Latest DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) Stock Portfolio
$8.48Billion– No. of Holdings #73
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) Performance:
2026 Q1: 1.6%YTD: 1.6%2025: 33.28%
Performance for 2026 Q1 is 1.6%, and YTD is 1.6%, and 2025 is 33.28%.
About DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) and 13F Hedge Fund Stock Holdings
DEERFIELD MANAGEMENT COMPANY, L.P. is a hedge fund based in New York, NY. On 2026-05-15, the fund reported it's updated stock portfolio. In the 13F Holdings report, DEERFIELD MANAGEMENT COMPANY, L.P. reported an equity portfolio of $8.5 Billions as of 31 Mar, 2026.
The top stock holdings of DEERFIELD MANAGEMENT COMPANY, L.P. are NUVL, COGT, PRAX. The fund has invested 20.9% of it's portfolio in NUVALENT INC and 4.1% of portfolio in COGENT BIOSCIENCES INC.
The fund managers got completely rid off INDIVIOR PLC, PHREESIA INC (PHR) and VENTAS INC (VTR) stocks. They significantly reduced their stock positions in NEUROCRINE BIOSCIENCES INC (NBIX), IDEAYA BIOSCIENCES INC (IDYA) and REVOLUTION MEDICINES INC (RVMD). DEERFIELD MANAGEMENT COMPANY, L.P. opened new stock positions in INDIVIOR PHARMACEUTICALS INC, SYNDAX PHARMACEUTICALS INC (SNDX) and PFIZER INC (PFE). The fund showed a lot of confidence in some stocks as they added substantially to XENON PHARMACEUTICALS INC (XENE), MONOPAR THERAPEUTICS INC (MNPR) and INSPIRE MED SYS INC (INSP).
The top stock holdings of DEERFIELD MANAGEMENT COMPANY, L.P. are NUVL, COGT, PRAX. The fund has invested 20.9% of it's portfolio in NUVALENT INC and 4.1% of portfolio in COGENT BIOSCIENCES INC.
The fund managers got completely rid off INDIVIOR PLC, PHREESIA INC (PHR) and VENTAS INC (VTR) stocks. They significantly reduced their stock positions in NEUROCRINE BIOSCIENCES INC (NBIX), IDEAYA BIOSCIENCES INC (IDYA) and REVOLUTION MEDICINES INC (RVMD). DEERFIELD MANAGEMENT COMPANY, L.P. opened new stock positions in INDIVIOR PHARMACEUTICALS INC, SYNDAX PHARMACEUTICALS INC (SNDX) and PFIZER INC (PFE). The fund showed a lot of confidence in some stocks as they added substantially to XENON PHARMACEUTICALS INC (XENE), MONOPAR THERAPEUTICS INC (MNPR) and INSPIRE MED SYS INC (INSP).
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) Equity Portfolio Value
Last Reported on: 15 May, 2026
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) Annual Return Estimates Vs S&P 500
Our best estimate is that DEERFIELD MANAGEMENT COMPANY, L.P. made a return of 1.6% in the last quarter. In trailing 12 months, it's portfolio return was 48.41%.
- Performance
- S&P 500
New Buys
| Ticker | $ Bought |
|---|---|
| arrowhead pharmaceuticals in | 207,182,000 |
| indivior pharmaceuticals inc | 94,420,600 |
| syndax pharmaceuticals inc | 88,298,500 |
| dianthus therapeutics inc | 85,582,700 |
| pfizer inc | 85,363,200 |
| zenas biopharma inc | 67,252,900 |
| genmab a/s | 66,055,500 |
| biomarin pharmaceutical inc | 48,104,400 |
New stocks bought by DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C)
Additions
| Ticker | % Inc. |
|---|---|
| xenon pharmaceuticals inc | 198 |
| monopar therapeutics inc | 89.82 |
| inspire med sys inc | 79.51 |
| tango therapeutics inc | 42.65 |
| beta bionics inc | 41.11 |
| belite bio inc | 30.02 |
| legend biotech corp | 29.6 |
| disc medicine inc | 28.53 |
Additions to existing portfolio by DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C)
Reductions
| Ticker | % Reduced |
|---|---|
| neurocrine biosciences inc | -48.49 |
| ideaya biosciences inc | -28.94 |
| revolution medicines inc | -20.65 |
| catalyst pharmaceuticals inc | -19.7 |
| arrowhead pharmaceuticals in | -14.17 |
| vera therapeutics inc | -8.32 |
| centene corp del | -8.23 |
| embecta corp | -7.89 |
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) reduced stake in above stock
Sold off
| Ticker | $ Sold |
|---|---|
| lantheus hldgs inc | -28,911,400 |
| indivior plc | -121,743,000 |
| phreesia inc | -33,823,800 |
| calcimedica inc | -8,567,000 |
| cormedix inc | -12,885,400 |
| petco health & wellness co i | -2,631,030 |
| edgewise therapeutics inc | -19,000,700 |
| butterfly network inc | -12,907 |
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) got rid off the above stocks
Sector Distribution
DEERFIELD MANAGEMENT COMPANY, L.P. has about 86.8% of it's holdings in Healthcare sector.
- Healthcare
- Others
| Sector | % |
|---|---|
| Healthcare | 86.8 |
| Others | 12.4 |
Market Cap. Distribution
DEERFIELD MANAGEMENT COMPANY, L.P. has about 18.8% of it's portfolio invested in the large-cap and mega-cap stocks.
- MID-CAP
- LARGE-CAP
- SMALL-CAP
- UNALLOCATED
- MICRO-CAP
| Category | % |
|---|---|
| MID-CAP | 49.1 |
| LARGE-CAP | 18.8 |
| SMALL-CAP | 17.3 |
| UNALLOCATED | 12.4 |
| MICRO-CAP | 2.4 |
Stocks belong to which Index?
About 67.8% of the stocks held by DEERFIELD MANAGEMENT COMPANY, L.P. either belong to S&P 500 or RUSSELL 2000 index.
- RUSSELL 2000
- Others
- S&P 500
| Index | % |
|---|---|
| RUSSELL 2000 | 59.2 |
| Others | 32.2 |
| S&P 500 | 8.6 |
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) Holdings Map
This heatmap illustrates the top 50 positions within the fund's portfolio.
Current Stock Holdings of DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C)
DEERFIELD MANAGEMENT COMPANY, L.P. has 73 stocks in it's portfolio. About 46% of the portfolio is in top 10 stocks. INSP proved to be the most loss making stock for the portfolio. UTHR was the most profitable stock for DEERFIELD MANAGEMENT COMPANY, L.P. last quarter.
Last Reported on: 15 May, 2026| Ticker | Namesorted ascending | % Portfolio | Shares Held | $ Value | Type | % Change | Options | |
|---|---|---|---|---|---|---|---|---|
| ABBV | abbvie inc | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| ABEO | abeona therapeutics inc | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| ABT | abbott labs | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| ACHC | acadia healthcare company in | 1.25 | 4,520,000 | 105,723,000 | unchanged | 0.00 | ||
| ADUS | addus homecare corp | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| AGLE | spyre therapeutics inc | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| AHCO | adapthealth corp | 1.61 | 11,477,700 | 136,585,000 | unchanged | 0.00 | ||
| ALEC | alector inc | 0.03 | 1,055,190 | 2,268,660 | unchanged | 0.00 | ||
| ALGN | align technology inc | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| ALHC | alignment healthcare inc | 1.01 | 61,000,000 | 85,858,700 | unchanged | 0.00 | ||
| ALHC | alignment healthcare inc | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| ALNY | alnylam pharmaceuticals inc | 0.26 | 67,935 | 22,477,700 | unchanged | 0.00 | ||
| AMPH | amphastar pharmaceuticals in | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| ANNX | annexon inc | 0.04 | 583,913 | 3,234,880 | unchanged | 0.00 | ||
| ARVN | arvinas inc | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| ARWR | arrowhead pharmaceuticals in | 2.44 | 200,000,000 | 207,182,000 | new | |||
| ARWR | arrowhead pharmaceuticals in | 1.16 | 1,573,300 | 98,645,700 | reduced | -14.17 | ||
| ATEC | alphatec hldgs inc | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| ATRC | atricure inc | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| AVNS | avanos med inc | 0.00 | 0.00 | 0.00 | sold off | -100 | ||