RTW INVESTMENTS, LP
Top Portfolio Positions
87 positions ·
$10,097,544,596 total
· as of Mar 31, 2026
| Ticker | Company | Shares | Value (USD) | % of Portfolio | Open |
|---|---|---|---|---|---|
| MDGL |
Madrigal Pharmaceuticals, Inc.
Healthcare
|
1,993,687 | $1,043,635,333 | 10.34% | |
| INSM |
INSMED Inc
Healthcare
|
4,842,880 | $791,907,737 | 7.84% | |
| PTGX |
Protagonist Therapeutics, Inc
Healthcare
|
5,059,053 | $533,224,186 | 5.28% | |
| PTCT |
Ptc Therapeutics, Inc.
Healthcare
|
7,746,415 | $527,763,253 | 5.23% | |
| ARGX |
Argenx SE
Healthcare
|
709,446 | $518,072,941 | 5.13% | |
| CGON |
CG Oncology, Inc.
Healthcare
|
6,984,808 | $472,731,805 | 4.68% | |
| CELC |
Celcuity Inc.
Healthcare
|
3,039,621 | $346,942,340 | 3.44% | |
| TNGX |
Tango Therapeutics, Inc.
Healthcare
|
13,300,620 | $278,248,970 | 2.76% | |
| ERAS |
Erasca, Inc.
Healthcare
|
16,157,175 | $261,423,091 | 2.59% | |
| NTRA |
Natera, Inc.
Healthcare
|
1,250,000 | $249,987,500 | 2.48% |
Portfolio Trend
25 quarters · across all stocks
Holdings in JBIO
Shares Held
Position Value (USD)
4 quarters on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $8,053,530 | 573,205 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $22,362,282 | 1,449,273 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $12,507,225 | 1,449,273 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $14,478,237 | 1,449,273 | Shares | Sole | 2025-08-14 | |
| No 13F history on record for this holder in this stock. | ||||||