Seth Klarman - Baupost Group
As of Q2 2026, Seth Klarman reported 23 long-equity positions worth $5.42B in aggregate.
Copy-investor backtest
- Latest quarter
- +3.22%
- 1-year
- +20.94%
- 3-year
- +48.31%
- 5-year
- +12.01%
- 3-year vs S&P 500
- -25.70%
- 5-year vs S&P 500
- -61.90%
- 5-year top 5
- -0.29%
Return from mechanically copying the disclosed 13F equity portfolio after each filing and rebalancing at the next. The vs S&P 500 figures subtract SPY over that manager's own rebalance dates, so both sides cover the same days; both are price return, excluding dividends. Method & limitations.
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Updated 2026-06-06 from SEC 13F data.
Live quotes available for 7 of 32 rows. Rows without a quote are marked unavailable.
| 1 | LNG | CHENIERE ENERGY INC | 17.88% | Add +11.3% | 15,365,230 | $1.06B | No quote | No quote |
| 2 | VSAT | VIASAT INC | 11.67% | - | 11,533,137 | $694.99M | $60.26 | No quote |
| 3 | PXD | PIONEER NAT RES CO | 9.47% | Add +28.4% | 4,065,000 | $563.78M | No quote | No quote |
| 4 | EBAY | EBAY INC | 9.43% | - | 9,315,000 | $561.14M | $60.24 | No quote |
| 5 | MU | MICRON TECHNOLOGY INC | 6.24% | - | 19,706,035 | $371.26M | $18.84 | No quote |
| 6 | THRX | THERAVANCE INC | 6.01% | - | 19,815,983 | $358.08M | No quote | No quote |
| 7 | PBF | PBF ENERGY INC | 5.26% | Add +27.3% | 11,025,000 | $313.33M | $28.42 | No quote |
| 8 | AR | ANTERO RES CORP | 4.63% | Reduce -14.2% | 8,022,863 | $275.51M | $34.34 | No quote |
| 9 | KERX | KERYX BIOPHARMACEUTICALS INC | 4.32% | Add +15.2% | 25,791,678 | $257.4M | No quote | No quote |
| 10 | ATRA | ATARA BIOTHERAPEUTICS INC | 4.26% | Add +1.0% | 4,809,632 | $253.76M | No quote | No quote |
| 11 | FWP | FORWARD PHARMA A/S | 3.43% | - | 5,367,300 | $204.23M | No quote | No quote |
| 12 | SEMI | SUNEDISON SEMICONDUCTOR LTD | 2.41% | Add +5.1% | 8,297,979 | $143.31M | No quote | No quote |
| 13 | VRTV | VERITIV CORP | 1.52% | Add +9.1% | 2,482,157 | $90.5M | No quote | No quote |
| 14 | TBPH | THERAVANCE BIOPHARMA INC | 1.40% | Add +0.8% | 6,420,028 | $83.59M | No quote | No quote |
| 15 | OCN | OCWEN FINL CORP | 1.31% | Reduce -2.3% | 7,655,703 | $78.09M | No quote | No quote |
| 16 | CWSA | CITIGROUP INC | 1.27% | Reduce -0.1% | 102,553,207 | $75.89M | No quote | No quote |
| 17 | NG | NOVAGOLD RES INC | 1.25% | - | 21,688,300 | $74.17M | $3.42 | No quote |
| 18 | IMOS | CHIPMOS TECH BERMUDA LTD | 1.20% | - | 3,283,235 | $71.71M | No quote | No quote |
| 19 | FTR | FRONTIER COMMUNICATIONS CORP | 1.12% | New | 13,500,000 | $66.83M | No quote | No quote |
| 20 | KLXI | KLX INC | 1.11% | - | 1,500,000 | $66.2M | No quote | No quote |
| 21 | BXE | BELLATRIX EXPLORATION LTD | 0.85% | - | 21,840,500 | $50.89M | No quote | No quote |
| 22 | KOS | KOSMOS ENERGY LTD | 0.85% | Reduce -17.1% | 6,000,000 | $50.58M | No quote | No quote |
| 23 | PRTK | PARATEK PHARMACEUTICALS INC | 0.67% | Reduce -11.0% | 1,544,498 | $39.8M | No quote | No quote |
| 24 | AIGWS | AMERICAN INTL GROUP INC | 0.59% | Add +0.3% | 1,258,496 | $34.87M | No quote | No quote |
| 25 | FTRPR | FRONTIER COMMUNICATIONS CORP | 0.55% | New | 325,000 | $32.47M | No quote | No quote |
| 26 | KIN | KINDRED BIOSCIENCES INC | 0.35% | - | 3,013,848 | $20.55M | No quote | No quote |
| 27 | BITI | BIOTIE THERAPIES OYJ | 0.29% | New | 869,643 | $17.37M | No quote | No quote |
| 28 | AOI | ALLIANCE ONE INTL INC | 0.26% | Reduce -90.0% | 638,364 | $15.26M | No quote | No quote |
| 29 | ALDW | ALON USA PARTNERS LP | 0.22% | Reduce -34.1% | 629,188 | $13.23M | No quote | No quote |
| 30 | SN | SANCHEZ ENERGY CORP | 0.10% | New | 619,505 | $6.07M | $9.80 | No quote |
| 31 | NCQ | NOVACOPPER INC | 0.08% | Add +76.5% | 10,600,758 | $4.47M | No quote | No quote |
Other instruments
Bonds, warrants, or non-share principal positions reported alongside the equity portfolio.
| 1 | THRX | THERAVANCE INCNOTE 2.125% 1/1 | OTHER | 48,230,000 | $45.52M |