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 MDGL

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Shares Held

Position Value (USD)

12 of 12 shown
Report Date Value (USD) Shares
2026-03-31 $1,043,635,333 1,993,687
2025-12-31 $1,161,003,687 1,993,687
2025-09-30 $914,424,479 1,993,687
2025-06-30 $603,369,433 1,993,687
2025-03-31 $660,368,945 1,993,687
2024-12-31 $615,191,997 1,993,687
2024-09-30 $423,100,255 1,993,687
2024-06-30 $536,747,897 1,915,862
2024-03-31 $106,027,430 397,047
2023-12-31 $188,618,893 815,191
2023-09-30 $45,197,189 309,485
2023-06-30 $51,180,822 221,562