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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 2024-06-30, filed 2024-08-14, with 112 holding rows worth $3,322,377,700.

Accession
0001172661-24-003467
Filed
2024-08-14
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q2 2024

A holdings report, 112 entries on the cover page, a total value of $3,322,377,700 stated on the cover page (in dollars after the unit check, H1), rows summing to $3,322,377,700 with VALUE read as dollars as filed, 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
BLUEPRINT MEDICINES CORP09627Y109COM2,460,417$265,183,744dollars as filed
UnitedHealth Group Inc91324P102COM275,000$140,046,500dollars as filed
Intuitive Surgical,Inc.46120E602COM298,500$132,787,725dollars as filed
NEUROCRINE BIOSCIENCES INC64125C109COM940,000$129,409,800dollars as filed
Eli Lilly and Company532457108COM121,500$110,003,670dollars as filed
ARGENX SE SPONSORED ADR04016X101ADR229,250$98,586,670dollars as filed
ACADIA HEALTHCARE COMPANY INC COM00404A109Stock1,177,500$79,528,350dollars as filed
ULTRAGENYX PHARMACEUTICAL IN90400D108COM1,924,072$79,079,359dollars as filed
EVOLENT HEALTH INC CL A30050B101Stock4,077,500$77,961,800dollars as filed
MADRIGAL PHARMACEUTICALS INC COM558868105Stock245,499$68,779,000dollars as filed
Boston Scientific Corporation101137107COM817,500$62,955,675dollars as filed
FRESHPET INC COM358039105Stock480,000$62,107,200dollars as filed
ALNYLAM PHARMACEUTICALS INC COM02043Q107Stock250,000$60,750,000dollars as filed
MIRUM PHARMACEUTICALS INC604749101COM1,772,038$60,585,979dollars as filed
MERUS N VN5749R100COM1,001,073$59,233,489dollars as filed
IDEXX LABS INC COM45168D104Stock119,500$58,220,400dollars as filed
AGILON HEALTH INC00857U107COM8,900,000$58,206,000dollars as filed
DEXCOM INC COM252131107Stock500,000$56,690,000dollars as filed
HUMANA INC COM444859102Stock147,408$55,078,999dollars as filed
INSMED INC COM PAR $.01457669307Stock808,356$54,159,852dollars as filed
RHYTHM PHARMACEUTICALS INC76243J105COM1,280,493$52,577,043dollars as filed
CELLDEX THERAPEUTICS INC NEW15117B202COM NEW1,398,994$51,776,768dollars as filed
PHREESIA INC71944F106COM2,417,500$51,251,000dollars as filed
EDWARDS LIFESCIENCES CORP COM28176E108Stock550,000$50,803,500dollars as filed
XENON PHARMACEUTICALS INC COM98420N105Stock1,272,877$49,629,474dollars as filed
WEST PHARMACEUTICAL SVSC INC COM955306105Stock145,500$47,926,245dollars as filed
PENUMBRA INC COM70975L107Stock265,000$47,692,050dollars as filed
EXACT SCIENCES CORP COM30063P105Stock1,081,500$45,693,375dollars as filed
AGIOS PHARMACEUTICALS INC00847X104COM1,044,261$45,028,534dollars as filed
SAREPTA THERAPEUTICS INC803607100COM284,000$44,872,000dollars as filed
IRHYTHM HOLDINGS INC COM450056106Stock397,500$42,786,900dollars as filed
ASCENDIS PHARMA A/S DKK 1.0 AD04351P101SPONSORED ADR290,000$39,550,200dollars as filed
INSULET CORP COM45784P101Stock195,000$39,351,000dollars as filed
STRUCTURE THERAPEUTICS INC COMP86366E106EQUITY999,862$39,264,581dollars as filed
TRAVERE THERAPEUTICS INC89422G107COM4,482,265$36,844,218dollars as filed
AZENTA INC114340102COM696,000$36,623,520dollars as filed
REVOLUTION MEDICINES INC COM76155X100Stock943,195$36,605,398dollars as filed
KYMERA THERAPEUTICS INC501575104COM1,163,973$34,744,594dollars as filed
MEREO BIOPHARMA GROUP PLC589492107CMN9,283,492$33,420,571dollars as filed
WARBY PARKER INC93403J106CL A COM2,080,000$33,404,800dollars as filed
IMMUNOVANT INC45258J102COM1,185,654$31,301,266dollars as filed
ALIGN TECHNOLOGY INC COM016255101Stock127,500$30,782,325dollars as filed
AKERO THERAPEUTICS INC00973Y108COM1,074,261$25,202,163dollars as filed
Johnson & Johnson478160104COM170,000$24,847,200dollars as filed
LIFESTANCE HEALTH GROUP INC53228F101COM4,827,700$23,704,007dollars as filed
ZAI LAB LTD ADR98887Q104ADR1,297,873$22,492,139dollars as filed
PACIRA BIOSCIENCES INC COM695127100Stock785,000$22,458,850dollars as filed
LEGEND BIOTECH CORP52490G102SPONSORED ADS505,786$22,401,262dollars as filed
BIOCRYST PHARMACEUTICALS INC COM09058V103Stock3,619,258$22,367,014dollars as filed
NOVO-NORDISK A S ADR670100205ADR147,500$21,054,150dollars as filed
OSCAR HEALTH INC687793109CL A1,251,500$19,798,730dollars as filed
NUVALENT INC COM670703107Stock255,989$19,419,326dollars as filed
KRYSTAL BIOTECH INC COM501147102Stock105,569$19,386,691dollars as filed
INSPIRE MED SYS INC COM457730109Stock130,000$17,397,900dollars as filed
INOZYME PHARMA INC45790W108COM3,698,374$16,494,748dollars as filed
DYNE THERAPEUTICS INC COM26818M108Stock461,028$16,269,678dollars as filed
DYNAVAX TECHNOLOGIES CORP268158201COM NEW1,292,637$14,516,314dollars as filed
PHARVARIS NVN69605108COMMON STOCK756,931$14,230,303dollars as filed
IMMUNOCORE HLDGS PLC ADS45258D105ADR419,030$14,200,927dollars as filed
VERA THERAPEUTICS INC92337R101COMMON STOCK381,192$13,791,527dollars as filed
CRINETICS PHARMACEUTICALS INC COM22663K107Stock289,400$12,962,226dollars as filed
PROTHENA CORP PLC SHSG72800108Stock625,048$12,900,991dollars as filed
OLINK HLDG AB680710100ADR500,000$12,740,000dollars as filed
CHARLES RIV LABS INTL INC159864107COM60,250$12,446,445dollars as filed
BIOMARIN PHARMACEUTICAL INC09061G101COM151,000$12,431,830dollars as filed
AMICUS THERAPEUTICS INC03152W109COM1,218,580$12,088,314dollars as filed
NEVRO CORP64157F103COM1,381,500$11,632,230dollars as filed
CULLINAN THERAPEUTICS INC230031106COM658,338$11,481,415dollars as filed
ENLIVEN THERAPEUTICS INC COM29337E102Stock428,571$10,015,704dollars as filed
JASPER THERAPEUTICS INC471871202COM NEW404,335$9,178,405dollars as filed
NOVAVAX INC670002401COM NEW675,000$8,545,500dollars as filed
ACCOLADE INC00437E102COM2,290,000$8,198,200dollars as filed
EDAP TMS S A268311107SPONSORED ADR1,475,000$8,024,000dollars as filed
SPRINGWORKS THERAPEUTICS INC85205L107COM199,855$7,528,538dollars as filed
NEUMORA THERAPEUTICS INC.640979100COM760,007$7,470,869dollars as filed
Applied Therapeutics Inc03828A101Common Stock1,555,004$7,261,869dollars as filed
AURINIA PHARMACEUTICALS INC COM05156V102Stock1,179,740$6,736,315dollars as filed
BLUEPRINT MEDICINES CORP09627Y109COM57,000$6,143,460dollars as filedcall
Mersana Therapeutics Inc59045L106Common Stock3,046,782$6,124,032dollars as filed
BEAM THERAPEUTICS INC07373V105COM249,923$5,855,696dollars as filed
ACUMEN PHARMACEUTICALS INC00509G209CMN2,300,059$5,566,143dollars as filed
COMPASS THERAPEUTICS INC20454B104COM5,513,788$5,513,788dollars as filed
APELLIS PHARMACEUTICALS INC03753U106COM140,700$5,397,252dollars as filed
GOSSAMER BIO INC38341PAA0NOTE 5.000% 6/09,573,000$4,735,945dollars as filedprincipal
FULCRUM THERAPEUTICS INC359616109COMMON STOCK727,673$4,511,573dollars as filed
MACROGENICS INC556099109COM1,053,647$4,478,000dollars as filed
MINERALYS THERAPEUTICS INC603170101COM378,932$4,433,504dollars as filed
BIOHAVEN LTDG1110E107COM127,558$4,427,538dollars as filed
PLIANT THERAPEUTICS INC729139105COM384,996$4,138,707dollars as filed
PULMONX CORP745848101COM652,400$4,136,216dollars as filed
PERSPECTIVE THERAPEUTICS INC46489V302COMMON STOCK401,196$3,999,924dollars as filed
AUTOLUS THERAPEUTICS PLC SPON05280R100COM1,032,988$3,594,798dollars as filed
ESSA PHARMA INC29668H708COM NEW677,005$3,561,046dollars as filed
ACLARIS THERAPEUTICS INC COM00461U105Stock2,753,495$3,028,845dollars as filed
GOSSAMER BIO INC COM38341P102Stock3,266,960$2,943,204dollars as filed
TRAVERE THERAPEUTICS INC761299AB2NOTE 2.500% 9/13,250,000$2,887,651dollars as filedprincipal
Xilio Therapeutics Inc.98422T100COM3,003,259$2,845,588dollars as filed
SAGIMET BIOSCIENCES INC A786700104COMMON STOCK787,808$2,694,303dollars as filed
STRUCTURE THERAPEUTICS INC COMP86366E106EQUITY65,600$2,576,112dollars as filedcall
CYPHERPUNK TECHNOLOGIES INC52187K200COM NEW1,266,546$2,482,430dollars as filed
ADAPTIMMUNE THERAPEUTICS PLC00653A107SPONDS ADR2,425,468$2,364,589dollars as filed
VIGIL NEUROSCIENCE INC92673K108COM471,958$1,887,832dollars as filed
COMPUGEN LTDM25722105ORD989,990$1,663,183dollars as filed
SPRUCE BIOSCIENCES INC85209E109COM2,609,125$1,350,744dollars as filed
KYVERNA THERAPEUTICS INC501976104COMMON STOCK178,963$1,342,223dollars as filed
KORRO BIO INC500946108COMMON STOCK35,719$1,209,803dollars as filed
ALLAKOS INC01671P100COM1,200,409$1,200,409dollars as filed
BIOMEA FUSION INC09077A106CMN181,147$815,162dollars as filed
VINCERX PHARMA INC92731L106COM NEW891,719$722,292dollars as filed
NEVRO CORP64157FAC7NOTE 2.750% 4/0500,000$483,261dollars as filedprincipal
TALPHERA INC00444T209COM NEW316,460$281,649dollars as filed
NUVATION BIO INC67080N119WARR134,028$21,444dollars as filed

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001172661-24-003467this filing2024-08-14acceptance time not in the bulk data set