DEERFIELD MANAGEMENT COMPANY, L.P. Quant / Systematic

Location: New York, NY

CIK: 0001009258 · Show all filings

Period: Q1 2026 (← Previous) (Next →)

Filing Date: May 15, 2026

Total Value: $8.476B (84.7% shares, 15.3% debt)

Holdings (82)

NUVL NUVALENT INC 20.8%
Value $1.767B Shares 17,248,450 Est. Cost Unrealized
BROOKDALE SR LIVING INC 6.0%
Value $505M Shares 306,885,000 Est. Cost Unrealized
COGT COGENT BIOSCIENCES INC 4.1%
Value $348M Shares 9,043,903 Est. Cost Unrealized
PRAX PRAXIS PRECISION MEDICINES I 3.7%
Value $310M Shares 963,351 Est. Cost Unrealized
VTRS VIATRIS INC 3.2%
Value $273M Shares 20,206,170 Est. Cost Unrealized
UTHR UNITED THERAPEUTICS CORP DEL 3.2%
Value $271M Shares 457,000 Est. Cost Unrealized
RVMD REVOLUTION MEDICINES INC 2.6%
Value $223M Shares 2,297,000 Est. Cost Unrealized
MIRUM PHARMACEUTICALS INC 2.5%
Value $209M Shares 70,000,000 Est. Cost Unrealized
ARROWHEAD PHARMACEUTICALS IN 2.4%
Value $207M Shares 200,000,000 Est. Cost Unrealized
CELC CELCUITY INC 2.3%
Value $196M Shares 1,714,000 Est. Cost Unrealized
CNC CENTENE CORP DEL 2.3%
Value $194M Shares 5,917,091 Est. Cost Unrealized
LRMR LARIMAR THERAPEUTICS INC 1.9%
Value $160M Shares 35,606,974 Est. Cost Unrealized
BKD BROOKDALE SR LIVING INC 1.9%
Value $159M Shares 11,637,032 Est. Cost Unrealized
VERA VERA THERAPEUTICS INC 1.8%
Value $150M Shares 3,722,100 Est. Cost Unrealized
IONS IONIS PHARMACEUTICALS INC 1.8%
Value $149M Shares 1,979,669 Est. Cost Unrealized
BCRX BIOCRYST PHARMACEUTICALS INC 1.7%
Value $143M Shares 15,038,000 Est. Cost Unrealized
INSP INSPIRE MED SYS INC 1.6%
Value $139M Shares 2,703,238 Est. Cost Unrealized
LEGN LEGEND BIOTECH CORP 1.6%
Value $139M Shares 7,687,638 Est. Cost Unrealized
AHCO ADAPTHEALTH CORP 1.6%
Value $137M Shares 11,477,730 Est. Cost Unrealized
NAMS NEWAMSTERDAM PHARMA COMPANY 1.6%
Value $137M Shares 4,264,789 Est. Cost Unrealized
ACHC ACADIA HEALTHCARE COMPANY IN 1.2%
Value $106M Shares 4,520,000 Est. Cost Unrealized
ARWR ARROWHEAD PHARMACEUTICALS IN 1.2%
Value $98.65M Shares 1,573,297 Est. Cost Unrealized
CPRX CATALYST PHARMACEUTICALS INC 1.2%
Value $97.64M Shares 3,943,600 Est. Cost Unrealized
INDV INDIVIOR PHARMACEUTICALS INC 1.1%
Value $94.42M Shares 3,097,790 Est. Cost Unrealized
XENE XENON PHARMACEUTICALS INC 1.1%
Value $93.95M Shares 1,615,696 Est. Cost Unrealized
IONIS PHARMACEUTICALS INC 1.1%
Value $90.61M Shares 60,000,000 Est. Cost Unrealized
PHVS PHARVARIS N V 1.0%
Value $88.31M Shares 3,126,042 Est. Cost Unrealized
SNDX SYNDAX PHARMACEUTICALS INC 1.0%
Value $88.3M Shares 3,779,900 Est. Cost Unrealized
TNGX TANGO THERAPEUTICS INC 1.0%
Value $86.75M Shares 4,146,813 Est. Cost Unrealized
ALIGNMENT HEALTHCARE INC 1.0%
Value $85.86M Shares 61,000,000 Est. Cost Unrealized
DNTH DIANTHUS THERAPEUTICS INC 1.0%
Value $85.58M Shares 1,019,813 Est. Cost Unrealized
PFE PFIZER INC 1.0%
Value $85.36M Shares 3,040,000 Est. Cost Unrealized
NBIX NEUROCRINE BIOSCIENCES INC 0.9%
Value $80.36M Shares 610,000 Est. Cost Unrealized
DAWN DAY ONE BIOPHARMACEUTICALS I 0.9%
Value $79.82M Shares 3,723,131 Est. Cost Unrealized
SVRA SAVARA INC 0.9%
Value $74.09M Shares 13,569,000 Est. Cost Unrealized
ZENAS BIOPHARMA INC 0.8%
Value $67.25M Shares 65,000,000 Est. Cost Unrealized
EHAB ENHABIT INC 0.8%
Value $66.9M Shares 4,747,746 Est. Cost Unrealized
NEOGENOMICS INC 0.8%
Value $66.65M Shares 72,689,000 Est. Cost Unrealized
GMAB GENMAB A/S 0.8%
Value $66.06M Shares 2,462,000 Est. Cost Unrealized
BIO BIO RAD LABS INC 0.7%
Value $63.02M Shares 226,070 Est. Cost Unrealized
LNTH LANTHEUS HLDGS INC 0.7%
Value $62.8M Shares 827,999 Est. Cost Unrealized
SPRY ARS PHARMACEUTICALS INC 0.7%
Value $60.26M Shares 7,503,812 Est. Cost Unrealized
STOK STOKE THERAPEUTICS INC 0.7%
Value $59.37M Shares 1,823,500 Est. Cost Unrealized
NVST ENVISTA HOLDINGS CORPORATION 0.7%
Value $56.07M Shares 2,210,100 Est. Cost Unrealized
IDYA IDEAYA BIOSCIENCES INC 0.6%
Value $50.98M Shares 1,530,008 Est. Cost Unrealized
BLTE BELITE BIO INC 0.6%
Value $48.47M Shares 304,013 Est. Cost Unrealized
BMRN BIOMARIN PHARMACEUTICAL INC 0.6%
Value $48.1M Shares 851,556 Est. Cost Unrealized
KYMR KYMERA THERAPEUTICS INC 0.6%
Value $46.74M Shares 561,170 Est. Cost Unrealized
CERT CERTARA INC 0.5%
Value $44.51M Shares 7,808,605 Est. Cost Unrealized
BBOT BRIDGEBIO ONCOLOGY THERAPEUT 0.5%
Value $43.72M Shares 4,885,446 Est. Cost Unrealized
IRON DISC MEDICINE INC 0.5%
Value $42.01M Shares 657,000 Est. Cost Unrealized
LIVANOVA PLC 0.5%
Value $40.03M Shares 34,280,000 Est. Cost Unrealized
SION SIONNA THERAPEUTICS INC 0.5%
Value $38.91M Shares 970,590 Est. Cost Unrealized
CDNA CAREDX INC 0.4%
Value $38.04M Shares 2,191,000 Est. Cost Unrealized
GPCR STRUCTURE THERAPEUTICS INC 0.4%
Value $37.02M Shares 767,993 Est. Cost Unrealized
IMMUNOCORE HLDGS PLC 0.3%
Value $27.03M Shares 30,000,000 Est. Cost Unrealized
VCYT VERACYTE INC 0.3%
Value $23.38M Shares 726,000 Est. Cost Unrealized
ALNY ALNYLAM PHARMACEUTICALS INC 0.3%
Value $22.48M Shares 67,935 Est. Cost Unrealized
EMBC EMBECTA CORP 0.3%
Value $22.41M Shares 2,534,961 Est. Cost Unrealized
TYRA TYRA BIOSCIENCES INC 0.2%
Value $21.03M Shares 549,000 Est. Cost Unrealized
FHTX FOGHORN THERAPEUTICS INC 0.2%
Value $21.01M Shares 4,394,367 Est. Cost Unrealized
DRUG BRIGHT MINDS BIOSCIENCES INC 0.2%
Value $20.65M Shares 283,000 Est. Cost Unrealized
CMPX COMPASS THERAPEUTICS INC 0.2%
Value $19.08M Shares 3,606,000 Est. Cost Unrealized
MNPR MONOPAR THERAPEUTICS INC 0.2%
Value $17.74M Shares 323,745 Est. Cost Unrealized
KYTX KYVERNA THERAPEUTICS INC 0.2%
Value $17.26M Shares 2,000,000 Est. Cost Unrealized
SGP SPYGLASS PHARMA INC 0.2%
Value $14.25M Shares 550,000 Est. Cost Unrealized
BBNX BETA BIONICS INC 0.2%
Value $13.27M Shares 1,324,000 Est. Cost Unrealized
TSHA TAYSHA GENE THERAPIES INC 0.1%
Value $12.17M Shares 2,722,165 Est. Cost Unrealized
TOI THE ONCOLOGY INSTITUTE INC 0.1%
Value $10.32M Shares 3,360,052 Est. Cost Unrealized
CGEM CULLINAN THERAPEUTICS INC 0.1%
Value $5.487M Shares 386,169 Est. Cost Unrealized
ANNX ANNEXON INC 0.0%
Value $3.235M Shares 583,913 Est. Cost Unrealized
ALEC ALECTOR INC 0.0%
Value $2.269M Shares 1,055,192 Est. Cost Unrealized
NAMSW NEWAMSTERDAM PHARMA COMPANY 0.0%
Value $1.859M Shares 92,787 Est. Cost Unrealized
EW EDWARDS LIFESCIENCES CORP 0.0%
Value $1.097M Shares 13,702 Est. Cost Unrealized
PHGE BIOMX INC 0.0%
Value $493K Shares 131,272 Est. Cost Unrealized
MANE VERADERMICS INC 0.0%
Value $316K Shares 5,000 Est. Cost Unrealized
HUM HUMANA INC 0.0%
Value $159K Shares 917 Est. Cost Unrealized
TOIIW THE ONCOLOGY INSTITUTE INC 0.0%
Value $54,750 Shares 1,250,000 Est. Cost Unrealized
QSIAW QUANTUM SI INC 0.0%
Value $36,200 Shares 333,333 Est. Cost Unrealized
PMVP PMV PHARMACEUTICALS INC 0.0%
Value $10,900 Shares 8,790 Est. Cost Unrealized
SRZNW SURROZEN INC 0.0%
Value $2,667 Shares 166,666 Est. Cost Unrealized
MYGN MYRIAD GENETICS INC 0.0%
Value $2,273 Shares 505 Est. Cost Unrealized