RTW INVESTMENTS, LP
Top Portfolio Positions
87 positions ·
$10,049,745,359 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 | 10.38% | |
| INSM |
INSMED Inc
Healthcare
|
4,842,880 | $791,907,737 | 7.88% | |
| PTGX |
Protagonist Therapeutics, Inc
Healthcare
|
5,059,053 | $533,224,186 | 5.31% | |
| PTCT |
Ptc Therapeutics, Inc.
Healthcare
|
7,746,415 | $527,763,253 | 5.25% | |
| ARGX |
Argenx SE
Healthcare
|
709,446 | $518,072,941 | 5.16% | |
| CGON |
CG Oncology, Inc.
Healthcare
|
6,984,808 | $472,731,805 | 4.70% | |
| CELC |
Celcuity Inc.
Healthcare
|
3,039,621 | $346,942,340 | 3.45% | |
| TNGX |
Tango Therapeutics, Inc.
Healthcare
|
13,300,620 | $278,248,970 | 2.77% | |
| ERAS |
Erasca, Inc.
Healthcare
|
16,157,175 | $261,423,091 | 2.60% | |
| NTRA |
Natera, Inc.
Healthcare
|
1,250,000 | $249,987,500 | 2.49% |
Portfolio Trend
Holdings in OBIO
Shares Held
Position Value (USD)
13 of 13 shown
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $35,300,767 | 8,306,063 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $34,470,161 | 8,306,063 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $20,599,036 | 8,306,063 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $22,260,246 | 8,306,062 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $35,122,373 | 8,206,162 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $32,824,648 | 8,206,162 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $42,179,657 | 8,206,159 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $45,808,216 | 5,620,640 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $29,620,772 | 5,620,640 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $51,316,443 | 5,620,640 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $49,011,980 | 5,620,640 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $39,344,480 | 5,620,640 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $100,169,181 | 5,118,507 | Shares | Sole | 2023-05-15 | |
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