Fund HoldingsRock Springs Capital Management LP

Total Portfolio Value
$2.05B
Total Bought
$424.44M
Total Sold
$342.67M
Net Transaction
+$81.77M
Filing Period:
Securities
SharesValue ($K)
Q1 2026
Q2 2026
Change
Q1 2026
Q2 2026
Weight (%)
Change
REVOLUTION MEDICINES INC(RVMD)1,209,4651,105,210-104,255117,620206,98410.10%+89,363
TRAVERE THERAPEUTICS INC(TVTX)02,179,069+2,179,0690123,7936.04%+123,793
ASCENDIS PHARMA A/S(ASND)0168,750+168,750045,0092.20%+45,009
ELI LILLY & CO(LLY)098,700+98,7000118,3845.78%+118,384
AGILON HEALTH INC(AGL)260,000262,600+2,6002,05728,1451.37%+26,089
AVALYN PHARMACEUTICALS INC0662,918+662,918021,8231.07%+21,823
HEMAB THERAPEUTICS HLDGS INC0575,432+575,432021,1361.03%+21,136
MIRUM PHARMACEUTICALS INC(MIRM)811,294798,145-13,14974,94793,4394.56%+18,491
RHYTHM PHARMACEUTICALS INC(RYTM)0692,598+692,598076,8993.75%+76,899
PARABILIS MEDICINES INC0578,028+578,028015,8210.77%+15,821
CYTOKINETICS INC(CYTK)45,364187,980+142,6162,99016,0140.78%+13,024
UNITEDHEALTH GROUP INC(UNH)53,00063,750+10,75014,34126,4961.29%+12,155
KYMERA THERAPEUTICS INC(KYMR)496,871453,156-43,71541,38451,9632.54%+10,579
MBX BIOSCIENCES INC(MBX)287,967298,218+10,2518,59616,4620.80%+7,866
ERASCA INC(ERAS)1,103,4691,402,150+298,68117,85425,6871.25%+7,833
EVOLENT HEALTH INC2,675,0002,500,000-175,0006,09913,5500.66%+7,451
MINIMED GROUP INC(MMED)1,055,0001,520,000+465,00015,74122,7241.11%+6,983
OMEROS CORP(OMER)0718,499+718,49906,8330.33%+6,833
ULTRAGENYX PHARMACEUTICAL IN(RARE)1,218,773967,855-250,91825,53332,3171.58%+6,783
DEFINIUM THERAPEUTICS INC(DFTX)0143,187+143,18706,7360.33%+6,736
TANGO THERAPEUTICS INC(TNGX)386,915456,551+69,6368,09414,2720.70%+6,178
BICARA THERAPEUTICS INC489,095535,286+46,1919,72815,8930.78%+6,165
ACLARIS THERAPEUTICS INC(ACRS)4,472,6504,330,532-142,11816,77222,9091.12%+6,136
MOBIA MED INC0418,200+418,20005,6040.27%+5,604
CELLDEX THERAPEUTICS INC NEW(CLDX)650,270699,146+48,87620,62726,0151.27%+5,389
TREVI THERAPEUTICS INC(TRVI)0260,000+260,00004,8490.24%+4,849
NEUROCRINE BIOSCIENCES INC(NBIX)150,450144,750-5,70019,82024,3951.19%+4,575
MADRIGAL PHARMACEUTICALS INC(MDGL)170,999174,999+4,00089,51393,9664.59%+4,453
STRYKER CORPORATION(SYK)14,80029,000+14,2004,8639,1300.45%+4,267
CORCEPT THERAPEUTICS INC(CORT)50,25072,000+21,7502,0266,2600.31%+4,235
PHARVARIS N V
COM
645,533648,333+2,80018,23622,4191.09%+4,183
INSPIRE MED SYS INC(INSP)131,800244,000+112,2006,79810,8850.53%+4,087
INDIVIOR PHARMACEUTICALS INC(INDV)200,000245,500+45,5006,09610,0730.49%+3,977
ALKERMES PLC(ALKS)183,986199,811+15,8256,50610,4690.51%+3,963
SPYRE THERAPEUTICS INC(SYRE)042,254+42,25403,7510.18%+3,751
STRUCTURE THERAPEUTICS INC0640,317+640,317034,3661.68%+34,366
DYNE THERAPEUTICS INC(DYN)972,198942,154-30,04417,62620,9251.02%+3,299
SCHOLAR ROCK HLDG CORP(SRRK)739,816715,452-24,36436,36939,3501.92%+2,981
ZENAS BIOPHARMA INC(ZBIO)502,077502,07709,81612,7430.62%+2,927
HEARTFLOW INC(HTFL)572,500573,500+1,00013,92916,8260.82%+2,898
DANAHER CORP DEL(DHR)61,50076,300+14,80011,66014,5340.71%+2,873
NERVGEN PHARMA CORP01,208,231+1,208,23102,4890.12%+2,489
MEDTRONIC PLC(MDT)030,900+30,90002,4170.12%+2,417
PTC THERAPEUTICS INC(PTCT)161,798162,298+50011,02313,2390.65%+2,215
PHREESIA INC600,400696,900+96,5005,0317,1710.35%+2,140
EDAP TMS S A1,378,0001,386,000+8,0005,1267,1790.35%+2,053
AMYLYX PHARMACEUTICALS INC(AMLX)499,764499,76406,9478,9760.44%+2,029
SAGIMET BIOSCIENCES INC0250,000+250,00001,9330.09%+1,933
CAPRICOR THERAPEUTICS INC074,448+74,44801,7930.09%+1,793
ARCUS BIOSCIENCES INC(RCUS)180,000180,00003,8885,5490.27%+1,661
TARSUS PHARMACEUTICALS INC(TARS)225,179277,087+51,90815,79617,4400.85%+1,644
ALTIMMUNE INC0471,465+471,46501,4330.07%+1,433
KAILERA THERAPEUTICS INC065,000+65,00001,4320.07%+1,432
OMADA HEALTH INC(OMDA)541,000373,000-168,0006,8008,1870.40%+1,387
AXSOME THERAPEUTICS INC.(AXSM)05,500+5,50001,3460.07%+1,346
CVS HEALTH CORP(CVS)40,00040,00002,8734,1380.20%+1,265
BRIDGEBIO PHARMA INC(BBIO)128,250144,750+16,5009,52410,7810.53%+1,257
NEUROGENE INC104,339106,750+2,4112,1033,3570.16%+1,254
IRHYTHM HOLDINGS INC(IRTC)0269,650+269,650032,0751.57%+32,075
MINERALYS THERAPEUTICS INC(MLYS)439,751484,951+45,20011,91313,0840.64%+1,171
TALPHERA INC3,589,1863,589,18602,6813,6970.18%+1,016
ORUKA THERAPEUTICS INC(ORKA)4,12312,051+7,9282021,1470.06%+945
NEWAMSTERDAM PHARMA COMPANY
ORDINARY SHARES
588,794582,744-6,05018,84719,7490.96%+902
ROIVANT SCIENCES LTD(ROIV)97,000101,000+4,0002,6873,5740.17%+887
DEXCOM INC(DXCM)355,600343,000-12,60022,33223,1011.13%+769
GLAUKOS CORP(GKOS)04,750+4,75006640.03%+664
TEVA PHARMACEUTICAL INDS LTD(TEVA)45,50059,000+13,5001,3701,9990.10%+628
JANUX THERAPEUTICS INC(JANX)367,009367,00905,1015,6370.28%+536
OCULAR THERAPEUTIX INC(OCUL)383,716383,71603,2503,7680.18%+518
EYEPOINT INC(EYPT)258,739268,519+9,7803,3353,8400.19%+505
OLEMA PHARMACEUTICALS INC(OLMA)170,378235,178+64,8002,5402,9420.14%+402
SIONNA THERAPEUTICS INC99,42999,42903,9864,3740.21%+388
CENTURY THERAPEUTICS INC1,304,3471,304,34702,9483,1960.16%+248
LEGEND BIOTECH CORP(LEGN)40,50033,500-7,0007339670.05%+235
ZAI LAB LTD(ZLAB)814,707814,707015,32515,4790.76%+155
BIOCRYST PHARMACEUTICALS INC(BCRX)12,60022,124+9,5241202210.01%+101
THERMO FISHER SCIENTIFIC INC(TMO)10,00010,00004,9155,0140.24%+98
VAXCYTE INC(PCVX)60,25060,25003,5013,5020.17%+1
TENET HEALTHCARE CORP(THC)125,000125,000023,58923,3851.14%-204
IMMUNOME INC(IMNM)347,666347,66607,6037,3670.36%-236
NOVO-NORDISK A S(NVO)90,00063,500-26,5003,3083,0440.15%-263
DIANTHUS THERAPEUTICS INC(DNTH)26,75720,326-6,4312,2451,9810.10%-264
AMICUS THERAPEUTIC
COM
000000
JASPER THERAPEUTICS INC1,100,7261,100,72609644630.02%-501
GOSSAMER BIO INC1,609,4920-1,609,4925290-529
ALPHATEC HLDGS INC(ATEC)350,000360,000+10,0003,8083,1140.15%-694
LENZ THERAPEUTICS INC257,460257,46002,3561,4620.07%-893
MOONLAKE IMMUNOTHERAPEUTICS(MLTX)61,70010,696-51,0041,1502080.01%-942
SURGERY PARTNERS INC(SGRY)208,00084,000-124,0002,4791,4110.07%-1,068
JAZZ PHARMACEUTICALS PLC(JAZZ)5,7500-5,7501,0870-1,087
CARIS LIFE SCIENCES INC(CAI)563,000487,500-75,50010,0668,6870.42%-1,379
AZENTA INC(AZTA)569,100403,000-166,10012,02510,2850.50%-1,741
ACADIA HEALTHCARE COMPANY IN(ACHC)75,5000-75,5001,7660-1,766
VERA THERAPEUTICS INC(VERA)503,585427,584-76,00120,25918,3480.90%-1,912
VIKING THERAPEUTICS INC(VKTX)96,00025,500-70,5003,1249950.05%-2,129
EDWARDS LIFESCIENCES CORP28,9000-28,9002,3140-2,314
ARDELYX INC2,299,4732,241,769-57,70413,77411,4330.56%-2,341
PENUMBRA INC(PEN)120,500115,750-4,75039,56936,5481.78%-3,021
SUMMIT THERAPEUTICS INC(SMMT)710,000715,000+5,00013,46210,4180.51%-3,044
XENON PHARMACEUTICALS INC(XENE)763,020683,907-79,11344,37041,2812.01%-3,089
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