board of directors (the "Board") of Quanterix Corporation (the "Company") determined that the Company's 2025 Annual Meeting of Stockholders (the "Annual Meeting") will be held virtually by means of remote communication on September 23, 2025, at 9:00 a.m. ET.

Due to the fact that the date of the Annual Meeting is more than 30 days from the anniversary date of the Company's 2024 Annual Meeting of Stockholders, the following deadlines (each as listed in the Company's 2024 Proxy Statement on Schedule 14A, as filed with the Securities and Exchange Commission ("SEC") on April 15, 2024) are no longer applicable: (i) the deadline for submission of any qualified stockholder proposal pursuant to Rule 14a-8 under the Securities Exchange Act of 1934, as amended (such rule, "Rule 14a-8" and such act, the "Exchange Act"), (ii) the deadline for submission of any qualified stockholder nomination or proposal outside of Rule 14a-8 and (iii) the deadline for stockholders who intend to solicit proxies in support of director nominees other than the Company's nominees at the Annual Meeting to provide notice that sets forth the information required by Rule 14a-19 under the Exchange Act. The Company is hereby providing notice of the revised deadlines for such proposals and such notice via this Form 8-K.

In accordance with the rules and regulations of the SEC (the "SEC Rules"), stockholders of the Company who wish to have a proposal considered for inclusion in the Company's proxy materials for the Annual Meeting pursuant to Rule 14a-8 must ensure that such proposal is received by the corporate secretary of the Company (the "Secretary") at the Company's corporate office at 900 Middlesex Turnpike, Building 1, Billerica, Massachusetts 01821, no later than the close of business on July 11, 2025, which the Company has determined to be a reasonable time before it expects to begin to print and send its proxy materials to stockholders. Any such proposal must also meet the requirements set forth in the SEC Rules in order to be eligible for inclusion in the proxy materials for the Annual Meeting.

In addition, in accordance with the requirements contained in the Company's Restated Bylaws (the "Bylaws"), stockholders of the Company who wish to bring business before the Annual Meeting outside of Rule 14a-8 of the Exchange Act or to nominate a person for election as a director must ensure that written notice of such proposal (including all information specified in the Bylaws) is received by the Secretary at the address specified above no later than the close of business on July 11, 2025. Any such proposal must meet the requirements set forth in the Bylaws in order to be brought before the Annual Meeting.

In addition, to comply with the universal proxy rules, stockholders who intend to solicit proxies in support of director nominees other than the Company's nominees must provide notice that sets forth the information required by Rule 14a-19 under the Exchange Act by July 25, 2025.

**Item 9.01&nbsp;&nbsp;&nbsp;&nbsp;Financial Statements and Exhibits.**

(d)Exhibits

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| | |
|:---|:---|
| **Exhibit<br>No.** | **Description** |
| 104 | Cover Page Interactive Data File (embedded within the inline XBRL document) |

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**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this Current Report to be signed on its behalf by the undersigned hereunto duly authorized.

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| | | |
|:---|:---|:---|
| Date: July 1, 2025 | **QUANTERIX CORPORATION** | **QUANTERIX CORPORATION** |
|  | **By:** | /s/ Vandana Sriram |
|  | **Name:** | Vandana Sriram |
|  | **Title:** | Chief Financial Officer |

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