Quick Takeaways
- Third Rock Ventures IV, L.P. filed SCHEDULE 13G/A for Maze Therapeutics, Inc. Common Stock, $0.001 par value per share (MAZE).
- Disclosed ownership: 9.3%.
- Date of event: 31 Dec 2025.
Third Rock Ventures IV, L.P. - 31 Dec 2025 SCHEDULE 13G/A Report for Maze Therapeutics, Inc. Common Stock, $0.001 par value per share (MAZE)
- Filing Manager
- Third Rock Ventures IV, L.P.
- Reporting Manager
- Third Rock Ventures IV, L.P.
- Symbol
- MAZE
- Shares outstanding
- 48,107,075 shares
- Disclosed Ownership
- 4,473,958 shares
- Ownership
- 9.3%
- Form type
- SCHEDULE 13G/A
- Filing time
- 13 Feb 2026, 17:25:23 UTC
- Date of event
- 31 Dec 2025
- Previous filing
- 09 May 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"Third Rock Ventures IV, L.P. disclosed 9.3% ownership in Maze Therapeutics, Inc. Common Stock, $0.001 par value per share (MAZE) on 31 Dec 2025."
What Changed
- Previous schedule filing date: 09 May 2025.
- Current filing was accepted on 13 Feb 2026, 17:25.
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 (6)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Third Rock Ventures IV, L.P. | 9.3% | 4,473,958 | 0 | 4,473,958 | /s/ Kevin Gillis | Kevin Gillis, COO of TRV GP IV, LLC, general partner of Third Rock Ventures GP IV, L.P., general partner of Third Rock Ventures IV, L.P. | |
| Third Rock Ventures GP IV, L.P. | 9.3% | 4,473,958 | 0 | 4,473,958 | /s/ Kevin Gillis | Kevin Gillis, Chief Operating Officer of TRV GP IV, LLC, general partner of Third Rock Ventures GP IV, L.P | |
| TRV GP IV, LLC | 9.3% | 4,473,958 | 0 | 4,473,958 | /s/ Kevin Gillis | Kevin Gillis, Chief Operating Officer of TRV GP IV, LLC | |
| Third Rock Ventures V, L.P. | 2% | 950,800 | 0 | 950,800 | /s/ Kevin Gillis | Kevin Gillis, COO of TRV GP V, LLC, general partner of Third Rock Ventures GP V, L.P., general partner of Third Rock Ventures V, L.P. | |
| Third Rock Ventures GP V, L.P. | 2% | 950,800 | 0 | 950,800 | /s/ Kevin Gillis | Kevin Gillis, Chief Operating Officer of TRV GP V, LLC, general partner of Third Rock Ventures GP V, L.P. | |
| TRV GP V, LLC | 2% | 950,800 | 0 | 950,800 | /s/ Kevin Gillis | Kevin Gillis, Chief Operating Officer of TRV GP V, LLC |