Quick Takeaways
- Third Rock Ventures IV, L.P. filed SCHEDULE 13D/A for Tango Therapeutics, Inc. Common Stock (TNGX).
- Disclosed ownership: 5.8%.
- Date of event: 19 Nov 2025.
Third Rock Ventures IV, L.P. - 19 Nov 2025 SCHEDULE 13D/A Report for Tango Therapeutics, Inc. Common Stock (TNGX)
- Filing Manager
- Third Rock Ventures IV, L.P.
- Reporting Manager
- Third Rock Ventures IV, L.P.
- Symbol
- TNGX
- Shares outstanding
- 134,608,103 shares
- Disclosed Ownership
- 7,874,574 shares
- Ownership
- 5.8%
- Form type
- SCHEDULE 13D/A
- Filing time
- 21 Nov 2025, 16:15:02 UTC
- Date of event
- 19 Nov 2025
- Previous filing
- 14 Nov 2025
- Next filing
- 10 Feb 2026
- SEC
- View on sec.gov
Quoteable Key Fact
"Third Rock Ventures IV, L.P. disclosed 5.8% ownership in Tango Therapeutics, Inc. Common Stock (TNGX) on 19 Nov 2025."
What Changed
- Previous schedule filing date: 14 Nov 2025.
- Current filing was accepted on 21 Nov 2025, 16:15.
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.
Official SEC Source
Backed by Schedule 13D/13G
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
See Original FilingReporting Managers (3)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Third Rock Ventures IV, L.P. | 5.8% | 7,874,574 | 0 | 7,874,574 | /s/ Kevin Gillis | Kevin Gillis, COO of TRV GP IV, LLC, the general partner of Third Rock Ventures GP IV, L.P., the general partner of Third Rock Ventures IV, L.P. | 0001688327 |
| Third Rock Ventures GP IV, L.P. | 5.8% | 7,874,574 | 0 | 7,874,574 | /s/ Kevin Gillis | Kevin Gillis, COO of TRV GP IV, LLC, the general partner of Third Rock Ventures GP IV, L.P. | 0001688326 |
| TRV GP IV, LLC | 5.8% | 7,874,574 | 0 | 7,874,574 | /s/ Kevin Gillis | Kevin Gillis, COO | 0001688325 |