DEERFIELD MANAGEMENT COMPANY, L.P.

CIK 0001009258 • 5 13F filings • Aug 14, 2025 – Aug 14, 2026

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Filer information

Filed by: DEERFIELD MANAGEMENT COMPANY, L.P., Chief Financial Officer
Address: 345 Park Avenue South, 12th Floor, New York, NY, 10010
Phone: 212-551-1600
AUM: $7.83B

AUM over time

$9.59B latest

Sector allocation over time

Past 5 quarters

Q4 2025

Q3 2025

Q2 2026

Q2 2025

Q1 2026

HealthcareEnergyOther

Holdings by filing

Portfolio value: $7.83B1 positionsView on SEC.gov

			% of Portfolio
10X GENOMICS INC	CL A COM	$2.1M	0.0%Prev: 0.0%	126,574 SH	Decreased-134,614 SH
ABBOTT LABS	COM	$1.4M	0.0%	11,449 SH	New
ABBVIE INC	COM	$460K	0.0%	2,014 SH	New
ABEONA THERAPEUTICS INC	COM NEW	$211K	0.0%	40,000 SH	New
ACADIA HEALTHCARE COMPANY IN	COM	$64.1M	0.8%Prev: 0.4%	4,520,000 SH	Increased+3,331,000 SH
ADAPTHEALTH CORP	COMMON STOCK	$114.3M	1.5%Prev: 1.6%	11,477,730 SH	Increased
ADDUS HOMECARE CORP	COM	$1.7M	0.0%	15,871 SH	New
ALECTOR INC	COM	$1.6M	0.0%Prev: 0.0%	1,055,192 SH	Decreased
ALIGN TECHNOLOGY INC	COM	$1.7M	0.0%Prev: 0.1%	11,000 SH	Decreased-21,789 SH
ALIGNMENT HEALTHCARE INC	COM	$3.2M	0.0%Prev: 0.0%	164,345 SH	Increased+61,403 SH
ALIGNMENT HEALTHCARE INC	NOTE 4.250%11/1	$92.6M	1.2%	61,000,000 PRN	New
ALNYLAM PHARMACEUTICALS INC	COM	$27.0M	0.3%Prev: 0.5%	67,935 SH	Decreased
ALPHATEC HLDGS INC	COM NEW	$1.2M	0.0%Prev: 0.0%	57,277 SH	Increased-7,985 SH
AMPHASTAR PHARMACEUTICALS IN	COM	$398K	0.0%	14,852 SH	New
ANNEXON INC	COM	$2.9M	0.0%Prev: 0.0%	583,913 SH	Increased
ARROWHEAD PHARMACEUTICALS IN	COM	$121.7M	1.6%Prev: 0.5%	1,832,946 SH	Increased+839,946 SH
ARS PHARMACEUTICALS INC	COM	$87.4M	1.1%Prev: 1.2%	7,503,812 SH	Increased
ARVINAS INC	COM	$807K	0.0%	68,057 SH	New
ATRICURE INC	COM	$2.1M	0.0%Prev: 0.0%	52,076 SH	Decreased-35,493 SH
AVANOS MED INC	COM	$1.9M	0.0%Prev: 0.0%	167,061 SH	Increased+44,162 SH
AZENTA INC	COM	$859K	0.0%Prev: 0.0%	25,835 SH	Decreased-15,169 SH
BELITE BIO INC	SPONSORED ADS	$37.4M	0.5%	233,813 SH	New
BELLRING BRANDS INC	COMMON STOCK	$321K	0.0%Prev: 0.0%	11,996 SH	Decreased-22,236 SH
BETA BIONICS INC	COM	$28.6M	0.4%Prev: 0.4%	938,308 SH	Increased-230,107 SH
BIO RAD LABS INC	CL A	$68.5M	0.9%Prev: 1.0%	226,070 SH	Increased
BIOCRYST PHARMACEUTICALS INC	COM	$111.9M	1.4%Prev: 1.4%	14,341,000 SH	Increased+2,172,000 SH
BIOLIFE SOLUTIONS INC	COM NEW	$2.9M	0.0%Prev: 0.0%	120,211 SH	Increased+9,016 SH
BIOMX INC	COM NEW	$245K	0.0%Prev: 0.0%	131,270 SH	Decreased-2,362,838 SH
BOSTON SCIENTIFIC CORP	COM	$2.4M	0.0%Prev: 0.0%	24,941 SH	Decreased-6,371 SH
BRIDGEBIO ONCOLOGY THERAPEUT	COM NEW	$61.2M	0.8%	4,885,446 SH	New
BROOKDALE SR LIVING INC	COM	$125.6M	1.6%Prev: 1.5%	11,637,032 SH	Increased-4,610 SH
BROOKDALE SR LIVING INC	NOTE 3.500%10/1	$427.5M	5.5%	306,885,000 PRN	New
BUTTERFLY NETWORK INC	*W EXP 02/12/202	$13K	0.0%Prev: 0.0%	733,333 SH	Decreased
CALCIMEDICA INC	COM NEW	$8.6M	0.1%Prev: 0.1%	1,300,000 SH	Increased
CARDINAL HEALTH INC	COM	$1.8M	0.0%	8,985 SH	New
CAREDX INC	COM	$41.3M	0.5%Prev: 0.5%	2,191,000 SH	Increased
CATALYST PHARMACEUTICALS INC	COM	$114.6M	1.5%Prev: 1.5%	4,911,161 SH	Increased-63,606 SH
CELCUITY INC	COM	$171.0M	2.2%Prev: 0.6%	1,714,000 SH	Increased+980,470 SH
CENTENE CORP DEL	COM	$265.3M	3.4%Prev: 4.9%	6,447,998 SH	Decreased-2,598,002 SH
CERTARA INC	COM	$68.8M	0.9%Prev: 1.3%	7,808,605 SH	Decreased+1,069,068 SH
CHEMED CORP NEW	COM	$2.7M	0.0%Prev: 0.0%	6,215 SH	Increased+1,551 SH
COGENT BIOSCIENCES INC	COM	$321.2M	4.1%Prev: 2.0%	9,043,903 SH	Increased-9,215 SH
COMPASS THERAPEUTICS INC	COM	$19.4M	0.2%	3,606,000 SH	New
CONMED CORP	COM	$2.1M	0.0%Prev: 0.5%	52,555 SH	Decreased-707,641 SH
COOPER COS INC	COM	$638K	0.0%Prev: 0.0%	7,786 SH	Decreased-35,324 SH
CORMEDIX INC	COM	$12.9M	0.2%Prev: 0.6%	1,107,944 SH	Decreased-2,215,889 SH
CORVEL CORP	COM	$1.9M	0.0%Prev: 0.0%	27,629 SH	Decreased-2,587 SH
CULLINAN THERAPEUTICS INC	COM	$4.0M	0.1%Prev: 0.3%	386,169 SH	Decreased-2,540,844 SH
DAVITA INC	COM	$2.4M	0.0%Prev: 0.0%	20,909 SH	Decreased+2,342 SH
DAY ONE BIOPHARMACEUTICALS I	COM	$34.7M	0.4%Prev: 0.5%	3,723,131 SH	Increased-982,282 SH
DEXCOM INC	COM	$2.2M	0.0%Prev: 0.0%	32,943 SH	Increased+10,656 SH
DISC MEDICINE INC	COM	$40.6M	0.5%Prev: 0.9%	511,163 SH	Decreased-408,240 SH
DOXIMITY INC	CL A	$2.3M	0.0%	51,942 SH	New
EDGEWISE THERAPEUTICS INC	COM	$19.0M	0.2%Prev: 0.2%	765,694 SH	Increased
EDWARDS LIFESCIENCES CORP	COM	$1.2M	0.0%Prev: 0.0%	13,702 SH	Increased+7,353 SH
EMBECTA CORP	COMMON STOCK	$32.7M	0.4%Prev: 0.6%	2,752,031 SH	Decreased+131,610 SH
ENCOMPASS HEALTH CORP	COM	$1.6M	0.0%	15,259 SH	New
ENHABIT INC	COM	$43.8M	0.6%Prev: 0.6%	4,747,746 SH	Increased
ENOVIS CORPORATION	COM	$3.4M	0.0%Prev: 0.0%	127,270 SH	Increased+58,057 SH
ENVISTA HOLDINGS CORPORATION	COM	$49.5M	0.6%Prev: 0.7%	2,280,498 SH	Increased-13,538 SH
FOGHORN THERAPEUTICS INC	COM	$19.7M	0.3%Prev: 0.2%	3,649,211 SH	Increased+393,697 SH
GOODRX HLDGS INC	COM CL A	$1.8M	0.0%	660,133 SH	New
HARROW INC	COM	$426K	0.0%	8,693 SH	New
HEALTHCARE SVCS GROUP INC	COM	$406K	0.0%	21,259 SH	New
HEALTHEQUITY INC	COM	$1.5M	0.0%Prev: 0.0%	16,231 SH	Increased+9,171 SH
HUMANA INC	COM	$235K	0.0%Prev: 0.0%	917 SH	Decreased
IDEAYA BIOSCIENCES INC	COM	$74.4M	1.0%Prev: 0.9%	2,153,043 SH	Increased
IMMUNOCORE HLDGS PLC	NOTE 2.500% 2/0	$27.1M	0.3%	30,000,000 PRN	New
INDIVIOR PLC	ORD	$121.7M	1.6%Prev: 2.6%	3,393,063 SH	Decreased-3,593,748 SH
INSPIRE MED SYS INC	COM	$138.9M	1.8%Prev: 1.2%	1,505,872 SH	Increased+458,178 SH
INSULET CORP	COM	$3.0M	0.0%Prev: 0.0%	10,616 SH	Increased+6,136 SH
INTEGER HLDGS CORP	COM	$1.0M	0.0%Prev: 0.0%	13,326 SH	Decreased+798 SH
INTEGRA LIFESCIENCES HLDGS C	COM NEW	$487K	0.0%Prev: 0.2%	39,209 SH	Decreased-755,656 SH
INTUITIVE SURGICAL INC	COM NEW	$274K	0.0%Prev: 0.0%	483 SH	Decreased-4,955 SH
IONIS PHARMACEUTICALS INC	COM	$156.6M	2.0%Prev: 2.0%	1,979,669 SH	Increased
IONIS PHARMACEUTICALS INC	NOTE 1.750% 6/1	$95.3M	1.2%	60,000,000 PRN	New
IRHYTHM TECHNOLOGIES INC	COM	$2.1M	0.0%Prev: 0.0%	12,099 SH	Decreased-5,163 SH
KENVUE INC	COM	$1.1M	0.0%Prev: 0.0%	65,344 SH	Decreased-128,509 SH
KYMERA THERAPEUTICS INC	COM	$43.7M	0.6%Prev: 0.5%	561,170 SH	Increased-11,088 SH
KYVERNA THERAPEUTICS INC	COM	$18.8M	0.2%	2,000,000 SH	New
LABCORP HOLDINGS INC	COM SHS	$3.5M	0.0%Prev: 0.0%	13,825 SH	Increased+12,768 SH
LANTHEUS HLDGS INC	COM	$55.1M	0.7%	827,999 SH	New
LANTHEUS HLDGS INC	NOTE 2.625%12/1	$28.9M	0.4%	25,255,000 PRN	New
LARIMAR THERAPEUTICS INC	COM	$116.6M	1.5%Prev: 1.5%	30,606,974 SH	Increased
LEGEND BIOTECH CORP	SPONSORED ADS	$129.0M	1.6%Prev: 1.5%	5,932,000 SH	Increased+2,969,662 SH
LEMAITRE VASCULAR INC	COM	$2.1M	0.0%Prev: 0.0%	25,815 SH	Decreased-4,144 SH
LIVANOVA PLC	NOTE 2.500% 3/1	$39.7M	0.5%	34,280,000 PRN	New
MASIMO CORP	COM	$2.1M	0.0%	16,147 SH	New
MAXIMUS INC	COM	$1.4M	0.0%	16,606 SH	New
MEDLINE INC	COM CL A	$10.9M	0.1%	260,000 SH	New
MERIT MED SYS INC	COM	$1.7M	0.0%Prev: 0.1%	18,798 SH	Decreased-23,048 SH
MIMEDX GROUP INC	COM	$1.1M	0.0%Prev: 0.0%	160,419 SH	Increased+55,549 SH
MIRUM PHARMACEUTICALS INC	NOTE 4.000% 5/0	$180.7M	2.3%	70,000,000 PRN	New
MODERNA INC	COM	$29.5M	0.4%Prev: 0.4%	1,000,000 SH	Increased
MONOPAR THERAPEUTICS INC	COM NEW	$11.1M	0.1%Prev: 0.2%	170,558 SH	Decreased+10,793 SH
MYRIAD GENETICS INC	COM	$3K	0.0%Prev: 0.0%	505 SH	Decreased
NATIONAL HEALTHCARE CORP	COM	$1.7M	0.0%Prev: 0.0%	12,085 SH	Decreased-2,499 SH
NATIONAL VISION HLDGS INC	COM	$266K	0.0%	10,284 SH	New
NEOGENOMICS INC	NOTE 0.250% 1/1	$64.7M	0.8%	72,689,000 PRN	New
NEUROCRINE BIOSCIENCES INC	COM	$168.0M	2.1%Prev: 2.5%	1,184,345 SH	Increased
NEWAMSTERDAM PHARMA COMPANY	*W EXP 99/99/999	$2.1M	0.0%Prev: 0.0%	92,787 SH	Increased
NEWAMSTERDAM PHARMA COMPANY	ORDINARY SHARES	$146.1M	1.9%Prev: 1.9%	4,164,789 SH	Increased-101,904 SH
NUVALENT INC	COM	$1.74B	22.2%Prev: 23.8%	17,248,450 SH	Increased-742,574 SH
NUVATION BIO INC	*W EXP 02/10/202	$55K	0.0%Prev: 0.0%	166,666 SH	Increased
OMADA HEALTH INC	COM	$8.7M	0.1%Prev: 0.2%	553,107 SH	Decreased
ORTHOPEDIATRICS CORP	COM	$2.6M	0.0%Prev: 0.1%	144,220 SH	Decreased-49,889 SH
PETCO HEALTH & WELLNESS CO I	COM	$2.6M	0.0%	936,309 SH	New
PHARVARIS N V	COM	$86.7M	1.1%Prev: 0.9%	3,126,042 SH	Increased+683,578 SH
PHREESIA INC	COM	$33.8M	0.4%Prev: 0.4%	1,999,045 SH	Increased+882,293 SH
PMV PHARMACEUTICALS INC	COM	$11K	0.0%Prev: 0.0%	8,790 SH	Decreased
PRAXIS PRECISION MEDICINES I	COM NEW	$266.3M	3.4%Prev: 0.7%	903,351 SH	Increased+62,500 SH
PRESTIGE CONSMR HEALTHCARE I	COM	$4.3M	0.1%Prev: 0.1%	69,669 SH	Increased+5,106 SH
QUANTUM SI INC	*W EXP 06/10/202	$67K	0.0%Prev: 0.0%	333,333 SH	Decreased
QUEST DIAGNOSTICS INC	COM	$3.2M	0.0%	18,392 SH	New
RADNET INC	COM	$3.6M	0.0%Prev: 0.0%	49,951 SH	Increased+10,038 SH
REPLIGEN CORP	COM	$360K	0.0%Prev: 0.0%	2,199 SH	Decreased-10,710 SH
RESMED INC	COM	$2.4M	0.0%	10,104 SH	New
REVOLUTION MEDICINES INC	COM	$230.6M	2.9%Prev: 2.6%	2,894,613 SH	Increased-755,729 SH
REVVITY INC	COM	$999K	0.0%Prev: 0.0%	10,323 SH	Decreased-23,218 SH
RXSIGHT INC	COM	$545K	0.0%	52,257 SH	New
SAVARA INC	COM	$81.8M	1.0%Prev: 0.4%	13,569,000 SH	Increased+5,605,000 SH
SCHRODINGER INC	COM	$608K	0.0%	33,987 SH	New
SIONNA THERAPEUTICS INC	COM	$39.9M	0.5%Prev: 0.4%	970,590 SH	Increased
SPYRE THERAPEUTICS INC	COM NEW	$23.3M	0.3%Prev: 0.2%	710,626 SH	Increased+96,961 SH
STAAR SURGICAL CO	COM PAR $0.01	$1.2M	0.0%Prev: 0.0%	51,894 SH	Decreased-45,095 SH
STERIS PLC	SHS USD	$343K	0.0%Prev: 0.0%	1,352 SH	Decreased-1,226 SH
STOKE THERAPEUTICS INC	COM	$57.9M	0.7%	1,823,500 SH	New
STRUCTURE THERAPEUTICS INC	SPONSORED ADS	$53.4M	0.7%Prev: 0.2%	767,993 SH	Increased+394,586 SH
STRYKER CORPORATION	COM	$1.2M	0.0%Prev: 0.0%	3,551 SH	Increased+1,563 SH
SURGERY PARTNERS INC	COM	$1.7M	0.0%	112,623 SH	New
SURROZEN INC	*W EXP 08/01/203	$3K	0.0%Prev: 0.0%	166,666 SH	Increased
TANDEM DIABETES CARE INC	COM NEW	$573K	0.0%Prev: 0.0%	26,090 SH	Increased+13,895 SH
TANGO THERAPEUTICS INC	COM	$25.8M	0.3%	2,906,946 SH	New
TAYSHA GENE THERAPIES INC	COM SHS	$15.0M	0.2%Prev: 0.3%	2,722,165 SH	Decreased-2,663,835 SH
THE CIGNA GROUP	COM	$2.5M	0.0%	9,203 SH	New
THE ONCOLOGY INSTITUTE INC	*W EXP 99/99/999	$151K	0.0%Prev: 0.0%	1,250,000 SH	Increased
THE ONCOLOGY INSTITUTE INC	COM	$12.0M	0.2%Prev: 0.2%	3,360,052 SH	Increased
TRANSMEDICS GROUP INC	COM	$3.1M	0.0%Prev: 0.0%	25,492 SH	Increased+12,740 SH
TRUPANION INC	COM	$2.5M	0.0%Prev: 0.0%	66,438 SH	Increased+9,393 SH
UFP TECHNOLOGIES INC	COM	$1.1M	0.0%Prev: 0.1%	5,098 SH	Decreased-13,562 SH
UNITED THERAPEUTICS CORP DEL	COM	$207.6M	2.7%Prev: 2.7%	425,993 SH	Increased
VAREX IMAGING CORP	COM	$1.5M	0.0%Prev: 0.1%	131,745 SH	Decreased-153,462 SH
VEEVA SYS INC	CL A COM	$4.0M	0.1%	17,711 SH	New
VENTAS INC	COM	$27.4M	0.3%Prev: 0.4%	354,000 SH	Increased
VERA THERAPEUTICS INC	CL A	$205.6M	2.6%Prev: 1.6%	4,059,695 SH	Increased+418,538 SH
VERACYTE INC	COM	$30.6M	0.4%Prev: 0.4%	726,000 SH	Increased
VIATRIS INC	COM	$251.6M	3.2%Prev: 3.6%	20,206,170 SH	Increased-3,892,913 SH
XENON PHARMACEUTICALS INC	COM	$24.3M	0.3%Prev: 0.3%	542,020 SH	Increased
XERIS BIOPHARMA HOLDINGS INC	COM	$410K	0.0%Prev: 0.0%	52,230 SH	Decreased-68,670 SH
ZOETIS INC	CL A	$717K	0.0%Prev: 0.0%	5,698 SH	Decreased-2,856 SH

Sold (vs prior filing)

ADAPTIVE BIOTECHNOLOGIES COR — $903K
BAXTER INTL INC — $973K
BIO-TECHNE CORP — $1.2M
BRIDGEBIO ONCOLOGY THERAPEUT — $56.6M
BRISTOL-MYERS SQUIBB CO — $105.4M
COMMUNITY HEALTH SYS INC NEW — $105K
DANAHER CORPORATION — $1.3M
DENTSPLY SIRONA INC — $383K
DOCGO INC — $6.3M
ELUTIA INC — $1.2M
EMERGENT BIOSOLUTIONS INC — $17K
GE HEALTHCARE TECHNOLOGIES I — $1.6M
GLOBUS MED INC — $636K
HAEMONETICS CORP MASS — $3.4M
HEARTFLOW INC — $3.4M
HENRY SCHEIN INC — $278K
IMMUNOCORE HLDGS PLC — $27.0M
INSMED INC — $67.8M
IONIS PHARMACEUTICALS INC — $82.7M
JADE BIOSCIENCES INC — $4.6M
… and 21 more

All filings

Open a filing on Jive Data

Filing Date	Quarter	Form	Accession	Portfolio	Filing
Feb 17, 2026	Q4 2025	13F-HR	0001213900-26-017265	$7.83B	View
Nov 14, 2025	Q3 2025	13F-HR	0001213900-25-110851	$6.55B	View
Aug 14, 2026	Q2 2026