[8-K] Quanterix Corporation Reports Material Event

Rhea-AI Filing Summary

On June 26, 2025, Quanterix Corporation (QTRX) filed an 8-K to announce logistics for its 2025 Annual Meeting of Stockholders. The meeting will be held virtually on September 23, 2025 at 9:00 a.m. ET. Because the meeting date falls more than 30 days after the 2024 meeting anniversary, the company has reset key shareholder deadlines:

• Rule 14a-8 proposals must be received by the corporate secretary by July 11, 2025.
• Bylaw-based business or director nominations (outside Rule 14a-8) also require written notice by July 11, 2025.
• Universal proxy notification (Rule 14a-19) is due by July 25, 2025.

No financial results, strategic transactions or operational updates were disclosed. The filing is procedural, ensuring compliance with SEC rules and providing investors sufficient time to submit proposals or nominations.

Insights

Corporate Governance Expert

TL;DR: Date shift resets proxy & nomination deadlines; procedural, not value-changing.

The 8-K is purely administrative. By moving the annual meeting to September 23, Quanterix triggers new SEC and bylaw deadlines. The company explicitly sets July 11 for Rule 14a-8 and bylaw notices, and July 25 for universal proxy compliance. This timely notice mitigates any potential governance disputes and aligns with best-practice transparency but has no direct financial impact. Investors who plan activism must act within the shortened window; otherwise, status quo prevails.

Securities Analyst

TL;DR: Neutral 8-K; no earnings or strategic data, minimal trading impact.

From a market perspective, the disclosure neither alters cash flow expectations nor changes risk profile. It simply informs of scheduling and procedural deadline changes. Liquidity, guidance and competitive outlook remain untouched. Trading volumes are unlikely to react materially; governance-focused investors may note the earlier deadlines, but fundamental valuation for QTRX should remain unchanged.

Quanterix Corpfalse000150327400015032742025-06-262025-06-26

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)

_________________________________________________

Delaware			001-38319			20-8957988
(State or other jurisdiction of incorporation)			(Commission File Number)			(IRS Employer Identification No.)

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

(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:

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

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

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

o 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:

Title of each class:

Trading symbol(s):

Name of each exchange on which registered:

Common Stock, $0.001 par value per share

QTRX

The Nasdaq Global Market

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 o

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. o

Item 5.08    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    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    Financial Statements and Exhibits.

(d)Exhibits

Exhibit No.						Description
104						Cover Page Interactive Data File (embedded within the inline XBRL document)

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.

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

FAQ

When will Quanterix (QTRX) hold its 2025 Annual Meeting?

September 23, 2025 at 9:00 a.m. ET, conducted virtually.

What is the new deadline for Rule 14a-8 shareholder proposals to Quanterix?

Proposals must reach the corporate secretary by July 11, 2025.

By when must Quanterix investors submit director nominations outside Rule 14a-8?

Written notice, with all bylaw-required information, is also due by July 11, 2025.

What is the deadline for universal proxy (Rule 14a-19) notifications for QTRX?

Stockholders intending to solicit alternate director proxies must notify the company by July 25, 2025.

Does the 8-K include any financial or earnings information for Quanterix?

No. The filing is limited to meeting logistics and shareholder deadline revisions.