Rock Springs Capital Management LP Diversified Active

Location: Baltimore, MD

CIK: 0001595725 · Show all filings

Period: Q3 2023 (← Previous) (Next →)

Filing Date: Nov 14, 2023

Total Value: $3.733B (99.8% shares, 0.2% debt)

Holdings (120)

HUM HUMANA INC 5.7%
Value $212M Shares 436,500 Est. Cost $373.18 Unrealized +22.4%
IMCR IMMUNOCORE HLDGS PLC 4.1%
Value $153M Shares 2,943,710 Est. Cost $42.88 Unrealized
AGL AGILON HEALTH INC 3.9%
Value $147M Shares 8,292,500 Est. Cost $33.37 Unrealized -45.9%
NBIX NEUROCRINE BIOSCIENCES INC 3.7%
Value $139M Shares 1,236,000 Est. Cost $78.19 Unrealized +34.7%
BLUEPRINT MEDICINES CORP 3.6%
Value $135M Shares 2,685,294 Est. Cost $60.87 Unrealized
ARGX ARGENX SE 3.4%
Value $127M Shares 259,000 Est. Cost $153.41 Unrealized
PEN PENUMBRA INC 3.3%
Value $122M Shares 503,750 Est. Cost $176.21 Unrealized +57.6%
UNH UNITEDHEALTH GROUP INC 3.1%
Value $116M Shares 230,000 Est. Cost $219.29 Unrealized +114.3%
EVH EVOLENT HEALTH INC 2.8%
Value $105M Shares 3,865,000 Est. Cost $24.98 Unrealized +11.3%
ISRG INTUITIVE SURGICAL INC 2.3%
Value $87.25M Shares 298,500 Est. Cost $264.69 Unrealized +18.0%
KARUNA THERAPEUTICS INC 2.3%
Value $85.46M Shares 505,433 Est. Cost $94.75 Unrealized
IDXX IDEXX LABS INC 2.3%
Value $85.05M Shares 194,500 Est. Cost $335.38 Unrealized +48.7%
SEAGEN INC 2.3%
Value $84.9M Shares 400,200 Est. Cost $158.76 Unrealized
WST WEST PHARMACEUTICAL SVSC INC 2.0%
Value $75.79M Shares 202,000 Est. Cost $294.97 Unrealized +30.3%
AKERO THERAPEUTICS INC 1.9%
Value $71.78M Shares 1,419,150 Est. Cost $30.42 Unrealized
EXAS EXACT SCIENCES CORP 1.9%
Value $69.47M Shares 1,018,250 Est. Cost $54.17 Unrealized +56.6%
AGIO AGIOS PHARMACEUTICALS INC 1.8%
Value $67.07M Shares 2,710,061 Est. Cost $40.40 Unrealized -34.5%
ALGN ALIGN TECHNOLOGY INC 1.8%
Value $66.25M Shares 217,000 Est. Cost $313.91 Unrealized +10.1%
ACHC ACADIA HEALTHCARE COMPANY IN 1.7%
Value $63.84M Shares 908,000 Est. Cost $51.17 Unrealized +46.0%
BSX BOSTON SCIENTIFIC CORP 1.6%
Value $61.25M Shares 1,160,000 Est. Cost $52.40 Unrealized +0.1%
PODD INSULET CORP 1.6%
Value $60.61M Shares 380,000 Est. Cost $185.50 Unrealized +20.7%
MIRM MIRUM PHARMACEUTICALS INC 1.5%
Value $57.54M Shares 1,820,733 Est. Cost $14.40 Unrealized +90.1%
CEREVEL THERAPEUTICS HLDNG I 1.5%
Value $55.21M Shares 2,529,116 Est. Cost $24.09 Unrealized
DXCM DEXCOM INC 1.5%
Value $54.49M Shares 584,000 Est. Cost $97.26 Unrealized +15.9%
RARE ULTRAGENYX PHARMACEUTICAL IN 1.4%
Value $52.64M Shares 1,476,441 Est. Cost $63.87 Unrealized -38.0%
ALNY ALNYLAM PHARMACEUTICALS INC 1.3%
Value $49.5M Shares 279,500 Est. Cost $99.88 Unrealized +91.3%
MIRATI THERAPEUTICS INC 1.3%
Value $49.28M Shares 1,131,207 Est. Cost $69.12 Unrealized
SRPT SAREPTA THERAPEUTICS INC 1.3%
Value $47.52M Shares 392,000 Est. Cost $62.74 Unrealized +80.2%
EW EDWARDS LIFESCIENCES CORP 1.2%
Value $44.84M Shares 647,300 Est. Cost $62.58 Unrealized +28.4%
FRPT FRESHPET INC 1.2%
Value $43.65M Shares 662,500 Est. Cost $60.72 Unrealized +18.1%
XENE XENON PHARMACEUTICALS INC 1.1%
Value $40.24M Shares 1,178,002 Est. Cost $22.63 Unrealized +65.3%
ASND ASCENDIS PHARMA A/S 1.1%
Value $39.84M Shares 425,500 Est. Cost $85.24 Unrealized
RYTM RHYTHM PHARMACEUTICALS INC 1.0%
Value $36.61M Shares 1,597,123 Est. Cost $15.80 Unrealized +41.8%
PHR PHREESIA INC 0.9%
Value $33.18M Shares 1,776,391 Est. Cost $28.24 Unrealized -4.7%
IRTC IRHYTHM TECHNOLOGIES INC 0.9%
Value $33.06M Shares 350,750 Est. Cost $69.45 Unrealized +46.4%
PCRX PACIRA BIOSCIENCES INC 0.9%
Value $32.38M Shares 1,055,500 Est. Cost $48.41 Unrealized -25.5%
ACCOLADE INC 0.8%
Value $30.82M Shares 2,913,000 Est. Cost $21.45 Unrealized
LEGN LEGEND BIOTECH CORP 0.8%
Value $30.78M Shares 458,265 Est. Cost $40.20 Unrealized
ZLAB ZAI LAB LTD 0.8%
Value $30.07M Shares 1,237,023 Est. Cost $56.75 Unrealized
PRTA PROTHENA CORP PLC 0.8%
Value $29.64M Shares 614,298 Est. Cost $17.26 Unrealized +244.1%
HORIZON THERAPEUTICS PUB L 0.8%
Value $29.56M Shares 255,500 Est. Cost $83.28 Unrealized
SHOCKWAVE MED INC 0.8%
Value $29.37M Shares 147,500 Est. Cost $106.01 Unrealized
ABCAM PLC 0.8%
Value $28.85M Shares 1,275,000 Est. Cost $19.14 Unrealized
MDGL MADRIGAL PHARMACEUTICALS INC 0.8%
Value $28.68M Shares 196,369 Est. Cost $51.77 Unrealized +263.5%
AMLX AMYLYX PHARMACEUTICALS INC 0.8%
Value $28.29M Shares 1,545,016 Est. Cost $31.47 Unrealized -32.8%
ACRS ACLARIS THERAPEUTICS INC 0.7%
Value $27.13M Shares 3,960,449 Est. Cost $10.84 Unrealized -21.2%
DYNAVAX TECHNOLOGIES CORP 0.7%
Value $26.79M Shares 1,813,758 Est. Cost $7.97 Unrealized
XLV SELECT SECTOR SPDR TR 0.7%
Value $25.75M Shares 200,000 Est. Cost $128.24 Unrealized
LFST LIFESTANCE HEALTH GROUP INC 0.7%
Value $25.21M Shares 3,670,000 Est. Cost $15.87 Unrealized -48.9%
IMVT IMMUNOVANT INC 0.7%
Value $24.74M Shares 644,344 Est. Cost $22.60 Unrealized 0.0%
OLINK HLDG AB 0.7%
Value $24.73M Shares 1,676,500 Est. Cost $22.11 Unrealized
AZTA AZENTA INC 0.6%
Value $23.97M Shares 477,500 Est. Cost $61.29 Unrealized -18.0%
BMRN BIOMARIN PHARMACEUTICAL INC 0.6%
Value $23.4M Shares 264,500 Est. Cost $85.70 Unrealized +3.8%
NEVRO CORP 0.6%
Value $23.29M Shares 1,211,600 Est. Cost $75.15 Unrealized
IMTX IMMATICS N.V 0.6%
Value $21.72M Shares 1,875,466 Est. Cost $9.14 Unrealized +30.5%
KYMR KYMERA THERAPEUTICS INC 0.6%
Value $20.91M Shares 1,504,351 Est. Cost $30.99 Unrealized -35.1%
WRBY WARBY PARKER INC 0.6%
Value $20.73M Shares 1,575,000 Est. Cost $34.96 Unrealized -62.8%
RVMD REVOLUTION MEDICINES INC 0.5%
Value $20.07M Shares 725,152 Est. Cost $24.78 Unrealized +19.7%
MERUS N V 0.5%
Value $19.77M Shares 838,428 Est. Cost $25.15 Unrealized
AMGN AMGEN INC 0.5%
Value $18.28M Shares 68,000 Est. Cost $231.86 Unrealized 0.0%
BCRX BIOCRYST PHARMACEUTICALS INC 0.5%
Value $18.06M Shares 2,551,226 Est. Cost $10.39 Unrealized -30.8%
IRON DISC MEDICINE INC 0.5%
Value $17.08M Shares 363,468 Est. Cost $47.82 Unrealized +4.6%
TVTX TRAVERE THERAPEUTICS INC 0.4%
Value $16.16M Shares 1,807,742 Est. Cost $21.49 Unrealized -34.3%
INOZYME PHARMA INC 0.4%
Value $15.46M Shares 3,681,174 Est. Cost $9.28 Unrealized
CLDX CELLDEX THERAPEUTICS INC NEW 0.4%
Value $13.76M Shares 500,101 Est. Cost $30.25 Unrealized +3.6%
FOLD AMICUS THERAPEUTICS INC 0.3%
Value $12.94M Shares 1,063,806 Est. Cost $11.48 Unrealized +12.4%
COLL COLLEGIUM PHARMACEUTICAL INC 0.3%
Value $12.56M Shares 562,000 Est. Cost $15.97 Unrealized +42.8%
IMMUNOGEN INC 0.3%
Value $12.05M Shares 759,365 Est. Cost $16.31 Unrealized
ABOS ACUMEN PHARMACEUTICALS INC 0.3%
Value $11.67M Shares 2,812,579 Est. Cost $6.18 Unrealized 0.0%
MLYS MINERALYS THERAPEUTICS INC 0.3%
Value $11.1M Shares 1,167,492 Est. Cost $16.83 Unrealized -22.5%
CMPX COMPASS THERAPEUTICS INC 0.3%
Value $10.86M Shares 5,513,788 Est. Cost $3.31 Unrealized -25.3%
KRYS KRYSTAL BIOTECH INC 0.3%
Value $10.5M Shares 90,560 Est. Cost $114.33 Unrealized +6.7%
MREO MEREO BIOPHARMA GROUP PLC 0.3%
Value $9.903M Shares 7,676,481 Est. Cost $2.58 Unrealized
EDAP EDAP TMS S A 0.3%
Value $9.547M Shares 1,360,000 Est. Cost $7.66 Unrealized
INSP INSPIRE MED SYS INC 0.2%
Value $8.831M Shares 44,500 Est. Cost $252.20 Unrealized 0.0%
RENEO PHARMACEUTICALS INC 0.2%
Value $8.705M Shares 1,143,185 Est. Cost $9.31 Unrealized
PLRX PLIANT THERAPEUTICS INC 0.2%
Value $8.518M Shares 491,221 Est. Cost $28.47 Unrealized -39.1%
LUNG PULMONX CORP 0.2%
Value $6.739M Shares 652,400 Est. Cost $45.31 Unrealized -74.4%
ICOSAVAX INC 0.2%
Value $6.73M Shares 868,409 Est. Cost $26.02 Unrealized
SGMT SAGIMET BIOSCIENCES INC 0.2%
Value $6.498M Shares 738,355 Est. Cost $13.31 Unrealized 0.0%
AURA AURA BIOSCIENCES INC 0.2%
Value $6.484M Shares 722,896 Est. Cost $17.87 Unrealized -39.8%
SPRUCE BIOSCIENCES INC 0.2%
Value $6.166M Shares 2,728,125 Est. Cost $15.23 Unrealized
RLAY RELAY THERAPEUTICS INC 0.2%
Value $5.668M Shares 673,966 Est. Cost $33.24 Unrealized -67.6%
MGNX MACROGENICS INC 0.1%
Value $5.493M Shares 1,178,796 Est. Cost $16.87 Unrealized -70.5%
NVAX NOVAVAX INC 0.1%
Value $4.689M Shares 647,700 Est. Cost $37.34 Unrealized -78.6%
MERSANA THERAPEUTICS INC 0.1%
Value $4.322M Shares 3,403,133 Est. Cost $13.04 Unrealized
CYTK CYTOKINETICS INC 0.1%
Value $3.955M Shares 134,252 Est. Cost $41.02 Unrealized -18.8%
AUPH AURINIA PHARMACEUTICALS INC 0.1%
Value $3.726M Shares 479,540 Est. Cost $13.26 Unrealized -26.3%
GOSSAMER BIO INC 0.1%
Value $3.708M Shares 9,573,000 Est. Cost $1.01 Unrealized
FULC FULCRUM THERAPEUTICS INC 0.1%
Value $3.231M Shares 727,673 Est. Cost $14.24 Unrealized -69.3%
HCAT HEALTH CATALYST INC 0.1%
Value $3.112M Shares 307,500 Est. Cost $33.08 Unrealized -63.9%
XLO XILIO THERAPEUTICS INC 0.1%
Value $3.04M Shares 1,440,759 Est. Cost $14.70 Unrealized -81.9%
GOSS GOSSAMER BIO INC 0.1%
Value $2.721M Shares 3,266,960 Est. Cost $2.62 Unrealized -56.0%
BEAM BEAM THERAPEUTICS INC 0.1%
Value $2.68M Shares 111,430 Est. Cost $39.75 Unrealized -32.6%
TRAVERE THERAPEUTICS INC 0.1%
Value $2.677M Shares 3,250,000 Est. Cost $0.79 Unrealized
VIGIL NEUROSCIENCE INC 0.1%
Value $2.544M Shares 471,958 Est. Cost $7.03 Unrealized
BMEA BIOMEA FUSION INC 0.1%
Value $2.493M Shares 181,147 Est. Cost $15.37 Unrealized +17.3%
ADAPY ADAPTIMMUNE THERAPEUTICS PLC 0.1%
Value $2.175M Shares 2,787,845 Est. Cost $7.10 Unrealized
ESSA PHARMA INC 0.1%
Value $2.092M Shares 677,005 Est. Cost $22.67 Unrealized
APPLIED THERAPEUTICS INC 0.1%
Value $2.014M Shares 808,809 Est. Cost $23.69 Unrealized
SYRE AEGLEA BIOTHERAPEUTICS INC 0.0%
Value $1.673M Shares 136,556 Est. Cost $13.22 Unrealized 0.0%
NEUROCRINE BIOSCIENCES INC 0.0%
Value $1.498M Shares 1,000,000 Est. Cost $1.45 Unrealized
CYPH LEAP THERAPEUTICS INC 0.0%
Value $1.483M Shares 1,074,517 Est. Cost $5.02 Unrealized -53.7%
ACELYRIN INC 0.0%
Value $1.443M Shares 141,876 Est. Cost $20.90 Unrealized
FATE FATE THERAPEUTICS INC 0.0%
Value $1.298M Shares 612,215 Est. Cost $21.03 Unrealized -84.2%
CGEN COMPUGEN LTD 0.0%
Value $1.2M Shares 1,289,990 Est. Cost $6.12 Unrealized -82.0%
THESEUS PHARMACEUTICALS INC 0.0%
Value $1.176M Shares 437,329 Est. Cost $12.68 Unrealized
DSGN DESIGN THERAPEUTICS INC 0.0%
Value $1.087M Shares 460,391 Est. Cost $26.33 Unrealized -82.3%
VINCERX PHARMA INC 0.0%
Value $901K Shares 891,719 Est. Cost $12.19 Unrealized
KINNATE BIOPHARMA INC 0.0%
Value $568K Shares 405,811 Est. Cost $24.53 Unrealized
NEVRO CORP 0.0%
Value $472K Shares 500,000 Est. Cost $1.37 Unrealized
NKTX NKARTA INC 0.0%
Value $461K Shares 331,571 Est. Cost $26.66 Unrealized -92.9%
CRVO CERVOMED INC 0.0%
Value $370K Shares 80,033 Est. Cost $5.04 Unrealized 0.0%
INVITAE CORP 0.0%
Value $354K Shares 585,659 Est. Cost $19.23 Unrealized
TLPH ACELRX PHARMACEUTICALS INC 0.0%
Value $184K Shares 316,460 Est. Cost $2.81 Unrealized -66.0%
TEMPEST THERAPEUTICS INC 0.0%
Value $163K Shares 536,214 Est. Cost $7.50 Unrealized
ATRECA INC 0.0%
Value $94,620 Shares 362,530 Est. Cost $13.90 Unrealized
SPRO SPERO THERAPEUTICS INC 0.0%
Value $69,421 Shares 57,373 Est. Cost $11.75 Unrealized -88.2%
GAMIDA CELL LTD 0.0%
Value $53,575 Shares 52,015 Est. Cost $3.36 Unrealized
NUVATION BIO INC 0.0%
Value $13,403 Shares 134,028 Est. Cost $2.67 Unrealized