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13F-HR filed by Rock Springs Capital Management LP

Rock Springs Capital Management LP filed this 13F-HR for the quarter ended 2016-03-31, filed 2016-05-16, with 128 holding rows worth $1,193,502,000.

Accession
0001172661-16-003409
Filed
2016-05-16
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q1 2016

A holdings report, 128 entries on the cover page, a total value of $1,193,502,000 stated on the cover page (in dollars after the unit check, H1), rows summing to $1,193,502,000 with VALUE read as thousands by filing date, 13F file number 028-16048. The quarter's positions are built on this report. The resolved quarter.

The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).

Issuer as filedCUSIPClassAmountValueValue read asType
AETNA INC NEW00817Y108COM411,000$46,176,000thousands by filing date
ALLERGAN PLCG0177J108SHS171,000$45,833,000thousands by filing date
ACADIA HEALTHCARE COMPANY INC COM00404A109Stock749,500$41,305,000thousands by filing date
HCA Healthcare Inc40412C101COM430,000$33,562,000thousands by filing date
BAXALTA INC07177M103COM810,000$32,724,000thousands by filing date
ALEXION PHARMACEUTICALS INC015351109COM227,750$31,707,000thousands by filing date
Pfizer Inc.717081103COM1,038,300$30,775,000thousands by filing date
Gilead Sciences,Inc.375558103COM330,300$30,341,000thousands by filing date
ADVANCED ACCELERATOR APPLIC SPONSORED ADS00790T100ADR833,000$29,172,000thousands by filing date
RADIUS HEALTH INC750469207COM NEW808,500$25,419,000thousands by filing date
Intuitive Surgical,Inc.46120E602COM42,000$25,244,000thousands by filing date
CELGENE CORP151020104COM239,500$23,972,000thousands by filing date
WELLCARE HEALTH PLANS INC94946T106COM230,000$21,333,000thousands by filing date
TEVA PHARMACEUTICAL INDS LTD SPONSORED ADS881624209ADR395,000$21,136,000thousands by filing date
COLLEGIUM PHARMACEUTICAL INC19459J104COM1,145,000$20,782,000thousands by filing date
MEDICINES CO584688105COM632,000$20,079,000thousands by filing date
Eli Lilly and Company532457108COM276,000$19,875,000thousands by filing date
PACIRA BIOSCIENCES INC COM695127100Stock326,500$17,298,000thousands by filing date
SPARK THERAPEUTICS INC84652J103COM580,500$17,131,000thousands by filing date
ACLARIS THERAPEUTICS INC COM00461U105Stock895,500$16,970,000thousands by filing date
Elevance Health, Inc.036752103COM121,000$16,818,000thousands by filing date
CIGNA CORPORATION125509109COM122,000$16,743,000thousands by filing date
TESARO INC881569107COM379,500$16,709,000thousands by filing date
NEUROCRINE BIOSCIENCES INC64125C109COM404,500$15,998,000thousands by filing date
Thermo Fisher Scientific Inc.883556102COM100,200$14,187,000thousands by filing date
Amgen Inc.031162100COM94,000$14,093,000thousands by filing date
BIOGEN INC COM09062X103Stock53,150$13,836,000thousands by filing date
PROTHENA CORP PLC SHSG72800108Stock308,000$12,677,000thousands by filing date
PEDIATRIX MEDICAL GROUP INC58502B106COM195,000$12,601,000thousands by filing date
THERAVANCE BIOPHARMA INCG8807B106COM650,500$12,229,000thousands by filing date
MCKESSON CORP COM58155Q103Stock77,500$12,187,000thousands by filing date
JAZZ PHARMACEUTICALS PLC SHS USDG50871105Stock85,500$11,162,000thousands by filing date
Bristol-Myers Squibb Company110122108COM170,000$10,860,000thousands by filing date
PRA HEALTH SCIENCES INC69354M108COM253,000$10,818,000thousands by filing date
GW PHARMACEUTICALS PLC36197T103ADS147,000$10,606,000thousands by filing date
PENUMBRA INC COM70975L107Stock228,500$10,511,000thousands by filing date
WALGREENS BOOTS ALLIANCE INC931427108COM123,500$10,404,000thousands by filing date
THERAPEUTICSMD INC88338N107COM1,575,000$10,080,000thousands by filing date
ANACOR PHARMACEUTICALS INC032420101COM177,500$9,487,000thousands by filing date
INCYTE CORP COM45337C102Stock130,500$9,457,000thousands by filing date
ACHILLION PHARMACEUTICALS IN00448Q201COM1,220,000$9,418,000thousands by filing date
LAKEFRONT BIOTHERAPEUTICS NV36315X101SPON ADR210,000$8,782,000thousands by filing date
BIOMARIN PHARMACEUTICAL INC09061G101COM103,250$8,516,000thousands by filing date
ARDELYX INC039697107COM1,060,400$8,239,000thousands by filing date
WRIGHT MED GROUP N VN96617118ORD SHS490,000$8,134,000thousands by filing date
INOVALON HLDGS INC45781D101COM CL A427,300$7,914,000thousands by filing date
HEALTHSOUTH CORP421924309COM NEW208,000$7,827,000thousands by filing date
INVITAE CORP46185L103COM752,500$7,698,000thousands by filing date
JUNO THERAPEUTICS INC48205A109COM197,001$7,504,000thousands by filing date
ULTRAGENYX PHARMACEUTICAL IN90400D108COM118,500$7,502,000thousands by filing date
RTI BIOLOGICS INC74975N105COM1,860,000$7,440,000thousands by filing date
THE COOPER COMPANIES216648402COM NEW47,600$7,329,000thousands by filing date
EPIZYME INC29428V104COM589,000$7,139,000thousands by filing date
RETROPHIN INC761299106COM521,400$7,122,000thousands by filing date
SERES THERAPEUTICS INC81750R102COM262,000$6,959,000thousands by filing date
EDWARDS LIFESCIENCES CORP COM28176E108Stock76,000$6,704,000thousands by filing date
Vertex Pharmaceuticals Incorporated92532F100COM83,900$6,669,000thousands by filing date
ALKERMES PLCG01767105SHS194,500$6,650,000thousands by filing date
CORVUS PHARMACEUTICALS INC221015100COM456,887$6,625,000thousands by filing date
BEONE MEDICINES LTD SPONSORED ADS07725L102ADR225,000$6,595,000thousands by filing date
INTERSECT ENT INC46071F103COM340,000$6,460,000thousands by filing date
ATHENAHEALTH INC04685W103COMMON STOCK45,750$6,349,000thousands by filing date
ADAPTIMMUNE THERAPEUTICS PLC00653A107SPONDS ADR765,001$6,219,000thousands by filing date
NOVADAQ TECHNOLOGIES INC COMMON66987G102COM555,000$6,155,000thousands by filing date
HEARTWARE INTL INC422368100COM193,000$6,064,000thousands by filing date
DERMIRA INC24983L104COM290,000$5,997,000thousands by filing date
COHERUS ONCOLOGY INC19249H103COM282,000$5,987,000thousands by filing date
REGENERON PHARMACEUTICALS COM75886F107Stock16,500$5,947,000thousands by filing date
FIVE PRIME THERAPEUTICS INC.33830X104Common Stock144,500$5,871,000thousands by filing date
INSYS THERAPEUTICS INC45824V209COMMON STOCK365,500$5,844,000thousands by filing date
INSMED INC COM PAR $.01457669307Stock450,000$5,702,000thousands by filing date
ENVISION HEALTHCARE HLDGS IN29413U103COM266,000$5,426,000thousands by filing date
CHINA CORD BLOOD CORPG21107100COM880,000$5,342,000thousands by filing date
CHINOOK THERAPEUTICS INC.00739L101Common Stock415,000$5,316,000thousands by filing date
INTRA-CELLULAR THERAPIES INC46116X101COMMON STOCK187,500$5,213,000thousands by filing date
AMICUS THERAPEUTICS INC03152W109COM613,500$5,184,000thousands by filing date
ASCENDIS PHARMA A/S DKK 1.0 AD04351P101SPONSORED ADR270,000$5,009,000thousands by filing date
XENOPORT INC98411C100COM1,100,000$4,961,000thousands by filing date
Tandem Diabetes Care, Inc.875372104COM562,500$4,899,000thousands by filing date
CARDIOME PHARMA CORP14159U301COM NO PAR1,190,000$4,867,000thousands by filing date
ALLERGAN PLCG0177J116PFD CONV SER A5,000$4,585,000thousands by filing date
COMPUGEN LTDM25722105ORD820,000$4,576,000thousands by filing date
PROTEOSTASIS THERAPEUTICS IN74373B109COM470,000$4,531,000thousands by filing date
CHIASMA INC16706W102COM492,500$4,511,000thousands by filing date
NOVAVAX INC670002104COMMON STOCK852,500$4,399,000thousands by filing date
FIBROGEN INC31572Q808COM204,000$4,343,000thousands by filing date
MACROGENICS INC556099109COM225,000$4,219,000thousands by filing date
AIMMUNE THERAPEUTICS INC.00900T107Common Stock293,000$3,973,000thousands by filing date
AVEXIS INC05366U100COM142,758$3,889,000thousands by filing date
PERRIGO CO PLC SHSG97822103Stock30,000$3,838,000thousands by filing date
GENOCEA BIOSCIENCES INC372427104COM480,000$3,715,000thousands by filing date
KITE PHARMA INC49803L109COM80,000$3,673,000thousands by filing date
OTONOMY INC68906L105COM240,000$3,581,000thousands by filing date
PORTOLA PHARMACEUTICALS INC COM737010108Stock175,000$3,570,000thousands by filing date
MEDICINES CO584688AE5NOTE 2.500% 1/13,000,000$3,405,000thousands by filing dateprincipal
NABRIVA THERAPEUTICS AG62957M104SPONSORED ADR380,000$3,405,000thousands by filing date
PARATEK PHARMACEUTICALS INC699374302Equity223,000$3,383,000thousands by filing date
DYNAVAX TECHNOLOGIES CORP268158201COM NEW165,000$3,175,000thousands by filing date
CIDARA THERAPEUTICS INC COM NEW171757107Stock250,000$3,175,000thousands by filing date
NOVOCURE LTDG6674U108ORD SHS214,316$3,103,000thousands by filing date
ENDOCHOICE HLDGS INC COM29272U103COM590,000$3,074,000thousands by filing date
RIGEL PHARMACEUTICALS INC766559603COMMON STOCK1,464,050$3,045,000thousands by filing date
AURIS MED HLDG AGH03579101COM787,600$2,867,000thousands by filing date
SCYNEXIS INC COM NEW811292101Common Stock635,000$2,559,000thousands by filing date
SAREPTA THERAPEUTICS INC803607100COM131,000$2,557,000thousands by filing date
CLOVIS ONCOLOGY INC189464100COM125,000$2,400,000thousands by filing date
ALDER BIOPHARMACEUTICALS INC014339105COM97,500$2,388,000thousands by filing date
DBV TECHNOLOGIES S A23306J101ADR73,000$2,376,000thousands by filing date
VALEANT PHARMACEUTICALS INTL91911K102COM85,500$2,249,000thousands by filing date
OPHTHOTECH CORP683745103COM51,500$2,177,000thousands by filing date
DIMENSION THERAPEUTICS INC25433V105COM271,370$2,125,000thousands by filing date
EGALET CORP28226B104COM300,000$2,058,000thousands by filing date
NIVALIS THERAPEUTICS INC65481J109COM489,000$2,039,000thousands by filing date
ASSEMBLY BIOSCIENCES INC045396108COM390,000$1,958,000thousands by filing date
TETRAPHASE PHARMACEUTICALS INC88165N105COMMON STOCK400,000$1,852,000thousands by filing date
ATYR PHARMA INC002120103COM433,496$1,708,000thousands by filing date
CERULEAN PHARMA INC15708Q105COM625,000$1,694,000thousands by filing date
ANTHERA PHARMACEUTCLS INC03674U201Common equity shares450,000$1,629,000thousands by filing date
INFINITY PHARMACEUTICALS INC45665G303COM270,000$1,423,000thousands by filing date
INTERCEPT PHARMACEUTICALS IN45845P108COM10,000$1,285,000thousands by filing date
GLOBAL BLOOD THERAPEUTICS USD37890U108COM78,000$1,237,000thousands by filing date
OREXIGEN THERAPEUTICS INC686164104COMMON STOCK1,653,000$930,000thousands by filing date
PUMA BIOTECHNOLOGY INC74587V107COMMON STOCK31,500$925,000thousands by filing date
SOPHIRIS BIO INC F83578Q209FOREIGN CANADIAN628,563$905,000thousands by filing date
WRIGHT MED GROUP INC98235TAE7NOTE 2.000% 2/11,000,000$898,000thousands by filing dateprincipal
BLUEBIRD BIO INC09609G100COM20,000$850,000thousands by filing date
PORTOLA PHARMACEUTICALS INC COM737010108Stock35,000$714,000thousands by filing datecall
SYNLOGIC60470J103Stock150,000$656,000thousands by filing date

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001172661-16-003409this filing2016-05-16acceptance time not in the bulk data set