Third Rock Ventures GP VI, L.P. (CIK 1977499) reported 7 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-05-13). Recent activity: Sell RAPP (133,618 shares), Sell RAPP (271,495 shares), Sell RAPP (5,018 shares), Sell RAPP (426,005 shares), Buy SEPN (18,861 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-13 | Rapport Therapeutics, Inc. (RAPP) | Insider | Sell | 133,618 | $5.4M |
| 2026-05-11 | Rapport Therapeutics, Inc. (RAPP) | Insider | Sell | 271,495 | $10.9M |
| 2026-05-11 | Rapport Therapeutics, Inc. (RAPP) | Insider | Sell | 5,018 | $202,256 |
| 2026-04-21 | Rapport Therapeutics, Inc. (RAPP) | Insider | Sell | 426,005 | $17.2M |
| 2025-02-26 | Septerna, Inc. (SEPN) | Insider | Buy | 18,861 | $113,166 |
| 2025-02-24 | Septerna, Inc. (SEPN) | Insider | Buy | 612,674 | $3.6M |
| 2025-02-24 | Septerna, Inc. (SEPN) | Insider | Buy | 427,668 | $2.5M |
Source: SEC Form 4 filings · as of 2026-05-13