Rock Springs Capital Management LP

CIK
1595725
City
Baltimore
State / Country
MD

Top Portfolio Positions

98 positions · $1,690,777,301 total · as of Mar 31, 2026
Ticker Company Shares Value (USD) % of Portfolio
RVMD
Revolution Medicines, Inc.
Healthcare
1,209,465 $117,620,471 6.96%
LLY
ELI LILLY & Co
Healthcare
98,700 $90,781,299 5.37%
MDGL
Madrigal Pharmaceuticals, Inc.
Healthcare
170,999 $89,512,846 5.29%
MIRM
Mirum Pharmaceuticals, Inc.
Healthcare
811,294 $74,947,339 4.43%
ARGX
Argenx Se
Healthcare
98,500 $71,929,625 4.25%
RYTM
Rhythm Pharmaceuticals, Inc.
Healthcare
689,748 $59,987,383 3.55%
INSM
INSMED Inc
Healthcare
314,300 $51,394,336 3.04%
ASND
Ascendis Pharma A/S
Healthcare
194,000 $44,373,620 2.62%
XENE
Xenon Pharmaceuticals Inc.
Healthcare
763,020 $44,369,613 2.62%
TVTX
Travere Therapeutics, Inc.
Healthcare
1,477,954 $43,910,013 2.60%

Portfolio Trend

25 quarters · across all stocks

Holdings in OMDA

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Shares Held

Position Value (USD)

4 of 4 shown
Report Date Value (USD) Shares
2026-03-31 $6,800,370 541,000
2025-12-31 $11,677,200 740,000
2025-09-30 $20,340,094 919,950
2025-06-30 $16,835,103 919,951