Quanterix Corp - QTRX
Ownership (Schedule 13D / 13G) · latest 50 filings
· Back to all files
Visible: 0
| Filed | Form | Reporting person | Percent | Shares | SEC |
|---|---|---|---|---|---|
| May 15, 2026 | SCHEDULE 13G/A | Portolan Capital Management, LLC | 6.25% | 2,945,823 | View |
| May 15, 2026 | SCHEDULE 13G/A | George McCabe | 6.25% | 2,945,823 | View |
| May 15, 2026 | SCHEDULE 13G/A | Ameriprise Financial, Inc. | 7.5% | 3,542,374 | View |
| May 07, 2026 | SCHEDULE 13G/A | Ameriprise Financial, Inc. | 2.1% | 990,224 | View |
| Mar 27, 2026 | SCHEDULE 13G/A | The Vanguard Group | 0.0% | 0 | View |
| Feb 17, 2026 | SCHEDULE 13G/A | Ameriprise Financial, Inc. | 10.7% | 4,996,073 | View |
| Feb 17, 2026 | SCHEDULE 13G/A | TAM UK International Holdings Limited | 6.7% | 3,122,967 | View |
| Feb 17, 2026 | SCHEDULE 13G/A | Threadneedle Holdings Limited | 2.6% | 1,228,954 | View |
| Feb 17, 2026 | SCHEDULE 13G/A | TAM UK Holdings Limited | 2.6% | 1,228,954 | View |
| Feb 17, 2026 | SCHEDULE 13G/A | Threadneedle Asset Management Holdings Limited | 2.6% | 1,228,954 | View |
| Feb 17, 2026 | SCHEDULE 13G/A | TC Financing Ltd | 2.6% | 1,228,954 | View |
| Feb 17, 2026 | SCHEDULE 13G/A | Threadneedle Asset Management Limited | 2.6% | 1,228,954 | View |
| Feb 17, 2026 | SCHEDULE 13G/A | Threadneedle Investment Services Limited | 2.6% | 1,228,954 | View |
| Feb 17, 2026 | SCHEDULE 13G/A | Threadneedle Management Luxembourg S.A. | 4.1% | 1,894,013 | View |
Percent = "% of class represented by amount beneficially owned" for this reporting person in the filed 13D/13G.
Shares = reported beneficial ownership amount for the same row (not portfolio shares from 13F).
Amendments (/A) can repeat the same holder over time, so rows should not be summed.
Extraction is best-effort from filing text and can be missing or noisy; verify exact figures via the SEC link in each row.