13F-HR filed by DEERFIELD MANAGEMENT COMPANY, L.P.
DEERFIELD MANAGEMENT COMPANY, L.P. filed this 13F-HR for the quarter ended 2026-03-31, filed 2026-05-15, with 82 holding rows worth $8,476,379,716.
- Accession
- 0001213900-26-057678
- Filer
- CIK 1009258
- Filed
- 2026-05-15
- Accepted by EDGAR
- acceptance time not in the bulk data set
- Ingested
- Source
- SEC quarterly data set
13F report for Q1 2026
A holdings report, 82 entries on the cover page, a total value of $8,476,379,716 stated on the cover page (in dollars after the unit check, H1), rows summing to $8,476,379,716 with VALUE read as dollars as filed, 13F file number 028-05366. The quarter's positions are built on this report. The resolved quarter.
Other managers
- included managerDeerfield UGP, LLC 028-25875
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 |
|---|---|---|---|---|---|---|
| NUVALENT INC COM | 670703107 | Stock | 17,248,450 | $1,767,103,703 | dollars as filed | |
| BROOKDALE SR LIVING INC | 112463AF1 | NOTE 3.500%10/1 | 306,885,000 | $505,441,129 | dollars as filed | principal |
| COGENT BIOSCIENCES INC | 19240Q201 | COM | 9,043,903 | $348,099,826 | dollars as filed | |
| PRAXIS PRECISION MEDICINES I | 74006W207 | COM NEW | 963,351 | $310,382,059 | dollars as filed | |
| VIATRIS INC COM | 92556V106 | Stock | 20,206,170 | $272,985,357 | dollars as filed | |
| UNITED THERAPEUTICS CORP DEL COM | 91307C102 | Stock | 457,000 | $270,991,860 | dollars as filed | |
| REVOLUTION MEDICINES INC COM | 76155X100 | Stock | 2,297,000 | $223,383,250 | dollars as filed | |
| MIRUM PHARMACEUTICALS INC | 604749AB7 | NOTE 4.000% 5/0 | 70,000,000 | $209,440,280 | dollars as filed | principal |
| Arrowhead Pharmaceuticals In Note 1/1 | 04280AAC4 | Convertible | 200,000,000 | $207,181,800 | dollars as filed | principal |
| CELCUITY INC | 15102K100 | COM | 1,714,000 | $195,635,960 | dollars as filed | |
| CENTENE CORP DEL COM | 15135B101 | Stock | 5,917,091 | $193,725,559 | dollars as filed | |
| LARIMAR THERAPEUTICS INC | 517125100 | COM | 35,606,974 | $160,231,383 | dollars as filed | |
| BROOKDALE SR LIVING INC | 112463104 | COM | 11,637,032 | $159,194,598 | dollars as filed | |
| VERA THERAPEUTICS INC | 92337R101 | COMMON STOCK | 3,722,100 | $149,740,083 | dollars as filed | |
| IONIS PHARMACEUTICALS INC COM | 462222100 | Stock | 1,979,669 | $148,653,345 | dollars as filed | |
| BIOCRYST PHARMACEUTICALS INC COM | 09058V103 | Stock | 15,038,000 | $143,161,760 | dollars as filed | |
| INSPIRE MED SYS INC COM | 457730109 | Stock | 2,703,238 | $139,433,016 | dollars as filed | |
| LEGEND BIOTECH CORP | 52490G102 | SPONSORED ADS | 7,687,638 | $139,069,371 | dollars as filed | |
| ADAPTHEALTH CORP | 00653Q102 | COMMON STOCK | 11,477,730 | $136,584,987 | dollars as filed | |
| NEWAMSTERDAM PHARMA CO NV | N62509109 | COMMON STOCK | 4,264,789 | $136,515,896 | dollars as filed | |
| ACADIA HEALTHCARE COMPANY INC COM | 00404A109 | Stock | 4,520,000 | $105,722,800 | dollars as filed | |
| ARROWHEAD PHARMACEUTICALS IN | 04280A100 | COM | 1,573,297 | $98,645,722 | dollars as filed | |
| CATALYST PHARMACEUTICALS INC | 14888U101 | COM | 3,943,600 | $97,643,536 | dollars as filed | |
| INDIVIOR PHARMACEUTICALS INC | 45579U109 | COM | 3,097,790 | $94,420,639 | dollars as filed | |
| XENON PHARMACEUTICALS INC COM | 98420N105 | Stock | 1,615,696 | $93,952,722 | dollars as filed | |
| IONIS PHARMACEUTICALS INC | 462222AF7 | NOTE 1.750% 6/1 | 60,000,000 | $90,613,860 | dollars as filed | principal |
| PHARVARIS NV | N69605108 | COMMON STOCK | 3,126,042 | $88,310,687 | dollars as filed | |
| SYNDAX PHARMACEUTICALS INC | 87164F105 | COM | 3,779,900 | $88,298,464 | dollars as filed | |
| TANGO THERAPEUTICS INC | 87583X109 | COM | 4,146,813 | $86,751,328 | dollars as filed | |
| ALIGNMENT HEALTHCARE INC | 01625VAB0 | NOTE 4.250%11/1 | 61,000,000 | $85,858,720 | dollars as filed | principal |
| DIANTHUS THERAPEUTICS INC | 252828108 | COM | 1,019,813 | $85,582,707 | dollars as filed | |
| Pfizer Inc. | 717081103 | COM | 3,040,000 | $85,363,200 | dollars as filed | |
| NEUROCRINE BIOSCIENCES INC | 64125C109 | COM | 610,000 | $80,361,400 | dollars as filed | |
| Day One Biopharmaceuticals Inc | 23954D109 | Common Stock | 3,723,131 | $79,823,929 | dollars as filed | |
| SAVARA INC | 805111101 | COM | 13,569,000 | $74,086,740 | dollars as filed | |
| ZENAS BIOPHARMA INC | 98937LAA3 | NOTE 2.500% 4/0 | 65,000,000 | $67,252,900 | dollars as filed | principal |
| ENHABIT INC | 29332G102 | COM | 4,747,746 | $66,895,741 | dollars as filed | |
| NEOGENOMICS INC | 64049MAB6 | NOTE 0.250% 1/1 | 72,689,000 | $66,653,778 | dollars as filed | principal |
| GENMAB A/S | 372303206 | Ordinary Shares, nominal value DKK 1 per share | 2,462,000 | $66,055,460 | dollars as filed | |
| BIO RAD LABS INC | 090572207 | CL A | 226,070 | $63,017,013 | dollars as filed | |
| LANTHEUS HLDGS INC | 516544103 | COM | 827,999 | $62,803,724 | dollars as filed | |
| ARS PHARMACEUTICALS INC | 82835W108 | COM | 7,503,812 | $60,255,610 | dollars as filed | |
| STOKE THERAPEUTICS INC | 86150R107 | COM | 1,823,500 | $59,373,160 | dollars as filed | |
| ENVISTA HOLDINGS CORPORATION | 29415F104 | COM | 2,210,100 | $56,070,237 | dollars as filed | |
| IDEAYA BIOSCIENCES INC COM | 45166A102 | Stock | 1,530,008 | $50,979,867 | dollars as filed | |
| BELITE BIO INC | 07782B104 | CMN | 304,013 | $48,471,833 | dollars as filed | |
| BIOMARIN PHARMACEUTICAL INC | 09061G101 | COM | 851,556 | $48,104,398 | dollars as filed | |
| KYMERA THERAPEUTICS INC | 501575104 | COM | 561,170 | $46,739,849 | dollars as filed | |
| CERTARA INC COM | 15687V109 | Stock | 7,808,605 | $44,509,049 | dollars as filed | |
| BRIDGEBIO ONCOLOGY THERAPEUT | 107924102 | COM NEW | 4,885,446 | $43,724,742 | dollars as filed | |
| DISC MEDICINE INC COM | 254604101 | Stock | 657,000 | $42,008,580 | dollars as filed | |
| LIVANOVA PLC | 53802LAB8 | NOTE 2.500% 3/1 | 34,280,000 | $40,033,281 | dollars as filed | principal |
| SIONNA THERAPEUTICS INC | 829401108 | COMMON STOCK | 970,590 | $38,910,953 | dollars as filed | |
| CAREDX INC | 14167L103 | COM | 2,191,000 | $38,035,760 | dollars as filed | |
| STRUCTURE THERAPEUTICS INC COMP | 86366E106 | EQUITY | 767,993 | $37,017,263 | dollars as filed | |
| IMMUNOCORE HLDGS PLC | 45258DAB1 | NOTE 2.500% 2/0 | 30,000,000 | $27,025,200 | dollars as filed | principal |
| VERACYTE INC COM | 92337F107 | Stock | 726,000 | $23,384,460 | dollars as filed | |
| ALNYLAM PHARMACEUTICALS INC COM | 02043Q107 | Stock | 67,935 | $22,477,653 | dollars as filed | |
| EMBECTA CORP | 29082K105 | COMMON STOCK | 2,534,961 | $22,409,055 | dollars as filed | |
| TYRA BIOSCIENCES INC | 90240B106 | COMMON STOCK | 549,000 | $21,026,700 | dollars as filed | |
| FOGHORN THERAPEUTICS INC | 344174107 | COMMON STOCK | 4,394,367 | $21,005,074 | dollars as filed | |
| BRIGHT MINDS BIOSCIENCES INC | 10919W405 | COMMON STOCK | 283,000 | $20,650,510 | dollars as filed | |
| COMPASS THERAPEUTICS INC | 20454B104 | COM | 3,606,000 | $19,075,740 | dollars as filed | |
| MONOPAR THERAPEUTICS INC | 61023L207 | COMMON STOCK | 323,745 | $17,737,989 | dollars as filed | |
| KYVERNA THERAPEUTICS INC | 501976104 | COMMON STOCK | 2,000,000 | $17,260,000 | dollars as filed | |
| SPYGLASS PHARMA INC | 85220G109 | COMMON STOCK | 550,000 | $14,250,500 | dollars as filed | |
| BETA BIONICS INC | 08659B102 | COMMON STOCK | 1,324,000 | $13,266,480 | dollars as filed | |
| TAYSHA GENE THERAPIES INC | 877619106 | COMMON STOCK | 2,722,165 | $12,168,078 | dollars as filed | |
| STARLING ONCOLOGY INC | 68236X100 | COMMON STOCK | 3,360,052 | $10,315,360 | dollars as filed | |
| CULLINAN THERAPEUTICS INC | 230031106 | COM | 386,169 | $5,487,461 | dollars as filed | |
| ANNEXON INC | 03589W102 | COM | 583,913 | $3,234,878 | dollars as filed | |
| ALECTOR INC | 014442107 | COMMON STOCK | 1,055,192 | $2,268,663 | dollars as filed | |
| NEWAMSTERDAM PHARMA CO NV-27 | N62509117 | WTS | 92,787 | $1,859,451 | dollars as filed | |
| EDWARDS LIFESCIENCES CORP COM | 28176E108 | Stock | 13,702 | $1,097,256 | dollars as filed | |
| BIOMX INC | 09090D509 | COM NEW | 131,272 | $492,795 | dollars as filed | |
| VERADERMICS INC | 922967104 | COMMON STOCK | 5,000 | $315,750 | dollars as filed | |
| HUMANA INC COM | 444859102 | Stock | 917 | $158,999 | dollars as filed | |
| The Oncology Institute Inc W Exp 99/99/999 | 68236X118 | SPAC Combination | 1,250,000 | $54,750 | dollars as filed | |
| QUANTUM SI INC | 74765K113 | *W EXP 06/10/202 | 333,333 | $36,200 | dollars as filed | |
| PMV PHARMACEUTICALS INC | 69353Y103 | COM | 8,790 | $10,900 | dollars as filed | |
| SURROZEN INC | 86889P117 | *W EXP 08/01/203 | 166,666 | $2,667 | dollars as filed | |
| MYRIAD GENETICS INC | 62855J104 | COM | 505 | $2,273 | dollars as filed |
Amendment chain
| Filing | Role | Filed | Accepted | Ingested |
|---|---|---|---|---|
| 13F-HR 0001213900-26-057678 | this filing | 2026-05-15 | acceptance time not in the bulk data set |