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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 2022-06-30, filed 2022-08-15, with 131 holding rows worth $3,436,080,000.

Accession
0001172661-22-001945
Filed
2022-08-15
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q2 2022

A holdings report, 131 entries on the cover page, a total value of $3,436,080,000 stated on the cover page (in dollars after the unit check, H1), rows summing to $3,436,080,000 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
HUMANA INC COM444859102Stock426,358$199,565,000thousands by filing date
AGILON HEALTH INC00857U107COM7,681,000$167,676,000thousands by filing date
UnitedHealth Group Inc91324P102COM268,500$137,910,000thousands by filing date
ARGENX SE SPONSORED ADR04016X101ADR350,000$132,608,000thousands by filing date
NEUROCRINE BIOSCIENCES INC64125C109COM1,122,500$109,421,000thousands by filing date
INSULET CORP COM45784P101Stock502,000$109,406,000thousands by filing date
IMMUNOCORE HLDGS PLC ADS45258D105ADR2,671,652$99,679,000thousands by filing date
EVOLENT HEALTH INC CL A30050B101Stock2,738,000$84,084,000thousands by filing date
ALIGN TECHNOLOGY INC COM016255101Stock354,500$83,900,000thousands by filing date
IDEXX LABS INC COM45168D104Stock223,750$78,476,000thousands by filing date
ULTRAGENYX PHARMACEUTICAL IN90400D108COM1,093,030$65,210,000thousands by filing date
AGIOS PHARMACEUTICALS INC00847X104COM2,928,458$64,924,000thousands by filing date
SIERRA ONCOLOGY INC82640U404CMN1,174,786$64,601,000thousands by filing date
Intuitive Surgical,Inc.46120E602COM298,500$59,912,000thousands by filing date
HORIZON THERAPEUTICS PLCG46188101SHS746,000$59,501,000thousands by filing date
PACIRA BIOSCIENCES INC COM695127100Stock1,017,500$59,320,000thousands by filing date
EDWARDS LIFESCIENCES CORP COM28176E108Stock602,000$57,244,000thousands by filing date
MIRATI THERAPEUTICS INC60468T105COM844,977$56,723,000thousands by filing date
KARUNA THERAPEUTICS INC48576A100COM441,893$55,904,000thousands by filing date
ACLARIS THERAPEUTICS INC COM00461U105Stock3,927,149$54,823,000thousands by filing date
ACADIA HEALTHCARE COMPANY INC COM00404A109Stock753,500$50,959,000thousands by filing date
PENUMBRA INC COM70975L107Stock401,500$49,995,000thousands by filing date
BLUEPRINT MEDICINES CORP09627Y109COM979,174$49,458,000thousands by filing date
ALNYLAM PHARMACEUTICALS INC COM02043Q107Stock332,500$48,495,000thousands by filing date
SEAGEN INC81181C104COM272,000$48,128,000thousands by filing date
CEREVEL THERAPEUTICS HLDNG I15678U128COM1,767,141$46,723,000thousands by filing date
SHOCKWAVE MED INC82489T104COM240,500$45,976,000thousands by filing date
BAXTER INTL INC071813109COM701,600$45,064,000thousands by filing date
ZAI LAB LTD ADR98887Q104ADR1,215,900$42,167,000thousands by filing date
ASCENDIS PHARMA A/S DKK 1.0 AD04351P101SPONSORED ADR425,500$39,554,000thousands by filing date
DEXCOM INC COM252131107Stock472,800$35,238,000thousands by filing date
COVETRUS INC22304C100COM1,678,800$34,835,000thousands by filing date
XENON PHARMACEUTICALS INC COM98420N105Stock1,123,604$34,180,000thousands by filing date
NEVRO CORP64157F103COM773,300$33,894,000thousands by filing date
WEST PHARMACEUTICAL SVSC INC COM955306105Stock111,000$33,563,000thousands by filing date
MIRUM PHARMACEUTICALS INC604749101COM1,717,733$33,427,000thousands by filing date
FRESHPET INC COM358039105Stock637,600$33,085,000thousands by filing date
PHREESIA INC71944F106COM1,298,200$32,468,000thousands by filing date
SAREPTA THERAPEUTICS INC803607100COM428,000$32,083,000thousands by filing date
IRHYTHM HOLDINGS INC COM450056106Stock270,000$29,168,000thousands by filing date
Health Care Select Sector SPDR Fund81369Y209SHS200,000$25,648,000thousands by filing date
NOVAVAX INC670002401COM NEW475,100$24,434,000thousands by filing date
ABCAM PLC000380204ADR USD1,620,500$23,432,000thousands by filing date
TRAVERE THERAPEUTICS INC89422G107COM951,650$23,058,000thousands by filing date
MADRIGAL PHARMACEUTICALS INC COM558868105Stock317,485$22,726,000thousands by filing date
EXACT SCIENCES CORP COM30063P105Stock572,700$22,559,000thousands by filing date
BIOMARIN PHARMACEUTICAL INC09061G101COM264,500$21,919,000thousands by filing date
CONMED CORP COM207410101Stock223,000$21,354,000thousands by filing date
DYNAVAX TECHNOLOGIES CORP268158201COM NEW1,681,458$21,170,000thousands by filing date
TURNING PT THERAPEUTICS90041T108COM271,787$20,452,000thousands by filing date
LEGEND BIOTECH CORP52490G102SPONSORED ADS355,567$19,556,000thousands by filing date
CINCOR PHARMA INC17240Y109COM1,021,159$19,239,000thousands by filing date
Mersana Therapeutics Inc59045L106Common Stock4,075,958$18,831,000thousands by filing date
AMYLYX PHARMACEUTICALS INC03237H101COM974,107$18,761,000thousands by filing date
OLINK HLDG AB680710100ADR1,231,800$18,723,000thousands by filing date
PROTHENA CORP PLC SHSG72800108Stock678,462$18,420,000thousands by filing date
PROMETHEUS BIOSCIENCES INC74349U108COM644,507$18,194,000thousands by filing date
ACCOLADE INC00437E102COM2,200,000$16,280,000thousands by filing date
CYTOKINETICS INC23282W605COM NEW400,000$15,716,000thousands by filing date
BIOCRYST PHARMACEUTICALS INC COM09058V103Stock1,461,091$15,458,000thousands by filing date
KYMERA THERAPEUTICS INC501575104COM775,879$15,277,000thousands by filing date
WARBY PARKER INC93403J106CL A COM1,273,500$14,340,000thousands by filing date
AURA BIOSCIENCES INC05153U107COMMON STOCK1,008,814$14,295,000thousands by filing date
COMPASS THERAPEUTICS INC20454B104COM5,328,088$14,119,000thousands by filing date
HEALTH CATALYST INC42225T107COM945,400$13,699,000thousands by filing date
BIOMEA FUSION INC09077A106CMN1,085,740$13,007,000thousands by filing date
COLLEGIUM PHARMACEUTICAL INC19459J104COM725,000$12,847,000thousands by filing date
INOZYME PHARMA INC45790W108COM2,640,056$12,593,000thousands by filing date
NOVOCURE LTDG6674U108ORD SHS175,000$12,163,000thousands by filing date
ARVINAS INC04335A105COM280,100$11,789,000thousands by filing date
AZENTA INC114340102COM162,000$11,680,000thousands by filing date
ANAPTYSBIO INC032724106COM572,300$11,618,000thousands by filing date
LIFESTANCE HEALTH GROUP INC53228F101COM2,000,000$11,120,000thousands by filing date
EPIZYME INC29428V104COM7,485,543$11,004,000thousands by filing date
AMICUS THERAPEUTICS INC03152W109COM1,012,506$10,874,000thousands by filing date
RELAY THERAPEUTICS INC COM75943R102Stock618,267$10,356,000thousands by filing date
PULMONX CORP745848101COM702,400$10,339,000thousands by filing date
IMMATICS N.VN44445109SHS1,127,970$9,825,000thousands by filing date
ORION ACQUISITION CORP68626A207UNIT 02/19/20261,000,000$9,810,000thousands by filing date
AMRYT PHARMA LTD - SPNR ADR03217L106COMMON EQUITY1,312,625$9,175,000thousands by filing date
CELLDEX THERAPEUTICS INC NEW15117B202COM NEW335,477$9,044,000thousands by filing date
CHINOOK THERAPEUTICS INC16961L106COM507,512$8,876,000thousands by filing date
INVITAE CORP46185L103COM3,494,721$8,527,000thousands by filing date
AURINIA PHARMACEUTICALS INC COM05156V102Stock815,126$8,192,000thousands by filing date
GUARDANT HEALTH INC COM40131M109Stock200,000$8,068,000thousands by filing date
KINNATE BIOPHARMA INC49705R105COM618,384$7,798,000thousands by filing date
VERVE THERAPEUTICS INC92539P101COM504,037$7,702,000thousands by filing date
NKARTA INC65487U108COMMON STOCK616,277$7,593,000thousands by filing date
GOSSAMER BIO INC38341PAA0NOTE 5.000% 6/09,573,000$7,156,000thousands by filing dateprincipal
MEREO BIOPHARMA GROUP PLC589492107CMN6,230,275$6,978,000thousands by filing date
DESIGN THERAPEUTICS INC25056L103COM460,391$6,445,000thousands by filing date
AKERO THERAPEUTICS INC00973Y108COM679,514$6,421,000thousands by filing date
EDAP TMS S A268311107SPONSORED ADR910,000$6,188,000thousands by filing date
RHYTHM PHARMACEUTICALS INC76243J105COM1,403,298$5,824,000thousands by filing date
F-STAR THERAPEUTICS INC30315R107COM751,889$4,707,000thousands by filing date
EQRX INC26886C107COM1,000,000$4,690,000thousands by filing date
ICOSAVAX INC45114M109COM761,557$4,364,000thousands by filing date
BEAM THERAPEUTICS INC07373V105COM111,430$4,313,000thousands by filing date
LEAP THERAPEUTICS INC52187K101COM3,652,947$4,201,000thousands by filing date
ADAPTIMMUNE THERAPEUTICS PLC00653A107SPONDS ADR2,357,544$4,008,000thousands by filing date
Xilio Therapeutics Inc.98422T100COM1,362,878$3,980,000thousands by filing date
GAMIDA CELL LTDM47364100SHS2,175,000$3,850,000thousands by filing date
PARATEK PHARMACEUTICALS INC699374302Equity1,734,037$3,347,000thousands by filing date
TRAVERE THERAPEUTICS INC761299AB2NOTE 2.500% 9/13,250,000$3,221,000thousands by filing dateprincipal
BCLS ACQUISITION CORPG0904B105CMN309,000$3,059,000thousands by filing date
RENEO PHARMACEUTICALS INC75974E103COM1,143,185$3,029,000thousands by filing date
SPRUCE BIOSCIENCES INC85209E109COM1,622,689$2,823,000thousands by filing date
MACROGENICS INC556099109COM954,728$2,816,000thousands by filing date
FATE THERAPEUTICS INC31189P102COM110,000$2,726,000thousands by filing date
THESEUS PHARMACEUTICALS INC88369M101COM437,329$2,418,000thousands by filing date
COMPUGEN LTDM25722105ORD1,289,990$2,386,000thousands by filing date
JIYA ACQUISITION CORP47760M102CMN206,200$2,037,000thousands by filing date
FUSION PHARMACEUTICALS INC36118A100COM809,854$2,017,000thousands by filing date
PRELUDE THERAPEUTICS INC74065P101CMN368,959$1,926,000thousands by filing date
FULCRUM THERAPEUTICS INC359616109COMMON STOCK384,590$1,884,000thousands by filing date
Tempest Therapeutics, Inc.87978U108Common Stock823,654$1,771,000thousands by filing date
PHASEBIO PHARMACEUTICALS INC717224109COM2,774,869$1,665,000thousands by filing date
ESSA PHARMA INC29668H708COM NEW524,944$1,654,000thousands by filing date
AEGLEA BIOTHERAPEUTICS INC00773J103COM3,072,034$1,552,000thousands by filing date
ACELRX PHARMACEUTICALS INC00444T100COM6,329,202$1,546,000thousands by filing date
RADIUS HEALTH INC750469AA6NOTE1,500,000$1,473,000thousands by filing dateprincipal
THERAVANCE BIOPHARMA88339KAA0NOTE 3.250%11/01,500,000$1,381,000thousands by filing dateprincipal
NEUROCRINE BIOSCIENCES INC64125CAD1NOTE 2.250% 5/11,000,000$1,328,000thousands by filing dateprincipal
VIGIL NEUROSCIENCE INC92673K108COM471,958$1,218,000thousands by filing date
VINCERX PHARMA INC92731L106COM NEW814,194$1,075,000thousands by filing date
IMARA INC45249V107COM842,402$1,028,000thousands by filing date
ATRECA INC04965G109COM462,530$828,000thousands by filing date
Applied Therapeutics Inc03828A101Common Stock701,680$665,000thousands by filing date
SPERO THERAPEUTICS INC84833T103COM770,710$571,000thousands by filing date
NEVRO CORP64157FAC7NOTE 2.750% 4/0500,000$466,000thousands by filing dateprincipal
NUVATION BIO INC67080N119WARR134,028$38,000thousands by filing date

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001172661-22-001945this filing2022-08-15acceptance time not in the bulk data set