Rock Springs Capital Management LP

Source: SEC Form 13F · as of Mar 2026

Rock Springs Capital Management LP holds 77 biotech & pharma companies tracked by BioSniper, totaling $1.36B in value as of Mar 2026 (SEC Form 13F).

Companies held

77

Total value held

$1.36B

CompanySharesValue
RVMDREVOLUTION MEDICINES, INC.1,209,465$117.6M
LLYELI LILLY & Co98,700$90.8M
MDGLMADRIGAL PHARMACEUTICALS, INC.170,999$89.5M
MIRMMirum Pharmaceuticals, Inc.811,294$74.9M
ARGXARGENX SE98,500$71.9M
RYTMRHYTHM PHARMACEUTICALS, INC.689,748$60.0M
INSMINSMED Inc314,300$51.4M
XENEXenon Pharmaceuticals Inc.763,020$44.4M
TVTXTravere Therapeutics, Inc.1,477,954$43.9M
KYMRKymera Therapeutics, Inc.496,871$41.4M
SRRKScholar Rock Holding Corp739,816$36.4M
ELVNEnliven Therapeutics, Inc.826,500$32.4M
GPCRStructure Therapeutics Inc.640,217$30.9M
AGIOAGIOS PHARMACEUTICALS, INC.799,163$27.0M
RAREUltragenyx Pharmaceutical Inc.1,218,773$25.5M
ALNYALNYLAM PHARMACEUTICALS, INC.74,000$24.5M
COGTCogent Biosciences, Inc.624,155$24.0M
CLDXCelldex Therapeutics, Inc.650,270$20.6M
VERAVera Therapeutics, Inc.503,585$20.3M
NBIXNEUROCRINE BIOSCIENCES INC150,450$19.8M
ACLXArcellx, Inc.169,859$19.5M
NAMSNEWAMSTERDAM PHARMA CO N.V.588,794$18.8M
PHVSPharvaris N.V.645,533$18.2M
ERASErasca, Inc.1,103,469$17.9M
DYNDyne Therapeutics, Inc.972,198$17.6M
CMPXCompass Therapeutics, Inc.3,305,308$17.5M
ACRSAclaris Therapeutics, Inc.4,472,650$16.8M
TARSTarsus Pharmaceuticals, Inc.225,179$15.8M
ZLABZai Lab Ltd814,707$15.3M
UNHUnitedHealth Group Incorporated Common Stock (DE)53,000$14.3M
CNTACentessa Pharmaceuticals plc351,828$14.0M
ARDXARDELYX, INC.2,299,473$13.8M
SMMTSummit Therapeutics Inc.710,000$13.5M
MLYSMineralys Therapeutics, Inc.439,751$11.9M
PTCTPTC THERAPEUTICS, INC.161,798$11.0M
CAICaris Life Sciences Inc.563,000$10.1M
ZBIOZenas BioPharma, Inc.502,077$9.8M
BCAXBicara Therapeutics Inc.489,095$9.7M
BBIOBridgeBio Pharma, Inc.128,250$9.5M
SLNOSOLENO THERAPEUTICS INC257,253$8.6M
MBXMBX Biosciences, Inc.287,967$8.6M
TNGXTango Therapeutics, Inc.386,915$8.1M
REGNREGENERON PHARMACEUTICALS, INC.10,100$7.8M
IMNMImmunome Inc.347,666$7.6M
AMLXAmylyx Pharmaceuticals, Inc.499,764$6.9M
INSPInspire Medical Systems Inc.131,800$6.8M
APLSApellis Pharmaceuticals, Inc.162,750$6.5M
ALKSAlkermes plc.183,986$6.5M
INDVIndivior Pharmaceuticals, Inc.200,000$6.1M
TERNTerns Pharmaceuticals, Inc.113,748$6.0M
JANXJanux Therapeutics, Inc.367,009$5.1M
SIONSionna Therapeutics, Inc.99,429$4.0M
RCUSArcus Biosciences, Inc.180,000$3.9M
PCVXVaxcyte, Inc.60,250$3.5M
NVONovo Nordisk A/S90,000$3.3M
OCULOCULAR THERAPEUTIX, INC383,716$3.3M
VKTXViking Therapeutics, Inc.96,000$3.1M
CYTKCYTOKINETICS INC45,364$3.0M
IPSCCentury Therapeutics, Inc.1,304,347$2.9M
ROIVRoivant Sciences Ltd.97,000$2.7M
TLPHTALPHERA, INC.3,589,186$2.7M
OLMAOlema Pharmaceuticals, Inc.170,378$2.5M
LENZLENZ Therapeutics, Inc.257,460$2.4M
DNTHDianthus Therapeutics, Inc. /DE/26,757$2.2M
NGNENeurogene Inc.104,339$2.1M
AGLagilon health inc.260,000$2.1M
CORTCORCEPT THERAPEUTICS INC50,250$2.0M
ACHCAcadia Healthcare Company Inc.75,500$1.8M
TEVATeva Pharmaceutical Industries Limited45,500$1.4M
MLTXMoonLake Immunotherapeutics61,700$1.2M
JAZZJazz Pharmaceuticals plc5,750$1.1M
JSPRJasper Therapeutics Inc.1,100,726$964K
LEGNLegend Biotech Corp40,500$733K
GOSSGossamer Bio, Inc.1,609,492$529K
FOLDAMICUS THERAPEUTICS, INC.21,062$305K
ORKAOruka Therapeutics, Inc.4,123$202K
BCRXBIOCRYST PHARMACEUTICALS INC12,600$120K

13F holdings reflect long positions in U.S.-listed securities as reported to the SEC. Values are point-in-time for the most recent reported quarter.

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