Filer Name: ROCK SPRINGS CAPITAL MANAGEMENT LP
CIK: 1595725
Period: 2024-12-31
Filed At: 2025-02-14
Number of Holdings: 107
Portfolio Value: $2.63B

Rock Springs Capital Management Lp Top Holdings

Ticker Exchange Security Shares Value % of Portfolio Position Change Put/Call
ARGX US ARGENX SE - ADR 229,600 $141M 5.38% -1.7% -
ISRG US INTUITIVE SURGICAL INC 216,000 $113M 4.29% -20.0% -
LLY US ELI LILLY & CO 144,500 $112M 4.25% 1.8% -
NBIX US NEUROCRINE BIOSCIENCES INC 720,500 $98M 3.74% -23.3% -
BPMC US BLUEPRINT MEDICINES CORP 1,096,899 $96M 3.64% 42.7% -
UNH US UNITEDHEALTH GROUP INC 176,000 $89M 3.39% -40.2% -
TVTX US TRAVERE THERAPEUTICS INC 4,973,649 $87M 3.30% 6.2% -
MDGL US MADRIGAL PHARMACEUTICALS INC 265,212 $82M 3.12% 0.8% -
RARE US ULTRAGENYX PHARMACEUTICAL IN 1,739,813 $73M 2.79% -12.1% -
RYTM US RHYTHM PHARMACEUTICALS INC 1,162,718 $65M 2.48% -5.3% -
MIRM US MIRUM PHARMACEUTICALS INC 1,471,564 $61M 2.32% -6.9% -
ALNY US ALNYLAM PHARMACEUTICALS INC 256,200 $60M 2.30% 2.5% -
PEN US PENUMBRA INC 240,000 $57M 2.17% -9.4% -
WST US WEST PHARMACEUTICAL SERVICES 168,750 $55M 2.10% 0.6% -
RVMD US REVOLUTION MEDICINES INC 1,213,257 $53M 2.02% 20.1% -
PHR US PHREESIA INC 2,040,000 $51M 1.95% -10.6% -
XENE US XENON PHARMACEUTICALS INC 1,251,859 $49M 1.87% -4.9% -
FRPT US FRESHPET INC 327,500 $49M 1.85% -26.7% -
ASND US ASCENDIS PHARMA A/S - ADR 305,000 $42M 1.60% -6.2% -
KYMR US KYMERA THERAPEUTICS INC 1,034,137 $42M 1.58% -1.5% -
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