TRV GP IV, LLC portfolio
Latest available portfolio: Q2 2026 · Holdings as of · Filed · $253,684,290 in Form 13F holdings
See latest portfolio changesQuarterly portfolio filings
Choose a quarter to see holdings and changes. Newer portfolio dates appear first.
Estimated additions and reductions value share changes at filing-derived prices; they are not actual trade proceeds or costs.
| Quarter | Holdings | SEC-reported value | Est. additions | Est. reductions | Est. net | Top Holdings | Form Type | Accepted by SEC |
|---|---|---|---|---|---|---|---|---|
| Q2 2026 | 2 | $253,684,290 | $0 | $0 | $0 | MAZE, TNGX | 13F-HR | 07 Aug 2026, 19:38 |
| Q1 2026 | 2 | $266,903,734 | $0 | -$31,380,000 | -$31,380,000 | MAZE, TNGX | 13F-HR | 07 May 2026, 16:16 |
| Q4 2025 | 2 | $255,124,806 | $0 | -$119,354,093 | -$119,354,093 | MAZE, TNGX | 13F-HR | 13 Feb 2026, 17:23 |
| Q3 2025 | 2 | $273,955,121 | $0 | -$27,632,966 | -$27,632,966 | MAZE, TNGX | 13F-HR | 13 Nov 2025, 16:15 |
| Q2 2025 | 3 | $163,320,055 | $0 | $0 | $0 | TNGX, MAZE, PLRX | 13F-HR | 08 Aug 2025, 16:15 |
| Q1 2025 | 3 | $92,850,581 | +$66,874,278 | $0 | +$66,874,278 | MAZE, TNGX, PLRX | 13F-HR | 09 May 2025, 16:15 |
| Q4 2024 | 2 | $80,184,400 | $0 | -$8,365,060 | -$8,365,060 | TNGX, PLRX | 13F-HR | 13 Feb 2025, 16:15 |
| Q3 2024 | 3 | $162,089,377 | $0 | -$18,036,480 | -$18,036,480 | TNGX, PLRX, FULC | 13F-HR | 06 Nov 2024, 16:30 |
| Q2 2024 | 3 | $202,204,531 | $0 | $0 | $0 | TNGX, PLRX, FULC | 13F-HR | 09 Aug 2024, 16:16 |
| Q1 2024 | 3 | $206,358,804 | $0 | -$1,290,250 | -$1,290,250 | TNGX, PLRX, FULC | 13F-HR | 13 May 2024, 16:15 |
| Q4 2023 | 3 | $246,145,864 | $0 | $0 | $0 | TNGX, PLRX, FULC | 13F-HR | 14 Feb 2024, 16:16 |
| Q3 2023 | 3 | $265,425,877 | $0 | $0 | $0 | TNGX, PLRX, FULC | 13F-HR | 13 Nov 2023, 16:15 |
| Q2 2023 | 3 | $110,668,355 | $0 | $0 | $0 | TNGX, PLRX, FULC | 13F-HR | 10 Aug 2023, 16:06 |
| Q1 2023 | 3 | $139,899,952 | $0 | -$36,491,509 | -$36,491,509 | TNGX, PLRX, FULC | 13F-HR | 12 May 2023, 16:15 |
| Q4 2022 | 5 | $235,166,808 | $0 | $0 | $0 | TNGX, PLRX, RVMD, FULC, MGTA | 13F-HR | 14 Feb 2023, 16:00 |
| Q3 2022 | 5 | $171,139,000 | $0 | $0 | $0 | TNGX, PLRX, RVMD, FULC, MGTA | 13F-HR | 03 Nov 2022, 16:55 |
| Q2 2022 | 5 | $152,068,000 | $0 | $0 | $0 | TNGX, RVMD, PLRX, FULC, MGTA | 13F-HR | 12 Aug 2022, 16:16 |
| Q1 2022 | 5 | $272,967,000 | $0 | $0 | $0 | TNGX, FULC, RVMD, MGTA, PLRX | 13F-HR | 10 May 2022, 16:19 |
| Q4 2021 | 5 | $347,764,000 | $0 | $0 | $0 | TNGX, FULC, RVMD, MGTA, PLRX | 13F-HR | 14 Feb 2022, 08:09 |
| Q3 2021 | 5 | $440,740,000 | +$250,376,000 | -$9,100,051 | +$241,275,949 | TNGX, FULC, MGTA, RVMD, PLRX | 13F-HR | 05 Nov 2021, 16:41 |
| Q2 2021 | 4 | $210,053,000 | $0 | $0 | $0 | MGTA, PLRX, RVMD, FULC | 13F-HR | 11 Aug 2021, 17:02 |
| Q1 2021 | 4 | $271,450,000 | $0 | -$116,833,000 | -$116,833,000 | MGTA, PLRX, RVMD, FULC | 13F-HR | 12 May 2021, 16:51 |
| Q4 2020 | 5 | $311,728,000 | $0 | $0 | $0 | RLAY, MGTA, RVMD, PLRX, FULC | 13F-HR | 16 Feb 2021, 06:51 |
| Q3 2020 | 5 | $290,488,000 | +$119,729,000 | $0 | +$119,729,000 | RLAY, MGTA, RVMD, PLRX, FULC | 13F-HR | 06 Nov 2020, 16:31 |
| Q2 2020 | 4 | $217,057,000 | +$69,233,000 | $0 | +$69,233,000 | PLRX, MGTA, RVMD, FULC | 13F-HR | 07 Aug 2020, 19:02 |
Showing 1-25 of 31 filings.
Manager details and filing context
- Latest 13F filing
- Q2 2026 - 10 Aug 2026
- Latest reported 13F value
- $253,684,290
- Largest 13F holdings
-
MAZE TNGX
- Form 13F summary
-
- TRV GP IV, LLC Form 13F history summarizes parsed U.S.-listed equity disclosures for this manager.
- Form 13F is generally due within 45 days after each calendar quarter ends.
- TRV GP IV, LLC reported 2 equity holdings with a total reported market value of $253,684,290 for Q2 2026.
- Manager signature
- Kevin Gillis - Chief Operating Officer
- Manager location
- Boston, MA
13F snapshot
Latest parsed holdings, value, and filing-period context.
1 signal
Manager
Names, identifiers, and filing context for this profile.
2 identity fields
Holdings Value