Institutions / RTW Investments, LP
RTW Investments, LP
CIK 1493215 · Institution · as of Dec 31, 2025
Portfolio value
$9.98B
Positions
91
As of
Dec 31, 2025
Top holdings
Dec 31, 2025View all 91 →
| Company | Value | % of portfolio |
|---|---|---|
| Madrigal Pharmaceuticals, Inc. | $1.16B | 11.6% |
| Insmed Inc | $842.85M | 8.4% |
| PTC Therapeutics Inc | $588.42M | 5.9% |
| Argenx SE | $566.38M | 5.7% |
| Protagonist Therapeutics Inc | $441.86M | 4.4% |
| Natera, Inc. | $343.63M | 3.4% |
| RadNet, Inc. | $281.01M | 2.8% |
| Tarsus Pharmaceuticals, Inc. | $273.10M | 2.7% |
| Cogent Biosciences, Inc. | $269.68M | 2.7% |
| Penumbra Inc | $269.40M | 2.7% |
| iRhythm Holdings, Inc. | $209.73M | 2.1% |
| Apogee Therapeutics, Inc. | $204.71M | 2.1% |
| Apellis Pharmaceuticals, Inc. | $192.59M | 1.9% |
| ACADIA Pharmaceuticals Inc | $190.83M | 1.9% |
| Establishment Labs Holdings Inc. | $188.67M | 1.9% |
| Stoke Therapeutics, Inc. | $176.06M | 1.8% |
| Repligen Corp | $174.35M | 1.7% |
| Cytokinetics Inc | $172.90M | 1.7% |
| Immunocore Holdings Plc-AdrIMCR | $169.03M | 1.7% |
| Axsome Therapeutics, Inc. | $162.18M | 1.6% |
| Guardant Health, Inc. | $151.27M | 1.5% |
| Neurocrine Biosciences Inc | $150.63M | 1.5% |
| Spyre Therapeutics, Inc. | $136.67M | 1.4% |
| Zai Lab Limited | $122.76M | 1.2% |
| Immatics N.V | $120.05M | 1.2% |
Activity
Dec 31, 2025
InsidersInstitutions
This fund's 13F position changes — what it's buying and selling.No quarter-over-quarter changes yet — position changes appear once we've ingested two consecutive 13F filings for this manager. We currently hold 1 quarter of holdings.