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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: $9.59 B
Last 13-F Filed: Q2 2026
Concentration in top 10: 53.16%
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Stock Company % Portfolio Shares Held Market Value Change in Shares % Change Quarter End Price Source
NUVLNUVALENT INC22.22%17,248,450$2,130,183,575No Change$123.513F
BKDBROOKDALE SR LIVING INC (PRN)6.11%306,885,000$585,704,753No Change$1.9113F
PRAXPRAXIS PRECISION MEDICINES I3.36%963,351$322,520,281No Change$334.7913F
VTRSVIATRIS INC3.35%20,206,170$320,873,980No Change$15.8813F
UTHRUNITED THERAPEUTICS CORP DEL2.58%457,000$247,616,310No Change$541.8313F
ARWRARROWHEAD PHARMACEUTICALS IN (PRN)2.51%200,000,000$240,537,600No Change$1.213F
BKDBROOKDALE SR LIVING INC1.95%11,637,032$187,239,845No Change$16.0913F
IONSIONIS PHARMACEUTICALS INC1.64%1,979,669$156,967,955No Change$79.2913F
NAMSNEWAMSTERDAM PHARMA COMPANY1.51%4,264,789$144,533,699No Change$33.8913F
ACHCACADIA HEALTHCARE COMPANY IN1.39%4,520,000$133,475,600No Change$29.5313F
AHCOADAPTHEALTH CORP1.25%11,477,730$119,597,947No Change$10.4213F
LRMRLARIMAR THERAPEUTICS INC1.13%35,606,974$108,601,271No Change$3.0513F
ALHCALIGNMENT HEALTHCARE INC (PRN)1.08%61,000,000$103,829,930No Change$1.713F
XENEXENON PHARMACEUTICALS INC1.02%1,615,696$97,523,411No Change$60.3613F
IONSIONIS PHARMACEUTICALS INC (PRN)0.97%60,000,000$93,104,400No Change$1.5513F
SVRASAVARA INC0.87%13,569,000$83,585,040No Change$6.1613F
SNDXSYNDAX PHARMACEUTICALS INC0.86%3,779,900$82,628,614No Change$21.8613F
PFEPFIZER INC0.76%3,040,000$73,203,200No Change$24.0813F
BIOBIO RAD LABS INC0.69%226,070$66,376,413No Change$293.6113F
SPRYARS PHARMACEUTICALS INC0.63%7,503,812$60,105,534No Change$8.0113F
STOKSTOKE THERAPEUTICS INC0.62%1,823,500$59,664,920No Change$32.7213F
NVSTENVISTA HOLDINGS CORPORATION0.61%2,210,100$58,236,135No Change$26.3513F
IRONDISC MEDICINE INC0.5%657,000$48,052,980No Change$73.1413F
LIVNLIVANOVA PLC (PRN)0.48%34,280,000$46,485,120No Change$1.3613F
BBOTBRIDGEBIO ONCOLOGY THERAPEUT0.39%4,885,446$37,227,099No Change$7.6213F
MNPRMONOPAR THERAPEUTICS INC0.31%323,745$29,975,550No Change$92.5913F
IMCRIMMUNOCORE HLDGS PLC (PRN)0.28%30,000,000$27,104,340No Change$0.913F
BBNXBETA BIONICS INC0.22%1,324,000$20,747,080No Change$15.6713F
FHTXFOGHORN THERAPEUTICS INC0.22%4,394,367$21,444,511No Change$4.8813F
ALNYALNYLAM PHARMACEUTICALS INC0.21%67,935$20,450,473No Change$301.0313F
DRUGBRIGHT MINDS BIOSCIENCES INC0.21%283,000$19,866,600No Change$70.213F
KYTXKYVERNA THERAPEUTICS INC0.19%2,000,000$17,820,000No Change$8.9113F
TOITHE ONCOLOGY INSTITUTE INC0.19%3,360,052$18,245,082No Change$5.4313F
SGPSPYGLASS PHARMA INC0.13%550,000$12,243,000No Change$22.2613F
EMBCEMBECTA CORP0.09%2,534,961$8,263,973No Change$3.2613F
ANNXANNEXON INC0.03%583,913$3,334,143No Change$5.7113F
ALECALECTOR INC0.02%1,055,192$2,120,936No Change$2.0113F
NAMSWNEWAMSTERDAM PHARMA COMPANY0.02%92,787$1,982,858No Change$21.3713F
EWEDWARDS LIFESCIENCES CORP0.01%13,702$1,239,483No Change$90.4613F
HUMHUMANA INC0.0038%917$364,251No Change$397.2213F
TOIIWTHE ONCOLOGY INSTITUTE INC0.00053%1,250,000$51,000No Change$0.0413F
PMVPPMV PHARMACEUTICALS INC0.00012%8,790$11,779No Change$1.3413F
SRZNWSURROZEN INC0.00003%166,666$2,750No Change$0.0213F