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New Quanterix (NASDAQ: QTRX) COO gets $400k salary and equity grant

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8-K

Rhea-AI Filing Summary

Quanterix Corporation appointed Anthony Catalano as its new Chief Operating Officer effective May 14, 2026. He brings prior leadership experience from Flagship Pioneering, Akoya Biosciences, Bruker Cellular Analysis and Revvity.

Under his employment agreement, Catalano will receive a $400,000 annual base salary, a $50,000 cash sign-on bonus and eligibility for an annual performance bonus targeted at up to 50% of base salary. He also received restricted stock units equal to 0.30% of Quanterix common shares outstanding on his start date, vesting in four equal annual installments.

If the company terminates him without Cause or he resigns for Good Reason, he is entitled to six months of base salary continuation, a pro-rated target bonus for the year of termination and subsidized health benefits. If such a termination occurs in connection with a Change-in-Control, salary continuation extends to nine months and all outstanding time-based equity awards become fully vested. Michael Miller, the former Chief Operating Officer, has moved to the role of Chief Technology and Products Officer.

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Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers Governance
Key personnel changes including departures, elections, or appointments of directors and executive officers.
Item 9.01 Financial Statements and Exhibits Exhibits
Financial statements, pro forma financial information, and exhibit attachments filed with this report.
COO base salary $400,000 per year Initial annualized base salary in Employment Agreement
Sign-on bonus $50,000 Cash sign-on bonus for new COO
Annual bonus target 50% of base salary Target performance bonus opportunity
Equity grant size 0.30% of shares outstanding RSUs based on Quanterix common stock at start date
Standard severance duration 6 months of base salary Termination without Cause or for Good Reason
Change-in-Control severance 9 months of base salary Termination without Cause or for Good Reason in Change-in-Control
restricted stock units financial
"a long-term equity incentive award consisting of restricted stock units (RSUs) covering shares of the Company’s common stock"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
Change-in-Control financial
"If Mr. Catalano’s employment is terminated ... in connection with a Change-in-Control (as defined in the Employment Agreement)"
A change-in-control is a transaction or event that shifts who ultimately owns or runs a company—such as a sale, merger, or transfer of a majority of voting shares—and often triggers contractual protections, payoffs or rule changes. Investors care because it can instantly alter a company’s leadership, strategy, cash flows and the value or timing of stock payouts, much like handing a house’s keys to a new owner who may change the rules and distribute proceeds differently.
Good Reason financial
"If Mr. Catalano’s employment is terminated by the Company without Cause ... or he resigns for Good Reason (as defined in the Employment Agreement)"
Cause financial
"If Mr. Catalano’s employment is terminated by the Company without Cause (as defined in the Employment Agreement)"
Emerging Growth Company regulatory
"Emerging Growth Company o o Item 5.02 Departure of Directors or Certain Officers"
An emerging growth company is a recently public or smaller public firm that qualifies for temporary, lighter regulatory and disclosure rules to reduce the cost and effort of being public. For investors, it means the company may provide less historical financial detail and face fewer reporting requirements than larger firms, so it can grow more quickly but also carries higher uncertainty—like buying a promising early-stage product with fewer user reviews.
Understanding 8-K Material Events →
false000150327400015032742026-05-142026-05-14

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): May 14, 2026
_________________________________________________
QUANTERIX CORPORATION
(Exact name of registrant as specified in its charter)
_________________________________________________
Delaware001-3831920-8957988
(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 shareQTRXThe 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 5.02    Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
On May 14, 2026, Anthony Catalano was appointed as the Chief Operating Officer of Quanterix Corporation (the “Company”).
Mr. Catalano mostly recently was employed by Flagship Pioneering, Inc. as Senior Vice of President Real Estate and Asset Management from September 2025 to May 2026. Prior to Flagship Pioneering, from July 2025 to August 2025, he was employed by the Company, following the Company’s acquisition of Akoya Biosciences, Inc. (“Akoya”). Mr. Catalano was the Senior Vice President of Operations at Akoya from April 2023 to July 2025. He was the Senior Vice President of Operations & Development with Bruker Cellular Analysis, Inc. from June 2021 to April 2023 and the Senior Director of Operations with Revvity, Inc. from 2010 to May 2021. Mr. Catalano earned an MS in Chemistry from Brandeis University and a BS in Chemistry from the University of Massachusetts at Lowell.
The Company entered into an employment agreement with Mr. Catalano (the “Employment Agreement”) in connection with his appointment as Chief Operating Officer. The Employment Agreement provides for an initial annualized base salary of $400,000, a cash sign-on bonus of $50,000 and eligibility for an annual performance bonus with an annual bonus target of up to 50% of Mr. Catalano’s base salary.
In connection with his appointment, Mr. Catalano also received a long-term equity incentive award consisting of restricted stock units (RSUs) covering shares of the Company’s common stock, par value $0.001 per share (the “Common Stock”), equivalent to 0.30 percent (0.30%) of the shares of Common Stock outstanding on his start date. The RSUs vest in four equal annual installments on each of the first four anniversaries of Mr. Catalano’s start date.
If Mr. Catalano’s employment is terminated by the Company without Cause (as defined in the Employment Agreement) or he resigns for Good Reason (as defined in the Employment Agreement), then he will receive continued payment of his base salary for six months (the “Severance Period”), payment of an amount equal to his annual target bonus for the year of termination, pro-rated as of the date of termination, and subsidized health benefits during the Severance Period. If Mr. Catalano’s employment is terminated by the Company without Cause or he resigns for Good Reason in connection with a Change-in-Control (as defined in the Employment Agreement), then the Severance Period will be extended to nine months and all of his outstanding but unvested equity awards subject to time-based vesting will also become fully vested. Receipt of the foregoing termination benefits will be subject to Mr. Catalano’s execution of a separation agreement, including certain restrictive covenants and a general release of all claims, in a form acceptable to the Company.
A copy of the Employment Agreement is filed as Exhibit 10.1 and is incorporated herein by reference.
Except for the Employment Agreement, there are no arrangements or understandings between Mr. Catalano and any other person pursuant to which Mr. Catalano was appointed as an officer. There are no family relationships between Mr. Catalano and any director, director nominee or executive officer of the Company. There are no transactions to which the Company is a party and in which Mr. Catalano has a material interest that are required to be disclosed under Item 404(a) of Regulation S-K.
Michael Miller, formerly the Chief Operating Officer of the Company, has transitioned to a new role as the Chief Technology and Products Officer of the Company.
Item 9.01    Financial Statements and Exhibits.
(d)Exhibits
Exhibit
No.		Description
10.1
Employment Agreement dated April 30, 2026 between Anthony Catalano and the Company.
104Cover 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 report to be signed on its behalf by the undersigned thereunto duly authorized.
Date: May 26, 2026
QUANTERIX CORPORATION
By:/s/ Daniel S. Char
Name:
Daniel S. Char
Title:
Chief Legal Officer and Corporate Secretary

Source: View Original Filing on SEC EDGAR

FAQ

What executive leadership change did Quanterix (QTRX) announce in this 8-K?

Quanterix appointed Anthony Catalano as Chief Operating Officer, effective May 14, 2026. He succeeds Michael Miller, who transitioned to Chief Technology and Products Officer, reflecting a reallocation of senior responsibilities rather than a departure from the company.

What is Anthony Catalano’s compensation package as Quanterix (QTRX) COO?

Anthony Catalano will receive a $400,000 annual base salary, a $50,000 sign-on bonus and eligibility for an annual performance bonus up to 50% of base salary. This structure combines fixed pay, immediate cash incentive and performance-based variable compensation.

What equity award did Quanterix (QTRX) grant its new COO?

Quanterix granted Anthony Catalano restricted stock units equal to 0.30% of shares of common stock outstanding on his start date. These RSUs vest in four equal annual installments over four years, aligning his incentives with long-term shareholder value.

What severance benefits does the Quanterix (QTRX) COO receive if terminated?

If Quanterix terminates Anthony Catalano without Cause or he resigns for Good Reason, he receives six months of base salary, a pro-rated annual target bonus for the year of termination, and subsidized health benefits during that six-month severance period.

How does a Change-in-Control affect the Quanterix (QTRX) COO’s benefits?

If Anthony Catalano is terminated without Cause or resigns for Good Reason in connection with a Change-in-Control, his salary continuation extends to nine months and all outstanding, unvested time-based equity awards become fully vested, enhancing protection in a potential transaction.

Are there any special conditions to receive the Quanterix (QTRX) COO severance?

Receipt of severance and related benefits requires Anthony Catalano to sign a separation agreement with restrictive covenants and a general release of claims. The agreement must be in a form acceptable to Quanterix, providing legal protections for the company.

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