Rock Springs Capital Management LP Diversified Active

Location: Baltimore, MD

CIK: 0001595725 · Show all filings

Period: Q1 2026 (← Previous)

Filing Date: May 15, 2026

Total Value: $1.697B (100.0% shares, 0.0% debt)

Holdings (100)

New Positions (11)

Increased Positions (34)

ELVN ENLIVEN THERAPEUTICS INC 1.9%
Value $32.4M (+163.5%) Shares 826,500 (+3.5%) Est. Cost Unrealized
MIRM MIRUM PHARMACEUTICALS INC 4.4%
Value $74.95M (+24.5%) Shares 811,294 (+6.4%) Est. Cost Unrealized
ERAS ERASCA INC 1.1%
Value $17.85M (+404.3%) Shares 1,103,469 (+15.9%) Est. Cost Unrealized
IRTC IRHYTHM HOLDINGS INC 1.8%
Value $30.89M (-25.9%) Shares 261,750 (+11.4%) Est. Cost Unrealized
MDGL MADRIGAL PHARMACEUTICALS INC 5.3%
Value $89.51M (+10.1%) Shares 170,999 (+22.5%) Est. Cost Unrealized
PTCT PTC THERAPEUTICS INC 0.6%
Value $11.02M (+134.5%) Shares 161,798 (+161.5%) Est. Cost Unrealized
CNTA CENTESSA PHARMACEUTICALS PLC 0.8%
Value $13.97M (+72.4%) Shares 351,828 (+8.6%) Est. Cost Unrealized
HTFL HEARTFLOW INC 0.8%
Value $13.93M (+72.1%) Shares 572,500 (+106.2%) Est. Cost Unrealized
BSX BOSTON SCIENTIFIC CORP 1.9%
Value $32.34M (-15.0%) Shares 515,300 (+29.1%) Est. Cost Unrealized
ALNY ALNYLAM PHARMACEUTICALS INC 1.4%
Value $24.48M (-13.6%) Shares 74,000 (+3.9%) Est. Cost Unrealized
MLYS MINERALYS THERAPEUTICS INC 0.7%
Value $11.91M (-23.2%) Shares 439,751 (+2.8%) Est. Cost Unrealized
SLNO SOLENO THERAPEUTICS INC 0.5%
Value $8.613M (-24.7%) Shares 257,253 (+4.1%) Est. Cost Unrealized
APLS APELLIS PHARMACEUTICALS INC 0.4%
Value $6.547M (+73.2%) Shares 162,750 (+8.1%) Est. Cost Unrealized
ALKS ALKERMES PLC 0.4%
Value $6.506M (+67.0%) Shares 183,986 (+32.1%) Est. Cost Unrealized
ATEC ALPHATEC HLDGS INC 0.2%
Value $3.808M (-40.2%) Shares 350,000 (+15.7%) Est. Cost Unrealized
BCAX BICARA THERAPEUTICS INC 0.6%
Value $9.728M (+34.7%) Shares 489,095 (+14.0%) Est. Cost Unrealized
NBIX NEUROCRINE BIOSCIENCES INC 1.2%
Value $19.82M (+11.4%) Shares 150,450 (+19.9%) Est. Cost Unrealized
TERN TERNS PHARMACEUTICALS INC 0.4%
Value $5.997M (+36.8%) Shares 113,748 (+4.9%) Est. Cost Unrealized
BBIO BRIDGEBIO PHARMA INC 0.6%
Value $9.524M (+20.3%) Shares 128,250 (+23.9%) Est. Cost Unrealized
PCVX VAXCYTE INC 0.2%
Value $3.501M (+61.4%) Shares 60,250 (+28.2%) Est. Cost Unrealized
OCUL OCULAR THERAPEUTIX INC 0.2%
Value $3.25M (-22.6%) Shares 383,716 (+11.0%) Est. Cost Unrealized
PHVS PHARVARIS N V 1.1%
Value $18.24M (+5.4%) Shares 645,533 (+3.6%) Est. Cost Unrealized
EDAP EDAP TMS S A 0.3%
Value $5.126M (+21.1%) Shares 1,378,000 (+7.1%) Est. Cost Unrealized
UNH UNITEDHEALTH GROUP INC 0.8%
Value $14.34M (+6.5%) Shares 53,000 (+29.9%) Est. Cost Unrealized
JAZZ JAZZ PHARMACEUTICALS PLC 0.1%
Value $1.087M (+265.4%) Shares 5,750 (+228.6%) Est. Cost Unrealized
ROIV ROIVANT SCIENCES LTD 0.2%
Value $2.687M (+39.5%) Shares 97,000 (+9.3%) Est. Cost Unrealized
DXCM DEXCOM INC 1.3%
Value $22.33M (-3.1%) Shares 355,600 (+2.4%) Est. Cost Unrealized
CYTK CYTOKINETICS INC 0.2%
Value $2.99M (+31.2%) Shares 45,364 (+26.5%) Est. Cost Unrealized
NAMS NEWAMSTERDAM PHARMA COMPANY 1.1%
Value $18.85M (-3.6%) Shares 588,794 (+5.7%) Est. Cost Unrealized
MBX MBX BIOSCIENCES INC 0.5%
Value $8.596M (-3.6%) Shares 287,967 (+1.9%) Est. Cost Unrealized
DYN DYNE THERAPEUTICS INC 1.0%
Value $17.63M (-1.3%) Shares 972,198 (+6.5%) Est. Cost Unrealized
JANX JANUX THERAPEUTICS INC 0.3%
Value $5.101M (+3.0%) Shares 367,009 (+2.3%) Est. Cost Unrealized
OLMA OLEMA PHARMACEUTICALS INC 0.1%
Value $2.54M (+3.4%) Shares 170,378 (+73.4%) Est. Cost Unrealized
LEGN LEGEND BIOTECH CORP 0.0%
Value $733K (-0.3%) Shares 40,500 (+19.8%) Est. Cost Unrealized

Exited Positions (10)

Decreased Positions (23)

TVTX TRAVERE THERAPEUTICS INC 2.6%
Value $43.91M (-48.0%) Shares 1,477,954 (-33.1%) Est. Cost Unrealized
FOLD AMICUS THERAPEUTIC 0.0%
Value $305K (-98.9%) Shares 21,062 (-98.9%) Est. Cost Unrealized
XBI SPDR SERIES TRUST 0.2%
Value $3.832M (-85.8%) Shares 30,000 (-86.5%) Est. Cost Unrealized
LLY ELI LILLY & CO 5.4%
Value $90.78M (-19.9%) Shares 98,700 (-6.4%) Est. Cost Unrealized
GPCR STRUCTURE THERAPEUTICS INC 1.8%
Value $30.86M (-40.7%) Shares 640,217 (-14.4%) Est. Cost Unrealized
ARGX ARGENX SE 4.2%
Value $71.93M (-17.2%) Shares 98,500 (-4.6%) Est. Cost Unrealized
RVMD REVOLUTION MEDICINES INC 6.9%
Value $118M (+10.6%) Shares 1,209,465 (-9.4%) Est. Cost Unrealized
PHR PHREESIA INC 0.3%
Value $5.031M (-66.1%) Shares 600,400 (-31.5%) Est. Cost Unrealized
GOSS GOSSAMER BIO INC 0.0%
Value $529K (-94.8%) Shares 1,609,492 (-50.7%) Est. Cost Unrealized
XENE XENON PHARMACEUTICALS INC 2.6%
Value $44.37M (+25.7%) Shares 763,020 (-3.1%) Est. Cost Unrealized
VERA VERA THERAPEUTICS INC 1.2%
Value $20.26M (-29.6%) Shares 503,585 (-11.4%) Est. Cost Unrealized
CAI CARIS LIFE SCIENCES INC 0.6%
Value $10.07M (-45.7%) Shares 563,000 (-18.1%) Est. Cost Unrealized
COGT COGENT BIOSCIENCES INC 1.4%
Value $24.02M (-20.3%) Shares 624,155 (-26.5%) Est. Cost Unrealized
TARS TARSUS PHARMACEUTICALS INC 0.9%
Value $15.8M (-25.9%) Shares 225,179 (-13.5%) Est. Cost Unrealized
OMDA OMADA HEALTH INC 0.4%
Value $6.8M (-41.8%) Shares 541,000 (-26.9%) Est. Cost Unrealized
EW EDWARDS LIFESCIENCES CORP 0.1%
Value $2.314M (-67.1%) Shares 28,900 (-65.0%) Est. Cost Unrealized
INSM INSMED INC 3.0%
Value $51.39M (-7.5%) Shares 314,300 (-1.6%) Est. Cost Unrealized
RARE ULTRAGENYX PHARMACEUTICAL IN 1.5%
Value $25.53M (-12.4%) Shares 1,218,773 (-3.8%) Est. Cost Unrealized
CMPX COMPASS THERAPEUTICS INC 1.0%
Value $17.49M (-17.1%) Shares 3,305,308 (-15.8%) Est. Cost Unrealized
SGRY SURGERY PARTNERS INC 0.1%
Value $2.479M (-48.2%) Shares 208,000 (-32.9%) Est. Cost Unrealized
CLDX CELLDEX THERAPEUTICS INC NEW 1.2%
Value $20.63M (+9.7%) Shares 650,270 (-6.1%) Est. Cost Unrealized
ASND ASCENDIS PHARMA A/S 2.6%
Value $44.37M (+2.3%) Shares 194,000 (-4.7%) Est. Cost Unrealized
ACHC ACADIA HEALTHCARE COMPANY IN 0.1%
Value $1.766M (+3.7%) Shares 75,500 (-37.1%) Est. Cost Unrealized

Unchanged Positions (32)

RYTM RHYTHM PHARMACEUTICALS INC 3.5%
Value $59.99M Shares 689,748 Est. Cost Unrealized
ISRG INTUITIVE SURGICAL INC 2.2%
Value $37.8M Shares 82,000 Est. Cost Unrealized
ACLX ARCELLX INC 1.1%
Value $19.5M Shares 169,859 Est. Cost Unrealized
ZBIO ZENAS BIOPHARMA INC 0.6%
Value $9.816M Shares 502,077 Est. Cost Unrealized
AZTA AZENTA INC 0.7%
Value $12.03M Shares 569,100 Est. Cost Unrealized
INSP INSPIRE MED SYS INC 0.4%
Value $6.798M Shares 131,800 Est. Cost Unrealized
AGIO AGIOS PHARMACEUTICALS INC 1.6%
Value $27.04M Shares 799,163 Est. Cost Unrealized
TNGX TANGO THERAPEUTICS INC 0.5%
Value $8.094M Shares 386,915 Est. Cost Unrealized
EVH EVOLENT HEALTH INC 0.4%
Value $6.099M Shares 2,675,000 Est. Cost Unrealized
SRRK SCHOLAR ROCK HLDG CORP 2.1%
Value $36.37M Shares 739,816 Est. Cost Unrealized
ACRS ACLARIS THERAPEUTICS INC 1.0%
Value $16.77M Shares 4,472,650 Est. Cost Unrealized
KYMR KYMERA THERAPEUTICS INC 2.4%
Value $41.38M Shares 496,871 Est. Cost Unrealized
DHR DANAHER CORP DEL 0.7%
Value $11.66M Shares 61,500 Est. Cost Unrealized
PEN PENUMBRA INC 2.3%
Value $39.57M Shares 120,500 Est. Cost Unrealized
LENZ LENZ THERAPEUTICS INC 0.1%
Value $2.356M Shares 257,460 Est. Cost Unrealized
TLPH TALPHERA INC 0.2%
Value $2.681M Shares 3,589,186 Est. Cost Unrealized
EYPT EYEPOINT INC 0.2%
Value $3.335M Shares 258,739 Est. Cost Unrealized
THC TENET HEALTHCARE CORP 1.4%
Value $23.59M Shares 125,000 Est. Cost Unrealized
JSPR JASPER THERAPEUTICS INC 0.1%
Value $964K Shares 1,100,726 Est. Cost Unrealized
SMMT SUMMIT THERAPEUTICS INC 0.8%
Value $13.46M Shares 710,000 Est. Cost Unrealized
ZLAB ZAI LAB LTD 0.9%
Value $15.32M Shares 814,707 Est. Cost Unrealized
AMLX AMYLYX PHARMACEUTICALS INC 0.4%
Value $6.947M Shares 499,764 Est. Cost Unrealized
TMO THERMO FISHER SCIENTIFIC INC 0.3%
Value $4.915M Shares 10,000 Est. Cost Unrealized
RCUS ARCUS BIOSCIENCES INC 0.2%
Value $3.888M Shares 180,000 Est. Cost Unrealized
ARDX ARDELYX INC 0.8%
Value $13.77M Shares 2,299,473 Est. Cost Unrealized
MLTX MOONLAKE IMMUNOTHERAPEUTICS 0.1%
Value $1.15M Shares 61,700 Est. Cost Unrealized
CORT CORCEPT THERAPEUTICS INC 0.1%
Value $2.026M Shares 50,250 Est. Cost Unrealized
IMNM IMMUNOME INC 0.4%
Value $7.603M Shares 347,666 Est. Cost Unrealized
SION SIONNA THERAPEUTICS INC 0.2%
Value $3.986M Shares 99,429 Est. Cost Unrealized
TEVA TEVA PHARMACEUTICAL INDS LTD 0.1%
Value $1.37M Shares 45,500 Est. Cost Unrealized
NGNE NEUROGENE INC 0.1%
Value $2.103M Shares 104,339 Est. Cost Unrealized
REGN REGENERON PHARMACEUTICALS 0.5%
Value $7.804M Shares 10,100 Est. Cost Unrealized