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 August 15, 2026.
Summary
- Option exercise/conversion: acquired 81 Common Stock on August 15, 2026; holds 36,240 after (Direct).
- Tax/exercise-price withholding: disposed of 25 Common Stock at $2.59 ($65) on August 15, 2026; holds 36,215 after (Direct).
- Option exercise/conversion: acquired 136 Common Stock on August 15, 2026; holds 36,351 after (Direct).
- Tax/exercise-price withholding: disposed of 41 Common Stock at $2.59 ($106) on August 15, 2026; holds 36,310 after (Direct).
- Option exercise/conversion: acquired 135 Common Stock on August 15, 2026; holds 36,445 after (Direct).
- Tax/exercise-price withholding: disposed of 41 Common Stock at $2.59 ($106) on August 15, 2026; holds 36,404 after (Direct).
- Option exercise/conversion: acquired 372 Common Stock on August 15, 2026; holds 36,776 after (Direct).
- Tax/exercise-price withholding: disposed of 111 Common Stock at $2.59 ($287) on August 15, 2026; holds 36,665 after (Direct).
- Option exercise/conversion: acquired 834 Common Stock on August 15, 2026; holds 37,499 after (Direct).
- Tax/exercise-price withholding: disposed of 249 Common Stock at $2.59 ($645) on August 15, 2026; holds 37,250 after (Direct).
- Option exercise/conversion: disposed of 81 Restricted Stock Unit on August 15, 2026; holds 517 after (Direct).
- Option exercise/conversion: disposed of 136 Restricted Stock Unit on August 15, 2026; holds 981 after (Direct).
- Option exercise/conversion: disposed of 135 Restricted Stock Unit on August 15, 2026; holds 2,441 after (Direct).
- Option exercise/conversion: disposed of 372 Restricted Stock Unit on August 15, 2026; holds 7,829 after (Direct).
- Option exercise/conversion: disposed of 834 Restricted Stock Unit on August 15, 2026; holds 25,023 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 |
|---|---|---|---|---|---|---|
| 2026-08-15 | Option exercise/conversion | Common Stock | 81 | — | — | 36,240 |
| 2026-08-15 | Tax/exercise-price withholding | Common Stock | 25 | $3 | $65 | 36,215 |
| 2026-08-15 | Option exercise/conversion | Common Stock | 136 | — | — | 36,351 |
| 2026-08-15 | Tax/exercise-price withholding | Common Stock | 41 | $3 | $106 | 36,310 |
| 2026-08-15 | Option exercise/conversion | Common Stock | 135 | — | — | 36,445 |
| 2026-08-15 | Tax/exercise-price withholding | Common Stock | 41 | $3 | $106 | 36,404 |
| 2026-08-15 | Option exercise/conversion | Common Stock | 372 | — | — | 36,776 |
| 2026-08-15 | Tax/exercise-price withholding | Common Stock | 111 | $3 | $287 | 36,665 |
| 2026-08-15 | Option exercise/conversion | Common Stock | 834 | — | — | 37,499 |
| 2026-08-15 | Tax/exercise-price withholding | Common Stock | 249 | $3 | $645 | 37,250 |
| 2026-08-15 | Option exercise/conversion | Restricted Stock Unit | 81 | — | — | 517 |
| 2026-08-15 | Option exercise/conversion | Restricted Stock Unit | 136 | — | — | 981 |
| 2026-08-15 | Option exercise/conversion | Restricted Stock Unit | 135 | — | — | 2,441 |
| 2026-08-15 | Option exercise/conversion | Restricted Stock Unit | 372 | — | — | 7,829 |
| 2026-08-15 | Option exercise/conversion | Restricted Stock Unit | 834 | — | — | 25,023 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-15 | Option exercise/conversion (81 shares) |
| 2026-08-15 | Tax/exercise-price withholding (25 shares) |
| 2026-08-15 | Option exercise/conversion (136 shares) |
| 2026-08-15 | Tax/exercise-price withholding (41 shares) |
| 2026-08-15 | Option exercise/conversion (135 shares) |
| 2026-08-15 | Tax/exercise-price withholding (41 shares) |
| 2026-08-15 | Option exercise/conversion (372 shares) |
| 2026-08-15 | Tax/exercise-price withholding (111 shares) |
| 2026-08-15 | Option exercise/conversion (834 shares) |
| 2026-08-15 | Tax/exercise-price withholding (249 shares) |
| 2026-08-15 | Option exercise/conversion (81 shares) |
| 2026-08-15 | Option exercise/conversion (136 shares) |
| 2026-08-15 | Option exercise/conversion (135 shares) |
| 2026-08-15 | Option exercise/conversion (372 shares) |
| 2026-08-15 | Option exercise/conversion (834 shares) |
Keywords
insider transaction, Form 4, QTRX, Quanterix Corp, neutral, Michael Francis Miller
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