DEERFIELD MANAGEMENT COMPANY, L.P.
Comparing Q4 2025 vs Q3 2025
Sorting applies to all holdings for this quarter on the server, then the page is sliced. Prior-quarter values come from the full prior-quarter filing.
Issuer ▲▼ | Shares | Value ($K) | ||||
|---|---|---|---|---|---|---|
Q3 2025 ▲▼ | Q4 2025 ▲▼ | Change ▲▼ | Q3 2025 ▲▼ | Q4 2025 ▲▼ | Change ▲▼ | |
| BROOKDALE SR LIVING INC | 0 | 0 | 0 | 0 | 427,493,874 | +427,493,874 |
| PRAXIS PRECISION MEDICINES I | 840,851 | 903,351 | +62,500 | 44,565,103 | 266,253,674 | +221,688,571 |
| COGENT BIOSCIENCES INC | 9,053,118 | 9,043,903 | -9,215 | 130,002,774 | 321,239,435 | +191,236,661 |
| MIRUM PHARMACEUTICALS INC | 0 | 0 | 0 | 0 | 180,707,800 | +180,707,800 |
| NUVALENT INC | 17,991,024 | 17,248,450 | -742,574 | 1,555,863,756 | 1,735,021,586 | +179,157,830 |
| CELCUITY INC | 733,530 | 1,714,000 | +980,470 | 36,236,382 | 170,954,360 | +134,717,978 |
| VERA THERAPEUTICS INC | 3,641,157 | 4,059,695 | +418,538 | 105,812,022 | 205,582,955 | +99,770,933 |
| IONIS PHARMACEUTICALS INC | 0 | 0 | 0 | 0 | 95,328,000 | +95,328,000 |
| ALIGNMENT HEALTHCARE INC | 0 | 0 | 0 | 0 | 92,553,470 | +92,553,470 |
| ARROWHEAD PHARMACEUTICALS IN | 993,000 | 1,832,946 | +839,946 | 34,248,570 | 121,689,285 | +87,440,715 |
| NEOGENOMICS INC | 0 | 0 | 0 | 0 | 64,689,576 | +64,689,576 |
| BRIDGEBIO ONCOLOGY THERAPEUT | 0 | 4,885,446 | +4,885,446 | 0 | 61,165,784 | +61,165,784 |
| INSPIRE MED SYS INC | 1,047,694 | 1,505,872 | +458,178 | 77,738,895 | 138,886,575 | +61,147,680 |
| REVOLUTION MEDICINES INC | 3,650,342 | 2,894,613 | -755,729 | 170,470,971 | 230,555,925 | +60,084,954 |
| STOKE THERAPEUTICS INC | 0 | 1,823,500 | +1,823,500 | 0 | 57,877,890 | +57,877,890 |
| LANTHEUS HLDGS INC | 0 | 827,999 | +827,999 | 0 | 55,103,333 | +55,103,333 |
| SAVARA INC | 7,964,000 | 13,569,000 | +5,605,000 | 28,431,480 | 81,821,070 | +53,389,590 |
| STRUCTURE THERAPEUTICS INC | 373,407 | 767,993 | +394,586 | 10,455,396 | 53,413,913 | +42,958,517 |
| LIVANOVA PLC | 0 | 0 | 0 | 0 | 39,725,721 | +39,725,721 |
| BELITE BIO INC | 0 | 233,813 | +233,813 | 0 | 37,400,727 | +37,400,727 |
| ACADIA HEALTHCARE COMPANY IN | 1,189,000 | 4,520,000 | +3,331,000 | 29,439,640 | 64,138,800 | +34,699,160 |
| LEGEND BIOTECH CORP | 2,962,338 | 5,932,000 | +2,969,662 | 96,601,842 | 128,961,680 | +32,359,838 |
| UNITED THERAPEUTICS CORP DEL | 425,993 | 425,993 | 0 | 178,580,526 | 207,565,089 | +28,984,563 |
| LANTHEUS HLDGS INC | 0 | 0 | 0 | 0 | 28,911,419 | +28,911,419 |
| IONIS PHARMACEUTICALS INC | 1,979,669 | 1,979,669 | 0 | 129,509,946 | 156,611,615 | +27,101,669 |
| IMMUNOCORE HLDGS PLC | 0 | 0 | 0 | 0 | 27,081,900 | +27,081,900 |
| BROOKDALE SR LIVING INC | 11,641,642 | 11,637,032 | -4,610 | 98,604,708 | 125,563,575 | +26,958,867 |
| PHARVARIS N V | 2,442,464 | 3,126,042 | +683,578 | 60,939,477 | 86,747,666 | +25,808,189 |
| TANGO THERAPEUTICS INC | 0 | 2,906,946 | +2,906,946 | 0 | 25,755,542 | +25,755,542 |
| NEWAMSTERDAM PHARMA COMPANY | 4,266,693 | 4,164,789 | -101,904 | 121,344,749 | 146,100,798 | +24,756,049 |
| BIOCRYST PHARMACEUTICALS INC | 12,169,000 | 14,341,000 | +2,172,000 | 92,362,710 | 111,859,800 | +19,497,090 |
| COMPASS THERAPEUTICS INC | 0 | 3,606,000 | +3,606,000 | 0 | 19,364,220 | +19,364,220 |
| KYVERNA THERAPEUTICS INC | 0 | 2,000,000 | +2,000,000 | 0 | 18,800,000 | +18,800,000 |
| LARIMAR THERAPEUTICS INC | 30,606,974 | 30,606,974 | 0 | 98,860,526 | 116,612,571 | +17,752,045 |
| CATALYST PHARMACEUTICALS INC | 4,974,767 | 4,911,161 | -63,606 | 98,002,910 | 114,626,498 | +16,623,588 |
| IDEAYA BIOSCIENCES INC | 2,153,043 | 2,153,043 | 0 | 58,584,300 | 74,430,697 | +15,846,397 |
| SPYRE THERAPEUTICS INC | 613,665 | 710,626 | +96,961 | 10,285,025 | 23,280,108 | +12,995,083 |
| VIATRIS INC | 24,099,083 | 20,206,170 | -3,892,913 | 238,580,922 | 251,566,817 | +12,985,895 |
| ARS PHARMACEUTICALS INC | 7,503,812 | 7,503,812 | 0 | 75,413,311 | 87,419,410 | +12,006,099 |
| ADAPTHEALTH CORP | 11,477,730 | 11,477,730 | 0 | 102,725,684 | 114,318,191 | +11,592,507 |
| SIONNA THERAPEUTICS INC | 970,590 | 970,590 | 0 | 28,545,052 | 39,930,073 | +11,385,021 |
| KYMERA THERAPEUTICS INC | 572,258 | 561,170 | -11,088 | 32,389,803 | 43,664,638 | +11,274,835 |
| MEDLINE INC | 0 | 260,000 | +260,000 | 0 | 10,920,000 | +10,920,000 |
| CAREDX INC | 2,191,000 | 2,191,000 | 0 | 31,857,140 | 41,278,440 | +9,421,300 |
| PHREESIA INC | 1,116,752 | 1,999,045 | +882,293 | 26,266,007 | 33,823,841 | +7,557,834 |
| EDGEWISE THERAPEUTICS INC | 765,694 | 765,694 | 0 | 12,419,557 | 19,000,697 | +6,581,140 |
| ENHABIT INC | 4,747,746 | 4,747,746 | 0 | 38,029,445 | 43,774,218 | +5,744,773 |
| VERACYTE INC | 726,000 | 726,000 | 0 | 24,923,580 | 30,564,600 | +5,641,020 |
| BETA BIONICS INC | 1,168,415 | 938,308 | -230,107 | 23,216,406 | 28,590,245 | +5,373,839 |
| BIO RAD LABS INC | 226,070 | 226,070 | 0 | 63,387,767 | 68,496,949 | +5,109,182 |
| CALCIMEDICA INC | 1,300,000 | 1,300,000 | 0 | 3,998,540 | 8,567,000 | +4,568,460 |
| VEEVA SYS INC | 0 | 17,711 | +17,711 | 0 | 3,953,627 | +3,953,627 |
| FOGHORN THERAPEUTICS INC | 3,255,514 | 3,649,211 | +393,697 | 15,919,463 | 19,705,739 | +3,786,276 |
| MODERNA INC(Put) | 1,000,000 | 1,000,000 | 0 | 25,830,000 | 29,490,000 | +3,660,000 |
| QUEST DIAGNOSTICS INC | 0 | 18,392 | +18,392 | 0 | 3,191,564 | +3,191,564 |
| LABCORP HOLDINGS INC | 1,057 | 13,825 | +12,768 | 303,422 | 3,468,416 | +3,164,994 |
| ENVISTA HOLDINGS CORPORATION | 2,294,036 | 2,280,498 | -13,538 | 46,729,513 | 49,509,612 | +2,780,099 |
| PETCO HEALTH & WELLNESS CO I | 0 | 936,309 | +936,309 | 0 | 2,631,028 | +2,631,028 |
| VENTAS INC | 354,000 | 354,000 | 0 | 24,776,460 | 27,392,520 | +2,616,060 |
| THE CIGNA GROUP | 0 | 9,203 | +9,203 | 0 | 2,532,942 | +2,532,942 |
| XENON PHARMACEUTICALS INC | 542,020 | 542,020 | 0 | 21,762,103 | 24,293,336 | +2,531,233 |
| RESMED INC | 0 | 10,104 | +10,104 | 0 | 2,433,750 | +2,433,750 |
| DOXIMITY INC | 0 | 51,942 | +51,942 | 0 | 2,299,992 | +2,299,992 |
| MASIMO CORP | 0 | 16,147 | +16,147 | 0 | 2,100,079 | +2,100,079 |
| CARDINAL HEALTH INC | 0 | 8,985 | +8,985 | 0 | 1,846,418 | +1,846,418 |
| GOODRX HLDGS INC | 0 | 660,133 | +660,133 | 0 | 1,788,960 | +1,788,960 |
| SURGERY PARTNERS INC | 0 | 112,623 | +112,623 | 0 | 1,740,025 | +1,740,025 |
| NEUROCRINE BIOSCIENCES INC | 1,184,345 | 1,184,345 | 0 | 166,258,351 | 167,975,651 | +1,717,300 |
| ADDUS HOMECARE CORP | 0 | 15,871 | +15,871 | 0 | 1,704,387 | +1,704,387 |
| TRANSMEDICS GROUP INC | 12,752 | 25,492 | +12,740 | 1,430,774 | 3,101,102 | +1,670,328 |
| INSULET CORP | 4,480 | 10,616 | +6,136 | 1,383,110 | 3,017,492 | +1,634,382 |
| ENCOMPASS HEALTH CORP | 0 | 15,259 | +15,259 | 0 | 1,619,590 | +1,619,590 |
| DAY ONE BIOPHARMACEUTICALS I | 4,705,413 | 3,723,131 | -982,282 | 33,173,162 | 34,699,581 | +1,526,419 |
| ALIGNMENT HEALTHCARE INC | 102,942 | 164,345 | +61,403 | 1,796,338 | 3,245,814 | +1,449,476 |
| ABBOTT LABS | 0 | 11,449 | +11,449 | 0 | 1,434,445 | +1,434,445 |
| MAXIMUS INC | 0 | 16,606 | +16,606 | 0 | 1,433,430 | +1,433,430 |
| ENOVIS CORPORATION | 69,213 | 127,270 | +58,057 | 2,099,922 | 3,390,473 | +1,290,551 |
| ANNEXON INC | 583,913 | 583,913 | 0 | 1,780,935 | 2,931,243 | +1,150,308 |
| HEALTHEQUITY INC | 7,060 | 16,231 | +9,171 | 669,076 | 1,486,922 | +817,846 |
| ARVINAS INC | 0 | 68,057 | +68,057 | 0 | 807,156 | +807,156 |
| DEXCOM INC | 22,287 | 32,943 | +10,656 | 1,499,692 | 2,186,427 | +686,735 |
| EDWARDS LIFESCIENCES CORP | 6,349 | 13,702 | +7,353 | 493,762 | 1,168,096 | +674,334 |
| SCHRODINGER INC | 0 | 33,987 | +33,987 | 0 | 607,688 | +607,688 |
| CHEMED CORP NEW | 4,664 | 6,215 | +1,551 | 2,088,259 | 2,659,150 | +570,891 |
| NEWAMSTERDAM PHARMA COMPANY | 92,787 | 92,787 | 0 | 1,587,586 | 2,134,101 | +546,515 |
| RXSIGHT INC | 0 | 52,257 | +52,257 | 0 | 544,518 | +544,518 |
| RADNET INC | 39,913 | 49,951 | +10,038 | 3,041,770 | 3,564,004 | +522,234 |
| STRYKER CORPORATION | 1,988 | 3,551 | +1,563 | 734,904 | 1,248,070 | +513,166 |
| ABBVIE INC | 0 | 2,014 | +2,014 | 0 | 460,179 | +460,179 |
| AVANOS MED INC | 122,899 | 167,061 | +44,162 | 1,420,712 | 1,876,095 | +455,383 |
| HARROW INC | 0 | 8,693 | +8,693 | 0 | 425,957 | +425,957 |
| TANDEM DIABETES CARE INC | 12,195 | 26,090 | +13,895 | 148,047 | 573,458 | +425,411 |
| HEALTHCARE SVCS GROUP INC | 0 | 21,259 | +21,259 | 0 | 406,472 | +406,472 |
| AMPHASTAR PHARMACEUTICALS IN | 0 | 14,852 | +14,852 | 0 | 397,737 | +397,737 |
| MIMEDX GROUP INC | 104,870 | 160,419 | +55,549 | 731,993 | 1,086,037 | +354,044 |
| PRESTIGE CONSMR HEALTHCARE I | 64,563 | 69,669 | +5,106 | 4,028,731 | 4,297,881 | +269,150 |
| NATIONAL VISION HLDGS INC | 0 | 10,284 | +10,284 | 0 | 265,533 | +265,533 |
| ALPHATEC HLDGS INC | 65,262 | 57,277 | -7,985 | 948,909 | 1,205,108 | +256,199 |
| BIOMX INC | 0 | 131,270 | +131,270 | 0 | 245,471 | +245,471 |
| THE ONCOLOGY INSTITUTE INC | 3,360,052 | 3,360,052 | 0 | 11,726,581 | 11,961,785 | +235,204 |