Quick Takeaways
- Telegraph Hill Partners III, L.P. filed SCHEDULE 13G for Quanterix Corp Common Stock, par value $0.001 (QTRX).
- Disclosed ownership: 5.4%.
- Date of event: 30 Sep 2025.
Telegraph Hill Partners III, L.P. - 30 Sep 2025 SCHEDULE 13G Report for Quanterix Corp Common Stock, par value $0.001 (QTRX)
- Filing Manager
- Telegraph Hill Partners III, L.P.
- Reporting Manager
- Telegraph Hill Partners III, L.P.
- Symbol
- QTRX
- Shares outstanding
- 46,382,370 shares
- Disclosed Ownership
- 2,504,648 shares
- Ownership
- 5.4%
- Form type
- SCHEDULE 13G
- Filing time
- 19 Nov 2025, 16:00:08 UTC
- Date of event
- 30 Sep 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"Telegraph Hill Partners III, L.P. disclosed 5.4% ownership in Quanterix Corp Common Stock, par value $0.001 (QTRX) on 30 Sep 2025."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 19 Nov 2025, 16:00.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Source Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (4)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Telegraph Hill Partners III, L.P. | 5.4% | 2,504,648 | 0 | 2,504,648 | /s/ Rob Hart | Rob Hart/Partner, Telegraph Hill Partners III Investment Management, LLC, Its: General Partner, Telegraph Hill Partners Mgmt Company LLC, Its: Manager | |
| THP III Affiliates Fund, LLC | 5.4% | 2,504,648 | 0 | 2,504,648 | /s/ Rob Hart | Rob Hart/Partner, Telegraph Hill Partners III Investment Management, LLC, Its: Manager, Telegraph Hill Partners Management Company LLC, Its: Manager | |
| Telegraph Hill Partners III Investment Management, LLC | 5.4% | 2,504,648 | 0 | 2,504,648 | /s/ Rob Hart | Rob Hart/Partner, Telegraph Hill Partners Management Company LLC, Its: Manager | |
| Telegraph Hill Partners Management Company, LLC | 5.4% | 2,504,648 | 0 | 2,504,648 | /s/ Rob Hart | Rob Hart/Partner |