Deerfield Management Company, L.P. 13F holdings, Q3 2025
Holdings as of September 30, 2025 · filings on SEC EDGAR · latest filing →
Deerfield Management Company, L.P. disclosed 151 US equity positions worth $6.5bn in its Q3 2025 13F filing. The largest position was NUVALENT INC at 23.8% of the reported book, followed by CNC and MERUS N V. Against the Q2 2025 filing, it opened 10 new positions, added to 20 and reduced 13 among the top 50 holdings.
What did Deerfield Management Company, L.P. own in Q3 2025? Top 50 positions
| # | Stock | Sector | Weight | Value | Shares | Δ shares | vs Q2 2025 |
|---|---|---|---|---|---|---|---|
| 1 | NUVALENT INC | 23.8% | $1.6bn | 17,991,024 | 0% | held | |
| 2 | CNC CENTENE CORP DEL | Healthcare | 4.9% | $322.8m | 9,046,000 | 184% | added |
| 3 | MERUS N V | 4.4% | $286.9m | 3,046,916 | -10% | reduced | |
| 4 | VTRS VIATRIS INC | Healthcare | 3.7% | $238.6m | 24,099,083 | 0% | held |
| 5 | UTHR UNITED THERAPEUTICS CORP DEL | Healthcare | 2.7% | $178.6m | 425,993 | -21% | reduced |
| 6 | RVMD REVOLUTION MEDICINES INC | Healthcare | 2.6% | $170.5m | 3,650,342 | 8% | added |
| 7 | INDIVIOR PLC | 2.6% | $168.5m | 6,986,811 | -34% | reduced | |
| 8 | MIRM MIRUM PHARMACEUTICALS INC | 2.6% | $168.2m | 70,000,000 | 0% | held | |
| 9 | NBIX NEUROCRINE BIOSCIENCES INC | Healthcare | 2.5% | $166.3m | 1,184,345 | 1% | added |
| 10 | COGT COGENT BIOSCIENCES INC | Healthcare | 2.0% | $130.0m | 9,053,118 | 243% | added |
| 11 | IONS IONIS PHARMACEUTICALS INC | Healthcare | 2.0% | $129.5m | 1,979,669 | – | new |
| 12 | NEWAMSTERDAM PHARMA COMPANY | 1.9% | $121.3m | 4,266,693 | -17% | reduced | |
| 13 | VERA VERA THERAPEUTICS INC | Healthcare | 1.6% | $105.8m | 3,641,157 | 9% | added |
| 14 | BMY BRISTOL-MYERS SQUIBB CO | Healthcare | 1.6% | $105.4m | 2,337,771 | – | new |
| 15 | AHCO ADAPTHEALTH CORP | Healthcare | 1.6% | $102.7m | 11,477,730 | 16% | added |
| 16 | LRMR LARIMAR THERAPEUTICS INC | Healthcare | 1.5% | $98.9m | 30,606,974 | 44% | added |
| 17 | BKD BROOKDALE SR LIVING INC | Healthcare | 1.5% | $98.6m | 11,641,642 | -24% | reduced |
| 18 | CATALYST PHARMACEUTICALS INC | 1.5% | $98.0m | 4,974,767 | 73% | added | |
| 19 | LEGN LEGEND BIOTECH CORP | Healthcare | 1.5% | $96.6m | 2,962,338 | 0% | held |
| 20 | BCRX BIOCRYST PHARMACEUTICALS INC | Healthcare | 1.4% | $92.4m | 12,169,000 | 159% | added |
| 21 | TNDM TANDEM DIABETES CARE INC | 1.3% | $87.1m | 100,000,000 | 150% | added | |
| 22 | MRK MERCK & CO INC | Healthcare | 1.3% | $86.4m | 1,030,000 | 20% | added |
| 23 | PFE PFIZER INC | Healthcare | 1.3% | $84.2m | 3,303,790 | -23% | reduced |
| 24 | IONIS PHARMACEUTICALS INC | 1.3% | $82.7m | 60,000,000 | – | new | |
| 25 | CERT CERTARA INC | Healthcare | 1.3% | $82.4m | 6,739,537 | 72% | added |
| 26 | INSP INSPIRE MED SYS INC | Healthcare | 1.2% | $77.7m | 1,047,694 | 648% | added |
| 27 | SPRY ARS PHARMACEUTICALS INC | Healthcare | 1.2% | $75.4m | 7,503,812 | -23% | reduced |
| 28 | INSM INSMED INC | Healthcare | 1.0% | $67.8m | 471,000 | -33% | reduced |
| 29 | BIO BIO RAD LABS INC | Healthcare | 1.0% | $63.4m | 226,070 | 0% | held |
| 30 | NEOGENOMICS INC | 1.0% | $62.9m | 72,689,000 | – | new | |
| 31 | PHVS PHARVARIS N V | 0.9% | $60.9m | 2,442,464 | 21% | added | |
| 32 | IRON DISC MEDICINE INC | Healthcare | 0.9% | $60.8m | 919,403 | 0% | held |
| 33 | IDYA IDEAYA BIOSCIENCES INC | Healthcare | 0.9% | $58.6m | 2,153,043 | -45% | reduced |
| 34 | BBOT BRIDGEBIO ONCOLOGY THERAPEUT | 0.9% | $56.6m | 4,885,446 | – | new | |
| 35 | NVST ENVISTA HOLDINGS CORPORATION | Healthcare | 0.7% | $46.7m | 2,294,036 | 4% | added |
| 36 | PRAX PRAXIS PRECISION MEDICINES I | Healthcare | 0.7% | $44.6m | 840,851 | 22% | added |
| 37 | CRMD CORMEDIX INC | 0.6% | $38.7m | 3,323,833 | – | new | |
| 38 | ENHABIT INC | 0.6% | $38.0m | 4,747,746 | -1% | reduced | |
| 39 | EMBC EMBECTA CORP | Healthcare | 0.6% | $37.0m | 2,620,421 | -5% | reduced |
| 40 | LIVANOVA PLC | 0.6% | $36.9m | 34,280,000 | 37% | added | |
| 41 | CELC CELCUITY INC | Healthcare | 0.6% | $36.2m | 733,530 | – | new |
| 42 | CNMD CONMED CORP | Healthcare | 0.5% | $35.8m | 760,196 | 9% | added |
| 43 | ZBIO ZENAS BIOPHARMA INC | 0.5% | $34.7m | 1,562,942 | 0% | held | |
| 44 | NEO NEOGENOMICS INC | Healthcare | 0.5% | $34.3m | 4,447,331 | 107% | added |
| 45 | ARWR ARROWHEAD PHARMACEUTICALS IN | Healthcare | 0.5% | $34.2m | 993,000 | – | new |
| 46 | DAWNGBX DAY ONE BIOPHARMACEUTICALS I | 0.5% | $33.2m | 4,705,413 | 26% | added | |
| 47 | KYMR KYMERA THERAPEUTICS INC | Healthcare | 0.5% | $32.4m | 572,258 | -12% | reduced |
| 48 | CDNA CAREDX INC | Healthcare | 0.5% | $31.9m | 2,191,000 | – | new |
| 49 | ALNY ALNYLAM PHARMACEUTICALS INC | Healthcare | 0.5% | $31.0m | 67,935 | -53% | reduced |
| 50 | ACHC ACADIA HEALTHCARE COMPANY IN | Healthcare | 0.5% | $29.4m | 1,189,000 | – | new |
Weights are shares of the reported long US equity book (options excluded). Values are as filed, normalised to whole dollars. Share changes compare against the immediately preceding filing only.