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Rubric Capital Management LP
Hedge Fund • Long/Short
Rubric Capital Management LP is a Long/Short Hedge Fund based in New York, NY led by Margaret Kossakowski, reporting $7.1B in AUM as of Q3 2025 with 31% Healthcare concentration, 56% concentrated in top 10 holdings, and 22% allocation to TLN.
CFOMargaret Kossakowski
- Portfolio Value
- $6.9B
- Positions
- 68
- Top Holding
- TLN at 22.06%
- Last Reported
- Q3 2025
Top Holdings
Largest long holdings in Rubric Capital Management LP's portfolio (55.8% of total portfolio)
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| Holding | Sector | Position | Weight | Traded | Ownership |
|---|---|---|---|---|---|
Unknown Unknown | $1.5B | 22.06% | -$384.2M Sold | 7.88% 3.6M shares | |
Rental & Leasing Services Industrials | $560.7M | 8.07% | -$5.6M Sold | 3.28% 3.4M shares | |
Oil & Gas Midstream Energy | $370.9M | 5.34% | — | 8.97% 9.2M shares | |
Biotechnology Healthcare | $302.6M | 4.36% | -$5.6M Sold | 2.93% 20.0M shares | |
Independent Power Producers Utilities | $218.0M | 3.14% | — | 5.38% 15.9M shares | |
Biotechnology Healthcare | $202.6M | 2.92% | — | 8.96% 10.7M shares | |
Engineering & Construction Industrials | $189.3M | 2.73% | +$21.0M Bought | 2.78% 4.5M shares | |
Insurance - Property & Casualty Financial Services | $174.2M | 2.51% | — | 3.71% 2.1M shares | |
Financial - Capital Markets Financial Services | $170.3M | 2.45% | +$9.4M Bought | 3.79% 18.0M shares | |
Biotechnology Healthcare | $155.3M | 2.24% | +$3.5M Bought | 5.40% 4.0M shares |
Changes
Portfolio activity, position movements, and quarter-over-quarter changes in Rubric Capital Management LP's latest filing
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Market Value
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Net Flows % of MV
Turnover Ratio
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Reduced Holdings
Increased Positions
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Decreased Positions
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Analytics
Portfolio insights and performance metrics for Rubric Capital Management LP
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