COMMODORE CAPITAL LP
Hedge Fund • Long/Short
COMMODORE CAPITAL LP is a Long/Short Hedge Fund based in New York, NY led by Michael Jonathan Kramarz, managing $2.0B across 37 long positions as of Q3 2025 with 93% Healthcare concentration, 59% concentrated in top 10 holdings, and 16% allocation to MRUS.
Managing PartnerMichael Jonathan Kramarz
- Portfolio Value
- $2.0B
- Positions
- 37
- Top Holding
- MRUS at 16.2%
- Last Reported
- Q3 2025
Top Holdings
Largest long holdings in COMMODORE CAPITAL LP's portfolio (58.9% of total portfolio)
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| Holding | Sector | Position | Weight | Traded | Ownership |
|---|---|---|---|---|---|
Biotechnology Healthcare | $331.9M | 16.20% | — | 4.65% 3.5M shares | |
Biotechnology Healthcare | $121.1M | 5.91% | +$2.2M Bought | 1.94% 1.4M shares | |
Biotechnology Healthcare | $108.4M | 5.29% | -$13.0M Sold | 3.50% 2.7M shares | |
Biotechnology Healthcare | $104.1M | 5.08% | +$70.9M Bought | 5.19% 7.3M shares | |
Biotechnology Healthcare | $96.1M | 4.69% | — | 7.92% 4.7M shares | |
Biotechnology Healthcare | $93.9M | 4.58% | +$533.3K Bought | 4.02% 2.3M shares | |
Biotechnology Healthcare | $92.9M | 4.54% | +$19.4M Bought | 1.88% 3.1M shares | |
Biotechnology Healthcare | $91.3M | 4.46% | +$50.0M Bought | 2.54% 1.4M shares | |
Biotechnology Healthcare | $88.7M | 4.33% | +$19.1M Bought | 9.86% 17.0M shares | |
Biotechnology Healthcare | $78.3M | 3.82% | -$10.9M Sold | 4.56% 3.0M shares |
Changes
Portfolio activity, position movements, and quarter-over-quarter changes in COMMODORE CAPITAL LP's latest filing
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Market Value
Q/Q Change
Net Flows % of MV
Turnover Ratio
New Purchases
Added To
Sold Out Of
Reduced Holdings
Increased Positions
| Position | Shares Δ |
|---|---|
New | |
New | |
New | |
New | |
+213.69% |
Decreased Positions
| Position | Shares Δ |
|---|---|
Sold | |
Sold | |
Sold | |
-50.21% | |
-35.5% |
Analytics
Portfolio insights and performance metrics for COMMODORE CAPITAL LP
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