Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
2025-09-12 Purchase | 2025-09-17 10:24 am | Quanterix Corp | QTRX | Sriram Vandana Chief Financial Officer | 4,150 | $4.79 | $19,879 | 87,200 (Direct) | View |
2025-06-12 Purchase | 2025-06-13 4:39 pm | Quanterix Corp | QTRX | WALT DAVID R Director | 160,000 | $6.1561 | $984,968 | 1,866,933 (Direct) | View |
2025-06-09 Purchase | 2025-06-10 4:08 pm | Quanterix Corp | QTRX | Toloue Masoud President & CEO | 45,900 | $5.4188 | $248,723 | 518,922 (Direct) | View |
2025-06-06 Purchase | 2025-06-09 5:44 pm | Quanterix Corp | QTRX | WALT DAVID R Director | 210,000 | $5.399 | $1,133,796 | 1,706,933 (Direct) | View |
2025-06-06 Purchase | 2025-06-09 5:10 pm | Quanterix Corp | QTRX | DONNELLY WILLIAM P Director | 93,113 | $5.438 | $506,348 | 139,094 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
2025-10-15 Tax Withholding | 2025-10-17 9:44 pm | N/A N/A | Quanterix Corp | QTRX | Sriram Vandana Chief Financial Officer | 229 | $5.78 | 86,742 (Direct) | View |
2025-10-15 Tax Withholding | 2025-10-17 9:43 pm | N/A N/A | Quanterix Corp | QTRX | Toloue Masoud President & CEO | 1,242 | $5.78 | 511,696 (Direct) | View |
2025-10-01 Option Award | 2025-10-03 8:54 pm | N/A N/A | Quanterix Corp | QTRX | LAI GOLDMAN MYLA Director | 2,084 | $5.54 | 29,488 (Direct) | View |
2025-10-01 Option Award | 2025-10-03 8:54 pm | N/A N/A | Quanterix Corp | QTRX | DONNELLY WILLIAM P Director | 5,076 | $5.54 | 148,374 (Direct) | View |
2025-10-01 Option Award | 2025-10-03 8:53 pm | N/A N/A | Quanterix Corp | QTRX | Mendel Scott Director | 2,084 | $5.54 | 30,737 (Direct) | View |
2025-10-01 Option Award | 2025-10-03 8:04 pm | N/A N/A | Quanterix Corp | QTRX | WALT DAVID R Director | 2,594 | $5.54 | 1,871,675 (Direct) | View |
2025-09-30 Tax Withholding | 2025-10-02 7:31 pm | N/A N/A | Quanterix Corp | QTRX | Toloue Masoud President & CEO | 254 | $5.43 | 512,938 (Direct) | View |
2025-09-15 Tax Withholding | 2025-09-17 8:11 pm | N/A N/A | Quanterix Corp | QTRX | Sriram Vandana Chief Financial Officer | 229 | $4.97 | 86,971 (Direct) | View |
2025-09-15 Tax Withholding | 2025-09-17 8:10 pm | N/A N/A | Quanterix Corp | QTRX | Toloue Masoud President & CEO | 1,242 | $4.97 | 513,192 (Direct) | View |
2025-08-31 Tax Withholding | 2025-09-03 10:31 am | N/A N/A | Quanterix Corp | QTRX | Toloue Masoud President & CEO | 254 | $4.55 | 514,434 (Direct) | View |
2025-08-15 Tax Withholding | 2025-08-19 4:38 pm | N/A N/A | Quanterix Corp | QTRX | Sriram Vandana Chief Financial Officer | 229 | $4.57 | 83,050 (Direct) | View |
2025-08-15 Tax Withholding | 2025-08-19 4:36 pm | N/A N/A | Quanterix Corp | QTRX | Toloue Masoud President & CEO | 1,242 | $4.57 | 514,688 (Direct) | View |
2025-07-31 Tax Withholding | 2025-08-04 4:03 pm | N/A N/A | Quanterix Corp | QTRX | Toloue Masoud President & CEO | 254 | $5.94 | 515,930 (Direct) | View |
2025-07-15 Tax Withholding | 2025-07-17 4:38 pm | N/A N/A | Quanterix Corp | QTRX | Sriram Vandana Chief Financial Officer | 229 | $5.49 | 83,279 (Direct) | View |
2025-07-15 Tax Withholding | 2025-07-17 4:37 pm | N/A N/A | Quanterix Corp | QTRX | Toloue Masoud President & CEO | 1,242 | $5.49 | 516,184 (Direct) | View |
2025-07-08 Option Award | 2025-07-10 8:39 pm | N/A 2035-07-08 | Quanterix Corp | QTRX | LAI GOLDMAN MYLA Director | 78,162 | $0 | 78,162 (Direct) | View |
2025-07-08 Option Award | 2025-07-10 8:39 pm | N/A 2035-07-08 | Quanterix Corp | QTRX | Mendel Scott Director | 79,411 | $0 | 79,411 (Direct) | View |
2025-07-01 Option Award | 2025-07-03 2:37 pm | N/A N/A | Quanterix Corp | QTRX | Hlavinka Sarah E. Director | 2,615 | $6.69 | 60,070 (Direct) | View |
2025-07-01 Option Award | 2025-07-02 5:39 pm | N/A N/A | Quanterix Corp | QTRX | MEISTER PAUL M Director | 2,242 | $6.69 | 309,279 (Direct) | View |
2025-07-01 Option Award | 2025-07-02 5:37 pm | N/A N/A | Quanterix Corp | QTRX | DONNELLY WILLIAM P Director | 4,204 | $6.69 | 143,298 (Direct) | View |
2025-07-01 Option Award | 2025-07-02 5:35 pm | N/A N/A | Quanterix Corp | QTRX | WALT DAVID R Director | 2,148 | $6.69 | 1,869,081 (Direct) | View |
2025-06-30 Tax Withholding | 2025-07-02 4:27 pm | N/A N/A | Quanterix Corp | QTRX | Toloue Masoud President & CEO | 254 | $6.65 | 517,426 (Direct) | View |
2025-06-15 Tax Withholding | 2025-06-17 5:18 pm | N/A N/A | Quanterix Corp | QTRX | Toloue Masoud President & CEO | 1,242 | $6.06 | 517,680 (Direct) | View |
2025-06-15 Tax Withholding | 2025-06-17 5:18 pm | N/A N/A | Quanterix Corp | QTRX | Sriram Vandana Chief Financial Officer | 229 | $6.06 | 83,508 (Direct) | View |
2025-05-31 Tax Withholding | 2025-06-03 4:19 pm | N/A N/A | Quanterix Corp | QTRX | Toloue Masoud President & CEO | 254 | $5.2 | 473,022 (Direct) | View |
2025-05-15 Tax Withholding | 2025-05-19 09:15 am | N/A N/A | Quanterix Corp | QTRX | Sriram Vandana Chief Financial Officer | 229 | $4.5 | 83,737 (Direct) | View |
2025-05-15 Tax Withholding | 2025-05-19 09:14 am | N/A N/A | Quanterix Corp | QTRX | Toloue Masoud President & CEO | 1,242 | $4.5 | 473,276 (Direct) | View |
2025-04-30 Tax Withholding | 2025-05-02 4:05 pm | N/A N/A | Quanterix Corp | QTRX | Toloue Masoud President & CEO | 254 | $5.76 | 474,518 (Direct) | View |
2025-04-15 Tax Withholding | 2025-04-17 4:01 pm | N/A N/A | Quanterix Corp | QTRX | Sriram Vandana Chief Financial Officer | 229 | $5.36 | 83,966 (Direct) | View |
2025-04-15 Tax Withholding | 2025-04-17 4:01 pm | N/A N/A | Quanterix Corp | QTRX | Toloue Masoud President & CEO | 1,242 | $5.16 | 474,772 (Direct) | View |
2025-04-01 Option Award | 2025-04-03 4:15 pm | N/A N/A | Quanterix Corp | QTRX | WALT DAVID R Director | 2,156 | $6.665 | 1,496,933 (Direct) | View |
2025-04-01 Option Award | 2025-04-03 4:14 pm | N/A N/A | Quanterix Corp | QTRX | MEISTER PAUL M Director | 2,479 | $6.665 | 307,037 (Direct) | View |
2025-04-01 Option Award | 2025-04-03 4:14 pm | N/A N/A | Quanterix Corp | QTRX | Hlavinka Sarah E. Director | 2,625 | $6.665 | 57,455 (Direct) | View |