13F-HR filed by Rock Springs Capital Management LP
Rock Springs Capital Management LP filed this 13F-HR for the quarter ended 2021-03-31, filed 2021-05-17, with 151 holding rows worth $4,583,741,000.
- Accession
- 0001172661-21-001265
- Filer
- CIK 1595725
- Filed
- 2021-05-17
- Accepted by EDGAR
- acceptance time not in the bulk data set
- Ingested
- Source
- SEC quarterly data set
13F report for Q1 2021
A holdings report, 151 entries on the cover page, a total value of $4,583,741,000 stated on the cover page (in dollars after the unit check, H1), rows summing to $4,583,741,000 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 filed | CUSIP | Class | Amount | Value | Value read as | Type |
|---|---|---|---|---|---|---|
| AGIOS PHARMACEUTICALS INC | 00847X104 | COM | 2,543,600 | $131,352,000 | thousands by filing date | |
| HUMANA INC COM | 444859102 | Stock | 301,000 | $126,194,000 | thousands by filing date | |
| ZAI LAB LTD ADR | 98887Q104 | ADR | 933,500 | $124,557,000 | thousands by filing date | |
| ATEA PHARMACEUTICALS INC | 04683R106 | COMMON STOCK | 1,694,903 | $104,660,000 | thousands by filing date | |
| UnitedHealth Group Inc | 91324P102 | COM | 275,000 | $102,319,000 | thousands by filing date | |
| FIVE PRIME THERAPEUTICS INC. | 33830X104 | Common Stock | 2,660,822 | $100,233,000 | thousands by filing date | |
| NEUROCRINE BIOSCIENCES INC | 64125C109 | COM | 1,015,000 | $98,709,000 | thousands by filing date | |
| IMMUNOCORE HLDGS PLC ADS | 45258D105 | ADR | 2,292,285 | $97,583,000 | thousands by filing date | |
| INSULET CORP COM | 45784P101 | Stock | 371,000 | $96,801,000 | thousands by filing date | |
| ALIGN TECHNOLOGY INC COM | 016255101 | Stock | 177,500 | $96,122,000 | thousands by filing date | |
| ACLARIS THERAPEUTICS INC COM | 00461U105 | Stock | 3,569,192 | $89,944,000 | thousands by filing date | |
| Intuitive Surgical,Inc. | 46120E602 | COM | 120,000 | $88,673,000 | thousands by filing date | |
| IDEXX LABS INC COM | 45168D104 | Stock | 180,000 | $88,076,000 | thousands by filing date | |
| HCA Healthcare Inc | 40412C101 | COM | 450,000 | $84,753,000 | thousands by filing date | |
| INVITAE CORP | 46185L103 | COM | 2,213,977 | $84,596,000 | thousands by filing date | |
| NOVAVAX INC | 670002401 | COM NEW | 461,000 | $83,584,000 | thousands by filing date | |
| ARGENX SE SPONSORED ADR | 04016X101 | ADR | 300,000 | $82,617,000 | thousands by filing date | |
| FRESHPET INC COM | 358039105 | Stock | 506,500 | $80,437,000 | thousands by filing date | |
| EXACT SCIENCES CORP COM | 30063P105 | Stock | 570,000 | $75,115,000 | thousands by filing date | |
| BLUEPRINT MEDICINES CORP | 09627Y109 | COM | 746,732 | $72,605,000 | thousands by filing date | |
| PACIRA BIOSCIENCES INC COM | 695127100 | Stock | 1,025,000 | $71,842,000 | thousands by filing date | |
| BEONE MEDICINES LTD SPONSORED ADS | 07725L102 | ADR | 200,000 | $69,616,000 | thousands by filing date | |
| NEVRO CORP | 64157F103 | COM | 485,000 | $67,658,000 | thousands by filing date | |
| IRHYTHM HOLDINGS INC COM | 450056106 | Stock | 432,496 | $60,056,000 | thousands by filing date | |
| HORIZON THERAPEUTICS PLC | G46188101 | SHS | 625,000 | $57,525,000 | thousands by filing date | |
| MIRATI THERAPEUTICS INC | 60468T105 | COM | 323,647 | $55,441,000 | thousands by filing date | |
| TELEFLEX INCORPORATED | 879369106 | COM | 130,000 | $54,010,000 | thousands by filing date | |
| BOLT BIOTHERAPEUTICS INC | 097702104 | COM | 1,559,248 | $51,315,000 | thousands by filing date | |
| ULTRAGENYX PHARMACEUTICAL IN | 90400D108 | COM | 450,000 | $51,237,000 | thousands by filing date | |
| EDWARDS LIFESCIENCES CORP COM | 28176E108 | Stock | 582,000 | $48,678,000 | thousands by filing date | |
| Mersana Therapeutics Inc | 59045L106 | Common Stock | 2,775,127 | $44,902,000 | thousands by filing date | |
| CULLINAN THERAPEUTICS INC | 230031106 | COM | 1,075,912 | $44,833,000 | thousands by filing date | |
| KARUNA THERAPEUTICS INC | 48576A100 | COM | 368,764 | $44,336,000 | thousands by filing date | |
| PHREESIA INC | 71944F106 | COM | 850,000 | $44,285,000 | thousands by filing date | |
| EARGO INC | 270087109 | COM | 851,671 | $42,541,000 | thousands by filing date | |
| ALNYLAM PHARMACEUTICALS INC COM | 02043Q107 | Stock | 300,000 | $42,357,000 | thousands by filing date | |
| COVETRUS INC | 22304C100 | COM | 1,400,000 | $41,958,000 | thousands by filing date | |
| ARVINAS INC | 04335A105 | COM | 621,800 | $41,101,000 | thousands by filing date | |
| ENCOMPASS HEALTH CORP COM | 29261A100 | Stock | 500,000 | $40,950,000 | thousands by filing date | |
| ACADIA HEALTHCARE COMPANY INC COM | 00404A109 | Stock | 700,000 | $39,998,000 | thousands by filing date | |
| PENUMBRA INC COM | 70975L107 | Stock | 147,500 | $39,911,000 | thousands by filing date | |
| TRAVERE THERAPEUTICS INC | 89422G107 | COM | 1,475,564 | $36,845,000 | thousands by filing date | |
| HEALTH CATALYST INC | 42225T107 | COM | 785,000 | $36,714,000 | thousands by filing date | |
| ALLAKOS INC | 01671P100 | COM | 305,706 | $35,089,000 | thousands by filing date | |
| SEAGEN INC | 81181C104 | COM | 250,000 | $34,715,000 | thousands by filing date | |
| ARDELYX INC | 039697107 | COM | 5,176,561 | $34,269,000 | thousands by filing date | |
| ASTRAZENECA PLC SPONSORED ADR | 046353108 | ADR | 650,000 | $32,318,000 | thousands by filing date | |
| BIOGEN INC COM | 09062X103 | Stock | 113,500 | $31,752,000 | thousands by filing date | |
| Boston Scientific Corporation | 101137107 | COM | 800,000 | $30,920,000 | thousands by filing date | |
| GUARDANT HEALTH INC COM | 40131M109 | Stock | 200,000 | $30,530,000 | thousands by filing date | |
| MADRIGAL PHARMACEUTICALS INC COM | 558868105 | Stock | 258,500 | $30,237,000 | thousands by filing date | |
| ASCENDIS PHARMA A/S DKK 1.0 AD | 04351P101 | SPONSORED ADR | 233,500 | $30,093,000 | thousands by filing date | |
| MIRUM PHARMACEUTICALS INC | 604749101 | COM | 1,502,800 | $29,785,000 | thousands by filing date | |
| EVOLENT HEALTH INC CL A | 30050B101 | Stock | 1,445,000 | $29,189,000 | thousands by filing date | |
| PROTHENA CORP PLC SHS | G72800108 | Stock | 1,156,900 | $29,061,000 | thousands by filing date | |
| SHOCKWAVE MED INC | 82489T104 | COM | 220,000 | $28,657,000 | thousands by filing date | |
| ACCOLADE INC | 00437E102 | COM | 625,000 | $28,356,000 | thousands by filing date | |
| ACADIA PHARMACEUTICALS INC | 004225108 | COM | 1,076,200 | $27,766,000 | thousands by filing date | |
| PULMONX CORP | 745848101 | COM | 592,500 | $27,101,000 | thousands by filing date | |
| SPRUCE BIOSCIENCES INC | 85209E109 | COM | 1,579,301 | $26,216,000 | thousands by filing date | |
| ADAPTIVE BIOTECHNOLOGIES CORP COM | 00650F109 | Stock | 650,000 | $26,169,000 | thousands by filing date | |
| AMARIN CORP PLC | 023111206 | SPONS ADR NEW | 4,195,000 | $26,051,000 | thousands by filing date | |
| PPD INC | 69355F102 | COM | 675,000 | $25,542,000 | thousands by filing date | |
| SAREPTA THERAPEUTICS INC | 803607100 | COM | 328,750 | $24,502,000 | thousands by filing date | |
| EPIZYME INC | 29428V104 | COM | 2,802,954 | $24,414,000 | thousands by filing date | |
| KYMERA THERAPEUTICS INC | 501575104 | COM | 621,777 | $24,162,000 | thousands by filing date | |
| NOVOCURE LTD | G6674U108 | ORD SHS | 175,000 | $23,132,000 | thousands by filing date | |
| INTERSECT ENT INC | 46071F103 | COM | 1,080,200 | $22,555,000 | thousands by filing date | |
| COLLEGIUM PHARMACEUTICAL INC | 19459J104 | COM | 920,000 | $21,804,000 | thousands by filing date | |
| INSPIRE MED SYS INC COM | 457730109 | Stock | 100,000 | $20,699,000 | thousands by filing date | |
| ABCAM PLC | 000380204 | ADR USD | 1,069,236 | $20,551,000 | thousands by filing date | |
| OAK STR HEALTH INC | 67181A107 | COM | 375,000 | $20,351,000 | thousands by filing date | |
| KURA ONCOLOGY INC COM | 50127T109 | Stock | 710,035 | $20,073,000 | thousands by filing date | |
| BIOMARIN PHARMACEUTICAL INC | 09061G101 | COM | 253,500 | $19,142,000 | thousands by filing date | |
| CYTOKINETICS INC | 23282WAA8 | NOTE 4.000%11/1 | 8,000,000 | $19,094,000 | thousands by filing date | principal |
| ROCKET PHARMACEUTICALS INC | 77313F106 | COM | 403,070 | $17,884,000 | thousands by filing date | |
| SIERRA ONCOLOGY INC | 82640U404 | CMN | 1,017,358 | $17,529,000 | thousands by filing date | |
| GAMIDA CELL LTD | M47364100 | SHS | 2,100,300 | $16,991,000 | thousands by filing date | |
| INOZYME PHARMA INC | 45790W108 | COM | 827,900 | $16,392,000 | thousands by filing date | |
| PRELUDE THERAPEUTICS INC | 74065P101 | CMN | 378,195 | $16,387,000 | thousands by filing date | |
| DYNAVAX TECHNOLOGIES CORP | 268158201 | COM NEW | 1,658,520 | $16,303,000 | thousands by filing date | |
| RIGEL PHARMACEUTICALS INC | 766559603 | COMMON STOCK | 4,742,000 | $16,218,000 | thousands by filing date | |
| NKARTA INC | 65487U108 | COMMON STOCK | 491,848 | $16,182,000 | thousands by filing date | |
| MEREO BIOPHARMA GROUP PLC | 589492107 | CMN | 4,494,869 | $15,148,000 | thousands by filing date | |
| AKERO THERAPEUTICS INC | 00973Y108 | COM | 521,171 | $15,119,000 | thousands by filing date | |
| ESSA PHARMA INC | 29668H708 | COM NEW | 503,035 | $14,613,000 | thousands by filing date | |
| ATHIRA PHARMA INC | 04746L104 | COM | 788,202 | $14,503,000 | thousands by filing date | |
| OLINK HLDG AB | 680710100 | ADR | 400,000 | $14,400,000 | thousands by filing date | |
| SPERO THERAPEUTICS INC | 84833T103 | COM | 965,928 | $14,218,000 | thousands by filing date | |
| GOSSAMER BIO INC | 38341PAA0 | NOTE 5.000% 6/0 | 15,573,000 | $13,977,000 | thousands by filing date | principal |
| THERAVANCE BIOPHARMA INC | G8807B106 | COM | 682,600 | $13,932,000 | thousands by filing date | |
| CEREVEL THERAPEUTICS HLDNG I | 15678U128 | COM | 1,005,100 | $13,800,000 | thousands by filing date | |
| Applied Therapeutics Inc | 03828A101 | Common Stock | 701,680 | $13,160,000 | thousands by filing date | |
| TG THERAPEUTICS INC COM | 88322Q108 | Stock | 266,520 | $12,846,000 | thousands by filing date | |
| RHYTHM PHARMACEUTICALS INC | 76243J105 | COM | 599,280 | $12,747,000 | thousands by filing date | |
| LAKEFRONT BIOTHERAPEUTICS NV | 36315X101 | SPON ADR | 165,000 | $12,720,000 | thousands by filing date | |
| MACROGENICS INC | 556099109 | COM | 393,479 | $12,532,000 | thousands by filing date | |
| AEGLEA BIOTHERAPEUTICS INC | 00773J103 | COM | 1,577,296 | $12,492,000 | thousands by filing date | |
| INNOVAGE HLDG CORP | 45784A104 | COM | 475,000 | $12,250,000 | thousands by filing date | |
| PARATEK PHARMACEUTICALS INC | 699374302 | Equity | 1,684,714 | $11,894,000 | thousands by filing date | |
| BAXTER INTL INC | 071813109 | COM | 140,000 | $11,808,000 | thousands by filing date | |
| ANAPTYSBIO INC | 032724106 | COM | 535,232 | $11,534,000 | thousands by filing date | |
| SHATTUCK LABS INC | 82024L103 | COMMON STOCK | 388,499 | $11,360,000 | thousands by filing date | |
| CONMED CORP COM | 207410101 | Stock | 85,085 | $11,111,000 | thousands by filing date | |
| PROTARA THERAPEUTICS INC | 74365U107 | COM STK | 689,942 | $10,860,000 | thousands by filing date | |
| FIBROGEN INC | 31572Q808 | COM | 312,687 | $10,853,000 | thousands by filing date | |
| TRANSLATE BIO INC. | 89374L104 | Common Stock | 649,900 | $10,717,000 | thousands by filing date | |
| NGM BIOPHARMACEUTICALS INC | 62921N105 | COM | 364,800 | $10,605,000 | thousands by filing date | |
| PROMETHEUS BIOSCIENCES INC | 74349U108 | COM | 574,858 | $10,497,000 | thousands by filing date | |
| COMPUGEN LTD | M25722105 | ORD | 1,219,488 | $10,475,000 | thousands by filing date | |
| CHINOOK THERAPEUTICS INC | 16961L106 | COM | 673,049 | $10,459,000 | thousands by filing date | |
| XENON PHARMACEUTICALS INC COM | 98420N105 | Stock | 572,500 | $10,248,000 | thousands by filing date | |
| KINNATE BIOPHARMA INC | 49705R105 | COM | 326,386 | $10,170,000 | thousands by filing date | |
| FUSION PHARMACEUTICALS INC | 36118A100 | COM | 948,327 | $10,166,000 | thousands by filing date | |
| AURINIA PHARMACEUTICALS INC COM | 05156V102 | Stock | 781,569 | $10,149,000 | thousands by filing date | |
| AMICUS THERAPEUTICS INC | 03152W109 | COM | 1,012,506 | $10,004,000 | thousands by filing date | |
| ORION ACQUISITION CORP | 68626A207 | UNIT 02/19/2026 | 1,000,000 | $10,000,000 | thousands by filing date | |
| DESIGN THERAPEUTICS INC | 25056L103 | COM | 327,250 | $9,785,000 | thousands by filing date | |
| NURIX THERAPEUTICS INC | 67080M103 | COMMON STOCK | 310,950 | $9,667,000 | thousands by filing date | |
| LEGEND BIOTECH CORP | 52490G102 | SPONSORED ADS | 312,618 | $9,072,000 | thousands by filing date | |
| RELAY THERAPEUTICS INC COM | 75943R102 | Stock | 252,127 | $8,716,000 | thousands by filing date | |
| ADAPTIMMUNE THERAPEUTICS PLC | 00653A107 | SPONDS ADR | 1,545,000 | $8,204,000 | thousands by filing date | |
| WEST PHARMACEUTICAL SVSC INC COM | 955306105 | Stock | 28,500 | $8,031,000 | thousands by filing date | |
| ATRECA INC | 04965G109 | COM | 453,930 | $6,959,000 | thousands by filing date | |
| CHIASMA INC | 16706W102 | COM | 2,174,583 | $6,806,000 | thousands by filing date | |
| TRILLIUM THERAPEUTICS INC COM NEW | 89620X506 | Stock | 620,800 | $6,667,000 | thousands by filing date | |
| ACELRX PHARMACEUTICALS INC | 00444T100 | COM | 3,785,457 | $6,435,000 | thousands by filing date | |
| FATE THERAPEUTICS INC | 31189P102 | COM | 70,000 | $5,772,000 | thousands by filing date | |
| CONSTELLATION PHARMACEUTICALS INC. | 210373106 | Common Stock | 232,000 | $5,426,000 | thousands by filing date | |
| DEXCOM INC COM | 252131107 | Stock | 15,000 | $5,391,000 | thousands by filing date | |
| PHASEBIO PHARMACEUTICALS INC | 717224109 | COM | 1,553,974 | $5,377,000 | thousands by filing date | |
| GALERA THERAPEUTICS EQUICLASS EQUITY | 36338D108 | COMMON STOCK | 568,252 | $5,012,000 | thousands by filing date | |
| NUVATION BIO INC COM CL A | 67080N101 | Stock | 402,088 | $4,202,000 | thousands by filing date | |
| ROYALTY PHARMA PLC | G7709Q104 | SHS CLASS A | 80,000 | $3,490,000 | thousands by filing date | |
| TRAVERE THERAPEUTICS INC | 761299AB2 | NOTE 2.500% 9/1 | 3,250,000 | $3,360,000 | thousands by filing date | principal |
| BCLS ACQUISITION CORP | G0904B105 | CMN | 309,000 | $3,266,000 | thousands by filing date | |
| POSEIDA THERAPEUTICS INC | 73730P108 | COM | 289,754 | $2,767,000 | thousands by filing date | |
| CONNECT BIOPHARMA HLDGS LTD | 207523101 | SHS | 119,114 | $2,204,000 | thousands by filing date | |
| LIFESCI ACQUISITION II CORP | 53229E103 | COM | 206,200 | $2,091,000 | thousands by filing date | |
| PARDES BIOSCIENCES INC COM | 30318F100 | Stock | 209,332 | $2,085,000 | thousands by filing date | |
| EUCRATES BIOMEDICAL ACQU COR | G3141W114 | UNIT 10/23/2027 | 206,000 | $2,063,000 | thousands by filing date | |
| TURMERIC ACQUISITION CORP | G9127T116 | UNT | 206,000 | $2,060,000 | thousands by filing date | |
| JIYA ACQUISITION CORP | 47760M102 | CMN | 206,200 | $2,029,000 | thousands by filing date | |
| POPULATION HEALTH INVS CO IN | G71716123 | UNIT 99/99/9999 | 201,044 | $2,020,000 | thousands by filing date | |
| MOONLAKE IMMUNOTHERAPEUTICS | G4444C102 | COM | 154,500 | $1,576,000 | thousands by filing date | |
| THERAVANCE BIOPHARMA | 88339KAA0 | NOTE 3.250%11/0 | 1,500,000 | $1,526,000 | thousands by filing date | principal |
| RADIUS HEALTH INC | 750469AA6 | NOTE | 1,500,000 | $1,401,000 | thousands by filing date | principal |
| NEUROCRINE BIOSCIENCES INC | 64125CAD1 | NOTE 2.250% 5/1 | 1,000,000 | $1,354,000 | thousands by filing date | principal |
| PACIRA BIOSCIENCES | 695127AD2 | NOTE 2.375% 4/0 | 1,000,000 | $1,211,000 | thousands by filing date | principal |
| NEVRO CORP | 64157FAC7 | NOTE 2.750% 4/0 | 500,000 | $771,000 | thousands by filing date | principal |
| NUVATION BIO INC | 67080N119 | WARR | 134,028 | $358,000 | thousands by filing date |
Amendment chain
| Filing | Role | Filed | Accepted | Ingested |
|---|---|---|---|---|
| 13F-HR 0001172661-21-001265 | this filing | 2021-05-17 | acceptance time not in the bulk data set |