Fund HoldingsRock Springs Capital Management LP

Total Portfolio Value
$2.63B
Total Bought
$337.96M
Total Sold
$572.79M
Net Transaction
-$234.83M
Filing Period:
Securities
SharesValue ($K)
Q3 2024
Q4 2024
Change
Q3 2024
Q4 2024
Weight (%)
Change
SCHOLAR ROCK HLDG CORP(SRRK)0716,782+716,782030,9791.18%+30,979
MADRIGAL PHARMACEUTICALS INC(MDGL)0265,212+265,212081,8363.12%+81,836
BLUEPRINT MEDICINES CORP01,096,899+1,096,899095,6723.64%+95,672
TRAVERE THERAPEUTICS INC(TVTX)4,684,4764,973,649+289,17365,53686,6413.30%+21,105
TENET HEALTHCARE CORP(THC)0129,200+129,200016,3090.62%+16,309
ARGENX SE(ARGX)233,500229,600-3,900126,576141,2045.38%+14,628
NEWAMSTERDAM PHARMA COMPANY
ORDINARY SHARES
353,319767,522+414,2035,86519,7250.75%+13,860
ACLARIS THERAPEUTICS INC(ACRS)2,753,4956,204,309+3,450,8143,16715,3870.59%+12,220
AMICUS THERAPEUTICS INC
COM
1,250,2802,599,425+1,349,14513,35324,4870.93%+11,134
JANUX THERAPEUTICS INC(JANX)0204,466+204,466010,9470.42%+10,947
ARDELYX INC01,463,629+1,463,62907,4210.28%+7,421
REVOLUTION MEDICINES INC(RVMD)1,009,9451,213,257+203,31245,80153,0682.02%+7,267
IRHYTHM TECHNOLOGIES INC(IRTC)0397,500+397,500035,8431.36%+35,843
TARSUS PHARMACEUTICALS INC(TARS)0110,889+110,88906,1400.23%+6,140
SOLENO THERAPEUTICS INC0124,095+124,09505,5780.21%+5,578
PENUMBRA INC(PEN)265,000240,000-25,00051,49256,9952.17%+5,503
SPRINGWORKS THERAPEUTICS INC199,855328,911+129,0566,40311,8840.45%+5,480
WEST PHARMACEUTICAL SVSC INC(WST)167,750168,750+1,00050,35255,2762.10%+4,924
89BIO INC0552,741+552,74104,3220.16%+4,322
VERA THERAPEUTICS INC(VERA)383,492487,863+104,37116,95020,6320.79%+3,681
BOSTON SCIENTIFIC CORP(BSX)0460,000+460,000041,0871.56%+41,087
ZAI LAB LTD(ZLAB)1,315,6731,305,337-10,33631,76034,1871.30%+2,426
EDWARDS LIFESCIENCES CORP0545,000+545,000040,3461.54%+40,346
NEUROGENE INC095,407+95,40702,1810.08%+2,181
ALPHATEC HLDGS INC(ATEC)0200,000+200,00001,8360.07%+1,836
SAGIMET BIOSCIENCES INC787,808787,80802,1823,5450.13%+1,363
JASPER THERAPEUTICS INC459,088463,088+4,0008,6359,9010.38%+1,265
XENCOR INC(XNCR)401,013401,01308,0649,2150.35%+1,151
PLIANT THERAPEUTICS INC384,996404,796+19,8004,3165,3310.20%+1,015
LENZ THERAPEUTICS INC029,305+29,30508460.03%+846
PHARVARIS N V
COM
756,931775,131+18,20014,01814,8590.57%+841
RHYTHM PHARMACEUTICALS INC(RYTM)1,228,0931,162,718-65,37564,34065,0892.48%+749
ALLAKOS INC1,200,4091,100,409-100,0007841,3310.05%+547
XILIO THERAPEUTICS INC3,003,2593,003,25902,3662,8680.11%+502
LEAP THERAPEUTICS INC1,266,5461,266,54603,2553,6410.14%+386
CRINETICS PHARMACEUTICALS IN(CRNX)289,400294,100+4,70014,78815,0370.57%+249
APELLIS PHARMACEUTICALS INC
COM
80,00080,00002,3072,5530.10%+246
KORRO BIO INC35,71935,71901,1941,3600.05%+166
BEAM THERAPEUTICS INC(BEAM)249,923252,223+2,3006,1236,2550.24%+132
GOSSAMER BIO INC0005,0135,0700.19%+57
NUVATION BIO INC(NUVB)0134,028+134,0280310.00%+31
NEVRO CORP0004844890.02%+5
NUVATION BIO INC(NUVB)134,0280-134,028130-13
MACROGENICS INC1,053,6471,053,64703,4663,4240.13%-42
TALPHERA INC316,460316,46002711660.01%-105
SPRUCE BIOSCIENCES INC2,609,1252,609,12501,2391,0960.04%-143
KYVERNA THERAPEUTICS INC178,963178,96308756690.03%-206
GOSSAMER BIO INC3,266,9603,266,96003,2232,9550.11%-267
COMPUGEN LTD989,990989,99001,7921,5150.06%-277
VINCERX PHARMA INC891,719891,71906382340.01%-404
AKERO THERAPEUTICS INC933,399946,499+13,10026,77926,3321.00%-448
EDAP TMS S A1,568,0001,591,800+23,8003,9983,5180.13%-481
PULMONX CORP691,300772,151+80,8515,7315,2430.20%-488
ACCOLADE INC160,2170-160,2176170-617
PHREESIA INC2,282,5002,040,000-242,50052,01851,3261.95%-692
MIRUM PHARMACEUTICALS INC(MIRM)1,580,4881,471,564-108,92461,63960,8492.32%-790
VIGIL NEUROSCIENCE INC471,958471,95801,6058020.03%-802
NEUMORA THERAPEUTICS INC.828,101955,106+127,00510,93910,1240.39%-815
MERSANA THERAPEUTICS INC3,046,7823,431,684+384,9025,7584,9070.19%-851
ADAPTIMMUNE THERAPEUTICS PLC2,425,4682,483,468+58,0002,3051,3380.05%-967
SAREPTA THERAPEUTICS INC(SRPT)307,500307,500038,40437,3891.42%-1,015
BIOMEA FUSION INC181,147181,14701,8307030.03%-1,127
WARBY PARKER INC(WRBY)1,439,050920,000-519,05023,50022,2730.85%-1,226
ENLIVEN THERAPEUTICS INC428,571428,571010,9469,6430.37%-1,303
AUTOLUS THERAPEUTICS PLC1,032,9881,032,98803,7502,4280.09%-1,322
INSULET CORP(PODD)134,000114,250-19,75031,18929,8271.14%-1,361
BIOHAVEN LTD(BHVN)127,558129,858+2,3006,3744,8500.18%-1,524
PROTHENA CORP PLC
SHS
625,048644,601+19,55310,4578,9280.34%-1,529
NEVRO CORP1,381,5001,648,100+266,6007,7236,1310.23%-1,592
COMPASS THERAPEUTICS INC5,629,2395,779,575+150,33610,3588,3800.32%-1,977
AZENTA INC(AZTA)532,500475,000-57,50025,79423,7500.90%-2,044
ACUMEN PHARMACEUTICALS INC2,300,0591,838,916-461,1435,7043,1630.12%-2,541
XENON PHARMACEUTICALS INC(XENE)1,316,4771,251,859-64,61851,83049,0731.87%-2,757
LIFESTANCE HEALTH GROUP INC(LFST)3,101,0002,550,000-551,00021,70718,7940.72%-2,913
NOVAVAX INC(NVAX)650,000650,00008,2105,2260.20%-2,983
CULLINAN THERAPEUTICS INC(CGEM)736,914742,114+5,20012,3369,0390.34%-3,297
INSPIRE MED SYS INC(INSP)130,000130,000027,43724,0990.92%-3,337
BICARA THERAPEUTICS INC445,975445,975011,3597,7690.30%-3,590
SUMMIT THERAPEUTICS INC(SMMT)1,040,0001,054,000+14,00022,77618,8090.72%-3,967
ESSA PHARMA INC677,0050-677,0054,1030-4,103
PERSPECTIVE THERAPEUTICS INC414,396444,383+29,9875,5321,4180.05%-4,115
DYNE THERAPEUTICS INC(DYN)461,028474,528+13,50016,56011,1800.43%-5,380
MEREO BIOPHARMA GROUP PLC9,534,1709,599,170+65,00039,18533,5971.28%-5,588
PACIRA BIOSCIENCES INC(PCRX)000000
ASCENDIS PHARMA A/S(ASND)325,000305,000-20,00048,52641,9891.60%-6,536
CELLDEX THERAPEUTICS INC NEW(CLDX)01,222,182+1,222,182030,8851.18%+30,885
DYNAVAX TECHNOLOGIES CORP605,0130-605,0136,7400-6,740
MERUS N V0892,549+892,549037,5321.43%+37,532
OSCAR HEALTH INC(OSCR)1,011,4001,050,000+38,60021,45214,1120.54%-7,340
BIOCRYST PHARMACEUTICALS INC(BCRX)3,622,3582,677,996-944,36227,53020,1390.77%-7,391
ZENAS BIOPHARMA INC(ZBIO)878,667878,667014,8677,1960.27%-7,671
DEXCOM INC(DXCM)0353,000+353,000027,4531.05%+27,453
KYMERA THERAPEUTICS INC(KYMR)1,049,3861,034,137-15,24949,66741,6031.58%-8,064
LEGEND BIOTECH CORP(LEGN)508,932512,132+3,20024,80016,6650.63%-8,135
ALNYLAM PHARMACEUTICALS INC(ALNY)250,000256,200+6,20068,75860,2862.30%-8,471
AURINIA PHARMACEUTICALS INC(AUPH)1,179,7400-1,179,7408,6470-8,647
INOZYME PHARMA INC3,802,8833,861,983+59,10019,88910,6980.41%-9,191
NEUROCRINE BIOSCIENCES INC(NBIX)0720,500+720,500098,3483.74%+98,348
KRYSTAL BIOTECH INC(KRYS)55,8610-55,86110,1680-10,168
NUVALENT INC429,994429,994043,98833,6601.28%-10,328
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