Quanterix COO exercises RSUs, withholds shares for tax
Quanterix Corp Chief Operating Officer Michael Francis Miller reported routine equity compensation activity.
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Form Type
4
Rhea-AI Filing Summary
Quanterix Corp Chief Operating Officer Michael Francis Miller reported routine equity compensation activity. He exercised 130 restricted stock units that converted into 130 shares of common stock on a one-for-one basis. To cover tax obligations, 39 common shares were disposed of through a tax-withholding transaction, not an open-market sale.
Following these transactions, Miller directly holds 32,613 shares of common stock and 549 restricted stock units that remain outstanding from a prior grant of 6,278 RSUs made on September 23, 2022.
Insider Trade Summary
130 shares exercised/converted
Exercise
3 txns
Insider
Miller Michael Francis
Role
Chief Operating Officer
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Restricted Stock Unit | 130 | $0.00 | $0.00 |
| Exercise | Common Stock | 130 | $0.00 | $0.00 |
| Exercise Price or Tax Liability | Common Stock | 39 | $3.13 | $122.07 |
Holdings After Transaction:
Restricted Stock Unit — 549 contracts (Direct);
Common Stock — 32,613 shares (Direct)
Footnotes (2)
- F1. Restricted stock units convert into common stock on a one-for-one basis.
- F2. On September 23, 2022, the reporting person was granted 6,278 restricted stock units, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the last day of each month thereafter.
Key Figures
RSUs converted: 130 units
Shares withheld for taxes: 39 shares
Common shares after transaction: 32,613 shares
+3 more
6 metrics
RSUs converted
130 units
Restricted stock units converting one-for-one into common stock on exercise date
Shares withheld for taxes
39 shares
Tax-withholding disposition related to equity compensation event
Common shares after transaction
32,613 shares
Direct holdings following reported Form 4 transactions
Outstanding RSUs after transaction
549 units
Remaining from 6,278-unit RSU grant dated September 23, 2022
Original RSU grant size
6,278 units
Grant to COO on September 23, 2022 with time-based vesting
Tax-withholding price
$3.13 per share
Value used for 39-share tax-withholding disposition
Key Terms
Restricted stock units, tax-withholding disposition, derivative security, vesting
4 terms
Restricted stock units financial
"Restricted stock units convert into common stock on a one-for-one basis."
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.
tax-withholding disposition financial
"transaction_action": "tax-withholding disposition""
A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.
derivative security financial
"transaction_code_description": "Exercise or conversion of derivative security""
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
vesting financial
"vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments"
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What insider transactions did Quanterix (QTRX) COO Michael Miller report?
Michael Miller reported exercising 130 restricted stock units into common shares and a related tax-withholding disposition of 39 shares. These actions reflect routine equity compensation events rather than open-market buying or selling of Quanterix stock.
What restricted stock unit activity is disclosed for Quanterix (QTRX) in this filing?
The filing shows 130 restricted stock units converting into 130 common shares on a one-for-one basis. These RSUs are part of a 6,278-unit grant dated September 23, 2022, which vests over time according to a specified vesting schedule.
Is the Quanterix (QTRX) COO’s Form 4 transaction a strong bullish or bearish signal?
The reported activity appears routine. It reflects equity compensation vesting, an RSU-to-share conversion, and 39 shares withheld for taxes. Such compensation-related and tax-withholding transactions typically carry limited signaling value about management’s view of Quanterix stock.
AI-generated analysis. How Rhea-AI works. Not financial advice.
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