# TRV GP V, LLC: Form 13F holdings

An institutional investment manager in Boston, MA. SEC CIK 1990717.

- Quarter ended: 2026-06-30
- Filed: 2026-08-10
- Reported value: $498.2m
- Positions: 3 (3 lines in the filing's table; lines for the same security and option type are added together here)
- Compared with: the 13F for the quarter ended 2026-03-31
- Filing: https://www.sec.gov/Archives/edgar/data/1990717/000119312526340725/

## Holdings

As filed, largest first. Reported value is what the manager stated at the quarter end (Jun 30, 2026), in US dollars; it is filing data, not a price. Weight is the share of the total reported value.

| Issuer | Class | Reported value | Weight | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | ---: | --- | --- |
| [RAPPORT THERAPEUTICS, INC. (RAPP)](/companies/rapp.md) | COM | $261.7m | 52.5% | 6,280,525 |  | Reduced −854,708 |
| [SEPTERNA, INC. (SEPN)](/companies/sepn.md) | COM | $208.2m | 41.8% | 6,215,591 |  | Unchanged |
| [MAZE THERAPEUTICS, INC. (MAZE)](/companies/maze.md) | COM | $28.4m | 5.7% | 950,800 |  | Unchanged |

Source: SEC EDGAR, Form 13F-HR, accession 0001193125-26-340725. Last ingested by Listed: Oct 22, 2026, 05:26 ET. No prices; not investment advice.