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  • DEERFIELD MANAGEMENT COMPANY, L.P. (Data extracted from 13F, 13D, 13G and Form 4)

DEERFIELD MANAGEMENT COMPANY, L.P.

AUM: $16.12 B
13-F Portfolio Value: $6.55 B
Last 13-F Filed: Q3 2025
Concentration in top 10: 51.69%
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Stock Company % Portfolio Shares Held Market Value Change in Shares % Change Quarter End Price Source
MIRMMIRUM PHARMACEUTICALS INC (PRN)2.88%70,000,000$168,190,750No Change$2.413F
LEGNLEGEND BIOTECH CORP1.65%2,962,338$96,601,842No Change$32.6113F
BIOBIO RAD LABS INC1.08%226,070$63,387,767No Change$280.3913F
IRONDISC MEDICINE INC1.04%919,403$60,754,150No Change$66.0813F
ZBIOZENAS BIOPHARMA INC0.59%1,562,942$34,697,312No Change$22.213F
SVRASAVARA INC0.49%7,964,000$28,431,480No Change$3.5713F
SIONSIONNA THERAPEUTICS INC0.49%970,590$28,545,052No Change$29.4113F
IMCRIMMUNOCORE HLDGS PLC (PRN)0.46%30,000,000$27,040,830No Change$0.913F
LNTHLANTHEUS HLDGS INC (PRN)0.45%25,255,000$26,532,954No Change$1.0513F
VTRVENTAS INC0.42%354,000$24,776,460No Change$69.9913F
BBNXBETA BIONICS INC0.40%1,168,415$23,216,406No Change$19.8713F
XENEXENON PHARMACEUTICALS INC0.37%542,020$21,762,103No Change$40.1513F
TSHATAYSHA GENE THERAPIES INC0.30%5,386,000$17,612,220No Change$3.2713F
FHTXFOGHORN THERAPEUTICS INC0.27%3,255,514$15,919,463No Change$4.8913F
OMDAOMADA HEALTH INC0.21%553,107$12,229,196No Change$22.1113F
TOITHE ONCOLOGY INSTITUTE INC0.20%3,360,052$11,726,581No Change$3.4913F
IARTINTEGRA LIFESCIENCES HLDGS C0.19%794,865$11,390,415No Change$14.3313F
SYRESPYRE THERAPEUTICS INC0.18%613,665$10,285,025No Change$16.7613F
GPCRSTRUCTURE THERAPEUTICS INC0.18%373,407$10,455,396No Change$2813F
JBIOJADE BIOSCIENCES INC0.08%531,163$4,583,937No Change$8.6313F
CALCCALCIMEDICA INC0.07%1,300,000$3,998,540No Change$3.0813F
ALECALECTOR INC0.05%1,055,192$3,123,368No Change$2.9613F
ANNXANNEXON INC0.03%583,913$1,780,935No Change$3.0513F
NAMSWNEWAMSTERDAM PHARMA COMPANY0.03%92,787$1,587,586No Change$17.1113F
PHGEBIOMX INC0.02%2,494,108$1,309,407No Change$0.5313F
TWSTTWIST BIOSCIENCE CORP0.01%23,827$670,492No Change$28.1413F
HUMHUMANA INC0.00408%917$238,576No Change$260.1713F
OGNORGANON & CO0.00299%16,388$175,024No Change$10.6813F
TOIIWTHE ONCOLOGY INSTITUTE INC0.00256%1,250,000$150,000No Change$0.1213F
QSIAWQUANTUM SI INC0.00154%333,333$90,000No Change$0.2713F
NUVBWSNUVATION BIO INC0.00058%166,666$33,683No Change$0.213F
BFLYWSBUTTERFLY NETWORK INC0.00057%733,333$33,440No Change$0.0513F
EBSEMERGENT BIOSOLUTIONS INC0.00028%1,872$16,511No Change$8.8213F
PMVPPMV PHARMACEUTICALS INC0.00021%8,790$12,306No Change$1.413F
MYGNMYRIAD GENETICS INC0.00006%505$3,651No Change$7.2313F
SRZNWSURROZEN INC0.00005%166,666$2,967No Change$0.0213F