VANGUARD GROUP INC 13D and 13G filings for Quanterix Corporation:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2026-03-27 11:35 am Sale | 2026-03-13 | 13G | QUANTERIX CORP COM QTRX | VANGUARD GROUP INC | 0 0.000% | -2,525,679![]() (Position Closed) | Filing |
| 2025-04-30 11:13 am Purchase | 2025-03-31 | 13G | QUANTERIX CORP COM QTRX | VANGUARD GROUP INC | 2,525,679 6.510% | 470,646![]() (+22.90%) | Filing |
| 2024-02-13 5:12 pm Purchase | 2023-12-29 | 13G | QUANTERIX CORP COM QTRX | VANGUARD GROUP INC | 2,055,033 5.430% | 2,055,033![]() (New Position) | Filing |

