🕵️ Rapport Therapeutics, Inc. ($RAPP)
SEC insider & ownership activity, last 12 months · CIK 2012593 · every row links its SEC filing
Over the last 12 months insiders sold $43.3M against $1.6M of open-market buying. Third Rock Ventures V, L.P. sold $34.4M through a 10b5-1 trading plan in 5 lots (Apr–May). No red-flag 8-Ks in the window.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
3 buyers, $1.6M (4 lots) · 5 sellers, $43.3M (67 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Third Rock Ventures V, L.P. | 0 | – | 5 | $34.4M | May 26, 2026 |
| Ceesay Abraham | 0 | – | 30 | $4.2M | Jul 27, 2026 |
| Krishnaswamy Yeleswaram | 0 | – | 7 | $1.9M | Apr 17, 2026 |
| David Bredt | 0 | – | 16 | $1.7M | Feb 17, 2026 |
| Gault Cheryl | 0 | – | 9 | $1.1M | Jun 30, 2026 |
| Steven M. Paul | 2 | $1.0M | 0 | – | Sep 12, 2025 |
| Reid M. Huber | 1 | $499K | 0 | – | Sep 12, 2025 |
| Wendy B. Young | 1 | $79K | 0 | – | Sep 11, 2025 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Third Rock Ventures V, L.P. | 19.5% | 13G | Feb 13, 2025 | filing ↗ | |
| Third Rock Ventures GP V, L.P. | 19.5% | 13G | Feb 13, 2025 | filing ↗ | |
| TRV GP V, LLC | 19.5% | 13G | Feb 13, 2025 | filing ↗ | |
| Cormorant Asset Management, LP | 6.2% | 13G | May 15, 2026 | filing ↗ | |
| Bihua Chen | 6.2% | 13G | May 15, 2026 | filing ↗ | |
| Blackrock, Inc. | 5.0% | 13G | Jan 21, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Cheryl Gault | $404K | Jun 30, 2026 | filing ↗ |
| Abraham N. Ceesay | $4.0M | Jun 29, 2026 | filing ↗ |
| Third Rock Ventures V, L.P. | $743K | May 26, 2026 | filing ↗ |
| Third Rock Ventures V, L.P. | $5.4M | May 11, 2026 | filing ↗ |
| Third Rock Ventures V, L.P. | $202K | May 8, 2026 | filing ↗ |
| Third Rock Ventures V, L.P. | $10.9M | May 7, 2026 | filing ↗ |
| Third Rock Ventures V, L.P. | $17.2M | Apr 17, 2026 | filing ↗ |
| Krishnaswamy Yeleswaram | $800K | Apr 17, 2026 | filing ↗ |
| Krishnaswamy Yeleswaram | $662K | Apr 13, 2026 | filing ↗ |
| Krishnaswamy Yeleswaram | $17K | Apr 10, 2026 | filing ↗ |
| Krishnaswamy Yeleswaram | $12K | Apr 8, 2026 | filing ↗ |
| Cheryl Gault | $278K | Mar 30, 2026 | filing ↗ |
| Krishnaswamy Yeleswaram | $286K | Mar 25, 2026 | filing ↗ |
| Gault Cheryl | $58K | Mar 5, 2026 | filing ↗ |
| David Bredt | $466K | Jan 15, 2026 | filing ↗ |
| David Bredt | $197K | Jan 2, 2026 | filing ↗ |
| Krishnaswamy Yeleswaram | $85K | Jan 2, 2026 | filing ↗ |
| The Dorothy Ceesay Irrevocable Trust | $469K | Dec 17, 2025 | filing ↗ |
| Abraham Ceesay | $538K | Dec 17, 2025 | filing ↗ |
| David Bredt | $634K | Oct 15, 2025 | filing ↗ |
| Abraham Ceesay | $1.4M | Sep 17, 2025 | filing ↗ |
| The Dorothy Ceesay Irrev Trust U/ADTD 03/27/2024 | $1.2M | Sep 17, 2025 | filing ↗ |
| Cheryl Gault | $144K | Sep 8, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Shareholder vote (5.07) | Jun 10, 2026 | filing ↗ |
| Earnings (2.02) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 21, 2026 | filing ↗ |
| Other events (8.01) | Apr 21, 2026 | filing ↗ |
| Earnings (2.02) | Mar 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 10, 2026 | filing ↗ |
| Other events (8.01) | Jan 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 7, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jan 7, 2026 | filing ↗ |
| Other events (8.01) | Jan 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 7, 2026 | filing ↗ |
| Earnings (2.02) | Nov 6, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 6, 2025 | filing ↗ |
| Material agreement (1.01) | Sep 9, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 9, 2025 | filing ↗ |
| Other events (8.01) | Sep 8, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 8, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Sep 8, 2025 | filing ↗ |
| Other events (8.01) | Sep 8, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 8, 2025 | filing ↗ |
| Earnings (2.02) | Aug 7, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Aug 7, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 7, 2025 | filing ↗ |