Rock Springs Capital Management LP 13F holdings, Q4 2024
Holdings as of December 31, 2024 · filings on SEC EDGAR · latest filing →
Rock Springs Capital Management LP disclosed 107 US equity positions worth $2.6bn in its Q4 2024 13F filing. The largest position was ARGX at 5.4% of the reported book, followed by ISRG and LLY. Against the Q3 2024 filing, it opened 2 new positions, added to 16 and reduced 25 among the top 50 holdings.
What did Rock Springs Capital Management LP own in Q4 2024? Top 50 positions
| # | Stock | Sector | Weight | Value | Shares | Δ shares | vs Q3 2024 |
|---|---|---|---|---|---|---|---|
| 1 | ARGX ARGENX SE | Healthcare | 5.4% | $141.2m | 229,600 | -2% | reduced |
| 2 | ISRG INTUITIVE SURGICAL INC | Healthcare | 4.3% | $112.7m | 216,000 | -20% | reduced |
| 3 | LLY ELI LILLY & CO | Healthcare | 4.2% | $111.6m | 144,500 | 2% | added |
| 4 | NBIX NEUROCRINE BIOSCIENCES INC | Healthcare | 3.7% | $98.3m | 720,500 | -23% | reduced |
| 5 | 2655787D BLUEPRINT MEDICINES CORP | 3.6% | $95.7m | 1,096,899 | 43% | added | |
| 6 | UNH UNITEDHEALTH GROUP INC | Healthcare | 3.4% | $89.0m | 176,000 | -40% | reduced |
| 7 | TVTX TRAVERE THERAPEUTICS INC | Healthcare | 3.3% | $86.6m | 4,973,649 | 6% | added |
| 8 | MDGL MADRIGAL PHARMACEUTICALS INC | Healthcare | 3.1% | $81.8m | 265,212 | 1% | added |
| 9 | RARE ULTRAGENYX PHARMACEUTICAL IN | Healthcare | 2.8% | $73.2m | 1,739,813 | -12% | reduced |
| 10 | RYTM RHYTHM PHARMACEUTICALS INC | Healthcare | 2.5% | $65.1m | 1,162,718 | -5% | reduced |
| 11 | MIRM MIRUM PHARMACEUTICALS INC | Healthcare | 2.3% | $60.8m | 1,471,564 | -7% | reduced |
| 12 | ALNY ALNYLAM PHARMACEUTICALS INC | Healthcare | 2.3% | $60.3m | 256,200 | 2% | added |
| 13 | PEN PENUMBRA INC | Healthcare | 2.2% | $57.0m | 240,000 | -9% | reduced |
| 14 | WST WEST PHARMACEUTICAL SVSC INC | Healthcare | 2.1% | $55.3m | 168,750 | 1% | added |
| 15 | RVMD REVOLUTION MEDICINES INC | Healthcare | 2.0% | $53.1m | 1,213,257 | 20% | added |
| 16 | PHR PHREESIA INC | Healthcare | 2.0% | $51.3m | 2,040,000 | -11% | reduced |
| 17 | XENE XENON PHARMACEUTICALS INC | Healthcare | 1.9% | $49.1m | 1,251,859 | -5% | reduced |
| 18 | FRPT FRESHPET INC | Consumer Defensive | 1.8% | $48.5m | 327,500 | -27% | reduced |
| 19 | ASND ASCENDIS PHARMA A/S | Healthcare | 1.6% | $42.0m | 305,000 | -6% | reduced |
| 20 | KYMR KYMERA THERAPEUTICS INC | Healthcare | 1.6% | $41.6m | 1,034,137 | -1% | reduced |
| 21 | BSX BOSTON SCIENTIFIC CORP | Healthcare | 1.6% | $41.1m | 460,000 | 0% | held |
| 22 | EW EDWARDS LIFESCIENCES CORP | Healthcare | 1.5% | $40.3m | 545,000 | -6% | reduced |
| 23 | INSM INSMED INC | Healthcare | 1.4% | $38.0m | 550,000 | -20% | reduced |
| 24 | MERUS N V | 1.4% | $37.5m | 892,549 | 0% | held | |
| 25 | SRPT SAREPTA THERAPEUTICS INC | Healthcare | 1.4% | $37.4m | 307,500 | 0% | held |
| 26 | IRTC IRHYTHM TECHNOLOGIES INC | Healthcare | 1.4% | $35.8m | 397,500 | 0% | held |
| 27 | ZLAB ZAI LAB LTD | Healthcare | 1.3% | $34.2m | 1,305,337 | -1% | reduced |
| 28 | NUVALENT INC | 1.3% | $33.7m | 429,994 | 0% | held | |
| 29 | MREO MEREO BIOPHARMA GROUP PLC | Healthcare | 1.3% | $33.6m | 9,599,170 | 1% | added |
| 30 | SRRK SCHOLAR ROCK HLDG CORP | Healthcare | 1.2% | $31.0m | 716,782 | – | new |
| 31 | CLDX CELLDEX THERAPEUTICS INC NEW | Healthcare | 1.2% | $30.9m | 1,222,182 | 11% | added |
| 32 | PODD INSULET CORP | Healthcare | 1.1% | $29.8m | 114,250 | -15% | reduced |
| 33 | GPCR STRUCTURE THERAPEUTICS INC | Healthcare | 1.1% | $29.3m | 1,080,963 | 2% | added |
| 34 | DXCM DEXCOM INC | Healthcare | 1.0% | $27.5m | 353,000 | -33% | reduced |
| 35 | AKERO THERAPEUTICS INC | 1.0% | $26.3m | 946,499 | 1% | added | |
| 36 | EXK EXACT SCIENCES CORP | Basic Materials | 1.0% | $25.3m | 450,000 | -61% | reduced |
| 37 | AM6 AMICUS THERAPEUTICS INC | 0.9% | $24.5m | 2,599,425 | 108% | added | |
| 38 | INSP INSPIRE MED SYS INC | Healthcare | 0.9% | $24.1m | 130,000 | 0% | held |
| 39 | AZTA AZENTA INC | Healthcare | 0.9% | $23.8m | 475,000 | -11% | reduced |
| 40 | EVH EVOLENT HEALTH INC | Healthcare | 0.9% | $23.2m | 2,060,000 | -0% | held |
| 41 | ACHC ACADIA HEALTHCARE COMPANY IN | Healthcare | 0.9% | $23.1m | 583,500 | -28% | reduced |
| 42 | IMVT IMMUNOVANT INC | Healthcare | 0.9% | $22.5m | 909,103 | -26% | reduced |
| 43 | WRBY WARBY PARKER INC | Healthcare | 0.8% | $22.3m | 920,000 | -36% | reduced |
| 44 | VERA VERA THERAPEUTICS INC | Healthcare | 0.8% | $20.6m | 487,863 | 27% | added |
| 45 | BCRX BIOCRYST PHARMACEUTICALS INC | Healthcare | 0.8% | $20.1m | 2,677,996 | -26% | reduced |
| 46 | NEWAMSTERDAM PHARMA COMPANY | 0.8% | $19.7m | 767,522 | 117% | added | |
| 47 | SMMT SUMMIT THERAPEUTICS INC | Healthcare | 0.7% | $18.8m | 1,054,000 | 1% | added |
| 48 | LFST LIFESTANCE HEALTH GROUP INC | Healthcare | 0.7% | $18.8m | 2,550,000 | -18% | reduced |
| 49 | LEGN LEGEND BIOTECH CORP | Healthcare | 0.6% | $16.7m | 512,132 | 1% | added |
| 50 | THC TENET HEALTHCARE CORP | Healthcare | 0.6% | $16.3m | 129,200 | – | new |
Weights are shares of the reported long US equity book (options excluded). Values are as filed, normalised to whole dollars. Share changes compare against the immediately preceding filing only.