Partner Fund Management, L.P. Portfolio Holdings
Q3 2025•66 long positions•$1.2B portfolio value
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Holding78 | Sector | Position↕ | Traded↕ | Ownership↕ | Shares Δ↕ | Shares Δ % | Market Cap↕ | Owned Since↕ |
|---|---|---|---|---|---|---|---|---|
Drug Manufacturers - General Healthcare | $171.8M 14.85% | -$32.7M Sold | 0.025% 225.1K shares | 268.0K → 225.1K −$32.7M | -16.0% | $684.00B Mega Cap | Q4 2020 Held for 4y 11m | |
Medical - Care Facilities Healthcare | $93.7M 8.1% | -$7.6M Sold | 0.523% 461.7K shares | 499.2K → 461.7K −$7.6M | -7.53% | $17.9B Large Cap | Q2 2020 Held for 5y 5m | |
Biotechnology Healthcare | $64.4M 5.57% | +$5.7M Bought | 1.06% 530.3K shares | 483.1K → 530.3K +$5.7M | +9.78% | $6.1B Mid Cap | Q2 2022 Held for 3y 5m | |
Medical - Distribution Healthcare | $55.9M 4.83% | — | 0.058% 72.3K shares | — | — | $96.1B Large Cap | Q3 2019 Held for 6y 2m | |
Medical - Devices Healthcare | $49.4M 4.27% | +$7.3M Bought | 0.5% 195.1K shares | 166.3K → 195.1K +$7.3M | +17.34% | $9.9B Mid Cap | Q3 2015 Held for 10y 2m | |
Biotechnology Healthcare | $40.1M 3.47% | +$24.8M Bought | 0.211% 95.7K shares | 36.4K → 95.7K +$24.8M | +162.84% | $19.0B Large Cap | Q4 2024 Held for 11 months | |
Medical - Instruments & Supplies Healthcare | $34.6M 2.99% | -$5.2M Sold | 0.022% 77.4K shares | 89.0K → 77.4K −$5.2M | -13.0% | $160.32B Large Cap | Q4 2022 Held for 2y 11m | |
Medical - Devices Healthcare | $29.7M 2.56% | -$869.4K Sold | 0.065% 381.3K shares | 392.5K → 381.3K −$869.4K | -2.85% | $45.7B Large Cap | Q4 2014 Held for 10y 11m | |
Unknown Unknown | $28.9M 2.5% | -$15.2M Sold | — 145.3K shares | 221.8K → 145.3K −$15.2M | -34.47% | — — | Q3 2024 Held for 1y 2m | |
Medical - Care Facilities Healthcare | $28.0M 2.42% | -$2.8M Sold | 0.028% 65.8K shares | 72.3K → 65.8K −$2.8M | -9.02% | $99.7B Large Cap | Q4 2017 Held for 7y 11m | |
Medical - Healthcare Plans Healthcare | $26.1M 2.26% | -$10.0M Sold | 0.027% 346.7K shares | 479.0K → 346.7K −$10.0M | -27.63% | $95.6B Large Cap | Q1 2025 Held for 8 months | |
Medical - Distribution Healthcare | $25.2M 2.17% | +$8.5M Bought | — 80.5K shares | 53.3K → 80.5K +$8.5M | +51.06% | — — | Q2 2025 Held for 5 months | |
Medical - Devices Healthcare | $24.4M 2.11% | +$920.5K Bought | 9.74% 1.7M shares | 1.7M → 1.7M +$920.5K | +3.92% | $250.9M Micro Cap | Q1 2025 Held for 8 months | |
Medical - Care Facilities Healthcare | $23.8M 2.05% | +$23.8M Bought | 0.183% 116.3K shares | — | — | $13.0B Large Cap | Q4 2020 Held for 4y 11m | |
Medical - Diagnostics & Research Healthcare | $23.4M 2.02% | +$8.0M Bought | 0.172% 133.7K shares | 88.2K → 133.7K +$8.0M | +51.6% | $13.6B Large Cap | Q2 2019 Held for 6y 5m | |
Medical - Healthcare Plans Healthcare | $20.5M 1.77% | +$20.5M Bought | 0.117% 574.4K shares | — | — | $17.5B Large Cap | Q4 2020 Held for 4y 11m | |
Drug Manufacturers - General Healthcare | $19.8M 1.72% | +$19.8M Bought | 0.009% 236.5K shares | — | — | $209.64B Mega Cap | Q3 2025 Held for 2 months | |
Medical - Healthcare Plans Healthcare | $19.6M 1.7% | +$19.6M Bought | 0.027% 60.8K shares | — | — | $72.8B Large Cap | Q4 2021 Held for 3y 11m | |
Medical - Diagnostics & Research Healthcare | $18.6M 1.61% | +$2.3M Bought | 0.084% 115.6K shares | 101.3K → 115.6K +$2.3M | +14.17% | $22.1B Large Cap | Q2 2025 Held for 5 months | |
Biotechnology Healthcare | $17.3M 1.5% | +$17.3M New | 0.495% 1.2M shares | 0 → 1.2M +$17.3M | New | $3.5B Mid Cap | Q3 2025 Held for 2 months | |
Medical - Diagnostics & Research Healthcare | $17.0M 1.47% | +$11.1M Bought | 1.71% 2.2M shares | 770.0K → 2.2M +$11.1M | +186.81% | $997.3M Small Cap | Q1 2025 Held for 8 months | |
Biotechnology Healthcare | $17.0M 1.47% | -$10.1M Sold | 0.171% 327.2K shares | 521.8K → 327.2K −$10.1M | -37.3% | $9.9B Mid Cap | Q4 2024 Held for 11 months | |
Biotechnology Healthcare | $16.5M 1.42% | -$11.1M Sold | 0.458% 243.4K shares | 407.2K → 243.4K −$11.1M | -40.23% | $3.6B Mid Cap | Q4 2024 Held for 11 months | |
Unknown Unknown | $16.2M 1.4% | +$7.8M Bought | — 666.2K shares | 345.0K → 666.2K +$7.8M | +93.12% | — — | Q1 2024 Held for 1y 8m | |
Medical - Healthcare Plans Healthcare | $15.5M 1.34% | +$1.6M Bought | 0.317% 820.6K shares | 735.0K → 820.6K +$1.6M | +11.65% | $4.9B Mid Cap | Q2 2023 Held for 2y 5m | |
Biotechnology Healthcare | $15.5M 1.34% | +$15.5M Bought | 0.177% 331.1K shares | — | — | $8.7B Mid Cap | Q3 2025 Held for 2 months | |
Biotechnology Healthcare | $14.9M 1.29% | +$14.9M New | 0.805% 513.7K shares | 0 → 513.7K +$14.9M | New | $1.9B Small Cap | Q3 2025 Held for 2 months | |
ETF ETF | $14.1M 1.22% | +$2.7M Bought | — 21.2K shares | 17.1K → 21.2K +$2.7M | +23.83% | — — | Q4 2024 Held for 11 months | |
Drug Manufacturers - Specialty & Generic Healthcare | $13.5M 1.17% | -$19.2M Sold | 0.45% 561.5K shares | 1.4M → 561.5K −$19.2M | -58.59% | $3.0B Mid Cap | Q1 2025 Held for 8 months | |
Medical - Healthcare Information Services Healthcare | $12.4M 1.07% | +$12.4M Bought | 0.025% 41.5K shares | — | — | $48.8B Large Cap | Q3 2025 Held for 2 months | |
Biotechnology Healthcare | $12.3M 1.06% | -$5.0M Sold | 0.173% 130.7K shares | 183.9K → 130.7K −$5.0M | -28.9% | $7.1B Mid Cap | Q2 2025 Held for 5 months | |
Biotechnology Healthcare | $11.8M 1.02% | -$858.8K Sold | 0.31% 248.1K shares | 266.2K → 248.1K −$858.8K | -6.8% | $3.8B Mid Cap | Q2 2025 Held for 5 months | |
Biotechnology Healthcare | $11.2M 0.967% | +$11.2M Bought | 0.019% 19.9K shares | — | — | $59.6B Large Cap | Q3 2025 Held for 2 months | |
Medical - Devices Healthcare | $11.2M 0.966% | -$4.0M Sold | 0.202% 65.0K shares | 88.2K → 65.0K −$4.0M | -26.27% | $5.5B Mid Cap | Q2 2025 Held for 5 months | |
Unknown Unknown | $9.5M 0.824% | -$667.1K Sold | — 1.7M shares | 1.8M → 1.7M −$667.1K | -6.54% | — — | Q4 2022 Held for 2y 11m | |
Medical - Diagnostics & Research Healthcare | $9.2M 0.797% | -$3.7M Sold | 0.052% 30.8K shares | 43.1K → 30.8K −$3.7M | -28.63% | $17.8B Large Cap | Q1 2024 Held for 1y 8m | |
Unknown Unknown | $8.6M 0.742% | — | — 80.4K shares | — | — | — — | Q2 2025 Held for 5 months | |
Biotechnology Healthcare | $8.1M 0.698% | -$155.5K Sold | 1.65% 239.6K shares | 244.3K → 239.6K −$155.5K | -1.89% | $487.9M Small Cap | Q1 2023 Held for 2y 8m | |
Drug Manufacturers - Specialty & Generic Healthcare | $8.0M 0.695% | +$6.2M Bought | 0.058% 57.2K shares | 12.8K → 57.2K +$6.2M | +346.5% | $13.9B Large Cap | Q4 2024 Held for 11 months | |
Unknown Unknown | $7.2M 0.623% | -$17.8M Sold | — 356.8K shares | 1.2M → 356.8K −$17.8M | -71.2% | — — | Q4 2024 Held for 11 months | |
Biotechnology Healthcare | $6.8M 0.587% | -$10.6M Sold | 0.301% 360.5K shares | 923.4K → 360.5K −$10.6M | -60.96% | $2.3B Mid Cap | Q2 2025 Held for 5 months | |
Biotechnology Healthcare | $6.4M 0.55% | +$6.4M New | 0.207% 157.9K shares | 0 → 157.9K +$6.4M | New | $3.1B Mid Cap | Q3 2025 Held for 2 months | |
Biotechnology Healthcare | $5.9M 0.512% | -$4.0M Sold | 0.409% 436.2K shares | 732.3K → 436.2K −$4.0M | -40.44% | $1.4B Small Cap | Q1 2025 Held for 8 months | |
Medical - Instruments & Supplies Healthcare | $5.1M 0.441% | +$5.1M Bought | 0.037% 74.4K shares | — | — | $13.6B Large Cap | Q3 2025 Held for 2 months | |
Biotechnology Healthcare | $4.9M 0.42% | +$4.9M New | 0.073% 48.2K shares | 0 → 48.2K +$4.9M | New | $6.7B Mid Cap | Q3 2025 Held for 2 months | |
Biotechnology Healthcare | $4.8M 0.417% | +$3.8M Bought | 0.163% 183.5K shares | 37.7K → 183.5K +$3.8M | +386.46% | $3.0B Mid Cap | Q2 2025 Held for 5 months | |
Medical - Instruments & Supplies Healthcare | $4.8M 0.416% | +$4.8M Bought | 0.026% 18.4K shares | — | — | $18.9B Large Cap | Q3 2025 Held for 2 months | |
Unknown Unknown | $4.7M 0.41% | +$4.7M Bought | — 61.8K shares | — | — | — — | Q1 2025 Held for 8 months | |
Unknown Unknown | $4.7M 0.408% | -$615.1K Sold | — 6.4K shares | 7.2K → 6.4K −$615.1K | -11.52% | — — | Q4 2022 Held for 2y 11m | |
Biotechnology Healthcare | $4.3M 0.368% | +$174.8K Bought | 0.499% 452.7K shares | 434.1K → 452.7K +$174.8K | +4.28% | $853.6M Small Cap | Q2 2025 Held for 5 months |
