Fund HoldingsRock Springs Capital Management LP

Total Portfolio Value
$3.32B
Total Bought
$440.32M
Total Sold
$805.69M
Net Transaction
-$365.36M
Filing Period:
Securities
SharesValue ($K)
Q1 2024
Q2 2024
Change
Q1 2024
Q2 2024
Weight (%)
Change
INSMED INC(INSM)0808,356+808,356054,1601.63%+54,160
ELI LILLY & CO(LLY)103,250121,500+18,25080,324110,0043.31%+29,679
BLUEPRINT MEDICINES CORP02,460,417+2,460,4170265,1847.98%+265,184
UNITEDHEALTH GROUP INC(UNH)0275,000+275,0000140,0474.22%+140,047
JOHNSON & JOHNSON(JNJ)0170,000+170,000024,8470.75%+24,847
ALNYLAM PHARMACEUTICALS INC(ALNY)0250,000+250,000060,7501.83%+60,750
STRUCTURE THERAPEUTICS INC412,649999,862+587,21317,68639,2651.18%+21,578
MIRUM PHARMACEUTICALS INC(MIRM)01,772,038+1,772,038060,5861.82%+60,586
INTUITIVE SURGICAL INC298,500298,5000119,128132,7884.00%+13,659
CULLINAN THERAPEUTICS INC(CGEM)0658,338+658,338011,4810.35%+11,481
TRAVERE THERAPEUTICS INC(TVTX)3,424,8184,482,265+1,057,44726,40536,8441.11%+10,439
NUVALENT INC125,302255,989+130,6879,40919,4190.58%+10,010
ARGENX SE(ARGX)229,250229,250090,26098,5872.97%+8,326
MERUS N V1,146,5601,001,073-145,48751,63059,2331.78%+7,604
SPRINGWORKS THERAPEUTICS INC0199,855+199,85507,5290.23%+7,529
REVOLUTION MEDICINES INC(RVMD)923,681943,195+19,51429,77036,6051.10%+6,835
MEREO BIOPHARMA GROUP PLC8,142,1099,283,492+1,141,38326,86933,4211.01%+6,552
BLUEPRINT MEDICINES CORP(Call)057,000+57,00006,143+6,143
NOVAVAX INC(NVAX)537,625675,000+137,3752,5708,5460.26%+5,976
APELLIS PHARMACEUTICALS INC
COM
0140,700+140,70005,3970.16%+5,397
WARBY PARKER INC(WRBY)2,080,0002,080,000028,30933,4051.01%+5,096
BIOCRYST PHARMACEUTICALS INC(BCRX)3,496,2563,619,258+123,00217,76122,3670.67%+4,606
AGILON HEALTH INC(AGL)08,900,000+8,900,000058,2061.75%+58,206
PERSPECTIVE THERAPEUTICS INC0401,196+401,19604,0000.12%+4,000
HUMANA INC(HUM)0147,408+147,408055,0791.66%+55,079
DYNE THERAPEUTICS INC(DYN)451,824461,028+9,20412,82716,2700.49%+3,442
STRUCTURE THERAPEUTICS INC(Call)065,600+65,60002,576+2,576
ENLIVEN THERAPEUTICS INC428,571428,57107,53910,0160.30%+2,477
SAREPTA THERAPEUTICS INC(SRPT)327,600284,000-43,60042,41144,8721.35%+2,461
NOVO-NORDISK A S(NVO)147,500147,500018,93921,0540.63%+2,115
ZAI LAB LTD(ZLAB)01,297,873+1,297,873022,4920.68%+22,492
XILIO THERAPEUTICS INC1,440,7593,003,259+1,562,5001,5562,8460.09%+1,290
KORRO BIO INC035,719+35,71901,2100.04%+1,210
ALLAKOS INC01,200,409+1,200,40901,2000.04%+1,200
BEAM THERAPEUTICS INC(BEAM)147,510249,923+102,4134,8745,8560.18%+982
AURINIA PHARMACEUTICALS INC(AUPH)1,150,3471,179,740+29,3935,7636,7360.20%+973
GOSSAMER BIO INC0003,8454,7360.14%+891
KRYSTAL BIOTECH INC(KRYS)103,969105,569+1,60018,49919,3870.58%+887
VIGIL NEUROSCIENCE INC471,958471,95801,6091,8880.06%+278
LEAP THERAPEUTICS INC911,9371,266,546+354,6092,4262,4820.07%+57
TRAVERE THERAPEUTICS INC0002,8422,8880.09%+46
NEVRO CORP0004744830.01%+9
NUVATION BIO INC(NUVB)134,028134,028041210.00%-19
TALPHERA INC316,460316,46003262820.01%-44
ACLARIS THERAPEUTICS INC(ACRS)2,753,4952,753,49503,4143,0290.09%-385
BIOMARIN PHARMACEUTICAL INC(BMRN)148,832151,000+2,16812,99912,4320.37%-567
CRINETICS PHARMACEUTICALS IN(CRNX)289,400289,400013,54712,9620.39%-585
CHARLES RIV LABS INTL INC(CRL)48,50060,250+11,75013,14112,4460.37%-695
SPRUCE BIOSCIENCES INC2,609,1252,609,12502,0511,3510.04%-700
GOSSAMER BIO INC3,266,9603,266,96003,8552,9430.09%-912
VERA THERAPEUTICS INC(VERA)341,168381,192+40,02414,71113,7920.42%-920
RENEO PHARMACEUTICALS INC751,7300-751,7301,2480-1,248
NEUMORA THERAPEUTICS INC.646,118760,007+113,8898,8847,4710.22%-1,413
ADAPTIMMUNE THERAPEUTICS PLC2,425,4682,425,46803,8322,3650.07%-1,468
SAGIMET BIOSCIENCES INC770,671787,808+17,1374,1772,6940.08%-1,483
AMICUS THERAPEUTICS INC
COM
1,152,6561,218,580+65,92413,57812,0880.36%-1,490
PLIANT THERAPEUTICS INC384,996384,99605,7364,1390.12%-1,598
COMPUGEN LTD1,289,990989,990-300,0003,3281,6630.05%-1,665
NEUROCRINE BIOSCIENCES INC(NBIX)0001,8070-1,807
BIOMEA FUSION INC181,147181,14702,7088150.02%-1,893
PULMONX CORP652,400652,40006,0484,1360.12%-1,912
ESSA PHARMA INC677,005677,00505,7483,5610.11%-2,187
FULCRUM THERAPEUTICS INC727,673727,67306,8694,5120.14%-2,358
BIOHAVEN LTD(BHVN)126,984127,558+5746,9454,4280.13%-2,517
PROTHENA CORP PLC
SHS
0625,048+625,048012,9010.39%+12,901
JASPER THERAPEUTICS INC404,335404,335011,8719,1780.28%-2,693
IRHYTHM TECHNOLOGIES INC(IRTC)392,250397,500+5,25045,50142,7871.29%-2,714
EDAP TMS S A1,475,0001,475,000010,8418,0240.24%-2,817
AMYLYX PHARMACEUTICALS INC(AMLX)1,011,4120-1,011,4122,8720-2,872
APPLIED THERAPEUTICS INC1,497,9181,555,004+57,08610,1867,2620.22%-2,924
AUTOLUS THERAPEUTICS PLC1,032,9881,032,98806,5903,5950.11%-2,996
KYVERNA THERAPEUTICS INC178,963178,96304,4451,3420.04%-3,103
PHARVARIS N V
COM
752,924756,931+4,00717,40014,2300.43%-3,170
NEVRO CORP1,065,0001,381,500+316,50015,37911,6320.35%-3,746
ACUMEN PHARMACEUTICALS INC2,300,0592,300,05909,3155,5660.17%-3,749
VINCERX PHARMA INC891,719891,71904,5127220.02%-3,790
ULTRAGENYX PHARMACEUTICAL IN(RARE)1,774,9381,924,072+149,13482,87279,0792.38%-3,792
ASCENDIS PHARMA A/S(ASND)290,000290,000043,83939,5501.19%-4,289
XENON PHARMACEUTICALS INC(XENE)1,255,5771,272,877+17,30054,05349,6291.49%-4,423
ALNYLAM PHARMACEUTICALS INC(ALNY)(Call)32,5000-32,5004,8570-4,857
AZENTA INC(AZTA)694,750696,000+1,25041,88036,6241.10%-5,256
PHREESIA INC2,365,0002,417,500+52,50056,59451,2511.54%-5,343
COMPASS THERAPEUTICS INC5,513,7885,513,788010,9175,5140.17%-5,404
LEGEND BIOTECH CORP(LEGN)499,486505,786+6,30028,01622,4010.67%-5,615
LIFESTANCE HEALTH GROUP INC(LFST)4,780,0004,827,700+47,70029,49323,7040.71%-5,789
MINERALYS THERAPEUTICS INC(MLYS)792,615378,932-413,68310,2334,4340.13%-5,799
CELLDEX THERAPEUTICS INC NEW(CLDX)1,372,1851,398,994+26,80957,59151,7771.56%-5,814
IMMUNOVANT INC(IMVT)1,150,1231,185,654+35,53137,16031,3010.94%-5,859
DYNAVAX TECHNOLOGIES CORP1,675,4741,292,637-382,83720,79314,5160.44%-6,276
WEST PHARMACEUTICAL SVSC INC(WST)137,250145,500+8,25054,31147,9261.44%-6,385
AGIOS PHARMACEUTICALS INC(AGIO)1,764,5051,044,261-720,24451,59445,0291.36%-6,566
CG ONCOLOGY INC(CGON)170,8590-170,8597,5010-7,501
MERSANA THERAPEUTICS INC3,046,7823,046,782013,6506,1240.18%-7,526
MADRIGAL PHARMACEUTICALS INC(MDGL)285,931245,499-40,43276,35568,7792.07%-7,576
AKERO THERAPEUTICS INC1,299,8881,074,261-225,62732,83525,2020.76%-7,633
PACIRA BIOSCIENCES INC(PCRX)1,055,500785,000-270,50030,84222,4590.68%-8,383
IMMATICS N.V(IMTX)000000
INSPIRE MED SYS INC(INSP)130,500130,000-50028,03017,3980.52%-10,632
EDWARDS LIFESCIENCES CORP647,300550,000-97,30061,85650,8041.53%-11,052
OSCAR HEALTH INC(OSCR)2,110,0001,251,500-858,50031,37619,7990.60%-11,577
Page 1 of 1