Rapport Therapeutics, Inc. (RAPP) ownership: Entities affiliated with Third Rock Ventures 30% · institutions 107% · index and ETF funds 4% (13F 2026-06-30). Insider activity, 90 days: Routine (22 sales, 0 open-market buys). SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| FMR (Fidelity) | 7172894.00 | $298.89M | 15.0% | 2026-06-30 |
| TRV GP V, LLC | 6280525.00 | $261.71M | 13.1% | 2026-06-30 |
| ARCH Venture Management, LLC | 3728738.00 | $155.38M | 7.8% | 2026-06-30 |
| Capital Group | 3473615.00 | $144.75M | 7.2% | 2026-06-30 |
| Goldman Sachs | 2910449.00 | $121.28M | 6.1% | 2026-06-30 |
| BlackRock | 2699786.00 | $112.50M | 5.6% | 2026-06-30 |
| Cormorant Asset Management, LP | 2657521.00 | $110.74M | 5.5% | 2026-06-30 |
| Vanguard | 1957820.00 | $81.58M | 4.1% | 2026-06-30 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-09-08 | |
| Sell | null | 2026-09-08 | |
| Sell | null | 2026-08-25 | |
| Sell | null | 2026-08-24 | |
| Sell | null | 2026-08-24 | |
| Sell | null | 2026-08-24 | |
| Sell | null | 2026-08-19 | |
| Sell | null | 2026-08-10 |
Back to RAPP overview · RAPP earnings · All congressional trades
Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.