Rock Springs Capital Management LP Diversified Active

Location: Baltimore, MD

CIK: 0001595725 · Show all filings

Period: Q2 2023 (← Previous) (Next →)

Filing Date: Aug 14, 2023

Total Value: $4.203B (99.8% shares, 0.2% debt)

Holdings (123)

HUM HUMANA INC 5.0%
Value $210M Shares 470,000 Est. Cost $373.18 Unrealized +30.8%
IMCR IMMUNOCORE HLDGS PLC 4.3%
Value $182M Shares 3,028,410 Est. Cost $42.88 Unrealized
PODD INSULET CORP 3.8%
Value $161M Shares 559,000 Est. Cost $185.50 Unrealized +63.7%
AGL AGILON HEALTH INC 3.4%
Value $144M Shares 8,282,500 Est. Cost $33.37 Unrealized -32.6%
BLUEPRINT MEDICINES CORP 3.3%
Value $138M Shares 2,186,672 Est. Cost $63.29 Unrealized
ARGX ARGENX SE 3.2%
Value $136M Shares 350,000 Est. Cost $153.41 Unrealized
PEN PENUMBRA INC 3.0%
Value $126M Shares 366,000 Est. Cost $138.03 Unrealized +122.5%
NBIX NEUROCRINE BIOSCIENCES INC 2.9%
Value $121M Shares 1,279,500 Est. Cost $78.19 Unrealized +25.0%
EVH EVOLENT HEALTH INC 2.7%
Value $115M Shares 3,803,500 Est. Cost $24.94 Unrealized +29.7%
UNH UNITEDHEALTH GROUP INC 2.6%
Value $111M Shares 230,000 Est. Cost $219.29 Unrealized +112.0%
KARUNA THERAPEUTICS INC 2.5%
Value $107M Shares 493,527 Est. Cost $92.95 Unrealized
ISRG INTUITIVE SURGICAL INC 2.4%
Value $102M Shares 298,500 Est. Cost $264.69 Unrealized +14.3%
IDXX IDEXX LABS INC 2.3%
Value $97.68M Shares 194,500 Est. Cost $335.38 Unrealized +42.9%
EXAS EXACT SCIENCES CORP 2.1%
Value $88.59M Shares 943,500 Est. Cost $51.74 Unrealized +50.8%
CEREVEL THERAPEUTICS HLDNG I 1.9%
Value $79.92M Shares 2,513,916 Est. Cost $24.09 Unrealized
WST WEST PHARMACEUTICAL SVSC INC 1.8%
Value $77.26M Shares 202,000 Est. Cost $294.97 Unrealized +20.3%
SEAGEN INC 1.8%
Value $77.02M Shares 400,200 Est. Cost $158.76 Unrealized
ALGN ALIGN TECHNOLOGY INC 1.8%
Value $76.74M Shares 217,000 Est. Cost $313.91 Unrealized +1.4%
AGIO AGIOS PHARMACEUTICALS INC 1.8%
Value $76.07M Shares 2,686,167 Est. Cost $40.40 Unrealized -38.4%
AKERO THERAPEUTICS INC 1.7%
Value $72.4M Shares 1,550,754 Est. Cost $30.42 Unrealized
ACHC ACADIA HEALTHCARE COMPANY IN 1.7%
Value $72.31M Shares 908,000 Est. Cost $51.17 Unrealized +41.2%
ALNY ALNYLAM PHARMACEUTICALS INC 1.6%
Value $65.53M Shares 345,000 Est. Cost $99.88 Unrealized +98.5%
RARE ULTRAGENYX PHARMACEUTICAL IN 1.5%
Value $63.86M Shares 1,384,269 Est. Cost $65.48 Unrealized -29.2%
DXCM DEXCOM INC 1.5%
Value $63.03M Shares 490,500 Est. Cost $94.31 Unrealized +28.2%
EW EDWARDS LIFESCIENCES CORP 1.4%
Value $60.93M Shares 645,900 Est. Cost $62.58 Unrealized +38.9%
ABCAM PLC 1.4%
Value $58.85M Shares 2,405,000 Est. Cost $19.14 Unrealized
PRTA PROTHENA CORP PLC 1.2%
Value $51.45M Shares 753,462 Est. Cost $17.26 Unrealized +273.6%
HORIZON THERAPEUTICS PUB L 1.2%
Value $50.91M Shares 495,000 Est. Cost $83.28 Unrealized
SRPT SAREPTA THERAPEUTICS INC 1.2%
Value $48.67M Shares 425,000 Est. Cost $62.74 Unrealized +105.3%
MIRM MIRUM PHARMACEUTICALS INC 1.1%
Value $47.1M Shares 1,820,733 Est. Cost $14.40 Unrealized +84.7%
MDGL MADRIGAL PHARMACEUTICALS INC 1.1%
Value $46.02M Shares 199,218 Est. Cost $51.77 Unrealized +423.1%
XENE XENON PHARMACEUTICALS INC 1.1%
Value $45.35M Shares 1,178,002 Est. Cost $22.63 Unrealized +75.6%
FRPT FRESHPET INC 1.0%
Value $43.6M Shares 662,500 Est. Cost $60.72 Unrealized +7.9%
PCRX PACIRA BIOSCIENCES INC 1.0%
Value $41.47M Shares 1,035,000 Est. Cost $48.65 Unrealized -15.0%
ACRS ACLARIS THERAPEUTICS INC 1.0%
Value $41.08M Shares 3,961,849 Est. Cost $10.84 Unrealized -16.5%
MIRATI THERAPEUTICS INC 1.0%
Value $40.53M Shares 1,121,647 Est. Cost $69.12 Unrealized
PHR PHREESIA INC 1.0%
Value $40.47M Shares 1,305,000 Est. Cost $28.73 Unrealized +9.0%
ACCOLADE INC 0.9%
Value $37.99M Shares 2,820,000 Est. Cost $21.81 Unrealized
ASND ASCENDIS PHARMA A/S 0.9%
Value $37.98M Shares 425,500 Est. Cost $85.24 Unrealized
KYMR KYMERA THERAPEUTICS INC 0.8%
Value $34.2M Shares 1,487,551 Est. Cost $31.12 Unrealized -7.9%
ZLAB ZAI LAB LTD 0.8%
Value $33.9M Shares 1,222,423 Est. Cost $57.13 Unrealized
AMLX AMYLYX PHARMACEUTICALS INC 0.8%
Value $33.32M Shares 1,544,616 Est. Cost $31.47 Unrealized -14.2%
SHOCKWAVE MED INC 0.8%
Value $32.85M Shares 115,100 Est. Cost $79.81 Unrealized
IRTC IRHYTHM TECHNOLOGIES INC 0.8%
Value $32.28M Shares 309,450 Est. Cost $65.15 Unrealized +84.3%
LEGN LEGEND BIOTECH CORP 0.8%
Value $31.63M Shares 458,265 Est. Cost $40.20 Unrealized
OLINK HLDG AB 0.7%
Value $31.01M Shares 1,654,000 Est. Cost $22.21 Unrealized
NEVRO CORP 0.7%
Value $30.79M Shares 1,211,400 Est. Cost $75.15 Unrealized
IMTX IMMATICS N.V 0.7%
Value $29.27M Shares 2,536,144 Est. Cost $9.14 Unrealized +2.1%
CNMD CONMED CORP 0.7%
Value $27.86M Shares 205,000 Est. Cost $114.00 Unrealized +4.3%
XLV SELECT SECTOR SPDR TR 0.6%
Value $26.55M Shares 200,000 Est. Cost $128.24 Unrealized
LFST LIFESTANCE HEALTH GROUP INC 0.6%
Value $26.48M Shares 2,900,000 Est. Cost $17.93 Unrealized -53.6%
RYTM RHYTHM PHARMACEUTICALS INC 0.6%
Value $26.34M Shares 1,597,123 Est. Cost $15.80 Unrealized +14.3%
TVTX TRAVERE THERAPEUTICS INC 0.6%
Value $23.47M Shares 1,527,720 Est. Cost $22.84 Unrealized -20.4%
DYNAVAX TECHNOLOGIES CORP 0.6%
Value $23.43M Shares 1,813,758 Est. Cost $7.97 Unrealized
BMRN BIOMARIN PHARMACEUTICAL INC 0.5%
Value $22.93M Shares 264,500 Est. Cost $85.70 Unrealized +9.8%
AZTA AZENTA INC 0.5%
Value $21.93M Shares 469,900 Est. Cost $61.47 Unrealized -28.8%
MLYS MINERALYS THERAPEUTICS INC 0.5%
Value $19.91M Shares 1,167,492 Est. Cost $16.83 Unrealized -11.2%
INOZYME PHARMA INC 0.5%
Value $19.09M Shares 3,428,084 Est. Cost $9.66 Unrealized
RVMD REVOLUTION MEDICINES INC 0.4%
Value $18.8M Shares 702,712 Est. Cost $24.62 Unrealized -0.4%
BMEA BIOMEA FUSION INC 0.4%
Value $18.37M Shares 836,898 Est. Cost $15.37 Unrealized +103.6%
BCRX BIOCRYST PHARMACEUTICALS INC 0.4%
Value $17.58M Shares 2,497,193 Est. Cost $10.45 Unrealized -23.2%
CMPX COMPASS THERAPEUTICS INC 0.4%
Value $17.53M Shares 5,513,788 Est. Cost $3.31 Unrealized -5.1%
IRON DISC MEDICINE INC 0.4%
Value $16.14M Shares 363,468 Est. Cost $47.82 Unrealized -25.8%
WRBY WARBY PARKER INC 0.4%
Value $15.49M Shares 1,325,000 Est. Cost $39.11 Unrealized -70.9%
CHINOOK THERAPEUTICS INC 0.4%
Value $15.23M Shares 396,280 Est. Cost $15.86 Unrealized
CYTK CYTOKINETICS INC 0.3%
Value $14.6M Shares 447,600 Est. Cost $41.02 Unrealized -9.8%
BSX BOSTON SCIENTIFIC CORP 0.3%
Value $14.47M Shares 267,500 Est. Cost $52.23 Unrealized 0.0%
CLDX CELLDEX THERAPEUTICS INC NEW 0.3%
Value $14.31M Shares 421,615 Est. Cost $30.05 Unrealized +12.2%
COLL COLLEGIUM PHARMACEUTICAL INC 0.3%
Value $13.97M Shares 650,000 Est. Cost $15.97 Unrealized +42.2%
FOLD AMICUS THERAPEUTICS INC 0.3%
Value $13.36M Shares 1,063,806 Est. Cost $11.48 Unrealized +3.4%
MERUS N V 0.3%
Value $12.6M Shares 478,531 Est. Cost $26.33 Unrealized
AURA AURA BIOSCIENCES INC 0.3%
Value $12.59M Shares 1,019,757 Est. Cost $17.87 Unrealized -40.2%
HCAT HEALTH CATALYST INC 0.3%
Value $11.62M Shares 929,900 Est. Cost $33.08 Unrealized -64.0%
MERSANA THERAPEUTICS INC 0.3%
Value $11.2M Shares 3,403,133 Est. Cost $13.04 Unrealized
EDAP EDAP TMS S A 0.3%
Value $10.94M Shares 1,186,300 Est. Cost $7.76 Unrealized
BHVN BIOHAVEN LTD 0.2%
Value $9.607M Shares 401,624 Est. Cost $12.49 Unrealized +37.8%
MREO MEREO BIOPHARMA GROUP PLC 0.2%
Value $9.296M Shares 7,042,391 Est. Cost $2.70 Unrealized
PLRX PLIANT THERAPEUTICS INC 0.2%
Value $8.901M Shares 491,221 Est. Cost $28.47 Unrealized -16.9%
ICOSAVAX INC 0.2%
Value $8.623M Shares 868,409 Est. Cost $26.02 Unrealized
LUNG PULMONX CORP 0.2%
Value $8.553M Shares 652,400 Est. Cost $45.31 Unrealized -73.0%
RLAY RELAY THERAPEUTICS INC 0.2%
Value $8.465M Shares 673,966 Est. Cost $33.24 Unrealized -62.6%
RENEO PHARMACEUTICALS INC 0.2%
Value $7.499M Shares 1,143,185 Est. Cost $9.31 Unrealized
GH GUARDANT HEALTH INC 0.2%
Value $7.16M Shares 200,000 Est. Cost $42.73 Unrealized -32.8%
ANAB ANAPTYSBIO INC 0.2%
Value $6.949M Shares 341,637 Est. Cost $28.23 Unrealized -28.2%
MGNX MACROGENICS INC 0.1%
Value $6.009M Shares 1,123,096 Est. Cost $17.45 Unrealized -64.7%
SPRUCE BIOSCIENCES INC 0.1%
Value $5.865M Shares 2,728,125 Est. Cost $15.23 Unrealized
NVCR NOVOCURE LTD 0.1%
Value $5.188M Shares 125,000 Est. Cost $37.58 Unrealized +65.2%
AUPH AURINIA PHARMACEUTICALS INC 0.1%
Value $4.642M Shares 479,540 Est. Cost $13.26 Unrealized -21.7%
VIGIL NEUROSCIENCE INC 0.1%
Value $4.436M Shares 471,958 Est. Cost $7.03 Unrealized
KRYS KRYSTAL BIOTECH INC 0.1%
Value $4.097M Shares 34,901 Est. Cost $102.10 Unrealized 0.0%
THESEUS PHARMACEUTICALS INC 0.1%
Value $4.08M Shares 437,329 Est. Cost $12.68 Unrealized
NVAX NOVAVAX INC 0.1%
Value $3.988M Shares 536,700 Est. Cost $43.41 Unrealized -81.9%
PARATEK PHARMACEUTICALS INC 0.1%
Value $3.832M Shares 1,734,037 Est. Cost $6.08 Unrealized
XLO XILIO THERAPEUTICS INC 0.1%
Value $3.775M Shares 1,440,759 Est. Cost $14.70 Unrealized -79.3%
BEAM BEAM THERAPEUTICS INC 0.1%
Value $3.558M Shares 111,430 Est. Cost $39.75 Unrealized -18.4%
CYPH LEAP THERAPEUTICS INC 0.1%
Value $3.363M Shares 1,074,517 Est. Cost $5.02 Unrealized 0.0%
ACELYRIN INC 0.1%
Value $2.965M Shares 141,876 Est. Cost $20.90 Unrealized
FATE FATE THERAPEUTICS INC 0.1%
Value $2.914M Shares 612,215 Est. Cost $21.03 Unrealized -73.8%
DSGN DESIGN THERAPEUTICS INC 0.1%
Value $2.9M Shares 460,391 Est. Cost $26.33 Unrealized -76.8%
GOSSAMER BIO INC 0.1%
Value $2.889M Shares 9,573,000 Est. Cost $1.01 Unrealized
TRAVERE THERAPEUTICS INC 0.1%
Value $2.857M Shares 3,250,000 Est. Cost $0.79 Unrealized
BDTX BLACK DIAMOND THERAPEUTICS I 0.1%
Value $2.844M Shares 563,233 Est. Cost $2.04 Unrealized 0.0%
ADAPY ADAPTIMMUNE THERAPEUTICS PLC 0.1%
Value $2.579M Shares 2,787,845 Est. Cost $7.10 Unrealized
FULC FULCRUM THERAPEUTICS INC 0.1%
Value $2.401M Shares 727,673 Est. Cost $14.24 Unrealized -79.4%
KINNATE BIOPHARMA INC 0.1%
Value $2.263M Shares 746,973 Est. Cost $24.53 Unrealized
IMMUNOGEN INC 0.1%
Value $2.125M Shares 112,620 Est. Cost $18.87 Unrealized
INVITAE CORP 0.0%
Value $1.865M Shares 1,650,495 Est. Cost $19.23 Unrealized
ESSA PHARMA INC 0.0%
Value $1.791M Shares 663,317 Est. Cost $23.07 Unrealized
AEGLEA BIOTHERAPEUTICS INC 0.0%
Value $1.538M Shares 3,413,906 Est. Cost $4.00 Unrealized
CGEN COMPUGEN LTD 0.0%
Value $1.471M Shares 1,289,990 Est. Cost $6.12 Unrealized -85.8%
GAMIDA CELL LTD 0.0%
Value $1.38M Shares 715,023 Est. Cost $3.36 Unrealized
GOSS GOSSAMER BIO INC 0.0%
Value $1.32M Shares 1,100,274 Est. Cost $5.50 Unrealized -77.4%
NEUROCRINE BIOSCIENCES INC 0.0%
Value $1.276M Shares 1,000,000 Est. Cost $1.45 Unrealized
VINCERX PHARMA INC 0.0%
Value $1.159M Shares 891,719 Est. Cost $12.19 Unrealized
APPLIED THERAPEUTICS INC 0.0%
Value $999K Shares 780,791 Est. Cost $24.45 Unrealized
SPRO SPERO THERAPEUTICS INC 0.0%
Value $971K Shares 669,533 Est. Cost $11.75 Unrealized -85.4%
ALT ALTIMMUNE INC 0.0%
Value $788K Shares 223,255 Est. Cost $14.76 Unrealized -69.6%
NKTX NKARTA INC 0.0%
Value $726K Shares 331,571 Est. Cost $26.66 Unrealized -83.5%
TEMPEST THERAPEUTICS INC 0.0%
Value $681K Shares 536,214 Est. Cost $7.50 Unrealized
NEVRO CORP 0.0%
Value $462K Shares 500,000 Est. Cost $1.37 Unrealized
ATRECA INC 0.0%
Value $355K Shares 362,530 Est. Cost $13.90 Unrealized
TLPH ACELRX PHARMACEUTICALS INC 0.0%
Value $351K Shares 316,460 Est. Cost $2.81 Unrealized -68.9%
NUVATION BIO INC 0.0%
Value $22,167 Shares 134,028 Est. Cost $2.67 Unrealized