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Rock Springs Capital Management LP

Portfolio Manager
Rock Springs Capital Management LP
Performance
-6.61% (2026 Q1)
AUM (13F)
$1.70B
# of Holdings
100
Performance Rank
Allocation (Top 20)
60.31%

Rock Springs Capital Management LP Holdings Map

Top 50 Rock Springs Capital Management LP Holdings

Top 10 holdings

StockCompany% Port.SharesValueActivityOwnershipAvg. CostDate
RVMD
REVOLUTION MEDICINES INC
6.93%1.21M$117.6M
-9.42%(-125.81K)
2025-Q1: 1.28M shares2025-Q2: 1.33M shares2025-Q3: 1.34M shares2025-Q4: 1.34M shares2026-Q1: 1.21M shares
$29.89(+533.17%)
2026-03-31
LLY
ELI LILLY & CO
5.35%98.7K$90.8M
-6.36%(-6.70K)
2025-Q1: 113.5K shares2025-Q2: 116.5K shares2025-Q3: 105.4K shares2025-Q4: 105.4K shares2026-Q1: 98.7K shares
$679.21(+78.72%)
2026-03-31
MDGL
MADRIGAL PHARMACEUTICALS INC
5.28%171.0K$89.5M
+22.48%(+31.38K)
2025-Q1: 166.7K shares2025-Q2: 140.3K shares2025-Q3: 137.7K shares2025-Q4: 139.6K shares2026-Q1: 171.0K shares
$215.40(+145.17%)
2026-03-31
MIRM
MIRUM PHARMACEUTICALS INC
4.42%811.3K$74.9M
+6.43%(+49.00K)
2025-Q1: 951.8K shares2025-Q2: 818.2K shares2025-Q3: 761.1K shares2025-Q4: 762.3K shares2026-Q1: 811.3K shares
$19.44(+545.89%)
2026-03-31
ARGX
ARGENX SE
4.24%98.5K$71.9M
-4.60%(-4.75K)
2025-Q1: 175.8K shares2025-Q2: 175.8K shares2025-Q3: 142.8K shares2025-Q4: 103.3K shares2026-Q1: 98.5K shares
$150.83(+523.00%)
2026-03-31
RYTM
RHYTHM PHARMACEUTICALS INC
3.54%689.7K$60.0M
-0.76%(-5.26K)
2025-Q1: 834.2K shares2025-Q2: 861.2K shares2025-Q3: 717.1K shares2025-Q4: 695.0K shares2026-Q1: 689.7K shares
$18.12(+530.03%)
2026-03-31
INSM
INSMED INC
3.03%314.3K$51.4M
-1.55%(-4.95K)
2025-Q1: 515.9K shares2025-Q2: 525.0K shares2025-Q3: 385.0K shares2025-Q4: 319.3K shares2026-Q1: 314.3K shares
$47.80(+133.49%)
2026-03-31
ASND
ASCENDIS PHARMA A/S
2.62%194.0K$44.4M
-4.67%(-9.50K)
2025-Q1: 216.0K shares2025-Q2: 217.0K shares2025-Q3: 214.5K shares2025-Q4: 203.5K shares2026-Q1: 194.0K shares
$87.11(+215.13%)
2026-03-31
XENE
XENON PHARMACEUTICALS INC
2.62%763.0K$44.4M
-3.14%(-24.77K)
2025-Q1: 931.7K shares2025-Q2: 931.7K shares2025-Q3: 851.7K shares2025-Q4: 787.8K shares2026-Q1: 763.0K shares
$24.48(+149.00%)
2026-03-31
TVTX
TRAVERE THERAPEUTICS INC
2.59%1.48M$43.9M
-33.13%(-732.37K)
2025-Q1: 2.92M shares2025-Q2: 1.91M shares2025-Q3: 2.16M shares2025-Q4: 2.21M shares2026-Q1: 1.48M shares
$14.90(+281.89%)
2026-03-31

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