WALT DAVID R
SEC CIK 1205236 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| QTRX | Quanterix Corp | Dir | 1.87M | $4.04M | — | 13 | 2022-01-03 | 2026-01-02 |
Most active insiders at QTRX, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | DONNELLY WILLIAM P | Executive COB, Dir | $286.4K | — |
| 2 | Meadows Benjamin | Chief Commercial Off | $9,695 | — |
| 3 | Miller Michael Francis | CTO | — | — |
| 4 | Sachs Alan Bruce | Dir | — | — |
| 5 | Sriram Vandana | CFO | — | — |
| 6 | Toloue Masoud | Pres, CEO, Dir | — | — |
| 7 | Hampton Malcolm Garret | Dir | — | — |
| 8 | Elliott Jeffrey Thomas | Dir | — | — |
| 9 | Flynn Karen | Dir | — | — |
| 10 | Mendel Scott | Dir | — | — |
| 12 | WALT DAVID R | Dir | — | — |
Transactions 13
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-01-06 | 2026-01-02 | QTRX | Quanterix Corp | WALT DAVID R | Dir | A - Grant | $0.00 | +1,215 | 1.87M | +0.1% | $0 | |
| 2025-10-03 | 2025-10-01 | QTRX | Quanterix Corp | WALT DAVID R | Dir | A - Grant | $5.54 | +2,594 | 1.87M | +0.1% | +$14.4K | |
| 2025-07-02 | 2025-07-01 | QTRX | Quanterix Corp | WALT DAVID R | Dir | A - Grant | $6.69 | +2,148 | 1.87M | +0.1% | +$14.4K | |
| M | 2025-06-13 | 2025-06-12+ | QTRX | Quanterix Corp | WALT DAVID R | Dir | P - Purchase | $6.16 | +160.0K | 1.87M | +9% | +$985.6K |
| M | 2025-06-09 | 2025-06-06+ | QTRX | Quanterix Corp | WALT DAVID R | Dir | P - Purchase | $5.40 | +210.0K | 1.71M | +14% | +$1.13M |
| 2025-04-03 | 2025-04-01 | QTRX | Quanterix Corp | WALT DAVID R | Dir | A - Grant | $6.67 | +2,156 | 1.50M | +0.1% | +$14.4K | |
| D | 2025-01-06 | 2025-01-02 | QTRX | Quanterix Corp | WALT DAVID R | Dir | A - Grant | $0.00 | +7,435 | 1.49M | +0.5% | $0 |
| 2024-09-17 | 2024-08-20 | QTRX | Quanterix Corp | WALT DAVID R | Dir | P - Purchase | $13.29 | +47.0K | 1.49M | +3% | +$624.6K | |
| M | 2024-09-17 | 2022-10-12+ | QTRX | Quanterix Corp | WALT DAVID R | Dir | G - Gift | $0.00 | -2,000 | 1.44M | -0.1% | $0 |
| D | 2024-01-04 | 2024-01-02 | QTRX | Quanterix Corp | WALT DAVID R | Dir | A - Grant | $0.00 | +2,947 | 1.44M | +0.2% | $0 |
| D | 2023-01-04 | 2023-01-03 | QTRX | Quanterix Corp | WALT DAVID R | Dir | A - Grant | $0.00 | +8,083 | 1.44M | +0.6% | $0 |
| 2022-08-10 | 2022-08-10 | QTRX | Quanterix Corp | WALT DAVID R | Dir | P - Purchase | $8.62 | +150.0K | 1.43M | +12% | +$1.29M | |
| D | 2022-01-05 | 2022-01-03 | QTRX | Quanterix Corp | WALT DAVID R | Dir | A - Grant | $0.00 | +2,668 | 1.28M | +0.2% | $0 |
Purchase Sale Sale after option exercise All abbreviations