Form 4: Quanterix CEO Discloses Routine Stock Transaction
Insider Transaction Report
Quanterix Corporation's President and CEO, Masoud Toloue, reported a routine disposition of shares to cover tax obligations related to RSU vesting.
Summary
- Masoud Toloue, President & CEO and Director of Quanterix Corp (QTRX), reported a transaction on November 15, 2025.
- 1,242 shares of Common Stock were disposed of at a price of $5.74 per share.
- These shares were withheld by Quanterix Corporation to cover tax obligations upon the vesting of 2,480 restricted stock units (RSUs).
- Following this transaction, Mr. Toloue beneficially owns 510,200 shares of Common Stock, which includes 216,606 RSUs.
Sentiment
Score: 5
Explanation: The sentiment is neutral as this is a routine, non-discretionary transaction for tax purposes related to RSU vesting, which is a standard part of executive compensation.
Positives
- The transaction represents a routine tax withholding event associated with the vesting of restricted stock units, indicating the fulfillment of compensation agreements.
Negatives
- The disposition of shares, while for tax purposes, reduces the direct shareholding of the CEO by 1,242 shares.
Future Outlook
NA
Industry Context
This filing is a standard disclosure of an insider transaction and does not provide information related to broader industry trends or competitive landscape.
Corporate Governance
| Change Type | Description | Effective Date | Impact Assessment |
|---|---|---|---|
| Power of Attorney | A Power of Attorney was executed on June 8, 2021, authorizing specific individuals to execute Forms 3, 4, and 5 on behalf of Masoud Toloue for SEC compliance. | 2021-06-08 | Ensures timely and compliant filing of insider trading reports by delegating authority to legal and corporate personnel. |
Related Party Transactions
- The transaction involves the withholding of shares by Quanterix Corporation (the issuer) from its President & CEO (a related party) to cover tax obligations arising from RSU vesting, which is a standard compensation-related dealing.
Stakeholder Impact
- Shareholders: Minimal direct impact as this is a routine, non-discretionary transaction for tax purposes, not a discretionary sale or purchase.
- Employees: Reflects standard executive compensation practices involving restricted stock units.
Key Dates
| Date | Description |
|---|---|
| 2021-06-08 | Date of Power of Attorney granting authority to execute SEC filings on behalf of Masoud Toloue. |
| 2025-11-15 | Date of the reported transaction where shares were disposed of for tax obligations. |
| 2025-11-17 | Date the Form 4 was signed by the attorney-in-fact. |
Keywords
Quanterix Corp, QTRX, Masoud Toloue, Form 4, Insider Transaction, Restricted Stock Units, RSU Vesting, Tax Withholding, Common Stock
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