Insiders / Third Rock Ventures V, L.P.
Third Rock Ventures V, L.P.
CIK 1778071personinsiderbeneficial owner
Companies
4
First seen
Nov 9, 2023
Last activity
Aug 14, 2026
Companies
| Company | Shares held | Latest |
|---|---|---|
| Septerna, Inc. · SEPN | 13,432,506 | — |
| Rapport Therapeutics, Inc. · RAPP | 7,249,743 | — |
| CARGO Therapeutics, Inc. · CRGX | 3,544,335 | — |
| Maze Therapeutics, Inc. · MAZE | — | — |
All securities held
3 positions · latest reported per filing
Shares
| Company | Security | Shares |
|---|---|---|
| CARGO Therapeutics, Inc. | Common stock | 3,544,335 |
| Rapport Therapeutics, Inc. | Common stock | 7,249,743 |
| Septerna, Inc. | Common stock | 13,432,506 |
Ownership percentages elsewhere on the site count common and ordinary shares only, because that is what shares outstanding are measured in. Everything above is a real holding; not all of it is a share of the company.
Activity
InsidersInstitutions
This person's trades in company stock, across every company.| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Nov 14, 2023 | Buy Open-market buy | CRGX CARGO Therapeutics, Inc. Common Stock | $20.00M | +1.3M +281.42% | 1,807,119 | high |
| Apr 17, 2026 | Sell Open-market sale | RAPP Rapport Therapeutics, Inc. Common Stock | $17.18M | -426K -5.97% | 6,709,228 13.98% of shares | medium |
| May 7, 2026 | Sell Open-market sale | RAPP Rapport Therapeutics, Inc. Common Stock |