QTRX.NASDAQQuanterix CORP
Form 4: Quanterix CTO Reports Stock Transaction
Sentiment:
Insider Transaction (Form 4)
Michael Francis Miller, Chief Technology Officer of Quanterix Corp, reported multiple transactions in common stock on October 15, 2026.
Summary
- Option exercise/conversion: acquired 81 Common Stock on October 15, 2026; holds 38,533 after (Direct).
- Tax/exercise-price withholding: disposed of 25 Common Stock at $3.07 ($77) on October 15, 2026; holds 38,508 after (Direct).
- Option exercise/conversion: acquired 136 Common Stock on October 15, 2026; holds 38,644 after (Direct).
- Tax/exercise-price withholding: disposed of 41 Common Stock at $3.07 ($126) on October 15, 2026; holds 38,603 after (Direct).
- Option exercise/conversion: acquired 135 Common Stock on October 15, 2026; holds 38,738 after (Direct).
- Tax/exercise-price withholding: disposed of 41 Common Stock at $3.07 ($126) on October 15, 2026; holds 38,697 after (Direct).
- Option exercise/conversion: acquired 372 Common Stock on October 15, 2026; holds 39,069 after (Direct).
- Tax/exercise-price withholding: disposed of 111 Common Stock at $3.07 ($341) on October 15, 2026; holds 38,958 after (Direct).
- Option exercise/conversion: acquired 834 Common Stock on October 15, 2026; holds 39,792 after (Direct).
- Tax/exercise-price withholding: disposed of 249 Common Stock at $3.07 ($764) on October 15, 2026; holds 39,543 after (Direct).
- Option exercise/conversion: disposed of 81 Restricted Stock Unit on October 15, 2026; holds 355 after (Direct).
- Option exercise/conversion: disposed of 136 Restricted Stock Unit on October 15, 2026; holds 709 after (Direct).
- Option exercise/conversion: disposed of 135 Restricted Stock Unit on October 15, 2026; holds 2,171 after (Direct).
- Option exercise/conversion: disposed of 372 Restricted Stock Unit on October 15, 2026; holds 7,085 after (Direct).
- Option exercise/conversion: disposed of 834 Restricted Stock Unit on October 15, 2026; holds 23,355 after (Direct).
Sentiment
Score: 5
Explanation: StockSavvy.ai views this as routine: the reported changes are grants, option exercises, tax withholding or similar administrative transactions, which carry limited directional signal.
Insider Transactions
Michael Francis Miller — Officer (Chief Technology Officer)
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-10-15 | Option exercise/conversion | Common Stock | 81 | — | — | 38,533 |
| 2026-10-15 | Tax/exercise-price withholding | Common Stock | 25 | $3 | $77 | 38,508 |
| 2026-10-15 | Option exercise/conversion | Common Stock | 136 | — | — | 38,644 |
| 2026-10-15 | Tax/exercise-price withholding | Common Stock | 41 | $3 | $126 | 38,603 |
| 2026-10-15 | Option exercise/conversion | Common Stock | 135 | — | — | 38,738 |
| 2026-10-15 | Tax/exercise-price withholding | Common Stock | 41 | $3 | $126 | 38,697 |
| 2026-10-15 | Option exercise/conversion | Common Stock | 372 | — | — | 39,069 |
| 2026-10-15 | Tax/exercise-price withholding | Common Stock | 111 | $3 | $341 | 38,958 |
| 2026-10-15 | Option exercise/conversion | Common Stock | 834 | — | — | 39,792 |
| 2026-10-15 | Tax/exercise-price withholding | Common Stock | 249 | $3 | $764 | 39,543 |
| 2026-10-15 | Option exercise/conversion | Restricted Stock Unit | 81 | — | — | 355 |
| 2026-10-15 | Option exercise/conversion | Restricted Stock Unit | 136 | — | — | 709 |
| 2026-10-15 | Option exercise/conversion | Restricted Stock Unit | 135 | — | — | 2,171 |
| 2026-10-15 | Option exercise/conversion | Restricted Stock Unit | 372 | — | — | 7,085 |
| 2026-10-15 | Option exercise/conversion | Restricted Stock Unit | 834 | — | — | 23,355 |
Key Dates
| Date | Description |
|---|---|
| 2026-10-15 | Option exercise/conversion (81 shares) |
| 2026-10-15 | Tax/exercise-price withholding (25 shares) |
| 2026-10-15 | Option exercise/conversion (136 shares) |
| 2026-10-15 | Tax/exercise-price withholding (41 shares) |
| 2026-10-15 | Option exercise/conversion (135 shares) |
| 2026-10-15 | Tax/exercise-price withholding (41 shares) |
| 2026-10-15 | Option exercise/conversion (372 shares) |
| 2026-10-15 | Tax/exercise-price withholding (111 shares) |
| 2026-10-15 | Option exercise/conversion (834 shares) |
| 2026-10-15 | Tax/exercise-price withholding (249 shares) |
| 2026-10-15 | Option exercise/conversion (81 shares) |
| 2026-10-15 | Option exercise/conversion (136 shares) |
| 2026-10-15 | Option exercise/conversion (135 shares) |
| 2026-10-15 | Option exercise/conversion (372 shares) |
| 2026-10-15 | Option exercise/conversion (834 shares) |
Keywords
insider transaction, Form 4, QTRX, Quanterix Corp, neutral, Michael Francis Miller
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