DEERFIELD MANAGEMENT CO /NY Portfolio Holdings
Q3 2025•142 long positions•$6.0B portfolio value
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Holding161 | Sector | Position↕ | Traded↕ | Ownership↕ | Shares Δ↕ | Shares Δ % | Market Cap↕ | Owned Since↕ |
|---|---|---|---|---|---|---|---|---|
Biotechnology Healthcare | $1.6B 25.79% | — | 24.95% 18.0M shares | — | — | $6.2B Mid Cap | Q3 2021 Held for 4y 2m | |
Medical - Healthcare Plans Healthcare | $322.8M 5.35% | +$209.1M Bought | 1.84% 9.0M shares | 3.2M → 9.0M +$209.1M | +183.99% | $17.5B Large Cap | Q4 2016 Held for 8y 11m | |
Biotechnology Healthcare | $286.9M 4.75% | -$31.8M Sold | 4.02% 3.0M shares | 3.4M → 3.0M −$31.8M | -9.98% | $7.1B Mid Cap | Q4 2021 Held for 3y 11m | |
Drug Manufacturers - Specialty & Generic Healthcare | $238.6M 3.95% | +$744.2K Bought | 2.07% 24.1M shares | 24.0M → 24.1M +$744.2K | +0.31% | $11.5B Large Cap | Q1 2015 Held for 10y 8m | |
Biotechnology Healthcare | $178.6M 2.96% | -$48.1M Sold | 0.942% 426.0K shares | 540.6K → 426.0K −$48.1M | -21.2% | $19.0B Large Cap | Q1 2025 Held for 8 months | |
Biotechnology Healthcare | $170.5M 2.83% | +$12.4M Bought | 1.95% 3.7M shares | 3.4M → 3.7M +$12.4M | +7.87% | $8.7B Mid Cap | Q1 2020 Held for 5y 8m | |
Drug Manufacturers - Specialty & Generic Healthcare | $168.5M 2.79% | -$86.3M Sold | 5.6% 7.0M shares | 10.6M → 7.0M −$86.3M | -33.88% | $3.0B Mid Cap | Q3 2024 Held for 1y 2m | |
Drug Manufacturers - Specialty & Generic Healthcare | $166.3M 2.76% | +$2.3M Bought | 1.19% 1.2M shares | 1.2M → 1.2M +$2.3M | +1.42% | $13.9B Large Cap | Q1 2021 Held for 4y 8m | |
Biotechnology Healthcare | $130.0M 2.15% | +$92.1M Bought | 6.48% 9.1M shares | 2.6M → 9.1M +$92.1M | +242.89% | $2.0B Mid Cap | Q4 2020 Held for 4y 11m | |
Biotechnology Healthcare | $129.5M 2.15% | +$129.5M Bought | 1.24% 2.0M shares | — | — | $10.4B Large Cap | Q3 2025 Held for 2 months | |
Biotechnology Healthcare | $121.3M 2.01% | -$24.2M Sold | 3.79% 4.3M shares | 5.1M → 4.3M −$24.2M | -16.6% | $3.2B Mid Cap | Q1 2024 Held for 1y 8m | |
Biotechnology Healthcare | $105.8M 1.75% | +$8.5M Bought | 5.71% 3.6M shares | 3.3M → 3.6M +$8.5M | +8.75% | $1.9B Small Cap | Q1 2025 Held for 8 months | |
Drug Manufacturers - General Healthcare | $105.4M 1.75% | +$105.4M Bought | 0.115% 2.3M shares | — | — | $91.8B Large Cap | Q3 2025 Held for 2 months | |
Medical - Devices Healthcare | $102.7M 1.7% | +$14.1M Bought | 8.48% 11.5M shares | 9.9M → 11.5M +$14.1M | +15.88% | $1.2B Small Cap | Q2 2018 Held for 7y 5m | |
Biotechnology Healthcare | $98.9M 1.64% | +$30.3M Bought | 35.76% 30.6M shares | 21.2M → 30.6M +$30.3M | +44.16% | $276.5M Micro Cap | Q2 2020 Held for 5y 5m | |
Medical - Care Facilities Healthcare | $98.6M 1.63% | -$31.5M Sold | 4.9% 11.6M shares | 15.4M → 11.6M −$31.5M | -24.22% | $2.0B Mid Cap | Q2 2018 Held for 7y 5m | |
Biotechnology Healthcare | $98.0M 1.62% | +$41.3M Bought | 4.06% 5.0M shares | 2.9M → 5.0M +$41.3M | +72.77% | $2.4B Mid Cap | Q3 2022 Held for 3y 2m | |
Unknown Unknown | $96.6M 1.6% | — | — 3.0M shares | — | — | — — | Q4 2024 Held for 11 months | |
Biotechnology Healthcare | $92.4M 1.53% | +$56.8M Bought | 5.8% 12.2M shares | 4.7M → 12.2M +$56.8M | +159.36% | $1.6B Small Cap | Q1 2023 Held for 2y 8m | |
Drug Manufacturers - General Healthcare | $86.4M 1.43% | +$14.5M Bought | 0.041% 1.0M shares | 857.7K → 1.0M +$14.5M | +20.09% | $209.64B Mega Cap | Q2 2025 Held for 5 months | |
Drug Manufacturers - General Healthcare | $84.2M 1.4% | -$25.5M Sold | 0.058% 3.3M shares | 4.3M → 3.3M −$25.5M | -23.28% | $144.87B Large Cap | Q1 2025 Held for 8 months | |
Medical - Healthcare Information Services Healthcare | $82.4M 1.37% | +$34.4M Bought | 4.2% 6.7M shares | 3.9M → 6.7M +$34.4M | +71.66% | $2.0B Small Cap | Q1 2025 Held for 8 months | |
Medical - Devices Healthcare | $77.7M 1.29% | +$67.4M Bought | 3.54% 1.0M shares | 140.0K → 1.0M +$67.4M | +648.35% | $2.2B Mid Cap | Q2 2025 Held for 5 months | |
Biotechnology Healthcare | $75.4M 1.25% | -$22.3M Sold | 7.59% 7.5M shares | 9.7M → 7.5M −$22.3M | -22.84% | $993.2M Small Cap | Q4 2022 Held for 2y 11m | |
Biotechnology Healthcare | $67.8M 1.12% | -$33.1M Sold | 0.223% 471.0K shares | 700.7K → 471.0K −$33.1M | -32.78% | $30.4B Large Cap | Q2 2024 Held for 1y 5m | |
Medical - Devices Healthcare | $63.4M 1.05% | — | 0.835% 226.1K shares | — | — | $7.6B Mid Cap | Q3 2023 Held for 2y 2m | |
Biotechnology Healthcare | $60.9M 1.01% | +$10.6M Bought | 3.8% 2.4M shares | 2.0M → 2.4M +$10.6M | +21.07% | $1.6B Small Cap | Q4 2023 Held for 1y 11m | |
Biotechnology Healthcare | $60.8M 1.01% | — | 2.64% 919.4K shares | — | — | $2.3B Mid Cap | Q2 2023 Held for 2y 5m | |
Biotechnology Healthcare | $58.6M 0.971% | -$48.0M Sold | 2.46% 2.2M shares | 3.9M → 2.2M −$48.0M | -45.01% | $2.4B Mid Cap | Q3 2022 Held for 3y 2m | |
Unknown Unknown | $56.6M 0.938% | +$56.6M New | 6.17% 4.9M shares | 0 → 4.9M +$56.6M | New | $917.1M Small Cap | Q3 2025 Held for 2 months | |
Medical - Instruments & Supplies Healthcare | $46.7M 0.775% | +$1.6M Bought | 1.38% 2.3M shares | 2.2M → 2.3M +$1.6M | +3.53% | $3.4B Mid Cap | Q3 2024 Held for 1y 2m | |
Biotechnology Healthcare | $44.6M 0.739% | +$8.2M Bought | 3.99% 840.9K shares | 686.9K → 840.9K +$8.2M | +22.41% | $1.1B Small Cap | Q1 2025 Held for 8 months | |
Biotechnology Healthcare | $38.7M 0.641% | +$38.7M New | 4.45% 3.3M shares | 0 → 3.3M +$38.7M | New | $868.2M Small Cap | Q3 2025 Held for 2 months | |
Medical - Care Facilities Healthcare | $38.0M 0.63% | -$257.3K Sold | 9.37% 4.7M shares | 4.8M → 4.7M −$257.3K | -0.67% | $406.0M Small Cap | Q3 2022 Held for 3y 2m | |
Drug Manufacturers - Specialty & Generic Healthcare | $37.0M 0.613% | -$1.8M Sold | 4.48% 2.6M shares | 2.7M → 2.6M −$1.8M | -4.7% | $825.2M Small Cap | Q4 2023 Held for 1y 11m | |
Biotechnology Healthcare | $36.2M 0.601% | +$36.2M New | 1.73% 733.5K shares | 0 → 733.5K +$36.2M | New | $2.1B Mid Cap | Q3 2025 Held for 2 months | |
Medical - Devices Healthcare | $35.8M 0.593% | +$2.8M Bought | 2.46% 760.2K shares | 700.3K → 760.2K +$2.8M | +8.56% | $1.5B Small Cap | Q4 2023 Held for 1y 11m | |
Unknown Unknown | $34.7M 0.575% | — | — 1.6M shares | — | — | — — | Q3 2024 Held for 1y 2m | |
Medical - Diagnostics & Research Healthcare | $34.3M 0.569% | +$17.8M Bought | 3.44% 4.4M shares | 2.1M → 4.4M +$17.8M | +107.05% | $997.3M Small Cap | Q2 2025 Held for 5 months | |
Biotechnology Healthcare | $34.2M 0.568% | +$34.2M Bought | 0.718% 993.0K shares | — | — | $4.8B Mid Cap | Q3 2025 Held for 2 months | |
Biotechnology Healthcare | $33.2M 0.55% | +$6.9M Bought | 4.59% 4.7M shares | 3.7M → 4.7M +$6.9M | +26.38% | $722.1M Small Cap | Q2 2021 Held for 4y 5m | |
Biotechnology Healthcare | $32.4M 0.537% | -$4.6M Sold | 0.8% 572.3K shares | 653.0K → 572.3K −$4.6M | -12.36% | $4.0B Mid Cap | Q4 2024 Held for 11 months | |
Medical - Diagnostics & Research Healthcare | $31.9M 0.528% | +$31.9M Bought | 4.12% 2.2M shares | — | — | $773.9M Small Cap | Q3 2025 Held for 2 months | |
Biotechnology Healthcare | $31.0M 0.513% | -$35.1M Sold | 0.052% 67.9K shares | 145.0K → 67.9K −$35.1M | -53.15% | $59.8B Large Cap | Q4 2023 Held for 1y 11m | |
Medical - Care Facilities Healthcare | $29.4M 0.488% | +$29.4M Bought | 1.29% 1.2M shares | — | — | $2.3B Mid Cap | Q3 2025 Held for 2 months | |
Unknown Unknown | $28.5M 0.473% | — | 2.2% 970.6K shares | — | — | $1.3B Small Cap | Q1 2025 Held for 8 months | |
Biotechnology Healthcare | $28.4M 0.471% | — | 4.61% 8.0M shares | — | — | $617.0M Small Cap | Q3 2024 Held for 1y 2m | |
Medical - Healthcare Information Services Healthcare | $26.3M 0.435% | +$2.4M Bought | 1.86% 1.1M shares | 1.0M → 1.1M +$2.4M | +10.07% | $1.4B Small Cap | Q2 2024 Held for 1y 5m | |
Biotechnology Healthcare | $24.9M 0.413% | +$3.5M Bought | 0.923% 726.0K shares | 625.0K → 726.0K +$3.5M | +16.16% | $2.7B Mid Cap | Q2 2025 Held for 5 months | |
REIT - Healthcare Facilities Real Estate | $24.8M 0.411% | — | 0.078% 354.0K shares | — | — | $31.8B Large Cap | Q2 2025 Held for 5 months |
