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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
NUVLNuvalent, Inc.14.60%8,949,225$854,203,526-9,041,799-50.26%Form 4
CNCCENTENE CORP DEL5.52%9,046,000$322,761,2805,860,630183.99%$35.6813F
MRUSMERUS N V4.90%3,046,916$286,867,141-337,712-9.98%$94.1513F
VTRSVIATRIS INC4.08%24,099,083$238,580,92275,1760.31%$9.913F
UTHRUNITED THERAPEUTICS CORP DEL3.05%425,993$178,580,526-114,633-21.2%$419.2113F
RVMDREVOLUTION MEDICINES INC2.91%3,650,342$170,470,971266,2707.87%$46.713F
MIRMMIRUM PHARMACEUTICALS INC (PRN)2.88%70,000,000$168,190,750No Change$2.413F
INDVINDIVIOR PLC2.88%6,986,811$168,452,013-3,580,349-33.88%$24.1113F
NBIXNEUROCRINE BIOSCIENCES INC2.84%1,184,345$166,258,35116,5431.42%$140.3813F
COGTCOGENT BIOSCIENCES INC2.22%9,053,118$130,002,7746,412,903242.89%$14.3613F
IONSIONIS PHARMACEUTICALS INC2.21%1,979,669$129,509,9461,979,669New$65.4213F
NAMSNEWAMSTERDAM PHARMA COMPANY2.07%4,266,693$121,344,749-849,260-16.6%$28.4413F
VERAVERA THERAPEUTICS INC1.81%3,641,157$105,812,022293,0408.75%$29.0613F
BMYBRISTOL-MYERS SQUIBB CO1.80%2,337,771$105,433,4722,337,771New$45.113F
AHCOADAPTHEALTH CORP1.76%11,477,730$102,725,6841,572,83515.88%$8.9513F
BKDBROOKDALE SR LIVING INC1.69%11,641,642$98,604,708-3,720,622-24.22%$8.4713F
LRMRLARIMAR THERAPEUTICS INC1.69%30,606,974$98,860,5269,375,00044.16%$3.2313F
CPRXCATALYST PHARMACEUTICALS INC1.68%4,974,767$98,002,9102,095,29172.77%$19.713F
LEGNLEGEND BIOTECH CORP1.65%2,962,338$96,601,842No Change$32.6113F
BCRXBIOCRYST PHARMACEUTICALS INC1.58%12,169,000$92,362,7107,477,000159.36%$7.5913F
TNDMTANDEM DIABETES CARE INC (PRN)1.49%100,000,000$87,142,70060,000,000150%$0.8713F
MRKMERCK & CO INC1.48%1,030,000$86,447,900172,27620.09%$83.9313F
PFEPFIZER INC1.44%3,303,790$84,180,569-1,002,474-23.28%$25.4813F
CERTCERTARA INC1.41%6,739,537$82,357,1422,813,43871.66%$12.2213F
IONSIONIS PHARMACEUTICALS INC (PRN)1.41%60,000,000$82,657,92060,000,000New$1.3813F
INSPINSPIRE MED SYS INC1.33%1,047,694$77,738,895907,694648.35%$74.213F
SPRYARS PHARMACEUTICALS INC1.29%7,503,812$75,413,311-2,220,696-22.84%$10.0513F
INSMINSMED INC1.16%471,000$67,828,710-229,700-32.78%$144.0113F
BIOBIO RAD LABS INC1.08%226,070$63,387,767No Change$280.3913F
NEONEOGENOMICS INC (PRN)1.08%72,689,000$62,922,57972,689,000New$0.8713F
IRONDISC MEDICINE INC1.04%919,403$60,754,150No Change$66.0813F
PHVSPHARVARIS N V1.04%2,442,464$60,939,477425,00021.07%$24.9513F
IDYAIDEAYA BIOSCIENCES INC1.00%2,153,043$58,584,300-1,762,268-45.01%$27.2113F
BBOTBRIDGEBIO ONCOLOGY THERAPEUT0.97%4,885,446$56,573,4654,885,446New$11.5813F
NVSTENVISTA HOLDINGS CORPORATION0.80%2,294,036$46,729,51378,1913.53%$20.3713F
PRAXPRAXIS PRECISION MEDICINES I0.76%840,851$44,565,103153,92022.41%$5313F
CRMDCORMEDIX INC0.66%3,323,833$38,656,1783,323,833New$11.6313F
EHABENHABIT INC0.65%4,747,746$38,029,445-32,118-0.67%$8.0113F
EMBCEMBECTA CORP0.63%2,620,421$36,974,140-129,291-4.7%$14.1113F
LIVNLIVANOVA PLC (PRN)0.63%34,280,000$36,861,4219,280,00037.12%$1.0813F
CELCCELCUITY INC0.62%733,530$36,236,382733,530New$49.413F
CNMDCONMED CORP0.61%760,196$35,752,01859,9258.56%$47.0313F
ARWRARROWHEAD PHARMACEUTICALS IN0.59%993,000$34,248,570993,000New$34.4913F
NEONEOGENOMICS INC0.59%4,447,331$34,333,3952,299,331107.05%$7.7213F
ZBIOZENAS BIOPHARMA INC0.59%1,562,942$34,697,312No Change$22.213F
DAWNDAY ONE BIOPHARMACEUTICALS I0.57%4,705,413$33,173,162982,28226.38%$7.0513F
KYMRKYMERA THERAPEUTICS INC0.55%572,258$32,389,803-80,742-12.36%$56.613F
CDNACAREDX INC0.54%2,191,000$31,857,1402,191,000New$14.5413F
ALNYALNYLAM PHARMACEUTICALS INC0.53%67,935$30,978,360-77,065-53.15%$45613F
ACHCACADIA HEALTHCARE COMPANY IN0.50%1,189,000$29,439,6401,189,000New$24.7613F
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
PHRPHREESIA INC0.45%1,116,752$26,266,007102,17510.07%$23.5213F
MRNAMODERNA INC (Put)0.44%1,000,000$25,830,0001,000,000New$25.8313F
VCYTVERACYTE INC0.43%726,000$24,923,580101,00016.16%$34.3313F
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
CGEMCULLINAN THERAPEUTICS INC0.30%2,927,013$17,357,187-928,539-24.08%$5.9313F
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
MNPRMONOPAR THERAPEUTICS INC0.22%159,765$13,048,008159,765New$81.6713F
EWTXEDGEWISE THERAPEUTICS INC0.21%765,694$12,419,557-1,301,626-62.96%$16.2213F
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
DCGODOCGO INC0.11%4,622,708$6,286,883-318,857-6.45%$1.3613F
SISHOULDER INNOVATIONS INC0.10%482,572$6,056,279482,572New$12.5513F
JBIOJADE BIOSCIENCES INC0.08%531,163$4,583,937No Change$8.6313F
ALGNALIGN TECHNOLOGY INC0.07%32,789$4,105,83930,8441585.81%$125.2213F
CALCCALCIMEDICA INC0.07%1,300,000$3,998,540No Change$3.0813F
PBHPRESTIGE CONSMR HEALTHCARE I0.07%64,563$4,028,73164,563New$62.413F
HAEHAEMONETICS CORP MASS0.06%69,089$3,367,39865,5601857.75%$48.7413F
HTFLHEARTFLOW INC0.06%100,000$3,366,000100,000New$33.6613F
MMSIMERIT MED SYS INC0.06%41,846$3,482,84341,846New$83.2313F
KIDSORTHOPEDIATRICS CORP0.06%194,109$3,596,840178,6231153.45%$18.5313F
UFPTUFP TECHNOLOGIES INC0.06%18,660$3,724,53617,1431130.06%$199.613F
VREXVAREX IMAGING CORP0.06%285,207$3,536,567285,207New$12.413F
ALECALECTOR INC0.05%1,055,192$3,123,368No Change$2.9613F
ATRCATRICURE INC0.05%87,569$3,086,80776,431686.22%$35.2513F
BLFSBIOLIFE SOLUTIONS INC0.05%111,195$2,836,58497,525713.42%$25.5113F
BSXBOSTON SCIENTIFIC CORP0.05%31,312$3,056,99131,312New$97.6313F
COOCOOPER COS INC0.05%43,110$2,955,62236,782581.26%$68.5613F
IRTCIRHYTHM TECHNOLOGIES INC0.05%17,262$2,968,89117,262New$171.9913F
KVUEKENVUE INC0.05%193,853$3,146,234193,853New$16.2313F
RVTYREVVITY INC0.05%33,541$2,939,86933,541New$87.6513F
RDNTRADNET INC0.05%39,913$3,041,77038,4072550.27%$76.2113F
TXG10X GENOMICS INC0.05%261,188$3,053,288249,8872211.19%$11.6913F
CHECHEMED CORP NEW0.04%4,664$2,088,2594,664New$447.7413F
ENOVENOVIS CORPORATION0.04%69,213$2,099,92258,946574.13%$30.3413F
CRVLCORVEL CORP0.04%30,216$2,339,32328,2231416.11%$77.4213F
DVADAVITA INC0.04%18,567$2,466,99716,466783.72%$132.8713F
LMATLEMAITRE VASCULAR INC0.04%29,959$2,621,71225,790618.61%$87.5113F
STAASTAAR SURGICAL CO0.04%96,989$2,606,09496,989New$26.8713F
TRUPTRUPANION INC0.04%57,045$2,468,90857,045New$43.2813F
WATWATERS CORP0.04%7,885$2,364,0027,885New$299.8113F
ISRGINTUITIVE SURGICAL INC0.04%5,438$2,432,0375,438New$447.2313F
ALHCALIGNMENT HEALTHCARE INC0.03%102,942$1,796,338-239,616-69.95%$17.4513F
ANNXANNEXON INC0.03%583,913$1,780,935No Change$3.0513F
DXCMDEXCOM INC0.03%22,287$1,499,69222,287New$67.2913F
GEHCGE HEALTHCARE TECHNOLOGIES I0.03%21,924$1,646,49221,924New$75.113F
NHCNATIONAL HEALTHCARE CORP0.03%14,584$1,772,10211,658398.43%$121.5113F
PENPENUMBRA INC0.03%6,411$1,624,0356,411New$253.3213F
RGENREPLIGEN CORP0.03%12,909$1,725,54611,281692.94%$133.6713F
TFXTELEFLEX INCORPORATED0.03%13,572$1,660,67011,767651.91%$122.3613F
NAMSWNEWAMSTERDAM PHARMA COMPANY0.03%92,787$1,587,586No Change$17.1113F
ADPTADAPTIVE BIOTECHNOLOGIES COR0.02%60,328$902,50760,328New$14.9613F
ATECALPHATEC HLDGS INC0.02%65,262$948,90948,179282.03%$14.5413F
AVNSAVANOS MED INC0.02%122,899$1,420,712122,899New$11.5613F
ELUTELUTIA INC0.02%1,371,603$1,221,0011,371,603New$0.8913F
BAXBAXTER INTL INC0.02%42,744$973,281-1,880,356-97.78%$22.7713F
BRBRBELLRING BRANDS INC0.02%34,232$1,244,33334,232New$36.3513F
TECHBIO-TECHNE CORP0.02%20,979$1,167,06220,979New$55.6313F
PHGEBIOMX INC0.02%2,494,108$1,309,407No Change$0.5313F
AZTAAZENTA INC0.02%41,004$1,177,63541,004New$28.7213F
DHRDANAHER CORPORATION0.02%6,421$1,273,0276,2533722.02%$198.2613F
PODDINSULET CORP0.02%4,480$1,383,1104,480New$308.7313F
ITGRINTEGER HLDGS CORP0.02%12,528$1,294,51812,528New$103.3313F
MOHMOLINA HEALTHCARE INC0.02%5,047$965,7945,047New$191.3613F
TMDXTRANSMEDICS GROUP INC0.02%12,752$1,430,77412,752New$112.213F
XERSXERIS BIOPHARMA HOLDINGS INC0.02%120,900$984,12698,326435.57%$8.1413F
ZTSZOETIS INC0.02%8,554$1,251,6217,244552.98%$146.3213F
GMEDGLOBUS MED INC0.01%11,106$636,04111,106New$57.2713F
HQYHEALTHEQUITY INC0.01%7,060$669,0767,060New$94.7713F
MDXGMIMEDX GROUP INC0.01%104,870$731,99365,519166.5%$6.9813F
SYKSTRYKER CORPORATION0.01%1,988$734,9041,988New$369.6713F
TWSTTWIST BIOSCIENCE CORP0.01%23,827$670,492No Change$28.1413F
STESTERIS PLC0.01%2,578$637,9002,578New$247.4413F
EWEDWARDS LIFESCIENCES CORP0.00844%6,349$493,7626,349New$77.7713F
TMOTHERMO FISHER SCIENTIFIC INC0.00783%944$457,859283.06%$485.0213F
SHCSOTERA HEALTH CO0.00683%25,384$399,290-19,858-43.89%$15.7313F
XRAYDENTSPLY SIRONA INC0.00655%30,183$383,02230,183New$12.6913F
LHLABCORP HOLDINGS INC0.00519%1,057$303,4221,057New$287.0613F
SCISERVICE CORP INTL0.00517%3,635$302,5053,635New$83.2213F
HSICHENRY SCHEIN INC0.00476%4,191$278,1574,191New$66.3713F
SUPNSUPERNUS PHARMACEUTICALS INC0.00436%5,331$254,7685,331New$47.7913F
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
TNDMTANDEM DIABETES CARE INC0.00253%12,195$148,04712,195New$12.1413F
CYHCOMMUNITY HEALTH SYS INC NEW0.00180%32,720$105,031-22,983-41.26%$3.2113F
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
ALNYALNYLAM PHARMACEUTICALS INC (PRN)-110,000,000Exited13F
AMEDAMEDISYS INC-2,744Exited13F
AMPHAMPHASTAR PHARMACEUTICALS IN-9,579Exited13F
CRLCHARLES RIV LABS INTL INC-43Exited13F
DCTHDELCATH SYS INC-812,561Exited13F
HLVXHILLEVAX INC-1,882,654Exited13F
IARTINTEGRA LIFESCIENCES HLDGS C (PRN)-174,364,000Exited13F
IQVIQVIA HLDGS INC-1,623Exited13F
LQDALIQUIDIA CORPORATION-1,616,778Exited13F
MEDPMEDPACE HLDGS INC-736Exited13F
MREOMEREO BIOPHARMA GROUP PLC-6,710,429Exited13F
MRNAMODERNA INC-1,000,000Exited13F
NPCENEUROPACE INC-500,000Exited13F
OSCROSCAR HEALTH INC-11,649,591Exited13F
PACSPACS GROUP INC-11,421Exited13F
LUNGPULMONX CORP-1,890,000Exited13F
RXSTRXSIGHT INC-888,950Exited13F
SLPSIMULATIONS PLUS INC-354,089Exited13F
UHSUNIVERSAL HLTH SVCS INC-1,597Exited13F
PCVXVAXCYTE INC-225,000Exited13F
XERSXERIS BIOPHARMA HOLDINGS INC (PRN)-10,500,000Exited13F
NVCRNOVOCURE LTD-825,119Exited13F