Quanterix (QTRX) CCO files initial ownership report with no shares

Rhea-AI Filing Summary

Quanterix Corp (ticker QTRX) reports that James Edward Gute Jr., its Chief Commercial Officer, has filed an initial statement of beneficial ownership of securities on Form 3. The filing shows no reportable holdings or transactions in Quanterix Corp securities as of this filing.

Key Terms

beneficial ownership, reporting person, Form 3

3 terms

beneficial ownership financial

"has filed an initial statement of beneficial ownership of securities"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

reporting person regulatory

"The reporting person is James Edward Gute Jr."

Form 3 regulatory

"filed an initial statement of beneficial ownership of securities on Form 3"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

FAQ

What does the Form 3 filed for Quanterix Corp (QTRX) disclose?

The Form 3 discloses that James Edward Gute Jr., Chief Commercial Officer of Quanterix Corp, has filed his initial statement of beneficial ownership and reports no current holdings in Quanterix securities in this filing.

Who is the reporting person in the Quanterix Corp (QTRX) Form 3?

The reporting person is James Edward Gute Jr., who serves as Chief Commercial Officer of Quanterix Corp. He is identified as an officer but not as a director or 10% owner in this ownership report.

Does the Quanterix Corp (QTRX) Form 3 show any insider transactions?

No. The Form 3 shows no transactions, with buy, sell, acquire, dispose, and other transaction counts all reported as zero, indicating only an initial ownership status filing without trades.

Does the Quanterix Corp (QTRX) Form 3 report any share holdings?

The filing reports no holding entries and no derivative positions, meaning there are no Quanterix securities listed as beneficially owned by James Edward Gute Jr. in this Form 3.

Is the Quanterix Corp (QTRX) Form 3 related to a Rule 10b5-1 trading plan?

No. The document-level indicator for Rule 10b5-1 plan status is null, and there are no transactions or footnotes describing any trading plan in connection with this Form 3.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Gute James Edward Jr.

(Last) (First) (Middle)

C/O QUANTERIX CORPORATION

900 MIDDLESEX TURNPIKE

(Street)

BILLERICA MASSACHUSETTS 01821

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
08/17/2026

3. Issuer Name and Ticker or Trading Symbol
Quanterix Corp [ QTRX ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Commercial Officer

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

No securities are beneficially owned.

	/s/ Meghan Shevlin, Attorney-in-Fact	08/19/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)