13F-HR filed by Rock Springs Capital Management LP
Rock Springs Capital Management LP filed this 13F-HR for the quarter ended 2023-12-31, filed 2024-02-14, with 104 holding rows worth $4,062,169,985.
- Accession
- 0001172661-24-001078
- Filer
- CIK 1595725
- Filed
- 2024-02-14
- Accepted by EDGAR
- acceptance time not in the bulk data set
- Ingested
- Source
- SEC quarterly data set
13F report for Q4 2023
A holdings report, 104 entries on the cover page, a total value of $4,062,169,985 stated on the cover page (in dollars after the unit check, H1), rows summing to $4,062,169,985 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 filed | CUSIP | Class | Amount | Value | Value read as | Type |
|---|---|---|---|---|---|---|
| BLUEPRINT MEDICINES CORP | 09627Y109 | COM | 2,881,567 | $265,795,740 | dollars as filed | |
| IMMUNOCORE HLDGS PLC ADS | 45258D105 | ADR | 2,661,507 | $181,834,158 | dollars as filed | |
| KARUNA THERAPEUTICS INC | 48576A100 | COM | 515,024 | $163,010,246 | dollars as filed | |
| NEUROCRINE BIOSCIENCES INC | 64125C109 | COM | 1,196,000 | $157,584,960 | dollars as filed | |
| HUMANA INC COM | 444859102 | Stock | 310,000 | $141,921,100 | dollars as filed | |
| PENUMBRA INC COM | 70975L107 | Stock | 537,500 | $135,202,750 | dollars as filed | |
| EVOLENT HEALTH INC CL A | 30050B101 | Stock | 3,960,000 | $130,798,800 | dollars as filed | |
| UnitedHealth Group Inc | 91324P102 | COM | 230,000 | $121,088,100 | dollars as filed | |
| CEREVEL THERAPEUTICS HLDNG I | 15678U128 | COM | 2,674,245 | $113,387,988 | dollars as filed | |
| AGILON HEALTH INC | 00857U107 | COM | 8,630,000 | $108,306,500 | dollars as filed | |
| Intuitive Surgical,Inc. | 46120E602 | COM | 298,500 | $100,701,960 | dollars as filed | |
| IDEXX LABS INC COM | 45168D104 | Stock | 179,250 | $99,492,713 | dollars as filed | |
| INSULET CORP COM | 45784P101 | Stock | 431,750 | $93,681,115 | dollars as filed | |
| ARGENX SE SPONSORED ADR | 04016X101 | ADR | 229,250 | $87,213,578 | dollars as filed | |
| ULTRAGENYX PHARMACEUTICAL IN | 90400D108 | COM | 1,754,038 | $83,878,097 | dollars as filed | |
| ACADIA HEALTHCARE COMPANY INC COM | 00404A109 | Stock | 1,073,500 | $83,475,360 | dollars as filed | |
| EXACT SCIENCES CORP COM | 30063P105 | Stock | 1,019,500 | $75,422,610 | dollars as filed | |
| DEXCOM INC COM | 252131107 | Stock | 596,000 | $73,957,640 | dollars as filed | |
| Boston Scientific Corporation | 101137107 | COM | 1,232,500 | $71,250,825 | dollars as filed | |
| RHYTHM PHARMACEUTICALS INC | 76243J105 | COM | 1,522,893 | $70,007,391 | dollars as filed | |
| ALIGN TECHNOLOGY INC COM | 016255101 | Stock | 220,000 | $60,280,000 | dollars as filed | |
| XENON PHARMACEUTICALS INC COM | 98420N105 | Stock | 1,255,577 | $57,831,877 | dollars as filed | |
| FRESHPET INC COM | 358039105 | Stock | 662,500 | $57,478,500 | dollars as filed | |
| MIRUM PHARMACEUTICALS INC | 604749101 | COM | 1,851,464 | $54,655,217 | dollars as filed | |
| PHREESIA INC | 71944F106 | COM | 2,206,700 | $51,085,105 | dollars as filed | |
| EDWARDS LIFESCIENCES CORP COM | 28176E108 | Stock | 647,300 | $49,356,625 | dollars as filed | |
| MIRATI THERAPEUTICS INC | 60468T105 | COM | 835,776 | $49,101,840 | dollars as filed | |
| WEST PHARMACEUTICAL SVSC INC COM | 955306105 | Stock | 137,250 | $48,328,470 | dollars as filed | |
| AGIOS PHARMACEUTICALS INC | 00847X104 | COM | 2,152,173 | $47,928,893 | dollars as filed | |
| MADRIGAL PHARMACEUTICALS INC COM | 558868105 | Stock | 198,169 | $45,852,343 | dollars as filed | |
| ALNYLAM PHARMACEUTICALS INC COM | 02043Q107 | Stock | 235,000 | $44,981,350 | dollars as filed | |
| OLINK HLDG AB | 680710100 | ADR | 1,676,500 | $42,163,975 | dollars as filed | |
| ACCOLADE INC | 00437E102 | COM | 3,485,000 | $41,854,850 | dollars as filed | |
| IMMUNOVANT INC | 45258J102 | COM | 983,301 | $41,426,471 | dollars as filed | |
| Eli Lilly and Company | 532457108 | COM | 69,500 | $40,512,940 | dollars as filed | |
| KYMERA THERAPEUTICS INC | 501575104 | COM | 1,522,238 | $38,756,179 | dollars as filed | |
| CELLDEX THERAPEUTICS INC NEW | 15117B202 | COM NEW | 969,646 | $38,456,160 | dollars as filed | |
| IRHYTHM HOLDINGS INC COM | 450056106 | Stock | 350,750 | $37,544,280 | dollars as filed | |
| ASCENDIS PHARMA A/S DKK 1.0 AD | 04351P101 | SPONSORED ADR | 290,000 | $36,525,500 | dollars as filed | |
| PACIRA BIOSCIENCES INC COM | 695127100 | Stock | 1,055,500 | $35,612,570 | dollars as filed | |
| LIFESTANCE HEALTH GROUP INC | 53228F101 | COM | 4,535,000 | $35,509,050 | dollars as filed | |
| AZENTA INC | 114340102 | COM | 507,500 | $33,058,550 | dollars as filed | |
| SAREPTA THERAPEUTICS INC | 803607100 | COM | 327,600 | $31,590,468 | dollars as filed | |
| ZAI LAB LTD ADR | 98887Q104 | ADR | 1,137,023 | $31,074,839 | dollars as filed | |
| LEGEND BIOTECH CORP | 52490G102 | SPONSORED ADS | 492,444 | $29,630,355 | dollars as filed | |
| WARBY PARKER INC | 93403J106 | CL A COM | 2,028,300 | $28,599,030 | dollars as filed | |
| AKERO THERAPEUTICS INC | 00973Y108 | COM | 1,081,064 | $25,242,844 | dollars as filed | |
| TRAVERE THERAPEUTICS INC | 89422G107 | COM | 2,771,446 | $24,915,300 | dollars as filed | |
| MERUS N V | N5749R100 | COM | 872,069 | $23,981,898 | dollars as filed | |
| DYNAVAX TECHNOLOGIES CORP | 268158201 | COM NEW | 1,675,474 | $23,423,127 | dollars as filed | |
| SHOCKWAVE MED INC | 82489T104 | COM | 120,000 | $22,867,200 | dollars as filed | |
| PROTHENA CORP PLC SHS | G72800108 | Stock | 625,048 | $22,714,244 | dollars as filed | |
| IMMUNOGEN INC | 45253H101 | COMMON STOCK | 759,365 | $22,515,172 | dollars as filed | |
| NEVRO CORP | 64157F103 | COM | 1,025,000 | $22,058,000 | dollars as filed | |
| Amgen Inc. | 031162100 | COM | 74,500 | $21,457,490 | dollars as filed | |
| DISC MEDICINE INC COM | 254604101 | Stock | 363,468 | $20,993,912 | dollars as filed | |
| REVOLUTION MEDICINES INC COM | 76155X100 | Stock | 725,152 | $20,797,359 | dollars as filed | |
| INSPIRE MED SYS INC COM | 457730109 | Stock | 99,000 | $20,139,570 | dollars as filed | |
| IMMATICS N.V | N44445109 | SHS | 1,875,466 | $19,748,657 | dollars as filed | |
| BIOCRYST PHARMACEUTICALS INC COM | 09058V103 | Stock | 3,270,381 | $19,589,582 | dollars as filed | |
| MEREO BIOPHARMA GROUP PLC | 589492107 | CMN | 7,983,851 | $18,442,696 | dollars as filed | |
| COLLEGIUM PHARMACEUTICAL INC | 19459J104 | COM | 562,000 | $17,298,360 | dollars as filed | |
| INOZYME PHARMA INC | 45790W108 | COM | 3,681,174 | $15,681,801 | dollars as filed | |
| AMICUS THERAPEUTICS INC | 03152W109 | COM | 1,063,806 | $15,095,407 | dollars as filed | |
| BIOMARIN PHARMACEUTICAL INC | 09061G101 | COM | 148,832 | $14,350,381 | dollars as filed | |
| ICOSAVAX INC | 45114M109 | COM | 868,409 | $13,686,126 | dollars as filed | |
| KRYSTAL BIOTECH INC COM | 501147102 | Stock | 103,969 | $12,898,394 | dollars as filed | |
| STRUCTURE THERAPEUTICS INC COMP | 86366E106 | EQUITY | 286,676 | $11,684,914 | dollars as filed | |
| INHIBRX INC | 45720L107 | COM | 301,400 | $11,453,200 | dollars as filed | call |
| MACROGENICS INC | 556099109 | COM | 1,178,796 | $11,340,018 | dollars as filed | |
| MINERALYS THERAPEUTICS INC | 603170101 | COM | 1,167,492 | $10,040,431 | dollars as filed | |
| ACUMEN PHARMACEUTICALS INC | 00509G209 | CMN | 2,300,059 | $8,832,227 | dollars as filed | |
| COMPASS THERAPEUTICS INC | 20454B104 | COM | 5,513,788 | $8,601,509 | dollars as filed | |
| PULMONX CORP | 745848101 | COM | 652,400 | $8,318,100 | dollars as filed | |
| AMYLYX PHARMACEUTICALS INC | 03237H101 | COM | 535,012 | $7,875,377 | dollars as filed | |
| SPRUCE BIOSCIENCES INC | 85209E109 | COM | 2,609,125 | $7,644,736 | dollars as filed | |
| RELAY THERAPEUTICS INC COM | 75943R102 | Stock | 673,966 | $7,420,366 | dollars as filed | |
| EDAP TMS S A | 268311107 | SPONSORED ADR | 1,386,425 | $7,320,324 | dollars as filed | |
| Mersana Therapeutics Inc | 59045L106 | Common Stock | 3,046,782 | $7,068,534 | dollars as filed | |
| PLIANT THERAPEUTICS INC | 729139105 | COM | 384,996 | $6,972,278 | dollars as filed | |
| OSCAR HEALTH INC | 687793109 | CL A | 735,000 | $6,725,250 | dollars as filed | |
| FULCRUM THERAPEUTICS INC | 359616109 | COMMON STOCK | 727,673 | $4,911,793 | dollars as filed | |
| ESSA PHARMA INC | 29668H708 | COM NEW | 677,005 | $4,468,233 | dollars as filed | |
| SAGIMET BIOSCIENCES INC A | 786700104 | COMMON STOCK | 738,355 | $4,001,884 | dollars as filed | |
| AURINIA PHARMACEUTICALS INC COM | 05156V102 | Stock | 412,570 | $3,709,004 | dollars as filed | |
| GOSSAMER BIO INC | 38341PAA0 | NOTE 5.000% 6/0 | 9,573,000 | $3,488,296 | dollars as filed | principal |
| CYPHERPUNK TECHNOLOGIES INC | 52187K200 | COM NEW | 832,937 | $3,452,524 | dollars as filed | |
| ACLARIS THERAPEUTICS INC COM | 00461U105 | Stock | 2,998,495 | $3,148,420 | dollars as filed | |
| BEAM THERAPEUTICS INC | 07373V105 | COM | 111,430 | $3,033,125 | dollars as filed | |
| Applied Therapeutics Inc | 03828A101 | Common Stock | 895,195 | $2,998,903 | dollars as filed | |
| GOSSAMER BIO INC COM | 38341P102 | Stock | 3,266,960 | $2,981,101 | dollars as filed | |
| TRAVERE THERAPEUTICS INC | 761299AB2 | NOTE 2.500% 9/1 | 3,250,000 | $2,767,863 | dollars as filed | principal |
| BIOMEA FUSION INC | 09077A106 | CMN | 181,147 | $2,630,254 | dollars as filed | |
| NOVAVAX INC | 670002401 | COM NEW | 537,625 | $2,580,600 | dollars as filed | |
| COMPUGEN LTD | M25722105 | ORD | 1,289,990 | $2,554,180 | dollars as filed | |
| ADAPTIMMUNE THERAPEUTICS PLC | 00653A107 | SPONDS ADR | 2,425,468 | $1,923,396 | dollars as filed | |
| NEUROCRINE BIOSCIENCES INC | 64125CAD1 | NOTE 2.250% 5/1 | 1,000,000 | $1,753,490 | dollars as filed | principal |
| VIGIL NEUROSCIENCE INC | 92673K108 | COM | 471,958 | $1,595,218 | dollars as filed | |
| RENEO PHARMACEUTICALS INC | 75974E103 | COM | 751,730 | $1,202,768 | dollars as filed | |
| VINCERX PHARMA INC | 92731L106 | COM NEW | 891,719 | $1,052,228 | dollars as filed | |
| Xilio Therapeutics Inc. | 98422T100 | COM | 1,440,759 | $792,417 | dollars as filed | |
| NEVRO CORP | 64157FAC7 | NOTE 2.750% 4/0 | 500,000 | $481,796 | dollars as filed | principal |
| TALPHERA INC | 00444T209 | COM NEW | 316,460 | $232,598 | dollars as filed | |
| NUVATION BIO INC | 67080N119 | WARR | 134,028 | $8,042 | dollars as filed |
Amendment chain
| Filing | Role | Filed | Accepted | Ingested |
|---|---|---|---|---|
| 13F-HR 0001172661-24-001078 | this filing | 2024-02-14 | acceptance time not in the bulk data set |