RTW INVESTMENTS, LP

CIK
1493215
City
NEW YORK
State / Country
NY

Top Portfolio Positions

87 positions · $10,049,745,359 total · as of Mar 31, 2026
Ticker Company Shares Value (USD) % of Portfolio
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

25 quarters · across all stocks

Holdings in ALKS

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Shares Held

Position Value (USD)

11 of 11 shown
Report Date Value (USD) Shares
2026-03-31 $59,134,508 1,672,356
2025-12-31 $46,792,520 1,672,356
2025-09-30 $50,170,680 1,672,356
2025-06-30 $133,960,288 4,682,289
2025-03-31 $227,332,727 6,884,698
2024-12-31 $217,363,334 7,557,835
2024-09-30 $186,246,383 6,654,033
2024-06-30 $170,073,410 7,056,988
2024-03-31 $163,889,359 6,054,280
2023-12-31 $108,228,248 3,901,523
2023-09-30 $24,902,934 889,073