DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C)
- SEC CIK
- 0001009258
Holdings, Q2 2026
Positions as of Jun 30, 2026, filed Aug 14, 2026.SEC
- Positions
- 82
- 0 vs. Q1 2026
- Total value
- $9.59B
- +$1.11B (+13.1%) vs. Q1 2026
Compare with Q1 2026: new, added, reduced and sold out
Positions
Long positions only. Changes compare share counts with Q1 2026.
| Security | Class | Shares | Value | % of portfolio | Change in shares | Action | History |
|---|---|---|---|---|---|---|---|
| NUVALENT INC670703107 | COM | 17,248,450 | $2.13B | 22.22% | 00.0% | Unchanged | – |
| BROOKDALE SR LIVING INC112463AF1 | NOTE 3.500%10/1 | – | $585.7M | 6.11% | – | – | – |
| RVMDREVOLUTION MEDICINES INC | COM | 2,392,000 | $447.97M | 4.67% | +95,000+4.1% | Added | View |
| PRAXPRAXIS PRECISION MEDICINES I | COM NEW | 963,351 | $322.52M | 3.36% | 00.0% | Unchanged | View |
| VTRSVIATRIS INC COM | Stock | 20,206,170 | $320.87M | 3.35% | 00.0% | Unchanged | View |
| CNCCENTENE CORP DEL COM | Stock | 4,901,000 | $314.6M | 3.28% | −1,016,091−17.2% | Reduced | View |
| REVOLUTION MEDICINES INC76155XAA8 | NOTE 0.500% 5/0 | – | $251.68M | 2.63% | – | New | – |
| UTHRUNITED THERAPEUTICS CORP DEL | COM | 457,000 | $247.62M | 2.58% | 00.0% | Unchanged | View |
| ARROWHEAD PHARMACEUTICALS IN04280AAC4 | NOTE 1/1 | – | $240.54M | 2.51% | – | – | – |
| LEGNLEGEND BIOTECH CORP | SPONSORED ADS | 8,137,638 | $235.01M | 2.45% | +450,000+5.9% | Added | View |
| COGTCOGENT BIOSCIENCES INC | COM | 5,006,104 | $193.74M | 2.02% | −4,037,799−44.6% | Reduced | View |
| GMABGENMAB A/S | SPONSORED ADS | 6,865,000 | $188.58M | 1.97% | +4,403,000+178.8% | Added | View |
| BKDBROOKDALE SR LIVING INC | COM | 11,637,032 | $187.24M | 1.95% | 00.0% | Unchanged | View |
| VERAVERA THERAPEUTICS INC | CL A | 3,916,400 | $168.05M | 1.75% | +194,300+5.2% | Added | View |
| IONSIONIS PHARMACEUTICALS INC | COM | 1,979,669 | $156.97M | 1.64% | 00.0% | Unchanged | View |
| CELCCELCUITY INC | COM | 1,451,014 | $151.81M | 1.58% | −262,986−15.3% | Reduced | View |
| BCRXBIOCRYST PHARMACEUTICALS INC | COM | 15,096,403 | $150.96M | 1.57% | +58,403+0.4% | Added | View |
| NAMSNEWAMSTERDAM PHARMA COMPANY | ORDINARY SHARES | 4,264,789 | $144.53M | 1.51% | 00.0% | Unchanged | View |
| ACHCACADIA HEALTHCARE COMPANY IN | COM | 4,520,000 | $133.48M | 1.39% | 00.0% | Unchanged | View |
| TNGXTANGO THERAPEUTICS INC | COM | 4,190,611 | $131M | 1.37% | +43,798+1.1% | Added | View |
| AHCOADAPTHEALTH CORP | COMMON STOCK | 11,477,730 | $119.6M | 1.25% | 00.0% | Unchanged | View |
| PHVSPHARVARIS N V | COM | 3,376,042 | $116.74M | 1.22% | +250,000+8.0% | Added | View |
| CELCCELCUITY INC | NOTE 0.250% 8/0 | – | $113.78M | 1.19% | – | New | View |
| ARWRARROWHEAD PHARMACEUTICALS IN | COM | 1,389,055 | $113.22M | 1.18% | −184,242−11.7% | Reduced | View |
| DNTHDIANTHUS THERAPEUTICS INC | COM | 1,125,313 | $109.7M | 1.14% | +105,500+10.3% | Added | View |
| LRMRLARIMAR THERAPEUTICS INC | COM | 35,606,974 | $108.6M | 1.13% | 00.0% | Unchanged | View |
| MLYSMINERALYS THERAPEUTICS INC | COM | 3,958,000 | $106.79M | 1.11% | +3,958,000 | New | View |
| ALHCALIGNMENT HEALTHCARE INC | NOTE 4.250%11/1 | – | $103.83M | 1.08% | – | – | View |
| IDYAIDEAYA BIOSCIENCES INC | COM | 2,714,503 | $101.17M | 1.06% | +1,184,495+77.4% | Added | View |
| XENEXENON PHARMACEUTICALS INC | COM | 1,615,696 | $97.52M | 1.02% | 00.0% | Unchanged | View |
| IONSIONIS PHARMACEUTICALS INC | NOTE 1.750% 6/1 | – | $93.1M | 0.97% | – | – | View |
| SVRASAVARA INC | COM | 13,569,000 | $83.59M | 0.87% | 00.0% | Unchanged | View |
| LNTHLANTHEUS HLDGS INC COM | Stock | 752,999 | $83.54M | 0.87% | −75,000−9.1% | Reduced | View |
| SNDXSYNDAX PHARMACEUTICALS INC | COM | 3,779,900 | $82.63M | 0.86% | 00.0% | Unchanged | View |
| ZBIOZENAS BIOPHARMA INC | NOTE 2.500% 4/0 | – | $80.32M | 0.84% | – | – | View |
| BMRNBIOMARIN PHARMACEUTICAL INC | COM | 1,332,836 | $76.26M | 0.80% | +481,280+56.5% | Added | View |
| PFEPFIZER INC COM | Stock | 3,040,000 | $73.2M | 0.76% | 00.0% | Unchanged | View |
| INDVINDIVIOR PHARMACEUTICALS INC | COM | 1,648,895 | $67.65M | 0.71% | −1,448,895−46.8% | Reduced | View |
| BIOBIO RAD LABS INC | CL A | 226,070 | $66.38M | 0.69% | 00.0% | Unchanged | View |
| SPRYARS PHARMACEUTICALS INC | COM | 7,503,812 | $60.11M | 0.63% | 00.0% | Unchanged | View |
| STOKSTOKE THERAPEUTICS INC | COM | 1,823,500 | $59.66M | 0.62% | 00.0% | Unchanged | View |
| GPCRSTRUCTURE THERAPEUTICS INC | SPONSORED ADS | 1,086,000 | $58.29M | 0.61% | +318,007+41.4% | Added | View |
| NVSTENVISTA HOLDINGS CORPORATION | COM | 2,210,100 | $58.24M | 0.61% | 00.0% | Unchanged | View |
| INSPINSPIRE MED SYS INC | COM | 1,296,862 | $57.85M | 0.60% | −1,406,376−52.0% | Reduced | View |
| CDNACAREDX INC | COM | 1,997,618 | $56.93M | 0.59% | −193,382−8.8% | Reduced | View |
| BSXBOSTON SCIENTIFIC CORP COM | Stock | 1,315,000 | $56.12M | 0.59% | +1,315,000 | New | View |
| BLTEBELITE BIO INC | SPONSORED ADS | 357,199 | $55M | 0.57% | +53,186+17.5% | Added | View |
| PBLSPARABILIS MEDICINES INC COM | Stock | 1,880,704 | $51.47M | 0.54% | +1,880,704 | New | View |
| CERTCERTARA INC | COM | 7,512,928 | $49.21M | 0.51% | −295,677−3.8% | Reduced | View |
| IRONDISC MEDICINE INC | COM | 657,000 | $48.05M | 0.50% | 00.0% | Unchanged | View |
| LIVNLIVANOVA PLC | NOTE 2.500% 3/1 | – | $46.49M | 0.48% | – | – | View |
| BBOTBRIDGEBIO ONCOLOGY THERAPEUT | COM NEW | 4,885,446 | $37.23M | 0.39% | 00.0% | Unchanged | View |
| TYRATYRA BIOSCIENCES INC | COM | 1,017,000 | $32.48M | 0.34% | +468,000+85.2% | Added | View |
| MNPRMONOPAR THERAPEUTICS INC | COM NEW | 323,745 | $29.98M | 0.31% | 00.0% | Unchanged | View |
| SIONSIONNA THERAPEUTICS INC | COM | 680,916 | $29.95M | 0.31% | −289,674−29.8% | Reduced | View |
| IMMUNOCORE HLDGS PLC45258DAB1 | NOTE 2.500% 2/0 | – | $27.1M | 0.28% | – | – | – |
| AVLNAVALYN PHARMACEUTICALS INC | COM SHS | 731,000 | $24.06M | 0.25% | +731,000 | New | View |
| FHTXFOGHORN THERAPEUTICS INC | COM | 4,394,367 | $21.44M | 0.22% | 00.0% | Unchanged | View |
| BBNXBETA BIONICS INC | COM | 1,324,000 | $20.75M | 0.22% | 00.0% | Unchanged | View |
| ALNYALNYLAM PHARMACEUTICALS INC | COM | 67,935 | $20.45M | 0.21% | 00.0% | Unchanged | View |
| DRUGBRIGHT MINDS BIOSCIENCES INC | COM NEW | 283,000 | $19.87M | 0.21% | 00.0% | Unchanged | View |
| ODTXODYSSEY THERAPEUTICS INC | COMMON STOCK | 1,046,139 | $19.57M | 0.20% | +1,046,139 | New | View |
| STLNTHE ONCOLOGY INSTITUTE INC | COM | 3,360,052 | $18.25M | 0.19% | 00.0% | Unchanged | View |
| KYTXKYVERNA THERAPEUTICS INC | COM | 2,000,000 | $17.82M | 0.19% | 00.0% | Unchanged | View |
| ALMRALAMAR BIOSCIENCES INC | COMMON STOCK | 600,000 | $16.25M | 0.17% | +600,000 | New | View |
| CHECHEMED CORP NEW | COM | 30,000 | $13.97M | 0.15% | +30,000 | New | View |
| SGPSPYGLASS PHARMA INC | COM SHS | 550,000 | $12.24M | 0.13% | 00.0% | Unchanged | View |
| NEONEOGENOMICS INC | NOTE 0.250% 1/1 | – | $12.2M | 0.13% | – | – | View |
| ADAGADAGENE INC | ADS | 2,666,666 | $11.2M | 0.12% | +2,666,666 | New | View |
| COAGHEMAB THERAPEUTICS HLDGS INC | COM SHS | 275,000 | $10.1M | 0.11% | +275,000 | New | View |
| MOBIMOBIA MED INC | COMMON STOCK | 670,752 | $8.99M | 0.09% | +670,752 | New | View |
| EMBCEMBECTA CORP COMMON STOCK | Stock | 2,534,961 | $8.26M | 0.09% | 00.0% | Unchanged | View |
| VCYTVERACYTE INC | COM | 101,000 | $5.93M | 0.06% | −625,000−86.1% | Reduced | View |
| ANNXANNEXON INC | COM | 583,913 | $3.33M | 0.03% | 00.0% | Unchanged | View |
| ALECALECTOR INC | COM | 1,055,192 | $2.12M | 0.02% | 00.0% | Unchanged | View |
| NAMSWNEWAMSTERDAM PHARMA COMPANY | *W EXP 11/22/202 | 92,787 | $1.98M | 0.02% | 00.0% | Unchanged | View |
| EWEDWARDS LIFESCIENCES CORP COM | Stock | 13,702 | $1.24M | 0.01% | 00.0% | Unchanged | View |
| MIRMMIRUM PHARMACEUTICALS INC | COM | 6,027 | $705.58K | 0.01% | +6,027 | New | View |
| HUMHUMANA INC COM | Stock | 917 | $364.25K | 0.00% | 00.0% | Unchanged | View |
| STLNWONCOLOGY INSTITU | EQUITY WRT | 1,250,000 | $51K | 0.00% | 00.0% | Unchanged | View |
| PMVPPMV PHARMACEUTICALS INC | COM | 8,790 | $11.78K | 0.00% | 00.0% | Unchanged | View |
| SURROZEN INC86889P117 | *W EXP 08/01/203 | 166,666 | $2.75K | 0.00% | 00.0% | Unchanged | – |
Sold out since Q1 2026 (13)
Positions held at the end of Q1 2026 that are no longer in this filing.
| Security | Class | Shares, Q1 2026 | Value, Q1 2026 | % of portfolio, Q1 2026 |
|---|---|---|---|---|
| MIRMMIRUM PHARMACEUTICALS INC | NOTE 4.000% 5/0 | – | $209.44M | 2.47% |
| CATALYST PHARMACEUTICALS INC14888U101 | COM | 3,943,600 | $97.64M | 1.15% |
| NBIXNEUROCRINE BIOSCIENCES INC COM | Stock | 610,000 | $80.36M | 0.95% |
| DAY ONE BIOPHARMACEUTICALS INC COM23954D109 | Stock | 3,723,131 | $79.82M | 0.94% |
| ENHABIT INC29332G102 | COM | 4,747,746 | $66.9M | 0.79% |
| KYMRKYMERA THERAPEUTICS INC | COM | 561,170 | $46.74M | 0.55% |
| CMPXCOMPASS THERAPEUTICS INC | COM | 3,606,000 | $19.08M | 0.23% |
| TSHATAYSHA GENE THERAPIES INC | COM SHS | 2,722,165 | $12.17M | 0.14% |
| CGEMCULLINAN THERAPEUTICS INC | COM | 386,169 | $5.49M | 0.06% |
| BIOMX INC09090D509 | COM NEW | 131,272 | $492.8K | 0.01% |
| MANEVERADERMICS INC | COMMON STOCK | 5,000 | $315.75K | 0.00% |
| QUANTUM SI INC74765K113 | *W EXP 06/10/202 | 333,333 | $36.2K | 0.00% |
| MYGNMYRIAD GENETICS INC | COM | 505 | $2.27K | 0.00% |
13F filings by quarter
| Quarter | Filed | Positions | Total value | Changes | Filing |
|---|---|---|---|---|---|
| Q2 2026 | Aug 14, 2026 | 82 | $9.59B | vs. Q1 2026 | SEC |
| Q1 2026 | May 15, 2026 | 82 | $8.48B | vs. Q4 2025 | SEC |
| Q4 2025 | Feb 17, 2026 | 149 | $7.8B | vs. Q3 2025 | SEC |
| Q3 2025 | Nov 14, 2025 | 151 | $6.52B | vs. Q2 2025 | SEC |
| Q2 2025 | Aug 14, 2025 | 124 | $5.51B | vs. Q1 2025 | SEC |
| Q1 2025 | May 15, 2025 | 122 | $5.04B | vs. Q4 2024 | SEC |
| Q4 2024 | Feb 14, 2025 | 105 | $5.26B | vs. Q3 2024 | SEC |
| Q3 2024 | Nov 14, 2024 | 443 | $6.69B | vs. Q2 2024 | SEC |
| Q2 2024 | Aug 14, 2024 | 433 | $6.01B | vs. Q1 2024 | SEC |
| Q1 2024 | May 15, 2024 | 367 | $5.75B | vs. Q4 2023 | SEC |
| Q4 2023 | Feb 14, 2024 | 222 | $5.42B | vs. Q3 2023 | SEC |
| Q3 2023 | Nov 14, 2023 | 88 | $4.54B | vs. Q2 2023 | SEC |
| Q2 2023 | Aug 14, 2023 | 101 | $4.68B | vs. Q1 2023 | SEC |
| Q1 2023 | May 15, 2023 | 106 | $4.49B | vs. Q4 2022 | SEC |
| Q4 2022 | Feb 14, 2023 | 104 | $4.83B | vs. Q3 2022 | SEC |
| Q3 2022 | Nov 14, 2022 | 129 | $5.01B | vs. Q2 2022 | SEC |
| Q2 2022 | Aug 15, 2022 | 126 | $4.75B | vs. Q1 2022 | SEC |
| Q1 2022 | May 16, 2022 | 121 | $4.47B | vs. Q4 2021 | SEC |
| Q4 2021 | Feb 14, 2022 | 125 | $4.75B | vs. Q3 2021 | SEC |
| Q3 2021 | Nov 15, 2021 | 132 | $5.11B | vs. Q2 2021 | SEC |
| Q2 2021 | Aug 16, 2021 | 143 | $5.63B | vs. Q1 2021 | SEC |
| Q1 2021 | May 17, 2021 | 133 | $4.76B | – | SEC |