Partner Fund Management, L.P.
Hedge Fund • Sector
Partner Fund Management, L.P. is a Sector-focused Hedge Fund based in San Francisco, CA led by Jonathan Jude Aljoe, reporting $2.0B in AUM as of Q3 2025 with 91% Healthcare concentration and 52% concentrated in top 10 holdings.
CFOJonathan Jude Aljoe
- Portfolio Value
- $1.2B
- Positions
- 66
- Top Holding
- LLY at 14.85%
- Last Reported
- Q3 2025
Top Holdings
Largest long holdings in Partner Fund Management, L.P.'s portfolio (51.6% of total portfolio)
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| Holding | Sector | Position | Weight | Traded | Ownership |
|---|---|---|---|---|---|
Drug Manufacturers - General Healthcare | $171.8M | 14.85% | -$32.7M Sold | 0.03% 225.1K shares | |
Medical - Care Facilities Healthcare | $93.7M | 8.10% | -$7.6M Sold | 0.52% 461.7K shares | |
Biotechnology Healthcare | $64.4M | 5.57% | +$5.7M Bought | 1.06% 530.3K shares | |
Medical - Distribution Healthcare | $55.9M | 4.83% | — | 0.06% 72.3K shares | |
Medical - Devices Healthcare | $49.4M | 4.27% | +$7.3M Bought | 0.50% 195.1K shares | |
Biotechnology Healthcare | $40.1M | 3.47% | +$24.8M Bought | 0.21% 95.7K shares | |
Medical - Instruments & Supplies Healthcare | $34.6M | 2.99% | -$5.2M Sold | 0.02% 77.4K shares | |
Medical - Devices Healthcare | $29.7M | 2.56% | -$869.4K Sold | 0.06% 381.3K shares | |
Unknown Unknown | $28.9M | 2.50% | -$15.2M Sold | — 145.3K shares | |
Medical - Care Facilities Healthcare | $28.0M | 2.42% | -$2.8M Sold | 0.03% 65.8K shares |
Changes
Portfolio activity, position movements, and quarter-over-quarter changes in Partner Fund Management, L.P.'s latest filing
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Decreased Positions
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Analytics
Portfolio insights and performance metrics for Partner Fund Management, L.P.
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