Rock Springs Capital Management LP Diversified Active

CIK: 0001595725 · Show all filings

Period: Q2 2016 (← Previous) (Next →)

Filing Date: Aug 15, 2016

Total Value ($000): $1,350,771 (98.7% shares, 1.3% debt)

Holdings (137)

AETNA INC NEW 4.0%
Value ($000) $53,749 Shares 440,100 Est. Cost $102.02 Unrealized
ACHC ACADIA HEALTHCARE COMPANY IN 3.4%
Value ($000) $46,370 Shares 837,000 Est. Cost $63.48 Unrealized -7.9%
ALLERGAN PLC 3.1%
Value ($000) $41,850 Shares 181,100 Est. Cost $298.67 Unrealized
TESARO INC 3.0%
Value ($000) $40,344 Shares 480,000 Est. Cost $49.42 Unrealized
PFE PFIZER INC 2.8%
Value ($000) $37,175 Shares 1,055,800 Est. Cost $20.09 Unrealized +4.8%
HCA HCA HOLDINGS INC 2.5%
Value ($000) $33,114 Shares 430,000 Est. Cost $62.20 Unrealized +18.0%
RADIUS HEALTH INC 2.4%
Value ($000) $31,881 Shares 867,500 Est. Cost $44.52 Unrealized
SPARK THERAPEUTICS INC 2.3%
Value ($000) $31,189 Shares 610,000 Est. Cost $58.24 Unrealized
ISRG INTUITIVE SURGICAL INC 2.2%
Value ($000) $29,102 Shares 44,000 Est. Cost $51.44 Unrealized +36.8%
GILD GILEAD SCIENCES INC 2.1%
Value ($000) $28,671 Shares 343,700 Est. Cost $55.61 Unrealized +12.8%
ADVANCED ACCELERATOR APPLIC 2.1%
Value ($000) $27,846 Shares 921,000 Est. Cost $31.31 Unrealized
ALEXION PHARMACEUTICALS INC 2.0%
Value ($000) $27,497 Shares 235,500 Est. Cost $157.20 Unrealized
CIGNA CORPORATION 2.0%
Value ($000) $26,468 Shares 206,800 Est. Cost $112.95 Unrealized
WELLCARE HEALTH PLANS INC 1.9%
Value ($000) $25,157 Shares 234,500 Est. Cost $79.73 Unrealized
CELGENE CORP 1.9%
Value ($000) $25,101 Shares 254,500 Est. Cost $118.41 Unrealized
GW PHARMACEUTICALS PLC 1.8%
Value ($000) $24,724 Shares 270,000 Est. Cost $84.66 Unrealized
MEDICINES CO 1.7%
Value ($000) $22,885 Shares 680,500 Est. Cost $32.97 Unrealized
SHIRE PLC 1.6%
Value ($000) $22,097 Shares 120,042 Est. Cost $184.08 Unrealized
LLY LILLY ELI & CO 1.6%
Value ($000) $21,735 Shares 276,000 Est. Cost $60.42 Unrealized +6.1%
TEVA TEVA PHARMACEUTICAL INDS LTD 1.5%
Value ($000) $19,841 Shares 395,000 Est. Cost $57.61 Unrealized
NBIX NEUROCRINE BIOSCIENCES INC 1.4%
Value ($000) $18,612 Shares 409,500 Est. Cost $19.74 Unrealized +133.2%
ACRS ACLARIS THERAPEUTICS INC 1.4%
Value ($000) $18,470 Shares 1,000,000 Est. Cost $19.39 Unrealized +2.2%
HEARTWARE INTL INC 1.3%
Value ($000) $17,960 Shares 311,000 Est. Cost $60.65 Unrealized
PCRX PACIRA PHARMACEUTICALS INC 1.2%
Value ($000) $15,937 Shares 472,500 Est. Cost $61.18 Unrealized -19.7%
TBPH THERAVANCE BIOPHARMA INC 1.2%
Value ($000) $15,883 Shares 700,000 Est. Cost $19.05 Unrealized +13.4%
TMO THERMO FISHER SCIENTIFIC INC 1.1%
Value ($000) $14,806 Shares 100,200 Est. Cost $124.72 Unrealized +15.1%
MCK MCKESSON CORP 1.1%
Value ($000) $14,540 Shares 77,900 Est. Cost $158.21 Unrealized +2.8%
BMY BRISTOL MYERS SQUIBB CO 1.1%
Value ($000) $14,453 Shares 196,500 Est. Cost $45.57 Unrealized +10.8%
PEN PENUMBRA INC 1.1%
Value ($000) $14,429 Shares 242,500 Est. Cost $42.03 Unrealized +28.2%
JAZZ JAZZ PHARMACEUTICALS PLC 1.1%
Value ($000) $14,414 Shares 102,000 Est. Cost $152.54 Unrealized -3.4%
COLL COLLEGIUM PHARMACEUTICAL INC 1.1%
Value ($000) $14,398 Shares 1,215,000 Est. Cost $17.53 Unrealized -5.7%
AMGN AMGEN INC 1.1%
Value ($000) $14,302 Shares 94,000 Est. Cost $91.69 Unrealized +27.3%
MD MEDNAX INC 1.0%
Value ($000) $14,124 Shares 195,000 Est. Cost $78.20 Unrealized -12.1%
BIIB BIOGEN INC 1.0%
Value ($000) $13,941 Shares 57,650 Est. Cost $273.82 Unrealized -3.8%
THERAPEUTICSMD INC 1.0%
Value ($000) $13,388 Shares 1,575,000 Est. Cost $7.17 Unrealized
WALGREENS BOOTS ALLIANCE INC 1.0%
Value ($000) $13,357 Shares 160,400 Est. Cost $84.02 Unrealized
INCY INCYTE CORP 0.9%
Value ($000) $12,397 Shares 155,000 Est. Cost $61.66 Unrealized +25.9%
GLPG GALAPAGOS NV 0.9%
Value ($000) $11,649 Shares 210,000 Est. Cost $48.55 Unrealized
ARDX ARDELYX INC 0.8%
Value ($000) $11,131 Shares 1,275,000 Est. Cost $11.38 Unrealized -28.2%
PRTA PROTHENA CORP PLC 0.8%
Value ($000) $10,768 Shares 308,000 Est. Cost $29.28 Unrealized +48.7%
PRA HEALTH SCIENCES INC 0.8%
Value ($000) $10,565 Shares 253,000 Est. Cost $24.22 Unrealized
DERMIRA INC 0.8%
Value ($000) $10,381 Shares 354,900 Est. Cost $20.54 Unrealized
HEALTHSOUTH CORP 0.8%
Value ($000) $10,287 Shares 265,000 Est. Cost $41.93 Unrealized
ACHILLION PHARMACEUTICALS IN 0.8%
Value ($000) $10,238 Shares 1,312,500 Est. Cost $9.75 Unrealized
WRIGHT MED GROUP N V 0.7%
Value ($000) $9,517 Shares 547,900 Est. Cost $22.99 Unrealized
CLEARSIDE BIOMEDICAL INC 0.7%
Value ($000) $9,487 Shares 1,353,326 Est. Cost $7.01 Unrealized
RETROPHIN INC 0.7%
Value ($000) $9,286 Shares 521,400 Est. Cost $23.91 Unrealized
BMRN BIOMARIN PHARMACEUTICAL INC 0.7%
Value ($000) $8,791 Shares 113,000 Est. Cost $101.03 Unrealized -15.9%
XENOPORT INC 0.6%
Value ($000) $8,413 Shares 1,195,000 Est. Cost $5.57 Unrealized
ALKS ALKERMES PLC 0.6%
Value ($000) $8,406 Shares 194,500 Est. Cost $39.49 Unrealized +4.5%
EW EDWARDS LIFESCIENCES CORP 0.6%
Value ($000) $8,327 Shares 83,500 Est. Cost $28.19 Unrealized +21.4%
HOLX HOLOGIC INC 0.6%
Value ($000) $7,958 Shares 230,000 Est. Cost $34.63 Unrealized 0.0%
SERES THERAPEUTICS INC 0.6%
Value ($000) $7,611 Shares 262,000 Est. Cost $38.95 Unrealized
JUNO THERAPEUTICS INC 0.6%
Value ($000) $7,573 Shares 197,001 Est. Cost $52.64 Unrealized
ENVISION HEALTHCARE HLDGS IN 0.5%
Value ($000) $7,383 Shares 291,000 Est. Cost $34.11 Unrealized
INTRA CELLULAR THERAPIES INC 0.5%
Value ($000) $7,376 Shares 190,000 Est. Cost $39.54 Unrealized
VRTX VERTEX PHARMACEUTICALS INC 0.5%
Value ($000) $7,355 Shares 85,500 Est. Cost $84.91 Unrealized +1.8%
OPHTHOTECH CORP 0.5%
Value ($000) $7,272 Shares 142,500 Est. Cost $47.87 Unrealized
AMERICAN RENAL ASSOCIATES HO 0.5%
Value ($000) $7,243 Shares 250,000 Est. Cost $28.97 Unrealized
CORSICANTO LTD 0.5%
Value ($000) $7,214 Shares 7,000,000 Est. Cost $1.03 Unrealized
RARE ULTRAGENYX PHARMACEUTICAL IN 0.5%
Value ($000) $6,921 Shares 141,500 Est. Cost $60.93 Unrealized +6.2%
CHRS COHERUS BIOSCIENCES INC 0.5%
Value ($000) $6,756 Shares 400,000 Est. Cost $20.42 Unrealized -8.1%
ONC BEIGENE LTD 0.5%
Value ($000) $6,705 Shares 225,000 Est. Cost $29.31 Unrealized
RTI SURGICAL INC 0.5%
Value ($000) $6,677 Shares 1,860,000 Est. Cost $4.28 Unrealized
CRVS CORVUS PHARMACEUTICALS INC 0.5%
Value ($000) $6,417 Shares 450,000 Est. Cost $14.35 Unrealized -5.9%
INVITAE CORP 0.5%
Value ($000) $6,343 Shares 858,380 Est. Cost $11.67 Unrealized
FIVE PRIME THERAPEUTICS INC 0.5%
Value ($000) $6,327 Shares 153,000 Est. Cost $24.82 Unrealized
ATHENAHEALTH INC 0.5%
Value ($000) $6,314 Shares 45,750 Est. Cost $119.41 Unrealized
ADAPY ADAPTIMMUNE THERAPEUTICS PLC 0.5%
Value ($000) $6,235 Shares 765,001 Est. Cost $18.26 Unrealized
NOVAVAX INC 0.5%
Value ($000) $6,198 Shares 852,500 Est. Cost $5.52 Unrealized
CARDIOME PHARMA CORP 0.5%
Value ($000) $6,144 Shares 1,200,000 Est. Cost $8.88 Unrealized
EPIZYME INC 0.5%
Value ($000) $6,118 Shares 597,500 Est. Cost $17.74 Unrealized
MGNX MACROGENICS INC 0.4%
Value ($000) $6,073 Shares 225,000 Est. Cost $32.43 Unrealized -30.5%
HILL ROM HLDGS INC 0.4%
Value ($000) $6,054 Shares 120,000 Est. Cost $50.45 Unrealized
REGN REGENERON PHARMACEUTICALS 0.4%
Value ($000) $5,937 Shares 17,000 Est. Cost $404.27 Unrealized -5.3%
EGALET CORP 0.4%
Value ($000) $5,923 Shares 7,800,000 Est. Cost $0.76 Unrealized
PARATEK PHARMACEUTICALS INC 0.4%
Value ($000) $5,821 Shares 418,500 Est. Cost $14.86 Unrealized
NOVADAQ TECHNOLOGIES INC 0.4%
Value ($000) $5,461 Shares 555,000 Est. Cost $14.29 Unrealized
AVEXIS INC 0.4%
Value ($000) $5,428 Shares 142,758 Est. Cost $27.24 Unrealized
CGEN COMPUGEN LTD 0.4%
Value ($000) $5,314 Shares 820,000 Est. Cost $6.07 Unrealized +10.0%
CHINA CORD BLOOD CORP 0.4%
Value ($000) $5,060 Shares 880,000 Est. Cost $4.24 Unrealized
PROTEOSTASIS THERAPEUTICS IN 0.4%
Value ($000) $5,034 Shares 415,000 Est. Cost $9.64 Unrealized
INSM INSMED INC 0.4%
Value ($000) $4,905 Shares 497,500 Est. Cost $16.89 Unrealized -30.9%
INSYS THERAPEUTICS INC NEW 0.4%
Value ($000) $4,730 Shares 365,500 Est. Cost $30.55 Unrealized
ADURO BIOTECH INC 0.3%
Value ($000) $4,694 Shares 415,000 Est. Cost $28.61 Unrealized
ALDER BIOPHARMACEUTICALS INC 0.3%
Value ($000) $4,507 Shares 180,500 Est. Cost $24.71 Unrealized
TANDEM DIABETES CARE INC 0.3%
Value ($000) $4,486 Shares 595,000 Est. Cost $13.40 Unrealized
INTERSECT ENT INC 0.3%
Value ($000) $4,396 Shares 340,000 Est. Cost $25.85 Unrealized
AGN 5.5 03/01/18 A ALLERGAN PLC 0.3%
Value ($000) $4,164 Shares 5,000 Est. Cost $1045.60 Unrealized
PORTOLA PHARMACEUTICALS INC 0.3%
Value ($000) $4,130 Shares 175,000 Est. Cost $49.67 Unrealized
KITE PHARMA INC 0.3%
Value ($000) $4,000 Shares 80,000 Est. Cost $46.24 Unrealized
ASND ASCENDIS PHARMA A S 0.3%
Value ($000) $3,981 Shares 300,000 Est. Cost $17.20 Unrealized
RIGEL PHARMACEUTICALS INC 0.3%
Value ($000) $3,903 Shares 1,750,000 Est. Cost $2.70 Unrealized
OTONOMY INC 0.3%
Value ($000) $3,811 Shares 240,000 Est. Cost $21.56 Unrealized
FOLD AMICUS THERAPEUTICS INC 0.3%
Value ($000) $3,713 Shares 680,000 Est. Cost $11.11 Unrealized -37.1%
FIBROGEN INC 0.3%
Value ($000) $3,692 Shares 225,000 Est. Cost $25.28 Unrealized
AURIS MED HLDG AG 0.3%
Value ($000) $3,562 Shares 850,000 Est. Cost $3.68 Unrealized
MEDICINES CO 0.3%
Value ($000) $3,549 Shares 3,000,000 Est. Cost $1.14 Unrealized
INVA INNOVIVA INC 0.3%
Value ($000) $3,548 Shares 336,900 Est. Cost $11.83 Unrealized 0.0%
ENDOCHOICE HLDGS INC 0.3%
Value ($000) $3,479 Shares 710,000 Est. Cost $14.26 Unrealized
PRGO PERRIGO CO PLC 0.3%
Value ($000) $3,436 Shares 37,900 Est. Cost $143.33 Unrealized -27.7%
TESARO INC 0.2%
Value ($000) $3,362 Shares 40,000 Est. Cost $49.42 Unrealized
NABRIVA THERAPEUTICS AG 0.2%
Value ($000) $3,195 Shares 426,000 Est. Cost $9.10 Unrealized
AIMMUNE THERAPEUTICS INC 0.2%
Value ($000) $3,170 Shares 293,000 Est. Cost $22.58 Unrealized
MERUS N V 0.2%
Value ($000) $2,883 Shares 360,811 Est. Cost $7.99 Unrealized
1741046D STERIS PLC 0.2%
Value ($000) $2,750 Shares 40,000 Est. Cost $68.75 Unrealized
CIDARA THERAPEUTICS INC 0.2%
Value ($000) $2,578 Shares 250,000 Est. Cost $13.90 Unrealized
AEGLEA BIOTHERAPEUTICS INC 0.2%
Value ($000) $2,547 Shares 524,089 Est. Cost $4.86 Unrealized
NVCR NOVOCURE LTD 0.2%
Value ($000) $2,501 Shares 214,316 Est. Cost $23.86 Unrealized -47.5%
SRPT SAREPTA THERAPEUTICS INC 0.2%
Value ($000) $2,498 Shares 131,000 Est. Cost $29.74 Unrealized -37.9%
DYNAVAX TECHNOLOGIES CORP 0.2%
Value ($000) $2,406 Shares 165,000 Est. Cost $24.06 Unrealized
DBV TECHNOLOGIES S A 0.2%
Value ($000) $2,381 Shares 73,000 Est. Cost $33.59 Unrealized
NIVALIS THERAPEUTICS INC 0.2%
Value ($000) $2,249 Shares 489,000 Est. Cost $15.15 Unrealized
ASSEMBLY BIOSCIENCES INC 0.2%
Value ($000) $2,165 Shares 390,000 Est. Cost $12.30 Unrealized
GENOCEA BIOSCIENCES INC 0.1%
Value ($000) $1,968 Shares 480,000 Est. Cost $6.85 Unrealized
INOVALON HLDGS INC 0.1%
Value ($000) $1,878 Shares 104,302 Est. Cost $27.87 Unrealized
TETRAPHASE PHARMACEUTICALS I 0.1%
Value ($000) $1,828 Shares 425,000 Est. Cost $7.15 Unrealized
CLOVIS ONCOLOGY INC 0.1%
Value ($000) $1,715 Shares 125,000 Est. Cost $35.00 Unrealized
DIMENSION THERAPEUTICS INC 0.1%
Value ($000) $1,628 Shares 271,370 Est. Cost $11.28 Unrealized
GLOBAL BLOOD THERAPEUTICS IN 0.1%
Value ($000) $1,626 Shares 98,000 Est. Cost $33.88 Unrealized
EGALET CORP 0.1%
Value ($000) $1,488 Shares 300,000 Est. Cost $13.18 Unrealized
INTERCEPT PHARMACEUTICALS IN 0.1%
Value ($000) $1,427 Shares 10,000 Est. Cost $197.65 Unrealized
CHIASMA INC 0.1%
Value ($000) $1,423 Shares 492,500 Est. Cost $19.77 Unrealized
ANTHERA PHARMACEUTICALS INC 0.1%
Value ($000) $1,391 Shares 450,000 Est. Cost $4.67 Unrealized
RELYPSA INC 0.1%
Value ($000) $1,388 Shares 75,000 Est. Cost $18.51 Unrealized
SCYNEXIS INC 0.1%
Value ($000) $1,378 Shares 635,000 Est. Cost $7.42 Unrealized
VALEANT PHARMACEUTICALS INTL 0.1%
Value ($000) $1,331 Shares 66,100 Est. Cost $174.16 Unrealized
CERULEAN PHARMA INC 0.1%
Value ($000) $1,325 Shares 625,000 Est. Cost $5.94 Unrealized
ATYR PHARMA INC 0.1%
Value ($000) $1,205 Shares 433,500 Est. Cost $17.38 Unrealized
CERNER CORP 0.1%
Value ($000) $1,172 Shares 20,000 Est. Cost $58.60 Unrealized
SOPHIRIS BIO INC 0.1%
Value ($000) $1,054 Shares 490,000 Est. Cost $1.81 Unrealized
PBYI PUMA BIOTECHNOLOGY INC 0.1%
Value ($000) $983 Shares 33,000 Est. Cost $87.07 Unrealized -64.1%
WRIGHT MED GROUP INC 0.1%
Value ($000) $919 Shares 1,000,000 Est. Cost $0.90 Unrealized
BLUEBIRD BIO INC 0.1%
Value ($000) $866 Shares 20,000 Est. Cost $125.79 Unrealized
OREXIGEN THERAPEUTICS INC 0.1%
Value ($000) $711 Shares 1,653,000 Est. Cost $5.43 Unrealized
MIRNA THERAPEUTICS INC 0.0%
Value ($000) $639 Shares 150,000 Est. Cost $6.25 Unrealized
INFIQ INFINITY PHARMACEUTICALS INC 0.0%
Value ($000) $359 Shares 270,000 Est. Cost $11.28 Unrealized -58.6%